Caracterización genética y origen de las neuronas de la región claustroamigdalina en ratón.

Résumé

The objective of this Doctoral Thesis was to deepen in the study of the development of the claustroamygdaloid complex in mouse. For that, we pursued to study: 1) which components derive from either the lateral or ventral pallium based on differential expression of regulatory genes (Dbx1, Lhx9, Lhx2, Lmo3, Lmo4, Cadherina 8 y Emx1) during embryonic development; 2) the development of interneurons of the claustroamygdaloid complex that contain calcium binding proteins (including the development of its local circuits); 3) the histogenetic origin of these interneurons, by means of organotypic cultures and analysis of the transgenic mouse Nkx2.1-Cre/Rosa26-GFP (Kessaris and col. 2006). Our data allowed the distinction between lateral and ventral pallial components of the complex, which contain multiple subtypes of interneurons with origins in different subpallial subdivisions. This opens new venues for future investigations on the connectivity and function of each interneuron subtype, and on their involvement in neuropsychiatric disorders.