Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog
In the dog, implantation takes place at approximately 17 days of embryonal life and, while exposed to relatively high circulating progesterone concentrations, embryos presence is required for the formation of decidua. Furthermore, a balance between pro- and anti-inflammatory responses in conceptus-m...
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Online Access: | http://hdl.handle.net/10174/29352 https://doi.org/10.3389/fvets.2020.625921 |
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ftunivevora:oai:dspace.uevora.pt:10174/29352 2023-09-05T13:18:44+02:00 Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog Tavares Pereira, Miguel Nowaczyk, Renata Payan-Carreira, Rita Miranda, Sónia Aslan, Selim Kaya, Duygu Kowalewski, Mariusz P. 2021-02-09 http://hdl.handle.net/10174/29352 https://doi.org/10.3389/fvets.2020.625921 por por Tavares Pereira M., Nowaczyk R., Payan-Carreira R., Miranda S., Aslan S., Kaya D., Kowalewski M.P. (2021) Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog. Frontiers in Veterinary Science, 7: art. 625921 DOI=10.3389/fvets.2020.625921 https://doi.org/10.3389/fvets.2020.625921 http://hdl.handle.net/10174/29352 DMV nd rtpayan@uevora.pt 379 doi:10.3389/fvets.2020.625921 openAccess dog (Canis lupus familiaris) immune system uterus early pregnancy embryo-maternal communication article 2021 ftunivevora https://doi.org/10.3389/fvets.2020.625921 2023-08-14T17:47:30Z In the dog, implantation takes place at approximately 17 days of embryonal life and, while exposed to relatively high circulating progesterone concentrations, embryos presence is required for the formation of decidua. Furthermore, a balance between pro- and anti-inflammatory responses in conceptus-maternal communication is crucial for the onset of pregnancy. Strikingly, the understanding of such immune mechanisms in canine reproduction is still elusive. Here, canine uterine samples from pre-implantation (day 10–12, E+) and corresponding non-pregnant controls (E–), implantation (day 17,Imp) and post-implantation (day 18–25, Post-Imp) stages of pregnancy were used to investigate the expression and localization of several immune-related factors. The most important findings indicate increased availability of CD4, MHCII, NCR1, IDO1, AIF1, CD25, CCR7, and IL6 in response to embryo presence (E+), while FoxP3 and CCL3 were more abundant in E– samples. Implantation was characterized by upregulated levels of FoxP3, IL12a, ENG, and CDH1, whereas CD4, CCR7, IL8, and -10 were less represented. Following implantation, decreased transcript levels of TNFR1, MHCII, NCR1, TLR4, CD206, FoxP3, and IL12a were observed concomitantly with the highest expression of IL6 and IL1β. MHCII, CD86, CD206, CD163, TNFa, IDO1, and AIF1 were immunolocalized in macrophages, CD4 and Nkp46 in lymphocytes, and some signals of IDO1, AIF1, and TNF-receptors could also be identified in endothelial cells and/or uterine glands. Cumulatively, new insights regarding uterine immunity in the peri-implantation period are provided, with apparent moderated pro-inflammatory signals prevailing during pre-implantation, while implantation and early trophoblast invasion appear to beassociated with immunomodulatory and rather anti-inflammatory conditions. Article in Journal/Newspaper Canis lupus Repositório Científico da Universidade de Évora Frontiers in Veterinary Science 7 |
institution |
Open Polar |
collection |
Repositório Científico da Universidade de Évora |
op_collection_id |
ftunivevora |
language |
Portuguese |
topic |
dog (Canis lupus familiaris) immune system uterus early pregnancy embryo-maternal communication |
spellingShingle |
dog (Canis lupus familiaris) immune system uterus early pregnancy embryo-maternal communication Tavares Pereira, Miguel Nowaczyk, Renata Payan-Carreira, Rita Miranda, Sónia Aslan, Selim Kaya, Duygu Kowalewski, Mariusz P. Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog |
topic_facet |
dog (Canis lupus familiaris) immune system uterus early pregnancy embryo-maternal communication |
description |
In the dog, implantation takes place at approximately 17 days of embryonal life and, while exposed to relatively high circulating progesterone concentrations, embryos presence is required for the formation of decidua. Furthermore, a balance between pro- and anti-inflammatory responses in conceptus-maternal communication is crucial for the onset of pregnancy. Strikingly, the understanding of such immune mechanisms in canine reproduction is still elusive. Here, canine uterine samples from pre-implantation (day 10–12, E+) and corresponding non-pregnant controls (E–), implantation (day 17,Imp) and post-implantation (day 18–25, Post-Imp) stages of pregnancy were used to investigate the expression and localization of several immune-related factors. The most important findings indicate increased availability of CD4, MHCII, NCR1, IDO1, AIF1, CD25, CCR7, and IL6 in response to embryo presence (E+), while FoxP3 and CCL3 were more abundant in E– samples. Implantation was characterized by upregulated levels of FoxP3, IL12a, ENG, and CDH1, whereas CD4, CCR7, IL8, and -10 were less represented. Following implantation, decreased transcript levels of TNFR1, MHCII, NCR1, TLR4, CD206, FoxP3, and IL12a were observed concomitantly with the highest expression of IL6 and IL1β. MHCII, CD86, CD206, CD163, TNFa, IDO1, and AIF1 were immunolocalized in macrophages, CD4 and Nkp46 in lymphocytes, and some signals of IDO1, AIF1, and TNF-receptors could also be identified in endothelial cells and/or uterine glands. Cumulatively, new insights regarding uterine immunity in the peri-implantation period are provided, with apparent moderated pro-inflammatory signals prevailing during pre-implantation, while implantation and early trophoblast invasion appear to beassociated with immunomodulatory and rather anti-inflammatory conditions. |
format |
Article in Journal/Newspaper |
author |
Tavares Pereira, Miguel Nowaczyk, Renata Payan-Carreira, Rita Miranda, Sónia Aslan, Selim Kaya, Duygu Kowalewski, Mariusz P. |
author_facet |
Tavares Pereira, Miguel Nowaczyk, Renata Payan-Carreira, Rita Miranda, Sónia Aslan, Selim Kaya, Duygu Kowalewski, Mariusz P. |
author_sort |
Tavares Pereira, Miguel |
title |
Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog |
title_short |
Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog |
title_full |
Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog |
title_fullStr |
Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog |
title_full_unstemmed |
Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog |
title_sort |
selected uterine immune events associated with the establishment of pregnancy in the dog |
publishDate |
2021 |
url |
http://hdl.handle.net/10174/29352 https://doi.org/10.3389/fvets.2020.625921 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_relation |
Tavares Pereira M., Nowaczyk R., Payan-Carreira R., Miranda S., Aslan S., Kaya D., Kowalewski M.P. (2021) Selected Uterine Immune Events Associated With the Establishment of Pregnancy in the Dog. Frontiers in Veterinary Science, 7: art. 625921 DOI=10.3389/fvets.2020.625921 https://doi.org/10.3389/fvets.2020.625921 http://hdl.handle.net/10174/29352 DMV nd rtpayan@uevora.pt 379 doi:10.3389/fvets.2020.625921 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.3389/fvets.2020.625921 |
container_title |
Frontiers in Veterinary Science |
container_volume |
7 |
_version_ |
1776199614213390336 |