Cited by 95Nanoplatforms for cancer theranosticsPhotodynamic Therapy Research StudiesNanoparticle-Based Drug Delivery

Synergy of hypoxia relief and heat shock protein inhibition for phototherapy enhancement

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Zhang, Gutian, Cheng, Wenting, Du, Lin, Xu, Chuanjun, Li, Jinlong·2021·Journal of Nanobiotechnology

Abstract

Background: Phototherapy is a promising strategy for cancer therapy by reactive oxygen species (ROS) of photodynamic therapy (PDT) and hyperthermia of photothermal therapy (PTT). However, the therapeutic efficacy was restricted by tumor hypoxia and thermal resistance of increased expression of heat shock protein (Hsp). In this study, we developed albumin nanoparticles to combine hypoxia relief and heat shock protein inhibition to overcome these limitations for phototherapy enhancement. Results: Near-infrared photosensitizer (IR780) and gambogic acid (GA, Hsp90 inhibitor) were encapsulated into albumin nanoparticles via hydrophobic interaction, which was further deposited MnO 2 on the surface to form IGM nanoparticles. Both in vitro and in vivo studies demonstrated that IGM could catalyze overexpress of hydrogen peroxide to relive hypoxic tumor microenvironment. With near infrared irradiation, the ROS generation was significantly increase for PDT enhancement. In addition, the release of GA was promoted by irradiation to bind with Hsp90, which could reduce cell tolerance to heat for PTT enhancement. As a result, IGM could achieve better antitumor efficacy with enhanced PDT and PTT. Conclusion: This study develops a facile approach to co-deliver IR780 and GA with self-assembled albumin nanoparticles, which could relive hypoxia and suppress Hsp for clinical application of cancer phototherapy.

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Authors
Zhang, G., Cheng, W., Du, L., Xu, C., & Li, J.
Affiliations
  • Nanjing Drum Tower Hospital (CN)
  • Nanjing University of Chinese Medicine (CN)
Corresponding author
  • Zhang, Gutian
  • Li, Jinlong
Venue
Journal of Nanobiotechnology
Published
2021-01-06
Volume
19
Issue
1
Pages
9-9
ISSN
1477-3155 (ISSN-L)
OpenAlex
W3120574651
Cited by
95
References
61
Citations by year
2026: 6 · 2025: 24 · 2024: 21 · 2023: 18 · 2022: 14 · 2021: 12
FWCI
5.01
Type
journal article
Language
en
Open access
Locations
  • Journal of Nanobiotechnology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (81703088, 11774167)
  • Medical Science and Technology Development Foundation, Nanjing Department of Health (YKK19110)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
phototherapy, photodynamic therapy, photothermal therapy, tumor hypoxia, HSP90, albumin nanoparticles, hydrogen peroxide catalysis, reactive oxygen species, IR780, geldanamycin, near-infrared irradiation, thermal resistance, cancer therapy
MeSH terms
Animals, Hypoxia, Antineoplastic Agents, Cell Survival, Heat-Shock Proteins, Infrared Rays, Male, Mice, Inbred BALB C, Oxides, Phototherapy, Photosensitizing Agents, Manganese Compounds, HSP90 Heat-Shock Proteins, Xanthones, Mice, Nanoparticles, Hydrophobic and Hydrophilic Interactions, Tumor Microenvironment

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