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Published in: The Journal of Headache and Pain 1/2024

Open Access 01-12-2024 | Neuropathic Pain | Research

LncRNA Anxa10-203 enhances Mc1r mRNA stability to promote neuropathic pain by recruiting DHX30 in the trigeminal ganglion

Authors: YaJing Liu, Fei Liu, YiKe Li, YueLing Li, YuHeng Feng, JiaShuo Zhao, Cheng Zhou, ChunJie Li, JieFei Shen, YanYan Zhang

Published in: The Journal of Headache and Pain | Issue 1/2024

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Abstract

Background

Trigeminal nerve injury is one of the most serious complications in oral clinics, and the subsequent chronic orofacial pain is a consumptive disease. Increasing evidence demonstrates long non-coding RNAs (lncRNAs) play an important role in the pathological process of neuropathic pain. This study aims to explore the function and mechanism of LncRNA Anxa10-203 in the development of orofacial neuropathic pain.

Methods

A mouse model of orofacial neuropathic pain was established by chronic constriction injury of the infraorbital nerve (CCI-ION). The Von Frey test was applied to evaluate hypersensitivity of mice. RT-qPCR and/or Western Blot were performed to analyze the expression of Anxa10-203, DHX30, and MC1R. Cellular localization of target genes was verified by immunofluorescence and RNA fluorescence in situ hybridization. RNA pull-down and RNA immunoprecipitation were used to detect the interaction between the target molecules. Electrophysiology was employed to assess the intrinsic excitability of TG neurons (TGNs) in vitro.

Results

Anxa10-203 was upregulated in the TG of CCI-ION mice, and knockdown of Anxa10-203 relieved neuropathic pain. Structurally, Anxa10-203 was located in the cytoplasm of TGNs. Mechanistically, Mc1r expression was positively correlated with Anxa10-203 and was identified as the functional target of Anxa10-203. Besides, Anxa10-203 recruited RNA binding protein DHX30 and formed the Anxa10-203/DHX30 complex to enhance the stability of Mc1r mRNA, resulting in the upregulation of MC1R, which contributed to the enhancement of the intrinsic activity of TGNs in vitro and orofacial neuropathic pain in vivo.

Conclusions

LncRNA Anxa10-203 in the TG played an important role in orofacial neuropathic pain and mediated mechanical allodynia in CCI-ION mice by binding with DHX30 to upregulate MC1R expression.

Graphical Abstract

The up-regulated lncRNA Anxa10-203 in the trigeminal ganglion of CCI-ION mice interacts with DHX30 to contribute to the excitability of TG neurons and orofacial pain by enhancing Mc1r mRNA stability.
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Literature
Metadata
Title
LncRNA Anxa10-203 enhances Mc1r mRNA stability to promote neuropathic pain by recruiting DHX30 in the trigeminal ganglion
Authors
YaJing Liu
Fei Liu
YiKe Li
YueLing Li
YuHeng Feng
JiaShuo Zhao
Cheng Zhou
ChunJie Li
JieFei Shen
YanYan Zhang
Publication date
01-12-2024
Publisher
Springer Milan
Published in
The Journal of Headache and Pain / Issue 1/2024
Print ISSN: 1129-2369
Electronic ISSN: 1129-2377
DOI
https://doi.org/10.1186/s10194-024-01733-2

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