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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Biochem+Biophys+Res+Commun
2014 ; 453
(3
): 326-31
Nephropedia Template TP
gab.com Text
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English Wikipedia
Inflammatory cytokines, interleukin-1 beta and tumor necrosis factor-alpha,
upregulated in glioblastoma multiforme, raise the levels of CRYAB in exosomes
secreted by U373 glioma cells
#MMPMID25261722
Kore RA
; Abraham EC
Biochem Biophys Res Commun
2014[Oct]; 453
(3
): 326-31
PMID25261722
show ga
In the brain, levels of inflammatory cytokines, interleukin-1 beta (IL-1?) and
tumor necrosis factor-alpha (TNF-?), are elevated under traumatic brain injury,
neuroinflammatory conditions and glioblastoma multiforme (GBM). In GBM, the
levels of small heat shock protein, CRYAB (HspB5) are also reported to be
elevated, where it has been shown to exert anti-apoptotic activity.
Interestingly, CRYAB is secreted via exosomes by various cells. In order to
understand the relation between inflammatory cytokines and CRYAB, U373 glioma
cells, were stimulated with proinflammatory cytokines, IL-1? and TNF-?, and their
effect on CRYAB levels in cells and secreted exosomes was studied. Our results
show that U373 cells produce and secrete CRYAB via exosomes and that stimulation
with IL-1? and TNF-? significantly increase the levels of CRYAB in not only the
cells but also in the secreted exosomes. In addition, cytokine stimulation of
U373 cells brings about changes in the secreted exosomal proteome, many of which
are involved in cancer progression.