1
|
Wang J, Feng J, Jia W, Yuan T, He X, Wu Q, Peng F, Gao W, Yang Z, Tao Y, Li Q. Genomic and phenotypic analysis of a novel clinical isolate of Corynebacterium pyruviciproducens. BMC Microbiol 2023; 23:385. [PMID: 38053056 PMCID: PMC10699042 DOI: 10.1186/s12866-023-03075-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/18/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Corynebacterium pyruviciproducens is a recently described species of Corynebacterium. There are few reports on the microbiological characteristics of the new species, and there is a lack of reports on the genomic analysis of the species. RESULTS This study involved a clinical isolate from the pus of a hospital patient with sebaceous gland abscesses. The clinically isolated strain was identified as C. pyruviciproducens strain WYJY-01. In this study, referring to Koch's postulates, we observed the pathological changes of animal models infected by intraperitoneal injection and subcutaneous injection of pure culture of the strain WYJY-01. Furthermore, the strain WYJY-01 was isolated and cultured again from animal models' subcutaneous abscess drainage fluid. Subsequently, the genomics of the strain WYJY-01 was analyzed. By comparing various gene databases, this study predicted the core secondary metabolite gene cluster of the strain WYJY-01, virulence factor genes carried by prophage, pathogenicity islands, and resistance islands. In addition, the genomes of C. pyruviciproducens strain WYJY-01, ATCC BAA-1742 T, and UMB0763 were analyzed by comparative genomics, and the differential genes of strain WYJY-01 were compared, and their functions were analyzed. CONCLUSION The findings showed that the strain WYJY-01 had pathogenicity, supplementing the phenotype characteristics of C. pyruviciproducens. Meanwhile, this research revealed the possible molecular mechanism of the pathogenicity of the strain WYJY-01 at the gene level through whole genome sequence analysis, providing a molecular basis for further research.
Collapse
Affiliation(s)
- Jiaqi Wang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, PR China
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong, 261053, PR China
| | - Jiajia Feng
- Clinical Laboratory, Weifang Maternal and Child Health Care Hospital, Weifang, Shandong, 261011, PR China
| | - Wei Jia
- Clinical Laboratory, Weifang People's Hospital, Weifang, Shandong, 261000, PR China
| | - Tingxun Yuan
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, PR China
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong, 261053, PR China
| | - Xinyu He
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, PR China
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong, 261053, PR China
| | - Qianqian Wu
- Clinical Laboratory, the Affiliated Hospital of Weifang Medical University, Weifang, 261031, PR China
| | - Fujun Peng
- School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Wei Gao
- Key Lab for Immunology in Universities of Shandong Province, Weifang Medical University, Weifang, Shandong, 261053, PR China
| | - Zhongfa Yang
- School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Yuanyong Tao
- Clinical Laboratory, the Affiliated Hospital of Weifang Medical University, Weifang, 261031, PR China.
| | - Qian Li
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, PR China.
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong, 261053, PR China.
| |
Collapse
|
2
|
Asuncion P, Liu C, Castro R, Yon V, Rosas M, Hooshmand S, Kern M, Hong MY. The effects of fresh mango consumption on gut health and microbiome - Randomized controlled trial. Food Sci Nutr 2023; 11:2069-2078. [PMID: 37051355 PMCID: PMC10084975 DOI: 10.1002/fsn3.3243] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 12/19/2022] [Accepted: 01/16/2023] [Indexed: 02/04/2023] Open
Abstract
Some individual fruits have been widely researched for their effects on overall health and correlations with chronic diseases. The beneficial effects of mango supplementation on metabolic diseases have been detected. However, research into mango consumption on gut health, including the microbiome, is limited to processed mango preparations or peels. Our goal was to examine the effects of fresh mango consumption on the gut microbiome, gut permeability proteins, and bowel movement habits in overweight/obese individuals. In a 12-week crossover design study, 27 participants consumed 100 kcal/day of either mangos or low-fat cookies with a washout period of 4 weeks. The mango intervention showed higher Shannon-Wiener and Simpson alpha diversity indices of the microbiome than the low-fat cookie intervention in week 4. Significant differences in beta diversity of the microbiome were found between diet interventions at week 12. Mango consumption increased the abundance of Prevotella maculosa, Corynebacterium pyruviciproducens, and Mogibacterium timidum while it decreased Prevotella copri. Low-fat cookie intake increased Cyanobacterium aponinum and Desulfovibrio butyratiphilus and reduced Alloscardovia omnicolens. There were no significant differences in circulating gut permeability protein (ZO-1, claudin-2, and occludin) levels. There was a slight increase in the amount of bowel movement with mango consumption, but no significant findings for frequency, consistency, strain, pain, and constipation in bowel movement between trials. Given these results, it can be concluded that consumption of mango may have positive effects on the gut health, which may yield possible health benefits for chronic disease that deserve further study.
Collapse
Affiliation(s)
- Pia Asuncion
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Changqi Liu
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Robert Castro
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Viviana Yon
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Martin Rosas
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Shirin Hooshmand
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Mark Kern
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| | - Mee Young Hong
- School of Exercise and Nutritional SciencesSan Diego State UniversitySan DiegoCaliforniaUSA
| |
Collapse
|
3
|
Lee AH, Jha AR, Do S, Scarsella E, Shmalberg J, Schauwecker A, Steelman AJ, Honaker RW, Swanson KS. Dietary enrichment of resistant starches or fibers differentially alter the feline fecal microbiome and metabolite profile. Anim Microbiome 2022; 4:61. [PMID: 36471455 PMCID: PMC9720964 DOI: 10.1186/s42523-022-00213-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 11/18/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND Cats are strict carnivores but possess a complex gastrointestinal (GI) microbial community that actively ferments dietary substrates that are not digested and reach the colon. The GI microbiota responses to dietary inclusion of resistant starches versus fibers have not been tested in cats. Thus, our objective was to evaluate the effects of diets enriched in resistant starch or fibers on the fecal characteristics, microbiome, and metabolite profiles of cats. Twelve healthy adult domestic shorthair cats (age = 9.6 ± 4.0 year; body weight = 3.9 ± 1.0 kg) were used in a replicated 3 × 3 Latin square design to test diets that were enriched with: (1) resistant starch (ERS), (2) a fiber-prebiotic-probiotic blend (FPPB), or (3) a fiber-prebiotic-probiotic blend + immune-modulating ingredients (iFPPB). In each 28-day period, 22 days of diet adaptation was followed by fecal and blood sample collection. Fecal samples were used for shotgun metagenomic sequencing. In addition, fecal and blood metabolite measurements and white blood cell stimulation was performed to assess immune function. RESULTS A total of 1690 bacterial species were identified, with 259 species differing between fiber-rich and ERS treatments. In comparison with fiber-rich treatments that increased diversity and promoted Firmicutes and Bacteroidetes populations, resistant starch reduced microbial diversity and fecal pH, led to a bloom in Actinobacteria, and modified Kyoto Encyclopedia of Genes and Genomes orthology (KO) terms pertaining to starch and sucrose metabolism, fatty acid biosynthesis and metabolism, epithelial cell signaling, among others. Resistant starch also differentially modified fecal metabolite concentrations with relevance to GI and overall host health (increased butyrate; decreased propionate and protein catabolites - branched-chain fatty acids; phenols and indoles; ammonia) and reduced blood cholesterol, which correlated strongly with microbial taxa and KO terms, and allowed for a high predictive efficiency of diet groups by random forest analysis. CONCLUSION Even though domestic cats and other carnivores evolved by eating low-carbohydrate diets rich in protein and fat, our results demonstrate that the feline microbiome and metabolite profiles are highly responsive to dietary change and in directions that are predictable.
Collapse
Affiliation(s)
- Anne H Lee
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Aashish R Jha
- Genetic Heritage Group, Program in Biology, New York University Abu Dhabi, Abu Dhabi, UAE
- NomNomNow, Inc., Oakland, CA, 94607, USA
| | - Sungho Do
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Elisa Scarsella
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Justin Shmalberg
- NomNomNow, Inc., Oakland, CA, 94607, USA
- Department of Comparative, Diagnostic and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Amy Schauwecker
- PetSmart Proprietary Brand Product Development, Phoenix, AZ, 85080, USA
| | - Andrew J Steelman
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | | | - Kelly S Swanson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- 162 Animal Sciences Laboratory, 1207 West Gregory Drive, M/C 630, Urbana, IL, 61801, USA.
| |
Collapse
|
4
|
Wang L, Ma Y, Shi J, Zhang Y, Tong J, Han Q. Corynebacterium pyruviciproducens-peptidoglycan: A novel bacterial peptidoglycan inhibiting overexpression of MyD88 in macrophages. EUR J INFLAMM 2022. [DOI: 10.1177/1721727x221095378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: Bacterial peptidoglycan (PGN) is an essential ligand of TLR2 inducing inflammatory damage by boosting MyD88 overexpression in pathogen invasion, such as Methicillin-resistant Staphylococcus aureus (MRSA) infection. CP-PGN is a novel PGN from an adjuvant bacterium, displaying anti-infection immune regulation. This study aimed to clarify the unique moderation of MyD88 expression by CP-PGN. Methods: Compared with other ligands of TLR2, high expression of MyD88 in macrophages was established by MRSA and virus to investigate the immunomodulation of CP-PGN. Results: Compared with PGN derived from MRSA (M-PGN) and chemosynthetic Pam3CSK4 of model agonists of TLR2, CP-PGN could inhibit overexpression of MyD88 in a time- and dose-dependent way in infected macrophages by MRSA or Abelson leukemia virus. CP-PGN also promoted more anti-inflammatory IL-10 and less pro-inflammatory TNF-α in immature primary macrophages. Furthermore, IL-10 secretion induced by CP-PGN was reduced most significantly by blocking the dimer formation of MyD88 with ST2825 and lowering down expression by si-MyD88. Conclusion: CP-PGN could inhibit MyD88 overexpression by infection to moderate inflammatory cytokines. Therefore, CP-PGN is a novel potential ligand of TLR2 to induce inflammatory balance in the process of host defense against invading pathogens.
Collapse
Affiliation(s)
- Lin Wang
- Center of Clinical Laboratory, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, People’s Republic of China
| | - Yuan Ma
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China
| | - Jinfang Shi
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China
| | - Yang Zhang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Anhui Medical University, Hefei, People’s Republic of China
| | - Jia Tong
- Department of Immunology, Jiangsu University, Zhenjiang, People’s Republic of China
| | - Qingzhen Han
- Center of Clinical Laboratory, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, People’s Republic of China
| |
Collapse
|
5
|
Jespersen JC, Richert S, Cesar de Paula Dorigam J, Oelschlager ML, Dilger RN. Effects of lysine biomass supplementation on growth performance and clinical indicators in broiler chickens. Poult Sci 2020; 100:100971. [PMID: 33516469 PMCID: PMC7936182 DOI: 10.1016/j.psj.2020.12.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 12/04/2020] [Accepted: 12/26/2020] [Indexed: 11/25/2022] Open
Abstract
Production of crystalline amino acids (AA) through microbial fermentation concomitantly provides an AA-enriched biomass that may serve as a cost-effective supplement for broiler chickens. We investigated the effects of feeding a fermentation biomass product containing approximately 62% Lys on growth performance, organ growth, and clinical outcomes of broilers. Beginning at 2 d post-hatch, a total of 360 Ross 308 chicks were randomly assigned to 1 of 5 treatments provided to 12 replicate cages of 6 birds. Practical corn-soybean meal-based dietary treatments included: negative control (NC; no supplementation of L-Lys, 1.01 and 0.86% standardized ileal digestible Lys in starter and grower phases, respectively), NC + 0.23% L-Lys HCl (positive control; PC), and NC supplemented with 0.30, 0.90, or 1.50% Lys biomass (LB) in both phases. Feed and water were provided ad libitum throughout the study. Individual bird and feeder weights were recorded on study day 0, 10, 21, and 35. At study conclusion, birds from each treatment were randomly selected to collect blood and tissue samples. The PC and 0.30% LB diets elicited similar overall (day 0–35) body weight gain and birds were heavier (P < 0.001) than the NC and other LB treatments. The PC, 0.30% LB, and 0.90% LB groups had better (P < 0.001) overall feed conversion ratio than NC. Some LB-supplemented treatments elicited increased (P < 0.001) relative spleen and ileum weight compared with NC and PC. Heterophils were increased (P < 0.001) in LB treatments compared with PC and NC. Lymphocytes were decreased (P < 0.001) in LB treatments compared with NC, and 1.50% LB was similar to PC. This resulted in an increased (P < 0.001) heterophil-to-lymphocyte ratio in some LB treatments, which may have resulted from general AA supplementation or the LB product. Collectively, these results suggest that addition of up to 0.30% LB restored growth performance when added to a Lys-deficient practical diet and elicited results identical to the Lys-adequate PC diet with no negative clinical effects.
Collapse
Affiliation(s)
| | - Susann Richert
- Evonik Operations GmbH, Nutrition & Care, Hanau-Wolfgang, Germany
| | | | | | - Ryan N Dilger
- Department of Animal Sciences, University of Illinois, Urbana, USA.
| |
Collapse
|
6
|
Satora M, Magdziarz M, Rząsa A, Rypuła K, Płoneczka-Janeczko K. Insight into the intestinal microbiome of farrowing sows following the administration of garlic (Allium sativum) extract and probiotic bacteria cultures under farming conditions. BMC Vet Res 2020; 16:442. [PMID: 33187511 PMCID: PMC7666521 DOI: 10.1186/s12917-020-02659-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 10/30/2020] [Indexed: 02/08/2023] Open
Abstract
Background Due to the tendency to reduce antibiotic use in humans and animals, more attention is paid to feed additives as their replacement. Crucial role of feed additives is to improve the health status, production efficiency and performance. In this original research, we estimate the potential influence of garlic (Allium sativum) extract and probiotic formula including Enterococcus faecium, Lactobacillus rhamnosus and Lactobacillus fermentum on the intestinal microbiota of sows, using the next generation sequencing method (NGS). Results Our results indicate that the overall species richness as well as the composition of swine gut microbiota may be shaped by regular feeding with supplemented additives. On the Family and Genus level both additives (garlic extract and probiotics) seem to decrease microbiome diversity and richness. However, when it comes to garlic supplementation, we found the opposite trend on the Species level. Conclusions The analysis of the selected microbial function indicates that both additives used in this study (garlic extract and composition of probiotics) seem to create a greater metabolic potential than estimated in a control group of sows. A general trend of losing or decreasing members of pathogenic species in the swine microbiome seems to occur in relation to both supplemented additives. In the prevention of some bacterial diseases supplemented additives could be considered for future use.
Collapse
Affiliation(s)
- Marta Satora
- Department of Epizootiology with Clinic for Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Plac Grunwaldzki 45, Wrocław, Poland
| | - Marcin Magdziarz
- Hugo Steinhaus Center, Faculty of Pure and Applied Mathematics, Wrocław University of Science and Technology, Wyspianskiego 27, Wrocław, Poland
| | - Anna Rząsa
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, Wrocław, Poland
| | - Krzysztof Rypuła
- Department of Epizootiology with Clinic for Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Plac Grunwaldzki 45, Wrocław, Poland
| | - Katarzyna Płoneczka-Janeczko
- Department of Epizootiology with Clinic for Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Plac Grunwaldzki 45, Wrocław, Poland.
| |
Collapse
|
7
|
CP and CP-PGN protect mice against MRSA infection by inducing M1 macrophages. Sci Rep 2017; 7:16877. [PMID: 29203871 PMCID: PMC5715006 DOI: 10.1038/s41598-017-17001-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/20/2017] [Indexed: 12/11/2022] Open
Abstract
Corynebacterium pyruviciproducens (C. pyruviciproducens, CP), as a newly discovered immunomodulator, has been confirmed to have a stronger immunoregulation than Propionibacterium acnes (P. acnes) of the traditional immune adjuvant, by previous experiments with model antigen ovalbumin and sheep red blood cells. Here, it was designed to assess its ability to resist methicillin-resistant Staphylococcus aureus (MRSA), since MRSA as a vital gram positive pathogen is characterized by high morbidity and mortality. In this report, it was indicated that C. pyruviciproducens and its peptidoglycan (CP-PGN) could help to be against bloodstream infection of MRSA with raised survival rate, decreased bacteria load and alleviated systemic inflammation, and these effects of CP-PGN were more pronounced. However, the whole CP was inclined to prevent localized abdominal infection of MRSA from progressing to a systemic infection. And they showed the potential as a therapeutic drug alone or combined with vancomycin. The diversity of capacity of activating macrophages induced by CP and CP-PGN may result in distinct resistance to MRSA in different infection models. Furthermore, both CP and CP-PGN induced M1 macrophages. In conclusion, CP and its PGN could act as promising immune agents to treat and prevent MRSA infection.
Collapse
|
8
|
Oliveira A, Oliveira LC, Aburjaile F, Benevides L, Tiwari S, Jamal SB, Silva A, Figueiredo HCP, Ghosh P, Portela RW, De Carvalho Azevedo VA, Wattam AR. Insight of Genus Corynebacterium: Ascertaining the Role of Pathogenic and Non-pathogenic Species. Front Microbiol 2017; 8:1937. [PMID: 29075239 PMCID: PMC5643470 DOI: 10.3389/fmicb.2017.01937] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/21/2017] [Indexed: 11/22/2022] Open
Abstract
This review gathers recent information about genomic and transcriptomic studies in the Corynebacterium genus, exploring, for example, prediction of pathogenicity islands and stress response in different pathogenic and non-pathogenic species. In addition, is described several phylogeny studies to Corynebacterium, exploring since the identification of species until biological speciation in one species belonging to the genus Corynebacterium. Important concepts associated with virulence highlighting the role of Pld protein and Tox gene. The adhesion, characteristic of virulence factor, was described using the sortase mechanism that is associated to anchorage to the cell wall. In addition, survival inside the host cell and some diseases, were too addressed for pathogenic corynebacteria, while important biochemical pathways and biotechnological applications retain the focus of this review for non-pathogenic corynebacteria. Concluding, this review broadly explores characteristics in genus Corynebacterium showing to have strong relevance inside the medical, veterinary, and biotechnology field.
Collapse
Affiliation(s)
- Alberto Oliveira
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Leticia C Oliveira
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Flavia Aburjaile
- Center of Genomics and System Biology, Federal University of Pará, Belém, Brazil
| | - Leandro Benevides
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Sandeep Tiwari
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Syed B Jamal
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Arthur Silva
- Center of Genomics and System Biology, Federal University of Pará, Belém, Brazil
| | - Henrique C P Figueiredo
- Aquacen, National Reference Laboratory for Aquatic Animal Diseases, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Preetam Ghosh
- Department of Computational Science, Virginia Commonwealth University, Richmond, VA, United States
| | - Ricardo W Portela
- Laboratory of Immunology and Molecular Bióloga, Health Sciences Institute, Federal University of Bahiaa, Salvador, Brazil
| | - Vasco A De Carvalho Azevedo
- Molecular and Cellular Laboratory, General Biology Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Alice R Wattam
- Biocomplexity Institute of Virginia Tech, Virginia Tech, Blacksburg, VA, United States
| |
Collapse
|
9
|
Modena BD, Milam R, Harrison F, Cheeseman JA, Abecassis MM, Friedewald J, Kirk AD, Salomon DR. Changes in Urinary Microbiome Populations Correlate in Kidney Transplants With Interstitial Fibrosis and Tubular Atrophy Documented in Early Surveillance Biopsies. Am J Transplant 2017; 17:712-723. [PMID: 27597148 PMCID: PMC5328852 DOI: 10.1111/ajt.14038] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/19/2016] [Accepted: 08/22/2016] [Indexed: 01/25/2023]
Abstract
An unbalanced microbiome may lead to disease by creating aberrant immune responses. A recent association of cellular rejection with the development of interstitial fibrosis and tubular atrophy (IFTA) suggests the role of immune-mediated tissue injury. We hypothesized that developing IFTA correlates with altered urinary tract microbiomes (UMBs). UMBs at two serial time points, 1 and 6-8 months posttransplant, were assessed by 16S microbial ribosomal gene sequencing in 25 patients developing biopsy-proven IFTA compared to 23 transplant patients with normal biopsies and excellent function (TX) and 20 healthy nontransplant controls (HC). Streptococcus, the dominant genera in HC males, was lower in IFTA and TX males at 1 month compared to HCs. At 6-8 months, Streptococcus was further decreased in IFTA males, but normalized in TX. IFTA males and females had increases in number of genera per sample at 6-8 months. UMB composition varied substantially between individuals in all groups. Despite the wide variation in UMBs between individuals, IFTA was associated with a loss in dominant resident urinary microbes in males, and a parallel increase in nonresident, pathogenic bacteria in males and females. UMB changes may contribute to IFTA development by alteration of the host immune response.
Collapse
Affiliation(s)
- Brian D Modena
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA
| | - Rachel Milam
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA
| | - Frank Harrison
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA
| | | | - Michael M Abecassis
- Northwestern Comprehensive Transplant Center, Northwestern University, Chicago, IL
| | - John Friedewald
- Northwestern Comprehensive Transplant Center, Northwestern University, Chicago, IL
| | | | - Daniel R Salomon
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, Scripps Center for Organ Transplantation, Scripps Health, La Jolla, CA
| |
Collapse
|
10
|
Ebisawa M, Tsukahara T, Fudou R, Ohta Y, Tokura M, Onishi N, Fujieda T. Heat-killed cell preparation of Corynebacterium glutamicum stimulates the immune activity and improves survival of mice against enterohemorrhagic Escherichia coli. Biosci Biotechnol Biochem 2017; 81:995-1001. [PMID: 28137189 DOI: 10.1080/09168451.2017.1282804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Fermentation by Corynebacterium glutamicum is used by various industries to produce L-Glutamate, and the heat-killed cell preparation of this bacterium (HCCG) is a by-product of the fermentation process. In present study, we evaluated the immunostimulating and survival effects against enterohemorrhagic Escherichia coli (STEC) infection of HCCG. HCCG significantly stimulated in vitro IgA and interleukin-12 p70 production in murine Peyer's patch cells and peritoneal macrophages, respectively. Oral administration of 10 mg/kg body weight (BW) of HCCG for seven consecutive days stimulated IgA concentration in murine cecal digesta. Mice were orally administered HCCG for 17 consecutive days (d0-d17), and challenged with STEC on d4 to d6. Survival of mice tended to improve by 100 mg/kg BW of HCCG administration compared with those in control group. In conclusion, HCCG supplementation was found to prevent STEC infection in mice, and thus it may have the potential to stimulate the immune status of mammals.
Collapse
|