Maternal Western Style Diet Increases Susceptibility to Chemically-Induced Mammary Carcinogenesis in Female Rats Offspring

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorLopes, Gisele A. D.-
Autor(es): dc.creatorFan, William Y. C.-
Autor(es): dc.creatorCiol, Heloisa-
Autor(es): dc.creatorBidinotto, Lucas T.-
Autor(es): dc.creatorRodrigues, Maria Aparecida Marchesan-
Autor(es): dc.creatorBarbisan, Luis Fernando-
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Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFundação para o Desenvolvimento da UNESP (FUNDUNESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFUNDUNESP: 0016/010/13-PROPe/CDC-
Descrição: dc.descriptionProcesso FAPESP: 07/57408-0-
Descrição: dc.descriptionProcesso FAPESP: 11/06669-4-
Descrição: dc.descriptionCNPq: 2009/11026-
Descrição: dc.descriptionThe present study investigated whether maternal exposure to western style diet (WD) increases susceptibility to mammary carcinogenesis induced by N-methyl-N-nitrosourea (MNU) in female offspring. Pregnant female Sprague-Dawley rats received WD diet or control diet from gestational day 12 until postnatal day (PND) 21. At PND 21, female offspring received a single dose of MNU (50mg/kg body weight) and were fed chow diet until PND 110. Mammary gland structures were assessed on whole-mount preparations in the offspring at PND 21, and tumor morphology was examined at PND 110. Immunohistochemical analysis for cell proliferation (PCNA), apoptosis (cleaved caspase-3) and estrogen receptor alpha (ER-alpha) was performed in mammary terminal end buds (TEBs) at PND 21, and PCNA, ER-alpha, and p63 analysis in mammary tumors at PND 110. Maternal WD intake induced a significant increase in the number of TEBs (P = 0.024) and in PCNA labeling index (P < 0.020) in the mammary glands at PND 21. Tumor multiplicity, tumor weight, and PCNA labeling indexes were significantly higher in the WD offspring than that of the control offspring (P < 0.05). These findings indicate that maternal western style diet potentially enhanced the development of mammary tumors induced by MNU in female offspring, possibly by affecting the mammary gland differentiation.-
Formato: dc.format1293-1303-
Idioma: dc.languageen-
Publicador: dc.publisherRoutledge Journals, Taylor & Francis Ltd-
Relação: dc.relationNutrition And Cancer-an International Journal-
Relação: dc.relation2.261-
Relação: dc.relation0,745-
Direitos: dc.rightsclosedAccess-
Título: dc.titleMaternal Western Style Diet Increases Susceptibility to Chemically-Induced Mammary Carcinogenesis in Female Rats Offspring-
Tipo de arquivo: dc.typelivro digital-
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