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Wang H, Gu Y, Ju C, Li Y, Chen X, Zhou G, Zhang X, Liu C, Chen J, Han Y, Zhang J, Shao Z, Zhang M. Genetic characteristics and potential pathogenic agents in Campylobacter upsaliensis based on genomic analysis. Emerg Microbes Infect 2024; 13:2294857. [PMID: 38085548 PMCID: PMC10810667 DOI: 10.1080/22221751.2023.2294857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 12/11/2023] [Indexed: 01/26/2024]
Abstract
Campylobacter upsaliensis was the most common Campylobacter species in pets' gastrointestinal tracts and has been isolated from patients with bacteremia, hemolytic-uremic syndrome, spontaneous abortion, and Guillain-Barré syndrome. However, the genetic characteristics and the full extent of its significance as a human pathogen remain to be fully understood. This study involved an investigation for genomic analysis of 154 strains from different sources and additional antimicrobial resistance profiles of 26 strains for this species. The genomes contained 1,558-1,971 CDS and the genome sizes were estimated to vary from 1.53 Mb to 1.86 Mb, with an average GC content of 34.71%. The entire analyzed genomes could be divided into three clades (A, B, and C) based on ANI and phylogenomic analysis. Significantly, nearly all strains in Clade B were isolated from patient samples, and the virulence-related sequences FlgD, GmhA, and CdtC might serve as determining factors for the classification of Clade B. Half of the tested isolates had MIC values over 64 μg mL-1 for nalidixic acid, gentamicin, and streptomycin. Isolates from pets in China carried more resistant elements in the genomes. This study both provided a comprehensive profile of C. upsaliensis for its genomic features and suggested some pathogenic agents for human infection with this species.
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Affiliation(s)
- Hairui Wang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yixin Gu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Changyan Ju
- Nanshan Center for Disease Control and Prevention, Shenzhen, People’s Republic of China
| | - Ying Li
- Shunyi District Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Xiaoli Chen
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Guilan Zhou
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Xin Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Chang Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Jing Chen
- Meilianzhonghe Veterinary Hospital Companion Branch, Beijing, People’s Republic of China
| | - Yue Han
- Meilianzhonghe Veterinary Hospital Jingxi Branch, Beijing, People’s Republic of China
| | - Jianzhong Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Zhujun Shao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Maojun Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
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Lin CM, Meng Q, Li YJ, Zhang SX, Luo QX, Dai ZY. Causal associations between intermediate very-low-density lipoprotein cholesterol-to-total lipids ratio and peptic ulcer: A bidirectional Mendelian randomization study. World J Clin Cases 2024; 12:5729-5738. [DOI: 10.12998/wjcc.v12.i25.5729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/27/2024] [Accepted: 06/19/2024] [Indexed: 07/12/2024] Open
Abstract
BACKGROUND Previous epidemiologic investigations have consistently demonstrated a strong association between the ratio of cholesterol to total lipids in medium very-low-density lipoprotein (VLDL) and the occurrence of peptic ulcers (PU). However, the precise causal relationship between these factors remains ambiguous. Consequently, this study aims to elucidate the potential correlation between the ratio of cholesterol to total lipids in medium VLDL and the incidence of peptic ulcer.
AIM To investigate the ratio of cholesterol to total lipids in medium very-low-density lipoprotein (VLDL) association with PU via genetic methods, guiding future clinical research.
METHODS Genome-wide association study (GWAS) datasets for the ratio of cholesterol to total lipids in intermediate VLDL and peptic ulcer were retrieved from the IEU OpenGWAS project (https://gwas.mrcieu.ac.uk). For the forward Mendelian randomization (MR) analysis, 72 single nucleotide polymorphisms (SNPs) were identified as instrumental variables. These SNPs were selected based on their association with the ratio of cholesterol to total lipids in intermediate VLDL, with peptic ulcer as the outcome variable. Conversely, for the inverse MR analysis, no SNPs were identified with peptic ulcer as the exposure variable and the ratio of cholesterol to total lipids in intermediate VLDL as the outcome. All MR analyses utilized inverse variance weighted (IVW) as the primary analytical method. Additionally, weighted median and MR-Egger methods were employed as supplementary analytical approaches to assess causal effects. Egger regression was used as a supplementary method to evaluate potential directional pleiotropy. Heterogeneity and multiplicity tests were conducted using the leave-one-out method to evaluate result stability and mitigate biases associated with multiple testing.
RESULTS The genetically predicted ratio of cholesterol to total lipids in medium VLDL was significantly associated with an elevated risk of peptic ulcer (IVW: OR = 2.557, 95%CI = 1.274-5.132, P = 0.008). However, no causal association of peptic ulcer with the ratio of cholesterol to total lipids in medium VLDL was observed in the inverse Mendelian randomization analysis.
CONCLUSION In conclusion, our study reveals a significant association between the ratio of cholesterol to total lipids in medium VLDL and an elevated risk of peptic ulcers. However, further validation through laboratory investigations and larger-scale studies is warranted to strengthen the evidence and confirm the causal relationship between these factors.
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Affiliation(s)
- Chun-Mei Lin
- Postgraduate Student, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Qian Meng
- Postgraduate Student, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Ying-Jun Li
- Postgraduate Student, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Shuang-Xi Zhang
- Department of Gastroenterology, Guangzhou University of Chinese Medicine Shunde Hospital, Foshan 528300, Guangdong Province, China
| | - Qiong-Xi Luo
- Postgraduate Student, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Zhen-Yu Dai
- Postgraduate Student, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
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Bui NN, Li CY, Wang LY, Chen YA, Kao WH, Chou LF, Hsieh JT, Lin H, Lai CH. Clostridium scindens metabolites trigger prostate cancer progression through androgen receptor signaling. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2023; 56:246-256. [PMID: 36639348 DOI: 10.1016/j.jmii.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/21/2022] [Accepted: 12/24/2022] [Indexed: 01/04/2023]
Abstract
Prostate cancer (PCa) is one of the most common malignancies in men; recently, PCa-related mortality has increased worldwide. Although androgen deprivation therapy (ADT) is the standard treatment for PCa, patients often develop aggressive castration-resistant PCa (CRPC), indicating the presence of an alternative source of androgen. Clostridium scindens is a member of the gut microbiota and can convert cortisol to 11β-hydroxyandrostenedione (11β-OHA), which is a potent androgen precursor. However, the effect of C. scindens on PCa progression has not been determined. In this study, androgen-dependent PCa cells (LNCaP) were employed to investigate whether C. scindens-derived metabolites activate androgen receptor (AR), which is a pivotal step in the development of PCa. Results showed that cortisol metabolites derived from C. scindens-conditioned medium promoted proliferation and enhanced migration of PCa cells. Furthermore, cells treated with these metabolites presented activated AR and stimulated AR-regulated genes. These findings reveal that C. scindens has the potential to promote PCa progression via the activation of AR signaling. Further studies on the gut-prostate axis may help unravel an alternative source of androgen that triggers CRPC exacerbation.
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Affiliation(s)
- Ngoc-Niem Bui
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan; Faculty of Medicine, Can Tho University of Medicine and Pharmacy, Can Tho, Viet Nam
| | - Chen-Yi Li
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan
| | - Ling-Yu Wang
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan
| | - Yu-An Chen
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Wei-Hsiang Kao
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Li-Fang Chou
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan; Kidney Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ho Lin
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Ho Lai
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan; Department of Medical Research, School of Medicine, China Medical University and Hospital, Taichung, Taiwan; Department of Nursing, Asia University, Taichung, Taiwan; Molecular Infectious Disease Research Center, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taiwan.
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Lannes-Costa PS, Pimentel BADS, Nagao PE. Role of Caveolin-1 in Sepsis – A Mini-Review. Front Immunol 2022; 13:902907. [PMID: 35911737 PMCID: PMC9334647 DOI: 10.3389/fimmu.2022.902907] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/23/2022] [Indexed: 11/23/2022] Open
Abstract
Sepsis is a generalized disease characterized by an extreme response to a severe infection. Moreover, challenges remain in the diagnosis, treatment and management of septic patients. In this mini-review we demonstrate developments on cellular pathogenesis and the role of Caveolin-1 (Cav-1) in sepsis. Studies have shown that Cav-1 has a significant role in sepsis through the regulation of membrane traffic and intracellular signaling pathways. In addition, activation of apoptosis/autophagy is considered relevant for the progression and development of sepsis. However, how Cav-1 is involved in sepsis remains unclear, and the precise mechanisms need to be further investigated. Finally, the role of Cav-1 in altering cell permeability during inflammation, in sepsis caused by microorganisms, apoptosis/autophagy activation and new therapies under study are discussed in this mini-review.
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Lai CH, Lin TL, Huang MZ, Li SW, Wu HY, Chiu YF, Yang CY, Chiu CH, Lai HC. Gut Commensal Parabacteroides goldsteinii MTS01 Alters Gut Microbiota Composition and Reduces Cholesterol to Mitigate Helicobacter pylori-Induced Pathogenesis. Front Immunol 2022; 13:916848. [PMID: 35844600 PMCID: PMC9281563 DOI: 10.3389/fimmu.2022.916848] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 06/01/2022] [Indexed: 12/12/2022] Open
Abstract
Helicobacter pylori infection is closely associated with various gastrointestinal diseases and poses a serious threat to human health owing to its increasing antimicrobial resistance. H. pylori possesses two major virulence factors, vacuolating cytotoxin A (VacA) and cytotoxin-associated gene A (CagA), which are involved in its pathogenesis. Probiotics have recently been used to eradicate H. pylori infection and reduce the adverse effects of antibiotic-based therapies. Parabacteroides goldsteinii MTS01 is a novel next-generation probiotic (NGP) with activities that can alleviate specific diseases by altering the gut microbiota. However, the mechanism by which P. goldsteinii MTS01 exerts its probiotic effects against H. pylori infection remains unclear. Our results showed that administration of P. goldsteinii MTS01 to H. pylori-infected model mice altered the composition of the gut microbiota and significantly reduced serum cholesterol levels, which mitigated H. pylori-induced gastric inflammation. In addition, the pathogenic effects of H. pylori VacA and CagA on gastric epithelial cells were markedly abrogated by treatment with P. goldsteinii MTS01. These results indicate that P. goldsteinii MTS01 can modulate gut microbiota composition and has anti-virulence factor functions, and thus could be developed as a novel functional probiotic for reducing H. pylori-induced pathogenesis.
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Affiliation(s)
- Chih-Ho Lai
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Department of Pediatrics, Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Department of Microbiology, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Nursing, Asia University, Taichung, Taiwan
- *Correspondence: Chih-Ho Lai, ; Hsin-Chih Lai,
| | - Tzu-Lung Lin
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Microbiota Research Center and Emerging Viral Infections Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Mei-Zi Huang
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Shiao-Wen Li
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Hui-Yu Wu
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Ya-Fang Chiu
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Microbiota Research Center and Emerging Viral Infections Research Center, Chang Gung University, Taoyuan, Taiwan
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chia-Yu Yang
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Cheng-Hsun Chiu
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Department of Pediatrics, Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Hsin-Chih Lai
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Microbiota Research Center and Emerging Viral Infections Research Center, Chang Gung University, Taoyuan, Taiwan
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Medical Research Center, Xiamen Chang Gung hospital, Xiamen, China
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
- *Correspondence: Chih-Ho Lai, ; Hsin-Chih Lai,
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Hsu CY, Yeh JY, Chen CY, Wu HY, Chiang MH, Wu CL, Lin HJ, Chiu CH, Lai CH. Helicobacter pylori cholesterol-α-glucosyltransferase manipulates cholesterol for bacterial adherence to gastric epithelial cells. Virulence 2021; 12:2341-2351. [PMID: 34506250 PMCID: PMC8437457 DOI: 10.1080/21505594.2021.1969171] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori infection is associated with several gastrointestinal diseases, including gastritis, peptic ulcers, and gastric cancer. Infection of cells with H. pylori is dependent on lipid rafts, which are cholesterol-rich microdomains located in the cell membrane. H. pylori cholesterol-α-glucosyltransferase (CGT) catalyzes the conversion of membrane cholesterol to cholesteryl glucosides, which can be incorporated into the bacterial cell wall, facilitating evasion from immune defense and colonization in the host. However, the detailed mechanisms underlying this process remain to be explored. In this study, we discovered for the first time that H. pylori CGT could promote adherence to gastric epithelial cells in a cholesterol-dependent manner. Externalization of cell membrane phosphatidylserine (PS) is crucial for enhancement of binding of H. pylori to cells by CGT and for cytotoxin-associated gene A (CagA)-induced pathogenesis. Furthermore, exogenous cholesterol interferes with the actions of H. pylori CGT to catalyze cellular cholesterol, which impedes bacterial binding to cells and attenuates subsequent inflammation, indicating that the initial attachment of H. pylori to cells is closely dependent on host cholesterol. These results provide evidence that CGT contributes to H. pylori infectivity and it may serve as a key target for the treatment of H. pylori-associated diseases.
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Affiliation(s)
- Chung-Yao Hsu
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jia-Yin Yeh
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Ya Chen
- Department of Laboratory Medicine, Taichung Veterans General Hospital Chiayi Branch, Chiayi, Taiwan
| | - Hui-Yu Wu
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Meng-Hsuan Chiang
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Molecular Infectious Disease Research Center, Department of Pediatrics, Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Chia-Lin Wu
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Molecular Infectious Disease Research Center, Department of Pediatrics, Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Hwai-Jeng Lin
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Shuang-Ho Hospital, New Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Cheng-Hsun Chiu
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Molecular Infectious Disease Research Center, Department of Pediatrics, Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Chih-Ho Lai
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Molecular Infectious Disease Research Center, Department of Pediatrics, Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taiwan.,Department of Microbiology, School of Medicine, China Medical University, Taichung, Taiwan.,Department of Nursing, Asia University, Taichung, Taiwan
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