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Shirasu T, Yodsanit N, Li J, Huang Y, Xie X, Tang R, Wang Q, Zhang M, Urabe G, Webb A, Wang Y, Wang X, Xie R, Wang B, Kent KC, Gong S, Guo LW. Neointima abating and endothelium preserving - An adventitia-localized nanoformulation to inhibit the epigenetic writer DOT1L. Biomaterials 2023; 301:122245. [PMID: 37467597 PMCID: PMC10530408 DOI: 10.1016/j.biomaterials.2023.122245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 06/05/2023] [Accepted: 07/12/2023] [Indexed: 07/21/2023]
Abstract
Open vascular reconstructions such as bypass are common treatments for cardiovascular disease. Unfortunately, neointimal hyperplasia (IH) follows, leading to treatment failure for which there is no approved therapy. Here we combined the strengths of tailoring nanoplatforms for open vascular reconstructions and targeting new epigenetic mechanisms. We produced adhesive nanoparticles (ahNP) that could be pen-brushed and immobilized on the adventitia to sustainably release pinometostat, an inhibitor drug selective to the epigenetic writer DOT1L that catalyzes histone-3 lysine-79 dimethylation (H3K79me2). This treatment not only reduced IH by 76.8% in injured arteries mimicking open reconstructions in obese Zucker rats with human-like diseases but also avoided the shortcoming of endothelial impairment in IH management. In mechanistic studies, chromatin immunoprecipitation (ChIP) sequencing revealed co-enrichment of the histone mark H3K27ac(acetyl) and its reader BRD4 at the gene of aurora kinase B (AURKB), where H3K79me2 was also enriched as indicated by ChIP-qPCR. Accordingly, DOT1L co-immunoprecipitated with H3K27ac. Furthermore, the known IH driver BRD4 governed the expression of DOT1L which controlled AURKB's protein level, revealing a BRD4- > DOT1L- > AURKB axis. Consistently, AURKB-selective inhibition reduced IH. Thus, this study presents a prototype nanoformulation suited for open vascular reconstructions, and the new insights into chromatin modulators may aid future translational advances.
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Affiliation(s)
- Takuro Shirasu
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Nisakorn Yodsanit
- Department of Biomedical Engineering and Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA; Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Jing Li
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Yitao Huang
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA; The Biomedical Sciences Graduate Program (BIMS), School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Xiujie Xie
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Runze Tang
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Qingwei Wang
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Mengxue Zhang
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Go Urabe
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Amy Webb
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Yuyuan Wang
- Department of Biomedical Engineering and Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA; Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Xiuxiu Wang
- Department of Biomedical Engineering and Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA; Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Ruosen Xie
- Department of Biomedical Engineering and Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA; Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Bowen Wang
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - K Craig Kent
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA.
| | - Shaoqin Gong
- Department of Biomedical Engineering and Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA; Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA.
| | - Lian-Wang Guo
- Division of Surgical Sciences, Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA; Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, 22908, USA; Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, 22908, USA.
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