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Artículo

Perinatal exposure to Bisphenol A disturbs the early differentiation of male germ cells

Pagotto, Romina María del LujánIcon ; Santamaría, Clarisa GuillerminaIcon ; Harreguy, María Belén; Abud, Julián ElíasIcon ; Zenclussen, Maria LauraIcon ; Kass, LauraIcon ; Crispo, Martina; Muñoz de Toro, Monica Milagros; Rodriguez, Horacio AdolfoIcon ; Bollati Fogolín, Mariela
Fecha de publicación: 12/2020
Editorial: Pergamon-Elsevier Science Ltd
Revista: Reproductive Toxicology
ISSN: 0890-6238
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biología Reproductiva

Resumen

Understanding the effects of Bisphenol A (BPA) on early germ cell differentiation and their consequences in adult life is an area of growing interest in the field of endocrine disruption. Herein, we investigate whether perinatal exposure to BPA affects the differentiation of male germ cells in early life using a transgenic mouse expressing the GFP reporter protein under the Oct4 promoter. In this model, the expression of GFP reflects the expression of the Oct4 gene. This pluripotency gene is required to maintain the spermatogonial stem cells in an undifferentiated stage. Thus, GFP expression was used as a parameter to evaluate the effect of BPA on early germ cell development. Female pregnant transgenic mice were exposed to BPA by oral gavage, from embryonic day 5.5 to postnatal day 7 (PND7). The effects of BPA on male germ cell differentiation were evaluated at PND7, while sperm quality, testicular morphology, and protein expression of androgen receptor and proliferating cell nuclear antigen were studied at PND130. We found that perinatal/lactational exposure to BPA up-regulates the expression of Oct4-driven GFP in testicular cells at PND7. This finding suggests a higher proportion of undifferentiated spermatogonia in BPA-treated animals compared with non-exposed mice. Moreover, in adulthood, the number of spermatozoa per epididymis was reduced in those animals perinatally exposed to BPA. This work shows that developmental exposure to BPA disturbed the normal differentiation of male germ cells early in life, mainly by altering the expression of Oct4 and exerted long-lasting sequelae at the adult stage, affecting sperm count and testis.
Palabras clave: BPA , DIFFERENTIATION , GERM CELL , OCT4
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/139182
URL: https://linkinghub.elsevier.com/retrieve/pii/S0890623820302082
DOI: http://dx.doi.org/10.1016/j.reprotox.2020.09.004
Colecciones
Articulos(ISAL)
Articulos de INSTITUTO DE SALUD Y AMBIENTE DEL LITORAL
Citación
Pagotto, Romina María del Luján; Santamaría, Clarisa Guillermina; Harreguy, María Belén; Abud, Julián Elías; Zenclussen, Maria Laura; et al.; Perinatal exposure to Bisphenol A disturbs the early differentiation of male germ cells; Pergamon-Elsevier Science Ltd; Reproductive Toxicology; 98; 12-2020; 117-124
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