http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Is the indefinite expansion of adult cells possible without recourse to stem cell intermediates? The team led by Michael Sieweke at the Centre d'immunologie de Marseille Luminy, France has proved that this is the case by achieving the ex vivo regeneration for several months of macrophages, specialized cells in the immune system. Published in Science on November 6, 2009, this discovery could be applied to other cell types. http://www.physorg.com/news177618528.html Biology Mon, 16 Nov 2009 20:30:01 EST news177618528 The search for the holy grail of regenerative medicine -- the ability to "grow back" a perfect body part when one is lost to injury or disease -- has been under way for years, yet the steps involved in this seemingly magic process are still poorly understood. http://www.physorg.com/news176398617.html Biology Mon, 02 Nov 2009 15:39:16 EST news176398617 For the first time, scientists in the McEwen Centre for Regenerative Medicine, University Health Network have successfully used gene therapy to repair injured human donor lungs, making them potentially suitable for transplantation into patients. This technique could significantly expand the number of donor lungs by using organs that are currently discarded, and improve outcomes after transplantation. http://www.physorg.com/news175960285.html Medicine & Health Wed, 28 Oct 2009 14:53:16 EST news175960285 Scientists have for the first time produced liver cells from adult skin cells using the induced pluripotent stem cell (iPSC) technology. http://www.physorg.com/news175259173.html Medicine & Health Tue, 20 Oct 2009 12:20:01 EST news175259173 Globs of human fat removed during liposuction conceal versatile cells that are more quickly and easily coaxed to become induced pluripotent stem cells, or iPS cells, than are the skin cells most often used by researchers, according to a new study from Stanford's School of Medicine. http://www.physorg.com/news171559240.html Biology Mon, 07 Sep 2009 16:21:07 EST news171559240 A tissue-repair-and-regeneration pathway in the human body, including wound healing, is essential for the early lung to develop properly. Genetically engineered mice fail to develop lungs when two molecules in this pathway, Wnt2 and Wnt2b, are knocked out. The findings are described this week in Developmental Cell. http://www.physorg.com/news169741332.html Biology Mon, 17 Aug 2009 15:50:02 EST news169741332 Researchers at Stanford University School of Medicine have discovered, for the first time, a common molecular pathway that is used by both normal stem cells and cancer stem cells when they reproduce themselves. http://www.physorg.com/news168791714.html Medicine & Health Thu, 06 Aug 2009 16:00:01 EST news168791714 (PhysOrg.com) -- Harvard Stem Cell Institute researchers at Massachusetts General Hospital have identified the earliest master human heart stem cell from human embryonic stem cells - ISL1+ progenitors - that give rise to a family of cells that form the essential portions of the human heart. http://www.physorg.com/news165680045.html Medicine & Health Wed, 01 Jul 2009 15:14:48 EST news165680045 Scientists working at the Carnegie Institution's Department of Embryology, with colleagues, have overturned previous research that identified critical genes for making muscle stem cells. It turns out that the genes that make muscle stem cells in the embryo are surprisingly not needed in adult muscle stem cells to regenerate muscles after injury. http://www.physorg.com/news165144902.html Biology Thu, 25 Jun 2009 10:35:26 EST news165144902 New treatments for the devastating Parkinson's disease and ALS are in clinical studies in Sweden, thanks to breaking new stem cell research. This news was presented today by Dr. Jonas Frisen, Professor of stem cell research at Karolinska Institutet, at the world's largest biotech convention, BIO 2009 in Atlanta. http://www.physorg.com/news162130324.html Medicine & Health Thu, 21 May 2009 13:12:49 EST news162130324 Even cells aren't immune to peer pressure. Scientists at the Stanford University School of Medicine have now shown that skin cells can be coaxed to behave like muscle cells -- and muscle cells like skin cells -- solely by altering who they hang out with: the relative levels of the ingredients inside the cell. http://www.physorg.com/news160754538.html Biology Tue, 05 May 2009 15:02:52 EST news160754538 (PhysOrg.com) -- Bioengineers at UC San Diego have developed a breakthrough method for sequencing-based methylation profiling, which could help fuel personalized regenerative medicine and even lead to more efficient and cost-effective methods for studying certain diseases. http://www.physorg.com/news159643088.html Biology Wed, 22 Apr 2009 18:19:15 EST news159643088 In a study to be released on March 1, 2009, Mount Sinai Hospital's Dr. Andras Nagy discovered a new method of creating stem cells that could lead to possible cures for devastating diseases including spinal cord injury, macular degeneration, diabetes and Parkinson's disease. The study, to be published by Nature online, accelerates stem cell technology and provides a road map for new clinical approaches to regenerative medicine. http://www.physorg.com/news155138024.html Biology Sun, 01 Mar 2009 13:54:22 EST news155138024 Stem cells of any kind are defined by their eternal nature, reproducing themselves and providing a pool of cells from which more differentiated tissues arise. http://www.physorg.com/news153059571.html Biology Thu, 05 Feb 2009 12:33:13 EST news153059571 "There are still a number of major hurdles in the path of stem cell research today that are preventing the routine application of the technology in regenerative medicine." So say UK scientists writing in a forthcoming issue of the International Journal of Biotechnology. http://www.physorg.com/news147094586.html Biology Fri, 28 Nov 2008 11:36:26 EST news147094586 Researchers at the University of Southern California (USC) have identified a novel mechanism in the regulation and differentiation of neural stem cells. http://www.physorg.com/news145539812.html Biology Mon, 10 Nov 2008 11:43:32 EST news145539812