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Article Publish Status: FREE
Abstract Title:

Hyperbaric Oxygen Potentiates Doxil Antitumor Efficacy by Promoting Tumor Penetration and Sensitizing Cancer Cells.

Abstract Source:

Adv Sci (Weinh). 2018 Aug ;5(8):1700859. Epub 2018 Jun 25. PMID: 30128223

Abstract Author(s):

Xian Wu, Yanhong Zhu, Wei Huang, Jingqiu Li, Bixiang Zhang, Zifu Li, Xiangliang Yang

Article Affiliation:

Xian Wu

Abstract:

Hypoxia is a fundamental hallmark of solid tumors and helps contribute to chemotherapy resistance. Hyperbaric oxygen (HBO) therapy can overcome tumor hypoxia and promote chemotherapy antitumor efficacy; however, the simultaneous administration of some conventional chemotherapies, including doxorubicin (DOX), with HBO is considered an absolute contraindication. Here, DOX-loaded liposome (Doxil) is coadministered with HBO to assess the safety and efficacy of this combination treatment. By overcoming tumor hypoxia, HBO not only improves Doxil tumor penetration by decreasing the collagen deposition but also sensitizes tumor cells to Doxil. As a result, the combination treatment synergistically inhibits H22 tumor growth, with a tumor inhibition rate of 91.5%. The combination of HBO with Doxil shows neither extra side effects nor promotion of tumor metastasis. These results collectively reveal that the combination of HBO with Doxil is an effective and safe treatment modality. As both HBO and Doxil are routinely used, their combination could quickly translate to clinical trials for patients with hypoxic solid tumors.

Study Type : In Vitro Study

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Sayer Ji
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