analysis defined the YFP-positive cells as a subset of the neutrophil population. Using real-time confocal imaging we demonstrate that these cells migrate to sites of inflammation and are involved in innate immune responses towards infections, including Mycobacterium marinum-induced granuloma GW4869 in vivo formation. (C) 2007 Elsevier Ltd. All rights reserved.”
“Although the tumor Suppressor protein p53 is important in the control of various cellular activities, the analysis of p53 in the porcine model has been hampered by a lack of a suitable antibody that is specific for porcine p53. Using a recombinant porcine p53, we generated a rabbit polyclonal antibody (designated SH0797) that is directed against porcine p53. The results of the study show that the antibody is capable of
detecting recombinant p53 protein expressed in Escherichia coli, as well as FLAG-tagged p53 that is expressed ill ill, transfected cells, This demonstrates that the antibody is specific for the porcine p53 protein. The antibody also showed the ability to immunoprecipitate Caspase-independent apoptosis p53 protein from extracts of porcine cells and to cross-react with human p53 protein. In addition, expression of porcine p53 could be induced readily in porcine cells and detected using this new tool. I-his antibody is a useful tool for Use in studies of the cellular pathways that involve p53 in the porcine model. (C) 2008 Elsevier Inc. All rights reserved.”
“Stress granules (SGs) are cytoplasmic foci that rapidly form when cells are exposed to stress. They transiently store mRNAs encoding house-keeping
proteins and allow the selective translation of stress-response proteins (e.g. heat shock proteins). Besides mRNA, SGs contain RNA-binding proteins, such as T cell internal antigen-1 and poly(A)-binding protein 1, which can serve as characteristic SG marker proteins. Recently, some of these SG marker proteins were found to label pathological TAR DNA binding protein of 43kDa (TDP-43)- or fused in sarcoma (FUS)-positive cytoplasmic inclusions in patients with amyotrophic lateral sclerosis BX-795 purchase and frontotemporal lobar degeneration. In addition, protein aggregates in other neurodegenerative diseases (e.g. tau inclusions in Alzheimer’s disease) show a co-localization with T cell internal antigen-1 as well. Moreover, several RNA-binding proteins that are commonly found in SGs have been genetically linked to neurodegeneration. This suggests that SGs might play an important role in the pathogenesis of these proteinopathies, either by acting as a seed for pathological inclusions, by mediating translational repression or by trapping essential RNA-binding proteins, or by a combination of these mechanisms.