Manipulate tumor hypoxia for improved photodynamic therapy using nanomaterials

Due to its low adverse effects, minimal invasiveness, and outstanding patient compliance, photodynamic therapy (PDT) has drawn a great deal of interest, which is achieved through incomplete reduction of O2 by a photosensitizer under light illumination that produces amounts of reactive oxygen species...

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Bibliographic Details
Published in:European journal of medicinal chemistry 2023-02, Vol.247, p.115084-115084, Article 115084
Main Authors: Yi, Mengqi, Xiong, Bei, Li, Yuyang, Guo, Wei, Huang, Yunhan, Lu, Bo
Format: Article
Language:English
Subjects:
Cell Line, Tumor
Humans
Hypoxia - drug therapy
Nanomaterials
Nanostructures
Photochemotherapy - methods
Photodynamic therapy
Photosensitizing Agents - pharmacology
Photosensitizing Agents - therapeutic use
Tumor Hypoxia
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Summary:Due to its low adverse effects, minimal invasiveness, and outstanding patient compliance, photodynamic therapy (PDT) has drawn a great deal of interest, which is achieved through incomplete reduction of O2 by a photosensitizer under light illumination that produces amounts of reactive oxygen species (ROS). However, tumor hypoxia significantly hinders the therapeutic effect of PDT so that tumor cells cannot be eliminated, which results in tumor cells proliferating, invading, and metastasizing. Additionally, O2 consumption during PDT exacerbates hypoxia in tumors, leading to several adverse events after PDT treatment. In recent years, various investigations have focused on conquering or using tumor hypoxia by nanomaterials to amplify PDT efficacy, which is summarized in this review. This comprehensive review's objective is to present novel viewpoints on the advancement of oxygenation nanomaterials in this promising field, which is motivated by hypoxia-associated anti-tumor therapy. [Display omitted] •Different strategies to conquer or utilize tumor hypoxia for enhanced PDT are classified.•Novel nano-systems for manipulating tumor hypoxia are summarized.•The current challenges and opportunities are discussed.
ISSN:0223-5234
1768-3254
DOI:10.1016/j.ejmech.2022.115084