Evidence map›Paper›PMID 42621089›Full record

ArticleFrontiers in molecular neuroscience2026

Dynamic transcriptomic profiling of dorsal root ganglia reveals stage-specific mechanisms in diabetic neuropathic pain.

Qingping Zhang, Mingzhu Zhai, Jing Yang, Xiaoyan Qi, Pengxu Cang, Aiping Yuan, Shitao Zhang, Chen Liang, Zhou Qi, Shiwen Guo

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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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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Qingping ZhangDepartment of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Mingzhu ZhaiCenter for Medical Experiments (CME), Shenzhen University of Advanced Technology General Hospital, Shenzhen, China.
Jing YangDepartment of Endocrinology, Affiliated Nanshan Hospital of Shenzhen University (Shenzhen Nanshan People's Hospital), Shenzhen, China.
Xiaoyan QiDepartment of Endocrinology, Affiliated Nanshan Hospital of Shenzhen University (Shenzhen Nanshan People's Hospital), Shenzhen, China.
Pengxu CangDepartment of Neurosurgery, Affiliated Nanshan Hospital of Shenzhen University (Shenzhen Nanshan People's Hospital), Shenzhen, China.
Aiping YuanDepartment of Neurosurgery, Affiliated Nanshan Hospital of Shenzhen University (Shenzhen Nanshan People's Hospital), Shenzhen, China.
Shitao ZhangDepartment of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Chen LiangDepartment of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Zhou QiDepartment of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Shiwen GuoDepartment of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diabetic peripheral neuropathy (DPN) is the main clinical challenge faced by patients in the middle and advanced stages of diabetes. Due to the unclear cellular and molecular mechanisms, despite decades of in-depth research, its treatment methods are still limited. This study delineates the dynamic transcriptomic landscape of dorsal root ganglia (DRG) in streptozotocin (STZ)-induced diabetic male rats, integrating behavioral phenotyping and cross-model comparisons. We observed phenotypic heterogeneity, with only 60% of STZ-treated rats developing diabetic neuropathic pain (DNP group). In comparison, 37% remained pain-free (non-DNP group) despite comparable hyperglycemia and weight loss. RNA sequencing revealed stage-specific molecular signatures: early DNP (4 weeks post-STZ) involved PI3K-Akt/Ras signaling pathways, whereas late DNP (8 weeks) implicated several virus infection and neuroactive ligand-receptor pathways. Strikingly, 72% of differentially expressed genes (DEGs) at 8 weeks were unique to chronic DNP maintenance. Cross-model analysis demonstrated little overlap between DNP, bone cancer pain, and nerve injury models (<1% shared DEGs), with only Serpina3n universally upregulated. Functional annotations highlighted dysregulated extracellular matrix remodeling, immune receptor activity, and virus-related pathways unique to DNP progression. These findings reveal (1) intrinsic phenotypic variability in diabetic neuropathy progression, (2) temporally distinct pathogenic mechanisms governing DNP initiation versus persistence, and (3) a unique transcriptional fingerprint distinguishing DNP from other neuropathic pain etiologies. This work provides a roadmap for stage-specific therapeutic targeting and underscores the necessity of precision approaches in diabetic neuropathy management.

Indexed as

diabetic peripheral neuropathydorsal root ganglionKEGGRNA-sequencetranscriptome

Identifiers

PMID42621089
PMCPMC13486286

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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.