TIMP2 is associated with prognosis and immune infiltrates of gastric and colon cancer

免疫系统 结直肠癌 癌症 肿瘤科 危险系数 内科学 医学 无进展生存期 癌症研究 置信区间 免疫学 总体生存率
作者
Jian Fang,Jiao Yanhong,Wei Limeng,Guoping Niu,Yiqing Tian,Lin Hao,Zhaoji Pan
出处
期刊:International Immunopharmacology [Elsevier BV]
卷期号:110: 109008-109008 被引量:7
标识
DOI:10.1016/j.intimp.2022.109008
摘要

Tissue inhibitor of metalloproteinase-2 (TIMP2), a member of tissue inhibitors of the metalloproteinase (TIMP) family is associated with the progression of various tumors. However, the association of TIMP2 with cancer prognosis and tumor-infiltrating lymphocytes remains unclear. TIMP2 expression was analyzed by Tumor Immune Estimation Resource (TIMER), TNM plot, Gene Expression Profiling Interactive Analysis (GEPIA) database, and 50 paired gastric cancer tissues. We evaluated the influence of TIMP2 on clinical prognosis using the Kaplan-Meier plotter, the PrognoScan database, GEPIA, and TCGA data. The correlation of TIMP2 with tumor immune infiltrates and the set of gene markers of immune infiltrates was investigated by TIMER and GEPIA. TIMP2 is highly expressed in gastric cancer and slightly expressed in colon cancer. High TIMP2 expression was significantly correlated with poor overall survival (OS, hazard ratio [HR] = 1.38, 95% confidence interval [CI]: [1.16-1.63]; P = 0.0002) and progression-free survival (PFS, HR = 1.39, 95% CI: [1.14-1.7]; P = 0.0012) in gastric cancers. Specifically, high TIMP2 expression was associated with poorer OS and PFS, but not with OS and PFS in stage 1 (OS HR = 1.96, P = 0.29; PFS HR = 0.43, P = 0.19) and stage 2 (OS HR = 1.59, P = 0.12; PFS HR = 1.47, P = 0.2) and stage N0 patients (OS HR = 1.6, P = 0.35; PFS HR = 1.56, P = 0.38) of gastric cancer patients. There was a significant positive correlation between TIMP2 expression and different types of immune cells, including CD4+ T cells, CD8+ T cells, macrophages, neutrophils, and dendritic cells in the stomach adenocarcinoma (STAD) and colon adenocarcinoma (COAD). Moreover, TIMP2 expression was strongly correlated with different sets of immune markers. These results suggest that TIMP2 is associated with prognosis and level of immune infiltration in a variety of cancers, especially colon and gastric cancer patients. Moreover, the expression of TIMP2 potentially contributes to the regulation of tumor-associated macrophages (TAMs), dendritic cells, T cell exhaustion, and Tregs in colon and gastric cancer. These findings suggest that TIMP2 may serve as a prognostic biomarker for predicting prognosis and immune infiltration in gastric and colon cancer.
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