Volume 186, Issue 5 pp. 735-740
Short Report

Midostaurin abrogates CD33-directed UniCAR and CD33-CD3 bispecific antibody therapy in acute myeloid leukaemia

Frederick Fasslrinner

Frederick Fasslrinner

Medical Clinic and Polyclinic I, University Hospital ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

FF and CA contributed equally to this work.Search for more papers by this author
Claudia Arndt

Claudia Arndt

Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany

FF and CA contributed equally to this work.Search for more papers by this author
Stefanie Koristka

Stefanie Koristka

Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany

Search for more papers by this author
Anja Feldmann

Anja Feldmann

Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany

Search for more papers by this author
Heidi Altmann

Heidi Altmann

Medical Clinic and Polyclinic I, University Hospital ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

Search for more papers by this author
Malte von Bonin

Malte von Bonin

Medical Clinic and Polyclinic I, University Hospital ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Centre (DKFZ), Heidelberg, Germany

Search for more papers by this author
Marc Schmitz

Marc Schmitz

Institute of Immunology, Medical Faculty ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

Centre for Regenerative Therapies Dresden, ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

University Cancer Centre (UCC), ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Centre (DKFZ), Heidelberg, Germany

Search for more papers by this author
Martin Bornhäuser

Martin Bornhäuser

Medical Clinic and Polyclinic I, University Hospital ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

Centre for Regenerative Therapies Dresden, ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

University Cancer Centre (UCC), ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Centre (DKFZ), Heidelberg, Germany

Search for more papers by this author
Michael Bachmann

Corresponding Author

Michael Bachmann

Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany

Centre for Regenerative Therapies Dresden, ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

University Cancer Centre (UCC), ‘Carl Gustav Carus’, TU Dresden, Dresden, Germany

German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Centre (DKFZ), Heidelberg, Germany

Correspondence: Michael Bachmann, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Department of Radioimmunology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstraße 400, 01328 Dresden, Germany.

E-mail: [email protected]

Search for more papers by this author
First published: 23 May 2019
Citations: 15

Summary

Combinatory therapeutic approaches of different targeted therapies in acute myeloid leukaemia are currently under preclinical/early clinical investigation. To enhance anti-tumour effects, we combined the tyrosine kinase inhibitor (TKI) midostaurin and T-cell mediated immunotherapy directed against CD33. Clinically relevant concentrations of midostaurin abrogated T-cell mediated cytotoxicity both after activation with bispecific antibodies and chimeric antigen receptor T cells. This information is of relevance for clinicians exploring T-cell mediated immunotherapy in early clinical trials. Given the profound inhibition of T-cell functionality and anti-tumour activity, we recommend specific FLT3 TKIs for further clinical testing of combinatory approaches with T-cell based immunotherapy.

Conflict of interest

Mi.B. holds patents related to the CD33-CD3 bsAb and the UniCAR system and is shareholder of Gemoab. The other authors declare to have no conflict of interest.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.