The whole 137 patients were all received rituximab in combination with chemotherapy as first-line treatment....Higher expression of CCL19 and RGL1 were significantly associated with longer OS (HR = 0.47, 95% CI [0.25–0.86], p = 0.014 for CCL19; HR = 0.34, 95% CI [0.13–0.90], p = 0.03 for RGL1)....CCL19 expression was associated with survival outcomes and might be a potential prognostic biomarker for FL treated with first-line chemoimmunotherapy.