机构:[1]State Key Laboratory of Silkworm Genome Biology, School of Materials and Energy, Southwest University, Chongqing 400715, China.[2]Department of Nuclear Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, China.[3]Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
A hypoxic and acidic tumor microenvironment (TME) plays a significant role in cancer development through complex cellular signaling networks, and it is thus challenging to completely eradicate tumors via monotherapy. Here, PEGylated CoFe2O4 nanoflowers (CFP) with multiple enzymatic activities, serving as bioreactors responsive to TME cues, were synthesized via a typical solvothermal method for augmented sonodynamic therapy (SDT) and chemodynamic therapy (CDT) with elicitation of robust immune response. The CFP occupying multivalent elements (Co2+/3+, Fe2+/3+) exhibited strong Fenton-like and catalase-like activity. In another aspect, CFP itself is a brand-new sonosensitizer for high-performance SDT based on ultrasound-triggered electron (e-)/hole (h+) pair separation from the energy band with promptness and high efficiency. With efficient enrichment in tumorous tissue as revealed by magnetic resonance imaging, CPF could generate •OH for CDT relying on Fenton-like reactions. Moreover, catalase-mimicking CFP could react with endogenous H2O2 to generate molecular oxygen, and high O2 level may promote the production of 1O2 for SDT. What's more, the reactive oxygen species obtained from combined SDT/CDT could efficiently trigger immunogenic cell death through a synergistic therapy based on the elicitation of antitumor immunity with the aid of an immune checkpoint blockade for the sake of suppressing primary and distant tumors as well as lung metastasis. Taken together, this paradigm delivers useful insights for developing in-coming nanocomposites based on cobalt ferrite for cancer theranostics.
基金:
National Natural
Science Foundation of China (51703186, 32071375), Natural
Science Foundation of Chongqing, China (cstc2020jcyjmsxmX0755)
and Graduate Student’s Research and Innovation
Fund of Chongqing, China (CYB20095).
语种:
外文
PubmedID:
中科院(CAS)分区:
出版当年[2021]版:
大类|1 区材料科学
小类|1 区化学综合1 区物理化学1 区纳米科技1 区材料科学:综合
最新[2023]版:
大类|1 区材料科学
小类|1 区化学:综合1 区物理化学1 区材料科学:综合1 区纳米科技
第一作者:
第一作者机构:[1]State Key Laboratory of Silkworm Genome Biology, School of Materials and Energy, Southwest University, Chongqing 400715, China.[2]Department of Nuclear Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, China.
通讯作者:
推荐引用方式(GB/T 7714):
Fu Shiyan,Yang Ruihao,Ren Junjie,et al.Catalytically Active CoFe2O4 Nanoflowers for Augmented Sonodynamic and Chemodynamic Combination Therapy with Elicitation of Robust Immune Response.[J].ACS nano.2021,doi:10.1021/acsnano.1c03128.
APA:
Fu Shiyan,Yang Ruihao,Ren Junjie,Liu Jiahui,Zhang Lei...&Xue Peng.(2021).Catalytically Active CoFe2O4 Nanoflowers for Augmented Sonodynamic and Chemodynamic Combination Therapy with Elicitation of Robust Immune Response..ACS nano,,
MLA:
Fu Shiyan,et al."Catalytically Active CoFe2O4 Nanoflowers for Augmented Sonodynamic and Chemodynamic Combination Therapy with Elicitation of Robust Immune Response.".ACS nano .(2021)