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Inhibition of B Cell Receptor Signaling by Ibrutinib in Primary CNS Lymphoma

  • Michail S. Lionakis
  • , Kieron Dunleavy
  • , Mark Roschewski
  • , Brigitte C. Widemann
  • , John A. Butman
  • , Roland Schmitz
  • , Yandan Yang
  • , Diane E. Cole
  • , Christopher Melani
  • , Christine S. Higham
  • , Jigar V. Desai
  • , Michele Ceribelli
  • , Lu Chen
  • , Craig J. Thomas
  • , Richard F. Little
  • , Juan Gea-Banacloche
  • , Sucharita Bhaumik
  • , Maryalice Stetler-Stevenson
  • , Stefania Pittaluga
  • , Elaine S. Jaffe
  • John Heiss, Nicole Lucas, Seth M. Steinberg, Louis M. Staudt, Wyndham H. Wilson
  • National Institutes of Health

Research output: Contribution to journal › Article › peer-review

480 Scopus citations

Abstract

Primary CNS lymphoma (PCNSL) harbors mutations that reinforce B cell receptor (BCR) signaling. Ibrutinib, a Bruton's tyrosine kinase (BTK) inhibitor, targets BCR signaling and is particularly active in lymphomas with mutations altering the BCR subunit CD79B and MYD88. We performed a proof-of-concept phase Ib study of ibrutinib monotherapy followed by ibrutinib plus chemotherapy (DA-TEDDi-R). In 18 PCNSL patients, 94% showed tumor reductions with ibrutinib alone, including patients having PCNSL with CD79B and/or MYD88 mutations, and 86% of evaluable patients achieved complete remission with DA-TEDDi-R. Increased aspergillosis was observed with ibrutinib monotherapy and DA-TEDDi-R. Aspergillosis was linked to BTK-dependent fungal immunity in a murine model. PCNSL is highly dependent on BCR signaling, and ibrutinib appears to enhance the efficacy of chemotherapy.

Original languageEnglish
Pages (from-to)833-843.e5
JournalCancer Cell
Volume31
Issue number6
DOIs
StatePublished - 12 Jun 2017

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • ABC DLBCL
  • Aspergillus fumigatus
  • B cell receptor signaling
  • BTK
  • ibrutinib
  • macrophage
  • primary CNS lymphoma

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