Rana Rashmi, Huirem Rohit Singh, Kant Ravi, Chauhan Kirti, Sharma Swati, Yashavarddhan M H, Chhabra Satnam Singh, Acharya Rajesh, Kalra Samir Kumar, Gupta Anshul, Jain Sunila, Ganguly Nirmal Kumar
Department of Research, Sir Ganga Ram Hospital, New Delhi, India.
Department of Neurosurgery, Sir Ganga Ram Hospital, New Delhi, India.
Front Oncol. 2022 Sep 13;12:960787. doi: 10.3389/fonc.2022.960787. eCollection 2022.
Gliomas are the most prevalent kind of malignant and severe brain cancer. Apoptosis regulating mechanisms are disturbed in malignant gliomas, as they are in added forms of malignancy. Understanding apoptosis and other associated processes are thought to be critical for understanding the origins of malignant tumors and designing anti-cancerous drugs for the treatment. The purpose of this study was to evaluate the variation in the expression level of several apoptotic proteins that are responsible for apoptosis in low to high-grade glioma. This suggests a significant change in the expression of five apoptotic proteins: Clusterin, HSP27, Catalase, Cytochrome C, and SMAC. Cytochrome C, one of the five substantially altered proteins, is a crucial component of the apoptotic cascade. The complex enzyme Cytochrome C is involved in metabolic pathways such as respiration and cell death. The results demonstrated that Cytochrome C expression levels are lower in glioma tissues than in normal tissues. What's more intriguing is that the expression level decreases with an increase in glioma grades. As a result, the discovery shows that Cytochrome C may be a target for glioma prognostic biomarkers.
神经胶质瘤是最常见的恶性且严重的脑癌类型。凋亡调节机制在恶性神经胶质瘤中受到干扰,在其他恶性形式中也是如此。人们认为,了解凋亡及其他相关过程对于理解恶性肿瘤的起源以及设计抗癌治疗药物至关重要。本研究的目的是评估几种负责低级别到高级别神经胶质瘤凋亡的凋亡蛋白表达水平的变化。这表明五种凋亡蛋白的表达有显著变化:簇集素、热休克蛋白27、过氧化氢酶、细胞色素C和第二线粒体衍生激活剂(SMAC)。细胞色素C是五种显著改变的蛋白之一,是凋亡级联反应的关键组成部分。复合酶细胞色素C参与呼吸和细胞死亡等代谢途径。结果表明,神经胶质瘤组织中细胞色素C的表达水平低于正常组织。更有趣的是,其表达水平随着神经胶质瘤级别的增加而降低。因此,该发现表明细胞色素C可能是神经胶质瘤预后生物标志物的一个靶点。