Most calbindin‐immunoreactive neurons, but few calretinin‐immunoreactive neurons, express the m1 acetylcholine receptor in the middle temporal visual area of the macaque monkey
Year: 2018
Type: article
Abstract: INTRODUCTION: Release of the neuromodulator acetylcholine into cortical circuits supports cognition, although its precise role and mechanisms of action are not well understood. Little is known about functional differences in cholinergic modulatory effects across cortical model systems, but anatomical evidence suggests that such differences likely exist because, for example, the expression of cholinergic receptors differs profoundly both within and between species. METHODS: In the primary visual cortex (V1) of macaque monkeys, cholinergic receptors are strongly expressed by inhibitory interneurons. Using dual-immunofluorescence confocal microscopy, we examine m1 muscarinic acetylcholine receptor expression by two subclasses of inhibitory interneurons-identified by their expression of the calcium-binding proteins calbindin and calretinin-in the middle temporal extrastriate area (MT) of the macaque. RESULTS AND CONCLUSIONS: We find that the majority of calbindin-immunoreactive neurons (55%) and only few calretinin-immunoreactive neurons (10%) express the m1 acetylcholine receptor. These results differ from the pattern observed in V1 of the same species, lending further support to the notion that cholinergic modulation in the cortex is tuned such that different cortical compartments will respond to acetylcholine release in different ways.
Source: Brain and Behavior
DOI: 10.1002/brb3.1071
Authors: Jennifer J. Coppola, Anita A. Disney
Institution: Vanderbilt University
Language: English
Subfield: Cellular and Molecular Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $3,630
Awards: G1149166549, G1344704808, G1688481553, G2019238319, G2560423281, G3865556588, Vanderbilt Mouse Metabolic Phenotyping Center, G4320917349, G4571409073, G53215581, G5853943267, G6604743915, G7220527126, G725763919, G8245716232, G8805630644, Cholinergic Mechanisms in Spatial Attention, Confocal Microscope for Live Embryo Imaging in a Shared Resource Facility, G9000002043, G9000060478, G9000081609, G9000106052, G9000159340, Molecular and Cellular Basis for Digestive Diseases, Vanderbilt Diabetes Research Center, Core Grant in Vision Research
OpenAlex ID: W2951643339