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Spotlight on Ibrutinib in PCNSL: Adding Another Feather to Its Cap

Aparna Lakshmanan1, John C Byrd1

  • 1The Ohio State University, Columbus, Ohio. John.Byrd@osumc.edu aparna.lakshmanan@osumc.edu.

Cancer Discovery
|September 3, 2017
PubMed

In this issue Grommes and colleagues elegantly show that the irreversible inhibitor of Bruton tyrosine kinase, ibrutinib, promotes a high proportion of durable responses in primary central nervous system lymphoma, a type of diffuse large B-cell lymphoma (DLBCL), and also in secondary DLBCL relapsing to the central nervous system. Mutations in the B-cell antigen receptor-associated protein CD79B with upregulation of the MTOR pathway were associated with diminished response, but preclinical combination of PIK3CA and PIK3CD inhibitors synergized with ibrutinib to overcome this resistance mechanism, providing opportunity for further targeted therapy of this difficult-to-treat disease. Cancer Discov; 7(9); 940-2. ©2017 AACRSee related article by Grommes et al., p. 1018.

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