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2015 ; 5
(ä): 16859
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Peritoneal VEGF-A expression is regulated by TGF-?1 through an ID1 pathway in
women with endometriosis
#MMPMID26577912
Young VJ
; Ahmad SF
; Brown JK
; Duncan WC
; Horne AW
Sci Rep
2015[Nov]; 5
(ä): 16859
PMID26577912
show ga
VEGF-A, an angiogenic factor, is increased in the peritoneal fluid of women with
endometriosis. The cytokine TGF-?1 is thought to play a role in the establishment
of endometriosis lesions. Inhibitor of DNA binding (ID) proteins are
transcriptional targets of TGF-?1 and ID1 has been implicated in VEGF-A
regulation during tumor angiogenesis. Herein, we determined whether peritoneal
expression of VEGF-A is regulated by TGF-?1 through the ID1 pathway in women with
endometriosis. VEGF-A was measured in peritoneal fluid by ELISA (n = 16). VEGF-A
and ID1 expression was examined in peritoneal biopsies (n = 13), and primary
peritoneal and immortalized mesothelial cells (MeT5A) by immunohistochemistry,
qRT-PCR and ELISA. VEGF-A was increased in peritoneal fluid from women with
endometriosis and levels correlated with TGF-?1 concentrations (P < 0.05). VEGF-A
was immunolocalized to peritoneal mesothelium and TGF-?1 increased VEGFA mRNA (P
< 0.05) and protein (P < 0.05) in mesothelial cells. ID1 was increased in
peritoneum from women with endometriosis and TGF-?1 increased concentrations of
ID1 mRNA (P < 0.05) in mesothelial cells. VEGF-A regulation through ID1 was
confirmed by siRNA in MeT5A cells (P < 0.05). Our data supports role for ID1 in
the pathophysiology of endometriosis, as an effector of TGF?1 dependent
upregulation of VEGF-A, and highlights a novel potential therapeutic target.
|*Gene Expression Regulation/drug effects
[MESH]
|*Signal Transduction
[MESH]
|Ascitic Fluid/metabolism
[MESH]
|Cells, Cultured
[MESH]
|Endometriosis/*genetics/*metabolism
[MESH]
|Female
[MESH]
|Gene Knockdown Techniques
[MESH]
|Humans
[MESH]
|Inhibitor of Differentiation Protein 1/genetics/*metabolism
[MESH]