IRGM在肾透明细胞癌中的表达和预后价值及其与肿瘤增殖和迁移的关系
肖磊 , 刘金辉 , 熊福康 , 周本正
中国现代医学杂志 ›› 2025, Vol. 35 ›› Issue (11) : 41 -49.
IRGM在肾透明细胞癌中的表达和预后价值及其与肿瘤增殖和迁移的关系
Expression and prognostic value of IRGM in clear cell renal cell carcinoma and its correlation with tumor proliferation and migration
Objective To investigate the expression of Immunity-related GTPase family M (IRGM) in clear cell renal cell carcinoma (ccRCC) and analyze its correlation with tumor proliferation and migration. Methods Using The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases, we performed visual analysis of IRGM mRNA differential expression. ccRCC patients were categorized into IRGM low- and high-expression groups to assess the correlation between IRGM levels and clinicopathological characteristics. The Kaplan-Meier method was used to compare survival rates, and COX regression analysis was conducted to evaluate the prognostic value of IRGM with construction of a prognostic nomogram. In vitro experiments included qRT-PCR and Western blotting for detecting IRGM expression, CCK-8 and colony formation assays for proliferation assessment, and scratch wound and Transwell assays for migration evaluation. Results Compared with adjacent normal tissues, IRGM expression was significantly elevated in ccRCC tissues (P < 0.05), showing significant correlations with tumor grade and stage (P < 0.05), but not with gender, age, or N stage (P > 0.05). High IRGM expression correlated with poorer overall survival, disease-specific survival, and progression-free interval (all P < 0.05). Both mRNA and protein expression levels showed statistically significant differences in two cell lines (P < 0.05). IRGM knockdown significantly inhibited colony formation, proliferation, and migration capacities of ccRCC cells. Conclusion IRGM may serve as a novel prognostic biomarker closely associated with tumor proliferation and migration in ccRCC, demonstrating significant molecular marker value for predicting metastasis and prognosis.
肾透明细胞癌 / IRGM / 诊断 / 预后 / 细胞增殖 / 细胞迁移
clear cell renal cell carcinoma / immunity related GTPase M / diagnosis / prognosis / cell proliferation / cell migration
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湖北省自然科学基金(2024AFB810)
襄阳市第一人民医院科技创新项目(XYY2025QN06)
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