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Li JL, Kwan KJS, Lin XG, Wang J, Chen B, Lu YJ, Wang B, Xie SS, Zhou J, Yu B, Deng Y, Jiang S, Tang JD. The Buerger's rabbit model: a closer step to unravelling thromboangiitis obliterans? Thromb J 2024; 22:69. [PMID: 39075498 PMCID: PMC11285203 DOI: 10.1186/s12959-024-00638-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 07/17/2024] [Indexed: 07/31/2024] Open
Abstract
OBJECTIVE Thromboangiitis obliterans (TAO) remains clinical challenging due to its rarity and underwhelming management outcomes. This study aimed to describe a novel TAO rabbit model that demonstrates a closer resemblance to TAO. METHODS Thirty-six New Zealand rabbits underwent the surgical implantation of calibrated gelatin sponge particles (CGSPs) into their right femoral artery. The CGSPs were soaked in different solutions to simulate different types of thrombi: normal (NT; normal saline); inflammatory TAO thrombus (TAO; dimethylsulfoxide [DMSO]), and DMSO with methotrexate (MTX). All groups underwent clinical assessment, digital subtraction angiography (DSA) and histopathological analysis at time points day 0 (immediate), week 1 (acute), week 2 (subacute), and week 4 (chronic). RESULTS The TAO rabbit presented with signs of ischemia of the right digit at week 4. On DSA, the TAO rabbits exhibited formation of corkscrew collaterals starting week 1. On H&E staining, gradual CGSP degradation was observed along with increased red blood cell aggregation and inflammatory cells migration in week 1. On week 2, disorganization of the tunica media layer and vascular smooth muscle cell (VSMC) proliferation was observed. In the TAO rabbit, migrated VSMCs, inflammatory cells, and extracellular matrix with collagen-like substances gradually occluded the lumen. On week 4, the arterial lumen of the TAO rabbit was filled with relatively-organized VSMC and endothelial cell clusters with less inflammatory cells. Neorevascularization was found in the MTX-treated group. CONCLUSION The novel TAO rabbit model shows a closer resemblance to human TAO clinically, radiographically, and histopathologically. Histological analysis of the IT progression in the TAO model suggests that it is of VSMC origin.
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Affiliation(s)
- Jia-Long Li
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Kristine J S Kwan
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Xue-Guang Lin
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Jie Wang
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Bo Chen
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Yi-Jie Lu
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Bo Wang
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Shi-Shuai Xie
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Jiong Zhou
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Bo Yu
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China
| | - Ying Deng
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China.
| | - Shuai Jiang
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China.
| | - Jing-Dong Tang
- Department of Vascular Surgery, Fudan University Pudong Medical Center, Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai, 201399, China.
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Kmiotek-Wasylewska K, Łabędź-Masłowska A, Bobis-Wozowicz S, Karnas E, Noga S, Sekuła-Stryjewska M, Woźnicka O, Madeja Z, Dawn B, Zuba-Surma EK. Induced pluripotent stem cell-derived extracellular vesicles enriched with miR-126 induce proangiogenic properties and promote repair of ischemic tissue. FASEB J 2024; 38:e23415. [PMID: 38243682 DOI: 10.1096/fj.202301836r] [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: 09/08/2023] [Revised: 12/15/2023] [Accepted: 12/27/2023] [Indexed: 01/21/2024]
Abstract
Emerging evidence suggests that stem cell-derived extracellular vesicles (EVs) may induce pro-regenerative effects in ischemic tissues by delivering bioactive molecules, including microRNAs. Recent studies have also shown pro-regenerative benefits of EVs derived from induced pluripotent stem (iPS) cells. However, the underlying mechanisms of EV benefits and the role of their transferred regulatory molecules remain incompletely understood. Accordingly, we investigated the effects of human iPS-derived EVs (iPS-EVs) enriched in proangiogenic miR-126 (iPS-miR-126-EVs) on functional properties of human endothelial cells (ECs) in vitro. We also examined the outcomes following EV injection in a murine model of limb ischemia in vivo. EVs were isolated from conditioned media from cultures of unmodified and genetically modified human iPS cells overexpressing miR-126. The iPS-miR-126-EVs were enriched in miR-126 when compared with control iPS-EVs and effectively transferred miR-126 along with other miRNAs to recipient ECs improving their functional properties essential for ischemic tissue repair, including proliferation, metabolic activity, cell survival, migration, and angiogenic potential. Injection of iPS-miR-126-EVs in vivo in a murine model of acute limb ischemia promoted angiogenesis, increased perfusion, and enhanced functional recovery. These observations corresponded with elevated expression of genes for several proangiogenic factors in ischemic tissues following iPS-miR-126-EV transplantation. These results indicate that innate pro-regenerative properties of iPS-EVs may be further enhanced by altering their molecular composition via controlled genetic modifications. Such iPS-EVs overexpressing selected microRNAs, including miR-126, may represent a novel acellular tool for therapy of ischemic tissues in vivo.
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Affiliation(s)
- Katarzyna Kmiotek-Wasylewska
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
| | - Anna Łabędź-Masłowska
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
| | - Sylwia Bobis-Wozowicz
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
| | - Elżbieta Karnas
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
| | - Sylwia Noga
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
- Malopolska Centre of Biotechnology, Laboratory of Stem Cell Biotechnology, Jagiellonian University, Kraków, Poland
| | - Małgorzata Sekuła-Stryjewska
- Malopolska Centre of Biotechnology, Laboratory of Stem Cell Biotechnology, Jagiellonian University, Kraków, Poland
| | - Olga Woźnicka
- Faculty of Biology, Institute of Zoology and Biomedical Research, Department of Cell Biology and Imaging, Jagiellonian University, Kraków, Poland
| | - Zbigniew Madeja
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
| | - Buddhadeb Dawn
- Department of Internal Medicine, Kirk Kerkorian School of Medicine, University of Nevada, Las Vegas, Las Vegas, Nevada, USA
| | - Ewa K Zuba-Surma
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Kraków, Poland
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