Quality control for adult stem cell treatment
HEIDELBERG, 27 February 2015 – A team of European researchers has devised a strategy to ensure that adult epidermal stem cells are safe before they are used as treatments for patients. The approach involves a clonal strategy where stem cells are collected and cultivated, genetically modified and single cells isolated before being rigorously tested to make sure they meet the highest possible safety criteria. The strategy, which is published online in EMBO Molecular Medicine, is inspired by the approaches the biotechnology industry and regulatory affairs authorities have adopted for medicinal proteins produced from genetically engineered mammalian cells.
Scientists use tissue engineering to grow leg muscle
HEIDELBERG, 25 February 2015 – A team of researchers from Italy, Israel and the United Kingdom has succeeded in generating mature, functional skeletal muscles in mice using a new approach for tissue engineering. The scientists grew a leg muscle starting from engineered cells cultured in a dish to produce a graft. The subsequent graft was implanted close to a normal, contracting skeletal muscle where the new muscle was nurtured and grown. In time, the method could allow for patient-specific treatments for a large number of muscle disorders. The results are published in EMBO Molecular Medicine.
Anti-inflammatory drug counters obesity in mice
HEIDELBERG, 19 February 2015 – Obesity represents a global health problem with limited options available for its prevention or treatment. The finding that a key regulator of energy expenditure and body weight is controlled by a drug-targeted inflammatory enzyme opens new possibilities for pharmacologically modulating body weight. This is the conclusion of a study led by Toshihiro Nakajima of Tokyo Medical University in Japan, reported in The EMBO Journal.
Gut microbes trigger autoimmune disease later in life in mice
HEIDELBERG, 19 January 2015 – Researchers have revealed that the colonization of the gut of young mice by certain types of bacteria can lead to immune responses later in life that are linked to disease. Increases in the levels of segmented filamentous bacteria can trigger changes in the lymphoid tissue of the mouse gut that result in the production of antibodies that attack components of the cell nucleus. This type of damage is a hallmark of autoimmune diseases like systemic lupus erythematosus and systemic sclerosis where organs throughout the body are damaged by wayward immune responses. The findings are published in The EMBO Journal.
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