Effect of IL8 haplotype on immunological traits in periparturient dairy cows.

Autor: De Matteis G; Research Centre for Animal Production and Aquaculture, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Via Salaria, 31-Monterotondo, Rome, Italy. Electronic address: giovanna.dematteis@crea.gov.it., Scatà MC; Research Centre for Animal Production and Aquaculture, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Via Salaria, 31-Monterotondo, Rome, Italy., Grandoni F; Research Centre for Animal Production and Aquaculture, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Via Salaria, 31-Monterotondo, Rome, Italy., Crisà A; Research Centre for Animal Production and Aquaculture, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Via Salaria, 31-Monterotondo, Rome, Italy., O'Brien MB; Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co Meath, Ireland; School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland., Meade KG; School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland., Catillo G; Research Centre for Animal Production and Aquaculture, Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Via Salaria, 31-Monterotondo, Rome, Italy.
Jazyk: angličtina
Zdroj: Veterinary immunology and immunopathology [Vet Immunol Immunopathol] 2021 Aug; Vol. 238, pp. 110288. Date of Electronic Publication: 2021 Jun 19.
DOI: 10.1016/j.vetimm.2021.110288
Abstrakt: Interleukin 8 (IL8) is a major mediator of the innate immune response. Polymorphisms in this gene are associated with susceptibility to inflammatory disease in humans. Two major promoter polymorphic haplotypes (IL8-h1 and IL8-h2) segregating in cattle populations have shown a significant effect on the immune response profile in calves but their implications for transition cow immunity have not been established. The aims of this study were to assess functional relevance of the IL8 haplotypes on the immunological traits of periparturient cows (n = 32) belonging to three genetic groups: Holstein (HO), Simmental (SI) and their crosses (CR) and to evaluate the frequency of IL8 haplotypes in the HO (dairy) and SI (dual purpose) pure breeds. IL8 haplotypes showed a significant effect on circulating number of both T helper lymphocytes (P = 0.0133) and T cytotoxic lymphocytes (P = 0.0024). Differences in percentage of CD14 + monocytes and T lymphocyte subsets were found between haplotype groups at different time points. Plasma concentrations of Serum Amyloid A (SAA) and Haptoglobin (Hp) were enhanced at calving in IL8-h2 (P = 0.0019, P = 0.0029) and IL8-het (P = 0.050 and P = 0.052) respectively, compared with IL8-h1 cows. In contrast, significantly lower levels of reactive oxygen metabolites (d-ROMs) activation were identified in IL8-h2 and IL8-het cows after calving compared with IL8-h1 cows. Furthermore, genotyping results showed that SI cows have a high frequency of the homozygous IL8-h2 haplotype compared to the HO cows (87.5 % vs 40 %) which reflects the different selective pressure between the two pure breeds. In conclusion, our preliminary data suggests that IL8 promoter haplotype is associated with significant and dynamic changes in immunological traits during peripartum and early lactation period. Future work will focus on a more comprehensive assessment of immune changes in additional cows.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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