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Targeting of CCN2 suppresses tumor progression and improves chemo-sensitivity in urothelial bladder cancer.


ABSTRACT: Urothelial bladder cancer (UBC) is the most common urinary neoplasm in China. CCN family protein 2 (CCN2), a cysteine-rich matricellular protein, is abnormally expressed in several cancer types and involved in tumor progression or chemo-resistance. However, detailed expression patterns and effects of CCN2 in UBC still remain unknown. We found that down-regulation of CCN2 suppressed proliferation, migration and invasion of UBC cells in vitro and targeting of CCN2 decelerated xenograft growth in vivo. When treated with mitomycin C (MMC), CCN2-scilencing UBC cells showed lower survival and higher apoptotic rates and these effects were probably mediated via inactivation of Akt and Erk pathways. We also demonstrated the clinical significance of CCN2 expression, which was higher in UBC tissues and associated with advanced tumor stage and high pathologic grade. Taken together, our data suggest that CCN2 is an oncogene in UBC and might serve as a matricellular target for improving chemotherapeutic efficacy.

SUBMITTER: Wang X 

PROVIDER: S-EPMC5630414 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Targeting of CCN2 suppresses tumor progression and improves chemo-sensitivity in urothelial bladder cancer.

Wang Xiaojing X   Xu Tianyuan T   Gao Fengbin F   He Hongchao H   Zhu Yu Y   Shen Zhoujun Z  

Oncotarget 20170807 39


Urothelial bladder cancer (UBC) is the most common urinary neoplasm in China. CCN family protein 2 (CCN2), a cysteine-rich matricellular protein, is abnormally expressed in several cancer types and involved in tumor progression or chemo-resistance. However, detailed expression patterns and effects of CCN2 in UBC still remain unknown. We found that down-regulation of CCN2 suppressed proliferation, migration and invasion of UBC cells <i>in vitro</i> and targeting of CCN2 decelerated xenograft grow  ...[more]

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