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2016 ; 14
(5
): 4638-4642
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Autophagy is involved in aldosterone?induced mesangial cell proliferation
#MMPMID27748808
Yang M
; Wang B
; Miao L
; Xu X
; He X
Mol Med Rep
2016[Nov]; 14
(5
): 4638-4642
PMID27748808
show ga
The aim of the present study was to investigate whether autophagy is involved in
aldosterone (Aldo)-induced mesangial cell (MC) proliferation. MCs were incubated
with 10?7 M Aldo for 24 h. Proliferation of MCs, and the underlying mechanisms,
were subsequently analyzed using [3H]thymidine assay, cell counting assay,
western blotting and RNA interference (RNAi). Aldo was revealed to induce
autophagy, as indicated by the increased conversion from microtubule?associated
protein 1A/1B?light chain 3 (LC3)?I to LC3?II, the increased expression levels of
autophagy?related gene 7 (Atg7) and the increased degradation of p62, which was
accompanied by MC proliferation. Notably, pharmacological inhibition of autophagy
or RNAi?mediated knockdown of Atg7 attenuated Aldo?induced MC proliferation,
suggesting that autophagy was at least partially responsible for this effect. The
results of the present study provided evidence that autophagy is critical for
regulating Aldo?induced MC proliferation.
|Aldosterone/administration & dosage
[MESH]
|Apoptosis/genetics
[MESH]
|Autophagy-Related Protein 7/antagonists & inhibitors/biosynthesis/*genetics
[MESH]