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Duanis-Assaf D, Kenan E, Sionov R, Steinberg D, Shemesh M. Proteolytic Activity of Bacillus subtilis upon κ-Casein Undermines Its "Caries-Safe" Effect. Microorganisms 2020; 8:microorganisms8020221. [PMID: 32041335 PMCID: PMC7074799 DOI: 10.3390/microorganisms8020221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/28/2020] [Accepted: 02/04/2020] [Indexed: 02/06/2023] Open
Abstract
Milk is believed to be a relatively “caries-safe” food. This belief relies on the fact that caseins, which constitute around 80% of milk’s protein content, were found to inhibit the adhesion of Streptococcus mutans to enamel and, therefore, decrease biofilm formation. While S. mutans is considered a leading cause of dental disorders, Bacillus subtilis is a non-pathogenic foodborne bacterium, frequently contaminating milk and its products. This study aimed to investigate the effects of dairy-associated foodborne bacteria such as B. subtilis on biofilm formation by S. mutans in the presence of casein proteins. Our results indicate that there is a significant decrease in total biofilm formation by S. mutans exposed to a casein protein mixture in a mono-species culture, whereas, in the co-culture with B. subtilis, an inhibitory effect of the caseins mixture on S. mutans biofilm formation was observed. Proteolytic activity analysis suggested that B. subtilis is capable of breaking down milk proteins, especially κ-casein, which enables biofilm formation by S. mutans in the presence of milk caseins. Therefore, these findings may challenge the assumption that milk is “caries-safe”, especially in a complex microbial environment.
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Affiliation(s)
- Danielle Duanis-Assaf
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), Volcani Center, Rishon LeZion 7505101, Israel;
- Biofilm Research Laboratory, Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem 9112001, Israel; (E.K.); (R.S.); (D.S.)
| | - Eli Kenan
- Biofilm Research Laboratory, Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem 9112001, Israel; (E.K.); (R.S.); (D.S.)
| | - Ronit Sionov
- Biofilm Research Laboratory, Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem 9112001, Israel; (E.K.); (R.S.); (D.S.)
| | - Doron Steinberg
- Biofilm Research Laboratory, Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University-Hadassah, Jerusalem 9112001, Israel; (E.K.); (R.S.); (D.S.)
| | - Moshe Shemesh
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization (ARO), Volcani Center, Rishon LeZion 7505101, Israel;
- Correspondence: ; Tel.: +972-3-968-3868
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Caggiano N, Lorenzo Smirnoff A, Bottini J, De Simone E. Protease activity and protein profile in milk from healthy dairy cows and cows with different types of mastitis. Int Dairy J 2019. [DOI: 10.1016/j.idairyj.2018.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Krishnamoorthy P, Satyanarayana ML, Shome BR, Rahman H. Pathological Changes in Experimental Intramammary Infection with Different Staphylococcus Species in Mice. J Microsc Ultrastruct 2018; 6:93-98. [PMID: 30221133 PMCID: PMC6130252 DOI: 10.4103/jmau.jmau_21_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Introduction Mastitis is caused by different Staphylococcus species, produce great economic loss to farmers. Present study was conducted to know pathological changes in mice inoculated with Staphylococcus epidermidis, S. chromogenes, S. haemolyticus and S. aureus isolated from bovine milk. Materials and Methods Mice were inoculated with 50 μl (2x104 cfu organisms) per mammary gland and euthanized at 6, 12, 24, 48, 72 and 96 h. Mammary gland weight, gross and histopathological changes of mammary gland, liver, kidney, spleen, heart, lung and inguinal lymph node were studied. Results Mammary gland weight and percentage of body weight increased at 6 and 96 h in S. aureus and S. haemolyticus infected mice. Gross changes were observed in mammary gland but not in other organs. Mammary gland revealed gross changes from 24 to 72 h in three Coagulase negative staphylococcal (CNS) species and persisted up to 96 h in S. aureus infected mice. Histopathological changes in mammary glands was severe in S. aureus and moderate in CNS species. S. aureus infected mice revealed severe damage to alveoli and loss of alveolar architecture at 96 h but three CNS species infection was overcome by host factors which was evident by proliferation of alveolar epithelial cells. No histological changes were observed in kidney, spleen, lung, heart and inguinal lymph nodes. Conclusions S. aureus caused severe mastitis in mice when compared to CNS species. Further, it is first report of mice to study CNS mastitis, and in future it can be used as model for CNS mastitis.
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Affiliation(s)
- P Krishnamoorthy
- Department of Veterinary Pathology, Veterinary College, Karnataka Veterinary Animal and Fisheries Sciences University, Bengaluru, Karnataka, India.,Patho-Epidemiology Laboratory, Indian Council of Agricultural Research-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - M L Satyanarayana
- Department of Veterinary Pathology, Veterinary College, Karnataka Veterinary Animal and Fisheries Sciences University, Bengaluru, Karnataka, India
| | - B R Shome
- Patho-Epidemiology Laboratory, Indian Council of Agricultural Research-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
| | - H Rahman
- Patho-Epidemiology Laboratory, Indian Council of Agricultural Research-National Institute of Veterinary Epidemiology and Disease Informatics, Bengaluru, Karnataka, India
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Krishnamoorthy P, Satyanarayana M, Shome B, Rahman H. Pathological changes in experimental intramammary infection with different Staphylococcus species in Mice. J Microsc Ultrastruct 2017. [DOI: 10.1016/j.jmau.2017.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Molecular gates in mesoporous bioactive glasses for the treatment of bone tumors and infection. Acta Biomater 2017; 50:114-126. [PMID: 27956362 DOI: 10.1016/j.actbio.2016.12.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/17/2016] [Accepted: 12/08/2016] [Indexed: 11/21/2022]
Abstract
Silica mesoporous nanomaterials have been proved to have meaningful application in biotechnology and biomedicine. Particularly, mesoporous bioactive glasses are recently gaining importance thanks to their bone regenerative properties. Moreover, the mesoporous nature of these materials makes them suitable for drug delivery applications, opening new lines in the field of bone therapies. In this work, we have developed innovative nanodevices based on the implementation of adenosine triphosphate (ATP) and ε-poly-l-lysine molecular gates using a mesoporous bioglass as an inorganic support. The systems have been previously proved to work properly with a fluorescence probe and subsequently with an antibiotic (levofloxacin) and an antitumoral drug (doxorubicin). The bioactivity of the prepared materials has also been tested, giving promising results. Finally, in vitro cell culture studies have been carried out; demonstrating that this gated devices can provide useful approaches for bone cancer and bone infection treatments. STATEMENT OF SIGNIFICANCE Molecular-gated materials have recently been drawing attention due to their applications in fields as biomedicine and molecular recognition. For the first time as we are aware, we report herein a new enzymatic responsive molecular-gated device consisting in a mesoporous bioactive glass support implemented with two different molecular gates. Both controlled drug delivery properties and apatite-like phase formation ability of the device have been demonstrated, getting promising results. This approach opens up the possibility of developing new stimuli-responsive tailored bio-materials for bone cancer and infection treatments as well as regenerative bone grafts.
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Yang Y, Cao S, Zhao X, Huang D, Zhao H, Cheng G. Determination of changes in bovine plasma and milk proteins during naturally occurring Escherichia coli mastitis by comparative proteomic analysis. ANIMAL PRODUCTION SCIENCE 2016. [DOI: 10.1071/an14901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The aim of this study was to investigate changes in plasma and milk proteins in response to Escherichia coli infection in cows. Plasma and milk were collected from healthy cows, cows suffering from mild E. coli mastitis, and cows suffering from severe E. coli mastitis. Protein composition was examined by two-dimensional gel electrophoresis coupled with mass spectrometry. Plasma haptoglobin and α-1 acid glycoprotein demonstrated greater expression in mastitic cows compared with controls, but there were no difference between mildly and severely mastitic cows. Milk from mildly mastitic cows showed increased albumin and casein variants. Severely mastitic cows showed lower casein levels and increased anti-microbial and acute phase proteins. Milk α-1 acid glycoprotein and cathelicidins were associated with severe mastitis. A greater number of β-casein fragments that corresponded to β-casein isoforms were found in milk from mildly mastitic cows. These results suggest that caseins levels decreased and the concentrations of anti-microbial and acute phase proteins increased corresponding to the degree of E. coli mastitis. Nevertheless, further studies are needed to determine whether cathelicidin could serve as a diagnostic marker for mastitis.
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Thomas FC, Mudaliar M, Tassi R, McNeilly TN, Burchmore R, Burgess K, Herzyk P, Zadoks RN, Eckersall PD. Mastitomics, the integrated omics of bovine milk in an experimental model of Streptococcus uberis mastitis: 3. Untargeted metabolomics. MOLECULAR BIOSYSTEMS 2016; 12:2762-9. [DOI: 10.1039/c6mb00289g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Metabolomic investigation of milk from cows with bovine mastitis has revealed major changes in carbohydrates, lipids, amino acids, nucleotides and bile acids.
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Affiliation(s)
- Funmilola Clara Thomas
- Institute of Biodiversity Animal Health and Comparative Medicine
- University of Glasgow
- Glasgow
- UK
| | - Manikhandan Mudaliar
- Institute of Biodiversity Animal Health and Comparative Medicine
- University of Glasgow
- Glasgow
- UK
- Glasgow Polyomics
| | | | | | - Richard Burchmore
- Glasgow Polyomics
- College of Medical
- Veterinary and Life Science
- University of Glasgow
- Glasgow
| | - Karl Burgess
- Glasgow Polyomics
- College of Medical
- Veterinary and Life Science
- University of Glasgow
- Glasgow
| | - Pawel Herzyk
- Glasgow Polyomics
- College of Medical
- Veterinary and Life Science
- University of Glasgow
- Glasgow
| | - Ruth N. Zadoks
- Institute of Biodiversity Animal Health and Comparative Medicine
- University of Glasgow
- Glasgow
- UK
- Moredun Research Institute
| | - P. David Eckersall
- Institute of Biodiversity Animal Health and Comparative Medicine
- University of Glasgow
- Glasgow
- UK
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Vidanarachchi JK, Li S, Lundh ÅS, Johansson M. Short communication: Lipolytic activity on milk fat by Staphylococcus aureus and Streptococcus agalactiae strains commonly isolated in Swedish dairy herds. J Dairy Sci 2015; 98:8560-4. [DOI: 10.3168/jds.2015-9559] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 08/06/2015] [Indexed: 11/19/2022]
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Decimo M, Morandi S, Silvetti T, Brasca M. Characterization of Gram-Negative Psychrotrophic Bacteria isolated from Italian Bulk Tank Milk. J Food Sci 2014; 79:M2081-90. [DOI: 10.1111/1750-3841.12645] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 07/24/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Marilù Decimo
- Inst. of Sciences of Food Production; Italian Natl. Research Council; Via Celoria 2 20133 Milan Italy
| | - Stefano Morandi
- Inst. of Sciences of Food Production; Italian Natl. Research Council; Via Celoria 2 20133 Milan Italy
| | - Tiziana Silvetti
- Inst. of Sciences of Food Production; Italian Natl. Research Council; Via Celoria 2 20133 Milan Italy
| | - Milena Brasca
- Inst. of Sciences of Food Production; Italian Natl. Research Council; Via Celoria 2 20133 Milan Italy
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Bikker FJ, Koop G, Leusink NB, Nazmi K, Kaman WE, Brand HS, Veerman ECI. Tailor made plasmin substrates as potential diagnostic tool to test for mastitis. Vet Res Commun 2014; 38:271-7. [DOI: 10.1007/s11259-014-9611-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2014] [Indexed: 10/25/2022]
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Pinto G, Caira S, Nicolai MA, Mauriello R, Cuollo M, Pirisi A, Piredda G, Chianese L, Addeo F. Proteolysis and partial dephosphorylation of casein are affected by high somatic cell counts in sheep milk. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.05.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Iqbal J, Rajani M, Siddiqui R, Khan NA. Neuropathogenic Escherichia coli K1 does not exhibit proteolytic activities to exert its pathogenicity. J Negat Results Biomed 2013; 12:8. [PMID: 23634997 PMCID: PMC3654900 DOI: 10.1186/1477-5751-12-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 04/11/2013] [Indexed: 12/03/2022] Open
Abstract
Background Proteases are well-known virulence factors that promote survival, pathogenesis and immune evasion of many pathogens. Several lines of evidence suggest that the blood–brain barrier permeability is a prerequisite in microbial invasion of the central nervous system. Because proteases are frequently associated with vascular permeability by targeting junctional proteins, here it is hypothesized that neuropathogenic Escherichia coli K1 exhibit proteolytic activities to exert its pathogenicity. Methods Zymographic assays were performed using collagen and gelatin as substrates. The lysates of whole E. coli K1 strain E44, or E. coli K-12 strain HB101 were tested for proteolytic activities. The conditioned media were prepared by incubating bacteria in RPMI-1640 in the presence or absence of serum. The cell-free supernatants were collected and tested for proteases in zymography as mentioned above. Additionally, proteolytic degradation of host immune factors was determined by co-incubating conditioned media with albumin/immunoglobulins using protease assays. Results When collagen or gelatin were used as substrates in zymographic assays, neither whole bacteria nor conditioned media exhibited proteolytic activities. The conditioned media of neuropathogenic E. coli K1 strain E44, or E. coli K-12 strain HB101 did not affect degradation of albumin and immunoglobulins using protease assays. Conclusions Neither zymographic assays nor protease assays detected proteolytic activities in either the whole bacteria or conditioned media of E. coli K1 strain E44 and E. coli K-12 strain HB101. These findings suggest that host cell monolayer disruptions and immune evasion strategies are likely independent of proteolytic activities of neuropathogenic E. coli K1.
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Affiliation(s)
- Junaid Iqbal
- Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
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Sánchez-Macías D, Morales-delaNuez A, Torres A, Hernández-Castellano L, Jiménez-Flores R, Castro N, Argüello A. Effects of addition of somatic cells to caprine milk on cheese quality. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2012.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Streptococcus(Str.)agalactiaeis a contagious mastitis bacterium, often associated with cases of subclinical mastitis. Different mastitis bacteria have been evaluated previously from a diagnostic point of view, but there is a lack of knowledge concerning their effect on milk composition. Protein composition is important in achieving optimal yield and texture when milk is processed to fermented products, such as cheese and yoghurt, and is thus of great economic value. The aim of thisin vitrostudy was to evaluate protein degradation mainly caused by exogenous proteases originating from naturally occurringStr. agalactiae. The samples were incubated at 37°C to imitate degradation caused by the bacteria in the udder. Protein degradation caused by different strains ofStr. agalactiaewas also investigated. Protein degradation was observed to occur whenStr. agalactiaewas added to milk, but there were variations between strains of the bacteria. Caseins, the most economically important proteins in milk, were degraded up to 75% in milk inoculated withStr. agalactiaein relation to sterile ultra-high temperature (UHT) milk, used as control milk. The major whey proteins, α-lactalbumin and β-lactoglobulin, were degraded up to 21% in relation to the sterile control milk. These results suggest that different mastitis bacteria but also different strains of mastitis bacteria should be evaluated from a milk quality perspective to gain knowledge about their ability to degrade the economically important proteins in milk.
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Fleminger G, Heftsi R, Uzi M, Nissim S, Gabriel L. Chemical and structural characterization of bacterially-derived casein peptides that impair milk clotting. Int Dairy J 2011. [DOI: 10.1016/j.idairyj.2011.05.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Teh KH, Flint S, Palmer J, Lindsay D, Andrewes P, Bremer P. Thermo-resistant enzyme-producing bacteria isolated from the internal surfaces of raw milk tankers. Int Dairy J 2011. [DOI: 10.1016/j.idairyj.2011.04.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Le Maréchal C, Thiéry R, Vautor E, Le Loir Y. Mastitis impact on technological properties of milk and quality of milk products—a review. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s13594-011-0009-6] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Danielsen M, Codrea MC, Ingvartsen KL, Friggens NC, Bendixen E, Røntved CM. Quantitative milk proteomics - Host responses to lipopolysaccharide-mediated inflammation of bovine mammary gland. Proteomics 2010; 10:2240-9. [DOI: 10.1002/pmic.200900771] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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HACHANA Y, KRAIEM K, PAAPE MJ. Effect of Plasmin, Milk Somatic Cells and Psychrotrophic Bacteria on Casein Fractions of Ultra High Temperature Treated Milk. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2010. [DOI: 10.3136/fstr.16.79] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chen W, Weng M, Chen S, Peh H, Liu W, Yu T, Huang M, Chen M, Nagahata H, Chang C. Profile of Gelatinolytic Capacity of Raw Goat Milk and the Implications for Milk Quality. J Dairy Sci 2007; 90:4954-65. [DOI: 10.3168/jds.2007-0366] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Mastitis, an inflammatory reaction of the mammary gland that is usually caused by a microbial infection, is recognized as the most costly disease in dairy cattle. Decreased milk production accounts for approximately 70% of the total cost of mastitis. Mammary tissue damage reduces the number and activity of epithelial cells and consequently contributes to decreased milk production. Mammary tissue damage has been shown to be induced by either apoptosis or necrosis. These 2 distinct types of cell death can be distinguished by morphological, biochemical, and molecular changes in dying cells. Both bacterial factors and host immune reactions contribute to epithelial tissue damage. During infection of the mammary glands, the tissue damage can initially be caused by bacteria and their products. Certain bacteria produce toxins that destroy cell membranes and damage milk-producing tissue, whereas other bacteria are able to invade and multiply within the bovine mammary epithelial cells before causing cell death. In addition, mastitis is characterized by an influx of somatic cells, primarily polymorphonuclear neutrophils, into the mammary gland. With more immune cells migrating into the mammary gland and the breakdown of the blood-milk barrier, damage to the mammary epithelium worsens. It is well known that breakdown of the extracellular matrix can lead to death of the epithelial cells. Meanwhile, polymorphonuclear neutrophils can harm the mammary tissue by releasing reactive oxygen intermediates and proteolytic enzymes. In vitro and in vivo studies suggest that the use of antioxidants and other protective compounds in mastitis control programs is worth investigating, because they may aid in alleviating damage to secretory cells and thus reduce subsequent milk loss.
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Affiliation(s)
- X Zhao
- Department of Animal Science, McGill University, Ste. Anne de Bellevue, Québec, H9X 3V9, Canada.
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Haddadi K, Prin-Mathieu C, Moussaoui F, Faure G, Vangroenweghe F, Burvenich C, Le Roux Y. Polymorphonuclear neutrophils and Escherichia coli proteases involved in proteolysis of casein during experimental E. coli mastitis. Int Dairy J 2006. [DOI: 10.1016/j.idairyj.2005.09.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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