UW-Madison scientists grow functional artery cells from stem cells – Madison.com

In a step toward one of stem cell sciences chief goals, UW-Madison researchers have grown functional human artery cells that helped lab mice survive heart attacks.

The development, from the lab of stem cell pioneer James Thomson, could help scientists create arteries to use in bypass surgeries for cardiovascular disease, the nations top killer. Several challenges remain, however, and studies in people are years away.

This work provides valuable proof that we can eventually get a reliable source for functional arterial endothelial cells and make arteries that perform and behave like the real thing, Thomson said in a statement.

The research, reported Monday in the journal Proceedings of the National Academy of Sciences, is part of a federally funded effort at UW-Madison to create artery banks for cardiovascular surgery from universally compatible donors.

In a related project, other UW-Madison researchers are testing three-dimensional heart patches of heart muscle cells, grown from stem cells, in pigs. The goal is to replace diseased or damaged heart tissue in humans.

Since Thomson became the first scientist to successfully grow human embryonic stem cells in a lab in 1998, researchers around the world have been coaxing the universal cells into various cell types heart, pancreas, kidney, brain to develop therapies and better understand diseases.

Today, many researchers use cells reprogrammed to their embryonic state from mature cells known as induced pluri- potent stem, or iPS, cells as the raw material. Thomson helped discover iPS cells in 2007.

Many labs can convert embryonic stem cells or iPS cells into specific cell types, but developing specialized cell lines that are pure, functional and robust has been a challenge.

Thomson and his team set out to find a recipe for growing artery cells that would really function like arteries.

The researchers used two new techniques: single-cell RNA sequencing to identify genes highly expressed in cells that initiate artery development, and CRISPR-Cas9 gene editing to evaluate the function of the genes.

They found that five small molecules and growth factors are needed to encourage iPS cells to become functional artery cells. To their surprise, they discovered that insulin, a common growth factor that had been used before in trying to grow artery cells, actually inhibits such growth.

They used their recipe to make artery cells, and tested the cells in mice that had their left coronary arteries tied off to mimic heart attacks. Four weeks later, 83 percent of mice treated with the cells were alive, compared to 33 percent of mice that didnt get the cells.

We can use those cells to further create tissue-engineered arteries for bypass surgeries, said Jue Zhang, a scientist in Thomsons lab at the Morgridge Institute for Research and lead author of the study.

Developing off-the-shelf bypasses for surgery is the goal of an $8 million, seven-year grant UW-Madison received last year from the National Heart, Lung and Blood Institute to create universal artery banks.

The blood vessels of many cardiovascular disease patients arent suitable for use as bypasses, doctors say, and growing bypasses from individual patients stem cells would be timely and expensive. The hope is to use iPS cells from a rare population of genetically compatible donors to grow arteries anyone could use.

UW-Madison scientists, including engineers Tom Turng and Naomi Chesler and pathologist Igor Slukvin at the Wisconsin National Primate Research Center, plan to grow artery cells on scaffolds and test them in monkeys. If successful, the cells would be produced for human studies at the Waisman Biomanufacturing facility on campus.

The heart patches involve another $8.6 million, seven-year National Institutes of Health grant, shared with the University of Alabama-Birmingham and Duke University.

The patches involve three types of heart cells, derived from iPS cells, said Dr. Tim Kamp, a UW-Madison cardiologist and co-director of the universitys Stem Cell and Regenerative Medicine Center.

In studies in pigs, getting the patches to connect and survive when transplanted to pig hearts after heart attacks remains a challenge, Kamp said. Immune tolerance of the human grafts in pigs is another concern, he said.

But if such hurdles can be overcome, tests in humans could follow.

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Vatican’s Academy for Life Appoints Eugenicist – Church Militant

VATICAN CITY (ChurchMilitant.com) - The Pontifical Academy for Life (PAL) has added to its scandal by appointing a eugenicist involved in stem-cell research to its corp of 45 ordinary members, along with a pro-abortion philosopher, another pro-abortion eugenicist and a pro-contraception priest, who also supports euthanasia by starvation.

Professor Katarina Le Blanc, professor of stem cell research at the pro-abortion Swedish Karolinska Institute was appointed last month to PAL under Abp. Paglia. Le Blanc carries out her research, using stem cells derived from aborted babies even though the same academy, under the watch of Pope St. John Paul II, condemned such work in 2000.

In condemning the practice of experimenting on embryonic stem cells, PALremarked, "[It] is not hard to see the seriousness and gravity of the ethical problem posed by ... the production and/or use of human embryos."

There are other appointees to PAL with serious moral issues such as Fr. Maurizio Chiodi, who's supposedly a leading Italian moral theologian. He not only rejectsthe Church's ban on the use of artificial birth control but also believes it isn't obligatory to provide food and water to patients. Contrary to Fr. Chiodi's position, PAL stated in 2000 that food and water must always be provided to patients.

Nigel Biggar, one of 45 new ordinary members chosen to serve a five-year term on the Vatican's pro-life academy, believes it's morally acceptable to abort a person before 18 weeks of gestation. During an interview in 2011,Nigel, an Anglican minister and Regius Professor of Moral and Pastoral Theology at the U.K.'s University of Oxford, stated, "I would be inclined to draw the line for abortion at 18 weeks after conception, which is roughly about the earliest time when there is some evidence of brain activity and therefore of consciousness."

In spite of the fact that many of these appointments to the supposedly pro-life institute are manifestly not pro-life, the head of the institute, Abp. Paglia,defends the appointments.

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New NUH study to test stem cells as treatment for liver disease – TODAYonline

SINGAPORE The use of stem cell treatment to repair liver cirrhosis, or hardening of the liver, will be tested in a clinical trial here involving 46 patients and costing S$2.6 million.

The four-year study, which was launched yesterday, came amid a growing waiting list in Singapore for a liver transplant, which is currently the only cure for patients with end-stage liver cirrhosis.

Conducted by a multi-centre team from several restructured hospitals here, the study is led by the National University Hospital (NUH).

Liver failure is one of the top 20 causes of death in Singapore, but many patients are not suitable for a transplant due to factors such as age and surgical fitness.

Out of every five patients doctors see with end-stage liver disease, only one qualifies for a liver transplant, said Dr Dan Yock Young, principal investigator of the clinical trial and senior consultant at NUHs division of gastroenterology and hepatology.

(A liver transplant) is curative, but it is a complex procedure, and many patients are not suitable for it. For these patients, treatment is limited, but morbidity and mortality rates are high as high as 50 per cent in one year and this is probably worse than many (of the) other terminal illnesses we talk about today, he said.

Animal studies conducted over the last five years have shown that stem cells can reconstruct the micro-environment of a normal liver.

Like how branches are of critical importance in supporting the leaves and fruits of a tree, the endothelial (stem) cells contribute to supporting a nutritious environment for the hepatocyte (liver) cells, Dr Dan explained.

While similar stem-cell studies have been conducted in other centres in Asia, there has been no definitive evidence of the benefits of the treatment for liver patients.

The study will recruit 46 patients aged between 40 and 70 years old, and who are at the terminal stages of chronic liver disease, over three years. It is funded by the National Medical Research Council.

During the clinical trial, patients will be divided into a therapeutic group and a control group.

All patients will receive an injection to stimulate their bone marrow cells as part of the supportive treatment for their liver cirrhosis. However, only patients in the study group will have the stem cells from the bone marrow extracted and deposited directly into their liver for more targeted repair.

Using ones own stem cells will avoid the problem of cell rejection.

The liver tissue will be examined three months later, and an investigation to compare pre- and post-transplant results will be conducted after a year.

Since invasive surgery is not required for stem-cell therapy, the fatality risk is significantly lowered for the patient. However, other risks such as severe bleeding and infections still remain, given the patients weakened condition.

NUH also noted that the stem-cell therapy does not replace liver transplants, and the latter remains the best available treatment for liver cirrhosis.

It is very painful to turn patients away when we cannot offer them a liver transplant, said Dr Dan, adding that this stem cell therapy will serve as an alternative option.

We hope that this is a stepping stone to trials for stem cell candidates, he added.

MORE WAITING FOR A LIVER

The number of people on the waiting list for a liver transplant has been growing in recent years. In June last year, it was reported that there were 54 people on the list, more than double the 24 patients in 2011.

Chronic Hepatitis B remains the primary cause of non-alcoholic fatty liver disease, which refers to a range of liver conditions affecting people who drink little to no alcohol. However, obesity has become a contributing factor to the illness as well.

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New NUH study to test stem cells as treatment for liver disease - TODAYonline

Ashli Stempel helped save her brother’s life. She hopes to inspire others. – GazetteNET

A few small scars on Ashli Stempels lower back are the only evidence that a drill burrowed into her hipbone last year at Brigham and Womens Hospital in Boston. The surgery was to harvest the stem cells in her bone marrow to save her older brother Andrew Stempels life.

At age 27, Andrew was diagnosed with cancer of the white blood cells called Hodgkins lymphoma. Donating her bone marrow so that Andrews body could manufacture healthy blood cells, was a small price to pay to give him a shot at survival, Ashli says.

Since the transplant last August after years of treatment and testing Andrew has been cancer-free and Ashli now volunteers periodically in their hometown of Greenfield, where she serves on the Town Council, to spread awareness about this life-saving treatment.

Our bodies are a cure for some cancers, says Ashli Stempel on a recent Saturday as she handsout sign-up forms atGreenfields Energy Park for the Be A Matchnational donor registry. If even one person joins the registry that is awesome.

Its a sunnyday and Stempel, 30,wearing a black and white spaghetti-strap dress stands behind a booth smiling and talking to passersby.

Everybody wants to cure cancer, but I think not everybody understands that we, ourselves, can be the cure for some types of cancers, she says. I can say that I killed cancer and I am pretty excited about that.

In the hollow spaces in a bodys bones, stem cells inside the bone marrow tissue work to create red blood cells, which feed oxygen to the organs, and make white blood cells to fight infections. The bone marrow also produces blood platelets to help form clots but when a cancer of the blood like, leukemia or lymphoma strikes, these life-supporting systems are thrown out of whack, leaving the bodys immune system unable to fight diseases, infection or the cancer.

Chemotherapy and radiation also can kill off bone marrow tissue, leaving patients with more damage to their immune systems, says physician assistant Susanne Smith, donor services clinician at Dana-Farber/Brigham and Womens Hospitals Cancer Center in Boston.

When transplanted into a cancer patients bloodstream, stem cells, a precursor to all the immune system cells in the body, colonize the bones and help fight any remaining cancer, says Smith.

In many cases (a transplant) is the only cure for a leukemia or lymphoma diagnosis chemotherapy can only get a patient so far, says Mary Halet, director of community engagement at the Be The Match Registry, the Minneapolis organization that manages the largest bone marrow registry in the world. But first, a patient must find a tissue match, that is, a donor who has a similar protein marker called the human leukocyte antigen, which is found on most cells in the body.

There are up to 14,000 patients every year who could benefit from a bone marrow transplant, but many of these people will not receive a donation, says Halet. In most cases, the patient will not finda tissue match in his or her own family andmust seek help from a stranger, she says. A patients likelihood of finding a matching bone marrow donor ranges from 66 percent to 97 percentdepending on ethnic background. White patients have a 97 percent chance of finding a match, while black patients only find a match 66 percent of the time.The difference reflects the complexity of the tissues makeup and the number of donors.

Thats why Halets organization promotes recruitment events like the one Ashli Stempel held in Greenfield.

Stempel says she was ecstatic when she found out that she was a match for her brother. She was in her late 20s at the time, a bubbly woman working in communications at Smith College in Northampton, who grew up in a close-knit family.

Her brother, who was working as a retail manager in the Boston area, had discovered a bump on his collarbone.

I woke up one morning and there was a non-painful lump, Andrew Stempel says.

He ignored it for as long as he could before seeing a doctor who diagnosed it as a swollen lymph node caused by Hodgkins lymphoma.

Cancer is a very scary word. I think what you learn going through it is that it is not such a scary word, you can survive, says Ashli Stempel.

The Stempel family had seen that firsthand years earlier when Andrew and Ashlis mother, Deborah, recovered from breast cancer.

Still, that didnt lessen the anxiety for Andrew. As soon as the doctor said the word cancer, he says, his life started to unravel with a battery of experimental drugs, chemotherapy and radiation.

In the begining there was a lot of uncertainty, he says.

Even through his cancer went into remission after a year, doctors did not expect it to remain that way without high doses of chemo or radiation. The plan was to do a bone marrow transplant for long-term survival.

Still, using donated bone marrow meant taking the risk that Andrews body would reject it, which could be fatal.

So, doctors first wanted to try using Andrews own tissue. That would require removing some of his bone marrow, treating it and then injecting it back into his bloodstream.

Within months of the procedure, however, Andrews cancer returned, indicating to doctors that his body wasnt strong enough to fight it on its own.

Ashli was tested via a mouth swab and Andrew was relieved to learn that she was a tissue match.

I was just overwhelmed with happiness, he says.

Ashli went through a month-long screening process to ensure that she was healthy enough to be a donor. People who have infectious diseases like HIV or hepatitis cannot be donors, nor can those with immune systems weakened by autoimmune diseases. Doctors also prefer to use bone marrow from young donors under the age of 44, says Halet. The registry wont accept donors over 60.

When we are young, our immune systems are at their healthiest and the older we get the less robust they are, she says.

It took two years from the time Ashli first learned she was a match for her brother for the transplant to take place.

Not long aftershe woke up from the surgery, Ashli saw the bone marrow that had been taken from her, a two-literjug ofmilky, red liquid. It was whisked away to another partof the hospital where it ended up in a drip bag connected to a vein in Andrews arm.

Doctors saw hisred and white blood cell counts go up immediately after the transplant.

My sisters cells were working, he says. It was amazing.

Even though the transplant was a success, Andrew had to stay in the hospital for a month. Chemotherapy had caused sores in his mouth, he lost his ability to taste food along withhis appetiteand he droppednearly 30 pounds.

It was tough, day to day, but progressively got better, he says.

Since he was essentially receiving a new immune system, like a newborn baby he also had to be shielded from germs, says Ashli.

When his wife, Meghan Stempel, came to visit him, she needed to wear a facemask and gloves. Even when he returned home, he had to be careful. Hetook a year off from his job to recover, spending many afternoons resting on the couch watching TV. After spending months working to building hisstrength back up,he says, most of his weakness has subsided.

I feel a thousand times better, he says.

He is now cancer free and is returning to hisjob as a retail managerat Sherwin Williams this week.

Following her operation, Ashli took off a few weeks from her job in communications at Smith College, but was back on her feet within a couple days. Her hips were sore which meant limping around the house for a short time.

I was in pain, of course, she says. But its a quick recovery.

A few weeks ago Ashli decided to signup for the national bone marrow donor registry through Be A Matchto donate for a second time.

Her name will stay in the system for the foreseeable future. A match could come up or it might never.

Maybe I will be called on to do it again, who knows?

To learn more about becoming a bone marrow donor or to sign up for the registry, go tobethematch.org.

Potential donors can fill out an online form and the registry will mail a mouth swab kit, which can be returned by mail.

If called, a potential donor will undergo a series of blood tests which will evaluate the suitabililty and safety of the match. Though doctors say risks are low for donors, possible complications include infection and bleeding.

Once a donor is cleared, the transplant procedure could occur within a few weeks or a few months, depending on a recommendation from the patients doctor.

The bone marrow transplant is an outpatient procedure for the donor.Recovery time is only a few days anddonors are typically back to their normal routine in two to seven days.

Donors are told their commitment means being willing to devote up to 30 hours spread over four to six weeks to attend appointments and give the donation.

All medical costs for the donation procedure are covered by the National Marrow Donor Program, which operates the Be The Match Registry, or by the cancer patients medical insurance.

Sometime travel is required. Most travel expenses are covered by Be The Match.

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Ashli Stempel helped save her brother's life. She hopes to inspire others. - GazetteNET

Clinical trial for stem-cell therapy to reverse liver cirrhosis – The Straits Times

SINGAPORE - The use of stem cells to reverse liver cirrhosis - or the hardening of the liver - is being explored in a clinical trial.

Conducted by a multi-centre team led by the National University Hospital (NUH), doctors aim to determine if stem cell therapy can improve liver function.

Previously, liver cirrhosis, caused by various diseases such as chronic hepatitis B and non-alcoholic fatty liver disease, was thought to be irreversible.

A liver transplant provides a definitive cure to end-stage cirrhosis.

However, in Singapore, less than 5 per cent of end-stage liver cirrhosis patients receive a liver transplant.

The number of people on the waiting list for a liver transplant has been increasing over the years, according to statistics from the Ministry of Health.

In 2007, there were nine on the waiting list, compared with 57 last year. There are around 50 waiting for a liver transplant this year.

Also, many patients do not fulfil the eligibility criteria to receive a liver transplant due to other health complications or being above the age limit of 70 years.

The $2.6 million study, which was launched on Tuesday (July 11),is funded by the National Medical Research Counciland 46 patients will be recruited for it. It will run for four years and patients will not need to bear the costs of the stem cell treatment.

Stem cells will be taken from a patient's own bone marrow and will be isolated and injected directly into the patient's liver to initiate the repair.

Similar therapy treatments have been conducted overseas in countries such asEgypt and India, although they have not been fully evaluated for efficacy.

Associate Professor Dan Yock Young, a senior consultant in the division of gastroenterology and hepatology at NUH, said: "We are conducting the study in a systematic and scientific mannerto get definitive evidence of the effects of the treatment."

He also notes that the stem cell therapy is not a substitute for a liver transplant. "This treatment is not intended to pull patients off the waiting list, but provide an option for those who are not eligible for a transplant."

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Clinical trial for stem-cell therapy to reverse liver cirrhosis - The Straits Times

CReM Stem Cell Researcher Is Innovator of the Year – BU Today

Those who know ancient historythe first decade of the 21st centuryrecall that embryonic stem cell research was a combustible issue, with supporters cheering the potential to create new tissues from stem cells and opponents decrying the destruction of human embryos that it required. A breakthrough arrived in 2006, when a Japanese researcher developed induced pluripotent stem cells (iPS), adult cells that behaved like embryonic stem cells and had an amazing ability to develop into muscles, skin, nerves, and almost any other cell type. Two years later, a second breakthrough, this one by Gustavo Mostoslavsky, a School of Medicine associate professor of gastroenterology, produced a tool that made it simpler and more efficient to generate iPS. BU patented his tool, called STEMCCA, and he says that its been adopted by more than 700 laboratories worldwide for making iPS.

That contribution to the field has earned Mostoslavsky this years University Innovator of the Year award. The Technology Developmentoffice presents the award to a faculty member whose research yields inventions or innovations benefiting society. Mostoslavsky will receive the award today at BUs annual Tech, Drugs, and Rock n Roll networking event connecting BU researchers and Boston entrepreneurs.

I was humbly surprised and happy, he says, when Gloria Waters, vice president and associate provost for research, emailed him the news. Sometimes it is easy to lose perspective when we get busy on the many tasks of running a labgrant writing, mentoring, budget, and so forthso I guess it is nice, once in a while, to just stop and enjoy the moment, enjoy what we have done so far, and even better, if on the way we have helped many others succeed.

One way Mostoslavsky has helped others succeedthe way that makes him most proud, he saysis to have cofounded, in 2010, BUs Center for Regenerative Medicine, which he codirects. The center, which pursues stem cell research with an emphasis on lung, blood, and gastrointestinal tract diseases, practices open source biology: sharing its discoveries with scientists around the world for free rather than patenting them. In 2013, CReM moved into its own physical quarters on Albany Street on the Medical Campus.

I am delighted to see Dr. Mostoslavskys colleagues choose him for this award, says Waters. STEMCCA has dramatically improved the efficiency with which new stem cells can be generated to treat disease. His success in patenting a tool that has become industry-standard, at the same time as he and the codirectors of the CReM have become renowned for their open source biology, serves as a model to students and other researchers of how to advance science through sharing, at the same time protecting important intellectual property.

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CReM Stem Cell Researcher Is Innovator of the Year - BU Today

New approach may kill tumor cells in the brain – Harvard Gazette

Investigators from Brigham and Womens Hospital (BWH) and the Harvard Stem Cell Institute (HSCI) may have discovered a way to kill tumor cells that have metastasized to the brain.

The team has developed cancer-killing viruses that can deliver stem cells via the carotid artery, and applied them to metastatic tumors in the brains of clinically relevant mouse models. The elimination of metastatic skin cancer cells from the brains of these preclinical models resulted in prolonged survival, the investigators report. The study, published online this week in the journal PNAS, also describes a strategy of combining this therapy with immune checkpoint inhibitors.

Metastatic brain tumors often from lung, breast, or skin cancers are the most commonly observed tumors within the brain and account for about 40 percent of advanced melanoma metastases. Current therapeutic options for such patients are limited, particularly when there are many metastases, said Khalid Shah, director of the Center for Stem Cell Therapeutics and Imaging (CSTI) in the BWH Department of Neurosurgery, who led the study. Our results are the first to provide insight into ways of targeting multiple brain metastatic deposits with stem-cell-loaded oncolytic viruses that specifically kill dividing tumor cells.

In their search for novel, tumor-specific therapies that could target multiple metastases in the brain without damaging adjacent tissues, the research team first developed different BRAF wild-type and mutant mouse models that more closely mimicked what is seen in patients.

They found that injecting patient-derived, brain-seeking melanoma cells into the carotid arteries of the preclinical models resulted in metastatic tumors forming throughout the brain, mimicking what is seen in advanced melanoma cancer patients. The injected cells express markers that allow them to enter the brain and are labeled with bioluminescent and fluorescent markers to enable tracking by imaging technologies.

To devise a potential new therapy, the investigators engineered a population of bone marrow-derived mesenchymal stem cells loaded with oncolytic herpes simplex virus (oHSV), which specifically kills dividing cancer cells while sparing normal cells.

Previous research by Shah and his colleagues had shown that different stem cell types were naturally attracted to tumors in the brain. After first verifying that stem cells injected to the brain would travel to multiple metastatic sites and not to tumor-free areas in their model, the team injected the oHSV-laden stem cells into the carotid arteries of metastasis-bearing mice. This led to significantly slower tumor growth and increased survival, compared with the models that received unaltered stem cells or control injections.

Shah and his colleagues also developed an immunocompetent melanoma mouse model and explored treatments with both stem cell-loaded oHSV and immune checkpoint blockers such as those that target the PD-1/PD-L1 pathway. They found that PD-L1 immune checkpoint blockade significantly improved the therapeutic efficacy of stem cell-based oncolytic virotherapy in melanoma brain metastasis.

We are currently developing similar animal models of brain metastasis from other cancer types, as well as new oncolytic viruses that have the ability to specifically kill a wide variety of resistant tumor cells, said Shah, who is also a professor at Harvard Medical School and a principal faculty member at the Harvard Stem Cell Institute. We are hopeful that our findings will overcome problems associated with current clinical procedures. This work will have direct implications for designing clinical trials using oncolytic viruses for metastatic tumors in the brain.

The study was supported by a Department of Defense Idea Award and a grant from the National Institutes of Health.

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New approach may kill tumor cells in the brain - Harvard Gazette

Cesca Therapeutics subsidiary acquires assets of Sacramento’s SynGen Inc. – Sacramento Bee


Sacramento Business Journal
Cesca Therapeutics subsidiary acquires assets of Sacramento's SynGen Inc.
Sacramento Bee
Rancho Cordova's Cesca Therapeutics Inc., a stem cell medicine and medical technology company, announced Monday that its subsidiary has acquired the assets of SynGen Inc., the privately held Sacramento medical device company specializing in cell ...
Cesca Therapeutics Acquires the Cell Processing Systems of SynGen Under Asset Acquisition AgreementNasdaq
Cesca Therapeutics Inc (KOOL)'s Stock Is Buy After Today's Huge IncreaseFinance News Daily

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Cesca Therapeutics subsidiary acquires assets of Sacramento's SynGen Inc. - Sacramento Bee

Stem Cell Treatments in Use at Clinics Worldwide Need Regulation … – Multiple Sclerosis News Today

Advertising forstem cell therapies not supported by clinical researchoftenmadedirectly to patients and sometimes promoted as a cure for diseases like multiple sclerosis or Parkinsons is a growing problem that needs to be addressed and regulated, a team of leading experts say, calling suchstem cell tourism potentially unsafe.

Stem cell tourism is the unflattering name given to the practice of encouragingpatients totravel outside their home country to undergo suchtreatment, typicaly at a private clinic.

The article, titledMarketing of unproven stem cellbased interventions: A call to actionandrecently published inthe journal Science Translational Medicine, was co-authored by scientistswith universities and hospitals in the U.S., Canada, U.K., Belgium, Italy, Japan, and Australia. It focuses on the global problem of thecommercial promotion of stem cell therapies and ongoing resistance to regulatory efforts.

Its authors suggest that a coordinated approach, at national and international levels, be focused on engagement, harmonization, and enforcement in order to reduce risks associated with direct-to-consumer marketing of unproven stem cell treatments.

Treatments involving stem cell transplants are now being offered by hundreds of medical institutions worldwide, claiming efficacy in repairing tissue damaged by degenerative disorders like MS, even thoughthose claim often lack or are supported bylittle evidence .

They alsonoted that the continued availability of these treatments undermines the development of rigorously tested therapies, and potentially canendanger a patients life.

The researchers emphasizethat tighter regulations on stem cell therapy advertising are needed, especiallyregarding potential clinical benefits. They support the establishment ofinternational regulatory standards for the manufacture and testing of human cell and tissue-based therapies.

Many patients feel that potential cures are being held back by red tape and lengthy approval processes. Although this can be frustrating, these procedures are there to protect patients from undergoing needless treatments that could put their lives at risk, Sarah Chan, a University of Edinburgh Chancellors Fellow and report co-author, saidin anews release.

Chan and her colleagues are also calling for the World Health Organization to offer guidance on responsible clinical use of cells and tissues, as it does for medicines and medical devices.

Stem cell therapies hold a lot of promise, Chan said, but we need rigorous clinical trials and regulatory processes to determine whether a proposed treatment is safe, effective and better than existing treatments.

According to the release, the report and its recommendationsfollowed the death of two children at a German clinic in 2010. The clinichas since been shut down.

Certainstem cell therapies mostly involving blood and skin stem cells have undergone rigorous testing in clinical trials, the researchers noted. A number of theseresulted in aprovedtreatments for certain blood cancers, and to grow skin grafts for patients with severe burns.

Information about the current status of stem cell research andpotential uses of stem cell therapiesis availableon the websiteEuroStemCell.

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Stem Cell Treatments in Use at Clinics Worldwide Need Regulation ... - Multiple Sclerosis News Today

A tall order: Giraffe receives stem-cell therapy for chronic arthritis – Source

How do veterinarians help a giraffe ease its arthritis pain? Well, it takes a little more than an aspirin and a gulp of water.

Recently, Colorado State University veterinarians traveled to Cheyenne Mountain Zoo to help Mahali, a 14-year-old giraffe, with arthritis pain in his front left hoof.

Arthritis is a common problem for giraffes, especially geriatric giraffes like Mahali. Who can blame them? Weighing in at 2,000 pounds on average, their four feet support more than one ton of weight. Thats like carrying two grand pianos on your back all day.

With its 17-giraffe herd trained for voluntary husbandry, including hoof trims, blood draws and radiographs, Cheyenne Mountain Zoo is uniquely suited to help find better arthritis treatments for giraffes.

Dr. Amanda Morphet, who is training to specialize in exotic and zoo animal medicine at CSU, believes stem-cell therapy can help alleviate arthritis pain.

Currently, arthritis in these megavertebrates is managed through corrective hoof trims, non-steroidal anti-inflammatories, cold-laser therapy and pain medications. But, these practices are not always enough to keep giraffes, which can live up to 30 years, comfortable as they age.

CSU veterinarians Dr. Val Johnson and Dr. Amanda Morphet, and the zoos lead veterinarian Dr. Liza Dadone, are determined to discover a more successful way to treat these gentle giants, and they believe stem-cell therapy is the answer.

Stem-cell therapy has resulted in dramatic clinical improvement in some cases of arthritis in horses and other species, but has not, until now, been attempted in giraffes, Johnson said.

The university and the zoo began working together seven years ago, when CSU veterinarian Dr. Matt Johnston and zoo veterinarians initiated a partnership to treat zoo animals while teaching veterinary students.

This specific stem-cell research partnership began in 2016, when Johnson and Dadone started treating a geriatric elephant for arthritis with stem-cell therapy.

Johnson, who is researching regenerative medicine at CSU, has safely treated a mountain lion, tiger, wolf, coyote and dogs with stem cells over the past five years.

Regenerative medicine is a promising new avenue for treatment of chronic age-related degenerative diseases, Johnson said. I want to develop more effective methods for treating animals.

Johnson and Dadone ran a crowdfunding campaign to develop a technique to grow stem cells from giraffe blood and grow multiple treatments of stem cells. The online campaign was quickly funded.

Cheyenne Mountain Zoo staff and veterinarians use hoof-trimming techniques on giraffes to maintain foot health and help prevent foot arthritis in older giraffes. (Photo by Andrew Schroeder)

In April, Morphet and Johnson traveled with two CSU anesthesiologists, Dr. Marlis Rezende and Dr. Khursheed Mama, to Colorado Springs for the procedure on Mahali.

Mahali was in pain. He wouldnt leave pressure on his front left foot for longer than a minute or two, said Morphet, who is training to specialize in exotic and zoo animal medicine at CSUs James L. Voss Veterinary Teaching Hospital.

Mahali is trained for general footwork, but injecting stem cells requires absolute stillness. Anesthetizing a giraffe, however, is especially dangerous for the animal.

With the length of the neck and limbs, falling during induction and recovery is a big concern, Dr. Morphet said.

The large procedure room was packed tight with veterinarians, zoo staff and volunteers who assisted Mahali, which included repositioning his body, and elevating his head at different angles every 10 minutes to prevent muscle spasms, aspiration and brain swelling. The team of volunteers scooped sand under his back to help Mahali roll up once he awoke.

If this sounds like intense physical work, it is.

Veterinarians took radiographs and successfully injected stem cells while Mahali was anesthetized. Meanwhile, a farrier team trimmed his hooves.

The stem cells, which were grown from giraffe blood, were injected through a vein near Mahalis inflamed hoof. The cells remained at the injection site for 20 minutes to improve absorption into the hoof.

Under the watchful care of veterinarians and zoo staff, Mahali came out of anesthesia safely. And then, they waited six long weeks for the stem cells to take effect.

This was the first time a giraffe has received stem-cell therapy to treat arthritis. The big question: Did it work?

Six weeks after the procedure, Morphet and veterinary students visited Mahali for a check-up.

Weve seen a dramatic improvement in his clinical signs, Morphet said. Not only to his comfort level but the quality of his hoof. Hes letting us work with his feet.

Dadone, the zoo veterinarian, used a thermal camera to view the heat distribution in Mahalis feet.

With the thermal imaging, you can see hot spots in the limbs, said Kara Gendron, a fourth-year veterinary student. The warmer it is, the more likely its inflamed and painful. His left hoof was still a little warmer, but compared to what we were seeing initially, it was very similar to his right [hoof]. So, hes actually doing a lot better.

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A tall order: Giraffe receives stem-cell therapy for chronic arthritis - Source