Over expression of circulating miR-155 predicts prognosis in diffuse large B-cell lymphoma

We found that plasma miR-155 expression was significantly up-regulated in patients with DLBCL (median expression value: 4.29, range: 1.52-27.86) compared to healthy individuals (median expression value: 2.14, range: 0.29-10.56, P < 0.002). Moreover, DLBCL cases with an elevated level of miR-155 had shorter overall survival (median 9 vs. 13 months, P = 0.043) than those with a lower miR-155 expression.