We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Contribution of Piezo2 to endothelium-dependent pain.
- Authors
Ferrari, Luiz F.; Bogen, Oliver; Green, Paul; Levine, Jon D.
- Abstract
Background: We evaluated the role of a mechanically-gated ion channel, Piezo2, in mechanical stimulation-induced enhancement of hyperalgesia produced by the pronociceptive vasoactive mediator endothelin-1, an innocuous mechanical stimulus-induced enhancement of hyperalgesia that is vascular endothelial cell dependent. We also evaluated its role in a preclinical model of a vascular endothelial cell dependent painful peripheral neuropathy. Results: The local administration of oligodeoxynucleotides antisense to Piezo2 mRNA, at the site of nociceptive testing in the rat's hind paw, but not intrathecally at the central terminal of the nociceptor, prevented innocuous stimulus- induced enhancement of hyperalgesia produced by endothelin-1 (100 ng). The mechanical hyperalgesia induced by oxaliplatin (2 mg/kg. i.v.), which was inhibited by impairing endothelial cell function, was similarly attenuated by local injection of the Piezo2 antisense. Polymerase chain reaction analysis demonstrated for the first time the presence of Piezo2 mRNA in endothelial cells. Conclusions: These results support the hypothesis that Piezo2 is a mechano-transducer in the endothelial cell where it contributes to stimulus-dependent hyperalgesia, and a model of chemotherapy-induced painful peripheral neuropathy.
- Subjects
MESSENGER RNA; ENDOTHELIUM; ANALGESIA; ION channels; HYPERALGESIA treatment; ENDOTHELIAL cells; VASCULAR endothelial cells; TREATMENT of peripheral neuropathy
- Publication
Molecular Pain, 2015, Vol 11, p1
- ISSN
1744-8069
- Publication type
Article
- DOI
10.1186/s12990-015-0068-4