Abstract:
:Recent reports show that the nuclear factor-κB (NF-κB) can control numerous genes encoding inflammatory and nociceptive mediators and play an important role in the development of central pain sensitization. The aim of the present study is to assess the role of NF-κB signal pathway and its downstream pro-inflammatory cytokines in the modulation of neuropathic pain, by using small interfering RNAs (siRNAs) technique, which has been shown to result in potent, long-lasting post-transcriptional silencing of specific genes. We developed a highly efficient method of lentivirus-mediated delivery of short-hairpin RNA (shRNA) targeting NF-κBp65 for gene silencing. This method successfully transduced LV-shNF-κBp65 into cultured spinal cord neurons in vitro and spinal cord cells in vivo, inhibited the expression of NF-κBp65 and pro-inflammatory factors (TNF-α, IL-1β and IL-6) and alleviated mechanical allodynia and thermal hyperalgesia for more than 4weeks in chronic constriction injury (CCI) model of rats. Taken together, our results suggest that siRNA against NF-κBp65 is a potential strategy for analgesia. Furthermore, the lentiviral vector derived shRNA approach shows a great promise for the management of neuropathic pain and the study of functional NF-κBp65 gene expression.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Sun T,Luo J,Jia M,Li H,Li K,Fu Zdoi
10.1016/j.ejphar.2012.02.017subject
Has Abstractpub_date
2012-05-05 00:00:00pages
79-85issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(12)00153-7journal_volume
682pub_type
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