1
|
Yde Aagaard ME, Frahm Kirk K, Linde Nielsen H, Steffensen R, Nielsen H. Campylobacter concisus from chronic inflammatory bowel diseases stimulates IL-8 production in HT-29 cells. Gut Pathog 2023; 15:5. [PMID: 36782333 PMCID: PMC9926846 DOI: 10.1186/s13099-023-00532-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
The emerging pathogen Campylobacter concisus has been isolated from patients with gastrointestinal diseases; however, it is also present in the gut of healthy individuals. The aim of this study was to compare IL-8 production in HT-29 cells after infection with C. concisus from different gastrointestinal disease phenotypes. Additionally, to investigate whether differentiation of isolates in genomospecies (GS1 and GS2) or presence of the zot gene, encoding the Zot toxin, affects IL-8 production. A total of 37 C. concisus isolates from patients with microscopic colitis (n = 20), ulcerative colitis (n = 5), Crohn's disease (n = 5), diarrhoea (n = 2) and from healthy controls (n = 5) were used. Intestinal HT-29 cells were infected and incubated for 24 h. Supernatants were subsequently removed and analysed for IL-8 by MILLIPLEX. All isolates were able to stimulate IL-8 production and IL-8 levels were higher than in non-infected HT-29 cells. No difference was observed between disease phenotypes or GS1 and GS2, whereas presence of the zot gene showed a tendency towards higher IL-8 production. Further investigations in other inflammatory and physiological models are needed to conclude whether C. concisus strains from different gastrointestinal disease phenotypes differ in pathogenic potential and play a part in gastrointestinal disease.
Collapse
Affiliation(s)
- Marta Emilie Yde Aagaard
- Department of Infectious Diseases, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark.
| | - Karina Frahm Kirk
- grid.27530.330000 0004 0646 7349Department of Infectious Diseases, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
| | - Hans Linde Nielsen
- grid.5117.20000 0001 0742 471XDepartment of Clinical Medicine, Aalborg University, Søndre Skovvej 15, 9000 Aalborg, Denmark ,grid.27530.330000 0004 0646 7349Department of Clinical Microbiology, Aalborg University Hospital, Mølleparkvej 10, 9000 Aalborg, Denmark
| | - Rudi Steffensen
- grid.27530.330000 0004 0646 7349Department of Clinical Immunology, Aalborg University Hospital, Urbansgade 32, 9000 Aalborg, Denmark
| | - Henrik Nielsen
- grid.27530.330000 0004 0646 7349Department of Infectious Diseases, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark ,grid.5117.20000 0001 0742 471XDepartment of Clinical Medicine, Aalborg University, Søndre Skovvej 15, 9000 Aalborg, Denmark
| |
Collapse
|
2
|
Muacevic A, Adler JR, Sano C, Ohta R. A Case of Pseudoappendicitis Caused by Campylobacter Enteritis Diagnosed by Gram Staining and Direct Microscopic Investigation of Stool Specimen. Cureus 2023; 15:e33980. [PMID: 36824554 PMCID: PMC9941024 DOI: 10.7759/cureus.33980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2023] [Indexed: 01/21/2023] Open
Abstract
Campylobacter infection may progress to a systemic infection through the intestinal tract. In many cases, symptoms are within the self-limiting range and do not require multidisciplinary treatment. In contrast, systemic infections in younger patients may be more severe and require hospitalization. Many differential diagnoses are considered when Campylobacter infection presents with severe abdominal pain, and the initial diagnosis may be difficult. We encountered a patient with Campylobacter infection who presented with acute-onset fever and general malaise. We diagnosed the case in a resource-poor setting by performing Gram staining of stool samples and fecal microscopy. This case suggests that a diagnosis of Campylobacter pseudoappendicitis can be made efficiently by combining various stool tests rather than waiting for culture results.
Collapse
|
3
|
Occurrence and seasonality of Campylobacter spp. in Portuguese dairy farms. Int J Food Microbiol 2022; 383:109961. [DOI: 10.1016/j.ijfoodmicro.2022.109961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/23/2022]
|
4
|
Vidyadharani G, Vijaya Bhavadharani HK, Sathishnath P, Ramanathan S, Sariga P, Sandhya A, Subikshaa S, Sugumar S. Present and pioneer methods of early detection of food borne pathogens. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:2087-2107. [PMID: 35602455 DOI: 10.1007/s13197-021-05130-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 11/27/2022]
Abstract
Food-borne pathogens are a severe threat to human illness and death world-wide. Researchers have reported more than 250 food-borne diseases. Most of these are infections caused by a wide variety of bacteria, viruses, and parasites. It has a significant economic impact also. Detection of pathogenic microbes is thus essential for food safety. Such identification techniques could meet the following parameters viz., the accuracy of detection techniques that are quick, efficient, economical, highly sensitive, specific, and non-labor intensive. The various available methods for detecting food pathogens are classified into different groups, each having its advantages and disadvantages. The conventional methods are usually the first choice of detection even though they are laborious. Modern techniques such as biosensors, immunological assays, and macromolecule-based (nucleic acid) methods are being developed and refined to overcome traditional methods' limitations. Early detection of pathogens and secure food safety at each stage of food processing to storage, utilizing improved methodologies are mandatory. This review summarizes the deadly food pathogens leading to significant outbreaks and discusses the importance of early detection methods and advanced detection methods in comparison.
Collapse
Affiliation(s)
- G Vidyadharani
- Department of Microbiology, Valliammal College for Women, Chennai, TamilNadu 600102 India
| | - H K Vijaya Bhavadharani
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| | - P Sathishnath
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| | - Shruti Ramanathan
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| | - P Sariga
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| | - A Sandhya
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| | - S Subikshaa
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| | - Shobana Sugumar
- Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Kanchipuram, Chennai, Tamilnadu 603203 India
| |
Collapse
|
5
|
Zang X, Huang P, Li J, Jiao X, Huang J. Genomic Relatedness, Antibiotic Resistance and Virulence Traits of Campylobacter jejuni HS19 Isolates From Cattle in China Indicate Pathogenic Potential. Front Microbiol 2021; 12:783750. [PMID: 34956150 PMCID: PMC8698899 DOI: 10.3389/fmicb.2021.783750] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/08/2021] [Indexed: 11/30/2022] Open
Abstract
Although campylobacteriosis is a zoonotic foodborne illness, high-risk isolates from animal sources are rarely characterized, and the pathogenic potential of zoonotic strains remains an obstacle to effective intervention against human infection. HS19 has been acknowledged as a maker serotype represented by Campylobacter jejuni (C. jejuni) isolates from patients with post-infection Guillain-Barré syndrome (GBS), which is circulation in developed countries. However, a previous serotype epidemiological study of C. jejuni isolates in an animal population revealed that HS19 was also prevalent in isolates from cattle in China. In this study, to investigate the hazardous potential of zoonotic strains, 14 HS19 isolates from cattle were systematically characterized both by genotype and phenotype. The results showed that all of these cattle isolates belonged to the ST-22 complex, a high-risk lineage represented by 77.2% HS19 clinical isolates from patients worldwide in the PubMLST database, indicating that the ST-22 complex is the prominent clonal complex of HS19 isolates, as well as the possibility of clonal spread of HS19 isolates across different regions and hosts. Nevertheless, these cattle strains clustered closely with the HS19 isolates from patients, suggesting a remarkable phylogenetic relatedness and genomic similarity. Importantly, both tetracycline genes tet(O) and gyrA (T86I) reached a higher proportional representation among the cattle isolates than among the human clinical isolates. A worrying level of multidrug resistance (MDR) was observed in all the cattle isolates, and two MDR profiles of the cattle isolates also existed in human clinical isolates. Notably, although shared with the same serotype HS19 and sequence type ST-22, 35.7% of cattle isolates induced severe gastrointestinal pathology in the IL-10–/– C57BL/6 mice model, indicating that some bacteria could change due to host adaptation to induce a disease epidemic, thus the associated genetic elements deserve further investigation. In this study, HS19 isolates from cattle were first characterized by a systematic evaluation of bacterial genomics and in vitro virulence, which improved our understanding of the potential zoonotic hazard from food animal isolates with high-risk serotypes, and provided critical information for the development of targeted C. jejuni mitigation strategies.
Collapse
Affiliation(s)
- Xiaoqi Zang
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Pingyu Huang
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou, China
| | - Jie Li
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Xinan Jiao
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou, China
| | - Jinlin Huang
- Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou, China
- *Correspondence: Jinlin Huang,
| |
Collapse
|