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CD38-Targeted Theranostics of Lymphoma with 89Zr/177Lu-Labeled Daratumumab
Advanced Science ( IF 14.3 ) Pub Date : 2021-03-15 , DOI: 10.1002/advs.202001879
Lei Kang 1, 2 , Cuicui Li 1 , Zachary T Rosenkrans 3 , Nan Huo 4 , Zhao Chen 1 , Emily B Ehlerding 2 , Yan Huo 1 , Carolina A Ferreira 2 , Todd E Barnhart 2 , Jonathan W Engle 2 , Rongfu Wang 1 , Dawei Jiang 2, 5 , Xiaojie Xu 4 , Weibo Cai 2, 3
Affiliation  

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.

中文翻译:


使用 89Zr/177Lu 标记的 Daratumumab 对淋巴瘤进行 CD38 靶向治疗诊断



淋巴瘤是一种异质性疾病,具有不同的临床表现和结果。淋巴瘤的许多亚型,例如伯基特淋巴瘤和弥漫性大B细胞淋巴瘤,即使在常规化疗和放疗后也具有高度侵袭性,预后不佳。因此,探索淋巴瘤的特异性生物标志物具有很高的临床意义。在此,研究了一种用于区分淋巴瘤的潜在标记物 CD38。然后用 Zr-89 和 Lu-177 对 CD38 靶向单克隆抗体(mAb,daratumumab)进行放射性标记,用于治疗诊断应用。作为诊断成分,Zr-89 标记的 mAb 在通过正电子发射断层扫描 (PET) 成像描绘 CD38 阳性淋巴瘤方面具有高度特异性,而 Lu-177 标记的 mAb 可以很好地作为治疗成分,在治疗后抑制肿瘤生长。一次性管理。这些结果强烈表明CD38是淋巴瘤特异性标记物,并证明89 Zr/ 177 Lu标记的daratumumab有助于临床前模型中淋巴瘤的免疫PET成像和放射免疫治疗。这种针对 CD38 的治疗诊断学的进一步临床评估和转化可能对淋巴瘤患者的分层和管理有重大帮助。
更新日期:2021-05-19
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