Researchers develop new tool for gene delivery - air jordan 2010 sale
js”> BOSTON (January 27, 2010) — Researchers at Tufts University School of Medicine and the Sackler School of Graduate Biomedical Sciences at Tufts have developed a new tool for gene Christian Louboutin Pumps therapy that significantly increases... and cell, molecular, and developmental biology program faculties at the Sackler School of Graduate Biomedical Sciences at Tufts. Identifying effective carriers like PEG-POD brings us closer to gene therapy to protect the retinal cells from degeneration,” said senior author Rajendra Kumar-Singh, PhD, associate professor of ophthalmology and adjunct associate professor of... Kumar-Singh and colleagues used an in vivo model to compare the effectiveness of PEG-POD with two other carriers (PEG-TAT and PEG-CK30) and a control (injections of DNA alone). “We think the level of gene expression seen with PEG-POD may be enough to protect the retina from degeneration, slowing the progression of eye disorders and we have preliminary evidence that this is indeed the case,” said co-author Siobhan... While all three carriers delivered DNA to the retinal cells, PEG-POD was by far the most effective,” said first author Sarah Parker Read, an MD/PhD candidate at TUSM and Sackler and member of Kumar-Singh’s lab. Safe and effective delivery of therapeutic genes has been a major obstacle in gene therapy research. Because PEG-POD protects DNA from damage in the bloodstream, it may pave the way for gene therapy treatments that can be administered through an IV and directed to many other parts of the body,” said Kumar-Singh. The tool, a peptide called PEG-POD, provides a vehicle for therapeutic genes and may help researchers develop therapies for degenerative eye disorders such as retinitis pigmentosa and age-related macular degeneration. Deactivated viruses have frequently been used, but concerns about the safety of this method have left scientists seeking new ways to get therapeutic genes into cells. “For the first time, we have demonstrated an efficient way to transfer DNA into cells without using a virus, currently the most common means of DNA delivery. “Gene expression in specimens injected with PEG-POD was 215 times greater than the control. Many non-viral vectors for gene therapy have been developed but few, if any, work in post-mitotic tissues such as the retina and brain. “What makes PEG-POD especially promising is that it will likely have applications beyond the retina....



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