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2018 ; 17
(5
): 6441-6448
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Atorvastatin prevents glomerular extracellular matrix formation by interfering
with the PKC signaling pathway
#MMPMID29532876
Xiao YH
; He XY
; Han Q
; Yang F
; Zhou SX
Mol Med Rep
2018[May]; 17
(5
): 6441-6448
PMID29532876
show ga
Platelet-activating factor (PAF) promotes glomerular extracellular matrix (ECM)
deposition, primarily through activation of the protein kinase C (PKC) pathway.
The present study was designed to investigate whether atorvastatin, which
mediates a protective effect against glomerular ECM deposition and diabetic
neuropathy, may interfere with the PKC?transforming growth factor??1 (TGF??1)
pathway in a model of human mesangial cells (HMCs) exposed to a high glucose (HG)
and lysophosphatidylcholine (LPC) environment. HMCs were divided into three
treatment groups: Control, high glucose and lysophosphatidylcholine (HG+LPC), and
HG+LPC+atorvastatin. Cells were cultured for 24 h. The levels of the
ECM?associated molecules collagen IV (Col IV) and fibronectin (Fn) in the
supernatant were detected using an ELISA kit. PKC??1, TGF??1 and PAF?receptor
gene expression was detected by reverse transcription?quantitative polymerase
chain reaction. PKC??1 and TGF??1 protein expression was detected by western
blotting, and the subcellular localization of PKC??1 was assessed using
immunofluorescence. The results indicated that atorvastatin may reduce the
secretion of ECM components (Fn and Col IV) in HMCs in a HG and LPC environment,
by inhibiting the increase in PAF secretion and the activation of the PKC?TGF??1
signaling pathway.