Abstract
Glioblastoma (GBM) is one of the most lethal tumor of all human cancers. Due to its poor response to chemotherapy and radiotherapy as well as its high rate of recurrence after treatment, the treatment is still undesired. The identification of potential related genes and bio-markers in the development of GBM could provide some new targets for the treatment of GBM. Our purpose in this study was to evaluate the mission of COL8A2 in GBM. Combined with TCGA, Oncomine databases, CGGA, GEPIA website and qRT-PCR analyses, we found that COL8A2 was up-regulated both in GBM tissues and cells compared to the controls. Moreover, the high COL8A2 expression was associated with the shorter overall survival of patients with GBM. The expression of COL8A2 was also positively correlated with metastasis-associated genes including vimentin, snail, slug, MMP2 and MMP7 according to GEPIA website. Knockdown of COL8A2 could suppress the cell proliferation, cell migration and invasion, whereas the overexpression of COL8A2 significantly expedited these processes. What’s more, the outcome of western blot analysis manifested that COL8A2 could induced the expression of vimentin, snail, slug, MMP2 and MMP7. Taken together, COL8A2 activated cell proliferation, cell migration and invasion via raising the relative expression of EMT-related proteins in GBM. Therefore, our investigation suggests the oncogenic role of COL8A2 in GBM and provides a potential application of COL8A2 for GBM therapy.
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The data was available from the corresponding author on reasonable request.
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This study is supported by the domestic visiting scholar funding of the Weifang Medical University.
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Yingxin Cheng and Yanli Yang designed this study. Yingxin Cheng, Lin Xiao, Yanli Yang, Xiaodong Liu, Xiurong Zhou, Zhenfu Bu, Peicheng Cao and Daokui Wang performed the experiments and analyzed the data. Yingxin Cheng write the manuscript. Yanli Yang revised the manuscript. All the authors read and approve the final version of this manuscript.
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Cheng, YX., Xiao, L., Yang, YL. et al. Collagen type VIII alpha 2 chain (COL8A2), an important component of the basement membrane of the corneal endothelium, facilitates the malignant development of glioblastoma cells via inducing EMT. J Bioenerg Biomembr 53, 49–59 (2021). https://doi.org/10.1007/s10863-020-09865-1
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DOI: https://doi.org/10.1007/s10863-020-09865-1