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Hourigan ST, Solly EL, Nankivell VA, Ridiandries A, Weimann BM, Henriquez R, Tepper ER, Zhang JQJ, Tsatralis T, Clayton ZE, Vanags LZ, Robertson S, Nicholls SJ, Ng MKC, Bursill CA, Tan JTM. The regulation of miRNAs by reconstituted high-density lipoproteins in diabetes-impaired angiogenesis. Sci Rep 2018; 8:13596. [PMID: 30206364 PMCID: PMC6133943 DOI: 10.1038/s41598-018-32016-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 08/28/2018] [Indexed: 01/08/2023] Open
Abstract
Diabetic vascular complications are associated with impaired ischaemia-driven angiogenesis. We recently found that reconstituted high-density lipoproteins (rHDL) rescue diabetes-impaired angiogenesis. microRNAs (miRNAs) regulate angiogenesis and are transported within HDL to sites of injury/repair. The role of miRNAs in the rescue of diabetes-impaired angiogenesis by rHDL is unknown. Using a miRNA array, we found that rHDL inhibits hsa-miR-181c-5p expression in vitro and using a hsa-miR-181c-5p mimic and antimiR identify a novel anti-angiogenic role for miR-181c-5p. miRNA expression was tracked over time post-hindlimb ischaemic induction in diabetic mice. Early post-ischaemia when angiogenesis is important, rHDL suppressed hindlimb mmu-miR-181c-5p. mmu-miR-181c-5p was not detected in the plasma or within HDL, suggesting rHDL specifically targets mmu-miR-181c-5p at the ischaemic site. Three known angiogenic miRNAs (mmu-miR-223-3p, mmu-miR-27b-3p, mmu-miR-92a-3p) were elevated in the HDL fraction of diabetic rHDL-infused mice early post-ischaemia. This was accompanied by a decrease in plasma levels. Only mmu-miR-223-3p levels were elevated in the hindlimb 3 days post-ischaemia, indicating that rHDL regulates mmu-miR-223-3p in a time-dependent and site-specific manner. The early regulation of miRNAs, particularly miR-181c-5p, may underpin the rescue of diabetes-impaired angiogenesis by rHDL and has implications for the treatment of diabetes-related vascular complications.
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Affiliation(s)
- Samuel T Hourigan
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | - Emma L Solly
- Heart Health Theme, South Australian Health & Medical Research Institute, Adelaide, Australia
| | - Victoria A Nankivell
- Heart Health Theme, South Australian Health & Medical Research Institute, Adelaide, Australia
| | - Anisyah Ridiandries
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | - Benjamin M Weimann
- Heart Health Theme, South Australian Health & Medical Research Institute, Adelaide, Australia.,Adelaide Medical School, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, Australia
| | | | - Edward R Tepper
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | - Jennifer Q J Zhang
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | | | - Zoe E Clayton
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | - Laura Z Vanags
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | - Stacy Robertson
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia
| | - Stephen J Nicholls
- Heart Health Theme, South Australian Health & Medical Research Institute, Adelaide, Australia.,Adelaide Medical School, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - Martin K C Ng
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia.,Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Christina A Bursill
- The Heart Research Institute, Sydney, Australia.,The University of Sydney, Sydney Medical School, Sydney, Australia.,Heart Health Theme, South Australian Health & Medical Research Institute, Adelaide, Australia.,Adelaide Medical School, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - Joanne T M Tan
- The Heart Research Institute, Sydney, Australia. .,The University of Sydney, Sydney Medical School, Sydney, Australia. .,Heart Health Theme, South Australian Health & Medical Research Institute, Adelaide, Australia. .,Adelaide Medical School, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, Australia.
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