Activation of hedgehog signaling associates with early disease progression in chronic lymphocytic leukemia.

ABSTRACT: Targeted sequencing of 103 leukemia-associated genes in leukemia cells from 841 treatment-naive patients with chronic lymphocytic leukemia (CLL) identified 89 (11%) patients as having CLL cells with mutations in genes encoding proteins that putatively are involved in hedgehog (Hh) signaling. Consistent with this finding, there was a significant association between the presence of these mutations and the expression of GLI1 (χ² test, P < .0001), reflecting activation of the Hh pathway. However, we discovered that 38% of cases without identified mutations also were GLI1⁺ Patients with GLI1⁺ CLL cells had a shorter median treatment-free survival than patients with CLL cells lacking expression of GLI1 independent of IGHV mutation status. We found that GAN

SUBMITTER: Ghia EM 

PROVIDER: S-EPMC6587306 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature