Abstract
Background ESRP1 has been described as epithelium-specific splicing regulator involved in many tumors progression. However, the role of ESRP1 in skin cutaneous melanoma is unclear. In the present study, we explored the expression levels of ESRP1 in melanoma and its effect on prognosis and immune infiltration. Methods This study integrated the information from ONCOMINE, GEPIA and UALCAN databases. We explored the genes closely related to ESRP1 using LINKEDIMECS and further analyzed the target kinase, miRNA and transcription factors of ESRP1.GSEA software was used to analyze the changes of GO function enrichment and KEGG pathway after ESRP1 and its related 100 genes changes. Finally, TIMER was used to analyze the relationship between ESRP1 and tumor immune cell infiltration. Results The expression of ESRP1mRNA was significantly downregulated in SKCM patients in comparison with healthy control based on tumor stage and lymph node metastasis status. Low level of ESRP1 expression correlated with better overall survival. ESRP1 is specifically related to tumor-associated kinases CDK1, miRNA138, and transcription factors ETF. Functional network analysis demonstrated that ESRP1 is involved in the regulation of the condensed chromosome, epidermis development, translational initiation, ribosome, drug metabolism, and chemical carcinogenesis. Mechanistically, results suggested that ESRP1 might play an important role in regulating tumor-associated macrophages polarization, DCs infiltration, Treg cells and T cell exhaustion. Conclusion Our study demonstrates ESRP1 expression and its prognostic value and potential regulatory networks in SKCM, shedding light on the clinical significance of ESRP1 and providing a novel biomarker for determining prognosis and immune infiltration in SKCM.
Mining database for the clinical significance and prognostic value of CBX family in skin cutaneous melanoma
