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Low-Cost, High-Pressure-Synthesized Oxygen-Entrapping Materials to Improve Treatment of Solid Tumors
Journal article   Open access   Peer reviewed

Low-Cost, High-Pressure-Synthesized Oxygen-Entrapping Materials to Improve Treatment of Solid Tumors

Jianling Bi, Emily Witt, Vanessa A Voltarelli, Vivian R Feig, Veena Venkatachalam, Hannah Boyce, Megan McGovern, Wade R Gutierrez, Jeffrey D Rytlewski, Kate R Bowman, …
Advanced science, Vol.10(10), e2205995
04/05/2023
DOI: 10.1002/advs.202205995
PMCID: PMC10074083
PMID: 36727291
url
https://doi.org/10.1002/advs.202205995View
Published (Version of record) Open Access

Abstract

Tumor hypoxia drives resistance to many cancer therapies, including radiotherapy and chemotherapy. Methods that increase tumor oxygen pressures, such as hyperbaric oxygen therapy and microbubble infusion, are utilized to improve the responses to current standard-of-care therapies. However, key obstacles remain, in particular delivery of oxygen at the appropriate dose and with optimal pharmacokinetics. Toward overcoming these hurdles, gas-entrapping materials (GeMs) that are capable of tunable oxygen release are formulated. It is shown that injection or implantation of these materials into tumors can mitigate tumor hypoxia by delivering oxygen locally and that these GeMs enhance responsiveness to radiation and chemotherapy in multiple tumor types. This paper also demonstrates, by comparing an oxygen (O )-GeM to a sham GeM, that the former generates an antitumorigenic and immunogenic tumor microenvironment in malignant peripheral nerve sheath tumors. Collectively the results indicate that the use of O -GeMs is promising as an adjunctive strategy for the treatment of solid tumors.
gas-entrapping materials radiation therapy tumor hypoxia malignant peripheral nerve sheath tumors

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