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標題: Update on a tumor-associated NADH oxidase in gastric cancer cell growth
作者: Cheng, Hsiao-Ling
Lee, Yi-Hui
Yuan, Tein-Ming
Chen, Shi-Wen
Chueh, Pin-Ju
關鍵字: Apoptosis;Capsaicin;Gastric cancer cells;Protein expression;Tumor-associated NADH oxidase;Animals;Antineoplastic Agents;Apoptosis;Biomarkers, Tumor;Enzyme Inhibitors;Humans;NADH, NADPH Oxidoreductases;Signal Transduction;Stomach Neoplasms;Tumor Burden;Cell Proliferation
Project: World journal of gastroenterology, Volume 22, Issue 10, Page(s) 2900-5.
Gastric cancer is one of the most common human malignancies, and its prevalence has been shown to be well-correlated with cancer-related deaths worldwide. Regrettably, the poor prognosis of this disease is mainly due to its late diagnosis at advanced stages after the cancer has already metastasized. Recent research has emphasized the identification of cancer biomarkers in the hope of diagnosing cancer early and designing targeted therapies to reverse cancer progression. One member of a family of growth-related nicotinamide adenine dinucleotide (NADH or hydroquinone) oxidases is tumor-associated NADH oxidase (tNOX; ENOX2). Unlike its counterpart CNOX (ENOX1), identified in normal rat liver plasma membranes and shown to be stimulated by growth factors and hormones, tNOX activity purified from rat hepatoma cells is constitutively active. Its activity is detectable in the sera of cancer patients but not in those of healthy volunteers, suggesting its clinical relevance. Interestingly, tNOX expression was shown to be present in an array of cancer cell lines. More importantly, inhibition of tNOX was well correlated with reduced cancer cell growth and induction of apoptosis. RNA interference targeting tNOX expression in cancer cells effectively restored non-cancerous phenotypes, further supporting the vital role of tNOX in cancer cells. Here, we review the regulatory role of tNOX in gastric cancer cell growth.
DOI: 10.3748/wjg.v22.i10.2900
Appears in Collections:生物醫學研究所

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