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Decreased Dp71 expression is associated with gastric adenocarcinoma prognosis.


ABSTRACT: For the first time, dramatically decreased Dp71 protein and mRNA was found in 34 pairs of resected primary gastric adenocarcinoma. Immunohistochemistry identified Dp71 expression suppressed in 72.2% of 104 gastric cancer patients. The decreased Dp71 expression was significantly correlated with cancer differentiation (P=0.001) and lymph vascular invasion (p=0.041). Decreased Dp71 expression was associated with a poor gastric adenocarcinoma prognosis (P=0.001). Significantly less Dp71 mRNA and protein were found in BGC823, SGC7901, AGS compared with GES-1. Via increasing lamin B1 mRNA and protein, enforced Dp71d and Dp71f expression resulted in SGC7901 proliferation inhibition. Co-IP proved interaction of Dp71 with lamin B1 in GES-1 cells. Further expression characterization showed reduced lamin B1 in gastric cancer tissue and cancer cells. Increasing lamin B1 expression results in the growth inhibition of SGC7901, which suggests that Dp71-lamin B1 protein complex plays an important role for the newly identified tumor suppressive function of Dp71.

SUBMITTER: Tan S 

PROVIDER: S-EPMC5288215 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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Decreased Dp71 expression is associated with gastric adenocarcinoma prognosis.

Tan Sipin S   Tan Jin J   Tan Sichuang S   Zhao Shuai S   Cao Xiaoxia X   Chen Zhikang Z   Weng Qiaocheng Q   Zhang Huali H   Wang Kangkai K   Zhou Jiang J   Xiao Xianzhong X  

Oncotarget 20160801 33


For the first time, dramatically decreased Dp71 protein and mRNA was found in 34 pairs of resected primary gastric adenocarcinoma. Immunohistochemistry identified Dp71 expression suppressed in 72.2% of 104 gastric cancer patients. The decreased Dp71 expression was significantly correlated with cancer differentiation (P=0.001) and lymph vascular invasion (p=0.041). Decreased Dp71 expression was associated with a poor gastric adenocarcinoma prognosis (P=0.001). Significantly less Dp71 mRNA and pro  ...[more]

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