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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 J+Cell+Mol+Med
2017 ; 21
(11
): 2909-2925
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gab.com Text
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Fibroblast growth factor 2 protects against renal ischaemia/reperfusion injury by
attenuating mitochondrial damage and proinflammatory signalling
#MMPMID28544332
Tan XH
; Zheng XM
; Yu LX
; He J
; Zhu HM
; Ge XP
; Ren XL
; Ye FQ
; Bellusci S
; Xiao J
; Li XK
; Zhang JS
J Cell Mol Med
2017[Nov]; 21
(11
): 2909-2925
PMID28544332
show ga
Ischaemia-reperfusion injury (I/RI) is a common cause of acute kidney injury
(AKI). The molecular basis underlying I/RI-induced renal pathogenesis and
measures to prevent or reverse this pathologic process remains to be resolved.
Basic fibroblast growth factor (FGF2) is reported to have protective roles of
myocardial infarction as well as in several other I/R related disorders. Herein
we present evidence that FGF2 exhibits robust protective effect against renal
histological and functional damages in a rat I/RI model. FGF2 treatment greatly
alleviated I/R-induced acute renal dysfunction and largely blunted I/R-induced
elevation in serum creatinine and blood urea nitrogen, and also the number of
TUNEL-positive tubular cells in the kidney. Mechanistically, FGF2 substantially
ameliorated renal I/RI by mitigating several mitochondria damaging parameters
including pro-apoptotic alteration of Bcl2/Bax expression, caspase-3 activation,
loss of mitochondrial membrane potential and K(ATP) channel integrity. Of note,
the protective effect of FGF2 was significantly compromised by the K(ATP) channel
blocker 5-HD. Interestingly, I/RI alone resulted in mild activation of FGFR,
whereas FGF2 treatment led to more robust receptor activation. More
significantly, post-I/RI administration of FGF2 also exhibited robust protection
against I/RI by reducing cell apoptosis, inhibiting the release of
damage-associated molecular pattern molecule HMBG1 and activation of its
downstream inflammatory cytokines such as IL-1?, IL-6 and TNF ?. Taken together,
our data suggest that FGF2 offers effective protection against I/RI and improves
animal survival by attenuating mitochondrial damage and HMGB1-mediated
inflammatory response. Therefore, FGF2 has the potential to be used for the
prevention and treatment of I/RI-induced AKI.