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Article . 2019
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Inmunolocalización de la integrina α5β1, la laminina y el colágeno tipo V en placenta porcina en diferentes etapas gestacionales

Authors: Velez, Carolina; Williamson, Delia Maria; Clauzure, Mariangeles; Koncurat, Mirta Adriana; Barbeito, Claudio Gustavo;

Inmunolocalización de la integrina α5β1, la laminina y el colágeno tipo V en placenta porcina en diferentes etapas gestacionales

Abstract

Las moléculas de adhesión son indispensables para el anclaje y la adhesión de los epitelios materno y fetal en la placentación porcina. El objetivo fue determinar la inmunolocalización de la integrina α5β1, la laminina y el colágeno V, en placentas porcinas de diferentes períodos de gestación: 30, 60, 70 y 114 días de gestación (dg; n=23). Se determinó la inmunolocalización de las moléculas por inmunohistoquímica. La integrina α5β1 fue fuerte en el tejido conectivo del endometrio y alrededor de vasos sanguíneos en placenta materna y fetal. La laminina se identificó en la interfase feto-materna porcina, a los 30, 60 y 114 dg de forma leve; en cambio, la intensidad de marcación fue fuerte en estroma endometrial, glándulas endometriales, en los vasos sanguíneos y en la membrana basal de las vellosidades a lo largo de toda la gestación. El colágeno V se evidenció con una fuerte intensidad en el mesénquima de las vellosidades placentarias maternas, y alrededor de los vasos sanguíneos en placenta fetal y materna. En base a nuestros resultados, postulamos que la integrina α5β1, la laminina y el colágeno tipo V, podrían cumplir un rol crucial en el desarrollo y el mantenimiento de la arquitectura placentaria y angiogénesis.

Adhesion molecules are essential for anchoring and adhesion during swine placentation in both the maternal and the fetal epithelia. The aim of this work was to determine the expression of α5β1 integrin and its receptors, laminin and collagen type V, in swine placentas at different gestation intervals: 30, 60, 70 and 114 days of gestation (dg; n = 23). The expression of these molecules was determined by immunohistochemistry. Here we found that the α5β1 integrin was expressed at high levels in endometrial connective tissue and around blood vessels of the maternal and fetal placenta. Laminin was expressed in the swine fetal-maternal interface, at 30, 60 and 114 dg in a mild manner. On the other hand, the expression was strong in endometrial stroma, endometrial glands, blood vessels and basal membrane of the villi throughout pregnancy. Collagen type V was strongly expressed in the mesenchyme villi of the maternal placenta and around the fetal and maternal placenta vessels. Based on our results, we postulate that α5β1 integrin, and its receptors, could play a crucial role in the development and maintenance of placental architecture and angiogenesis.

Fil: Williamson, Delia Maria. Universidad Nacional de La Pampa. Facultad de Ciencias Veterinarias. Departamento Ciencias Básicas. Cátedra de Biología General; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Velez, Carolina. Universidad Nacional de La Pampa. Facultad de Ciencias Veterinarias. Departamento Ciencias Básicas. Cátedra de Biología General; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Barbeito, Claudio Gustavo. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Clauzure, Mariangeles. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina

Fil: Koncurat, Mirta Adriana. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina

Country
Argentina
Keywords

https://purl.org/becyt/ford/4.3, Colágeno, https://purl.org/becyt/ford/4, Laminina, Integrinas, Gestación porcina

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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