The Radiobiology of Radiopharmaceuticals.

The Radiobiology of Radiopharmaceuticals.
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DOI:
10.1016/j.semradonc.2020.07.002
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发表时间:
2021-01
影响因子:
3.5
通讯作者:
Knox SJ
Knox SJ
中科院分区:
医学2区
文献类型:
--
作者:
Morris ZS;Wang AZ;Knox SJ

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放射性药物治疗或靶向放射性核素治疗(TRT)是一种成熟的癌症治疗方法,包括越来越多的fda批准的药物和有前途的实验性治疗方法。放射生物学是了解这些药物的治疗能力及其潜在毒性的基础。然而,放射生物学领域在历史上一直专注于外束辐射。TRT和外部放射治疗在剂量学、剂量率、线性能量转移、治疗递送时间、分治、范围和靶体积等方面存在关键差异。同时,这些差异使得很难从外部束辐射的放射生物学推断出TRT的放射生物学,并对临床前和临床研究TRT提出了相当大的挑战。在这里,我们讨论这些挑战,并探讨目前对放射性药物的放射生物学的理解。
Radiopharmaceutical therapy or targeted radionuclide therapy (TRT) is a well-established class of cancer therapeutics that includes a growing number of FDA-approved drugs and a promising pipeline of experimental therapeutics. Radiobiology is fundamental to a mechanistic understanding of the therapeutic capacity of these agents and their potential toxicities. However, the field of radiobiology has historically focused on external beam radiation. Critical differences exist between TRT and external beam radiotherapy with respect to dosimetry, dose rate, linear energy transfer, duration of treatment delivery, fractionation, range, and target volume. These distinctions simultaneously make it difficult to extrapolate from the radiobiology of external beam radiation to that of TRT and pose considerable challenges for preclinical and clinical studies investigating TRT. Here, we discuss these challenges and explore the current understanding of the radiobiology of radiopharmaceuticals.
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