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Arsaute S, Reinoso EB, Cecchini ME, Moliva MV, Montironi ID, Cariddi LN. Minthostachys verticillata essential oil modulates cytokine synthesis and Staphylococcus aureus internalization in MAC-T cells at least through TLR4/MyD88/NFkB pathway. Vet Res Commun 2024:10.1007/s11259-024-10526-6. [PMID: 39249174 DOI: 10.1007/s11259-024-10526-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Accepted: 08/30/2024] [Indexed: 09/10/2024]
Abstract
The aim of this study was to evaluate the activation pathway(s) triggered by Minthostachys verticillata essential oil (EO) in bovine mammary epithelial cells (MAC-T) challenged with a strain of bovine Staphylococcus aureus. MAC-T cells were stimulated with EO, S. aureus or pre-treated with EO and then challenged with S. aureus. Cytokine's release was measured by ELISA. The mRNA for TLR2, TLR4, NOD2, MyD88 and NFκB was quantified by RT-qPCR. S. aureus adherence and internalization was also evaluated. MAC-T cells stimulated with S. aureus synthesized high levels of IL-1ß and IL-6 were kept up to 48 h, while IL-4 levels were not altered. Cells pre-treated with EO for 2 and 6 h and then challenged with S. aureus showed a significant increase of IL-1β and IL-6. However, in these cells, a decrease in IL-1ß and IL-6 levels and an increase of IL-4 values was observed from 24 h. No significant increase in the expression levels of TLR2 or NOD2 was detected in all stimulated cells. However, the expression of TLR4, MyD88 and NFκB was increased in cells stimulated with S. aureus at 2 and 6 h as well as in cells pre-treated with EO between 2 and 6 h and then challenged with S. aureus. The NFκB expression levels was similar to control at 24 h in all stimulated cells, although pro-inflammatory cytokine levels and TLR4 and MyD88 expression levels remained high in cells stimulated with S. aureus. This results suggested the activation of other pathways independent of MyD88 by the pathogen that involucrated the activation of others transcription factors. Pre-treatment with EO during 2, 6 and 24 h did not affect S. aureus adherence but decreased its internalization. In conclusion, pre-treatment with EO increased the IL-1β and IL-6 synthesis during the first hours post-challenged with S. aureus up-regulating TLR4/MyD88/NFκB pathway. Furthermore, EO increased the IL-4 levels from 6 to 24 h down-regulating the NFκB and possibly other transcription factors activated by the pathogen, which decreased its internalization into MAC-T cells.
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Affiliation(s)
- Sofía Arsaute
- Facultad de Ciencias Exactas Físico-Químicas y Naturales, Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Ruta 36 Km 601, Río Cuarto, Córdoba, 5800, Argentina
| | - Elina Beatriz Reinoso
- Facultad de Ciencias Exactas Físico-Químicas y Naturales, Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Ruta 36 Km 601, Río Cuarto, Córdoba, 5800, Argentina
| | - María Eugenia Cecchini
- Facultad de Ciencias Exactas Físico-Químicas y Naturales, Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Ruta 36 Km 601, Río Cuarto, Córdoba, 5800, Argentina
| | - Melina Vanesa Moliva
- Facultad de Ciencias Exactas Físico-Químicas y Naturales, Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Ruta 36 Km 601, Río Cuarto, Córdoba, 5800, Argentina
| | - Ivana Dalila Montironi
- Facultad de Ciencias Exactas Físico-Químicas y Naturales, Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Ruta 36 Km 601, Río Cuarto, Córdoba, 5800, Argentina
| | - Laura Noelia Cariddi
- Facultad de Ciencias Exactas Físico-Químicas y Naturales, Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, 5800, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Ruta 36 Km 601, Río Cuarto, Córdoba, 5800, Argentina.
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Silvestrini P, Beccaria C, Renna MS, Engler C, Simonutti V, Cellone I, Calvinho LF, Dallard BE, Baravalle C. In vitro evaluation of ginsenoside Rg1 immunostimulating effect in bovine mononuclear cells. Res Vet Sci 2023; 158:1-12. [PMID: 36898322 DOI: 10.1016/j.rvsc.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023]
Abstract
The aim of this study was to evaluate the immunomodulatory effect of ginsenoside Rg1 on mammary secretion and peripheral blood mononuclear cells (MSMC and PBMC, respectively). The mRNA expression of TLR2, TLR4 and selected cytokines were evaluated on MSMC after Rg1 treatment. Also, TLR2 and TLR4 protein expression was evaluated on MSMC and PBMC after Rg1 treatment. Phagocytic activity and capacity, ROS production and MHC-II expression were evaluated on MSMC and PBMC after Rg1 treatment and co-culture with Staphylococcus aureus strain 5011. Rg1 induced mRNA expression of TLR2, TLR4, TNF-α, IL-1β, IL-6 and IL-8 in groups treated with different concentrations and at different times in MSMC, and induced TLR2 and TLR4 protein expression in MSMC and PBMC. Rg1 increased phagocytic capacity and ROS production in MSMC and PBMC. Rg1 increased MHC-II expression by PBMC. However, Rg1 pre-treatment had no effect on cells co-cultured with S. aureus. In conclusion, Rg1 was able to stimulate several sensing and effector activities in these immune cells.
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Affiliation(s)
- Paula Silvestrini
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Camila Beccaria
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - María S Renna
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Carolina Engler
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Valeria Simonutti
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Ivana Cellone
- Cátedra de Enfermedades Infecciosas, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina
| | - Luis F Calvinho
- Cátedra de Enfermedades Infecciosas, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Investigación de la Cadena Láctea (INTA-CONCET), Estación Experimental Agropecuaria Rafaela, Instituto Nacional de Tecnología Agropecuaria, Rafaela, Santa Fe, Argentina
| | - Bibiana E Dallard
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Celina Baravalle
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina.
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Torres G, Sánchez-Jiménez M, Reyes-Vélez J, Bach H, Olivera-Angel M. Evaluation of three Staphylococcus aureus proteins involved in the adhesion process as antigens for the detection of bovine intramammary infections. J Med Microbiol 2022; 71. [PMID: 36748695 DOI: 10.1099/jmm.0.001613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Introduction. Fast and accurate diagnosis is one of the key strategies in the successful control of intramammary infections caused by Staphylococcus aureus. Immunoassays are one of the diagnostic tools that have been proposed for the detection of S. aureus infection because they offer an advantage in terms of cost and are fast and easy to use compared to other diagnostic tests.Gap statement. The main challenge of the immunoassays is to identify antigens or serological markers that allow accurate discrimination between infected and uninfected cows with S. aureus, since this bacterium can naturally colonize different areas of the animal body.Aim. To evaluate three S. aureus proteins (IsdA, ClfA, SdrD) involved in the adhesion process as antigens to detect indicator antibodies of bovine intramammary infections.Methodology. Ninety-six cows in lactation and not vaccinated against S. aureus were included. Forty-eight of these cows were infected with S. aureus, while the rest (n=48 cows) were uninfected. Blood and milk samples were collected from each animal to recover serum and whey. IgG titres against the three proteins individually and combined (Mix) were measured in each sample using an enzyme-linked immunosorbent assay (ELISA) test.Results. Significant differences in the IgG response against the proteins evaluated were observed, highlighting the antigenic potential of IsdA and demonstrating that some antigens can detect specific antibodies of infection better than others. According to receiver operating characteristic (ROC) curve analysis, the combined proteins showed the most remarkable capacity (sensitivity of 79 % and specificity of 77 %) to differentiate between infected and uninfected cows when blood samples were used. In addition, the combined proteins also showed the highest specificity (94 %) when using milk samples.Conclusion. Our findings provide information on the usefulness of three adhesion-associated S. aureus proteins in detecting serological markers of intramammary infections in bovines.
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Affiliation(s)
- Giovanny Torres
- Instituto Colombiano de Medicina Tropical, Universidad CES, Cra. 43A No. 52 sur-99 Sabaneta, Antioquia, Colombia.,Biogenesis Research Group, Faculty of Agricultural sciences, University of Antioquia, Cra. 75 No. 65-87, Medellín, Antioquia, Colombia
| | - Miryan Sánchez-Jiménez
- Instituto Colombiano de Medicina Tropical, Universidad CES, Cra. 43A No. 52 sur-99 Sabaneta, Antioquia, Colombia
| | - Julián Reyes-Vélez
- Instituto Colombiano de Medicina Tropical, Universidad CES, Cra. 43A No. 52 sur-99 Sabaneta, Antioquia, Colombia.,Biogenesis Research Group, Faculty of Agricultural sciences, University of Antioquia, Cra. 75 No. 65-87, Medellín, Antioquia, Colombia
| | - Horacio Bach
- Division of Infectious Diseases, Department of Medicine, University of British Columbia, 410-2660 Oak Street, Vancouver, BC, Canada
| | - Martha Olivera-Angel
- Biogenesis Research Group, Faculty of Agricultural sciences, University of Antioquia, Cra. 75 No. 65-87, Medellín, Antioquia, Colombia
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Engler C, Renna MS, Beccaria C, Silvestrini P, Pirola SI, Pereyra EAL, Baravalle C, Camussone CM, Monecke S, Calvinho LF, Dallard BE. Differential immune response to two Staphylococcus aureus strains with distinct adaptation genotypes after experimental intramammary infection of dairy cows. Microb Pathog 2022; 172:105789. [PMID: 36176246 DOI: 10.1016/j.micpath.2022.105789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 10/31/2022]
Abstract
The aim of this study was to evaluate and compare the ability of two S. aureus strains with different adaptation genotypes (low and high) to the bovine mammary gland (MG) to establish an intramammary infection (IMI) and induce an immune response after an experimental challenge in lactating cows. Two isolates (designated 806 and 5011) from bovine IMI with different genotypic profiles, harboring genes involved in adherence and biofilm production, belonging to different capsular polysaccharide (CP) type, accessory gene regulator (agr) group, pulsotype (PT) and sequence type/clonal complex (ST/CC) were selected. Strains 806 and 5011 were associated with low (nonpersistent-NP) and high (persistent-P) adaptation to the MG, respectively. Strain 806 (NP) was characterized as agr group II, cap5 positive and ST350; strain 5011 (P) agr group I, cap8 positive and CC188. Three groups of clinically healthy cows, 4 cows/treatment group, were inoculated by the intramammary route with strain 806 (NP), strain 5011 (P) and pyrogen-free saline solution. All mammary quarters challenged with strain 806 (NP) developed mild clinical mastitis between 1 and 7 d post inoculation (pi). Quarters challenged with strain 5011 (P) developed a persistent IMI; bacteria were recovered from milk from d 7 pi and up to d 56 pi. In quarters inoculated with strain 806 (NP) the inflammatory response induced was greater and earlier than the one induced by strain 5011 (P), since a somatic cell count (SCC) peak was observed at d 2 pi, while in quarters inoculated with strain 5011 (P) no variations in SCC were observed until d 4 pi reaching the maximum values at d 14 pi; indicating a lower and delayed initial inflammatory response. The highest levels of nitric oxide (NO) and lactoferrin (Lf) detected in milk from quarters inoculated with both S. aureus strains coincided with the highest SCC at the same time periods, indicating an association with the magnitude of inflammation. The high levels of IL-1β induced by strain 806 (NP) were associated with the highest SCC detected (d 2 pi); while quarters inoculated with strain 5011 (P) showed similar IL-1β levels to those found in control quarters. In quarters inoculated with strain 806 (NP) two peaks of IL-6 levels on d 2 and 14 pi were observed; while in quarters inoculated with strain 5011 (P) IL-6 levels were similar to those found in control quarters. The strain 806 (NP) induced a higher total IgG and IgG1 response; while strain 5011 (P) generated a higher IgG2 response (even against the heterologous strain). The present study demonstrated that S. aureus strains with different genotype and adaptability to bovine MG influence the local host immune response and the course and severity of the infectious process.
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Affiliation(s)
- Carolina Engler
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - María S Renna
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Camila Beccaria
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Paula Silvestrini
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Silvana I Pirola
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Elizabet A L Pereyra
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Celina Baravalle
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina
| | - Cecilia M Camussone
- Instituto de Investigación de la Cadena Láctea (INTA-CONICET), Estación Experimental Agropecuaria Rafaela, Ruta 34 Km 227, Rafaela, Santa Fe, Argentina
| | - Stefan Monecke
- Institute for Medical Microbiology and Hygiene, TU Dresden, Dresden, Germany; Alere Technologies GmbH, Jena, Germany
| | - Luis F Calvinho
- Cátedra de Enfermedades Infecciosas. Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Investigación de la Cadena Láctea (INTA-CONICET), Estación Experimental Agropecuaria Rafaela, Ruta 34 Km 227, Rafaela, Santa Fe, Argentina
| | - Bibiana E Dallard
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (UNL-CONICET), Argentina.
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Beuckelaere L, De Visscher A, Souza FN, Meyer E, Haesebrouck F, Piepers S, De Vliegher S. Colonization and local host response following intramammary Staphylococcus chromogenes challenge in dry cows. Vet Res 2021; 52:137. [PMID: 34711282 PMCID: PMC8554945 DOI: 10.1186/s13567-021-01007-8] [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] [Received: 06/16/2021] [Accepted: 10/09/2021] [Indexed: 12/12/2022] Open
Abstract
Although extensive research has been performed on bovine non-aureus staphylococci (NAS), several aspects such as bacteria-host interaction remain largely unstudied. Moreover, only a few mastitis pathogen challenge studies in cows have been conducted in the dry period, an important period that allows intramammary infection (IMI) to cure and new IMI to occur. We challenged 16 quarters of 4 Holstein Friesian cows at dry off with 100; 100 000 or 10 000 000 CFU of the udder-adapted S. chromogenes IM strain. Four quarters from one cow served as negative controls. Internally sealed quarters remained untouched, whereas non-sealed quarters were sampled 3 times during the dry period. After parturition, colostrum and daily milk samples were taken during the first week of lactation of all quarters. In total, 8 quarters appeared to be colonized, since S. chromogenes IM was recovered at least once during the experiment, as substantiated using Multilocus Sequence Typing. S. chromogenes IM shedding was highest in dry quarters inoculated with 10 000 000 CFU. Colonized quarters had the highest quarter somatic cell count (qSCC) in early lactation. Inoculated quarters (both colonized and non-colonized) had lower IL-6 and IL-10 concentrations in the dry period, whilst IFN-γ levels tended to be higher in colonized quarters compared to non-inoculated quarters. Also, IgG2 levels were higher in inoculated compared to non-inoculated quarters and the IgG2/IgG1 ratio was on average above 1. To conclude, we showed that dry quarters can be colonized with S. chromogenes IM, resulting in a shift towards a Th1 response in late gestation and early lactation characterised by an increased IgG2 concentration. However, further research is needed to confirm our findings.
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Affiliation(s)
- Lisa Beuckelaere
- M-team and Mastitis and Milk Quality Research Unit, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Anneleen De Visscher
- M-team and Mastitis and Milk Quality Research Unit, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.,Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science, Burgemeester Van Gansberghelaan 115 bus 1, 9820, Merelbeke, Belgium
| | - Fernando Nogueira Souza
- Veterinary Clinical Immunology Research Group, Departamento de Clínica Médica, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, São Paulo, 05508-270, Brazil.,Programa de Pós-Graduação Em Ciência Animal, Centro de Ciências Agrárias, Universidade Federal da Paraíba, Areia, 58397-000, Brazil
| | - Evelyne Meyer
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Freddy Haesebrouck
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Sofie Piepers
- M-team and Mastitis and Milk Quality Research Unit, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Sarne De Vliegher
- M-team and Mastitis and Milk Quality Research Unit, Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
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Involvement of matrix metalloproteinases and their inhibitors in Staphylococcus aureus chronically infected bovine mammary glands during active involution. Res Vet Sci 2021; 137:30-39. [PMID: 33932820 DOI: 10.1016/j.rvsc.2021.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/23/2022]
Abstract
The aim of this study was to characterize the protein expression of matrix metalloproteinase-2 (MMP-2) and -- 9 and their inhibitors (TIMP-1 and -2) in mammary tissue of dairy cows with naturally occurring chronic S. aureus intramammary infections (IMI) during active involution. Moreover, the gelatinolytic activity of MMP-2 and -9 in mammary secretions was evaluated. Cows in late lactation that were either uninfected or with chronic naturally acquired S. aureus IMI were included in this study. Protein expression of MMP-2 and -9 in mammary tissues was significantly higher in S. aureus-infected than uninfected quarters at day 14 and 21 of involution. Protein expression of TIMP-1 and -2 was significantly higher in S. aureus-infected than uninfected quarters at day 7, 14 and 21 of involution. The MMP-2/TIMP-1, MMP-2/TIMP-2, MMP-9/TIMP-1 and MMP-9/TIMP-2 ratios were significantly higher in S. aureus-infected compared with uninfected quarters at day 14 of involution. The MMP-2 activity was significantly higher in mammary secretions from S. aureus-infected compared with uninfected quarters at day 1, 2, 7 and 14 of involution. The MMP-9 activity was significantly higher in mammary secretions from infected quarters compared with uninfected quarters at day 7, 14 and 21 of involution. The increased expression of MMP-2 and -9 in mammary tissue as well as the high levels of activity observed in mammary secretion from infected quarters compared with uninfected quarters during active involution, strongly suggests that these gelatinases could contribute to degradation of mammary tissue components during chronic S. aureus IMI. The MMPs/TIMPs imbalance could lead to greater proteolysis and potentially more damage to mammary tissue in S. aureus-infected quarters.
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Zaatout N, Ayachi A, Kecha M. Staphylococcus aureus persistence properties associated with bovine mastitis and alternative therapeutic modalities. J Appl Microbiol 2020; 129:1102-1119. [PMID: 32416020 DOI: 10.1111/jam.14706] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/15/2020] [Accepted: 05/09/2020] [Indexed: 12/12/2022]
Abstract
Staphylococcus aureus is an important agent of contagious bovine intramammary infections in dairy cattle. Its ability to persist inside the udder is based on the presence of important mechanisms such as its ability to form biofilms, polysaccharide capsules small colony variants, and their ability to invade professional and nonprofessional cells, which will protect S. aureus from the innate and adaptive immune response of the cow, and from antibiotics that are no longer considered to be sufficient against S. aureus bovine mastitis. In this review, we present the recent research outlining S. aureus persistence properties inside the mammary gland, including its regulation mechanisms, and we highlight alternative therapeutic strategies that were tested against S. aureus isolated from bovine mastitis such as the use of probiotic bacteria, bacteriocins and bacteriophages. Overall, the persistence of S. aureus inside the mammary gland remains a pressing veterinary problem. A thorough understanding of staphylococcal persistence mechanisms will elucidate novel ways that can help in the identification of novel treatments.
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Affiliation(s)
- N Zaatout
- Laboratory of Applied Microbiology, Faculty of Nature and Life Sciences, University of Bejaia, Bejaia, Algeria
| | - A Ayachi
- Institute of Veterinary and Agricultural Sciences, University of Batna, Batna, Algeria
| | - M Kecha
- Laboratory of Applied Microbiology, Faculty of Nature and Life Sciences, University of Bejaia, Bejaia, Algeria
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