Comprehensive analysis of PRPF19 immune infiltrates, DNA methylation, senescence-associated secretory phenotype and ceRNA network in bladder cancer

Front Immunol. 2023 Nov 6:14:1289198. doi: 10.3389/fimmu.2023.1289198. eCollection 2023.

Abstract

Background: Pre-mRNA processing factor 19 (PRPF19) is an E3 ligase that plays a crucial role in repairing tumor-damaged cells and promoting cell survival. However, the predictive value and biological function of PRPF19 in bladder urothelial carcinoma (BLCA) require further investigation.

Methods: In this study, we utilized transcriptomic data and bladder cancer tissue microarrays to identify the high expression of PRPF19 in BLCA, suggesting its potential as a prognostic biomarker. To gain a better understanding of the role of PRPF19 in the immune microenvironment of BLCA, we performed single cell analysis and employed the LASSO method. Additionally, we examined the methylation profiles of PRPF19 using the SMART website. Our investigation confirmed the correlation between PRPF19 and BLCA cell senescence and stemness. Furthermore, we constructed a PRPF19-miR-125a-5p-LINC02693-MIR4435-2HG ceRNA network using the ENCORI and miRWALK databases.

Results: Our comprehensive analysis reveals that PRPF19 can serve as a prognostic marker for BLCA and is significantly associated with various immune-infiltrating cells in BLCA. Moreover, our findings suggest that PRPF19 influences cellular senescence through the regulation of stemness. Finally, we developed a ceRNA network that has the potential to predict the prognosis of BLCA patients.

Conclusion: We confirmed the prognostic value and multiple biological functions of PRPF19 in BLCA. Furthermore, the specific ceRNA network can be used as a potential therapeutic target for BLCA.

Keywords: DNA methylation; ceRNA; immune infiltration; prognosis; senescence.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carcinoma, Transitional Cell*
  • Cellular Senescence / genetics
  • DNA Methylation
  • DNA Repair Enzymes
  • Humans
  • Nuclear Proteins
  • RNA Splicing Factors
  • Senescence-Associated Secretory Phenotype
  • Tumor Microenvironment / genetics
  • Urinary Bladder Neoplasms* / genetics

Substances

  • PRPF19 protein, human
  • RNA Splicing Factors
  • Nuclear Proteins
  • DNA Repair Enzymes

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This study was supported by the Horizontal Project of Heilongjiang Renxin Medical Assistance Foundation, Heilongjiang Charity Fund General Association, Natural Science Foundation of Heilongjiang Province (No. LH2019H030).