PMEPA1 Is a Prognostic Biomarker That Correlates With Cell Malignancy and the Tumor Microenvironment in Bladder Cancer.

Abstract

Prostate transmembrane protein androgen induced 1 (PMEPA1) has been reported to promote cancer progression, but the potential role of PMEPA1 in bladder cancer (BLCA) remains elusive. We assess the role of PMEPA1 in BLCA, via a publicly available database and in vitro study. PMEPA1 was identified from 107 differentially expressed genes (DEGs) to have prognostic value. GO, KEGG, and GSEA analysis indicated that PMEPA1 was involved in cancer progression and the tumor microenvironment (TME). Then bioinformatical analysis in TCGA, GEO, TIMER, and TISIDB show a positive correlation with the inflammation and infiltration levels of three tumor-infiltrating immune cells (TAMs, CAFs, and MDSCs) and immune/stromal scores in TME. Moreover, in vitro study revealed that PMEPA1 promotes bladder cancer cell malignancy. Immunohistochemistry and survival analysis shed light on PMEPA1 potential to be a novel biomarker in predicting tumor progression and prognosis. At last, we also analyzed the role of PMEPA1 in predicting the molecular subtype and the response to several treatment options in BLCA. We found that PMEPA1 may be a novel potential biomarker to predict the progression, prognosis, and molecular subtype of BLCA.

• Authors: Dongxu Qiu, Jian Hu, Jiao Hu, Anze Yu, Belaydi Othmane, Tongchen He, Jian Ding, Xu Cheng, Wenbiao Ren, Xiyan Tan, Qiaoyan Yu, Jinbo Chen, Xiongbing Zu
• Journal: Frontiers in immunology (Front Immunol) Vol. 12 Pg. 705086 ( 2021) ISSN: 1664-3224 [Electronic] Switzerland
• PMID: 34777336 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2021 Qiu, Hu, Hu, Yu, Othmane, He, Ding, Cheng, Ren, Tan, Yu, Chen and Zu.

Chemical References

• Biomarkers, Tumor
• Membrane Proteins
• PMEPA1 protein, human

Topics

• Biomarkers, Tumor
• Cell Line, Tumor
• Computational Biology (methods)
• Female
• Gene Expression Profiling
• Humans
• Lymphocytes, Tumor-Infiltrating (immunology, metabolism, pathology)
• Male
• Membrane Proteins (genetics, metabolism)
• Neoplasm Grading
• Neoplasm Staging
• Prognosis
• Transcriptome
• Tumor Microenvironment (genetics)
• Tumor-Associated Macrophages (immunology, metabolism, pathology)
• Urinary Bladder Neoplasms (etiology, mortality, pathology)