Abstract:
:Sirtuin1 (SIRT1), which is regulated by microRNA-34a (miR-34a), can modulate pathophysiology processes, including nonalcoholic fatty liver disease and intestinal ischemia/reperfusion injury. We previously reported that SIRT1, an NAD+-dependent deacetylase, plays a vital role in the development of neuropathic pain. However, the role of miR-34a/SIRT1 in complete Freund's adjuvant (CFA)-induced inflammatory pain remains unclear. In the present study, we examined miR-34a and SIRT1 in CFA mice. MiR-34a levels increased, while SIRT1 decreased in the spinal cord. Inhibiting miR-34a by intrathecal injection of miR-34a antagomir attenuated CFA-induced pain behavior. Moreover, miR-34a antagomir inhibited the CFA-induced SIRT1 decrease in the spinal cord. Furthermore, the analgesic effect of miR-34a antagomir was abrogated by the SIRT1 inhibitor EX-527. Our data provide support that the underlying mechanisms of miR-34a in promoting inflammatory pain may involve negative regulation of SIRT1.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Chen S,Gu Y,Dai Q,He Y,Wang Jdoi
10.1016/j.bbrc.2019.07.002subject
Has Abstractpub_date
2019-09-03 00:00:00pages
1196-1203issue
4eissn
0006-291Xissn
1090-2104pii
S0006-291X(19)31327-0journal_volume
516pub_type
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