NLRP12 is a prognostic biomarker and correlated with immune infiltrates in epithelial ovarian cancer

Author:

Ma Ruiqiong1,Tang Zhijian1,Wang Jianliu1

Affiliation:

1. Department of Obstetrics and Gynecology Peking University People's Hospital Beijing China

Abstract

AbstractBackgroundNLRP12 is a member of the intracellular Nod‐like receptor (NLR) family, suggesting it is an innate immune receptor for the initiation and progression of several cancers. However, its role on prognosis and immune infiltrates in epithelial ovarian cancer (EOC) is still unknown. The present study aimed to evaluate its prognostic value and its association with immune infiltrates in EOC.MethodsThe mRNA expression of NLRP12 of EOC from The Cancer Genome Atlas (TCGA) was analyzed. The association between NLRP12 and clinicopathological characters was evaluated with logistic regression. The association between NLRP12 expression and survival was analyzed by Cox regression and Kaplan–Meier analyses. A nomogram was used to predict the impact of NLRP12 on prognosis. Gene Ontology term analysis and gene set enrichment analysis (GSEA) were performed to identify the signaling pathways related to NLRP12 expression. Immune cells infiltration for NLRP12 was analyzed using single‐sample GSEA. The relationship between NLRP12 and tumor‐infiltrating immune cells (TICs) was investigated by a Wilcoxon rank sum test. The expression of NLRP12 were also further verified in EOC tissues and cell lines. Additionally, we confirmed the biological function of NLRP12 in vitro.ResultsNLRP12 was highly expressed in patients with EOC from TCGA. High NLRP12 expression correlated with poor disease‐specific survival (p < 0.001) and overall survival (p < 0.001). Multivariate analysis revealed that NLRP12 expression was an independent prognostic marker for overall survival (p = 0.042). The C‐indexes and calibration plots of the nomogram based on multivariate analysis indicated an effective predictive performance for EOC patients. GSEA showed enrichment of cell adhesion, tumorigenesis and immune response in the NLRP12 high expression group. Increased NLRP12 expression correlated positively with several TICs, including macrophages, neutrophils, T effector memory cells and immature dendritic cells (p < 0.001). In addition, NLRP12 silencing inhibited cell proliferation and migration in EOC cells.ConclusionsIn conclusion, increased NLRP12 expression correlated significantly with poor survival and immune infiltration in EOC.

Publisher

Wiley

Subject

Genetics (clinical),Drug Discovery,Genetics,Molecular Biology,Molecular Medicine

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1. Focus on negatively regulated NLRs in inflammation and cancer;International Immunopharmacology;2024-07

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