Upregulation of CISD2 augments ROS homeostasis and contributes to tumorigenesis and poor prognosis of lung adenocarcinoma

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2017
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Abstract
Abstract CISD2 is a redox-sensitive gene critical for normal development and mitochondrial integrity. CISD2 was known to have aberrant expression in several types of human cancers. However, its relation with lung cancer is still not clear. In this study we found CISD2 mRNA was significantly upregulated in lung adenocarcinoma (ADC) samples, compared with their adjacent normal counterparts, and was correlated with tumor stage, grade, and prognosis based on analysis of clinical specimens-derived expression data in public domain and our validation assay. Cell based assay indicated that CISD2 expression regulated accumulation of reactive oxygen species (ROS), polarization of mitochondrial membrane potential, as well as cell viability, apoptosis, invasiveness, and tumorigenicity. In addition, CISD2 expression was found significantly correlated with stress response/redox signaling genes such as EGR1 and GPX3, while such correlations were also found valid in many public domain data. Taken together, upregulation of CISD2 is involved in an increased antioxidant capacity in response to elevated ROS levels during the formation and progression of lung ADC. The molecular mechanism underlying how CISD2 regulates ROS homeostasis and augments malignancy of lung cancer warrants further investigations.
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li2017upregulationscientific Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Li, Shih-Miao;Chen, Chung-Hsing;Chen, Ya-Wen;Yen, Yi-Chen;Fang, Wen-Tsen;Tsai, Fang-Yu;Chang, Junn-Liang;Shen, Ying-Ying;Huang, Shiu-Feng;Chuu, Chih-Pin;Chang, I-Shou;Hsiung, Chao A.;Jiang, Shih Sheng;
Journal Scientific reports
Year 2017
DOI
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URL
http://link.springer.com/article/10.1038/s41598-017-12131-x
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