WASHINGTON (AP) -- No batteries required: Scientists are creating a biological pacemaker by injecting a gene into the hearts of sick pigs that changed ordinary cardiac cells into a special kind that induces a steady heartbeat.

The study, published Wednesday, is one step toward developing an alternative to electronic pacemakers that are implanted into 300,000 Americans a year.

"There are people who desperately need a pacemaker but can't get one safely," said Dr. Eduardo Marban, director of the Cedars-Sinai Heart Institute in Los Angeles, who led the work. "This development heralds a new era of gene therapy" that one day might offer them an option.

Your heartbeat depends on a natural pacemaker, a small cluster of cells it's about the size of a peppercorn, Marban says that generates electrical activity. Called the sinoatrial node, it acts like a metronome to keep the heart pulsing at 60 to 100 beats a minute or so, more when you're active. If that node quits working correctly, hooking the heart to an electronic pacemaker works very well for most people.

But about 2 percent of recipients develop an infection that requires the pacemaker to be removed for weeks until antibiotics wipe out the germs, Marban said. And some fetuses are at risk of stillbirth when their heartbeat falters, a condition called congenital heart block.

For over a decade, teams of researchers have worked to create a biological alternative that might help those kinds of patients, trying such approaches as using stem cells to spur the growth of a new sinoatrial node.

Marban's newest attempt uses gene therapy to reprogram a small number of existing heart muscle cells so that they start looking and acting like natural pacemaker cells instead.

Because pigs' hearts are so similar to human hearts, Marban's team studied the approach in 12 laboratory pigs with a defective heart rhythm.

They used a gene named TBX18 that plays a role in the embryonic development of the sinoatrial node. Working through a vein, they injected the gene into some of the pigs' hearts in a spot that doesn't normally initiate heartbeats and tracked them for two weeks.

Two days later, treated pigs had faster heartbeats than control pigs who didn't receive the gene, the researchers reported in the journal Science Translational Medicine. That heart rate automatically fluctuated, faster during the day. The treated animals also became more active, without signs of side effects.

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Scientists Try To Create Biological Pacemaker

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WASHINGTON No batteries required: Scientists are creating a biological pacemaker by injecting a gene into the hearts of sick pigs that changed ordinary cardiac cells into a special kind that induces a steady heartbeat.

The study, published Wednesday, is one step toward developing an alternative to electronic pacemakers that are implanted into 300,000 Americans a year.

There are people who desperately need a pacemaker but cant get one safely, said Dr. Eduardo Marban, director of the Cedars-Sinai Heart Institute in Los Angeles, who led the work. This development heralds a new era of gene therapy that one day might offer them an option.

Your heartbeat depends on a natural pacemaker, a small cluster of cells its about the size of a peppercorn, Marban says that generates electrical activity. Called the sinoatrial node, it acts like a metronome to keep the heart pulsing at 60 to 100 beats a minute or so, more when youre active. If that node quits working correctly, hooking the heart to an electronic pacemaker works very well for most people.

But about 2 percent of recipients develop an infection that requires the pacemaker to be removed for weeks until antibiotics wipe out the germs, Marban said. And some fetuses are at risk of stillbirth when their heartbeat falters, a condition called congenital heart block.

For over a decade, teams of researchers have worked to create a biological alternative that might help those kinds of patients, trying such approaches as using stem cells to spur the growth of a new sinoatrial node.

Marbans newest attempt uses gene therapy to reprogram a small number of existing heart muscle cells so that they start looking and acting like natural pacemaker cells instead.

Because pigs hearts are so similar to human hearts, Marbans team studied the approach in 12 laboratory pigs with a defective heart rhythm.

They used a gene named TBX18 that plays a role in the embryonic development of the sinoatrial node. Working through a vein, they injected the gene into some of the pigs hearts in a spot that doesnt normally initiate heartbeats and tracked them for two weeks.

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Scientists creating a biological pacemaker

Freeport, Bahamas (PRWEB) July 15, 2014

Okyanos Heart Institute, a leader in cardiac adult stem cell therapy, has selected Perkins Healthcare Technologies to provide video integration solutions for its new state-of-the-art cardiac catheterization lab. The video integration system is paired with Phillips equipment, creating a top-grade comprehensive solution for the cath lab by providing the ability to view high definition clinical cardiac procedures video information on a large screen collaged layout 8-megapixel display. Built to US surgical standards, the lab equipment is being installed over the next few weeks, bringing the highest standard of care and most advanced technology to cardiac care.

Okyanos Heart Institute utilizes adult stem cells derived from ones own adipose (fat) tissue, placing them in the heart to help it repair damaged or diseased tissue. This is done using a minimally invasive catheterization procedure, as demonstrated in multiple rigorous clinical trials from around the world.

Okyanos Chief Medical Officer Howard T. Walpole, Jr., M.D., M.B.A., F.A.C.C., F.A.C.A.I. noted, The most important functions of the video integration system are to provide high quality images with the right projections of the image. When you visualize a heart, you need to be able to get a complex angle to see the back side of the heart. This enables the cardiologist to deliver the stem cells where they are most needed. The size of the image detector is smaller and the more flexible positioner makes it easier to pivot around the patients body to obtain those difficult views.

Perkins Healthcare Technologies has been providing clinical video integration solutions for over 25 years and looks forward to bringing its expertise to Okyanos Heart Institute. We are very excited to have our state-of-the-art video integration system included as a part of this innovative solution for cardiac care. Our video integration system provides Okyanos a flexible solution to meet its staff needs, said Steve Plaugher, COO of Perkins Healthcare Technologies. Instead of having to assimilate patient data from multiple sources and locations, the staff can now access and view this information in their respective work area in an instant.

The combination of Okyanos adult stem cell treatments and Perkins state-of-the-art video integration solutions are designed to enhance patient care, improve the quality of life and deliver an exceptional patient experience.

To learn more about Okyanos and cardiac stem cell therapy, take a few minutes to view this video or visit http://www.Okyanos.com.

To learn more about Perkins and its clinical video integration and control technology, visit http://www.PerkinsHealthcareTechnologies.com for information on Perkins Solutions.

About Okyanos Heart Institute: (Oh key AH nos) Based in Freeport, Grand Bahama, Okyanos Heart Institutes mission is to bring a new standard of care and a better quality of life to patients with coronary artery disease using cardiac stem cell therapy. Okyanos adheres to U.S. surgical center standards and is led by CEO Matt Feshbach and Chief Medical Officer Howard T. Walpole Jr., M.D., M.B.A., F.A.C.C., F.A.C.A.I. Okyanos Treatment utilizes a unique blend of stem and regenerative cells derived from ones own adipose (fat) tissue. The cells, when placed into the heart via a minimally-invasive catheterization, stimulate the growth of new blood vessels, a process known as angiogenesis. Angiogenesis facilitates blood flow in the heart and supports intake and use of oxygen (as demonstrated in rigorous clinical trials such as the PRECISE trial). The literary name Okyanos, the Greek god of rivers, symbolizes restoration of blood flow.

About Perkins Healthcare Technologies: Perkins Healthcare Technologies has designed, developed, manufactured and distributed clinical video integration solutions for more than 25 years. Perkins vendor neutral video integration solutions work seamlessly with new or existing imaging, surgical, or hybrid procedure suites; complementing the functionality, improving workflow, and providing critical patient information to the stakeholder where and when they need it.

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Okyanos & Perkins Partner for Cardiac Stem Cell Therapy Innovation

What Is Cardiac Cell Therapy?

In its simplest form, cardiac cell therapy is simply the use of stem cells to regenerate new heart tissue. Stem cells were originally used to grow your heart before you were born. Stem cells capable of growing new heart tissue reside in all of us. Through the use of trial-tested technologies, your own stem cells can be used to grow and repair your cardiac tissue.

The most difficult aspect of this therapy was developing a way to isolate your stem cells and put them to use to grow new heart tissue. And thanks to years of research, this process has been developed and tested in clinical trials with favorable results.

What Is The Procedure?

There is a wide variety of methods of placing stem cells in the body or near the organ they are intended to help. One procedure tested under trial is through the use of catheters (a specialized tube) and is being implemented in a new state-of-the-art clinic by a U.S. licensed veteran cardiologist. This process requires only a local anesthetic and minimal recovery time (hours vs days). And your own cardiologist is consulted closely to make sure you are a good candidate for the procedure and to monitor your improvements when you return home.

If you'd like our recommendations on qualified cardiac stem cell clinics, please don't hesitate to contact us at info@heartcell.org. We'd be happy to connect you to a clinic, doctor or stem cell patient for you to explore your options further.

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What Is Stem Cell Therapy | Stem Cell For Heart | Cardiac ...

Council of Scientific and Industrial Research (CSIR) Centre for Cellular and Molecular Biology (CCMB) Director, Dr Ch. Mohan Rao today claimed that the heart disease can be treated without surgeries in future.

Addressing after inaugurating the 19th Annual conference of the Cardiological Society of India (CSI-AP Chapter) here, Dr Rao said that in the recent research in molecular biology found that 'heart' too have 'stem cells' which will help to automatically build the damaged part of any organ.

He said that further research also going with collaboration of other foreign institutions on how to bring the 'stem cells' out and repair.

Once the solution is found, the cardiac diseases can be healed with surgery, Dr Rao said.

''This development will make the stem cell based therapy replace the chemical based therapy in Cardiology,'' he added.

Irregular eating habits and busy lifestyle are among the major causes of the cordial illness, he said and advised to the youth to follow healthy lifestyle to avoid heart related problems.

While talking about the latest research, he said, ''To reduce the deaths due to cardiac illness the CCMB is working along with the scientists from Japan, the US and Italy to develop the an easier way to treatment.''

Dr Rao also given a clarion call to Cardiology experts to come forward for joint research on cardiac problems.

Encouraging the research in Cardiology, Dr Rao also invited the young medicos to visit the CCMB campus and work with the institute.

Discussing various kinds of heart diseases, he said, ''Dilated Cardiomyopathy is one of the most common heart disease among the children.''

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Cardiac diseases to be treated without surgeries soon as stem cells found

By Ben Spencer

Published: 09:48 EST, 4 July 2014 | Updated: 10:20 EST, 4 July 2014

Fat removed from a heart attack patient during cardiac surgery could be re-injected into their chest to lower the risk of repeat problems, research suggests.

Scientists think that stem cells in fatty tissue could be extracted and inserted directly into the heart, reducing the chance of future attacks.

The stem cells - blank cells capable of acting as a repair kit for the body by replacing worn-out tissue - can improve the functioning of the heart and strengthen crucial arteries and veins, the researchers found.

Usually most of the fat that is found during open heart surgery is removed and then discarded.

Scientists believe fat removed from a heart attack patient during cardiac surgery could be re-injected into their chest to lower the risk of repeat problems. Stock image

But the new study suggests that the fat could be retained and the useful stem cells isolated and injected back into the heart - all while the patient is still on the operating table.

Canadian cardiologist Dr Ganghong Tian, who will present his findings at a European Society of Cardiology conference in Barcelona tomorrow (Sunday), said: During cardiac surgery fat tissue may need to be removed from patients to expose the heart.

We were intrigued to find out whether this mediastinal fat, which would otherwise be discarded, contained stem cells that could be injected back into the heart before closing the chest.

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Fat cells removed from heart attack patients could be re-injected into their chest to help repair the organ ...

By Jim Kasuba The News-Herald Twitter: @JKasuba

Elizabeth Disney (left) turned out to be a suitable blood stem donor for her sister, Brittany, who is afflicted with Burkitt lymphoma, considered to be an extremely rare disease for a young woman of only 23. Photo courtesy of Donna Smith

RIVERVIEW Battling a rare cancer has been a rough road for Brittany Disney, but the worst may be behind her.

The good news is that a suitable stem cell donor has been found and the transplant surgery went well. The not-so-good news is that theres a long recovery period and shes still in a lot of pain.

Donna Smith, a close friend of the family, said the young woman underwent stem cell replacement on June 6.

There was a one in four chance that a sibling would be a match, Smith said. (Her sister) Elizabeth had five out of six markers to be a stem cell donor for her.

Disney, 23, was diagnosed late last year with stage four Burkitt lymphoma, a form of non-Hodgkins lymphoma in which cancer starts in immune cells called B-cells. Recognized as the fastest growing human tumor, Burkitt lymphoma is associated with impaired immunity and is rapidly fatal if left untreated.

Burkitt lymphoma is so rare in young adult women that the Henry Ford Health System wrote about the case in a medical journal, said one of Disneys college friends.

In November, friends and family sponsored a spaghetti dinner fundraiser to assist the family with medical bills and expenses, but things continued to look bleak, as a stem cell transplant appeared to be the only answer to treating the condition.

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Riverview woman recovers from stem cell transplant; family seeking notes of encouragement

WASHINGTON Scientists have come up with a bright idea to repair teeth And they say their concept using laser light to entice the bodys own stem cells into action may offer enormous promise beyond just dentistry in the field of regenerative medicine.

The researchers used a low-power laser to coax dental stem cells to form dentin, the hard tissue that makes up most of a tooth, in studies involving rats and mice and using human cells in a laboratory. The study appeared in the journal Science Translational Medicine.

They did not regenerate an entire tooth in part because the enamel part was too tricky. But merely getting dentin to grow could help alleviate the need for root canal treatment, the painful procedure to remove dead or dying nerve tissue and bacteria from inside a tooth, they said.

Im a dentist by training. So I think it has potential for great impact in clinical dentistry, researcher Praveen Arany of the National Institute of Dental and Craniofacial Research, part of the U.S. National Institutes of Health, said Friday. Arany expressed hope that human clinical trials could get approval in the near future.

Our treatment modality does not introduce anything new to the body, and lasers are routinely used in medicine and dentistry, so the barriers to clinical translation are low, added Harvard University bioengineering professor David Mooney. It would be a substantial advance in the field if we can regenerate teeth rather than replace them.

Using existing regeneration methods, scientists must take stem cells from the body, manipulate them in a lab and put them back into the body. This new technique stimulates action in stem cells that are already in place.

Scientists had long noticed that low-level laser therapy can stimulate biological processes like rejuvenating skin and stimulating hair growth but were not sure of the mechanisms. Arany noted the importance of finding the right laser dose, saying: Too low doesnt work and too high causes damage.

The researchers found that laser exposure of the tooth at the right intensity prompted certain oxygen-containing molecules to activate a cell protein that is known to be involved in development, healing and immune functions.

This protein in turn directed stem cells present in tooth pulp to turn into dentin. Stem cells are master cells that are capable of transforming into various types of tissues in the body.

The question is whether using this method could get other stem cells to become useful in laser-induced regenerative medicine. Arany said he is hopeful it can be used in healing wounds, regenerating cardiac tissue, dealing with inflammation issues and fixing bone damage, among other applications.

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Meeri N. Kim, For The Inquirer Last updated: Sunday, May 18, 2014, 8:51 AM Posted: Saturday, May 17, 2014, 3:55 PM

Imagine a document 25,000 words long - about 100 pages, double-spaced - with one small error. Within the text of our genetic code, a single change like this can lead to a life-threatening disease such as sickle-cell anemia or cystic fibrosis.

Most of these single-gene disorders have no cure. But using a new technique, doctors may one day be able to correct the genetic typo by replacing a harmful mutation in the genome with healthy DNA.

Introducing CRISPR (clustered regularly interspaced short palindromic repeats), a genetic editing tool that can cut and paste parts of any living animal's DNA. Although in its infancy, the system is generating excitement among scientists for its ease of use, accessibility, and vast potential.

The CRISPR system enables researchers to make a small chain of custom-made molecules, called a guide RNA, and a Cas9 enzyme. The guide RNA is like the search function of a word processor, running along the length of the genome until it finds a match; then, the scissorslike Cas9 cuts the DNA. CRISPR can be used to delete, insert, or replace genes.

"We didn't used to think that we had the tools to correct mutation in humans," said Penn Medicine cardiologist Jonathan Epstein, who just began using the technique in his lab. "The advantage of CRISPR is that we can."

For instance, sickle-cell anemia is caused by a mutation in chromosome 11 that causes red blood cells to be crescent-shaped, sticky, and stiff. They end up stuck in the blood vessels, keeping enough oxygen from reaching the body. While the disease can be treated with bone marrow or stem cell transplants, most patients cannot find well-matched donors.

Here's where CRISPR can help. Biomedical engineer Gang Bao of the Georgia Institute of Technology aims to use the system to repair the DNA of a patient's own stem cells, so no outside donor would be needed. The stem cells would be extracted from the patient's bone marrow, their mutations replaced with normal DNA, and inserted back in. The hope is that the gene-corrected stem cells would then begin making normal red blood cells.

The treatment works in mice, and Bao foresees human trials within a few years.

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Genetic 'typo' corrector

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Washington, May 12 : Researchers have merged stem cell and 'organ-on-a-chip' technologies to grow, for the first time, functioning human heart tissue carrying an inherited cardiovascular disease.

The research appears to be a big step forward for personalized medicine, as it is working proof that a chunk of tissue containing a patient's specific genetic disorder can be replicated in the laboratory.

Using their interdisciplinary approach, the investigators modeled the cardiovascular disease Barth syndrome, a rare X-linked cardiac disorder caused by mutation of a single gene called Tafazzin, or TAZ. The disorder, which is currently untreatable, primarily appears in boys, and is associated with a number of symptoms affecting heart and skeletal muscle function.

The researchers took skin cells from two Barth syndrome patients, and manipulated the cells to become stem cells that carried these patients' TAZ mutations. Instead of using the stem cells to generate single heart cells in a dish, the cells were grown on chips lined with human extracellular matrix proteins that mimic their natural environment, tricking the cells into joining together as they would if they were forming a diseased human heart.

The engineered diseased tissue contracted very weakly, as would the heart muscle seen in Barth syndrome patients.

The investigators then used genome editinga technique pioneered by Harvard collaborator George Church, PhDto mutate TAZ in normal cells, confirming that this mutation is sufficient to cause weak contraction in the engineered tissue.

On the other hand, delivering the TAZ gene product to diseased tissue in the laboratory corrected the contractile defect, creating the first tissue-based model of correction of a genetic heart disease.

Furthermore, the scientists discovered that the TAZ mutation works in such a way to disrupt the normal activity of mitochondria, often called the power plants of the cell for their role in making energy.

However, the mutation didn't seem to affect overall energy supply of the cells. In what could be a newly identified function for mitochondria, the researchers describe a direct link between mitochondrial function and a heart cell's ability to build itself in a way that allows it to contract.

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Stem cell and 'organ-on-a-chip' merger step forward for personalized meds

PUBLIC RELEASE DATE:

11-May-2014

Contact: Joseph Caputo joseph_caputo@harvard.edu 617-496-1491 Harvard University

Cambridge, MAHarvard scientists have merged stem cell and 'organ-on-a-chip' technologies to grow, for the first time, functioning human heart tissue carrying an inherited cardiovascular disease. The research appears to be a big step forward for personalized medicine, as it is working proof that a chunk of tissue containing a patient's specific genetic disorder can be replicated in the laboratory.

The work, published in Nature Medicine, is the result of a collaborative effort bringing together scientists from the Harvard Stem Cell Institute, the Wyss Institute for Biologically Inspired Engineering, Boston Children's Hospital, the Harvard School of Engineering and Applied Sciences, and Harvard Medical School. It combines the 'organs-on-chips' expertise of Kevin Kit Parker, PhD, and stem cell and clinical insights by William Pu, MD.

Using their interdisciplinary approach, the investigators modeled the cardiovascular disease Barth syndrome, a rare X-linked cardiac disorder caused by mutation of a single gene called Tafazzin, or TAZ. The disorder, which is currently untreatable, primarily appears in boys, and is associated with a number of symptoms affecting heart and skeletal muscle function.

The researchers took skin cells from two Barth syndrome patients, and manipulated the cells to become stem cells that carried these patients' TAZ mutations. Instead of using the stem cells to generate single heart cells in a dish, the cells were grown on chips lined with human extracellular matrix proteins that mimic their natural environment, tricking the cells into joining together as they would if they were forming a diseased human heart. The engineered diseased tissue contracted very weakly, as would the heart muscle seen in Barth syndrome patients.

The investigators then used genome editinga technique pioneered by Harvard collaborator George Church, PhDto mutate TAZ in normal cells, confirming that this mutation is sufficient to cause weak contraction in the engineered tissue. On the other hand, delivering the TAZ gene product to diseased tissue in the laboratory corrected the contractile defect, creating the first tissue-based model of correction of a genetic heart disease.

"You don't really understand the meaning of a single cell's genetic mutation until you build a huge chunk of organ and see how it functions or doesn't function," said Parker, who has spent over a decade working on 'organs-on-chips' technology. "In the case of the cells grown out of patients with Barth syndrome, we saw much weaker contractions and irregular tissue assembly. Being able to model the disease from a single cell all the way up to heart tissue, I think that's a big advance."

Furthermore, the scientists discovered that the TAZ mutation works in such a way to disrupt the normal activity of mitochondria, often called the power plants of the cell for their role in making energy. However, the mutation didn't seem to affect overall energy supply of the cells. In what could be a newly identified function for mitochondria, the researchers describe a direct link between mitochondrial function and a heart cell's ability to build itself in a way that allows it to contract.

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Patient stem cells used to make 'heart disease-on-a-chip'

San Diego, CA (PRWEB) May 08, 2014

Xcelthera Inc, a major innovator in the stem cell research market and one of the first U.S. companies formed for clinical applications of human embryonic stem cell (human ES cell) therapeutic utility for unmet medical needs, and its joint research partner San Diego Regenerative Medicine Institute announced today that the U.S. Patent and Trademark Office (USPTO) has granted Patent No. 8,716,017 entitled, Technologies, Methods, and Products of Small Molecule-Directed Tissue and Organ Regeneration from Human Pluripotent Stem Cells. This newly-issued patent is the first among a portfolio of intellectual property of Xcelthera Inc covering PluriXcel human stem cell technology platform for large-scale production of high quality clinical-grade pluripotent human ES cell lines and their functional human neuronal and heart muscle cell therapy products.

Neurodegenerative and heart diseases are major health problems and cost the worldwide healthcare system more than $500 billion annually. The limited capacity of these two cell systems -- neurons and cardiomyocytes -- for self-repair makes them suitable for stem cell-based neuronal and heart therapies. Nevertheless, to date, the existing markets lack a clinically-suitable human neuronal cell source or cardiomyocyte source with adequate regenerative potential, which has been the major setback in developing safe and effective cell-based therapies for neurodegenerative and heart diseases. Xcelthera proprietary PluriXcel technology allows efficient derivation of clinical-grade human ES cell lines and direct conversion of such pluripotent human ES cells by small molecule induction into a large commercial scale of high quality human neuronal or heart muscle cells, which constitutes clinically representative progress in both human neuronal and cardiac therapeutic products for treating neurodegenerative and heart diseases.

PluriXcel technology of Xcelthera Inc is milestone advancement in stem cell research, offering currently the only available human cell therapy products with the pharmacological capacity to regenerate human neurons and contractile heart muscles that allow restitution of function of the central nervous system (CNS) and heart in the clinic. Through technology license agreement with San Diego Regenerative Medicine Institute, Xcelthera Inc has become the first in the world to hold the proprietary breakthrough technology for large-scale production of high quality clinical-grade pluripotent human ES cell lines and their functional human neuronal and heart cell therapy products for commercial and therapeutic uses.

As neurodegenerative and heart diseases incur exorbitant costs on the healthcare system worldwide, there is a strong focus on providing newer and more efficient solutions for these therapeutic needs. Millions of people are pinning their hopes on stem cell research. PluriXcel technology platform of Xcelthera Inc is incomparable, providing life scientists and clinicians with novel and effective resources to address major health concerns. Such breakthrough stem cell technology has presented human ES cell therapy derivatives as a powerful pharmacologic agent of cellular entity for a wide range of incurable or hitherto untreatable neurodegenerative and heart diseases. Introduction of medical innovations and new business opportunities based on PluriXcel technology will shape the future of medicine by providing pluripotent human ES cell-based technology for human tissue and function restoration, and bringing new therapeutics into the market.

About Xcelthera Inc.

Xcelthera INC (http://www.xcelthera.com) is a new biopharmaceutical company moving towards clinical development stage of novel and most advanced stem cell therapy for a wide range of neurological and cardiovascular diseases with leading technology and ground-breaking medical innovation in cell-based regenerative medicine. The Company was recently incorporated in the state of California to commercialize the technologies and products developed, in part, with supports by government grants to the founder, by San Diego Regenerative Medicine Institute (SDRMI), an non-profit 501C3 tax-exempt status independent biomedical research institute that is interested in licensing its PATENT RIGHTS in a manner that will benefit the public by facilitating the distribution of useful products and the utilization of new processes, but is without capacity to commercially develop, manufacture, and distribute any such products or processes. Xcelthera is a major innovator in the stem cell research market and one of the first companies formed for clinical applications of human embryonic stem cell (human ES cell) therapeutic utility for unmet medical needs. The Company is the first to hold the proprietary breakthrough technology for large-scale production of high quality clinical-grade pluripotent human ES cell lines and their functional human neuronal and heart muscle cell therapy products for commercial and therapeutic uses. The Company owns or has exclusive rights in a portfolio of intellectual property or license rights related to its novel PluriXcel human stem cell technology platforms and Xcel prototypes of human stem cell therapy products. The inception of Xcelthera is driven by the urgent need for clinical translation of human ES cell research discoveries and innovations to address unmet medical challenges in major health problems. Xcelthera breakthrough developments in human ES cell research dramatically increase the overall turnover of investments in biomedical sciences to optimal treatment options for a wide range of human diseases. The overall strategy of the Company is to use cutting-edge human stem cell technology to develop clinical-grade functional human neural and cardiac cell therapy products from pluripotent human ES cells as cellular medicine or cellular drugs to provide the next generation of cell-based therapeutic solutions for unmet medical needs in world-wide major health problems. The Company is currently offering Series A Convertible Preferred Stock to accredited investors through equity crowdfunding to raise fund for its pre-IPO business operation and filing confidential IPO as an emerging growth company according to the JOBS Act to create a public market for its common stock and to facilitate its future access to the public equity market and growth of the Company.

Visit Xcelthera Inc. at http://www.xcelthera.com.

For more information or investment opportunity about Xcelthera series A round, please contact: Xuejun H Parsons, PhD, Chief Executive Officer Xcelthera Inc. http://www.xcelthera.com 888-706-5396 or 858-243-2046 investors(at)xcelthera.com or parsons(at)xcelthera.com

About San Diego Regenerative Medicine Institute

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Xcelthera Inc Secures First U.S. Patent for Large-Scale Production of High Quality Human Embryonic Stem Cells and ...

The entire heart muscle in young children may hold untapped potential for regeneration, new research suggests.

For decades, scientists believed that after a child's first few days of life, cardiac muscle cells did not divide. Instead, the assumption was that the heart could only grow by having the muscle cells become larger.

Cracks were already appearing in that theory. But new findings in mice, scheduled for publication in Cell, provide a dramatic counterexample -- with implications for the treatment of congenital heart disorders in humans.

Researchers at Emory University School of Medicine have discovered that in young mice 15 days old, cardiac muscle cells undergo a precisely timed spurt of cell division lasting around a day. The total number of cardiac muscle cells increases by about 40 percent during this time, when the rest of the body is growing rapidly. [A 15-day-old mouse is roughly comparable to a child in kindergarten; puberty occurs at day 30-35 in mice.]

The burst of cell division is driven by a surge of thyroid hormone, the researchers found. This suggests that thyroid hormone could aid in the treatment of children with congenital heart defects. In fact, doctors have already tested thyroid hormone supplementation in this setting on a small scale.

The findings also have broader hints for researchers developing therapies for the heart. Activating the regenerative potential of the muscle cells themselves is a strategy that is an alternative to focusing on the heart's stem cells, says senior author Ahsan Husain, PhD, professor of medicine (cardiology) at Emory University School of Medicine.

"It's not as dramatic as in fish or amphibians, but we can show that in young mice, the entire heart is capable of regeneration, not just the stem cells," he says.

The Emory researchers collaborated with Robert Graham, MD, executive director of the Victor Change Cardiac Research Institute in Australia. Co-first authors of the paper are Nawazish Naqvi, PhD, assistant professor of medicine at Emory and Ming Li, PhD, at Victor Chang.

The researchers tested how much mice, at the age of day 15, can recover from the blockage of a coronary artery. Consistent with previous research, newborn (day 2) mice showed a high level of repair after such an injury, but at day 21, they did not. The day 15 mice recovered more than the day 21 mice, indicating that some repair is still possible at day 15.

The discovery came unexpectedly during the course of Naqvi and Husain's investigation of the role of the gene c-kit -- an important marker for stem cells -- in cardiac muscle growth. Adult mice with a disabled c-kit gene in the heart have more cardiac muscle cells. The researchers wanted to know: when does this difference appear?

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Spurt of heart muscle cell division seen in mice well after birth: Implications for repair of congenital heart defects

Cleveland, Ohio (PRWEB) May 08, 2014

ChanTest announces a new Heart-in-a-Dish in vitro cardiac safety assessment tool to support this critical component of the drug development process for biopharmaceutical companies.

ChanTest has developed this breakthrough in safety assessment by taking advantage of the pairing of two recent technologies stem cell-derived human cardiomyocytes, and Multi-Electrode Array (MEA) recording -- to open a new avenue toward simplifying the cardiac risk assessment process.

Adult human cells can be reprogrammed to simulate induced pluripotent stem cells (iPSC). These iPSCs can be differentiated into heart cells (myocytes) and can be grown in culture dishes to form a spontaneously beating layer of myocytes that display the electrical properties similar to an intact human heart.

With the application of multiple electrodes, this Heart-in-a-Dish will generate a signal that closely resembles an EKG which has been recorded in the doctors office. Now imagine a miniature version of this system. By miniaturizing the recording system in the form of multi-well MEA assay plates, this enables simultaneous, parallel measurements from this Heart-in-a-Dish in order to detect potentially dangerous arrhythmias before human clinical trials.

This powerful system rapidly tests the safety of multiple compounds, at multiple concentrations and time points, explained Chris Mathes, Ph.D., Chief Commercial Officer at ChanTest. And the new offering keeps ChanTest on the cutting edge of providing services tuned to the current regulatory environment for drug discovery.

ChanTest has developed this Heart-in-a-Dish multi-well MEA assay that enables the recording of EKG-like signals to identify side effects from drugs. This new tool can allow biopharmaceutical companies and other drug discovery teams to screen compounds in an informative and robust manner, prior to implementing in vivo animal or human studies.

About ChanTest The Ion Channel Expert ChanTests mission is to serve the drug discovery and development needs of customers worldwide. Since its start in 1998, the Contract Research Organization has tested compounds for more than 300 global pharmaceutical and biotechnology companies. ChanTest also partners with these companies to accelerate the drug development process for the release of better, safer drugs. ChanTest offers integrated ion channel and GPCR services (GLP and non-GLP) and reagents. The companys library of validated ion channel cell lines, and nonclinical cardiac risk assessment service portfolio, is the most comprehensive commercial library available today.

Because of ChanTests influential role in the cardiac safety field, along with the companys uncompromising commitment to quality, an independent survey has named ChanTest the most trusted and most used fee-for-service provider since 2006. ChanTest is based in Cleveland, Ohio.

Visit http://www.chantest.com to learn more about ChanTest.

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ChanTest Launches new Heart-in-a-Dish Cardiac Safety Assessment Tool

Karen Weintraub, Special for USA TODAY 2:49 p.m. EDT April 30, 2014

A study in "Nature" said researchers showed that they could repair damaged hearts by injecting versatile stem cells into macaque monkeys, like this one in Thailand.(Photo: Apichart Weerawong, AP)

Two new studies out today show both the incredible promise of stem cell research and its current limitations.

In one, published in the journal Nature, researchers showed that they could repair damaged hearts by injecting these versatile stem cells into macaque monkeys. Heart disease is the leading cause of death, and if the same process can work in people, it could benefit hundreds of thousands a year.

In the other study, published in Science Translational Medicine, five men were able to regrow leg muscles destroyed by accidents or military service. The researchers, from the University of Pittsburgh, inserted into the men's muscles a "scaffold" of muscle tissue from a pig. Through aggressive physical therapy right after the surgery, the men's own stem cells were encouraged to populate the scaffold and substantially rebuild their leg muscles.

Nothing had been able to help these men before, including multiple surgeries and years of physical therapy, said Stephen Badylak, the study's senior author.

"Frankly, most of these patients have been through hell," he said at a Tuesday news conference.

David Scadden, a physician and co-director of the Harvard Stem Cell Institute, said he was impressed with the rigor and promise of both studies.

It's long been a goal of stem cell research to figure out how to help the body regrow damaged tissue, he said, and both studies mark a significant step toward that goal.

Both studies also showed that stem cells respond to cells around them, he said, with the heart cells learning to beat in sync with the monkey cells and the muscle cells learning to go where they were needed. "Once the cells get to a certain point, it appears they can then follow the lead of their neighbors," he said.

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Stem cells used to repair animal hearts and human muscle

Chaiwat Subprasom/Reuters/Corbis

Many companies around the world offer stem-cell treatments to patients with heart disease.

An analysis of clinical studies that use adult stem cells to treat heart disease has raised questions about the value of a therapy that many consider inappropriately hyped.

Early-phase clinical trials have reported that adult stem cells are effective in treating heart attack and heart failure, and many companies are moving quickly to tap into this potentially lucrative market. But a comprehensive study that looked at discrepancies in trials investigating treatments that use patients own stem cells, published this week in the journal BMJ (ref. 1), finds that only trials containing flaws, such as design or reporting errors, showed positive outcomes. Error-free trials showed no benefit at all.

The publication comes as two major clinical trials designed to conclusively test the treatments efficacy are recruiting thousands of patients.

The BMJ paper is concerning because the therapeutic approach is already being commercialized, argues stem-cell researcher Paolo Bianco at the Sapienza University of Rome. Premature trials can create unrealistic hopes for patients, and divert resources from the necessary basic studies we need to design more appropriate treatments.

Therapies that use adult stem cells typically involve collecting mesenchymal stem cells from bone marrow taken from the patients hip bone. The cells are then injected back into the patient, to help repair damaged tissue. Original claims that they differentiated into replacement cells have been rejected2, and many clinicians now believe that the cells act by releasing molecules that cause inflammation, with an attendant growth of oxygen-delivering small blood vessels, in the damaged tissue.

The approach has spawned international commercialization of various forms of the therapy, with companies offering treatments for disorders ranging from Parkinsons disease to heart failure. But the effectiveness of such therapies remains unproven.

I have a lot of hope for regenerative medicine, but our results make me fearful.

The BMJ study, led by cardiologist Darrel Francis at Imperial College London, examined 133 reports of 49 randomized clinical trials published up to April last year, involving the treatment of patients who had had a heart attack or heart failure. It included all accessible randomized studies, and looked for discrepancies in design, methodology and reporting of results.

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Doubts over heart stem-cell therapy : Nature News & Comment

Thanks to a study with monkeys, the idea of using stem cells to accomplish heart repair on a clinical scale seems more realistic. Stem cells have shown promise in small-animal models, that is, in mice and rats. Still, it was unclear whether human embryonic-stem-cell-derived cardiomyocytes (hESC-CMs) could be produced in adequate numbers, and cryopreserved with sufficient viability, to even approach human application.

In a step up from small-animal models, scientists at the University of Washington used a monkey model of myocardial infarction to test how well hESC-CMs could replace damaged tissue with new heart cells and restore failing hearts to normal function. The scientists injected 1 billion heart muscle cells derived from hESC-CMs into the infarcted muscle of pigtail macaques (Macaca nemestrina). This was 10 times more of these types of cells than researchers have ever been able to generate before.

The researchers found that over subsequent weeks, the stem-cell derived heart muscle cells infiltrated into the damaged heart tissue, then matured, assembled into muscle fibers, and began to beat in synchrony with the macaque heart cells. After three months, the cells appeared to have fully integrated into the macaque heart muscle.

Before this study, it was not known if it is possible to produce sufficient numbers of these cells and successfully use them to remuscularize damaged hearts in a large animal whose heart size and physiology is similar to that of the human heart, said Charles Murry, M.D., Ph.D., professor of pathology and bioengineering, who led the research team that conducted the experiment.

The research team published its results April 30 in Nature, in an article entitled Human embryonic-stem-cell-derived cardiomyocytes regenerate non-human primate hearts. In this article, the authors indicated that their work demonstrated that hESCs can be grown, differentiated into cardiomyocytes, and cryopreserved at a scale sufficient to treat a large-animal model of myocardial infarction.

With further refinements in manufacturing, the scale up to trials in human patients seems feasible, the researchers wrote. Large-animal models are important forerunners to human trials, because they impart real-world rigor to issues such as cell production, delivery, and end-point analyses, while permitting mechanistic studies not possible in patients.

On average, the transplanted stem cells regenerated 40% of the damaged heart tissue. Ultrasound studies of the macaques hearts showed that the ejection fraction, an indication of the hearts ability to pump blood, improved in some of the treated animals but not all. The researchers also found that arteries and veins from the macaques hearts grew into the new heart tissue, the first time it has been shown that blood vessels from a host animal will grow into and nurture a large stem-cell derived graft of this type.

The most concerning complications were arrhythmias that occurred in the weeks after the macaques received the stem cell injections, Dr. Murry said. None of the macaques, however, appeared to have symptoms during these episodes, which disappeared after two to three weeks as the stem cells matured and became more electrically stable.

The researchers also cautioned that in their macaque model, the infarcts they had induced were smaller than the clinically severe infarcts that might benefit most from hESC-CM therapy. The researchers added that larger infarcts, in human hearts, might manifest more arrhythmias.

Because ventricular arrhythmias can be life threatening, they need to be understood mechanistically and managed en route to safe clinical translation, the authors noted. Nevertheless, the extent of remuscularization and electromechanical coupling seen here encourages further development of human cardiomyocyte transplantation as a clinical therapy for heart failure.

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GEN | News Highlights:Human Stem Cells Repair Heart Damage ...

Image Caption: This image shows an implanted graft of cardiac cells derived from human stem cells (green) meshed and beat with primates' heart cells (red). Credit: Murry Lab/University of Washington

April Flowers for redOrbit.com Your Universe Online

When a heart attack occurs, the oxygen-rich blood that normally flows through is interrupted by the blockage in an artery. The longer that blood flow is restricted or cut off, the more tissue and muscle in the area dies or is scarred. The eventual result can be heart failure, especially if one heart attack is followed by another.

In 2013, Harvard Health Publications released a report taking a look at the state of stem cell research into the problem of regenerating heart tissue, and the results were mixed.

A new study from the University of Washington, however, reveals improvement in those results. The findings, published online in Nature, demonstrate that damaged heart muscles in monkeys have been restored by the use of heart cells created from human embryonic stem cells. The exciting implication, according to the research team, is that their approach should also be feasible in humans.

Before this study, it was not known if it is possible to produce sufficient numbers of these cells and successfully use them to remuscularize damaged hearts in a large animal whose heart size and physiology is similar to that of the human heart, said Dr. Charles Murry, UW professor of pathology and bioengineering and director of the UW Center for Cardiovascular Biology, in a recent statement.

Murray, who collaborated with Dr. Michael Laflamme and other colleagues at the UW Institute for Stem Cell & Regenerative Medicine, predicts clinical trials with humans within the next four years.

[ Watch the Video: Regenerating Heart Muscle Damage With Stem Cell Therapy ]

For the study, the researchers induced controlled myocardial infarctions, a type of heart attack, in anesthetized pigtail macaques, by blocking the coronary artery for 90 minutes. This is the accepted practice for studying myocardial infarction in primates.

Coronary artery disease is the primary culprit in myocardial infarctions in humans. The infarcted heart muscle, damaged by a lack of oxygen, does not grow back, leaving the heart less able to pump blood. This often leads to heart failure, the leading cause of cardiovascular death. Researchers hope to use new heart cells created from stem cells in order to restore normal function to the failing heart.

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Heart Muscles Repaired After Heart Attack Using Human Embryonic Stem Cells

It shows for the first time that we can do regeneration at a scale that the world has never seen before, said Dr Charles Murry, professor of pathology and bioengineering, at the University of Washington.

"Before this study, it was not known if it is possible to produce sufficient numbers of these cells and use them to re-muscularise damaged hearts in a large animal whose heart size and physiology is similar to that of the human heart."

Weve shown that (stem cells) will survive and they will organise to form new heart muscle and they will connect with the surrounding cardiac muscle cells and beat in synchrony.

The green area shows the regenerated heart muscle

Currently heart muscle cannot be repaired and people with severe heart failure must wait for a heart transplant.

In the study the team induced heart attacks, in anesthetised macaque monkeys.

Over the course of two weeks they injected one billion heart muscle cells derived from human embryonic stem cells.

The researchers found that the stem cells infiltrated into the damaged heart tissue, matured, and knitted into muscle fibers, before beginning to beat in rhythm with the macaque heart cells.

After three months, the cells had fully integrated into the heart. On average the transplanted stem cells regenerated 40 percent of the damaged heart tissue and improve the ability of the heart to pump blood.

Although the study has been carried out on macaque monkeys, the researchers at the University of Washington said "the approach should be feasible in humans".

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Stem cell injections may take place of heart swaps

An implanted graft of cardiac cells derived from human stem cells (green) meshed with a monkey's own heart cells (red). Picture: Murry Lab/University of Washington/PA

Stem cell heart repair treatments could be tested on human patients within four years following a ground-breaking study of monkeys.

Scientists successfully restored damaged cardiac muscle in macaque monkeys suffering the after-effects of experimentally induced heart attacks, paving the way to clinical trials.

Researchers injected 1bn immature heart muscle cells derived from human embryonic stem cells into each animals heart.

Over several weeks, the new cells developed, assembled into muscle fibres, and began to beat in correct time. On average, 40% of the damaged heart tissue was regenerated.

It is the first time stem cell therapy for damage caused by heart attacks has been shown to work in a primate.

Lead scientist Prof Charles Murry, director of the Centre for Cardiovascular Biology at the University of Washington in Seattle, said: Before this study, it was not known if it is possible to produce sufficient numbers of these cells and successfully use them to remuscularise damaged hearts in a large animal whose heart size and physiology is similar to that of the human heart.

He expects the treatment to be ready for clinical trials in human patients within four years.

Heart attack symptoms were triggered in the monkeys by blocking the coronary artery the main artery supplying the heart with blood for 90 minutes.

In humans, the reduced blood flow caused by narrowing of the arteries has a similar effect. Lack of blood flow to the heart damages the heart muscle by depriving it of oxygen.

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Stem cell breakthrough in treating heart attacks