Comprehensive Pan-cancer analysis of Pyroglutamylated RFamide Peptide Receptor: Its Potential Biological Functions and Associations with Prognosis and Immunity

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INTRODUCTION: The receptor for pyroglutamylated RF amide peptide (QRFPR) is a G protein-coupled receptor that plays a role in various physiological and pathological processes. However, a gap remains in our understanding of QRFPR's pan-cancer properties. METHODS: This study performs an extensive pan-cancer analysis of QRFPR utilizing large-scale genomic datasets, including The Cancer Genome Atlas (TCGA). We evaluated QRFPR expression levels in multiple malignancies and examined their correlations with clinical outcomes. Additionally, we investigated associations between QRFPR expression and immune cell infiltration using bioinformatics tools. RESULTS: Our results reveal significant alterations in QRFPR expression across several cancer types, particularly breast, colorectal, and prostate cancers. Elevated levels of QRFPR are linked to poor prognosis in certain malignancies, such as uterine corpus endometrial carcinoma (UCEC) and mesothelioma (MESO), and correlate with increased infiltration of immune cells, especially T cells and macrophages. Pathway enrichment analyses suggest that QRFPR may impact critical signaling pathways associated with cell growth, apoptosis, and immune regulation. DISCUSSION: The observed variations in QRFPR expression across cancer types suggest its diverse roles in tumor biology. Its association with unfavorable clinical outcomes in specific cancers, as well as its link to immune cell infiltration, highlights its multifaceted impact on tumor progression and microenvironment modulation. CONCLUSION: Our findings underscore the potential of QRFPR as a prognostic biomarker and therapeutic target in cancer biology. Further investigations into its functional mechanisms could pave the way for precision medicine approaches in oncology.

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