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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 Sci+Rep
2017 ; 7
(1
): 2229
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
HMGA2 promotes vasculogenic mimicry and tumor aggressiveness by upregulating
Twist1 in gastric carcinoma
#MMPMID28533522
Sun J
; Sun B
; Sun R
; Zhu D
; Zhao X
; Zhang Y
; Dong X
; Che N
; Li J
; Liu F
; Zhao N
; Wang Y
; Zhang D
Sci Rep
2017[May]; 7
(1
): 2229
PMID28533522
show ga
High mobility group protein A2 (HMGA2) is a transcription factor that plays an
important role in the invasion and metastasis of gastric carcinoma (GC). The term
vasculogenic mimicry (VM) refers to the unique ability of aggressive tumour cells
to mimic the pattern of embryonic vasculogenic networks. However, the
relationship between HMGA2 and VM formation remains unclear. In the present
study, we examined concomitant HMGA2 expression and VM in 228 human GC samples
and 4 GC cell lines. Our data indicate that HMGA2 is not only significantly
associated with VM formation but also influences the prognosis of patients with
gastric carcinoma. Overexpression of HMGA2 significantly increased cell motility,
invasiveness, and VM formation both in vitro and in vivo. A luciferase reporter
assay, Co-IP and ChIP demonstrated that HMGA2 induced the expression of Twist1
and VE-cadherin by binding to the Twist1 promoter. Moreover, we observed a
decrease in VE-cadherin following Twist1 knockdown in cells overexpressing HMGA2.
This study indicates that HMGA2 promotes VM in GC via Twist1-VE-cadherin
signalling and influences the prognosis of patients with GC.