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Nicholson TL, Waack U, Fleming DS, Chen Q, Miller LC, Merkel TJ, Stibitz S. The contribution of BvgR, RisA, and RisS to global gene regulation, intracellular cyclic-di-GMP levels, motility, and biofilm formation in Bordetella bronchiseptica. Front Microbiol 2024; 15:1305097. [PMID: 38516008 PMCID: PMC10955343 DOI: 10.3389/fmicb.2024.1305097] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/20/2024] [Indexed: 03/23/2024] Open
Abstract
Bordetella bronchiseptica is a highly contagious respiratory bacterial veterinary pathogen. In this study the contribution of the transcriptional regulators BvgR, RisA, RisS, and the phosphorylation of RisA to global gene regulation, intracellular cyclic-di-GMP levels, motility, and biofilm formation were evaluated. Next Generation Sequencing (RNASeq) was used to differentiate the global gene regulation of both virulence-activated and virulence-repressed genes by each of these factors. The BvgAS system, along with BvgR, RisA, and the phosphorylation of RisA served in cyclic-di-GMP degradation. BvgR and unphosphorylated RisA were found to temporally regulate motility. Additionally, BvgR, RisA, and RisS were found to be required for biofilm formation.
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Affiliation(s)
- Tracy L. Nicholson
- Agricultural Research Service, USDA, National Animal Disease Center, Ames, IA, United States
| | - Ursula Waack
- Agricultural Research Service, USDA, National Animal Disease Center, Ames, IA, United States
- United States Department of Energy, Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Damarius S. Fleming
- USDA, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD, United States
| | - Qing Chen
- Division of Bacterial, Parasitic, and Allergenic Products, Center for Biologics Evaluation and Research, FDA, Silver Spring, MD, United States
| | - Laura C. Miller
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Tod J. Merkel
- Division of Bacterial, Parasitic, and Allergenic Products, Center for Biologics Evaluation and Research, FDA, Silver Spring, MD, United States
| | - Scott Stibitz
- Division of Bacterial, Parasitic, and Allergenic Products, Center for Biologics Evaluation and Research, FDA, Silver Spring, MD, United States
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Hau SJ, Nielsen DW, Brockmeier SL. Prior infection with Bordetella bronchiseptica enhanced colonization but not disease with Streptococcus suis. Vet Microbiol 2023; 284:109841. [PMID: 37542929 DOI: 10.1016/j.vetmic.2023.109841] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/07/2023]
Abstract
Bordetella bronchiseptica and Streptococcus suis are widely distributed swine pathogens. B. bronchiseptica is a primary pathogen and causes atrophic rhinitis and bronchopneumonia. S. suis is a contributing agent to porcine respiratory disease complex and causes systemic diseases including arthritis, meningitis, polyserositis, and septicemia. Colonization with B. bronchiseptica has been associated with increased colonization by other pathogenic bacteria and increased disease severity with viral and bacterial pathogens. It has also been reported to predispose cesarean derived, colostrum deprived (CDCD) piglets to S. suis systemic disease. Here, we evaluated the role of B. bronchiseptica colonization on S. suis colonization, dissemination, and disease in one study using conventional pigs and another using CDCD pigs. Pigs were challenged with S. suis, B. bronchiseptica, or B. bronchiseptica followed by S. suis. Incidence of S. suis disease was not increased in either study for animals pre-inoculated with B. bronchiseptica. Nasal colonization with S. suis was increased in coinfected animals, while B. bronchiseptica was similar between mono- and co-infected animals. Although increased S. suis disease was not seen in coinfected pigs, there is evidence that B. bronchiseptica can increase colonization with S. suis, which may contribute to enhanced disease when animals are stressed or immunocompromised.
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Affiliation(s)
- Samantha J Hau
- National Animal Disease Center, Agricultural Research Service, USDA, Ames, IA, United States.
| | - Daniel W Nielsen
- National Animal Disease Center, Agricultural Research Service, USDA, Ames, IA, United States; Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Susan L Brockmeier
- National Animal Disease Center, Agricultural Research Service, USDA, Ames, IA, United States.
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Alemán-Duarte MI, Aguilar-Uscanga BR, García-Robles G, Ramírez-Salazar FDJ, Benítez-García I, Balcázar-López E, Solís-Pacheco JR. Improvement and Validation of a Genomic DNA Extraction Method for Human Breastmilk. Methods Protoc 2023; 6:mps6020034. [PMID: 37104016 PMCID: PMC10144544 DOI: 10.3390/mps6020034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/29/2023] Open
Abstract
The human milk microbiota (HMM) of healthy women can vary substantially, as demonstrated by recent advances in DNA sequencing technology. However, the method used to extract genomic DNA (gDNA) from these samples may impact the observed variations and potentially bias the microbiological reconstruction. Therefore, it is important to use a DNA extraction method that is able to effectively isolate gDNA from a diverse range of microorganisms. In this study, we improved and compared a DNA extraction method for gDNA isolation from human milk (HM) samples to commercial and standard protocols. We evaluated the extracted gDNA using spectrophotometric measurements, gel electrophoresis, and PCR amplifications to assess its quantity, quality, and amplifiability. Additionally, we tested the improved method’s ability to isolate amplifiable gDNA from fungi, Gram-positive and Gram-negative bacteria to validate its potential for reconstructing microbiological profiles. The improved DNA extraction method resulted in a higher quality and quantity of the extracted gDNA compared to the commercial and standard protocols and allowed for polymerase chain reaction (PCR) amplification of the V3–V4 regions of the 16S ribosomal gene in all the samples and the ITS-1 region of the fungal 18S ribosomal gene in 95% of the samples. These results suggest that the improved DNA extraction method demonstrates better performance for gDNA extraction from complex samples such as HM.
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Affiliation(s)
- Mario Iván Alemán-Duarte
- Laboratorio de Microbiología Industrial, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd, Gral, Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Mexico
| | - Blanca Rosa Aguilar-Uscanga
- Laboratorio de Microbiología Industrial, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd, Gral, Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Mexico
| | - Guadalupe García-Robles
- Laboratorio de Microbiología Industrial, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd, Gral, Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Mexico
| | - Felipe de Jesús Ramírez-Salazar
- Laboratorio de Microbiología Industrial, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd, Gral, Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Mexico
| | - Israel Benítez-García
- Unidad Académica de Ingeniería en Biotecnología, Universidad Politécnica de Sinaloa (UPSIN), Carretera Municipal Libre Mazatlán Higueras Km 3 Col. Genaro Estrada, Mazatlán 82199, Mexico
| | - Edgar Balcázar-López
- Laboratorio de Microbiología Industrial, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd, Gral, Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Mexico
- Correspondence: (E.B.-L.); (J.R.S.-P.); Tel.: +52-(33)-1378-59000 (ext. 27648) (J.R.S.-P.)
| | - Josué Raymundo Solís-Pacheco
- Laboratorio de Microbiología Industrial, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd, Gral, Marcelino García Barragán 1421, Olímpica, Guadalajara 44430, Mexico
- Correspondence: (E.B.-L.); (J.R.S.-P.); Tel.: +52-(33)-1378-59000 (ext. 27648) (J.R.S.-P.)
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Xiao C, Huang Y, Wei Q, Liu Y, Ji Q, Li K, Bao G. Comparative Proteomic Analysis Reveals Complex Responses to Bordetella bronchiseptica Infections in the Spleen of Rabbits. Proteomics 2020; 20:e2000117. [PMID: 32820866 DOI: 10.1002/pmic.202000117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 05/06/2020] [Revised: 07/30/2020] [Indexed: 11/07/2022]
Abstract
Bordetella bronchiseptica (B. bronchiseptica) causes a respiratory disease in rabbits. To determine the proteins of B. bronchiseptica in rabbits related to the disease, differentially accumulated proteins in B. bronchiseptica-infected cells are identified by comparative proteomic analysis. Comparative proteomic analysis detects 5814 proteins and quantifies 4854 of these. Fifty eight upregulated and 38 downregulated proteins are identified in spleen tissue after B. bronchiseptica infection of rabbits (both p < 0.05). The significantly enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways are ribosome, biosynthesis of amino acids, biosynthesis of amino acids, protein export, and carbon metabolism etc. (all p < 0.01). Significantly enriched KEGG pathways include 'ocu03010 ribosome' (a); 'ocu00260 glycine, serine threonine metabolism'. Analyses of control and infected spleen cells detect responses to B. bronchiseptica infection. Many differentially affected proteins are evident, and reflect different biological changes and diverse subcellular localizations between control and infected spleen cells. Infection markedly alters the expressions of proteins linked to the serine protease system, with the 'phagosome,' 'biosynthesis of amino acids,' 'glycine, serine threonine metabolism,' 'intestinal immune network for IgA production', and 'amino sugar and nucleotide sugar metabolism' associated with B. bronchiseptica infection. The result will inform studies of responses to B. bronchiseptica infections in rabbits.
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Affiliation(s)
- Chenwen Xiao
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
| | - Yee Huang
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
| | - Qiang Wei
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
| | - Yan Liu
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
| | - Quanan Ji
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
| | - Ke Li
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
| | - Guolian Bao
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Shiqiao Road 145#, Hangzhou, 310021, China
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