Bilateral Changes of Cannabinoid Receptor Type 2 Protein and mRNA in the Dorsal Root Ganglia of a Rat Neuropathic Pain Model

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Publikace nespadá pod Fakultu sportovních studií, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.
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HRADILOVÁ SVÍŽENSKÁ Ivana BRÁZDA Václav KLUSÁKOVÁ Ilona DUBOVÝ Petr

Rok publikování 2013
Druh Článek v odborném periodiku
Časopis / Zdroj JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www http://www.ncbi.nlm.nih.gov/pubmed/23657829
Doi http://dx.doi.org/10.1369/0022155413491269
Obor Neurologie, neurochirurgie, neurovědy
Klíčová slova unilateral nerve injury; remote neuroinflammation; satellite glial cells
Popis Cannabinoid receptor type 2 (CB2R) plays a critical role in nociception. In contrast to cannabinoid receptor type 1 ligands, CB2R agonists do not produce undesirable central nervous system effects and thus promise to treat neuropathic pain that is often resistant to medical therapy. In the study presented here, we evaluated the bilateral distribution of the CB2R protein and messenger RNA (mRNA) in rat dorsal root ganglia (DRG) after unilateral peripheral nerve injury using immunohistochemistry, western blot, and in situ hybridization analysis. Unilateral chronic constriction injury (CCI) of the sciatic nerve induced neuropathic pain behavior and bilateral elevation of both CB2R protein and mRNA in lumbar L4-L5 as well as cervical C7-C8 DRG when compared with naive animals. CB2R protein and mRNA were increased not only in DRG neurons but also in satellite glial cells. The fact that changes appear bilaterally and (albeit at a lower level) even in the remote cervical DRG can be related to propagation of neuroinflammation alongside the neuraxis and to the neuroprotective effects of CB2R.
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