Evidence mapPaperPMID 39715728Full record

ArticleNeuropsychopharmacology reports2025

Association Between Stress-Induced Weight Loss and Autophagy-Related Gene Expression in the Hippocampus and Midbrain of Depression Model Mice.

Hiroaki Mori, Yuta Yoshino, Mariko Okano, Yu Funahashi, Hiroshi Kumon, Shinichiro Ochi, Jun-Ichi Iga, Shu-Ichi Ueno

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Article in Neuropsychopharmacology reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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8 authors.

Hiroaki MoriDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.
Yuta YoshinoDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.
Mariko OkanoDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.
Yu FunahashiDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.
Hiroshi KumonDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.
Shinichiro OchiDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.
Jun-Ichi IgaDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.ORCID https://orcid.org/0000-0003-4409-3096
Shu-Ichi UenoDepartment of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Toon, Japan.

Funding

Health and Labour Science ResearchJapan Society for the Promotion of Science 20K07971Japan Society for the Promotion of Science 22K07562Japan Society for the Promotion of Science 22K07597Japan Society for the Promotion of Science 22K15752Japan Society for the Promotion of Science 22K15765Japan Society for the Promotion of Science 23K07016
6 · The paper itself

Abstract

aimRecent studies have implicated autophagy in both weight regulation and depression. This study aimed to investigate the relationship between stress-induced weight loss and autophagy-related gene expression in a mouse model of depression.

methodMale C57BL/6 mice were subjected to a chronic immobilization stress (CIS) protocol for 14 days to induce depressive-like behavior. Body weight was measured before and after the CIS, and depressive-like behavior was assessed using the tail suspension test (TST). The expression levels of autophagy-related genes (Atg5, Atg7, Atg12, Becn1, Mmp9, Fkbp5, and Map1lc3b) in the hippocampus and midbrain were evaluated using reverse transcription-quantitative PCR (RT-qPCR). Serum cortisol levels were also measured.

resultsThe CIS resulted in significant weight loss and increased immobility time in the TST, indicating depressive-like behavior. Serum cortisol levels were not different between CIS-depression model and control mice. In the hippocampus, the expression levels of Fkbp5, Mmp9, and Map1lc3b were significantly higher in CIS-depression model mice than in control mice. In the midbrain, the expression levels of Fkbp5 and Mmp9 were significantly higher in CIS-depression model mice than in control mice. Increased autophagy-related gene expressions in CIS-depression model mice were consistent with the previous studies in the postmortem brains of patients with depression. A significant negative correlation was also found between Fkbp5 mRNA expression in the hippocampus and the weight change ratio before and after the CIS.

conclusionThe findings suggest that enhanced autophagy may be related to the pathology of depression and that Fkbp5, an autophagy regulator, mediates stress-induced weight loss.

Indexed as

AutophagyDepressionDisease Models, AnimalHippocampusMesencephalonMice, Inbred C57BLStress, PsychologicalTacrolimus Binding ProteinsWeight LossAnimalsGene ExpressionHydrocortisoneMaleMatrix Metalloproteinase 9MiceRestraint, PhysicalHydrocortisoneMatrix Metalloproteinase 9Tacrolimus Binding Protein 5Tacrolimus Binding Proteinsautophagychronic immobilization stress (CIS)depressionFkbp5stress‐induced weight loss

Identifiers

PMID39715728
PMCPMC11666342

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.