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Ong LL, Jan HM, Le HHT, Yang TC, Kuo CY, Feng AF, Mong KKT, Lin CH. Membrane lipid remodeling eradicates Helicobacter pylori by manipulating the cholesteryl 6'-acylglucoside biosynthesis. J Biomed Sci 2024; 31:44. [PMID: 38685037 PMCID: PMC11057186 DOI: 10.1186/s12929-024-01031-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/14/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Helicobacter pylori, the main cause of various gastric diseases, infects approximately half of the human population. This pathogen is auxotrophic for cholesterol which it converts to various cholesteryl α-glucoside derivatives, including cholesteryl 6'-acyl α-glucoside (CAG). Since the related biosynthetic enzymes can be translocated to the host cells, the acyl chain of CAG likely comes from its precursor phosphatidylethanolamine (PE) in the host membranes. This work aims at examining how the acyl chain of CAG and PE inhibits the membrane functions, especially bacterial adhesion. METHODS Eleven CAGs that differ in acyl chains were used to study the membrane properties of human gastric adenocarcinoma cells (AGS cells), including lipid rafts clustering (monitored by immunofluorescence with confocal microscopy) and lateral membrane fluidity (by the fluorescence recovery after photobleaching). Cell-based and mouse models were employed to study the degree of bacterial adhesion, the analyses of which were conducted by using flow cytometry and immunofluorescence staining, respectively. The lipidomes of H. pylori, AGS cells and H. pylori-AGS co-cultures were analyzed by Ultraperformance Liquid Chromatography-Tandem Mass Spectroscopy (UPLC-MS/MS) to examine the effect of PE(10:0)2, PE(18:0)2, PE(18:3)2, or PE(22:6)2 treatments. RESULTS CAG10:0, CAG18:3 and CAG22:6 were found to cause the most adverse effect on the bacterial adhesion. Further LC-MS analysis indicated that the treatment of PE(10:0)2 resulted in dual effects to inhibit the bacterial adhesion, including the generation of CAG10:0 and significant changes in the membrane compositions. The initial (1 h) lipidome changes involved in the incorporation of 10:0 acyl chains into dihydro- and phytosphingosine derivatives and ceramides. In contrast, after 16 h, glycerophospholipids displayed obvious increase in their very long chain fatty acids, monounsaturated and polyunsaturated fatty acids that are considered to enhance membrane fluidity. CONCLUSIONS The PE(10:0)2 treatment significantly reduced bacterial adhesion in both AGS cells and mouse models. Our approach of membrane remodeling has thus shown great promise as a new anti-H. pylori therapy.
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Affiliation(s)
- Lih-Lih Ong
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001, University Road, Eastern District, Hsinchu, 300093, Taiwan
- Institute of Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
| | - Hau-Ming Jan
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
- Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Hong-Hanh Thi Le
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
| | - Tsai-Chen Yang
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
| | - Chou-Yu Kuo
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
| | - Ai-Feng Feng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001, University Road, Eastern District, Hsinchu, 300093, Taiwan
| | - Kwok-Kong Tony Mong
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001, University Road, Eastern District, Hsinchu, 300093, Taiwan.
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, Taipei, 11529, Taiwan.
- Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617, Taiwan.
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唐 智, 符 立, 刘 人, 陈 昱, 别 明, 王 保. [Mechanisms of Helicobacter pylori Intracellular Infection and Reflections Concerning Clinical Practice]. Sichuan Da Xue Xue Bao Yi Xue Ban 2023; 54:1300-1305. [PMID: 38162071 PMCID: PMC10752795 DOI: 10.12182/20231160401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Indexed: 01/03/2024]
Abstract
Helicobacter pylori (H. pylori), for a long time, has generally been considered an extracellular bacterium. However, recent findings have shown that H. pylori can gain entry into host cells, evade attacks from the host immune system and the killing ability of medication, form stable intracellular ecological niche, and achieve re-release into the extracellular environment, thus causing recurrent infections. H. pylori intracellular infection causes cellular signaling and metabolic alterations, which may be closely associated with the pathogenesis and progression of tumors, thereby presenting new challenges for clinical eradicative treatment of H. pylori. Herein, examining this issue from a clinical perspective, we reviewed reported findings on the mechanisms of how H. pylori achieved intracellular infection, including the breaching of the host cell biological barrier, immune evasion, and resistance to autophagy. In addition, we discussed our reflections and the prospects of important questions concerning H. pylori, including the clinical prevention and control strategy, intracellular derivation, and the damage to host cells.
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Affiliation(s)
- 智慧 唐
- 四川大学华西基础医学与法医学院 (成都 610041)West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 立发 符
- 四川大学华西基础医学与法医学院 (成都 610041)West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 人捷 刘
- 四川大学华西基础医学与法医学院 (成都 610041)West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 昱作 陈
- 四川大学华西基础医学与法医学院 (成都 610041)West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - 明江 别
- 四川大学华西基础医学与法医学院 (成都 610041)West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
- 四川大学华西公共卫生学院/四川大学华西第四医院 (成都 610041)West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 保宁 王
- 四川大学华西基础医学与法医学院 (成都 610041)West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
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Nabavi-Rad A, Yadegar A, Sadeghi A, Aghdaei HA, Zali MR, Klionsky DJ, Yamaoka Y. The interaction between autophagy, Helicobacter pylori, and gut microbiota in gastric carcinogenesis. Trends Microbiol 2023; 31:1024-1043. [PMID: 37120362 PMCID: PMC10523907 DOI: 10.1016/j.tim.2023.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 05/01/2023]
Abstract
Chronic infection with Helicobacter pylori is the primary risk factor for the development of gastric cancer. Hindering our ability to comprehend the precise role of autophagy during H. pylori infection is the complexity of context-dependent autophagy signaling pathways. Recent and ongoing progress in understanding H. pylori virulence allows new frontiers of research for the crosstalk between autophagy and H. pylori. Novel approaches toward discovering autophagy signaling networks have further revealed their critical influence on the structure of gut microbiota and the metabolome. Here we intend to present a holistic view of the perplexing role of autophagy in H. pylori pathogenesis and carcinogenesis. We also discuss the intermediate role of autophagy in H. pylori-mediated modification of gut inflammatory responses and microbiota structure.
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Affiliation(s)
- Ali Nabavi-Rad
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Amir Sadeghi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Daniel J Klionsky
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan; Department of Medicine, Gastroenterology and Hepatology Section, Baylor College of Medicine, Houston, TX, USA; Research Center for Global and Local Infectious Diseases, Oita University, Oita, Japan.
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Mansuri S, Mukherjee T, Kanvah S. Fluorescent sterol probes for intracellular transport, imaging, and therapeutics. Curr Opin Chem Biol 2022; 71:102222. [PMID: 36219959 DOI: 10.1016/j.cbpa.2022.102222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/01/2022] [Accepted: 09/12/2022] [Indexed: 01/27/2023]
Abstract
Sterols play a significant role in many physiological processes affecting membrane organization, transport, permeability, and signal transduction. The development of fluorescent sterol analogs that have immediate functional relevance to the natural biomolecules is one approach to understanding the sterol-driven physiological processes. Visualizing cellular compartments with tailor-made fluorescent molecules through specific labeling methods enables organelle targeting and reveals dynamic information. In this review, we focus on the recent literature published between 2020 and 2022, with particular emphasis on extrinsic fluorophores and their investigations of sterol-driven biological processes involving sterol transport, biomolecular interactions, and biological imaging.
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Affiliation(s)
- Shabnam Mansuri
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382055, India
| | - Tarushyam Mukherjee
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382055, India
| | - Sriram Kanvah
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382055, India.
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