Gaseous microenvironmental remodeling of tumors for enhanced photo-gas therapy and real-time tracking

The gaseous microenvironment (GME) of tumors is rapidly becoming a new concern for nanotechnology-mediated oncotherapy. Here, we constructed a tumor/near-infrared (NIR) light-responsive nanoplatform to generate O 2 and NO for remodeling the GME of tumors and phototherapy. The biocompatible and pyrol...

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Bibliographic Details
Published in:Biomaterials science 2021-03, Vol.9 (6), p.2313-2321
Main Authors: He, Yuchu, Cong, Cong, Zhao, Shuxian, Li, Zhuo, Wang, Desong, Gu, Jianmin, Liu, Lanxiang, Gao, Dawei
Format: Article
Language:English
Subjects:
Anticancer properties
Biocompatibility
Gases
Hydrogen Peroxide
Hyperthermia, Induced
Light irradiation
Light therapy
Magnetic resonance imaging
Manganese Compounds
Manganese dioxide
Nanoparticles
Nanotechnology
Near infrared radiation
Oxides
Real time
Tumors
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Summary:The gaseous microenvironment (GME) of tumors is rapidly becoming a new concern for nanotechnology-mediated oncotherapy. Here, we constructed a tumor/near-infrared (NIR) light-responsive nanoplatform to generate O 2 and NO for remodeling the GME of tumors and phototherapy. The biocompatible and pyrolytic polydopamine was used to load indocyanine green, NONOate, and MnO 2 NPs as a nanoenzyme (PINM). Then, HA was modified on the PINM to form the final nanoplatform (PINMH). PINMH can target tumors favorably due to the modification of HA. Under the NIR light irradiation, PINM converts the light and O 2 to hyperpyrexia (58.5 °C) and cytotoxic 1 O 2 . MnO 2 NPs catalyze the H 2 O 2 overexpressed in tumors to O 2 , which increases the amount of 1 O 2 . Moreover, NONOate decomposes to NO (100 μM) under hyperpyrexia, thus leading to the gas therapy. The results verified that the responsive nanoplatform with precise gaseous regulation and phototherapy exhibited a superior anti-tumor effect ( V / V 0 = 1.2) and biosafety. In addition, PINMH can be tracked in real-time via magnetic resonance imaging. In this study, an intelligent nano-platform integrated with diagnosis and treatment was developed, which used the phototherapy technology to reshape GME and achieve good anti-tumor effects, aiming to provide an innovative and reasonable strategy for the development of tumor treatment. We constructed a tumor/NIR light-responsive nanoplatform to generate O 2 and NO for reprogramming the gaseous microenvironment of tumors and phototherapy.
ISSN:2047-4830
2047-4849
DOI:10.1039/d0bm02026e