MSP analysis showed that DLEC1 promoter methylation was frequently detected in 3/6 DLBCL, 1/2 PTCL, 5/5 BL, 7/7 (one weak) HL, and 2/3 NL cell lines (Figure 2B; Table 1), well correlated with its silencing or reduction. The gene discussed is DLEC1; the disease is Burkitt lymphoma.