癌症治疗中的光疗:策略和挑战
Yeyu Cai1, Tian Chai2, William Nguyen3
1Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Signal transduction and targeted therapy
|April 1, 2025
概括
光疗,包括光动力疗法 (PDT),光热疗法 (PTT) 和光免疫疗法 (PIT),提供针对性的癌症治疗,副作用最小. 先进的纳米医学和创新策略正在克服诸如瘤透率低下和缺氧等挑战,以提高疗效.
科学领域:
- 在瘤学瘤学.
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
背景情况:
- 光疗,包括PDT,PTT和PIT,由于其副作用最小,空间选择性和正常组织的保存,是一种有前途的癌症治疗方式.
- 当前光疗面临的挑战包括不够的反应性氧物种 (ROS) 生产,低光热转换效率,瘤向性差,不利的药剂特性.
- 瘤缺氧和有限的光线透在深层病变进一步阻碍治疗疗效.
研究的目的:
- 审查光疗在癌症治疗中的基本原则和生物影响.
- 讨论PDT,PTT和PIT的主要机制.
- 突出解决光疗现有挑战的先进策略.
主要方法:
- 对光疗方式 (PDT,PTT,PIT) 的当前文献的综述.
- 分析与传统光疗剂和瘤微环境相关的挑战.
- 探索创新解决方案,包括纳米医学,氧气生成,低氧减轻,改善光线传递和免疫疗法集成.
主要成果:
- 纳米粒子和纳米载体系统提高了光疗的有效性.
- 克服瘤缺氧的策略包括在位氧生成和准HIF-1α通路.
- 使用近红外源,自发光材料和无线传输系统可以实现更好的光透.
- 光免疫疗法 (PIT) 可以通过整合免疫辅助剂和免疫检查点抑制剂来增强.
结论:
- 纳米医学和新策略显示出克服光疗局限性的巨大潜力.
- 解决瘤缺氧和改善光线透对于提高治疗结果至关重要.
- 进一步研究PIT,包括免疫调节,可以放大它在癌症治疗中的有效性.
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