期刊
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
卷 22, 期 2, 页码 797-807出版社
WILEY
DOI: 10.1111/jcmm.13357
关键词
SPOCK1; gastric cancer; epithelial-mensenchymal transition
资金
- Science Foundation of Taizhou People's Hospital [ZL201718]
- Medical science and technology development foundation of Jiangsu University [JLY20160148, JLY20160149]
Metastasis is a crucial impediment to the successful treatment for gastric cancer. SPOCK1 has been demonstrated to facilitate cancer metastasis in certain types of cancers; however, the role of SPOCK1 in the invasion and metastasis of gastric cancer remains elusive. SPOCK1 and epithelial-mesenchymal transition (EMT)-related biomarkers were detected by immunohistochemistry and Western blot in gastric cancer specimens. Other methods including stably transfected against SPOCK1 into gastric cancer cells, Western blot, migration and invasion assays in vitro and metastasis assay in vivo were also performed. The elevated expression of SPOCK1 correlates with EMT-related markers in human gastric cancer tissue, clinical metastasis and a poor prognosis in patients with gastric cancer. In addition, knockdown of SPOCK1 expression significantly inhibits the invasion and metastasis of gastric cancer cells in vitro and in vivo, inversely, SPOCK1 overexpression results in the opposite effect. Interestingly, SPOCK1 expression has no effect on cell proliferation in vitro and in vivo. Regarding the mechanism(s) of SPOCK1-induced cells invasion and metastasis, we prove that Slug-induced EMT is involved in SPOCK1-facilitating gastric cancer cells invasion and metastasis. The elevated SPOCK1 expression is closely correlated with cancer metastasis and patient survival, and SPOCK1 promotes the invasion and metastasis of gastric cancer through Slug-mediated EMT, thereby possibly providing a novel therapeutic target for gastric cancer.
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