Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.

Somatostatin-expressing (SOM+), inhibitory interneurons represent a heterogeneous group of cells and given their remarkable diversity, classification of SOM+ interneurons remains a challenging task. Electrophysiological, morphological and neurochemical classes of SOM+ interneurons have been proposed...

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Main Authors: Therese Riedemann, Tobias Straub, Bernd Sutor
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6042774?pdf=render
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author Therese Riedemann
Tobias Straub
Bernd Sutor
author_facet Therese Riedemann
Tobias Straub
Bernd Sutor
author_sort Therese Riedemann
collection DOAJ
description Somatostatin-expressing (SOM+), inhibitory interneurons represent a heterogeneous group of cells and given their remarkable diversity, classification of SOM+ interneurons remains a challenging task. Electrophysiological, morphological and neurochemical classes of SOM+ interneurons have been proposed in the past but it remains unclear as to what extent these classes are congruent. We performed whole-cell patch-clamp recordings from 127 GFP-labeled SOM+ interneurons ('GIN') of the superficial cingulate cortex with subsequent biocytin-filling and immunocytochemical labeling. Principal component analysis followed by k-means clustering predicted two putative subtypes of SOM+ interneurons, which we designated as group I and group II GIN. A key finding of our study is the fact that these electrophysiologically and morphologically distinct groups of SOM+ interneurons can be correlated with two neurochemical subtypes of SOM+ interneurons described recently in our laboratory. In particular, all SOM+ interneurons expressing calbindin but no calretinin could be classified as group I GIN, whereas all but one neuropeptide Y- and calretinin-positive interneurons were found in group II.
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spelling doaj.art-647daf90ff2b4d10be01083dda6a9ae62022-12-21T21:56:45ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01137e020056710.1371/journal.pone.0200567Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.Therese RiedemannTobias StraubBernd SutorSomatostatin-expressing (SOM+), inhibitory interneurons represent a heterogeneous group of cells and given their remarkable diversity, classification of SOM+ interneurons remains a challenging task. Electrophysiological, morphological and neurochemical classes of SOM+ interneurons have been proposed in the past but it remains unclear as to what extent these classes are congruent. We performed whole-cell patch-clamp recordings from 127 GFP-labeled SOM+ interneurons ('GIN') of the superficial cingulate cortex with subsequent biocytin-filling and immunocytochemical labeling. Principal component analysis followed by k-means clustering predicted two putative subtypes of SOM+ interneurons, which we designated as group I and group II GIN. A key finding of our study is the fact that these electrophysiologically and morphologically distinct groups of SOM+ interneurons can be correlated with two neurochemical subtypes of SOM+ interneurons described recently in our laboratory. In particular, all SOM+ interneurons expressing calbindin but no calretinin could be classified as group I GIN, whereas all but one neuropeptide Y- and calretinin-positive interneurons were found in group II.http://europepmc.org/articles/PMC6042774?pdf=render
spellingShingle Therese Riedemann
Tobias Straub
Bernd Sutor
Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.
PLoS ONE
title Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.
title_full Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.
title_fullStr Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.
title_full_unstemmed Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.
title_short Two types of somatostatin-expressing GABAergic interneurons in the superficial layers of the mouse cingulate cortex.
title_sort two types of somatostatin expressing gabaergic interneurons in the superficial layers of the mouse cingulate cortex
url http://europepmc.org/articles/PMC6042774?pdf=render
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AT berndsutor twotypesofsomatostatinexpressinggabaergicinterneuronsinthesuperficiallayersofthemousecingulatecortex