Evidence map›Paper›PMID 40631358›Full record

ArticleCNS neuroscience & therapeutics2025

Downregulation of Mfn2 Contributes to Chronic Postsurgical Pain via Inducing the Pyroptosis of GABAergic Neurons in the Spinal Cord.

Yingjie Hu, Xiao He, Hu Zang, Yuye Chen, Li Li, Tongtong Liu, Li Wan, Chang Zhu, Wenlong Yao

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Article in CNS neuroscience & therapeutics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

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0cells of the map it votes in
5citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Yingjie HuDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID 0009-0005-8732-4423
Xiao HeDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Hu ZangDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Yuye ChenDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID 0009-0005-6940-1456
Li LiDepartment of Physiology, Hubei University of Chinese Medicine, Wuhan, China.
Tongtong LiuDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID 0000-0002-6843-4572
Li WanDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Chang ZhuDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID 0009-0007-2771-5507
Wenlong YaoDepartment of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Funding

National Natural Science Foundation of China 82171228National Natural Science Foundation of China 82201387
6 · The paper itself

Abstract

backgroundChronic postoperative pain (CPSP) is a significant public health issue due to the complex pathophysiological mechanism. Existing evidence has pointed out that the loss of gamma-aminobutyric acid-ergic (GABAergic) neurons played a critical role in various neuropathic pain models. Previous studies also found that pyroptosis-mediated neuroinflammation was involved in neuropathological pain. However, it remains unclear what the relationship is between pyroptosis and the loss of spinal GABAergic neurons in CPSP. This study aimed to investigate the role and mechanism of GABAergic neuron pyroptosis in CPSP.

methodsWe used skin/muscle incision and retraction (SMIR) to establish the CPSP model in rats. Mechanical allodynia was assessed using the Von Frey test. Western blotting, quantitative real-time polymerase chain reaction (qRT-PCR), immunofluorescence, biochemical assay, and transmission electron microscope (TEM) were employed to investigate the role and mechanism of GABAergic neuron pyroptosis during CPSP.

resultsWe observed the pyroptosis of GABAergic neurons in the spinal cord following SMIR. Intrathecal administration of the GSDMD inhibitor decreased the pyroptosis of GABAergic neurons in the spinal cord and reversed SMIR-induced mechanical allodynia. In addition, we found that SMIR induced a significant decrease in the level of Mfn2 in the neurons, accompanied by mitochondrial dysfunction and reactive oxygen species (ROS) accumulation in SMIR rats. Intrathecal injection of the Mfn2 activator reduced mitochondrial dysfunction and ROS, alleviated the pyroptosis of GABAergic neurons in the spinal cord, which alleviated the SMIR-induced mechanical allodynia.

conclusionsOur study demonstrated that downregulation of Mfn2 leads to mitochondrial dysfunction and ROS accumulation, which promotes the pyroptosis of spinal GABAergic neurons and the development of chronic pain.

Indexed as

Chronic PainGABAergic NeuronsGTP PhosphohydrolasesMitochondrial ProteinsPostoperative PainPyroptosisSpinal CordAnimalsDown-RegulationHyperalgesiaMaleRatsRats, Sprague-DawleyGTP PhosphohydrolasesMfn2 protein, ratMitochondrial Proteinschronic postsurgical painGABAergic neuronMfn2mitochondrial dysfunctionpyroptosis

Identifiers

PMID40631358
PMCPMC12238769

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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 OpenQuestion graph.