Evidence mapPaperPMID 42466321Full record

ArticleFrontiers in molecular neuroscience2026

Transcriptomic signatures of the insular cortex in a mouse model of neuropathic pain.

Yang Bai, Guo-Quan Yao, Cheng-Guo Jiang, Chong Zhang, Yu-Gang Diao, Si-Zhe Feng, Guo-Biao Liang, Xin-Tong Qiu, Wei Jiang

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Article in Frontiers in molecular neuroscience, 2026. 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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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Yang Bai *Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.
Guo-Quan Yao *Department of Anesthesiology, General Hospital of Northern Theater Command, Shenyang, China.
Cheng-Guo Jiang *Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.
Chong ZhangDepartment of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.
Yu-Gang DiaoDepartment of Anesthesiology, General Hospital of Northern Theater Command, Shenyang, China.
Si-Zhe FengDepartment of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.
Guo-Biao LiangDepartment of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.
Xin-Tong QiuDepartment of Anatomy, Histology and Embryology, Preclinical School of Medicine, Air Force Medical University, Xi'an, China.
Wei JiangDepartment of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Neuropathic pain (NP) remains poorly managed by current therapies. Although the insular cortex (IC) is critical for cortical pain processing, a comprehensive spatiotemporal molecular characterization of the IC in NP is lacking. Methods: We employed RNA sequencing of the anterior (aIC) and posterior (pIC) insular cortices at 2 and 4 weeks following spared nerve injury in mice. Integrative bioinformatics analyses-including differential expression, functional enrichment, weighted gene co-expression network analysis, and protein-protein interaction (PPI) network construction-were used to delineate the molecular landscape. Results: Widespread transcriptional dysregulation in the IC was observed, with the number of differentially expressed genes increasing over time. Functional analyses reaffirmed involvement of neuroinflammation and synaptic plasticity-related pathways and further identified dysregulation of mitochondrial pathways-mechanisms commonly implicated in neurodegenerative disorders. Subregion analysis revealed that the aIC exhibited broader and more persistent pathway alterations than the pIC, including programmed cell death (early phase), mitochondrial dysfunction/neurodegeneration (late phase), indicating a progressive stress response unique to the aIC. PPI network analysis identified stage-specific hub genes: early-phase interferon-stimulated genes predominated in both subregions; late-phase hub genes included circadian rhythm regulators, ER stress markers and inflammatory mediators. Conclusion: This study presents a detailed transcriptomic profile of the IC in NP, revealing region- and time-dependent remodeling. Our results confirm known mechanisms and uncover dysregulation reminiscent of neurodegenerative disorders-predominantly in the aIC, suggesting its heightened susceptibility to pain-induced pathology. These findings expand our understanding of IC-mediated pathophysiological processes in NP and may provide a framework for identifying novel therapeutic targets for chronic pain.

Indexed as

insular cortexneurodegenerative diseaseneuropathic painsynaptic plasticitytranscriptomics

Identifiers

PMID42466321
PMCPMC13372706

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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.