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2015 ; 7
(8
): 996-1003
Nephropedia Template TP
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H19 lncRNA alters stromal cell growth via IGF signaling in the endometrium of
women with endometriosis
#MMPMID26089099
Ghazal S
; McKinnon B
; Zhou J
; Mueller M
; Men Y
; Yang L
; Mueller M
; Flannery C
; Huang Y
; Taylor HS
EMBO Mol Med
2015[Aug]; 7
(8
): 996-1003
PMID26089099
show ga
Endometriosis affects approximately 15% of reproductive aged women and is
associated with chronic pelvic pain and infertility. However, the molecular
mechanisms by which endometriosis impacts fertility are poorly understood. The
developmentally regulated, imprinted H19 long noncoding RNA (lncRNA) functions to
reduce the bioavailability of microRNA let-7 by acting as a molecular sponge.
Here we report that H19 expression is significantly decreased in the eutopic
endometrium of women with endometriosis as compared to normal controls. We show
that decreased H19 increases let-7 activity, which in turn inhibits Igf1r
expression at the post-transcriptional level, thereby contributing to reduced
proliferation of endometrial stromal cells. We propose that perturbation of this
newly identified H19/Let-7/IGF1R regulatory pathway may contribute to impaired
endometrial preparation and receptivity for pregnancy in women with
endometriosis. Our finding represents the first example of a lncRNA-based
mechanism in endometriosis and its associated infertility, thus holding potential
in the development of novel therapeutics for women with endometriosis and
infertility.