نتایج جستجو برای: heat shock protein (hsp)
تعداد نتایج: 1481700 فیلتر نتایج به سال:
bacterial and viral triggers are suspected agents in the initial etiology of autoimmune diseases. there are some studies on the etiology of autoimmune disorders which have focused on streptococcal infection and a possible relation with microbial heat shock proteins (hsp) which show significant homology with human heat shock proteins. in addition, some serotypes of streptococci cross-react with ...
recombinant human interferon alpha 2a (rhifn α -2a) production and cell growth were monitored in a set of genetically modified e. coli strains (msd1519, msd1520, msd 1521, msd 1522, msd 1523) producing rhifn α -2a. the growth was followed at od 600 nm, changes in cell physiology were detected by pyrolysis mass spectrometry (pyms) of cell biomass and recombinant protein production was determined...
Background & Aim: Brucella is one of the most important zoonotic diseases and is caused by the members of Brucella genus especially B. melitensis. The bacteria begin to synthesize heat shock proteins(hsp) when facing elevated temperatures. In this investigation, clinical isolates of B. melitensis were subjected to heat shocks and the hsps produced were surveyed by SDS-PAGE electrophoresis. ...
Introduction: The present study aimed to explore protective mechanisms of hypothermia against mild cold and heat stress on highly proliferative homogeneous human Neural Precursor Cells (NPCs) derived from Subventricular Zone (SVZ) of human fetal brain. Methods: CD133+ve enriched undifferentiated and differentiated human NPCs were exposed to heat stress at 42°C. Then, Western-blot qua...
We investigated the expression of the rat hepatic heat-shock protein (hsp) genes under the influence of hepatocarcinogens and during hepatic regeneration. This was undertaken because of the inducibility of the heat-shock response in rat liver and because heat-shock genes can be expressed with or without heat shock in various cell states in a developmentally regulated manner. We found that acute...
Overexpression of heat shock protein 70 kDa alters the susceptibility of tumor cells to chemotherapeutic agents. We conducted experiments to study the regulation of expression of heat shock proteins (HSPs) in heat shock-treated T47-D cells, a human breast cancer cell line that expresses estrogen receptors. Cells exposed to heat shock at 44 degreesC displayed increased expression of heat shock p...
The family of small heat shock proteins is the more variable among the highly conserved superfamily of heat shock proteins (HSP). Using a metabolic labeling procedure with tissue explants, we have detected in chickens a new member of the small HSP family with an apparent molecular weight of 29-kDa. This protein was induced in broiler chickens' heart muscle and lungs following an in vivo heat st...
Bacterial and viral triggers are suspected agents in the initial etiology of autoimmune diseases. There are some studies on the etiology of autoimmune disorders which have focused on streptococcal infection and a possible relation with microbial heat shock proteins (hsp) which show significant homology with human heat shock proteins. In addition, some serotypes of streptococci cross-react ...
Heat shock factor-1 (HSF1) is a transcriptional factor that binds to heat shock elements located on the promoter region of heat shock protein genes. The purpose of this study was to further investigate the regulation of the expression of the heat shock protein-70 (HSP-70) gene. The HSF1 gene was inserted into pCDNA3 plasmid and then transfected into human epidermoid A431 cells using the CaOP3 m...
Cold storage and reperfusion injury to transplanted kidneys contributes to increased incidence of delayed graft function and may have a negative impact on graft survival. This study examined the mechanisms by which previous heat shock protects against cell death in an in vitro model of kidney storage. Cold storage is mimicked by incubating human renal proximal tubular epithelial (HK-2) cells in...
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