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2017 ; 37
(4
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Effects of RNA interference-mediated gene silencing of VEGF on the
ultrafiltration failure in a rat model of peritoneal dialysis
#MMPMID28733472
Wang ZK
; Wang ZX
; Liu ZY
; Ren YQ
; Zhou ZQ
Biosci Rep
2017[Aug]; 37
(4
): ä PMID28733472
show ga
We investigated the effects of RNAi-mediated gene silencing of vascular
endothelial growth factor (VEGF) on ultrafiltration failure (UFF) in rats with
peritoneal dialysis (PD). Sprague-Dawley (SD) male rats were classified into
normal, sham operation, and uremic model groups. Uremic rats were subcategorized
into uremia, PD2, VEGF shRNA-2, vector-2, PD2 + Endostar, PD4, VEGF shRNA-4,
Vector-4, and PD4 + Endostar groups. Peritoneal Equilibration Test (PET) was
conducted to assess ultrafiltration volume (UFV) and mass transfer of glucose
(MTG). mRNA and protein expressions of VEGF were detected using quantitative
real-time PCR (qRT-PCR) and Western blotting. Immunohistochemistry was performed
to detect microvessel density (MVD). Compared with the normal group, decreased
UFV and increased MTG were observed in rest of the groups. Compared with the
uremia group, UFV decreased, while MTG, expression of VEGFs, and number of new
blood capillaries increased in the PD2, Vector-2, PD4, and Vector-4 groups. The
PD4 and Vector-4 groups exhibited lower UFV and higher MTG than the PD2 group. In
the VEGF shRNA-2, PD2 + Endostar, VEGF shRNA-4, and in PD4 + Endostar group
increased UFV, reduced MTG and expression of VEGF, and decreased number of new
blood capillaries were detected. Compared with the PD4 group, in the VEGF shRNA-4
and PD4 + Endostar groups, UFV increased, MTG and expression of VEGF decreased,
and number of new blood capillaries reduced. VEGF expression was negatively
correlated with UFV, but positively correlated with MTG. The results obtained in
the study revealed that down-regulation of VEGF by RNAi could be a novel target
approach for the treatment of UFF.