PMID- 38480908 OWN - NLM STAT- Publisher LR - 20240314 IS - 1740-634X (Electronic) IS - 0893-133X (Linking) DP - 2024 Mar 13 TI - Elevated dorsal medial prefrontal cortex to lateral habenula pathway activity mediates chronic stress-induced depressive and anxiety-like behaviors. LID - 10.1038/s41386-024-01840-3 [doi] AB - The medial prefrontal cortex (mPFC) sends projections to numerous brain regions and is believed to play a significant role in depression and anxiety. One of the key downstream targets of the mPFC, the lateral habenula (LHb), is essential for chronic stress (CS)-induced depressive and anxiety-like behaviors. Nevertheless, whether the mPFC-LHb pathway mediates the co-occurrence of depression and anxiety and the underlying mechanism remain incompletely understood. Here, using chemogenetics, we first determined that activation of LHb-projecting mPFC neurons is essential for the development of depressive and anxiety-like behaviors induced by CS. Subsequently, we identify the extent and distribution of LHb-projecting neurons originating from the mPFC subregion. Through circuit-specific in vivo fiber photometry, we found that Ca(2+) activity in dorsal mPFC (dmPFC) axon terminals within the LHb was increased during exposure to stressful and anxiety-related stimuli, highlighting the potential role of LHb-projecting dmPFC neurons in conveying stressful and anxiety-related information to the LHb. Finally, we observed that activation of both LHb-projecting dmPFC neurons and their postsynaptic counterparts in the LHb was necessary for CS-induced depressive and anxiety-like behaviors. Overall, this study provides multiple lines of evidence demonstrating that activation of the dmPFC-LHb pathway is a crucial neural circuitry for CS-induced depressive and anxiety-like behaviors. CI - (c) 2024. The Author(s), under exclusive licence to American College of Neuropsychopharmacology. FAU - Tong, Xiaohan AU - Tong X AUID- ORCID: 0009-0000-9756-941X AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Wu, Jijin AU - Wu J AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Sun, Ruizhe AU - Sun R AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Li, Han AU - Li H AD - Guangdong-Hongkong-Macau CNS Regeneration Institute, Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, Jinan University, Guangzhou, 510632, China. FAU - Hong, Yingxi AU - Hong Y AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Liu, Xianwei AU - Liu X AD - Guangdong-Hongkong-Macau CNS Regeneration Institute, Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, Jinan University, Guangzhou, 510632, China. FAU - Sun, Ying AU - Sun Y AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Chen, Chunxiao AU - Chen C AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Huang, Lu AU - Huang L AD - Guangdong-Hongkong-Macau CNS Regeneration Institute, Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, Jinan University, Guangzhou, 510632, China. huanglu@jnu.edu.cn. AD - Emergency Department, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China. huanglu@jnu.edu.cn. FAU - Lin, Song AU - Lin S AUID- ORCID: 0000-0003-0489-9239 AD - Physiology Department, School of Medicine, Jinan University, Guangzhou, 510632, China. linsong@jnu.edu.cn. AD - Guangdong-Hongkong-Macau CNS Regeneration Institute, Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong Key Laboratory of Non-human Primate Research, Jinan University, Guangzhou, 510632, China. linsong@jnu.edu.cn. AD - Guangdong-Hong Kong-Macau Great Bay Area Geroscience Joint Laboratory, School of Medicine, Jinan University, Guangzhou, 510632, China. linsong@jnu.edu.cn. AD - Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Ministry of Education, Jinan University, Guangzhou, 510632, China. linsong@jnu.edu.cn. LA - eng PT - Journal Article DEP - 20240313 PL - England TA - Neuropsychopharmacology JT - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology JID - 8904907 SB - IM EDAT- 2024/03/14 06:46 MHDA- 2024/03/14 06:46 CRDT- 2024/03/14 01:09 PHST- 2024/01/10 00:00 [received] PHST- 2024/02/22 00:00 [accepted] PHST- 2024/02/14 00:00 [revised] PHST- 2024/03/14 06:46 [medline] PHST- 2024/03/14 06:46 [pubmed] PHST- 2024/03/14 01:09 [entrez] AID - 10.1038/s41386-024-01840-3 [pii] AID - 10.1038/s41386-024-01840-3 [doi] PST - aheadofprint SO - Neuropsychopharmacology. 2024 Mar 13. doi: 10.1038/s41386-024-01840-3.