ASIA unversity:Item 310904400/111619
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    题名: Thrombospondin 2 promotes tumor metastasis by inducing matrix metalloproteinase-13 production in lung cancer cells
    作者: Liu, Ju-Fang;Liu, Ju-Fang;Chiang-Wen, L;Lee, Chiang-Wen;Ming-Horng;Tsai, Ming-Horng;湯智昕;Chih-Hsin, Tang;Chen, Po-Chun;Chen, Po-Chun;Li, Liang-Wei;Lin, Liang-Wei;Li, Chih-Yang;Lin, Chih-Yang;Lu, Chih-Hao;Lu, Chih-Hao;Lin, Yu-Feng;Lin, Yu-Feng;Ch, Chia-Chia;Chao, Chia-Chia
    贡献者: 生物科技學系
    日期: 2018-09
    上传时间: 2018-12-24 11:51:41 (UTC+8)
    摘要: Thrombospondin (TSP)-2, a matricellular glycoprotein of the TSP family, regulates multiple biological functions, including proliferation, angiogenesis, cell adhesion, and extracellular matrix (ECM) modeling. The clinical relevance of TSP-2 has been explored in many different cancers. TSP-2 expression levels vary between different cancer types, and their role in tumor progression remains controversial. Although previous studies have reported higher serum TSP-2 levels in patients with non-small cell lung cancer, the role of TSP-2 in lung cancer progression remains to be addressed. A total of 585 lung adenocarcinoma datasets, including mRNA sequencing and clinical data, were retrieved from The Cancer Genome Atlas (TCGA). Forty paired adjacent normal tissues and lung tumor tissue datasets were used to examine TSP-2 expression levels. Tumor microarray were performed with immunohistochemical staining to examine TSP-2 expression in lung cancer patients. Transwell migration assay, quantitative real-time PCR and Western blot were used to investigate molecular mechanism of TSP-2 in lung cancer cell. TSP-2 promotes matrix metalloproteinase-13 (MMP-13) expression, cell migration, and cell invasion by mediating integrin αvβ3/FAK/Akt/NF-κB signal transduction. Using TSP-2 knockdown stable cell lines, we found that TSP-2 knockdown reduces MMP-13 expression and cell mobility. When we manipulated the tumor tissue microarray and TCGA datasets to investigate the clinical relevance of TSP-2, we found high TSP-2 expression levels in lung cancer specimens. The present study demonstrates that TSP-2 regulates cell mobility through MMP-13 expression in lung cancer cells. In addition, TSP-2 expression was associated with MMP-13 expression and poor prognosis in lung cancer. TSP-2 may therefore be a promising novel target for lung cancer treatment.
    显示于类别:[生物科技學系] 期刊論文


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