1. CD38-Targeted Theranostics of Lymphoma with 89 Zr/ 177 Lu-Labeled Daratumumab.
- Author
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Kang L, Li C, Rosenkrans ZT, Huo N, Chen Z, Ehlerding EB, Huo Y, Ferreira CA, Barnhart TE, Engle JW, Wang R, Jiang D, Xu X, and Cai W
- Subjects
- ADP-ribosyl Cyclase 1 metabolism, Animals, Antibodies, Monoclonal pharmacokinetics, Cell Line, Tumor, Humans, Immunologic Factors pharmacokinetics, Lymphoma, Large B-Cell, Diffuse immunology, Lymphoma, Large B-Cell, Diffuse pathology, Membrane Glycoproteins metabolism, Mice, Inbred BALB C, Mice, SCID, Radiopharmaceuticals pharmacokinetics, Radiopharmaceuticals pharmacology, Tissue Distribution, Xenograft Model Antitumor Assays, Mice, ADP-ribosyl Cyclase 1 immunology, Antibodies, Monoclonal pharmacology, Lutetium pharmacokinetics, Lymphoma, Large B-Cell, Diffuse drug therapy, Membrane Glycoproteins immunology, Positron Emission Tomography Computed Tomography methods, Precision Medicine methods, Radioisotopes pharmacokinetics, Zirconium pharmacokinetics
- Abstract
Lymphoma is a heterogeneous disease with varying clinical manifestations and outcomes. Many subtypes of lymphoma, such as Burkitt's lymphoma and diffuse large B cell lymphoma, are highly aggressive with dismal prognosis even after conventional chemotherapy and radiotherapy. As such, exploring specific biomarkers for lymphoma is of high clinical significance. Herein, a potential marker, CD38, is investigated for differentiating lymphoma. A CD38-targeting monoclonal antibody (mAb, daratumumab) is then radiolabeled with Zr-89 and Lu-177 for theranostic applications. As the diagnostic component, the Zr-89-labeled mAb is highly specific in delineating CD38-positive lymphoma via positron emission tomography (PET) imaging, while the Lu-177-labeled mAb serves well as the therapeutic component to suppress tumor growth after a one-time administration. These results strongly suggest that CD38 is a lymphoma-specific marker and prove that
89 Zr/177 Lu-labeled daratumumab facilitates immunoPET imaging and radioimmunotherapy of lymphoma in preclinical models. Further clinical evaluation and translation of this CD38-targeted theranostics may be of significant help in lymphoma patient stratification and management., Competing Interests: Weibo Cai is scientific advisor, stockholder, and grantee of Focus‐X Therapeutics, Inc. The other authors declare no conflict of interest., (© 2021 The Authors. Advanced Science published by Wiley‐VCH GmbH.)- Published
- 2021
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