ATRX、OLIG2、MGMT和IDH2在胶质母细胞瘤中：基本分子机制与治疗意义
ATRX, OLIG2, MGMT, and IDH2 in Glioblastoma: Essential Molecular Mechanisms and Therapeutic Significance.
摘要(中文译文)
胶质母细胞瘤（GBM）是最具侵袭性和致死性的原发性脑肿瘤之一，以高度异质性、侵袭性生长和对常规治疗的耐药性为特征。2021年WHO分类强调了分子诊断的重要性，将遗传学、转录组学和表观遗传学改变与组织学和免疫组化标准相结合。关键分子调控因子，包括ATRX、OLIG2、MGMT和IDH2，在染色质重塑、转录重编程、DNA修复和代谢适应中发挥重要作用。然而，它们在GBM中的具体表达模式和功能作用仍不完全清楚。本研究利用癌症基因组图谱（TCGA）的公开数据，评估ATRX、OLIG2、MGMT和IDH2在GBM中的转录谱，旨在识别潜在的生物标志物和治疗靶点。表达分析显示，ATRX在基因水平下调，但在蛋白质水平过表达，而OLIG2在基因和蛋白质两个水平均持续过表达。MGMT在基因或蛋白质表达方面均未显示统计学显著变化，而IDH2在基因水平无显著改变，但在蛋白质水平下调（< 0.05）。这些差异提示可能存在转录后调控机制影响GBM的分子谱。值得注意的是，OLIG2和MGMT的表达与患者生存显著相关（< 0.05），而ATRX和IDH2未达到统计学显著性。理解这些分子关系为潜在的治疗策略提供了有价值的见解，为精准肿瘤学方法以及同时靶向多条通路的联合治疗铺平了道路。
Abstract
: Glioblastoma (GBM) is among the most aggressive and lethal primary brain tumors, characterized by high heterogeneity, invasive growth, and resistance to conventional therapies. The 2021 WHO classification highlights the importance of molecular diagnostics, integrating genetic, transcriptomic, and epigenetic alterations alongside histological and immunohistochemical criteria. : Key molecular regulators, including ATRX, OLIG2, MGMT, and IDH2, play critical roles in chromatin remodeling, transcriptional reprogramming, DNA repair, and metabolic adaptation. However, their specific expression patterns and functional roles in GBM remain incompletely understood. This study utilizes publicly available data from The Cancer Genome Atlas (TCGA) to assess the transcriptional profiles of ATRX, OLIG2, MGMT, and IDH2 in GBM, aiming to identify potential biomarkers and therapeutic targets. : The expression analysis revealed that ATRX is downregulated at the gene level but overexpressed at the protein level, while OLIG2 is consistently overexpressed at both levels. MGMT showed no statistically significant changes in either gene or protein expression, whereas IDH2 was not significantly altered at the gene level but was downregulated at the protein level ( < 0.05). These discrepancies suggest potential post-transcriptional regulatory mechanisms influencing GBM molecular profiles. Notably, OLIG2 and MGMT expression correlated significantly with patient survival ( < 0.05), whereas ATRX and IDH2 did not reach statistical significance. : Understanding these molecular relationships provides valuable insights into potential therapeutic strategies, paving the way for precision oncology approaches and combination therapies targeting multiple pathways simultaneously.
如何引用
AMA
Andrea Pop-Crisan, Radu Pirlog, Lavinia-Lorena Pruteanu, Constantin Busuioc, Ovidiu-Laurean Pop, Deo Prakash Pandey, et al. ATRX, OLIG2, MGMT, and IDH2 in Glioblastoma: Essential Molecular Mechanisms and Therapeutic Significance.. Medicina (Kaunas, Lithuania). 2025; doi:10.3390/medicina61040697.
APA
Andrea Pop-Crisan, Radu Pirlog, Lavinia-Lorena Pruteanu, Constantin Busuioc, Ovidiu-Laurean Pop, Deo Prakash Pandey, et al (2025). ATRX, OLIG2, MGMT, and IDH2 in Glioblastoma: Essential Molecular Mechanisms and Therapeutic Significance.. Medicina (Kaunas, Lithuania). https://doi.org/10.3390/medicina61040697
GB/T 7714
Andrea Pop-Crisan, Radu Pirlog, Lavinia-Lorena Pruteanu, Constantin Busuioc, Ovidiu-Laurean Pop, Deo Prakash Pandey, et al. ATRX, OLIG2, MGMT, and IDH2 in Glioblastoma: Essential Molecular Mechanisms and Therapeutic Significance.[J]. Medicina (Kaunas, Lithuania), 2025 doi:10.3390/medicina61040697.
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