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This study investigated the diagnostic, prognostic, and therapeutic significance of Fc receptor-like 1 (FCRL1) and B-cell activating factor (BAFF) mRNA expression in Egyptian patients with diffuse large B-cell lymphoma (DLBCL) undergoing the standard R-CHOP regimen (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) using quantitative real-time PCR (RT-qPCR). The results demonstrated that FCRL1 and BAFF mRNA expression were significantly elevated in DLBCL patients compared to healthy controls. A strong positive correlation existed between BAFF and FCRL1 expression levels. Diagnostic performance assessed through combined ROC curve analysis revealed that BAFF, FCRL1, and lactate dehydrogenase (LDH) achieved perfect diagnostic accuracy (AUC = 1.0), demonstrating 100% sensitivity, specificity, and predictive values. Further prognostic analysis using COX regression identified elevated FCRL1 expression as the most significant predictor of poor clinical outcomes. Kaplan–Meier survival analysis reinforced this finding, with high FCRL1 expression showing significant associations with reduced overall survival (OS, p = 0.031) and progression-free survival (PFS, p = 0.038). The study underscores the potential utility of BAFF and FCRL1 mRNA as diagnostic markers for DLBCL, with FCRL1 emerging as a promising prognostic marker and potential therapeutic target enabling more tailored treatment approaches for DLBCL, the most common type of B-cell non-Hodgkin lymphoma, and patients receiving R-CHOP therapy.
Al-Amodi et al. (Fri,) studied this question.