Stem Cell Clinic

A good night's sleep keeps your stem cells young

By Uncategorized

Under normal conditions, many of the different types of tissue-specific adult stem cells, including hematopoietic stem cells, exist in a state or dormancy where they rarely divide and have very low energy demands. "Our theory was that this state of dormancy protected hematopoietic stem cells from DNA damage and therefore protects them from premature aging," says Dr. Michael Milsom, leader of the study.

However, under conditions of stress, such as during chronic blood loss or infection, hematopoietic stem cells are driven into a state of rapid cell division in order to produce new blood cells and repair the damaged tissue. "It's like forcing you out of your bed in the middle of the night and then putting you into a sports car and asking you to drive as fast as you can around a race circuit while you are still half asleep," explains Milsom. "The stem cells go from a state of rest to very high activity within a short space of time, requiring them to rapidly increase their metabolic rate, synthesize new DNA and coordinate cell division. Suddenly having to simultaneously execute these complicated functions dramatically increases the likelihood that something will go wrong."

Indeed, experiments described in the study show that the increased energy demands of the stem cells during stress result in elevated production of reactive metabolites that can directly damage DNA. If this happens at the same time that the cell is trying to replicate its DNA, then this can cause either the death of the stem cell, or potentially the acquisition of mutations that may cause cancer.

Normal stem cells can repair the majority of this stress-induced DNA damage, but the more times you are exposed to stress, the more likely it is that a given stem cell will inefficiently repair the damage and then die or become mutated and act as a seed in the development of leukemia. "We believe that this model perfectly explains the gradual accumulation of DNA damage in stem cells with age and the associated reduction in the ability of a tissue to maintain and repair itself as you get older," Milsom adds.

In addition, the study goes on to examine how this stress response impacts on a mouse model of a rare inherited premature aging disorder that is caused by a defect in DNA repair. Patients with Fanconi anemia suffer a collapse of their blood system and have an extremely high risk of developing cancer. Mouse models of Fanconi anemia have exactly the same DNA repair defect as found in human patients but the mice never spontaneously develop the bone marrow failure observed in nearly all patients.

"We felt that stress induced DNA damage was the missing ingredient that was required to cause hematopoietic stem cell depletion in these mice," says Milsom. When Fanconi anemia mice were exposed to stimulation mimicking a prolonged viral infection, they were unable to efficiently repair the resulting DNA damage and their stem cells failed. In the same space of time that normal mice showed a gradual decline in hematopoietic stem cell numbers, the stem cells in Fanconi anemia mice were almost completely depleted, resulting in bone marrow failure and an inadequate production of blood cells to sustain life.

"This perfectly recapitulates what happens to Fanconi anemia patients and now gives us an opportunity to understand how this disease works and how we might better treat it," commented Milsom.

Prof. Dr. Andreas Trumpp, director of HI-STEM and head of the Division of Stem Cells and Cancer at the DKFZ believes that this work is a big step towards understanding a range of age-related diseases. "The novel link between physiologic stress, mutations in stem cells and aging is very exciting," says Trumpp, a co-author of the study. "By understanding the mechanism via which stem cells age, we can start to think about strategies to prevent or at least reduce the risk of damaged stem cells which are the cause of aging and the seed of cancer."

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Dagmar Walter, Amelie Lier, Anja Geiselhart, Frederic B. Thalheimer, Sina Huntscha, Mirko C. Sobotta, Bettina Moehrle, David Brocks, Irem Bayindir, Paul Kaschutnig, Katja Muedder, Corinna Klein, Anna Jauch, Timm Schroeder, Hartmut Geiger, Tobias P. Dick, Tim Holland-Letz, Peter Schmezer, Steven W. Lane, Michael A. Rieger, Marieke A. G. Essers, David A. Williams, Andreas Trumpp und Michael D. Milsom: Exit from dormancy provokes DNA damage-induced attrition in haematopoietic stem cells. Nature 2015, DOI: 10.1038/nature14131

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A good night's sleep keeps your stem cells young

Okyanos Stem Cell Therapy Launches Orthopedic Lifestyle Survey

By Uncategorized

Freeport, Grand Bahama (PRWEB) March 09, 2015

Okyanos, the leader in cell therapy, launched its next in a series of studies today to determine the emotional impact and lifestyle influence orthopedic conditions such as osteoarthritis and sports-related injuries have had on those affected. The survey focuses on people between the ages of 55 and 75 living with orthopedic health issues and is designed to examine the toll on those afflicted as well as their relationships.

According to Okyanos VP Marketing Carol Montgomery, Millions of people suffer disorders of the joints, bones, muscles and connective ligaments, tendons and cartilage debilitating conditions on a daily basis, ranging from reduced function to crippling pain but have exhausted available methods of treatment. These restrictions affect them in a variety of ways and our ongoing lifestyle surveys measure the effects such chronic conditions have on todays aging population. Many are turning to solutions like adult stem cell therapy for treatment with excellent results.

The Okyanos Lifestyle and Relationship Survey for Heart Disease, of nearly 700 adults, uncovered a staggering 93% were open to alternatives to their existing heart disease treatment plan showing a growing discontent with their current options. A majority 68% were emotionally impacted and felt they were saddled with restrictions imposed by their heart conditions such as chronic fatigue and shortness of breath.

Adult stem cell therapy has emerged as a new treatment alternative for those who are restricted in activities they can no longer do but are determined to live a more normal life. Okyanos cell therapy uses a unique blend of adult stem and regenerative cells derived from a patients own fat tissue, thereby utilizing the bodys own natural biology to heal itself.

Just 50 miles from US shore, Okyanos cell therapy is available to patients suffering with the daily discomfort of orthopedic conditions including osteoarthritis, rheumatoid arthritis, sports-related injuries and spine disease.

Patients with a severe orthopedic condition, interested in participating in the study can go to: https://www.surveymonkey.com/s/ortho_Okyanos

For a copy of the Okyanos Heart Disease Lifestyle Report that reveals the emotional toll and lifestyle impact heart disease has on patients in the United States, visit: Heart Disease Lifestyle Report

Patients can contact Okyanos to learn more and request a free consultation at http://www.Okyanos.com or by calling 1-855-659-2667.

About Okyanos: (Oh key AH nos) Based in Freeport, Grand Bahama, Okyanos brings a new standard of care and a better quality of life to patients with coronary artery disease, tissue ischemia, autoimmune diseases, and other chronic neurological and orthopedic conditions. Okyanos Cell Therapy utilizes a unique blend of stem and regenerative cells derived from patients own adipose (fat) tissue which helps improve blood flow, moderate destructive immune response and prevent further cell death. Okyanos is fully licensed under the Bahamas Stem Cell Therapy and Research Act and adheres to U.S. surgical center standards. The literary name Okyanos, the Greek god of the river Okyanos, symbolizes restoration of blood flow.

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Okyanos Stem Cell Therapy Launches Orthopedic Lifestyle Survey

MS stem cell treatment hailed 'miraculous' as patients make dramatic recovery

By Stem Cell Treatment

Pioneering treatment has allowed wheelchair-bound patients to run again Patient given high dose of chemotherapy to wipe out faulty immune system Therapy then uses person's own stem cells to fight the devastating disease It may be the first ever treatment tosuccessfullyreverse symptoms of MS

By Fiona Macrae for the Daily Mail

Published: 13:27 EST, 1 March 2015 | Updated: 02:54 EST, 2 March 2015

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Britons left wheelchair-bound by multiple sclerosis can walk, run and even dance again after being given a pioneering stem cell treatment.

Doctors have described the recoveries as miraculous, while patients say they have been given their lives back.

The treatment uses a patients own stem cells the bodys master cells to fight the disease.

Recovery: MS sufferer Holly Drewerybecame wheelchair-bound after the birth of daughter Isla, but thanks tothe stem cell transplant shecan dance, run and chase after Isla in the park

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MS stem cell treatment hailed 'miraculous' as patients make dramatic recovery

'Miraculous' stem-cell treatment reverses symptoms of multiple sclerosis

By Stem Cell Treatment

A new stem-cell treatment that reboots the entire immune system is enabling multiple sclerosis sufferers to walk, run and even dance again, in results branded "miraculous" by doctors.

Patients who have been wheelchair-bound for 10 years have regained the use of their legs in the ground-breaking therapy, while others who were blind can now see again. The treatment is the first to reverse the symptoms of MS, which is incurable, and affects about 100,000 people in Britain.

The two dozen patients who are taking part in the trials at the Royal Hallamshire Hospital, Sheffield, and Kings College Hospital, London, have effectively had their immune systems "rebooted". Although it is unclear what causes MS, some doctors believe it is the immune system itself that attacks the brain and spinal cord, leading to inflammation pain, disability and, in severe cases, death.

In the new treatment, specialists use a high dose of chemotherapy to knock out the immune system before rebuilding it with stem cells taken from the patient's own blood.

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"Since we started treating patients three years ago, some of the results we have seen have been miraculous," Prof Basil Sharrack, a consultant neurologist at Sheffield Teaching Hospitals NHS Foundation Trust, said.

"This is not a word I would use lightly, but we have seen profound neurological improvements."

Holly Drewry, 25, of Sheffield, was wheelchair bound after the birth of her daughter, Isla, two years ago. She claims the new treatment has transformed her life.

"It worked wonders," she said. "I remember being in the hospital ... after three weeks, I called my mum and said: 'I can stand'. We were all crying. I can run a little bit, I can dance. I love dancing, it is silly but I do."

However, specialists warn that patients need to be fit to benefit from the new treatment.

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'Miraculous' stem-cell treatment reverses symptoms of multiple sclerosis

'Stem cell' test could identify most aggressive breast cancers

By Stem Cell Treatment

Testing breast cancer cells for how closely they resemble stem cells could identify women with the most aggressive disease, a new study suggests.

Researchers found that breast cancers with a similar pattern of gene activity to that of adult stem cells had a high chance of spreading to other parts of the body.

Assessing a breast cancer's pattern of activity in these stem cell genes has the potential to identify women who might need intensive treatment to prevent their disease recurring or spreading, the researchers said.

Adult stem cells are healthy cells within the body which have not specialised into any particular type, and so retain the ability to keep on dividing and replacing worn out cells in parts of the body such as the gut, skin or breast.

A research team from The Institute of Cancer Research, London, King's College London and Cardiff University's European Cancer Stem Cell Research Institute identified a set of 323 genes whose activity was turned up to high levels in normal breast stem cells in mice.

The study is published today (Wednesday) in the journal Breast Cancer Research, and was funded by a range of organisations including the Medical Research Council, The Institute of Cancer Research (ICR), Breakthrough Breast Cancer and Cancer Research UK.

The scientists cross-referenced their panel of normal stem cell genes against the genetic profiles of tumours from 579 women with triple-negative breast cancer - a form of the disease which is particularly difficult to treat.

They split the tumour samples into two categories based on their 'score' for the activity of the stem cell genes.

Women with triple-negative tumours in the highest-scoring category were much less likely to stay free of breast cancer than those with the lowest-scoring tumours. Women with tumours from the higher-scoring group had around a 10 per cent chance of avoiding relapse after 10 years, while women from the low-scoring group had a chance of around 60 per cent of avoiding relapse.

The results show that the cells of aggressive triple-negative breast cancers are particularly 'stem-cell-like', taking on properties of stem cells such as self-renewal to help them grow and spread. They also suggest that some of the 323 genes could be promising targets for potential cancer drugs.

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'Stem cell' test could identify most aggressive breast cancers

Infants with rare bone disease improve bone formation after cell transplantation

By Stem Cell Treatment

Severe hypophosphatasia generally fatal during infancy, bone marrow transplant along with mensenchymal stem cell transplants offers hope

Putnam Valley, NY. (Feb 9, 2015) - Recent research carried out by a team of researchers in Japan has investigated the use of bone marrow transplants (BMTs) to treat hypophosphatasia (HPP). In this study, the researchers carried out BMT for two infants with HPP in combination with allogenic (other-donated) mesenchymal stem cell transplants (MSCTs). The allogenic MSC donors were a parent of the infant.

The study will be published in a future issue of Cell Transplantation and is currently freely available on-line as an unedited early e-pub at: http://ingentaconnect.com/content/cog/ct/pre-prints/content-CT-1337_Taketani_et_al

"Hypophosphatasia" (HPP) is a rare and most often fatal genetic bone disease affecting infants that has no current treatment. The disease is caused by mutations in the ALPL gene, which encodes alkaline phosphatase (ALP). Patients with severe HPP develop bone impairment and have extremely low levels of ALP activity, an enzyme necessary for bone mineralization.

Although there are mild and more severe forms, severe hypophosphatasia prevents proper bone mineralization during perinatal development. When the disease develops perinatally, many infants are still-born, with little evidence of bone mineralization. HPP can also appear in later infancy, generally before an infant reaches the age of six months, with the result that most afflicted infants do not live past the age of six months. Milder forms of HPP can present in later youth or in adulthood.

"Mesenchymal stem cells (MSCs) reside in bone marrow and other tissues and have a self-renewal capacity so that after transplantation they can differentiate into various cell lineages, including bone and cartilage," said Dr. Takeshi Taketani of the Division of Blood Transfusion at Shimane University Hospital in Shimane, Japan. "We performed multiple infusions of MSCs for two infant patients with severe HPP who had already undergone BMT. The adverse events from the BMT were managed and there were no adverse events from the MSC infusions."

After each infant had undergone BMT, one infant received four MSCTs and a second infant received nine MSCTs. Previous research had revealed that MSCT without a prior BMT was ineffective.

The researchers reported that the two infants receiving both BMT and MSCTs improved not only in terms of bone mineralization, but also saw improvements in muscle mass, respiratory function and mental development. Both children continue to survive at age three.

"Our data suggest that allogenic MSCT combined with BMT might be one of the safer and more effective remedies for patients with severe HPP, although long-term effectiveness remains unknown and warrants further study," concluded the researchers. "We need to establish curative, MSC-based treatment strategies that can maintain the long-term survival and differentiation capabilities of transplanted allo-MSCs."

"This study highlights the promise of stem cells in presenting a new frontier for regenerative medicine, with an improvement of HPP-associated symptoms and survival following BMT and MSCT." said Dr. David Eve, Cell Transplantation associate editor, and Instructor of neurosurgery and brain repair at the University of South Florida School of Medicine. "In order to elucidate the mechanisms behind recovery and further extrapolate the study to all HPP patients, a larger cohort and more long term follow-up are needed."

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Infants with rare bone disease improve bone formation after cell transplantation

Registries seek to match donors with rising marrow demand

By Stem Cell Doctors

WATERTOWN, Conn. (AP) - A year ago, Nancy Demers, 71, was diagnosed with myelodysplastic syndrome, a deficiency in the bone marrow. The disease can eventually become leukemia.

Its treated as if it were cancer but there is no cure for it, said her son, Scott Demers.

Now Nancy Demers has a new chance at life, thanks to advances in bone marrow stem cell transplants.

If I didnt do this, once I went out of remission - its not if, its when - I would go into acute leukemia and there will be nothing there to help me, Nancy Demers said. This will save my life and give me time.

Demers is one of a rapidly growing number of people looking to depend on strangers to donate marrow since she doesnt have a match within her family.

The rising number of patients seeking bone marrow has created new demands on registries that seek to match patient needs with willing donors.

Each sibling has a 25 percent chance of being a transplant match, according to Dr. Joseph Antin, chief and program director of the adult stem cell transplantation program at Dana Farber Brigham and Womens Hospital in Boston.

In the United States, about 30 percent of patients find a donor within their family, according to Be the Match. Those who dont must turn to international registries to find an unrelated donor.

Around 15 years ago, doctors couldnt do a transplant on anyone over the age of 50, according to Dr. Leslie Lehmann, clinical director of the Stem Cell Transplant Center at Dana Farber.

Its a big stress on the body, Lehmann said.

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Registries seek to match donors with rising marrow demand

Helping a little boy live life to the Max

By Stem Cell Doctors

By Andrew MeenahanFeb. 10, 2015, 10 a.m.

He has already beaten the odds by defying death, but the next year is just as critical for young Max McIntyre.

Max McIntyre ... before he lost his sight he was drawn to things yellow.

HE has already beaten the odds by defying death for 12 long months since suffering severe brain damage and blindness from bacterial meningitis, but the next year is just as critical for young Max McIntyre.

Maxs story has brought out the best in people across western NSW as his parents Amy and Rob and friends such as Bathursts Paul Twohill have harnessed the power of social media in a fundraising campaign they hope will save and improve the quality of his life.

Rob and Amy are fighting on two fronts.

The fundraising challenge is daunting they need at least $100,000 for stem cell treatment to help improve Maxs quality of life. But at least that is clear cut.

On the other battle front, the couple is desperately trying to find out if this treatment can even be performed and if anyone, anywhere, will do it for them.

Where do you even start to research this information? Google? Asking doctors? Trying to contact researchers?

They soon discovered no one performs the surgery in Australia and have tentatively narrowed it down to London, Philadelphia and Toronto but the complications and hurdles involved with such a procedure are daunting.

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Helping a little boy live life to the Max

Human skin may harbor obesity cure

By Stem Cell Medical Center

Researchers have recently converted human skin cells into appetite controlling neurons for the first time ever, which might eventually provide obesity cure.

The study, led by researchers at Columbia University Medical Center (CUMC) and at the New York Stem Cell Foundation (NYSCF), found that cells provided individualized model for studying obesity and testing treatments.

To make the neurons, human skin cells were first genetically reprogrammed to become induced pluripotent stem (iPS) cells. Like natural stem cells, iPS cells are capable of developing into any kind of adult cell when given a specific set of molecular signals in a specific order.

The iPS cell technology has been used to create a variety of adult human cell types, including insulin-producing beta cells and forebrain and motor neurons.

The CUMC/NYSCF team determined which signals are needed to transform iPS cells into arcuate hypothalamic neurons, a neuron subtype that regulates appetite. The transformation process took about 30 days.

The neurons were found to display key functional properties of mouse arcuate hypothalamic neurons, including the ability to accurately process and secrete specific neuropeptides and to respond to metabolic signals such as insulin and leptin.

The study is published in the Journal of Clinical Investigation. (ANI)

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Human skin may harbor obesity cure

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