A scoping review of small animal image-guided radiotherapy research: Advances, impact and future opportunities in translational radiobiology.

A scoping review of small animal image-guided radiotherapy research: Advances, impact and future opportunities in translational radiobiology.
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DOI:
10.1016/j.ctro.2022.04.004
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发表时间:
2022-05
影响因子:
3.1
通讯作者:
--
中科院分区:
医学3区
文献类型:
--
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15年来临床前影像引导放疗(RT)的研究趋势。按物理和生物学贡献分类的临床前RT研究进展。临床前放射生物学研究的转化影响。对已发表的使用小动物辐射器的研究进行范围审查,并强调自2007年这些平台开发和商业化以来,这些平台在临床前放疗(RT)研究方面取得的进展。PubMed检索和制造商记录被用于确定907项研究,其中359项小动物RT研究被纳入分析。这些文章被分类为生物学或物理学贡献,并根据研究目标、实验模型和其他参数分为亚组,以确定临床前RT研究前景的趋势。从2007年到2021年,大多数发表的文章是生物学贡献(62%),而物理学贡献占出版物的38%。物理学文章的主要研究领域是剂量测定和校准(24%)、治疗计划和模拟(22%)和成像(22%),研究主要使用了模型(41%)或体内模型(34%)。大多数生物学贡献是肿瘤研究(69%),大脑是最常见的研究部位。肿瘤生物学最常见的研究领域是评估放射增敏剂(33%)、模型开发(30%)和成像(21%),其中细胞系衍生的异种移植物是最常见的模型(82%)。31%的研究集中在正常组织放射生物学上,肺是研究最多的部位。本研究捕捉了2007年至2021年使用小动物辐照器进行临床前放射治疗研究的趋势。我们的数据显示,在生物学和物理学研究的重要领域,临床前RT研究的吸收和产出增加,可以为临床试验提供信息。
Research trends from 15 years of preclinical image-guided radiotherapy (RT). Progress in preclinical RT research classified by physics & biology contributions. Translational impact of preclinical radiobiology research. To provide a scoping review of published studies using small animal irradiators and highlight the progress in preclinical radiotherapy (RT) studies enabled by these platforms since their development and commercialization in 2007. PubMed searches and manufacturer records were used to identify 907 studies that were screened with 359 small animal RT studies included in the analyses. These articles were classified as biology or physics contributions and into subgroups based on research aims, experimental models and other parameters to identify trends in the preclinical RT research landscape. From 2007 to 2021, most published articles were biology contributions (62%) whilst physics contributions accounted for 38% of the publications. The main research areas of physics articles were in dosimetry and calibration (24%), treatment planning and simulation (22%), and imaging (22%) and the studies predominantly used phantoms (41%) or in vivo models (34%). The majority of biology contributions were tumor studies (69%) with brain being the most commonly investigated site. The most frequently investigated areas of tumor biology were evaluating radiosensitizers (33%), model development (30%) and imaging (21%) with cell-line derived xenografts the most common model (82%). 31% of studies focused on normal tissue radiobiology and the lung was the most investigated site. This study captures the trends in preclinical RT research using small animal irradiators from 2007 to 2021. Our data show the increased uptake and outputs from preclinical RT studies in important areas of biology and physics research that could inform translation to clinical trials.
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