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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
2015 ; 19
(9
): 2215-31
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Astaxanthin prevents pulmonary fibrosis by promoting myofibroblast apoptosis
dependent on Drp1-mediated mitochondrial fission
#MMPMID26119034
Zhang J
; Xu P
; Wang Y
; Wang M
; Li H
; Lin S
; Mao C
; Wang B
; Song X
; Lv C
J Cell Mol Med
2015[Sep]; 19
(9
): 2215-31
PMID26119034
show ga
Promotion of myofibroblast apoptosis is a potential therapeutic strategy for
pulmonary fibrosis. This study investigated the antifibrotic effect of
astaxanthin on the promotion of myofibroblast apoptosis based on dynamin-related
protein-1 (Drp1)-mediated mitochondrial fission in vivo and in vitro. Results
showed that astaxanthin can inhibit lung parenchymal distortion and collagen
deposition, as well as promote myofibroblast apoptosis. Astaxanthin demonstrated
pro-apoptotic function in myofibroblasts by contributing to mitochondrial
fission, thereby leading to apoptosis by increasing the Drp1 expression and
enhancing Drp1 translocation into the mitochondria. Two specific siRNAs were used
to demonstrate that Drp1 is necessary to promote astaxanthin-induced
mitochondrial fission and apoptosis in myofibroblasts. Drp1-associated genes,
such as Bcl-2-associated X protein, cytochrome c, tumour suppressor gene p53 and
p53-up-regulated modulator of apoptosis, were highly up-regulated in the
astaxanthin group compared with those in the sham group. This study revealed that
astaxanthin can prevent pulmonary fibrosis by promoting myofibroblast apoptosis
through a Drp1-dependent molecular pathway. Furthermore, astaxanthin provides a
potential therapeutic value in pulmonary fibrosis treatment.