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2018 ; 8
(1
): 6265
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Aloperine Protects Mice against Bleomycin-induced Pulmonary Fibrosis by
Attenuating Fibroblast Proliferation and Differentiation
#MMPMID29674691
Yin W
; Han J
; Zhang Z
; Han Z
; Wang S
Sci Rep
2018[Apr]; 8
(1
): 6265
PMID29674691
show ga
Aloperine is a quinolizidine alkaloid extracted from Sophora alopecuroides. It
has been proven to alleviate oxidative stress and effectively promote tumor cell
apoptosis in mice. Herein, we investigated whether aloperine could also mediate
its protective effects on bleomycin (BLM)-induced pulmonary fibrosis.
Pathological staining, western blot, RT-PCR and flow cytometry were used to
evaluate the impact of aloperine on the development of pulmonary fibrosis. The
effect of aloperine on fibroblast proliferation, differentiation and related
signaling pathways were next investigated to demonstrate the underlying
mechanisms. In the present report, we showed that aloperine provided protection
for mice against BLM-induced pulmonary fibrosis as manifested by the attenuated
lung injury and reduced fibrosis along with alleviated fibroblast proliferation
and differentiation. Additionally, we provided in vitro evidence revealing that
aloperine inhibited cellular proliferation in PDGF-BB-stimulated mouse lung
fibroblasts by repressed PI3K/AKT/mTOR signaling and fibroblast to myofibroblast
differentiation by repressed TGF-?/Smad signaling. Overall, our data showed that
aloperine could protect the mice against BLM-induced pulmonary fibrosis by
attenuated fibroblast proliferation and differentiation, which indicated that
aloperine may be therapeutically beneficial for IPF patients.