Abstract
Myocardial ischaemia reperfusion injury (MIRI) is considered the primary cause of death in patients with cardiovascular diseases. Recently, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been found to be involved in the pathogenesis of MIRI. However, whether lncRNA ROR and miR-124-3p play roles in MIRI and the underlying mechanism remain undetermined. HCMs were exposed to hypoxic conditions for 2 h followed by re-oxygenation (H/R) treatment. Expression of miR-124-3p and lncRNA ROR in HCMs was measured by qRT-PCR. TRAF6 expression was evaluated by qRT-PCR and western blotting. ELISA and qRT-PCR were conducted to assess the production of TNF-α, IL-6, and IL-1β. The interaction between miR-124-3p and TRAF6, as well as between miR-124-3p and lncRNA ROR, was verified by dual-luciferase reporter assay. Cell apoptosis was detected by flow cytometry analysis. Our data revealed that miR-124-3p was significantly downregulated, while TRAF6 and lncRNA ROR were upregulated in both MIRI rat model and H/R treated HCMs. Overexpression of miR-124-3p reversed the H/R-induced cell apoptosis and upregulation of TNF-α, IL-6, and IL-1β. Mechanistically, miR-124-3p bound and negatively regulated TRAF6 expression in HCMs. Moreover, TRAF6 overexpression significantly blocked the effects of miR-124-3p mimics on cell apoptosis and inflammatory response of HCMs, which involved the NF-κB pathway. Further analysis showed that lncRNA ROR sponged and negatively regulated miR-124-3p in HCMs. Overexpression of IL-1β was demonstrated to promote H/R induced cell apoptosis in HCMs. In addition, overexpression of ROR further enhanced the H/R-induced inflammation and cell apoptosis through its action on miR-124-3p. The lncRNA ROR/miR-124-3p/TRAF6 axis regulated the H/R-induced cell apoptosis and inflammatory response of HCMs.
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07 April 2021
A Correction to this paper has been published: https://doi.org/10.1007/s10863-021-09881-9
Abbreviations
- MIRI:
-
Myocardial ischaemia reperfusion injury
- LncRNA:
-
Long non-coding RNAs
- miRNA:
-
Micro RNAs
- IRI:
-
Ischemia reperfusion injury
- HCM:
-
human cardiac myocytes
- TRAF6:
-
TNF receptor associated factor 6
- CHD:
-
Coronary heart disease
- ELISA:
-
Enzyme Linked Immunosorbent Assay
- qRT-PCR:
-
Quantitative real-time PCR
- WT:
-
Wild type
- MUT:
-
Mutant
- LAD:
-
Left anteriordescending coronaryartery
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The original version of this article unfortunately a mistake. The primer sequences of TRAF6 in “Quantitative real-time PCR (qRT-PCR) assay” of the Method section should be changed from TRAF6: forward 5’-CAG TGG TCG TAT CGT GCT TA-3′, reverse 5’-CCT TAT GGT TTC TTG GAG TC-3′ to TRAF6: forward 5’-TCG AAC CCT TGA GGA CAA AG -3’, reverse 5’- CGG GTT TGC CAG TGT AGA AT-3’. The original article has been corrected.
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Liang, YP., Liu, Q., Xu, GH. et al. The lncRNA ROR/miR-124-3p/TRAF6 axis regulated the ischaemia reperfusion injury-induced inflammatory response in human cardiac myocytes. J Bioenerg Biomembr 51, 381–392 (2019). https://doi.org/10.1007/s10863-019-09812-9
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DOI: https://doi.org/10.1007/s10863-019-09812-9