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Müller-Langhans K, Oberberger L, Zablotski Y, Engelmann S, Hoedemaker M, Kühn C, Schuberth HJ, Zerbe H, Petzl W, Meyerholz-Wohllebe MM. Cows with diverging haplotypes show differences in differential milk cell count, milk parameters and vaginal temperature after S. aureus challenge but not after E. coli challenge. BMC Vet Res 2024; 20:200. [PMID: 38745199 PMCID: PMC11094921 DOI: 10.1186/s12917-024-03996-y] [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: 01/05/2024] [Accepted: 03/27/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND In dairy cattle, mastitis causes high financial losses and impairs animal well-being. Genetic selection is used to breed cows with reduced mastitis susceptibility. Techniques such as milk cell flow cytometry may improve early mastitis diagnosis. In a highly standardized in vivo infection model, 36 half-sib cows were selected for divergent paternal Bos taurus chromosome 18 haplotypes (Q vs. q) and challenged with Escherichia coli for 24 h or Staphylococcus aureus for 96 h, after which the samples were analyzed at 12 h intervals. Vaginal temperature (VT) was recorded every three minutes. The objective of this study was to compare the differential milk cell count (DMCC), milk parameters (fat %, protein %, lactose %, pH) and VT between favorable (Q) and unfavorable (q) haplotype cows using Bayesian models to evaluate their potential as improved early indicators of differential susceptibility to mastitis. RESULTS After S. aureus challenge, compared to the Q half-sibship cows, the milk of the q cows exhibited higher PMN levels according to the DMCC (24 h, p < 0.001), a higher SCC (24 h, p < 0.01 and 36 h, p < 0.05), large cells (24 h, p < 0.05) and more dead (36 h, p < 0.001) and live cells (24 h, p < 0.01). The protein % was greater in Q milk than in q milk at 0 h (p = 0.025). In the S. aureus group, Q cows had a greater protein % (60 h, p = 0.048) and fat % (84 h, p = 0.022) than q cows. Initially, the greater VT of S. aureus-challenged q cows (0 and 12-24 h, p < 0.05) reversed to a lower VT in q cows than in Q cows (48-60 h, p < 0.05). Additionally, the following findings emphasized the validity of the model: in the S. aureus group all DMCC subpopulations (24 h-96 h, p < 0.001) and in the E. coli group nearly all DMCC subpopulations (12 h-24 h, p < 0.001) were higher in challenged quarters than in unchallenged quarters. The lactose % was lower in the milk samples of E. coli-challenged quarters than in those of S. aureus-challenged quarters (24 h, p < 0.001). Between 12 and 18 h, the VT was greater in cows challenged with E. coli than in those challenged with S. aureus (3-h interval approach, p < 0.001). CONCLUSION This in vivo infection model confirmed specific differences between Q and q cows with respect to the DMCC, milk component analysis results and VT results after S. aureus inoculation but not after E. coli challenge. However, compared with conventional milk cell analysis monitoring, e.g., the global SCC, the DMCC analysis did not provide refined phenotyping of the pathogen response.
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Affiliation(s)
- Katharina Müller-Langhans
- Clinic for Ruminants With Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, Oberschleissheim, 85764, Germany
| | - Lisa Oberberger
- Institute for Infectious Diseases and Zoonoses, Ludwig-Maximilians-University Munich, Sonnenstrasse 24, Oberschleissheim, 85764, Germany
| | - Yury Zablotski
- Clinic for Ruminants With Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, Oberschleissheim, 85764, Germany
| | - Susanne Engelmann
- Technical University Braunschweig, Institute for Microbiology, Inhoffenstrasse 7, Brunswick, 38124, Germany
- Helmholtz Center for Infection Research, Microbial Proteomics, Inhoffenstrasse 7, Brunswick, 38124, Germany
| | - Martina Hoedemaker
- Clinic for Cattle, University of Veterinary Medicine Hanover Foundation, Bischofsholer Damm 15, Hanover, 30173, Germany
| | - Christa Kühn
- Research Institute for Farm Animal Biology, Genome Biology, Wilhelm-Stahl-Allee 2, Dummerstorf, 18196, Germany
- Agricultural and Environmental Faculty, University Rostock, Justus-Von-Liebig-Weg 6, Rostock, 18059, Germany
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, Greifswald-Insel Riems, 17493, Germany
| | - Hans-Joachim Schuberth
- Institute for Immunology, University of Veterinary Medicine Hanover Foundation, Bünteweg 2, Hanover, 30559, Germany
| | - Holm Zerbe
- Clinic for Ruminants With Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, Oberschleissheim, 85764, Germany
| | - Wolfram Petzl
- Clinic for Ruminants With Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, Oberschleissheim, 85764, Germany
| | - Marie Margarete Meyerholz-Wohllebe
- Clinic for Ruminants With Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, Oberschleissheim, 85764, Germany.
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Priyo TW, Edo A, Taura Y, Yamato O, Ono T, Taniguchi M, Widodo OS, Islam MS, Maki S, Takagi M. Novel Approach for Evaluating Pregnancy-Associated Glycoprotein and Inflammation Markers during the Postpartum Period in Holstein Friesian Cows. Animals (Basel) 2024; 14:1459. [PMID: 38791678 PMCID: PMC11117242 DOI: 10.3390/ani14101459] [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: 04/08/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
We evaluated the relationship between decreased pregnancy-associated glycoprotein (PAG) levels, inflammatory parameters (serum amyloid A [SAA] and milk amyloid A [MAA]), postpartum inflammatory conditions (mastitis, ketosis, and follicular cysts), and the FOXP3 gene. Nineteen Holstein-Friesian cows were included in this study. Up to approximately eight weeks after delivery, weekly health examinations were performed for mastitis and ketosis, and reproductive organ ultrasonography was performed. The decreasing PAG rate was negatively correlated with SAA concentration (r = -0.493, p = 0.032). Cows with mastitis exhibited a slower trend of PAG decrease (p = 0.095), and a greater percentage of these cows had MAA concentrations above 12 µg/mL (p = 0.074) compared with those without mastitis. A negative correlation, although nonsignificant (r = -0.263, p = 0.385), was observed between the day-open period and decreased PAG rate. The day-open period was correlated with the presence or absence of follicular cysts (p = 0.046). Four cows that developed follicular cysts were homozygous for the G allele of the FOXP3 gene related to repeat breeders. These results indicate a relationship between a decreased PAG rate and inflammatory status during the postpartum period. Thus, suppressing inflammation during the perinatal period may improve reproductive efficiency in the dairy industry.
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Affiliation(s)
- Topas Wicaksono Priyo
- Joint Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (T.W.P.J.); (M.T.); (O.S.W.)
- Department of Reproduction and Obstetrics, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Ayane Edo
- Joint Faculty of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (A.E.); (Y.T.); (T.O.)
| | - Yasuho Taura
- Joint Faculty of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (A.E.); (Y.T.); (T.O.)
| | - Osamu Yamato
- Joint Faculty of Veterinary Science, Kagoshima University, Kagoshima 890-0065, Japan; (O.Y.); (M.S.I.); (S.M.)
- Division of Animal Husbandry, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Tetsushi Ono
- Joint Faculty of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (A.E.); (Y.T.); (T.O.)
| | - Masayasu Taniguchi
- Joint Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (T.W.P.J.); (M.T.); (O.S.W.)
- Joint Faculty of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (A.E.); (Y.T.); (T.O.)
| | - Oky Setyo Widodo
- Joint Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (T.W.P.J.); (M.T.); (O.S.W.)
- Division of Animal Husbandry, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Md Shafiqul Islam
- Joint Faculty of Veterinary Science, Kagoshima University, Kagoshima 890-0065, Japan; (O.Y.); (M.S.I.); (S.M.)
| | - Shinichiro Maki
- Joint Faculty of Veterinary Science, Kagoshima University, Kagoshima 890-0065, Japan; (O.Y.); (M.S.I.); (S.M.)
| | - Mitsuhiro Takagi
- Joint Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (T.W.P.J.); (M.T.); (O.S.W.)
- Joint Faculty of Veterinary Science, Yamaguchi University, Yamaguchi 753-8515, Japan; (A.E.); (Y.T.); (T.O.)
- Division of Animal Husbandry, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
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3
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Comparison of blood gas parameters, ions, and glucose concentration in polish Holstein-Friesian Dairy cows at different milk production levels. Sci Rep 2023; 13:1414. [PMID: 36697478 PMCID: PMC9876885 DOI: 10.1038/s41598-023-28644-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Genetic selection for increased milk yield has been a key driver of dairy intensification. The modern dairy cow produces much higher amounts of milk than the cattle of several years ago, and this may have an influence on hematologic values at different stages of lactation and on cows with different levels of milk production. The purpose of the study was to investigate the variations in blood parameters such as Ht, tHb, sO2, FO2Hb, FCOHb, FMetHb, FHHb, pH, pCO2, pO2, standard HCO3-, actual HCO3-, BE, BE ecf, ctCO2, BO2, p50, and ctO2 in cows at different milk production levels. In addition, ions such as Na+, K+ , Ca++, Ca++ (7.4), and Cl-, and AnGap and glucose were examined. Our findings indicated that differences in the examined blood parameters between low and high-production dairy cattle do exist. The most apparent differences were connected with blood pH (p < 0.01), oxygen metabolism (Ht, tHb, sO2, FO2Hb; p < 0.01), and glucose utilization (p < 0.01) The results confirm that the parameters connected with blood oxygen metabolism and glucose metabolism increase significantly in high-production animals. In conclusion, reference values should be considered in light of the lactation stage and level of milk production, because these might influence how changes should be interpreted. The main limitation of the study is the delay to analysis. However, the blood was properly stored (4C), thus changes were delayed. Anyway, it is very hard in the field practice to perform it within 5 min after the blood collection and according to studies it has low impact on clinical outcomes.
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Becker D, Weikard R, Heimes A, Hadlich F, Hammon HM, Meyerholz MM, Petzl W, Zerbe H, Schuberth HJ, Hoedemaker M, Schmicke M, Engelmann S, Kühn C. Allele-biased expression of the bovine APOB gene associated with the cholesterol deficiency defect suggests cis-regulatory enhancer effects of the LTR retrotransposon insertion. Sci Rep 2022; 12:13469. [PMID: 35931741 PMCID: PMC9355974 DOI: 10.1038/s41598-022-17798-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 07/31/2022] [Indexed: 11/09/2022] Open
Abstract
The insertion of an endogenous retroviral long terminal repeat (LTR) sequence into the bovine apolipoprotein B (APOB) gene is causal to the inherited genetic defect cholesterol deficiency (CD) observed in neonatal and young calves. Affected calves suffer from developmental abnormalities, symptoms of incurable diarrhoea and often die within weeks to a few months after birth. Neither the detailed effects of the LTR insertion on APOB expression profile nor the specific mode of inheritance nor detailed phenotypic consequences of the mutation are undisputed. In our study, we analysed German Holstein dairy heifers at the peak of hepatic metabolic load and exposed to an additional pathogen challenge for clinical, metabolic and hepatic transcriptome differences between wild type (CDF) and heterozygote carriers of the mutation (CDC). Our data revealed that a divergent allele-biased expression pattern of the APOB gene in heterozygous CDC animals leads to a tenfold higher expression of exons upstream and a decreased expression of exons downstream of the LTR insertion compared to expression levels of CDF animals. This expression pattern could be a result of enhancer activity induced by the LTR insertion, in addition to a previously reported artificial polyadenylation signal. Thus, our data support a regulatory potential of mobile element insertions. With regard to the phenotype generated by the LTR insertion, heterozygote CDC carriers display significantly differential hepatic expression of genes involved in cholesterol biosynthesis and lipid metabolism. Phenotypically, CDC carriers show a significantly affected lipomobilization compared to wild type animals. These results reject a completely recessive mode of inheritance for the CD defect, which should be considered for selection decisions in the affected population. Exemplarily, our results illustrate the regulatory impact of mobile element insertions not only on specific host target gene expression but also on global transcriptome profiles with subsequent biological, functional and phenotypic consequences in a natural in-vivo model of a non-model mammalian organism.
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Affiliation(s)
- Doreen Becker
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Rosemarie Weikard
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Annika Heimes
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Frieder Hadlich
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Harald M Hammon
- Institute of Nutritional Physiology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Marie M Meyerholz
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany
- Institute for Immunology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Wolfram Petzl
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany
| | - Holm Zerbe
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany
| | | | - Martina Hoedemaker
- Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Marion Schmicke
- Faculty of Natural Sciences III, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | - Susanne Engelmann
- Institute for Microbiology, Technical University Braunschweig, Brunswick, Germany
- Microbial Proteomics, Helmholtz Centre for Infection Research, Brunswick, Germany
| | - Christa Kühn
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany.
- Agricultural and Environmental Faculty, University of Rostock, Rostock, Germany.
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5
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Heimes A, Brodhagen J, Weikard R, Seyfert HM, Becker D, Meyerholz MM, Petzl W, Zerbe H, Hoedemaker M, Rohmeier L, Schuberth HJ, Schmicke M, Engelmann S, Kühn C. Hepatic Transcriptome Analysis Identifies Divergent Pathogen-Specific Targeting-Strategies to Modulate the Innate Immune System in Response to Intramammary Infection. Front Immunol 2020; 11:715. [PMID: 32411137 PMCID: PMC7202451 DOI: 10.3389/fimmu.2020.00715] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 03/30/2020] [Indexed: 12/22/2022] Open
Abstract
Mastitis is one of the major risks for public health and animal welfare in the dairy industry. Two of the most important pathogens to cause mastitis in dairy cattle are Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). While S. aureus generally induces a chronic and subclinical mastitis, E. coli is an important etiological pathogen resulting in an acute and clinical mastitis. The liver plays a central role in both, the metabolic and inflammatory physiology of the dairy cow, which is particularly challenged in the early lactation due to high metabolic and immunological demands. In the current study, we challenged the mammary glands of Holstein cows with S. aureus or E. coli, respectively, mimicking an early lactation infection. We compared the animals' liver transcriptomes with those of untreated controls to investigate the hepatic response of the individuals. Both, S. aureus and E. coli elicited systemic effects on the host after intramammary challenge and seemed to use pathogen-specific targeting strategies to bypass the innate immune system. The most striking result of our study is that we demonstrate for the first time that S. aureus intramammary challenge causes an immune response beyond the original local site of the mastitis. We found that in the peripheral liver tissue defined biological pathways are switched on in a coordinated manner to balance the immune response in the entire organism. TGFB1 signaling plays a crucial role in this context. Important pathways involving actin and integrin, key components of the cytoskeleton, were downregulated in the liver of S. aureus infected cows. In the hepatic transcriptome of E. coli infected cows, important components of the complement system were significantly lower expressed compared to the control cows. Notably, while S. aureus inhibits the cell signaling by Rho GTPases in the liver, E. coli switches the complement system off. Also, metabolic hepatic pathways (e.g., lipid metabolism) are affected after mammary gland challenge, demonstrating that the liver restricts metabolic tasks in favor of the predominant immune response after infection. Our results provide new insights for the infection-induced modifications of the dairy cow's hepatic transcriptome following mastitis.
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Affiliation(s)
- Annika Heimes
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Johanna Brodhagen
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Rosemarie Weikard
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Hans-Martin Seyfert
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Doreen Becker
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Marie M Meyerholz
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany
| | - Wolfram Petzl
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany
| | - Holm Zerbe
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany
| | - Martina Hoedemaker
- Clinic for Cattle, University of Veterinary Medicine Hanover, Hanover, Germany
| | - Laura Rohmeier
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Oberschleißheim, Germany.,Clinic for Swine, Small Ruminants, Forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hanover, Hanover, Germany
| | | | - Marion Schmicke
- Faculty of Natural Sciences III, Martin-Luther Universität Halle-Wittenberg, Halle, Germany
| | - Susanne Engelmann
- Technical University Braunschweig, Institute for Microbiology, Brunswick, Germany.,Helmholtz Centre for Infection Research, Microbial Proteomics, Brunswick, Germany
| | - Christa Kühn
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany.,Agricultural and Environmental Faculty, University Rostock, Rostock, Germany
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Heimes A, Brodhagen J, Weikard R, Becker D, Meyerholz MM, Petzl W, Zerbe H, Schuberth HJ, Hoedemaker M, Schmicke M, Engelmann S, Kühn C. Cows selected for divergent mastitis susceptibility display a differential liver transcriptome profile after experimental Staphylococcus aureus mammary gland inoculation. J Dairy Sci 2020; 103:6364-6373. [PMID: 32307160 DOI: 10.3168/jds.2019-17612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/15/2020] [Indexed: 01/12/2023]
Abstract
Infection and inflammation of the mammary gland, and especially prevention of mastitis, are still major challenges for the dairy industry. Different approaches have been tried to reduce the incidence of mastitis. Genetic selection of cows with lower susceptibility to mastitis promises sustainable success in this regard. Bos taurus autosome (BTA) 18, particularly the region between 43 and 59 Mb, harbors quantitative trait loci (QTL) for somatic cell score, a surrogate trait for mastitis susceptibility. Scrutinizing the molecular bases hereof, we challenged udders from half-sib heifers having inherited either favorable paternal haplotypes for somatic cell score (Q) or unfavorable haplotypes (q) with the Staphylococcus aureus pathogen. RNA sequencing was used for an in-depth analysis of challenge-related alterations in the hepatic transcriptome. Liver exerts highly relevant immune functions aside from being the key metabolic organ. Hence, a holistic approach focusing on the liver enabled us to identify challenge-related and genotype-dependent differentially expressed genes and underlying regulatory networks. In response to the S. aureus challenge, we found that heifers with Q haplotypes displayed more activated immune genes and pathways after S. aureus challenge compared with their q half-sibs. Furthermore, we found a significant enrichment of differentially expressed loci in the genomic target region on BTA18, suggesting the existence of a regionally acting regulatory element with effects on a variety of genes in this region.
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Affiliation(s)
- A Heimes
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, 18196 Dummerstorf, Germany
| | - J Brodhagen
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, 18196 Dummerstorf, Germany
| | - R Weikard
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, 18196 Dummerstorf, Germany
| | - D Becker
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, 18196 Dummerstorf, Germany
| | - M M Meyerholz
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, 85764 Oberschleißheim, Germany; Immunology Unit, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - W Petzl
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, 85764 Oberschleißheim, Germany
| | - H Zerbe
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, 85764 Oberschleißheim, Germany
| | - H-J Schuberth
- Immunology Unit, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - M Hoedemaker
- Clinic for Cattle, University of Veterinary Medicine Hannover, 30173 Hannover, Germany
| | - M Schmicke
- Faculty of Natural Sciences III, Martin-Luther Universität Halle-Wittenberg, 06120 Halle, Germany
| | - S Engelmann
- Technical University Braunschweig, Institute for Microbiology, 38023 Braunschweig, Germany; Helmholtz Centre for Infection Research, Microbial Proteomics, 38124 Braunschweig, Germany
| | - C Kühn
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, 18196 Dummerstorf, Germany; Agricultural and Environmental Faculty, University Rostock, 18059 Rostock, Germany.
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7
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Rohmeier L, Petzl W, Koy M, Eickhoff T, Hülsebusch A, Jander S, Macias L, Heimes A, Engelmann S, Hoedemaker M, Seyfert HM, Kühn C, Schuberth HJ, Zerbe H, Meyerholz MM. In vivo model to study the impact of genetic variation on clinical outcome of mastitis in uniparous dairy cows. BMC Vet Res 2020; 16:33. [PMID: 32005239 PMCID: PMC6995066 DOI: 10.1186/s12917-020-2251-8] [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: 07/05/2019] [Accepted: 01/20/2020] [Indexed: 02/07/2023] Open
Abstract
Background In dairy herds, mastitis causes detrimental economic losses. Genetic selection offers a sustainable tool to select animals with reduced susceptibility towards postpartum diseases. Studying underlying mechanisms is important to assess the physiological processes that cause differences between selected haplotypes. Therefore, the objective of this study was to establish an in vivo infection model to study the impact of selecting for alternative paternal haplotypes in a particular genomic region on cattle chromosome 18 for mastitis susceptibility under defined conditions in uniparous dairy cows. Results At the start of pathogen challenge, no significant differences between the favorable (Q) and unfavorable (q) haplotypes were detected. Intramammary infection (IMI) with Staphylococcus aureus 1027 (S. aureus, n = 24, 96 h) or Escherichia coli 1303 (E. coli, n = 12, 24 h) was successfully induced in all uniparous cows. This finding was confirmed by clinical signs of mastitis and repeated recovery of the respective pathogen from milk samples of challenged quarters in each animal. After S. aureus challenge, Q-uniparous cows showed lower somatic cell counts 24 h and 36 h after challenge (P < 0.05), lower bacterial shedding in milk 12 h after challenge (P < 0.01) and a minor decrease in total milk yield 12 h and 24 h after challenge (P < 0.01) compared to q-uniparous cows. Conclusion An in vivo infection model to study the impact of genetic selection for mastitis susceptibility under defined conditions in uniparous dairy cows was successfully established and revealed significant differences between the two genetically selected haplotype groups. This result might explain their differences in susceptibility towards IMI. These clinical findings form the basis for further in-depth molecular analysis to clarify the underlying genetic mechanisms for mastitis resistance.
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Affiliation(s)
- L Rohmeier
- Clinic for Ruminants with Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, 85764, Oberschleissheim, Germany.,Clinic for Swine, Small Ruminants, Forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover Foundation, Bischofsholer Damm 15, 30173, Hannover, Germany
| | - W Petzl
- Clinic for Ruminants with Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, 85764, Oberschleissheim, Germany
| | - M Koy
- Immunology Unit, University of Veterinary Medicine Hannover Foundation, Bünteweg 2, 30559, Hannover, Germany.,Clinic for Poultry, University of Veterinary Medicine Hannover Foundation, Bünteweg, 17 30559, Hannover, Germany
| | - T Eickhoff
- Immunology Unit, University of Veterinary Medicine Hannover Foundation, Bünteweg 2, 30559, Hannover, Germany
| | - A Hülsebusch
- Immunology Unit, University of Veterinary Medicine Hannover Foundation, Bünteweg 2, 30559, Hannover, Germany
| | - S Jander
- Immunology Unit, University of Veterinary Medicine Hannover Foundation, Bünteweg 2, 30559, Hannover, Germany
| | - L Macias
- Clinic for Ruminants with Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, 85764, Oberschleissheim, Germany
| | - A Heimes
- Leibniz Institute for Farm Animal Biology, Genome Biology, Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - S Engelmann
- Technical University Braunschweig, Institute for Microbiology, Inhoffenstrasse 7, 38124, Braunschweig, Germany.,Helmholtz Center for Infection Research, Microbial Proteomics, Inhoffenstrasse 7, 38124, Braunschweig, Germany
| | - M Hoedemaker
- Clinic for Cattle, University of Veterinary Medicine Hannover Foundation, Bischofsholer Damm 15, 30173, Hannover, Germany
| | - H M Seyfert
- Leibniz Institute for Farm Animal Biology, Genome Biology, Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - C Kühn
- Leibniz Institute for Farm Animal Biology, Genome Biology, Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.,Agricultural and Environmental Faculty, University Rostock, Justus-von-Liebig-Weg 6, 18059, Rostock, Germany
| | - H J Schuberth
- Immunology Unit, University of Veterinary Medicine Hannover Foundation, Bünteweg 2, 30559, Hannover, Germany
| | - H Zerbe
- Clinic for Ruminants with Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, 85764, Oberschleissheim, Germany
| | - M M Meyerholz
- Clinic for Ruminants with Ambulatory Clinic and Herd Health Services, Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, 85764, Oberschleissheim, Germany. .,Immunology Unit, University of Veterinary Medicine Hannover Foundation, Bünteweg 2, 30559, Hannover, Germany.
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