VGF: a biomarker and potential target for the treatment of neuropathic pain?

被引:14
作者
Soliman, Nadia [1 ]
Okuse, Kenji [2 ]
Rice, Andrew S. C. [1 ]
机构
[1] Imperial Coll London, Dept Surg & Canc, Pain Res, London, England
[2] Imperial Coll London, Dept Life Sci, London, England
基金
英国生物技术与生命科学研究理事会;
关键词
VGF; Neuropathic pain; Neuropeptide; Sensory neurons; Macrophages; Microglia; TLQP-21; C3aR1; gC1qR; ROOT GANGLION NEURONS; GENE-EXPRESSION; NEUROTROPHIC FACTOR; SUBSTANCE-P; SPINAL-CORD; PEPTIDE TLQP-21; PROTEIN-KINASE; MESSENGER-RNA; PERIPHERAL-NERVE; RECEPTOR C3AR1;
D O I
10.1097/PR9.0000000000000786
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Neuropathic pain (NP) remains an area of considerable unmet medical need. A persistent challenge in the management of NP is to target the specific mechanisms leading to a change from normal to abnormal sensory perception while ensuring that the defensive pain perception remains intact. Targeting VGF-derived neuropeptides may offer this opportunity. VGF was first identified in 1985 and is highly expressed after nerve injury and inflammation in neurons of both the peripheral and central nervous system. Subsequent studies implicate the vgf gene and its products in pain pathways. This narrative review was supported by a systematic search to identify, select, and critically appraise all relevant research investigating the role of VGF-derived neuropeptides in pain pathways. It predominantly focuses on in vivo investigations of the role of VGF in the initiation and maintenance of NP. VGF expression levels are very low under normal physiological conditions and nerve injury results in rapid and robust upregulation, increasing mechanical and thermal hypersensitivity. The identification of the 2 complement receptors with which VGF neuropeptides interact suggests a novel interplay of neuronal and immune signalling mediators. The understanding of the molecular mechanisms and signalling events by which VGF-derived active neuropeptides exert their physiological actions is in its infancy. Future work should aim to improve understanding of the downstream consequences of VGF neuropeptides thereby providing novel insights into pain mechanisms potentially leading to the identification of novel therapeutic targets.
引用
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页数:14
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