Jackson Laboratory scientists have identified the adult lung stem cells p63+/Krt5+ as the specific cell line that specializes in lung regeneration. In an animal model, professors Frank McKeon, Ph.D. and Wa Xian, Ph.D. observed as the p63+/Krt5+, which typically mature into the lungs’ alveoli, responded to lung damage caused by the H1N1 influenza virus by migrating to the sites of inflammation and restoring the lost tissue.
In a recent update of an ongoing five year clinical trial conducted by the Chicago Blood Cancer Institute, patients with relapsing-remitting multiple sclerosis have experienced suppression of disease-related inflammation as a result of hematopoietic stem cell transplantations. The stem cells have the ability to regulate the autoimmune attack on the central nervous system, and have provided 82.8% of the patients with two years thus far of event-free disease remission.
New research from McGill University has shown that the bladder acellular matrix [BAM], or the external structure of connective tissue and growth factors that house the cellular components of the bladder, can serve as a scaffolding unit for mesenchymal stem cells [MSCs] to regenerate healthy bladder tissue. The stem cells receive growth factors from the BAM, which direct them to differentiate into new bladder cells that, when transplanted into an animal model, exhibit nearly 100% normal bladder capacity and function.
Researchers led by Eduardo Marbón of the Cedars-Sinai Heart Institute have developed a method to prolong the lives of patients with Duchenne Muscular Dystrophy [DMD] through the infusion of cardiac stem cells. The stem cells reverse the loss of cardiac muscle caused by the genetic disease, preventing heart failure that would otherwise limit a patient’s life expectancy to age 25.
Medical researchers from Keele University and Nottingham University have integrated remote controlled magnetic nanoparticles to incite the differentiation of stem cells into new bone tissue for the treatment of bone diseases, disorders, and injuries. In pre-clinical trials, the nanoparticles were coated with proteins that stimulate the stem cells, and then delivered directly to the damaged tissue via an external magnetic field.
According to a recent study conducted by scientists at the Harvard Stem Cell Institute, stem cells may hold the key to replacing the body’s unwanted storage of white fat cells with calorie-burning brown fat cells. The researchers studied the stem cells that typically mature into white fat cells, and, after screening the effects of 1000 compounds on the cells, they found two that stimulate the stem cells to differentiate into brown fat cells instead.
Scientists at the Cincinnati Children’s Hospital Medical Centre have induced adult stem cells to differentiate into small clusters of gastric tissue that replicate the functions of the human stomach. The lab-made structures, known as “mini-stomachs”, were created by replicating the chemical pathways of early stage stomach development of stem cells in a petri dish.
According to new research from the Stowers Institute for Medical Research, hematopoietic stem cells [stem cells that produce blood] are directly regulated by megakaryocytes, the blood cells responsible for healing wounds. The researchers found that megakaryotes produce two growth factors; one that signals for hematopoietic stem cells to proliferate, and one that keeps them in an inactive state. This relationship controls the amount of blood being produced in the body.
A team of researchers led by Professor Andrew Lotery at Southampton General Hospital have discovered a source of retinal stem cells on the surface of the eye. If scientists can harvest these readily accessible stem cells, convert them to light-sensitive cells, and then transplant them back into the eye, the cells could provide new treatments for age-related macular degeneration [AMD].
Researchers from the Cincinnati Children’s Hospital Medical Centre have successfully grown functional human intestinal tissues by utilizing stem cells. After stimulating the stem cells with a “molecular cocktail” of chemicals and growth factors, the team observed as the cells developed into the mucosal lining and muscle layers, while exhibiting digestive functions such as nutrient uptake and responding to molecular signals.
Topics: Gastrointestinal cancer, stemsaveblog, ulcerative colitis, Debilitating Diseases, Stemcells, Crohn's Disease, Thanksgiving, autologousstemcells, intestinal tissue, small intestine, Inflammatory Bowel Disease