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>Expression of aquaporin-1 in SMMC-7221 liver carcinoma cells promotes cell migration
Expression of aquaporin-1 in SMMC-7221 liver carcinoma cells promotes cell migration
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Migration of tumor cells is a crucial step in tumor invasion and metastasis. Here we provide evidence that aquaporin expression is involved in tumor cell migration. RT-PCR, immunofluorescence and Western blot analysis demonstrated the AQP1 protein expression on the plasma membrane of SMMC-7221 human hepatoma cells. SMMC-7221 cell clones with high (SMMC-7221hPf) and low (SMMC-7221lPf) water permeability were identified by functional assays with corresponding high and low AQP1 expression. Cell migration rate was remarka- bly higher in SMMC-7221hPf cells than SMMC-7221l Pf cells, assessed by Boyden chamber and wound healing assays, whereas cell growth and adhesion were not different. Adenovirus-mediated AQP1 ex- pression in SMMC-7221lPf cells increased their water permeability and migration rate. These results pro- vide the first evidence that aquaporin-mediated membrane water permeability enhances tumor cell migration and may be associated with tumor invasion and metastasis.
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机译：Retraction statement: ‘Formin‐like2 regulates Rho/ROCK pathway to promote actin assembly and cell invasion of colorectal cancer’ by Yuanfeng Zeng Huijun Xie Yudan Qiao Jianmei Wang Xiling Zhu Guoyang He Yuling Li Xiaoli Ren Feifei Wang Li Liang and Yanqing Ding
