1
|
Zeng Z, Fu C, Sun X, Niu M, Ren X, Tan L, Wu Q, Huang Z, Meng X. Reversing the immunosuppressive microenvironment with reduced redox level by microwave-chemo-immunostimulant Ce-Mn MOF for improved immunotherapy. J Nanobiotechnology 2022; 20:512. [PMID: 36463157 PMCID: PMC9719648 DOI: 10.1186/s12951-022-01699-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 11/05/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUNDS Reversing the immunosuppressive tumor microenvironment (TME) in the tumor is widely deemed to be an effective strategy to improve immune therapy. In particular, the redox balance in TME needs to be well controlled due to its critical role in mediating the functions of various cells, including cancer cells and immune-suppressive cells. RESULTS Here, we propose an efficient strategy to reshape the redox homeostasis to reverse immunosuppressive TME. Specifically, we developed a microwave-chemo-immunostimulant CMMCP to promote the infiltration of the tumor-T cells by simultaneously reducing the reactive oxygen species (ROS) and glutathione (GSH) and improving the oxygen (O2) levels in TME. The CMMCP was designed by loading chemotherapy drugs cisplatin into the bimetallic Ce-Mn MOF nanoparticles coated with polydopamine. The Ce-Mn MOF nanoparticles can effectively improve the catalytic decomposition of ROS into O2 under microwave irradiation, resulting in overcoming hypoxia and limited ROS generation. Besides, the activity of intracellular GSH in TME was reduced by the redox reaction with Ce-Mn MOF nanoparticles. The reprogrammed TME not only boosts the immunogenic cell death (ICD) induced by cisplatin and microwave hyperthermia but also gives rise to the polarization of pro-tumor M2-type macrophages to the anti-tumor M1-type ones. CONCLUSION Our in vivo experimental results demonstrate that the microwave-chemo-immunostimulant CMMCP significantly enhances the T cell infiltration and thus improves the antitumor effect. This study presents an easy, safe, and effective strategy for a whole-body antitumor effect after local treatment.
Collapse
Affiliation(s)
- Zhiheng Zeng
- grid.9227.e0000000119573309Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China ,grid.458502.e0000 0004 0644 7196CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing, 100190 China ,grid.13291.380000 0001 0807 1581College of Biomedical Engineering, Sichuan University, Chengdu, 610065 China
| | - Changhui Fu
- grid.9227.e0000000119573309Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China ,grid.458502.e0000 0004 0644 7196CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing, 100190 China
| | - Xiaohan Sun
- grid.412636.40000 0004 1757 9485Department of Interventional Radiology, The First Hospital of China Medical University, Shenyang, 110000 China
| | - Meng Niu
- grid.412636.40000 0004 1757 9485Department of Interventional Radiology, The First Hospital of China Medical University, Shenyang, 110000 China
| | - Xiangling Ren
- grid.9227.e0000000119573309Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China ,grid.458502.e0000 0004 0644 7196CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing, 100190 China
| | - Longfei Tan
- grid.9227.e0000000119573309Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China ,grid.458502.e0000 0004 0644 7196CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing, 100190 China
| | - Qiong Wu
- grid.9227.e0000000119573309Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China ,grid.458502.e0000 0004 0644 7196CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing, 100190 China
| | - Zhongbing Huang
- grid.13291.380000 0001 0807 1581College of Biomedical Engineering, Sichuan University, Chengdu, 610065 China
| | - Xianwei Meng
- grid.9227.e0000000119573309Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 China ,grid.458502.e0000 0004 0644 7196CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing, 100190 China
| |
Collapse
|
2
|
Li S, Zheng Z, Zhao Z, Wang Y, Yao Y, Liu Y, Zhang J, Zhang Z. CeO 2 Nanoparticle-Loaded MnO 2 Nanoflowers for Selective Catalytic Reduction of NO x with NH 3 at Low Temperatures. Molecules 2022; 27:molecules27154863. [PMID: 35956809 PMCID: PMC9369832 DOI: 10.3390/molecules27154863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022] Open
Abstract
CeO2 nanoparticle-loaded MnO2 nanoflowers, prepared by a hydrothermal method followed by an adsorption-calcination technique, were utilized for selective catalytic reduction (SCR) of NOx with NH3 at low temperatures. The effects of Ce/Mn ratio and thermal calcination temperature on the NH3-SCR activity of the CeO2-MnO2 nanocomposites were studied comprehensively. The as-prepared CeO2-MnO2 catalysts show high NOx reduction efficiency in the temperature range of 150-300 °C, with a complete NOx conversion at 200 °C for the optimal sample. The excellent NH3-SCR performance could be ascribed to high surface area, intimate contact, and strong synergistic interaction between CeO2 nanoparticles and MnO2 nanoflowers of the well-designed composite catalyst. The in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTs) characterizations evidence that the SCR reaction on the surface of the CeO2-MnO2 nanocomposites mainly follows the Langmuir-Hinshelwood (L-H) mechanism. Our work provides useful guidance for the development of composite oxide-based low temperature NH3-SCR catalysts.
Collapse
Affiliation(s)
- Shun Li
- Institute of Quantum and Sustainable Technology (IQST), School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;
| | - Zuquan Zheng
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
| | - Zhicheng Zhao
- Foshan (Southern China) Institute for New Materials, Foshan 528200, China; (Z.Z.); (Y.Y.)
| | - Youling Wang
- Shunde Graduate School, University of Science and Technology Beijing, Foshan 528399, China;
| | - Yao Yao
- Foshan (Southern China) Institute for New Materials, Foshan 528200, China; (Z.Z.); (Y.Y.)
| | - Yong Liu
- Foshan (Southern China) Institute for New Materials, Foshan 528200, China; (Z.Z.); (Y.Y.)
- Correspondence: (Y.L.); (J.Z.); (Z.Z.)
| | - Jianming Zhang
- Institute of Quantum and Sustainable Technology (IQST), School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;
- Correspondence: (Y.L.); (J.Z.); (Z.Z.)
| | - Zuotai Zhang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
- Correspondence: (Y.L.); (J.Z.); (Z.Z.)
| |
Collapse
|
3
|
Song L, Shu G, Ma K, Liu C, Tang S, Zhong S, Yue H, Liang B. A Bifunctional Multishell Catalyst with a Wide Operating Temperature Window for NO x Abatement by Ammonia-Selective Catalytic Reduction. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lei Song
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guoqiang Shu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Kui Ma
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Changjun Liu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
| | - Siyang Tang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Shan Zhong
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hairong Yue
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
| | - Bin Liang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
| |
Collapse
|
4
|
Xu G, Guo X, Cheng X, Yu J, Fang B. A review of Mn-based catalysts for low-temperature NH 3-SCR: NO x removal and H 2O/SO 2 resistance. NANOSCALE 2021; 13:7052-7080. [PMID: 33889905 DOI: 10.1039/d1nr00248a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The development of high-efficiency catalysts is the key to the low-temperature NH3-SCR technology. The introduction of SO2 and H2O will lead to poisoning and deactivation of the catalysts, which severely limits the development and application of NH3-SCR technology. This review introduces the necessity of NOx removal, explains the mechanisms of H2O and SO2 poisoning on NH3-SCR catalysts, highlights the Mn-based catalysts of different active metals and supports and their resistance to H2O and SO2, and analyses the relationship between metal modification, selection of support and preparation method, morphology and structure design and SO2/H2O resistance. Given the current problems, this review points out the future research focus of Mn-based catalysts and also puts forward corresponding countermeasures to solve the existing problems.
Collapse
Affiliation(s)
- Guiying Xu
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | | | | | | | | |
Collapse
|
5
|
Wu P, Jin X, Qiu Y, Ye D. Recent Progress of Thermocatalytic and Photo/Thermocatalytic Oxidation for VOCs Purification over Manganese-based Oxide Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:4268-4286. [PMID: 33720707 DOI: 10.1021/acs.est.0c08179] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Volatile organic compounds (VOCs) are one of the main sources of air pollution, which are of wide concern because of their toxicity and serious threat to the environment and human health. Catalytic oxidation has been proven to be a promising and effective technology for VOCs abatement in the presence of heat or light. As environmentally friendly and low-cost materials, manganese-based oxides are the most competitive and promising candidates for the catalytic degradation of VOCs in thermocatalysis or photo/thermocatalysis. This article summarizes the research and development on various manganese-based oxide catalysts, with emphasis on their thermocatalytic and photo/thermocatalytic purification of VOCs in recent years in detail. Single manganese oxides, manganese-based oxide composites, as well as improving strategies such as morphology regulation, heterojunction engineering, and surface decoration by metal doping or universal acid treatment are reviewed. Besides, manganese-based monoliths for practical VOCs abatementare also discussed. Meanwhile, relevant catalytic mechanisms are also summarized. Finally, the existing problems and prospect of manganese-based oxide catalysts for catalyzing combustion of VOCs are proposed.
Collapse
Affiliation(s)
- Peng Wu
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Xiaojing Jin
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
- Guangdong Provincial Key Lab of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yongcai Qiu
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China
| | - Daiqi Ye
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| |
Collapse
|