Author Archives: admin


Researchers first to use common virus to ‘fortify’ adult stem cells …

Apr. 1, 2013 Using the same strategy that a common virus employs to evade the human immune system, researchers at Wake Forest Baptist Medical Center&s Institute for Regenerative Medicine have modified adult stem cells to increase their survival & with the goal of giving the cells time to exert their natural healing abilities.

&Basically, we&ve helped the cells be &invisible& to the body&s natural killer cells, T cells and other aspects of the immune system, so they can survive to promote healing,& said Graca Almeida-Porada, M.D., Ph.D., senior author and professor of regenerative medicine at Wake Forest Baptist.

The research, reported in the current issue of PLOS ONE, a peer-reviewed, open access journal, involves mesenchymal stem cells (MSCs), found in bone marrow, peripheral and cord blood and fetal liver and lung tissue. These cells are known for their ability to migrate to damaged tissues and contribute to healing. However, like all cells, they are susceptible to being killed by the body&s complement system, a part of the immune system involved in inflammation and organ rejection.

&These cells have a natural ability to help modulate the immune response, so if we can increase their survival, they theoretically could be a therapy to decrease inflammation and help transplant patients avoid organ rejection,& said Almeida-Porada.

In the study, the researchers evaluated the potential of human cytomegalovirus (HCMV), a member of the herpes virus family, to help increase the survival of MSCs. While the HCMN virus infects between 50 percent and 80 percent of people in the U.S., it normally produces no symptoms and remains latent in the body over long periods.

&We wanted to take advantage of the virus& ability to evade the immune system,& said Almeida-Porada. &Our strategy was to modify the cells to produce the same proteins as the HCMV virus so they could escape death and help modulate inflammation and promote healing.&

MSCs were purified from human fetal liver tissue. They were then engineered to produce specific proteins expressed by the HMCV virus. Through this process, the scientists identified the protein that was most effective at increasing cell survival. Specifically, the team is the first to show that overexpression of the US2 protein made the cells less recognizable to the immune system and increased cell survival by 59 percent (+/- 13 percent).

&The research showed that modifying the cells indeed improves their survival,& said Almeida-Porada. &Next, we hope to evaluate the healing potential of these cells in conditions such as bowel disease, traumatic brain injury and human organ transplant.& The research was supported by National Institutes of Health grants HL73737 and HL97623.

Almeida-Porada&s co-researchers were Melisa A. Soland, Ph.D., and Christopher Porada, Ph.D., Wake Forest Mariana Bego, Ph.D., Institut de Recherches Cliniques de Montreal, and Evan Colletti, Ph.D, Esmail Zanjani, Ph.D., and Stephen S. Jeor, Ph.D., University of Nevada.

Share this story on Facebook, Twitter, and Google:

More:
Researchers first to use common virus to 'fortify' adult stem cells ...

Spas, salons warned on stem cell therapy

By Tina G. Santos Philippine Daily Inquirer

MANILA, PhilippinesStem cell therapy at spa centers and salons? Watch out, government agents are coming.

Health Secretary Enrique Ona says no clinic or hospital in the Philippines can offer stem cell therapy without accreditation from the Department of Health (DOH).

Speaking to reporters last week, Ona noted that while many centers are advertising stem cell therapy treatment, none of them have the approval of the health department.

As of now we have not accredited any clinic or even hospital offering stem cell therapy yet, Ona said.

Admitting that the DOH doesnt have the police power to close down erring health centers, Ona said the department would coordinate with other governmental agencies like the Department of Trade and Industry (DTI) and local governments to prevent spas and salons from offering stem cell treatment.

We will issue a warning for them to stop [doing stem cell therapy]. But if they continue despite warnings from us, thats when we will move to close them down, Ona said.

Stem cell therapy and treatment, which are becoming popular here and abroad, are medical procedures that deal with ailments by replacing malignant cells with healthy cells.

Only medical doctors with the right training can perform stem cell treatment.

Cosmetic purposes

View post:
Spas, salons warned on stem cell therapy

Stem Cell Therapy Market in Asia-Pacific to 2018 Market Research …

Mar 28

MarketResearchReports.biz Publishes Stem Cell Therapy Market in Asia-Pacific to 2018 Commercialization Supported by Favorable Government Policies, Strong Pipeline and Increased Licensing Activity. Buy the copy of this Report @ http://www.marketresearchreports.biz/analysis-details/stem-cell-therapy-market-in-asia-pacific-to-2018-commercialization-supported-by-favorable-government-policies-strong-pipeline-and-increased-licensing-activity

Albany, NY (PRWEB) March 29, 2013

To Read the Complete Report with TOC Visit: http://www.marketresearchreports.biz/analysis/155690

This report is built using data and information sourced from proprietary databases, primary and secondary research and in-house analysis by GBI Researchs team of industry experts.

GBI Research analysis finds the stem cell therapy market was valued at $545m in 2012, and is projected to grow at a Compound Annual Growth Rate (CAGR) of 10% from 2012 to 2018, to attain a value of $972m in 2018. The market is poised for significant growth in the forecast period due to the anticipated launch of JCR Pharmaceuticals JR-031 (2014) in Japan and FCB Pharmicells Cerecellgram (CCG) (2015) in South Korea.

Related Report: Mobile Health (mHealth) & Enhancing Healthcare and Improving Clinical Outcomes

The research is mainly in early stages, with the majority of the molecules being in early stages of development (Phase I/II and Phase II). Phase I/II and Phase II contribute 67% of the pipeline. Stem cell research is dominated by hospitals/universities/institutions, which contribute 63% of the molecules in the pipeline. The dominance of institutional research is attributable to uncertain therapeutic outcomes in stem cell research.The major companies conducting research in India include Reliance Life Sciences and Stempeutics Research Pvt Ltd, among others. The major institutions include PGIMER and AIIMS.

Latest Report: Global SMB Web Analytics Market 2012-2016

Scope

See the original post here:
Stem Cell Therapy Market in Asia-Pacific to 2018 Market Research ...

Stem Cell Therapy Market in Asia-Pacific to 2018 Market Research Report Available at MarketResearchReports.biz

Albany, NY (PRWEB) March 29, 2013

GBI Research, the leading business intelligence provider, has released its latest research Stem Cell Therapy Market in Asia-Pacific to 2018 Commercialization Supported by Favorable Government Policies, Strong Pipeline and Increased Licensing Activity. The report provides an in-depth analysis on stem cell research and development in India, China, Japan, South-Korea and Singapore. The report market analysis and forecasts for CABG, LSCT, Type 1 DM, Type 2 DM, Hearticellgram, Cerecellgram, Cartistem and Cupistem. The report also provides information on trends and pipelines. In addition to this, the report covers market drivers and challenges for stem cell research market.

To Read the Complete Report with TOC Visit: http://www.marketresearchreports.biz/analysis/155690

This report is built using data and information sourced from proprietary databases, primary and secondary research and in-house analysis by GBI Researchs team of industry experts.

GBI Research analysis finds the stem cell therapy market was valued at $545m in 2012, and is projected to grow at a Compound Annual Growth Rate (CAGR) of 10% from 2012 to 2018, to attain a value of $972m in 2018. The market is poised for significant growth in the forecast period due to the anticipated launch of JCR Pharmaceuticals JR-031 (2014) in Japan and FCB Pharmicells Cerecellgram (CCG) (2015) in South Korea.

Related Report: Mobile Health (mHealth) - Enhancing Healthcare and Improving Clinical Outcomes

The research is mainly in early stages, with the majority of the molecules being in early stages of development (Phase I/II and Phase II). Phase I/II and Phase II contribute 67% of the pipeline. Stem cell research is dominated by hospitals/universities/institutions, which contribute 63% of the molecules in the pipeline. The dominance of institutional research is attributable to uncertain therapeutic outcomes in stem cell research.The major companies conducting research in India include Reliance Life Sciences and Stempeutics Research Pvt Ltd, among others. The major institutions include PGIMER and AIIMS.

Latest Report: Global SMB Web Analytics Market 2012-2016

Scope

Healthcare Report: Generic Growth Strategies - Market Driven by Impending Patent Cliff, Declining R&D Productivity and Government Initiatives to Reduce Healthcare Costs

Read the original post:
Stem Cell Therapy Market in Asia-Pacific to 2018 Market Research Report Available at MarketResearchReports.biz

Italy pushes on with controversial stem cell therapy

Italian health officials are allowing a handful of patients to continue with a controversial stem cell therapy amid protests from scientists that the treatments are unproven and unsafe.

The Stamina Foundation has been administering the therapy at the public hospital Spedali Civili of Brescia to people with a range of degenerative diseases. Their approach is based on mesenchymal stem cells, derived from bone marrow, which can become mature bone and connective tissue.

In 2011 the hospital agreed to host the research and assist with cell extraction and patient treatments, stirring protests from the medical community. "The hospital is not even listed among the 13 Italian authorised stem cell factories," says Michele de Luca, director and gene therapy programme coordinator at the Centre for Regenerative Medicine in Modena. After an inspection in 2012, Italian drug regulator AIFA ordered an immediate halt to Stamina's stem cell treatments at the hospital.

The AIFA report says the Stamina Foundation's treatment did not follow Italy's official path required for clinical approval. So far no scientific publications describing its effectiveness are available.

But the halt sparked protests among patients' families who believed the treatment was working. Some appealed to the courts, and as a result a few patients were allowed to go ahead with the therapy. On 15 March, a group of 13 Italian stem cell researchers published an open letter to the country's Minister of Health, Renato Balduzzi, asking him to shut down all of the Stamina Foundation's treatments at the hospital.

Instead Balduzzi signed a bill last week authorising the foundation to continue treatments in patients who had already begun the regime unless they are experiencing serious side effects.

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

Only subscribers may leave comments on this article. Please log in.

Only personal subscribers may leave comments on this article

Subscribe now to comment.

Read the original:
Italy pushes on with controversial stem cell therapy

Scientists Slam Italy’s Untested Stem Cell Therapy

ROME -- European scientists are criticizing a decision by Italy's government to allow a handful of children to be treated in public hospitals with an experimental stem cell therapy.

The adult stem cell treatment was halted in May by the Italian Pharmacological Agency. But the government last week overruled the regulator after parents went to court to demand that the therapy be continued. The health ministry, citing ethical and compassionate concerns, said the therapy shouldn't be interrupted since it hadn't shown any "grave collateral effects" in the children, some of whom are terminally ill.

In a letter to Italy's health minister, Renato Balduzzi, more than a dozen scientists criticized the decision, saying it "seems to be dictated by emotions raised by public opinion rather than scientifically based reasons."

The decision to allow the unproven therapy by the Stamina Foundation, which is based in Italy, came despite findings from a police search, including inspectors from the Italian Pharmacological Agency, at the laboratory where the stem cell treatments were being prepared.

In May, the agency ordered all work at the Stamina Foundation laboratory to stop after finding that conditions were "absolutely inadequate." The inspectors said there were "terrible maintenance and cleanliness conditions" that couldn't guarantee the cells weren't contaminated. The agency also said the doctors administering the adult stem cell treatment weren't aware of what they were injecting and the patients' medical records didn't detail the therapies.

Adult stem cells can maintain and repair tissues within a person, but there is no known benefit of removing such cells and using them to treat patients. Most research into stem cells concerns embryonic stem cells, often considered controversial because they involve the destruction of embryos. Embryonic stem cells can produce a wide variety of specialized cells, and scientists are working to harness them as repair kits for diseases, including Parkinson's and diabetes. By comparison, adult stem cells have a more limited ability to turn into other types of body tissue and are more likely to contain abnormalities than those derived from embryos. Balduzzi defended the decision to allow the treatment and described it as a "compassionate" ruling. He said it would only continue in public hospitals or research clinics under strict monitoring with the consensus of an ethics committee. The government ruling covers patients already receiving the Stamina Foundation treatment, those who had begun preparatory procedures such as the cultivation of cells, or those who by court order had been authorized to begin the treatment. "The decision of the government to authorize the continuation of therapies ordered by judges was necessary to prevent discrimination, based on autonomous decisions by judges, between patients who had begun treatment with the Stamina Method," Balduzzi said.

Several British scientists said the Italian decision set a dangerous precedent and could even encourage desperate patients to seek treatment abroad. "If politicians, doctors or patient organizations ignore the facts, they may unwittingly become party to exploitation of the most vulnerable members of society by approving meaningless `treatments,'" Austin Smith, director of the Cambridge Stem Cell Institute, said in a statement. Steve Dunnett, a stem cell expert at the University of Cardiff, said it was worrying that no details on the experimental procedure or its results in patients had been published. "Our starting position has to be that the marketing is a scam to which the correct response should indeed be to refuse a license and certainly not pay for a spurious treatment out of the public purse," Dunnett said in a separate statement.

See the original post here:
Scientists Slam Italy's Untested Stem Cell Therapy

Stem cell fate depends on ‘grip’

Mar. 28, 2013 The field of regenerative medicine holds great promise, propelled by greater understanding of how stem cells differentiate themselves into many of the body's different cell types. But clinical applications in the field have been slow to materialize, partially owing to difficulties in replicating the conditions these cells naturally experience.

A team of researchers from the University of Pennsylvania has generated new insight on how a stem cell's environment influences what type of cell a stem cell will become. They have shown that whether human mesenchymal stem cells turn into fat or bone cells depends partially on how well they can "grip" the material they are growing in.

The research was conducted by graduate student Sudhir Khetan and associate professor Jason Burdick, along with professor Christopher Chen, all of the School of Engineering and Applied Science's Department of Bioengineering. Others involved in the study include Murat Guvendiren, Wesley Legant and Daniel Cohen.

Their study was published in the journal Nature Materials.

Much research has been done on how stem cells grow on two-dimensional substrates, but comparatively little work has been done in three dimensions. Three-dimensional environments, or matrices, for stems cells have mostly been treated as simple scaffolding, rather than as a signal that influences the cells' development.

Burdick and his colleagues were interested in how these three-dimensional matrices impact mechanotransduction, which is how the cell takes information about its physical environment and translates that to chemical signaling.

"We're trying to understand how material signals can dictate stem cell response," Burdick said. "Rather than considering the material as an inert structure, it's really guiding stem cell fate and differentiation -- what kind of cells they will turn into."

The mesenchymal stem cells the researchers studied are found in bone marrow and can develop into several cell types: osteoblasts, which are found in bone; chondrocytes, which are found in cartilage; and adipocytes, which are found in fat.

The researchers cultured them in water-swollen polymer networks known as hydrogels, which share some similarities with the environments stem cells naturally grow in. These materials are generally soft and flexible -- contact lenses, for example, are a type of hydrogel -- but can vary in density and stiffness depending on the type and quantity of the bonds between the polymers. In this case, the researchers used covalently cross-linked gels, which contain irreversible chemical bonds.

When seeded on top of two-dimensional covalently cross-linked gels, mesenchymal stem cells spread and pulled on the material differently depending on how stiff it was. Critically, the mechanics guide cell fate, or the type of cells they differentiate it into. A softer environment would produce more fat-like cells and a stiffer environment, where the cells can pull on the gel harder, would produce more bone-like cells.

Follow this link:
Stem cell fate depends on 'grip'

Scientists criticize Italy for allowing unproven stem cell therapy

Scientists have criticized an Italian government decree allowing a group of terminally-ill patients to continue using an unproven stem cell treatment, saying such therapies may cause harm and risk exploiting desperate people.

The treatment, created by the privately-owned Stamina Foundation, was banned by Italian medicines regulator AIFA last year after it inspected their laboratories, leading to a series of legal challenges by families of patients.

In early March, Health Minister Renato Balduzzi allowed a terminally ill child to continue using the Stamina treatment after hearing the emotional pleas of her parents.

Related: Catholic Church gives its blessing to stem cell research in new book

The Health Ministry then issued an official decree on March 21 allowing 32 patients, mainly children, already using the treatment to continue it.

Scientists from around Europe released a statement on Thursday criticizing the decree, warning that Balduzzi was "riding roughshod over existing European licensing criteria", failing to protect patients from exploitation and ignoring the need for sound evidence that therapies are effective.

"These unproven and ill-prepared stem cell therapies, for which there is no scientific basis, will do nothing for patients and their families except make them poorer," said Charles French-Constant from the University of Edinburgh's Center for Regenerative Medicine.

'Dangerous precedent'

Advocates of the therapy say strict regulations work in favor of big drug companies with their portfolio of blockbuster treatments, reducing the pool of potential competitors. But scientists said Stamina's treatment was unproven and risky.

"There is no rationale for this and no evidence that these procedures are not dangerous for patients," said Professor Michele De Luca of the University of Modena.

Read the original:
Scientists criticize Italy for allowing unproven stem cell therapy

IDIBELL signs agreement with Histocell to use … – Stem Cell Cafe

Mar 28

The Bellvitge Biomedical Research Institute (IDIBELL) has signed a licensing agreement with the Spanish biotech company Histocell to make use of a patent for the treatment of acute pulmonary diseases with mesenchymal stem cells. These cells, administered intravenously, have the ability to go directly to the damaged lungs, acting as a &smart drug&.

To enhance the effect, researchers have modified this cells by genetic engineering. The studies have been developed by a team led by Josep Maria Aran, researcher at the Human Molecular Genetics group of IDIBELL, in collaboration with researchers of the Pneumology group at Vall d&Hebron Research Institute (VHIR) and the Biomedical Research Network Centre for Respiratory Diseases (CIBERES). The outcomes of the research have supposed an international patent application managed by the Technology Transfer Office (TTO) at IDIBELL.

The researchers use adult mesenchymal stem cells extracted from adipose tissue obtained from liposuction. These cells are capable of enhancing the regeneration of the damaged lung tissue and secrete inflammatory proteins therein when injected into the blood.

Improvements

The novelty patented by IDIBELL and VHIR researchers has been the insertion of improvements through genetic engineering that can significantly enhance the anti-inflammatory and regenerative power of the mesenchymal cells. Specifically, researchers have modified the antagonist to secrete interleukin 33, a regulatory protein (cytokine) that has a fundamental role in the inflammatory process.

The treatment has proven to be very effective given intravenously, although it could be considered the option of administering it by inhalation.

In the administered dose, these stem cells do not involve immune rejection, because the body removes them after their function is performed. This makes them particularly useful for treating acute diseases.

Good results

Read the original post: IDIBELL signs agreement with Histocell to use patent for acute pulmonary diseases with stem cells

Read more from the original source:
IDIBELL signs agreement with Histocell to use ... - Stem Cell Cafe