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2017 ; 8
(51
): 88586-88598
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gab.com Text
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English Wikipedia
SLC3A2, antigen of mAb 3G9, promotes migration and invasion by upregulating of
mucins in gastric cancer
#MMPMID29179459
Wang S
; Han H
; Hu Y
; Yang W
; Lv Y
; Wang L
; Zhang L
; Ji J
Oncotarget
2017[Oct]; 8
(51
): 88586-88598
PMID29179459
show ga
Solute carrier family 3 member 2 (SLC3A2) has been reported to be highly
expressed in a variety of carcinomas. However, the function of SLC3A2 in gastric
carcinoma (GC) has not been well explored. Monoclonal antibody (mAb) 3G9,
generated from immunogen of various human GC cell lines, has been shown to bind
to GC tissues specifically. In this study, we identified the target antigen of
mAb 3G9 as SLC3A2, and detected the expression profile of SLC3A2 in a panel of
gastric cancer cell lines and GC tumor tissues. We found that the increased
expression of SLC3A2 was associated with serosal invasion in GC patients.
Knockout of SLC3A2 suppressed the migration and invasion of BGC-823 cells in
vitro and in vivo, whereas overexpression of SLC3A2 in NCI-N87 cells promoted the
migration and invasion in vitro and in vivo. Mechanistic investigations suggested
that MUC1, MUC16 and MUC5B were the downstream genes of SLC3A2 in GC cells. Taken
together, our data suggested that SLC3A2 promoted the aggressive phenotype of GC
by upregulating several mucin genes expression and may serve as a potential
biomarker for diagnosis and target therapy.