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https://observatorio.fm.usp.br/handle/OPI/29530
Title: | Minipuberty and Sexual Dimorphism in the Infant Human Thymus |
Authors: | MOREIRA-FILHO, Carlos Alberto; BANDO, Silvia Yumi; BERTONHA, Fernanda Bernardi; FERREIRA, Leandro Rodrigues; VINHAS, Christiana de Freitas; OLIVEIRA, Lucila Habib Bourguignon; ZERBINI, Maria Claudia Nogueira; FURLANETTO, Glaucio; CHACCUR, Paulo; CARNEIRO-SAMPAIO, Magda |
Citation: | SCIENTIFIC REPORTS, v.8, article ID 13169, 13p, 2018 |
Abstract: | AIRE expression in thymus is downregulated by estrogen after puberty, what probably renders women more susceptible to autoimmune disorders. Here we investigated the effects of minipuberty on male and female infant human thymic tissue in order to verify if this initial transient increase in sex hormones - along the first six months of life - could affect thymic transcriptional network regulation and AIRE expression. Gene co-expression network analysis for differentially expressed genes and miRNA-target analysis revealed sex differences in thymic tissue during minipuberty, but such differences were not detected in the thymic tissue of infants aged 7-18 months, i.e. the non-puberty group. AIRE expression was essentially the same in both sexes in minipuberty and in non-puberty groups, as assessed by genomic and immunohistochemical assays. However, A/RE-interactors networks showed several differences in all groups regarding gene-gene expression correlation. Therefore, minipuberty and genomic mechanisms interact in shaping thymic sexual dimorphism along the first six months of life. |
Appears in Collections: | Artigos e Materiais de Revistas Científicas - FM/MPE Artigos e Materiais de Revistas Científicas - FM/MPT Artigos e Materiais de Revistas Científicas - LIM/14 Artigos e Materiais de Revistas Científicas - LIM/36 |
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art_MOREIRA-FILHO_Minipuberty_and_Sexual_Dimorphism_in_the_Infant_Human_2018.PDF | publishedVersion (English) | 2.93 MB | Adobe PDF | View/Open |
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