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Yu J, Guo Z, Yan J, Bu C, Peng C, Li C, Mao R, Zhang J, Wang Z, Chen S, Yao M, Xie Z, Yang C, Yang YY, Yuan P, Ding X. Gastric Acid-Responsive ROS Nanogenerators for Effective Treatment of Helicobacter pylori Infection without Disrupting Homeostasis of Intestinal Flora. Adv Sci (Weinh) 2023:e2206957. [PMID: 37127895 PMCID: PMC10369278 DOI: 10.1002/advs.202206957] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/15/2023] [Indexed: 05/03/2023]
Abstract
Helicobacter pylori (H. pylori) has infected more than half of the world's population, and is the major cause of gastric cancer. The efficacy of standard antibiotic-based triple therapy is declining due to drug resistance development. Herein, a pH-responsive reactive oxygen species (ROS) nanogenerator (Fe-HMME@DHA@MPN) composed of acid-responsive metal polyphenol network (MPN) shell and mesoporous metal-organic nanostructure core [Fe-HMME (hematoporphyrin monomethyl ether, sonosensitizer)] loaded with dihydroartemisinin (DHA) is reported. These nanoparticles generate more ROS singlet oxygen than sonosensitizer HMME under ultrasonication, and this sonodynamic process is fueled by oxygen generated through Fenton/Fenton-like reactions of the degraded product in gastric acid Fe (II) and hydrogen peroxide (H2 O2 ) in the infection microenvironment. The encapsulated DHA, as a hydroperoxide source, is found to enhance the peroxidase-like activity of the Fe-HMME@DHA@MPN to generate ROS hydroxyl radical, beneficial for the microenvironment without sufficient H2 O2 . In vitro experiments demonstrate that the ROS nanogenerators are capable of killing multidrug-resistant H. pylori and removing biofilm, and ROS nanogenerators show high therapeutic efficacy in a H. pylori infection mouse model. Unlike the triple therapy, the nanogenerators display negligible side effects toward the normal gut microbiota. Taken together, these self-enhanced ROS nanogenerators have a great potential for treatment of H. pylori infection.
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Affiliation(s)
- Jiayin Yu
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Zhihao Guo
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Jiachang Yan
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Changxin Bu
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Chang Peng
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Cuie Li
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Science, 190 Kaiyuan Avenue, Guangzhou Science Park, Luogang District, Guangzhou, 510080, P. R. China
| | - Rui Mao
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Science, 190 Kaiyuan Avenue, Guangzhou Science Park, Luogang District, Guangzhou, 510080, P. R. China
| | - Jian Zhang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Science, 190 Kaiyuan Avenue, Guangzhou Science Park, Luogang District, Guangzhou, 510080, P. R. China
| | - Zhi Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Science, 190 Kaiyuan Avenue, Guangzhou Science Park, Luogang District, Guangzhou, 510080, P. R. China
| | - Shi Chen
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Meicun Yao
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Zhiyong Xie
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Chuan Yang
- Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
| | - Yi Yan Yang
- Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119288, Singapore
| | - Peiyan Yuan
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
| | - Xin Ding
- School of Pharmaceutical Science (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, P. R. China
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