Footshock-Induced Activation of the Claustrum-Entorhinal Cortical Pathway in Freely Moving Mice-Reference-Cited by-同舟云学术

Footshock-Induced Activation of the Claustrum-Entorhinal Cortical Pathway in Freely Moving Mice

Published:2022-10-31 Issue: Volume: Page:695-701
ISSN:1802-9973
Container-title:Physiological Research
language:en
Short-container-title:Physiol Res

Author:

HUANG W¹,QIN J¹,ZHANG C²,QIN H³,XIE P¹

Affiliation:

1. Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China, NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China

2. Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing, China

3. Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, China

Abstract

Footshock is frequently used as an unconditioned stimulus in fear conditioning behavior studies. The medial entorhinal cortex (MEC) contributes to fear learning and receives neuronal inputs from the claustrum. However, whether footshocks can induce a neuronal response in claustrum-MEC (CLA-MEC) projection remains unknown. Here, we combined fiber-based Ca2+ recordings with a retrograde AAV labeling method to investigate neuronal responses of MEC-projecting claustral neurons to footshock stimulation in freely moving mice. We achieved successful Ca2+ recordings in both anesthetized and freely exploring mice. We found that footshock stimulation reliably induced neuronal responses to MEC-projecting claustral neurons. Therefore, the footshock-induced response detected in the CLA-MEC projection suggests its potential role in fear processing.

Publisher

Institute of Physiology of the Czech Academy of Sciences

Subject

General Medicine,Physiology

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