Abstract:
:Chimeric antigen receptor (CAR) T cells have emerged as a novel form of treatment of patients with B-cell malignancies. In particular, anti-CD19 CAR T-cell therapy has effected impressive clinical responses in B-cell acute lymphoblastic leukemia and diffuse large B-cell lymphoma. However, not all patients respond, and relapse with antigen loss has been observed in all patient subsets. Here, we report on the design and optimization of a novel CAR directed to the surface antigen CD37, which is expressed in B-cell non-Hodgkin lymphomas, in chronic lymphocytic leukemia, and in some cases of cutaneous and peripheral T-cell lymphomas. We found that CAR-37 T cells demonstrated antigen-specific activation, cytokine production, and cytotoxic activity in models of B- and T-cell lymphomas in vitro and in vivo, including patient-derived xenografts. Taken together, these results are the first showing that T cells expressing anti-CD37 CAR have substantial activity against 2 different lymphoid lineages, without evidence of significant T-cell fratricide. Furthermore, anti-CD37 CARs were readily combined with anti-CD19 CARs to generate dual-specific CAR T cells capable of recognizing CD19 and CD37 alone or in combination. Our findings indicate that CD37-CAR T cells represent a novel therapeutic agent for the treatment of patients with CD37-expressing lymphoid malignancies.
journal_name
Bloodjournal_title
Bloodauthors
Scarfò I,Ormhøj M,Frigault MJ,Castano AP,Lorrey S,Bouffard AA,van Scoyk A,Rodig SJ,Shay AJ,Aster JC,Preffer FI,Weinstock DM,Maus MVdoi
10.1182/blood-2018-04-842708subject
Has Abstractpub_date
2018-10-04 00:00:00pages
1495-1506issue
14eissn
0006-4971issn
1528-0020pii
blood-2018-04-842708journal_volume
132pub_type
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