Primary gastric lymphoma (PGL) is the most common extranodal non-Hodgkin lymphoma. However, uniform criteria for treatment and outcome evaluation are lacking. MicroRNA-16 (miRNA-16) has been shown to exhibit tumor-suppressive properties in many cancers and is a good biomarker of prognosis. We detected the expression level of miRNA-16 in 91 patients with PGL by qPCR and analyzed the prognostic significance. The proportion of patients with high expression of miRNA-16 was greater in patients with disease onset at age ≤ 60 years (P = 0.027), early-stage disease (P = 0.06), and marginal zone B-cell lymphoma (P = 0.0031). Furthermore, the proportion of patients with high expression of miRNA-16 was greater in those with a complete response than in those without a complete response (P = 0.054). However, miRNA-16 expression was not a statistically significant predictor of survival. These results suggest that miRNA-16 is a useful biomarker of disease prognosis in patients with PGL.
Keywords: Primary gastric lymphoma; miRNA-16; prognostic indicator.
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