α5 nAChR modulation of the prefrontal cortex makes attention resilient.

Abstract:

:A loss-of-function polymorphism in the α5 nicotinic acetylcholine receptor (nAChR) subunit gene has been linked to both drug abuse and schizophrenia. The α5 nAChR subunit is strategically positioned in the prefrontal cortex (PFC), where a loss-of-function in this subunit may contribute to cognitive disruptions in both disorders. However, the specific contribution of α5 to PFC-dependent cognitive functions has yet to be illustrated. In the present studies, we used RNA interference to knockdown the α5 nAChR subunit in the PFC of adult rats. We provide evidence that through its contribution to cholinergic modulation of cholinergic modulation of neurons in the PFC, the α5 nAChR plays a specific role in the recovery of attention task performance following distraction. Our combined data reveal the potent ability of this subunit to modulate the PFC and cognitive functions controlled by this brain region that are impaired in disease.

journal_name

Brain Struct Funct

authors

Howe WM,Brooks JL,Tierney PL,Pang J,Rossi A,Young D,Dlugolenski K,Guillmette E,Roy M,Hales K,Kozak R

doi

10.1007/s00429-017-1601-1

subject

Has Abstract

pub_date

2018-03-01 00:00:00

pages

1035-1047

issue

2

eissn

1863-2653

issn

1863-2661

pii

10.1007/s00429-017-1601-1

journal_volume

223

pub_type

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