» Articles » PMID: 27856613

Dorsal Horn Interneuron-derived Netrin-4 Contributes to Spinal Sensitization in Chronic Pain Via Unc5B

Overview
Journal J Exp Med
Date 2016 Nov 19
PMID 27856613
Citations 6
Authors
Affiliations
Soon will be listed here.
Abstract

Because of the incomplete understanding of the molecular mechanisms that underlie chronic pain, the currently available treatments for this type of pain remain inefficient. In this study, we show that Netrin-4, a member of the axon guidance molecule family, was expressed in dorsal horn inner lamina II excitatory interneurons in the rat spinal cord. A similar expression pattern for Netrin-4 was also observed in human spinal cord. Behavioral analysis revealed that tactile and heat hyperalgesia after peripheral nerve injury or inflammation were abolished in Netrin-4-mutant rats. Transient suppression of Netrin-4 or its receptor Unc5B after injury could also prevent allodynia. Conversely, intrathecal administration of Netrin-4 protein to naive rats enhanced excitatory synaptic transmission in the dorsal horn and induced allodynia, suggesting that Netrin-4 is involved in spinal sensitization. Furthermore, the Unc5B receptor and subsequent activation of the tyrosine phosphatase SHP2 mediated Netrin-4-induced pain signaling in the spinal cord. These results identify Netrin-4 as a novel protein regulating spinal sensitization leading to chronic pain. Our findings provide evidence for the function of Netrin in the adult nervous system, as well as a previously unknown function in inducing pain signals from dorsal horn interneurons.

Citing Articles

Netrin-4: Focus on Its Role in Axon Guidance, Tissue Stability, Angiogenesis and Tumors.

Dong F, Liu Y, Yan W, Meng Q, Song X, Cheng B Cell Mol Neurobiol. 2022; 43(5):1663-1683.

PMID: 36350538 PMC: 11412186. DOI: 10.1007/s10571-022-01279-4.


Neuroplasticity related to chronic pain and its modulation by microglia.

Hiraga S, Itokazu T, Nishibe M, Yamashita T Inflamm Regen. 2022; 42(1):15.

PMID: 35501933 PMC: 9063368. DOI: 10.1186/s41232-022-00199-6.


Increased expression of Netrin-4 is associated with allodynia in a trigeminal neuropathic pain model rats by infraorbital nerve injury.

Honjo Y, Fujita Y, Niwa H, Yamashita T PLoS One. 2021; 16(4):e0251013.

PMID: 33914819 PMC: 8084253. DOI: 10.1371/journal.pone.0251013.


Increased Expression of Fibronectin Leucine-Rich Transmembrane Protein 3 in the Dorsal Root Ganglion Induces Neuropathic Pain in Rats.

Yamada M, Fujita Y, Hayano Y, Hayakawa H, Baba K, Mochizuki H J Neurosci. 2019; 39(38):7615-7627.

PMID: 31346030 PMC: 6750942. DOI: 10.1523/JNEUROSCI.0295-19.2019.


Genome-wide DNA methylation profiling of human diabetic peripheral neuropathy in subjects with type 2 diabetes mellitus.

Guo K, Elzinga S, Eid S, Figueroa-Romero C, Hinder L, Pacut C Epigenetics. 2019; 14(8):766-779.

PMID: 31132961 PMC: 6615525. DOI: 10.1080/15592294.2019.1615352.


References
1.
Neel B, Gu H, Pao L . The 'Shp'ing news: SH2 domain-containing tyrosine phosphatases in cell signaling. Trends Biochem Sci. 2003; 28(6):284-93. DOI: 10.1016/S0968-0004(03)00091-4. View

2.
Lai Wing Sun K, Correia J, Kennedy T . Netrins: versatile extracellular cues with diverse functions. Development. 2011; 138(11):2153-69. DOI: 10.1242/dev.044529. View

3.
Hayano Y, Sasaki K, Ohmura N, Takemoto M, Maeda Y, Yamashita T . Netrin-4 regulates thalamocortical axon branching in an activity-dependent fashion. Proc Natl Acad Sci U S A. 2014; 111(42):15226-31. PMC: 4210296. DOI: 10.1073/pnas.1402095111. View

4.
Woolf C, Salter M . Neuronal plasticity: increasing the gain in pain. Science. 2000; 288(5472):1765-9. DOI: 10.1126/science.288.5472.1765. View

5.
Porreca F, Ossipov M, Gebhart G . Chronic pain and medullary descending facilitation. Trends Neurosci. 2002; 25(6):319-25. DOI: 10.1016/s0166-2236(02)02157-4. View