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Sci Rep. 2017 Aug 14;7(1):8102. doi: 10.1038/s41598-017-08733-0.

Stress Induced Polarization of Immune-Neuroendocrine Phenotypes in Gallus gallus.

Author information

1
Instituto de Investigaciones Biológicas y Tecnológicas (IIByT, CONICET-UNC) e Instituto de Ciencia y Tecnología de los Alimentos, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Cordoba, CP, 5000, Argentina. franco.nicolas.nazar@unc.edu.ar.
2
NEIKER-Tecnalia, Arkaute Agrifood Campus, Departamento de Producción Animal, Vitoria-Gasteiz E-01080 e IKERBASQUE, Basque Foundation for Science, Bilbao, Spain.
3
Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI, CONICET-UNC), Cordoba, CP, 5000, Argentina.
4
Instituto de Investigaciones Biológicas y Tecnológicas (IIByT, CONICET-UNC) e Instituto de Ciencia y Tecnología de los Alimentos, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Cordoba, CP, 5000, Argentina. raul.marin@unc.edu.ar.

Abstract

Immune-neuroendocrine phenotypes (INPs) stand for population subgroups differing in immune-neuroendocrine interactions. While mammalian INPs have been characterized thoroughly in rats and humans, avian INPs were only recently described in Coturnix coturnix (quail). To assess the scope of this biological phenomenon, herein we characterized INPs in Gallus gallus (a domestic hen strain submitted to a very long history of strong selective breeding pressure) and evaluated whether a social chronic stress challenge modulates the individuals' interplay affecting the INP subsets and distribution. Evaluating plasmatic basal corticosterone, interferon-γ and interleukin-4 concentrations, innate/acquired leukocyte ratio, PHA-P skin-swelling and induced antibody responses, two opposite INP profiles were found: LEWIS-like (15% of the population) and FISCHER-like (16%) hens. After chronic stress, an increment of about 12% in each polarized INP frequency was found at expenses of a reduction in the number of birds with intermediate responses. Results show that polarized INPs are also a phenomenon occurring in hens. The observed inter-individual variation suggest that, even after a considerable selection process, the population is still well prepared to deal with a variety of immune-neuroendocrine challenges. Stress promoted disruptive effects, leading to a more balanced INPs distribution, which represents a new substrate for challenging situations.

PMID:
28808318
PMCID:
PMC5556001
DOI:
10.1038/s41598-017-08733-0
[Indexed for MEDLINE]
Free PMC Article

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