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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 Am+J+Reprod+Immunol
2017 ; 78
(1
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
PAI-1 in granulosa cells is suppressed directly by statin and indirectly by
suppressing TGF-? and TNF-? in mononuclear cells by insulin-sensitizing drugs
#MMPMID28337819
Yamada-Nomoto K
; Yoshino O
; Akiyama I
; Iwase A
; Ono Y
; Nakamura T
; Harada M
; Nakashima A
; Shima T
; Ushijima A
; Osuga Y
; Chang RJ
; Shimasaki S
; Saito S
Am J Reprod Immunol
2017[Jul]; 78
(1
): ä PMID28337819
show ga
PROBLEM: Plasminogen activator inhibitor-1 (PAI-1) is elevated in women with
polycystic ovary syndrome (PCOS), but the regulation in granulosa cells (GCs) is
unclear. METHOD OF STUDY: PAI-1 expression in PCOS ovaries was investigated
immunohistologically. PAI-1 expressions in HGrC1, a human GC cell line, were
investigated at mRNA and activity levels. The expressions of TGF-? and TNF-? in
peritoneal fluid mononuclear cells (PFMCs) were measured with quantitative PCR.
RESULTS: Little PAI-1 expression is observed in healthy GCs, whereas GCs of PCOS
and atretic follicle exhibit distinct expression in vivo. In vitro study using
HGrC1 shows that TGF-? and TNF-? increase PAI-1 mRNA and its activity, and both
together exhibit a synergistic effect. The expression of PAI-1 mRNA is suppressed
by simvastatin. Moreover, insulin-sensitizing drugs (metformin, pioglitazone, and
rosiglitazone) suppress LPS-induced TGF-? and TNF-? mRNA expression in PFMC.
CONCLUSION: Statin and insulin-sensitizing drugs may provide a potential therapy
for PCOS via down-regulation of PAI-1 expression in GCs and down-regulation of
TGF-? and TNF-? expression in PFMC, respectively.