In the present study, we assessed the GRHL3 expression in 967 patients with diffuse large B cell lymphomas to identify the potential prognostic value and the development of specific therapeutic strategies. All patients enrolled were from a previous study by Hao Zhang et al. (BMC Cancer 14:333, 2014). GRHL3 expression status was evaluated by immunohistochemical analysis. Survival analysis using the Kaplan-Meier method and multivariate analysis were conducted to adjust the effect of GRHL3 expression as a potential independent prognostic factor. In the enrolled 967 patients, GRHL3 expression was detected in 398 (41.16 %) patients under immunohistochemical analysis. The 5-year survival rate in patients with GRHL3 expression was significantly lower than that in those without GRHL3 expression (37.8 vs 52.8 %, P < 0.001). Multivariate analysis identified GRHL3 expression as an independent predictor of poor survival. The sensitivity and specificity of GRHL3 for the diagnosis of germinal center B cell (GCB)/non-GCB was 89.2 % (182/204) and 82.1 % (174/212), respectively. GRHL3 expression may be useful as a prognostic factor and for the diagnosis GCB/non-GCB of diffuse large B cell lymphoma.
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