Abstract:
:CDKL5 deficiency disorder (CDD) is characterized by epilepsy, intellectual disability, and autistic features, and CDKL5-deficient mice exhibit a constellation of behavioral phenotypes reminiscent of the human disorder. We previously found that CDKL5 dysfunction in forebrain glutamatergic neurons results in deficits in learning and memory. However, the pathogenic origin of the autistic features of CDD remains unknown. Here, we find that selective loss of CDKL5 in GABAergic neurons leads to autistic-like phenotypes in mice accompanied by excessive glutamatergic transmission, hyperexcitability, and increased levels of postsynaptic NMDA receptors. Acute, low-dose inhibition of NMDAR signaling ameliorates autistic-like behaviors in GABAergic knockout mice, as well as a novel mouse model bearing a CDD-associated nonsense mutation, CDKL5 R59X, implicating the translational potential of this mechanism. Together, our findings suggest that enhanced NMDAR signaling and circuit hyperexcitability underlie autistic-like features in mouse models of CDD and provide a new therapeutic avenue to treat CDD-related symptoms.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Tang S,Terzic B,Wang IJ,Sarmiento N,Sizov K,Cui Y,Takano H,Marsh ED,Zhou Z,Coulter DAdoi
10.1038/s41467-019-10689-wsubject
Has Abstractpub_date
2019-06-14 00:00:00pages
2655issue
1issn
2041-1723pii
10.1038/s41467-019-10689-wjournal_volume
10pub_type
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