Stem Cell-Seeded Cardiopatch Could Deliver Results for Damaged Hearts

Durham, NC (PRWEB) March 07, 2012

A new type of stem cell-seeded patch has shown promising results in promoting healing after a heart attack, according to a study released today in the journal STEM CELLS Translational Medicine.

Ischemic heart disease, caused by vessel blockage, is a leading cause of death in many western countries. Studies have shown the potential of stem cells in regenerating heart tissue damaged during an attack. But even as the list of candidate cells for cardiac regeneration has expanded, none has emerged as the obvious choice, possibly because several cell types are needed to regenerate both the hearts muscles and its vascular components.

Aside from the choice of the right cell source for tissue regeneration, the best way to deliver the stem cells is up for debate, too, as intravenous delivery and injections can be inefficient and possibly harmful. While embryonic stem cells have shown great promise for heart repairs due to their ability to differentiate into virtually any cell type, less than 10 percent of injected cells typically survive the engraftment and of that number generally only 2 percent actually colonize the heart.

In order for this type of treatment is to be clinically effective, researchers need to find ways to deliver large numbers of stem cells in a supportive environment that can help cells survive and differentiate.

In the current cardiopatch study, conducted by researchers from the Faculty of Medicine of the Geneva University in collaboration with colleagues at the Ecole Polytechnique Federale de Lausanne (EPFL), cardiac-committed mouse embryonic stem cell (mESC) were committed toward the cardiac fate using a protein growth factor called BMP2 and then embedded into a fibrin hydrogel that is both biocompatible and biodegradable. The cells were loaded with superparamagnetic iron oxide nanoparticles so they could be tracked using magnetic resonance imaging, which also enabled the researchers to more accurately assess regional and global heart function.

The patches were engrafted onto the hearts of laboratory rats that had induced heart attacks. Six weeks later, the hearts of the animals receiving the mESC-seeded patches showed significant improvement over those receiving patches loaded with iron oxide nanoparticles alone. The patches had degraded, the cells had colonized the infarcted tissue and new blood vessels were forming in the vicinity of the transplanted patch. Improvements reached beyond the part of the heart where the patch had been applied to manifest globally.

Marisa Jaconi, PhD, of the Geneva University Department of Pathology and Immunology, and Jeffrey Hubbell, PhD, professor of bioengineering at the EPFL, were leaders on the investigative team. Their findings could make a significant impact on how heart patients are treated in the future. Altogether our data provide evidence that stem-cell based cardiopatches represent a promising therapeutic strategy to achieve efficient cell implantation and improved global and regional cardiac function after myocardial infarction, said Jaconi.

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The full article, Embryonic stem cell-based cardiopatches improve cardiac function in infarcted rats, can be accessed at: http://www.stemcellstm.com/content/early/recent.

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Stem Cell-Seeded Cardiopatch Could Deliver Results for Damaged Hearts

Stem cell repair kit for glaucoma could mean a treatment for the most common cause of blindness

By Fiona Macrae

Last updated at 1:55 AM on 8th March 2012

Important breakthrough: One in ten glaucoma sufferers go blind, due to late diagnosis, drugs not working or the disease being particularly severe (file picture)

A treatment for one of the most common causes of blindness could soon be available.

British researchers have used stem cells to heal the damage caused by glaucoma.

The treatment has only been tested on rats, but scientists say it could be tested on humans by 2015 and in widespread use four years later.

At present one in ten glaucoma sufferers go blind, due to late diagnosis, drugs not working or the disease being particularly severe.

Researchers at University College London took healthy stem cells master cells capable of turning into other types of cell and widely seen as a repair kit for the body from human eyes.

They used a cocktail of chemicals to turn them into retinal ganglion cells those that die in glaucoma. They then injected these into the eyes of rats with glaucoma-like damage.

After just four weeks, the cells had connected with existing nerve cells, and the animals eyes worked 50 per cent better, the journal Stem Cells Translational Medicine reports.

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Stem cell repair kit for glaucoma could mean a treatment for the most common cause of blindness

Cryo-Cell's Affiliate, Saneron CCEL Therapeutics, Releases Pre-clinical Data Indicating That Cord Blood Stem Cells …

Repeated injections of human umbilical cord blood cells improved motor neuron survival, delayed disease progression and increased lifespan

Oldsmar, FL (PRWEB) March 06, 2012

Dr. Julie G. Allickson, PhD. Vice President of Laboratory Operations and R&D, stated This groundbreaking study demonstrates the amazing capacity of cord blood stem cells to potentially treat a devastating neurodegenerative disease through the secretion of trophic factors that resulted in neuroprotection in the ALS mouse model. The data certainly justifies additional pre-clinical investigations using umbilical cord blood stem cells. This source of cells has mainly been used in hematopoietic and immune diseases in more than 25,000 transplants to date.

Cryo- Cell is excited about the results of the research Saneron CCEL Therapeutics has completed and proud of the progress Saneron has made in the treatment for ALS. The investment community does not appreciate the value of Cryo-Cells holdings in Saneron and its world-class research initiatives, commented David Portnoy, Cryo-Cells Chairman and CEO.

Given the delay between the onset of symptoms and the actual diagnosis of ALS, the data obtained from this study was critically important to show that multiple low-doses of cord blood cells started after the symptomatic disease stage in the ALS mouse model could benefit disease outcomes, said co-author Nicole Kuzmin-Nichols, President and COO of Saneron CCEL Therapeutics, Inc. Our continuing studies are aimed at translating the preclinical data into future clinical studies.

About Cryo-Cell International, Inc.

Cryo-Cell International, Inc. was founded in 1989 and was the worlds first private cord blood bank to separate and store stem cells in 1992. Today, Cryo-Cell has over 240,000 clients worldwide from 87 countries. Cryo-Cells mission is to provide our clients with the premier stem cell cryopreservation service and to support the advancement of regenerative medicine.

Cryo-Cell operates in a state-of-the-art Good Manufacturing Practice and Good Tissue Practice (cGMP/cGTP)-compliant facility, is ISO 9001:2008 certified and accredited by the AABB. Cryo-Cell is a publicly traded company. OTC:QB Markets Group Symbol: CCEL. Expectant parents or healthcare professionals may call 1-800-STOR-CELL (1-800-786-7235) or visit http://www.cryo-cell.com.

About Saneron CCEL Therapeutics, Inc.

Saneron CCEL Therapeutics, Inc. is a biotechnology R&D company, focused on neurological and cardiac cell therapy for the early intervention and treatment of several devastating or deadly diseases, which lack adequate treatment options. Saneron, a University of South Florida spin-out company is located at the Tampa Bay Technology Incubator. An affiliate of Cryo-Cell International, Inc., Saneron is committed to providing readily available, noncontroversial stem cells for cellular therapies and has patented and patent-pending technology relating to our platform technology of umbilical cord blood and Sertoli cells.

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Cryo-Cell's Affiliate, Saneron CCEL Therapeutics, Releases Pre-clinical Data Indicating That Cord Blood Stem Cells ...

Influencing stem cell fate

Public release date: 6-Mar-2012 [ | E-mail | Share ]

Contact: Megan Fellman fellman@northwestern.edu 847-491-3115 Northwestern University

Northwestern University scientists have developed a powerful analytical method that they have used to direct stem cell differentiation. Out of millions of possibilities, they rapidly identified the chemical and physical structures that can cue stem cells to become osteocytes, cells found in mature bone.

Researchers can use the method, called nanocombinatorics, to build enormous libraries of physical structures varying in size from a few nanometers to many micrometers for addressing problems within and outside biology.

Those in the fields of chemistry, materials engineering and nanotechnology could use this invaluable tool to assess which chemical and physical structures -- including size, shape and composition -- work best for a desired process or function.

Nanocombinatorics holds promise for screening catalysts for energy conversion, understanding properties conferred by nanostructures, identifying active molecules for drug discovery or even optimizing materials for tissue regeneration, among other applications.

Details of the method and proof of concept is published in the Proceedings of the National Academy of Sciences.

"With further development, researchers might be able to use this approach to prepare cells of any lineage on command," said Chad A. Mirkin, who led the work. "Insight into such a process is important for understanding cancer development and for developing novel cancer treatment methodologies."

Mirkin is the George B. Rathmann Professor of Chemistry in the Weinberg College of Arts and Sciences and professor of medicine, chemical and biological engineering, biomedical engineering and materials science and engineering. He also is the director of Northwestern's International Institute for Nanotechnology (IIN).

The new analytical method utilizes a technique invented at Northwestern called polymer pen lithography, where basically a rubber stamp having as many as 11 million sharp pyramids is mounted on a transparent glass backing and precisely controlled by an atomic force microscope to generate desired patterns on a surface. Each pyramid -- a polymeric pen -- is coated with molecules for a particular purpose.

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Influencing stem cell fate

UNC Hospitals preps for triple-tandem stem cell transplant

CHAPEL HILL, N.C. --

A Carrboro man is getting the first triple-tandem stem cell transplant performed at UNC Hospitals to treat a testicular cancer recurrence.

David Alston was diagnosed with testicular cancer a year ago. He went through chemotherapy at UNC and thought he'd beat it, but doctors discovered the cancerhad come back during a routine blood test.

"I was devastated", said Alston. "I completely fell apart."

He found hope again when Dr. Paul Armstead at UNC Hospitalssuggested a treatment that involved stem cell transplants.

"It's good for someone young like David whose already tolerated all the chemotherapy we've given him," said Dr. Armstead. "We think this is his best chance of being cured of this disease."

Alston's stem cells were recovered in a process that Alston says is like giving blood.

"Once we give a high dose of chemotherapy we then take some of his frozen bone marrow stem cells and give those back to him," explained Dr. Armstead. "This allows his blood count to recover and that's transplant number one."

Alston's treatment is unique because he'll receive three transplants. It's a process that will keep him in the hospital for about nine weeks and take a major toll on his immune system.

"I'm nervous because I know there's going to be a point where I just feel terrible," said Alston.

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UNC Hospitals preps for triple-tandem stem cell transplant

Influencing stem cell fate: New screening method helps scientists identify key information rapidly

ScienceDaily (Mar. 6, 2012) Northwestern University scientists have developed a powerful analytical method that they have used to direct stem cell differentiation. Out of millions of possibilities, they rapidly identified the chemical and physical structures that can cue stem cells to become osteocytes, cells found in mature bone.

Researchers can use the method, called nanocombinatorics, to build enormous libraries of physical structures varying in size from a few nanometers to many micrometers for addressing problems within and outside biology.

Those in the fields of chemistry, materials engineering and nanotechnology could use this invaluable tool to assess which chemical and physical structures -- including size, shape and composition -- work best for a desired process or function.

Nanocombinatorics holds promise for screening catalysts for energy conversion, understanding properties conferred by nanostructures, identifying active molecules for drug discovery or even optimizing materials for tissue regeneration, among other applications.

Details of the method and proof of concept is published in the Proceedings of the National Academy of Sciences.

"With further development, researchers might be able to use this approach to prepare cells of any lineage on command," said Chad A. Mirkin, who led the work. "Insight into such a process is important for understanding cancer development and for developing novel cancer treatment methodologies."

Mirkin is the George B. Rathmann Professor of Chemistry in the Weinberg College of Arts and Sciences and professor of medicine, chemical and biological engineering, biomedical engineering and materials science and engineering. He also is the director of Northwestern's International Institute for Nanotechnology (IIN).

The new analytical method utilizes a technique invented at Northwestern called polymer pen lithography, where basically a rubber stamp having as many as 11 million sharp pyramids is mounted on a transparent glass backing and precisely controlled by an atomic force microscope to generate desired patterns on a surface. Each pyramid -- a polymeric pen -- is coated with molecules for a particular purpose.

In this work, the researchers used molecules that bind proteins found in the natural cell environment, such as fibronectin, which could then be attached onto a substrate in various patterns. (Fibronectin is a protein that mediates cell adhesion.) The team rapidly prepared millions of textured features over a large area, which they call a library. The library consisted of approximately 10,000 fibronectin patterns having as many as 25 million features ranging in size from a couple hundred nanometers to several micrometers.

To make these surfaces, they intentionally tilt the stamp and its array of pens as the stamp is brought down onto the substrate, each pen delivering a spot of molecules that could then bind fibronectin. The tilt results in different amounts of pressure on the polymeric pens, which dictates the feature size of each spot. Because the pressure varies across a broad range, so does the feature size.

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Influencing stem cell fate: New screening method helps scientists identify key information rapidly

Nuvilex Announces Major Breakthrough in Stem Cell Research

SILVER SPRING, Md.--(BUSINESS WIRE)--

Nuvilex, Inc. (OTCQB:NVLX), an emerging biotechnology provider of cell and gene therapy solutions, released information today about the companys cell encapsulation technology and the breakthrough in stem cell research which overcomes specific fundamental challenges faced in stem cell therapyhost rejection and migration of implanted cells away from the target site.

Stem cell therapy is believed by many medical researchers as holding a key to treating cancer, Type 1 diabetes mellitus, Parkinson's disease, Huntington's disease, Celiac Disease, cardiac failure, muscle damage, neurological disorders, and other chronic, debilitating diseases. There are presently >1,400 registered trials using stem cells that are recruiting patients (ClinicalTrials.gov). The encapsulation technology being advanced allows live stem cells to be implanted into robust, flexible and permeable capsules where they can replicate inside the capsules at the target site free from attack by the bodys immune system and free to undergo natural changes to become the appropriate cell type needed.

The Goldman Small Cap Research report, issued February 29, 2012, noted some inherent difficulties encountered in stem cell treatments, such as keeping stem cells alive for significant periods of time, potential rejection of the cells and subsequent destruction by the recipients immune system, and the migration of the stem cells away from the critical treatment site, while making a distinction that the Companys cell encapsulation technology overcomes these concerns.

The report also accurately recognized, Cells encapsulated in SG Austrias porous beads remain alive for long periods of time in humans, surviving intact for at least two years. Once encapsulated, cells are protected from the bodys immune system. Furthermore, encapsulated cells remain within the beads and do not migrate out of the beads to other sites in the body.

In assessing the overall importance of this technology to Nuvilexs overall business model, Goldman pointed out, The Companys acquisition of the Cell-in-a-Box approach along with the expertise of SG Austria could significantly advance the implementation and utilization of stem cells for a host of debilitating diseases and conditions, in addition to being used to target cancer cells, thus making it a uniquely valuable commodity. We believe that by partnering with leading players in the field, Nuvilex could find that companies with deep pockets would be happy to collaborate or license the delivery system and engage in further research which could result in meaningful development and licensing revenue.

Dr. Robert Ryan, Chief Executive Officer of Nuvilex, added, There is a broad range of expanding research supporting the use of stem cells to treat a variety of human diseases and conditions. Our technology allows for precise maintenance and localization of stem cells, preventing their loss from the critical area of need, that will enable us to potentially create miniature organs at specific sites and as a result we believe greater utilization of those stem cells at the site for their intended purpose, once implanted. As stem cell treatments advance, we expect Nuvilex to be at the forefront of developing new, significant, life changing therapies.

For a detailed review of the research report and valuation methodology, investors are directed to the Goldman Research Report.

About Nuvilex

Nuvilex, Inc. (OTCQB:NVLX) is an emerging international biotechnology provider of clinically useful therapeutic live encapsulated cells and services for encapsulating live cells for the research and medical communities. Through our effort, all aspects of our corporate activities alone, and especially in concert with SG Austria, are rapidly moving toward completion, including closing our agreement. One of our planned offerings will include cancer treatments using the companys industry-leading live-cell encapsulation technology.

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Nuvilex Announces Major Breakthrough in Stem Cell Research

BioTime and Aastrom Biosciences — Stem Cell Research Making Breakthroughs

NEW YORK, NY--(Marketwire -03/05/12)- February was a challenging month for stem cell stocks. TickerSpy's Stem Cell Stocks Index (RXSTM) has slipped nearly 13 percent over the last month -- underperforming the S&P 500 by close to 17 percent over that time frame. Despite the drop in investor optimism, new and promising research continues to propel the industry forward. Five Star Equities examines the outlook for companies in the Biotechnology industry and provides equity research on BioTime, Inc. (AMEX: BTX - News) and Aastrom Biosciences, Inc. (NASDAQ: ASTM - News). Access to the full company reports can be found at:

http://www.fivestarequities.com/BTX

http://www.fivestarequities.com/ASTM

A new study at Johns Hopkins University has shown that stem cells from patients' own cardiac tissue can be used to heal scarred tissue after a heart attack. "This has never been accomplished before, despite a decade of cell therapy trials for patients with heart attacks. Now we have done it," Eduardo Marban, director of the Cedars-Sinai Heart Institute and one of the study's co-authors, said in a statement. "The effects are substantial."

In another study, researchers led by Jonathan Tilly, director of the Vincent Center for Reproductive Biology at Massachusetts General Hospital, argue they've discovered the ovaries of young women harbor very rare stem cells capable of producing new eggs.

Five Star Equities releases regular market updates on the biotechnology industry so investors can stay ahead of the crowd and make the best investment decisions to maximize their returns. Take a few minutes to register with us free at http://www.fivestarequities.com and get exclusive access to our numerous stock reports and industry newsletters.

Aastrom Biosciences, Inc., a regenerative medicine company, engages in developing autologous cell therapies for the treatment of severe and chronic cardiovascular diseases.

BioTime, Inc. primarily focuses on regenerative medicine, which refers to therapies based on human embryonic stem (hES) cell and induced pluripotent stem (iPS) cell technology designed to rebuild cell and tissue function lost due to degenerative disease or injury. The company recently elected to market progenitors of muscle stem cells bearing hereditary diseases. BioTime will produce the products from five human embryonic stem (hES) cell lines from Reproductive Genetics Institute (RGI) of Chicago, Illinois.

Five Star Equities provides Market Research focused on equities that offer growth opportunities, value, and strong potential return. We strive to provide the most up-to-date market activities. We constantly create research reports and newsletters for our members. Five Star Equities has not been compensated by any of the above-mentioned companies. We act as an independent research portal and are aware that all investment entails inherent risks. Please view the full disclaimer at: http://www.fivestarequities.com/disclaimer

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BioTime and Aastrom Biosciences -- Stem Cell Research Making Breakthroughs

Company's new partnership will bring jobs to Jessamine Co.

NICHOLASVILLE A partnership with a larger distribution company means that MediVet America will bring more jobs to Jessamine County.

MediVet, headquartered in Nicholasville, is a two-year-old company that makes stem-cell kits for the treatment of animals. Late last month, MediVet announced its partnership with Butler Schein Animal Health to sell and distribute stem-cell kits to veterinarians around the world.

That means a bigger sales force pitching MediVet's products and that, in turn, means the company will hire more people and bring manufacturing to Jessamine County, said MediVet CEO Jeremy Delk. The company's products are now manufactured in Australia.

MediVet employs 12 full-time people in Nicholasville, and Delk anticipates that Jessamine County will gain five to seven sales jobs and 10 to 20 manufacturing jobs in the "next three to six months."

Butler Schein, headquartered in Dublin, Ohio, sells all kinds of equipment and supplies to veterinarians, and has nearly 400 sales representatives. That sales force means "more feet on the ground" to tout MediVet's products and services to veterinarians, Delk said.

Stem cells are simple cells in the body that can develop into any one of various kinds of cells, such as blood cells, skin cells, etc. They can regenerate new cells to replace or repair damaged tissue.

The stem cells used in veterinary medicine are not embryonic, which have attracted controversy in recent years, but are taken from "adipose" or the fat tissue of an adult animal.

The kits that MediVet sells enable veterinarians to remove a small sample of fat, separate the stem cells, then activate and inject them back into affected areas.

While equine vets are using stem cells to treat horses for soft-tissue problems and joint diseases, the small-animal market is much bigger, Delk said.

There are 170 million dogs and cats in the United States, and 25 percent of them will suffer from sort of degenerative disease like osteoarthritis, hip dysplasia, or damage to joint cartilage, ligaments and tendons.

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Company's new partnership will bring jobs to Jessamine Co.

It's not pulp fiction

Stem cell therapy is poised to become the next big thing in the treatment of major diseases. Even those extracted from dental pulp can be preserved for future use

Watching his five-year-old pull at his loose tooth, dad Shekar remembered something he had read in a dental clinic. Stem cells from teeth, called dental pulp stem cells (DPSCs) could be preserved and retrieved to treat his son if he had a major ailment in future. Stemade, a private company, would arrange to collect DPSCs through its Smile Clinics and store them in state-of-the-art labs in several cities across the country. His thought: Stem cell technology is the next big step in medical treatment. Banking SCs is medical bio-insurance for his kid.

Stem cell therapy didn't jump out of a box yesterday. We've heard of it being used in treating leukaemia. Patients with spinal cord injury have spent huge sums on it hoping to get up and walk. Some ask: If a house lizard can grow back its tail, why can't we get our systems to re-start with a million multiplying stem cells?

Kinds of cells

The best cells for banking are embryonic cells which are programmed to develop and grow. But harvesting these is banned. Ethical issues, you know. Adult SCs beyond the embryonic stage are classified as haematopoietic (from umbilical cord blood and bone marrow) and mesenchymal (tissues and organs). While haematopoietic cells are used in the treatment of blood-related diseases such as haemophilia, blood cancer and skin troubles, tissue cells are tried on all problems other than these. HSCs are collected only from the umbilical cord and bone marrow. Tissue cells are taken from many body sources such as bone marrow, placenta, menstrual blood, cornea, outer layer of the heart, liposuction waste and teeth pulp.

Among these DPSCs are perhaps the best option, says Shailesh Gadre, MD, Stemade Biotech. We all lose our milk teeth and cell extraction here is almost painless. As for the permanent teeth, we can harvest the pulp when people have to lose them for orthodontic (cosmetic) reasons, as when braces are fixed or teeth are extracted because of poor positioning. Of course, they need to be free of caries and other dental infections.

But as we age, our cells age too, so DPSCs are best extracted and preserved when we're very young, when the cells are virile and robust. DPSCs have extraordinary doubling properties that give them a huge advantage over other stem cells, says Dr. Julian Deepak, Medical Advisor, Stemade. They are derived from the same source as nerve cells, with the same capacity as neuron cells, making them a better option for treating Parkinson's, Alzheimer's and muscular dystrophy. Work is on to see their effectiveness in curing diabetes.

Back to the kid's tooth. After the dad's call, a dentist from Stemade will check if Milan's tooth is free of disease. At a Smile Clinic he will extract it and take a blood sample. The dentist will then place the tooth in a specially-designed vial of antibiotic solution. The vial will be packed in ice-gel to keep the temperature low during transport. At their lab (which I visited) in suburban Chennai, a visual inspection is done, the tooth is flooded with anti-bacterial solution and broken open. The pulp is extracted, divided into parts for quality control and sterility (aerobic/anaerobic) tests. The processing is done in zero-contamination conditions and the cells are put in 5 different vials and placed in the vapour phase of liquid nitrogen for cryo-preservation. It is complete, patented technology. The cells are stored in raw format and can be retrieved when needed. Shekar gets a certificate and a CR Management number which will be part of his son's medical records.

These are your own (autologous) cells and will need no matching should you need them for treatment of tissue-and-organ-related diseases such as spinal cord/bone/liver/cartilage regeneration, diabetes, eye-care, etc., says Shailesh. Adds Dr. Julian, Now for most diseases we just do maintenance therapy. With their regenerative property, stem cells will cure diseases in the future.

Fine, but for a few details. One, is the banking fee? Yes, you have to pay for the banking facility, but we can help you with EMIs, says Shailesh. Subsidies are given to the poor as part of CSR. We want to reach as many households as possible. Others are the right to will it and fool-proof identification of the cells. We may store DPSCs at six and may need them at sixty.

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It's not pulp fiction