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Modeling a genetic risk for schizophrenia in iPSCs and mice reveals neural stem cell deficits associated with adherens junctions and polarity.

Abstract：

:Defects in brain development are believed to contribute toward the onset of neuropsychiatric disorders, but identifying specific underlying mechanisms has proven difficult. Here, we took a multifaceted approach to investigate why 15q11.2 copy number variants are prominent risk factors for schizophrenia and autism. First, we show that human iPSC-derived neural progenitors carrying 15q11.2 microdeletion exhibit deficits in adherens junctions and apical polarity. This results from haploinsufficiency of CYFIP1, a gene within 15q11.2 that encodes a subunit of the WAVE complex, which regulates cytoskeletal dynamics. In developing mouse cortex, deficiency in CYFIP1 and WAVE signaling similarly affects radial glial cells, leading to their ectopic localization outside of the ventricular zone. Finally, targeted human genetic association analyses revealed an epistatic interaction between CYFIP1 and WAVE signaling mediator ACTR2 and risk for schizophrenia. Our findings provide insight into how CYFIP1 regulates neural stem cell function and may contribute to the susceptibility of neuropsychiatric disorders.

journal_name

Cell Stem Cell

journal_title

Cell stem cell

authors

Yoon KJ,Nguyen HN,Ursini G,Zhang F,Kim NS,Wen Z,Makri G,Nauen D,Shin JH,Park Y,Chung R,Pekle E,Zhang C,Towe M,Hussaini SM,Lee Y,Rujescu D,St Clair D,Kleinman JE,Hyde TM,Krauss G,Christian KM,Rapoport JL,Wein

doi

10.1016/j.stem.2014.05.003

subject

Has Abstract

pub_date

2014-07-03 00:00:00

pages

79-91

issue

1

eissn

1934-5909

issn

1875-9777

pii

S1934-5909(14)00190-8

journal_volume

15

pub_type

杂志文章

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