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From Low to No O2-Dependent Hypoxia Photodynamic Therapy (hPDT): A New Perspective
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2022-11-02 , DOI: 10.1021/acs.accounts.2c00531
Mingle Li 1, 2 , Yunjie Xu 1 , Xiaojun Peng 2 , Jong Seung Kim 1
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2022-11-02 , DOI: 10.1021/acs.accounts.2c00531
Mingle Li 1, 2 , Yunjie Xu 1 , Xiaojun Peng 2 , Jong Seung Kim 1
Affiliation
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The advent of photochemical techniques has revolutionized the landscape of biology and medical sciences. Especially appealing in this context is photodynamic therapy (PDT), which is a photon-initiated treatment modality that uses cytotoxic reactive oxygen species (ROS) to kill malignant cells. In the past decade, PDT has risen to the forefront of cancer therapy. Its optical control enables noninvasive and spatiotemporal manipulation of the treatment process, and its photoactive nature allows unique patterns to avoid drug resistance to conventional chemotherapeutics. However, despite the impressive advances in this field, achieving widespread clinical adoption of PDT remains difficult. A major concern is that in the hostile tumor microenvironment, tumor cells are hypoxic, which hinders ROS generation during PDT action. To overcome this “Achilles’ heel”, current strategies focus primarily on the improvement of the intratumoral O2 perfusion, while clinical trials suggest that O2 enrichment may promote cancer cell proliferation and metastasis, thereby making FDA approval and clinical transformation of these paradigms challenging.
中文翻译:
从低氧到无氧依赖性缺氧光动力疗法 (hPDT):新视角
光化学技术的出现彻底改变了生物学和医学科学的面貌。在这方面特别有吸引力的是光动力疗法 (PDT),这是一种光子启动的治疗方式,使用细胞毒性活性氧 (ROS) 来杀死恶性细胞。在过去的十年中,PDT 已经上升到癌症治疗的前沿。它的光学控制能够实现治疗过程的无创和时空操纵,其光活性特性允许独特的模式避免对传统化学疗法产生耐药性。然而,尽管该领域取得了令人瞩目的进展,但实现广泛临床采用 PDT 仍然很困难。一个主要问题是,在恶劣的肿瘤微环境中,肿瘤细胞缺氧,这会阻碍 PDT 作用期间 ROS 的产生。2灌注,而临床试验表明 O 2富集可能促进癌细胞增殖和转移,从而使这些范例的 FDA 批准和临床转化具有挑战性。
更新日期:2022-11-02
中文翻译:

从低氧到无氧依赖性缺氧光动力疗法 (hPDT):新视角
光化学技术的出现彻底改变了生物学和医学科学的面貌。在这方面特别有吸引力的是光动力疗法 (PDT),这是一种光子启动的治疗方式,使用细胞毒性活性氧 (ROS) 来杀死恶性细胞。在过去的十年中,PDT 已经上升到癌症治疗的前沿。它的光学控制能够实现治疗过程的无创和时空操纵,其光活性特性允许独特的模式避免对传统化学疗法产生耐药性。然而,尽管该领域取得了令人瞩目的进展,但实现广泛临床采用 PDT 仍然很困难。一个主要问题是,在恶劣的肿瘤微环境中,肿瘤细胞缺氧,这会阻碍 PDT 作用期间 ROS 的产生。2灌注,而临床试验表明 O 2富集可能促进癌细胞增殖和转移,从而使这些范例的 FDA 批准和临床转化具有挑战性。