Magno, L;
Barry, C;
Schmidt-Hieber, C;
Theodotou, P;
Häusser, M;
Kessaris, N;
(2017)
NKX2-1 Is Required in the Embryonic Septum for Cholinergic System Development, Learning, and Memory.
Cell Reports
, 20
(7)
pp. 1572-1584.
10.1016/j.celrep.2017.07.053.
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Abstract
The transcription factor NKX2-1 is best known for its role in the specification of subsets of cortical, striatal, and pallidal neurons. We demonstrate through genetic fate mapping and intersectional focal septal deletion that NKX2-1 is selectively required in the embryonic septal neuroepithelium for the development of cholinergic septohippocampal projection neurons and large subsets of basal forebrain cholinergic neurons. In the absence of NKX2-1, these neurons fail to develop, causing alterations in hippocampal theta rhythms and severe deficiencies in learning and memory. Our results demonstrate that learning and memory are dependent on NKX2-1 function in the embryonic septum and suggest that cognitive deficiencies that are sometimes associated with pathogenic mutations in NKX2-1 in humans may be a direct consequence of loss of NKX2-1 function.
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