3 hours ago
What if repairing large segments of damaged muscle tissue was as simple as mobilizing the body's stem cells to the site of the injury? New research in mice and rats, conducted at Wake Forest Baptist Medical Center's Institute for Regenerative Medicine, suggests that "in body" regeneration of muscle tissue might be possible by harnessing the body's natural healing powers.
Reporting online ahead of print in the journal Acta Biomaterialia, the research team demonstrated the ability to recruit stem cells that can form muscle tissue to a small piece of biomaterial, or scaffold that had been implanted in the animals' leg muscle. The secret to success was using proteins involved in cell communication and muscle formation to mobilize the cells.
"Working to leverage the body's own regenerative properties, we designed a muscle-specific scaffolding system that can actively participate in functional tissue regeneration," said Sang Jin Lee, Ph.D., assistant professor of regenerative medicine and senior author. "This is a proof-of-concept study that we hope can one day be applied to human patients."
The current treatment for restoring function when large segments of muscle are injured or removed during tumor surgery is to surgically move a segment of muscle from one part of the body to another. Of course, this reduces function at the donor site.
Several scientific teams are currently working to engineer replacement muscle in the lab by taking small biopsies of muscle tissue, expanding the cells in the lab, and placing them on scaffolds for later implantation. This approach requires a biopsy and the challenge of standardizing the cells.
"Our aim was to bypass the challenges of both of these techniques and to demonstrate the mobilization of muscle cells to a target-specific site for muscle regeneration," said Lee.
Most tissues in the body contain tissue-specific stem cells that are believed to be the "regenerative machinery" responsible for tissue maintenance. It was these cells, known as satellite or progenitor cells, that the scientists wanted to mobilize.
First, the Wake Forest Baptist scientists investigated whether muscle progenitor cells could be mobilized into an implanted scaffold, which basically serves as a "home" for the cells to grow and develop. Scaffolds were implanted in the lower leg muscle of rats and retrieved for examination after several weeks.
Lab testing revealed that the scaffolds contained muscle satellite cells as well as stem cells that could be differentiated into muscle cells in the lab. In addition, the scaffold had developed a network of blood vessels, with mature vessels forming four weeks after implantation.
See original here:
Research in rodents suggests potential for 'in body' muscle regeneration
- More Stem Cells Extracted For Later Use For My MS - March 14th, 2011 [March 14th, 2011]
- Stem Cell Institute Panama City Panama - April 1st, 2011 [April 1st, 2011]
- Cells That Heal Us From Cradle To Grave: A Quantum Leap in Medical Science - April 8th, 2011 [April 8th, 2011]
- Macular Degeneration Improved With Stem Cells - April 8th, 2011 [April 8th, 2011]
- Stem Cell Therapy for Kidney Failure - April 15th, 2011 [April 15th, 2011]
- SIRA: Could Stem Cell Therapy Renew Your Body Cells? - April 22nd, 2011 [April 22nd, 2011]
- Stem Cell Therapy for Autism - May 20th, 2011 [May 20th, 2011]
- Stem Cell Therapy for Critical Limb Ischemia - May 21st, 2011 [May 21st, 2011]
- STEM CELLS FOR MACULAR DEGENERATION Sam Smith's story.wmv - May 21st, 2011 [May 21st, 2011]
- Stem Cell Therapy Success - May 21st, 2011 [May 21st, 2011]
- Doctors Use Stem Cells to Grow New Windpipes - May 21st, 2011 [May 21st, 2011]
- Dog Undergoes Stem Cell Therapy - May 23rd, 2011 [May 23rd, 2011]
- Stem Cell Therapy for Multiple Sclerosis - May 23rd, 2011 [May 23rd, 2011]
- Dogs now getting stem cell therapy - May 24th, 2011 [May 24th, 2011]
- Stem Cell Therapy for Rheumatoid Arthritis - May 30th, 2011 [May 30th, 2011]
- Stem Cell Therapy for Type II Diabetes - May 31st, 2011 [May 31st, 2011]
- Stem Cell Therapy for Cerebral Palsy - May 31st, 2011 [May 31st, 2011]
- Visions Episode 92: Stem Cells Discovery - May 31st, 2011 [May 31st, 2011]
- Stem Cell Therapy For Alzheimer's/Dementia - June 1st, 2011 [June 1st, 2011]
- Stem Cell Patient Richard H. MS Treatment - June 10th, 2011 [June 10th, 2011]
- Stem Cell Therapy Injections - June 12th, 2011 [June 12th, 2011]
- Stem Cells Used to Grow Windpipes - June 20th, 2011 [June 20th, 2011]
- Stem Cell Therapy for Stroke - Gary Steinberg, Stanford University - June 21st, 2011 [June 21st, 2011]
- Lou Gehrig's Disease (ALS): UCSD Team's Stem Cell Therapy Approach - June 23rd, 2011 [June 23rd, 2011]
- Stem Cell Therapy Cream: Less Wrinkles In 30 Days or Less Anti-Wrinkle Cream That Works - June 26th, 2011 [June 26th, 2011]
- Stem Cell Therapy for Spinal Cord Injury - Injured Airline Pilot Flies Again - June 27th, 2011 [June 27th, 2011]
- Clinical Advances in Adult Stem Cell Therapy: Dr. Jorge Paz - June 27th, 2011 [June 27th, 2011]
- Stem Cell Injection Treatment - Stem Cell Therapy - June 27th, 2011 [June 27th, 2011]
- Stem Cell Therapy MS: Sam Harrell and The Superbowl - June 27th, 2011 [June 27th, 2011]
- Documentary: Stem Cell Therapy for Muscular Dystrophy - Ryan Benton's Story - June 30th, 2011 [June 30th, 2011]
- Stem Cell Therapy--Hillcrest Animal Hospital - July 14th, 2011 [July 14th, 2011]
- WAVE3 News Adipose Stem Cell Therapy - July 20th, 2011 [July 20th, 2011]
- Lou Gehrig's Disease (ALS): Stem Cell Therapy - A Patient's Perspective - July 23rd, 2011 [July 23rd, 2011]
- University of Melbourne announce Stem Cells Discovery - July 28th, 2011 [July 28th, 2011]
- Stem Cell Therapy (Regenerative Medicine) in New Jersey - August 9th, 2011 [August 9th, 2011]
- Spinal Cord Injury - Stem Cell Therapy - August 9th, 2011 [August 9th, 2011]
- Dr. Craig Saunders Adult Stem Cell Therapy - August 9th, 2011 [August 9th, 2011]
- Embryonic stem cell therapy in China (www.esctherapy.com) - August 13th, 2011 [August 13th, 2011]
- Mesenchymal stem cells and marrow stromal cells - August 15th, 2011 [August 15th, 2011]
- Mesenchymal Stem Cells in Regenerative Medicine: Of Hopes and Challenges - August 15th, 2011 [August 15th, 2011]
- Cardiomyogenic differentiation of Mesenchymal Stem cells (KUM2/9-15c) - August 15th, 2011 [August 15th, 2011]
- SENS4 - Engineered Mesenchymal Stem Cells - The Road to Skeletal Tissue Regeneration (1/3) - August 15th, 2011 [August 15th, 2011]
- Mesenchymal stem cells and marrow stromal cells---2nd--- - August 15th, 2011 [August 15th, 2011]
- Cadiomyogenesis of human mesenchymal stem cells - August 15th, 2011 [August 15th, 2011]
- Mesenchymal Stem Cells Transplantation In Heart.wmv - August 15th, 2011 [August 15th, 2011]
- Ying Liu discusses IPS cell therapy for ALS - August 15th, 2011 [August 15th, 2011]
- Non-controversial Stem Cells: Rationale for Clinical Use: Neil Riordan, Ph.D. - Miami, FL - August 16th, 2011 [August 16th, 2011]
- From Surgical Repair to Stem Cell Repair: A Surgeon's Journey by Leonard Smith MD, FACS - August 16th, 2011 [August 16th, 2011]
- Bone Marrow Aspiration - Stem Cell Therapy - August 16th, 2011 [August 16th, 2011]
- Non-controversial Stem Cells: Rationale for Clinical Use - Dr. Neil Riordan - August 16th, 2011 [August 16th, 2011]
- TEDxSingapore - Susan Lim - Hype and hope of stem cell research - August 16th, 2011 [August 16th, 2011]
- Cryo-Lip Instruction Video.VOB.flv - August 16th, 2011 [August 16th, 2011]
- Stem Cells Repair Damaged Heart [7-07-2011] - August 16th, 2011 [August 16th, 2011]
- Andalusian Stem Cell Bank - August 16th, 2011 [August 16th, 2011]
- Adult Stem Cell Therapy Clinical Advances - Dr. Jorge Paz in San Diego, CA March 2011 - August 16th, 2011 [August 16th, 2011]
- Mesenchymal Stem Cells Drive New MS Study/Treatment - August 26th, 2011 [August 26th, 2011]
- Sims 2 Mafia Story Part 7 - Farewell, Godfather/Stem Cell Medicine - August 28th, 2011 [August 28th, 2011]
- STEM CELLS - Mesenchymal Stem Cells (Balzitt).flv - August 30th, 2011 [August 30th, 2011]
- Regenerative Medicine With Stem Cell Therapy Injections at an Arizona pain clinic (602) 507-6550 - September 3rd, 2011 [September 3rd, 2011]
- Stem Cell Research: Huntington's Disease - September 5th, 2011 [September 5th, 2011]
- Autism Stem Cell Trip - September 6th, 2011 [September 6th, 2011]
- Before/After Stem Cell for COPD: From Unable to Walk, to Dancing at My Daughter's Wedding - September 6th, 2011 [September 6th, 2011]
- Regenerative Medicine with Placenta Extracts and Stem Cell Therapies - Dr. Janethy Balakrishnan - September 6th, 2011 [September 6th, 2011]
- Stem Cells - September 6th, 2011 [September 6th, 2011]
- The Politics and Promise of Stem Cell Research - September 6th, 2011 [September 6th, 2011]
- Stem cell therapy in Guatemala - (closer than China) - September 7th, 2011 [September 7th, 2011]
- Stem Cell Therapy for Cerebral Palsy - Holly Catalano - September 9th, 2011 [September 9th, 2011]
- Clinical Advances in Adult Stem Cell Therapy - Dr. Jorge Paz Rodriguez (Miami) - September 9th, 2011 [September 9th, 2011]
- CryoLip Stem Cell Preservation - September 20th, 2011 [September 20th, 2011]
- Dr. Gonzalez tells his story of Stem Cell Treatment and Stem Cell Therapy - September 23rd, 2011 [September 23rd, 2011]
- A Three Minute Cell Passage - September 23rd, 2011 [September 23rd, 2011]
- Bone Marrow - Stem Cell Prolotherapy - September 23rd, 2011 [September 23rd, 2011]
- Stem Cell Therapy- Interview with Indian Surgeon - September 23rd, 2011 [September 23rd, 2011]
- Cryo-Lip.f4v - September 23rd, 2011 [September 23rd, 2011]
- CryoCord Corporate Video (2 Mins) - September 23rd, 2011 [September 23rd, 2011]
- SENS4 - Engineered Mesenchymal Stem Cells - The Road to Skeletal Tissue Regeneration (3/3) - September 23rd, 2011 [September 23rd, 2011]
- What are stem cells? - September 24th, 2011 [September 24th, 2011]
- Dental stem cell bank in Hyderabad - September 24th, 2011 [September 24th, 2011]
- Stem Cell Therapeutics: Tissue Regeneration - Christopher J. Centeno, MD - September 25th, 2011 [September 25th, 2011]
- Stem Cell Types and Sources - September 25th, 2011 [September 25th, 2011]