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Conceptus-modulated innate immune function during early pregnancy in ruminants: a review

Rocha, Cecilia Constantino; Silveira, Juliano Coelho da; Forde, Niamh; Binelli, Mario; Pugliesi, Guilherme.
Anim. Reprod.; 18(1): e20200048, fev. 2021. ilus
Artigo em Inglês | VETINDEX | ID: vti-31083


This review focuses on the innate immune events modulated by conceptus signaling during early pregnancy in ruminants. Interferon-tau (IFN-) plays a role in the recognition of pregnancy in ruminants, which involves more than the inhibition of luteolytic pulses of PGF2 to maintain corpus luteum function. For successful pregnancy establishment, the allogenic conceptus needs to prevent rejection by the female. Therefore, IFN- exerts paracrine and endocrine actions to regulate the innate immune system and prevent conceptus rejection. Additionally, other immune regulators work in parallel with IFN-, such as the pattern recognition receptors (PRR). These receptors are activated during viral and bacterial infections and in early pregnancy, but it remains unknown whether PPR expression and function are controlled by IFN-. Therefore, this review focuses on the main components of the innate immune response that are involved with early pregnancy and their importance to avoid conceptus rejection.(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1