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Free fatty acids (FFAs) exert both positive and negative effects on beta cell survival and insulin secretory function, depending on concentration, duration, and glucose abundance. Lipid signals are mediated not only through metabolic pathways, but also through cell surface and nuclear receptors. Toxicity is modulated by positive signals arising from circulating factors such as hormones, growth factors...
Epstein-Barr virus (EBV) is associated with a number of human malignancies. In vitro EBV infection transforms human lymphocytes into proliferating cell lines (EBV-lymphocytes). Etoposide, topoisomerase II inhibitor, induced apoptosis in EBV-lymphocytes as shown by expression of phosphatidylserine, loss of DNA and mitochondrial membrane potential, and cell shrinkage. In contrast, those cells, which...
Abstract. Animal cells are widely used in industrial processes as sophisticated cell factories to obtain a high number of complex proteins with correct post-translation modifications and biological activity, with many applications in diagnostic and therapeutic uses. However, from the bioprocess point of view these are still sub-optimal processes, mainly due to the complex requirements for the in vitro...
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