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Xu J, Wang C, Zhang L, Zhao C, Zhao X, Wu J. In Situ Aggregated Nanomanganese Enhances Radiation-Induced Antitumor Immunity. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34450-34466. [PMID: 38941284 DOI: 10.1021/acsami.4c03838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/30/2024]
Abstract
Radiosensitizers play a pivotal role in enhancing radiotherapy (RT). One of the challenges in RT is the limited accumulation of nanoradiosensitizers and the difficulty in activating antitumor immunity. Herein, a smart strategy was used to achieve in situ aggregation of nanomanganese adjuvants (MnAuNP-C&B) to enhance RT-induced antitumor immunity. The aggregated MnAuNP-C&B system overcomes the shortcomings of small-sized nanoparticles that easily flow back into blood vessels and diffuse into surrounding tissues, and it also prolongs the retention time of nanomanganese within cancer cells and tumors. The MnAuNP-C&B system significantly enhances the radiosensitization effect in RT. Additionally, the pH-responsive disassembly of MnAuNP-C&B triggers the release of Mn2+, further promoting RT-induced activation of the STING pathway and eliciting robust antitumor immunity. Overall, our study presents a smart strategy wherein in situ aggregation of nanomanganese effectively inhibits tumor growth through radiosensitization and the activation of antitumor immunity.
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Affiliation(s)
- Jialong Xu
- Medical School of Nanjing University, Nanjing 210093, China
| | - Chao Wang
- Medical School of Nanjing University, Nanjing 210093, China
| | - Li Zhang
- Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China
| | - Chuan Zhao
- Medical School of Nanjing University, Nanjing 210093, China
| | - Xiaozhi Zhao
- Department of Andrology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210023, China
| | - Jinhui Wu
- Medical School of Nanjing University, Nanjing 210093, China
- Chemistry and Biomedicine Innovation Centre, Nanjing University, Nanjing 210023, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, China
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Wei H, Xie M, Chen M, Jiang Q, Wang T, Xing P. Shedding light on cellular dynamics: the progress in developing photoactivated fluorophores. Analyst 2024; 149:689-699. [PMID: 38180167 DOI: 10.1039/d3an01994b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Photoactivated fluorophores (PAFs) are highly effective imaging tools that exhibit a removal of caging groups upon light excitation, resulting in the restoration of their bright fluorescence. This unique property allows for precise control over the spatiotemporal aspects of small molecule substances, making them indispensable for studying protein labeling and small molecule signaling within live cells. In this comprehensive review, we explore the historical background of this field and emphasize recent advancements based on various reaction mechanisms. Additionally, we discuss the structures and applications of the PAFs. We firmly believe that the development of more novel PAFs will provide powerful tools to dynamically investigate cells and expand the applications of these techniques into new domains.
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Affiliation(s)
- Huihui Wei
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Mingli Xie
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Min Chen
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Qinhong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Tenghui Wang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Panfei Xing
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
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Fu YX, Guo WY, Wang N, Dai YJ, Zhang ZY, Sun XL, Yang WC, Yang GF. Diagnosis of Bacterial Plant Diseases via a Nitroreductase-Activated Fluorescent Sensor. Anal Chem 2022; 94:17692-17699. [PMID: 36469707 DOI: 10.1021/acs.analchem.2c04614] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Plant diseases caused by bacteria have become one of the serious problems that threaten human food security, which led to the remarkable reduction of agricultural yields and economic loss. Nitroreductase (NTR), as an important biomarker, is highly expressed in bacteria, and the level of NTR is closely related to the progression of pathogen infection. Therefore, the design of small-molecule fluorescent sensors targeting NTR is of great significance for the detection and diagnosis of plant pathogenic bacteria. In this study, a new fluorescent sensor targeting NTR was discovered and then successfully applied to the imaging of zebrafish and pathogenic bacteria. Most importantly, the developed sensor achieved the real-time diagnosis of Brassica napus L. infected with bacteria, which provides a promising tool for examining the temporal and spatial infection of plant pathogens in precision agriculture.
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Affiliation(s)
- Yi-Xuan Fu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Wu-Yingzheng Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Nan Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Yi-Jie Dai
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Zi-Ye Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Xin-Lin Sun
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Wen-Chao Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
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