Monthly Archives: February 2014

In Vitro Innovation: Testing Nanomedicine With Blood Cells On A Microchip

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Newswise Designing nanomedicine to combat diseases is a hot area of scientific research, primarily for treating cancer, but very little is known in the context of atherosclerotic disease. Scientists have engineered a microchip coated with blood vessel cells to learn more about the conditions under which nanoparticles accumulate in the plaque-filled arteries of patients with atherosclerosis, the underlying cause of myocardial infarction and stroke.

In the research, microchips were coated with a thin layer of endothelial cells, which make up the interior surface of blood vessels. In healthy blood vessels, endothelial cells act as a barrier to keep foreign objects out of the bloodstream. But at sites prone to atherosclerosis, the endothelial barrier breaks down, allowing things to move in and out of arteries that shouldnt.

In a new study, nanoparticles were able to cross the endothelial cell layer on the microchip under conditions that mimic the permeable layer in atherosclerosis. The results on the microfluidic device correlated well with nanoparticle accumulation in the arteries of an animal model with atherosclerosis, demonstrating the devices capability to help screen nanoparticles and optimize their design.

Its a simple model a microchip, not cell culture dish which means that a simple endothelialized microchip with microelectrodes can show some yet important prediction of whats happening in a large animal model, said YongTae (Tony) Kim, an assistant professor in bioengineering in the George W. Woodruff School of Mechanical Engineering at the Georgia Institute of Technology.

The research was published in January online in the journal Proceedings of the National Academy of Sciences. This work represents a multidisciplinary effort of researchers that are collaborating within the Program of Excellence in Nanotechnology funded by the National Heart, Lung, and Blood Institute, the National Institutes of Health (NIH). The team includes researchers at the David H. Koch Institute for Integrative Cancer Research at MIT, the Icahn School of Medicine at Mount Sinai, the Academic Medical Center in Amsterdam, Kyushu Institute of Technology in Japan, and the Boston University School of Medicine and Harvard Medical School.

Kim began the work as his post-doctoral fellow at the Massachusetts Institute of Technology (MIT) in the lab of Robert Langer.

This is a wonderful example of developing a novel nanotechnology approach to address an important medical problem, said Robert Langer, the David H. Koch Institute Professor at Massachusetts Institute of Technology, who is renowned for his work in tissue engineering and drug delivery.

Kim and Langer teamed up with researchers from Icahn School of Medicine at Mount Sinai in New York. Mark Lobatto, co-lead author works in the laboratories of Willem Mulder, an expert in cardiovascular nanomedicine and Zahi Fayad, the director of Mount Sinais Translational and Molecular Imaging Institute.

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In Vitro Innovation: Testing Nanomedicine With Blood Cells On A Microchip

stem cell therapy treatment for traumatic brain injury by dr alok sharma, mumbai, india – Video

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stem cell therapy treatment for traumatic brain injury by dr alok sharma, mumbai, india
improvement seen in just 5 days after stem cell therapy treatment for traumatic brain injury by dr alok sharma, mumbai, india. Stem Cell Therapy done date 7 ...

By: Neurogen Brain and Spine Institute

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stem cell therapy treatment for traumatic brain injury by dr alok sharma, mumbai, india - Video

Stem cell treatment: Controversial for humans, but not for pets

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PHOENIX, Ariz. -

Stem cell research and therapy on humans has traveled a long and often politically troubled path.

Not so for pets, where stem cell treatment has been used for nearly 10 years and now it is so routine, and so successful, it can be done in a day.

Ava is a 90 pound, 2-year-old Akita, who is about to undergo stem cell surgery. A little IV, a little anesthesia and Ava is out.

"It is used for arthritis mostly," said Dr. Velvet Edwards.

Ava is just beginning her day at Pecan Grove Veterinary Hospital in Tempe. Dr. Edwards oversees the stem cell procedure.

"Stem cells are healing cells, so they seek out area of injury damage or destruction," explained Edwards. "They accelerate healing and help the animal, the patient, the pet just use their own natural abilities to get better."

Veterinary stem cells are harvested from the animal's own fat cells. They are separated and processed by machinery right inside the vet's office and then injected back into the dog's trouble spots.

Thanks to new technology developed by Meti Vet, the process is completed in just a day.

"The pet comes in the morning, it's anesthetized and I collect about two to four grams of fat usually behind the shoulder blade," said Edwards. "Then I hand that fat over to my technicians to run it through a series of steps.. basically to dissolve the fat and get down to a little stem cell pellet... Then we take that pellet and we reconstitute it and make it injectable. I will put it back into the animal's body wherever I need it later that day."

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Stem cell treatment: Controversial for humans, but not for pets

TiGenix : reaches major cell therapy milestone with 1000th.

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REGULATED INFORMATION FEBRUARY 4, 2014

TiGenix reaches major cell therapy milestone with 1000th implant of ChondroCelect

Leuven (BELGIUM) - February 4, 2014 - TiGenix (NYSE Euronext: TIG), a leader in the field of cell therapy, announced today that it reached a major milestone with the performance of the 1000th ChondroCelect implantation for cartilage repair in the knee. ChondroCelect is the first cell therapy that was granted approval by the European Medicines Agency (EMA) as an Advanced Therapy Medicinal Product (ATMP). Today it is routinely used in orthopedic centers of excellence across several European countries.

"A 1000 patients have already benefited from this innovative therapy, further supporting its efficacy and safety profile," said Eduardo Bravo, CEO of TiGenix. "A milestone such as today's is a clear demonstration of how far the cell therapy field has progressed over recent years, and I have no doubt that it is on its way to become a mainstay in clinical practice. We will continue to work towards turning our ChondroCelect franchise into a cash flow positive asset, and to push the clinical development of our pipeline of stem cell programs to a successful conclusion."

About ChondroCelect An innovative treatment, ChondroCelect has been shown to result in long-term durable clinical benefits in patients with recent cartilage lesions. Five-year follow-up data confirm that the therapeutic effect and the clinical benefit of ChondroCelect gained over baseline is maintained up to at least five years after the cartilage repair intervention. In addition, the data confirm that early treatment with ChondroCelect results in a superior clinical benefit over microfracture, and a lower failure rate.

Cartilage lesions of the knee are a frequent cause of disability in the active population. Caused by repetitive microtraumata, or due to sports or traffic accidents, cartilage lesions rarely heal spontaneously. When untreated, they predispose to osteoarthritis, which causes disability and represents a major socioeconomic burden. A treatment that allows symptom relief and functional recovery is key. To meet this important medical need, TiGenix developed ChondroCelect, the first cell therapy that was granted approval by the EMA as an ATMP.

ChondroCelect is administered to patients in an autologous chondrocyte implantation procedure known as Characterized Chondrocyte Implantation. TiGenix has designed a sophisticated manufacturing process to preserve the cells' characteristics and biological activity, and to maintain their ability to produce high quality cartilage. This process meets the highest quality standards and has been approved by the EMA.

For more information: Eduardo Bravo Chief Executive Officer eduardo.bravo@tigenix.com

Claudia D'Augusta Chief Financial Officer claudia.daugusta@tigenix.com

About TiGenix

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TiGenix : reaches major cell therapy milestone with 1000th.