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Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse

The anterior portion of the bed nucleus of the stria terminalis (BNST) modulates fear and stress responses. The anterodorsal BNST (adBNST) can be anatomically subdivided further into the lateral and medial divisions. Although output projections of BNST subregions have been studied, the local and glo...

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Autores principales: Sun, Yanjun, Zweifel, Larry S., Holmes, Todd C., Xu, Xiangmin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9969273/
https://www.ncbi.nlm.nih.gov/pubmed/36861029
http://dx.doi.org/10.1016/j.ynstr.2023.100527
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author Sun, Yanjun
Zweifel, Larry S.
Holmes, Todd C.
Xu, Xiangmin
author_facet Sun, Yanjun
Zweifel, Larry S.
Holmes, Todd C.
Xu, Xiangmin
author_sort Sun, Yanjun
collection PubMed
description The anterior portion of the bed nucleus of the stria terminalis (BNST) modulates fear and stress responses. The anterodorsal BNST (adBNST) can be anatomically subdivided further into the lateral and medial divisions. Although output projections of BNST subregions have been studied, the local and global input connections to these subregions remain poorly understood. To further understand BNST-centered circuit operations, we have applied new viral-genetic tracing and functional circuit mapping to determine detailed synaptic circuit inputs to lateral and medial subregions of adBNST in the mouse. Monosynaptic canine adenovirus type 2 (CAV2) and rabies virus-based retrograde tracers were injected in the adBNST subregions. The amygdalar complex, hypothalamus and hippocampal formation account for the majority of overall inputs to adBNST. However, lateral versus medial adBNST subregions have distinct patterns of long-range cortical and limbic brain inputs. The lateral adBNST has more input connections from prefrontal (prelimbic, infralimbic, cingulate) and insular cortices, anterior thalamus and ectorhinal/perirhinal cortices. In contrast, the medial adBNST received biased inputs from the medial amygdala, lateral septum, hypothalamus nuclei and ventral subiculum. We confirmed long-range functional inputs from the amydalohippocampal area and basolateral amygdala to the adBNST using ChR2-assisted circuit mapping. Selected novel BNST inputs are also validated with the AAV axonal tracing data from the Allen Institute Mouse Brain Connectivity Atlas. Together, these results provide a comprehensive map of the differential afferent inputs to lateral and medial adBNST subregions, and offer new insight into the functional operations of BNST circuitry for stress and anxiety-related behaviors.
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spelling pubmed-99692732023-02-28 Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse Sun, Yanjun Zweifel, Larry S. Holmes, Todd C. Xu, Xiangmin Neurobiol Stress Original Research Article The anterior portion of the bed nucleus of the stria terminalis (BNST) modulates fear and stress responses. The anterodorsal BNST (adBNST) can be anatomically subdivided further into the lateral and medial divisions. Although output projections of BNST subregions have been studied, the local and global input connections to these subregions remain poorly understood. To further understand BNST-centered circuit operations, we have applied new viral-genetic tracing and functional circuit mapping to determine detailed synaptic circuit inputs to lateral and medial subregions of adBNST in the mouse. Monosynaptic canine adenovirus type 2 (CAV2) and rabies virus-based retrograde tracers were injected in the adBNST subregions. The amygdalar complex, hypothalamus and hippocampal formation account for the majority of overall inputs to adBNST. However, lateral versus medial adBNST subregions have distinct patterns of long-range cortical and limbic brain inputs. The lateral adBNST has more input connections from prefrontal (prelimbic, infralimbic, cingulate) and insular cortices, anterior thalamus and ectorhinal/perirhinal cortices. In contrast, the medial adBNST received biased inputs from the medial amygdala, lateral septum, hypothalamus nuclei and ventral subiculum. We confirmed long-range functional inputs from the amydalohippocampal area and basolateral amygdala to the adBNST using ChR2-assisted circuit mapping. Selected novel BNST inputs are also validated with the AAV axonal tracing data from the Allen Institute Mouse Brain Connectivity Atlas. Together, these results provide a comprehensive map of the differential afferent inputs to lateral and medial adBNST subregions, and offer new insight into the functional operations of BNST circuitry for stress and anxiety-related behaviors. Elsevier 2023-02-15 /pmc/articles/PMC9969273/ /pubmed/36861029 http://dx.doi.org/10.1016/j.ynstr.2023.100527 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Research Article
Sun, Yanjun
Zweifel, Larry S.
Holmes, Todd C.
Xu, Xiangmin
Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
title Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
title_full Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
title_fullStr Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
title_full_unstemmed Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
title_short Whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
title_sort whole-brain input mapping of the lateral versus medial anterodorsal bed nucleus of the stria terminalis in the mouse
topic Original Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9969273/
https://www.ncbi.nlm.nih.gov/pubmed/36861029
http://dx.doi.org/10.1016/j.ynstr.2023.100527
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