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Tumor Microenvironment Adaptable Nanoplatform for O 2 Self‐Sufficient Chemo/Photodynamic Combination Therapy
Author(s) -
Li ShiYing,
Zhao LinPing,
Zheng RongRong,
Fan GuiLing,
Liu LingShan,
Zhou Xiang,
Chen XianTong,
Qiu XiaoZhong,
Yu XiYong,
Cheng Hong
Publication year - 2020
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201900496
Subject(s) - tumor microenvironment , doxorubicin , photodynamic therapy , cancer research , chemistry , glutathione , surface modification , cd44 , tumor hypoxia , hyaluronic acid , biocompatibility , biophysics , tumor cells , radiation therapy , biochemistry , medicine , chemotherapy , in vitro , biology , organic chemistry , anatomy , enzyme
Malignant proliferation of tumor cells induces abnormal tissue microenvironments, leading to therapeutic resistance and poor therapeutic outcome. In this paper, manganese dioxide (MnO 2 ) nanoshells are coated on a porphyrinic metal–organic framework of porous coordination network (PCN)‐224 for doxorubicin (DOX) loading and hyaluronic acid (HA) modification to obtain an intelligent nanoplatform of PCN@MnO 2 @DOX@HA (PMDH). Benefiting from the HA functionalization, PMDH prefers to accumulate in tumor sites and enhance the cellular uptake by CD44‐overexpressed tumor cells. Subsequently, the internalized PMDH could catalyze the abundant H 2 O 2 in cells into O 2 to relieve tumor hypoxia. Further, the MnO 2 nanoshells of PMDH could be degraded into Mn 2+ for magnetic resonance imaging with glutathione reduction and the release of DOX. By integrating the O 2 self‐sufficiency with glutathione reduction abilities, PMDH possesses highly potent chemo/photodynamic combination therapeutic effects against hypoxic tumors. Significantly, PMDH exhibits a good biocompatibility with a low cardiotoxicity and negligible systemic side effects, which provides a new insight in developing tumor microenvironment adaptable nanoplatforms for synergistic tumor theranostics.