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  • Title: CD38-Targeted Theranostics of Lymphoma with 89Zr/177Lu-Labeled Daratumumab.
    Author: 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, Cai W.
    Journal: Adv Sci (Weinh); 2021 May; 8(10):2001879. PubMed ID: 34026426.
    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 89Zr/177Lu-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.
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