Category Archives: Stem Cells

Nov. 26, 2014, 3:13 a.m.

It is hoped that a trial due to start next year, and involving about 20 Australian children with cerebral palsy, will show the benefits of using stem cells from their own umbilical cord blood to treat the condition.

About 20 Australian children with cerebral palsy will be infused with their own umbilical cord blood in a trial due to start next year, as physicians warn families against travelling overseas for experimental stem cell treatments.

The long-awaited Australian trial will provide some of the world's first evidence about the safety and effectiveness of using stem cells from umbilical cord blood to repair brain injury that leads to cerebral palsy.

Researchers are waiting on ethics approval for the trial which will provide treatment to families who have chosen to store their child's cord blood at private banks.

In some cases, children with cerebral palsy will be able to receive a sibling's cord blood if this is available.

Cerebral Palsy Alliance head of research Iona Novak said the study, led by the Murdoch Childrens Research Institute, will recruit children from around Australia who have access to privately banked cord blood.

Children aged one to 10 will receive infusions at private blood banks in Melbourne, Sydney and Brisbane, and will be assessed before and after the treatment to check for improvements.

Researchers will be unable to access cord blood from a public bank, which collects blood to treat blood disorders such as leukaemia and cannot be used for untested new therapies.

Associate Professor Novak said the trial was an important first step towards establishing whether stem cells could help repair the brain injury that leads to cerebral palsy, a series of disabilities associated with movement and posture.

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Stem cell trial to begin for children suffering from cerebral palsy

PUBLIC RELEASE DATE:

1-Dec-2014

Contact: Cara Martinez cara.martinez@cshs.org 310-423-7798 Cedars-Sinai Medical Center @cedarssinai

LOS ANGELES (Dec. 1, 2014) - Research scientists have developed a novel method to re-create brain and intestinal stem cells from patients who died decades ago, using DNA from stored blood samples to study the potential causes of debilitating illnesses such as inflammatory bowel disease.

The lab research, published in the journal STEM CELLS Translational Medicine, could yield new therapies for people who suffer from aggressive motor-neuron and gut-related conditions that proved fatal to the deceased patients who long-ago volunteered their blood samples.

"The potential implications of this research are vast," said Dhruv Sareen, PhD, the study's lead author, and assistant professor and director of the David and Janet Polak Foundation Stem Cell Core Laboratory in the Board of Governors Regenerative Medicine Institute.

By using a deceased patient's stored blood samples, Sareen and his colleagues found that they can develop stem cells known as iPSCs in a petri dish - essentially reanimating diseased cells from patients long after they have died.

This approach allows researchers to connect the dots between a deceased patient's symptoms, genetic information contained in DNA and the behavior of stem cells in the lab. This, in turn, enables investigators to study the biological mechanisms behind diseases and potentially design new therapies.

The technique also allows physicians to replace invasive biopsy procedures typically required of living patients to create iPSC cells.

"These novel developments allow us to create new lines of stem cells from literally millions of patient samples stored in large repositories," said Clive Svendsen, PhD, director of the Board of Governors Regenerative Medicine Institute. "Some of these deceased patients were diagnosed with rare and important diseases."

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Researchers recreate stem cells from deceased patients to study present-day illnesses

Dec. 2, 2014, 7:03 p.m.

University of Wollongong researchers are using living human stem cells to build brain tissue that could one day be used to treat neural diseases like schizophrenia and epilepsy.

Stem cell expert Professor Jeremy Crook is working on neural diseases. Picture: GREG TOTMAN

University of Wollongong researchers are using living human stem cells to build brain tissue that could one day be used to treat neural diseases like schizophrenia and epilepsy.

The practice is called disease modelling and is intended to offer a more relevant alternative to animal testing.

Stem cell expert Professor Jeremy Crook believes tissue in development at Innovation Campus' Australian Research Council Centre of Excellence for Electromaterials Science (ACES) is two to three years away from the point where it could be used to test drug compounds.

Researchers also hope to identify cells within the lab-born tissue that could be recruited by the brain and integrated into the site of an injury or disease.

"The other option might be to use these [systems] to optimise biomaterial medical devices that could be implanted and interact on the cells of the brain," Professor Crook said.

"For example, in the case of epilepsy ... normalising cell function to prevent the onset of a seizure and the same with schizophrenia - you might be able to prevent the onset of a schizophrenic episode."

The tissue is made using natural stem cells applied through a 3D printer.

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Stem cell modelling to aid schizophrenia: UOW researchers

ACell + PRP Stem Cell Hair Regrowth Treatment | Houston Hair Surgeon Dr. Dan McGrath
http://mcgrathmedical.com Dr. Dan McGrath performs ACell Hair Regrowth Injection Therapy with adult stem cells from the patient #39;s own platelet rich plasma or PRP. Broadcast on MY FOX TV - Houston.

By: McGrath Medical

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ACell + PRP Stem Cell Hair Regrowth Treatment | Houston Hair Surgeon Dr. Dan McGrath - Video

Q A Jeunesse LUMINESCE with Dr Nathan Newman TQnvZgn J2w
Dr. Nathan Newman answers questions how adult stem cells are revolutionizing medicine and how they #39;re already being used in treatment of cosmetic and reconstructive to rejuvenate damaged tissues ...

By: Credo

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Q&A Jeunesse LUMINESCE with Dr Nathan Newman TQnvZgn J2w - Video

A decade ago, a dream team of researchers from Pittsburgh to South Korea claimed a medical invention that promised to reshape a culture war.

The scientists said they custom-designed stem cells from cloned human embryos. The scientific breakthrough was celebrated around the globe.

Then the bottom fell out.

A scandal erupted over fabricated data, and University of Pittsburgh biologist Gerald Schatten was forced to pull back the findings. Critics cast the 2004 discovery as a farce, a high-profile fraud that forced the journal Science into a rare retraction in January 2006.

Eight years later, the push to use stem cells as a medical treatment continues, but scholars balk at the suggestion that anyone is trying to make genetically identical individuals.

We're not here to clone human beings, for gosh sakes, said John Gearhart, a stem cell researcher and University of Pennsylvania professor in regenerative medicine. Instead, he said, scholars are working to manipulate stem cells to produce heart cells for cardiac patients, brain cells for neurological patients and other custom transplants that could match a person's genetic makeup.

Schatten's work continues at the Magee-Womens Research Institute at Pitt, where university officials cleared him of scientific misconduct, and he remains a vice chairman for research development. He focuses on educating and training physician-scientists and other scientists, a school spokeswoman wrote in a statement. She said Schatten was traveling and was unable to speak with the Tribune-Review.

Researchers have turned the onetime myth of developing stem cells into reality.

At the Oregon Health and Science University, researchers succeeded by blending unfertilized human eggs with body tissue to mold stem cells. Scholars say the cells could let doctors grow customized organs for transplants and other therapies.

The approach engineered by biologist Shoukhrat Mitalipov's research team last year in Portland is among two that scientists are using to forge laboratory-made stem cells the so-called master cells that can transform into other body parts without relying on donated human embryos. Federal law tightly controls the use of taxpayer money for embryonic research.

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Advances reshape stem cell research

Stem Cells Repair All Body Organs
World #39;s First - Stem Cell Enhancer.

By: Dave W Easter

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Stem Cells Repair All Body Organs - Video

Researchers from the University of Dresden have usedembryonic stem cells to grow an intact spinal cord in a petri dish, the team reported this week. Its an enormous achievement in a field that has long viewed neural tissue as the ultimate challenge, and one which could give hope to millions of people suffering fromspinal cord injuries.

Neurons, the cells that form the thinking matrix of your brain and carry its orders to the rest of your body, are very difficult to grow. For a long time growing neurons was thought to be impossible, but then it was discovered that olfactory neurons regrow. This is why you can lose your sense of smell for a few days then slowly regain it; the neuron ends, basically open-ended synapses facing into your nasal cavity, areburned away by corrosive smells, butslowly growback. Intense study followed this discovery, as scientists tried to track down how our olfactory neurons regrow, and others packed them directly into severed spinal cords with real success. In the image above, olfactory neurons have granted a lab rat regains some ability to walk again after being paralyzed (though to be fair, those same researchers are the ones who paralyzed it).

Even if you can grow one, the spinal cord still needs to form connections with an incredible number of body parts.

Now, rather than trying toforceour spinal neurons to act like nasalones, this German teammay have a way of making new ones from scratch. Certain diseases and massive injuries could easily render a spine beyond all hope of repair, but in such a situation a full replacement might still work. Remember, though, that one of the reasons neurons are hard to work with is that they must form complex synaptic connections with other neurons to work properly; just growing the spinal cord is only half the battle, and the patients body still has to accept the new routing hardware and integrate it properly.Still, even just the ability to closelyobserve the growth ofa full spinal cord could move neuronal research forward by leaps and bounds.

This technique worked essentially by letting the stem cells go to work and getting as far out of the way as possible; rather than introducing some novel new growth factor, the researchers basically just created an environment where the spine could grow just like it would in a body. Their setup involved inserting small bubbles of stem cells into a nutrient-rich growth mediumand letting them go from there.Given all the opportunities they required, the cells naturally started coordinating andshuntinggrowth factors around most notably the trio of hedgehog signaling molecules.

The teams diagram shows inserted ESC colonies growing into larger cysts which eventually associate.

The most famous of the three-member band, both for its name and its function, is Sonic Hedgehog, which can stimulate directed neuron growth through itsconcentration gradient. A high concentration of Sonic Hedgehog leads the cord to growmotor neurons tocarry the brains muscular commands, while a lower concentration near the top of the cord will lead to interneurons that wire up the spine itself. This is roughly analogous to growth factors in trees, where the widen the trunk molecule is made at the bottom and ferried up, and the split the trunk into branches molecule is made at the top and ferried down; the two opposing concentration gradients lead to the tree-shaped trees we all know so well, with branches becoming less common toward the bottom, where trunk-width takes priority.

In this case, the stem cells and spinal cord were froma mouse, which allowed for lower cost and ethical considerations, butthe principles of growth and signaling should bethe same. This technique made use of embryonic stem cells (ESCs), which in humans must be collected from fertility clinics and similar, but the ultimate human progenitor cell might not be necessary to further research. As scientists come to understand the mechanics of this breakthrough better, and replicate its results a few more times, it would presumably become possible to begin thisprocesswithinduced stem cells made from adult tissue. If not, this will remain an interesting research tool with little real-world applicabilitydue to the costs and regulatory problemswith ESCs.

Star Trek had a spinal transplant episode but even in the 24th century, its an experimental procedure.

Lab-grown organs are coming far, fast. Somewhere in the world today there are gel baths and petri dishes growing human bladders, eyes, and penises, esophagi, livers, and breasts. Even the quest for lab grown meatfalls under the same basic research umbrella, as scientists use similartechniques to create high quality chicken andbovine skeletal muscle. As with this spinal cord, each of these areas of research is trying to create laboratory conditions that perfectly mimic the body, so cells grow and develop normally.

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Spinal cord has successfully been grown in a lab

New research has found evidence that stem cells could be used to correct genetic defects in skin and to treat certain rare diseases.

Three separate studies by scientists in the US, Europe and Japan have raised hopes that the methods could be used to develop treatments for a range of problems, including epidermolysis bullosa.

It is a disorder wheresufferers are born with extensive blistering and patches of missing skin.

They areleft with extremely fragile skin for all of their lives.

In the first study, the researchers used Induced Pluripotent Stem Cells (iPSCs) - adult cells that are reprogrammed to an embryonic stem cell-like state.

The scientists took diseased cells from three adult patients withepidermolysis bullosa.

The researchers converted the cells into iPSCs and used specialist tools to edit and fix the mutation in the genetic code responsible for defective collagen protein production, which causes the condition.

They then grew pieces of human skin that produced the correct collagen, and grafted them into mice where they lasted for three weeks.

It i's hoped the risk of rejection in humans will be minimal because the skin is made from the patient's own cells.

A second study confirmed these findings in the lab, showing that it is possible to genetically correct iPSCs from mice with epidermolysis bullosa and use the repaired cells to heal blistered skin.

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Scientists use stem cells to correct skin defects

PUBLIC RELEASE DATE:

26-Nov-2014

Contact: Krista Conger kristac@stanford.edu 650-725-5371 Stanford University Medical Center @sumedicine

Induced pluripotent stem cells made from patients with a form of blistering skin disease can be genetically corrected and used to grow back healthy skin cells in laboratory dishes, researchers at the Stanford University School of Medicine have found. They've termed the new technique "therapeutic reprogramming."

The skin cells formed normal human skin when grafted onto the backs of laboratory mice, they said.

The findings represent a major advance in the battle against the disease, epidermolysis bullosa, in which the top layer of skin, called the epidermis, sloughs off with the slightest friction, leaving open wounds that are difficult to heal. Severely stricken children who survive into their late teens or early 20s often die from invasive squamous cell carcinoma, a skin cancer that can arise during repeated cycles of skin wounding and healing.

"Epidermolysis bullosa is a truly horrible, debilitating skin disease in which the top layer of skin is not properly anchored to the underlying layers," said Anthony Oro, MD, PhD, professor of dermatology. "When they are born, the trauma of birth rips away their skin, and they continue to suffer severe skin wounds that require constant bandaging and medical attention throughout their lives."

Stanford has one of the largest epidermolysis bullosa clinics in the world, with an extremely active and engaged population of patients and their families eager to help researchers. The Stanford Department of Dermatology has been working to find new treatments for the disease for over 20 years. The latest advance, in which researchers replaced the mutated, disease-causing gene in the donor-made induced pluripotent stem cells with a healthy version, was funded by an $11.7 million grant from the California Institute for Regenerative Medicine.

New avenue of treatment

"This treatment approach represents an entirely new paradigm for this disease," Oro said. "Normally, treatment has been confined to surgical approaches to repair damaged skin, or medical approaches to prevent and repair damage. But by replacing the faulty gene with a correct version in stem cells, and then converting those corrected stem cells to keratinocytes, we have the possibility of achieving a permanent fix -- replacing damaged areas with healthy, perfectly matched skin grafts."

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Blistering skin disease may be treatable with 'therapeutic reprogramming,' researchers say