Stereotypical alterations in cortical patterning are associated with maternal illness-induced placental dysfunction.
J Neurosci
; 33(43): 16874-88, 2013 Oct 23.
Article
em En
| MEDLINE
| ID: mdl-24155294
ABSTRACT
We have previously shown in mice that cytokine-mediated damage to the placenta can temporarily limit the flow of nutrients and oxygen to the fetus. The placental vulnerability is pronounced before embryonic day 11, when even mild immune challenge results in fetal loss. As gestation progresses, the placenta becomes increasingly resilient to maternal inflammation, but there is a narrow window in gestation when the placenta is still vulnerable to immune challenge yet resistant enough to allow for fetal survival. This gestational window correlates with early cortical neurogenesis in the fetal brain. Here, we show that maternal illness during this period selectively alters the abundance and laminar positioning of neuronal subtypes influenced by the Tbr1, Satb2, and Ctip2/Fezf2 patterning axis. The disturbances also lead to a laminar imbalance in the proportions of projection neurons and interneurons in the adult and are sufficient to cause changes in social behavior and cognition. These data illustrate how the timing of an illness-related placental vulnerability causes developmental alterations in neuroanatomical systems and behaviors that are relevant to autism spectrum disorders.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Placenta
/
Doenças Placentárias
/
Complicações Infecciosas na Gravidez
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Córtex Cerebral
/
Neurogênese
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Risk_factors_studies
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Neurosci
Ano de publicação:
2013
Tipo de documento:
Article