Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications
Kelun Wu,1– 3 Chuan He,1– 3 Yue Wu,1– 3 Xiaojie Zhou,1– 3 Pan Liu,1– 3 Wei Tang,1,3 Mei Yu,1,2 Weidong Tian1– 3 1State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineeri...
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Dove Medical Press
2021
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small extracellular vesicles particle track visualization preservation controlled release aggregation gelatin methacryloyl hydrogel Medicine (General) R5-920 |
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small extracellular vesicles particle track visualization preservation controlled release aggregation gelatin methacryloyl hydrogel Medicine (General) R5-920 Wu K He C Wu Y Zhou X Liu P Tang W Yu M Tian W Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications |
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Kelun Wu,1– 3 Chuan He,1– 3 Yue Wu,1– 3 Xiaojie Zhou,1– 3 Pan Liu,1– 3 Wei Tang,1,3 Mei Yu,1,2 Weidong Tian1– 3 1State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China; 2Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China; 3Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of ChinaCorrespondence: Mei YuState Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of ChinaEmail yumei925@hotmail.comWei TangDepartment of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, People’s Republic of ChinaTel/Fax +86-28-85503499Email mydrtw@vip.sina.comPurpose: Small extracellular vesicles (sEV) play an irreplaceable role in cell–cell communication. However, sEV in solution aggregate with each other during preservation, leading to impairment of the structures, contents, and functions of sEV. Therefore, there is a need to develop an optimal preservation method that combines high recovery rate, low cost, convenience, and easy-transportation in one. In this study, a new preservation strategy different from the cryopreservation or lyophilization was developed by reducing sEV particles aggregation.Methods: The sEV were encapsulated in thermoresponsive gelatin methacryloyl (GelMA) hydrogels at 4°C to reduce particles aggregation during the reversible cross-linking process. The sEV movement was visualized in different mediums and particles’ number, size, structure and protein of 28 days preserved sEV were compared to fresh sEV. Human umbilical vein endothelial cells (HUVEC) and rat adipose-derived stromal stem cells (rASC) were isolated and cultured with fresh and preserved sEV to test the cellular response. A mice subcutaneous model was adopted to detect controlled release and angiogenesis ability of preserved sEV.Results: Through particles tracks visualization, GelMA hydrogels significantly decreased the sEV movement. After 28 days preservation in GelMA at 4°C, the particles number, size, structure and protein of sEV were similar to fresh sEV. In vitro, preserved sEV had the same ability to promote cell proliferation, migration and angiogenesis as fresh sEV. In vivo, preserved sEV-GelMA could artificially regulate the absorptivity of GelMA hydrogels and controlled released sEV for therapeutic application, and preserved sEV encapsulated in GelMA significantly promoted angiogenesis in mice.Conclusion: Our results demonstrated that sEV encapsulated in GelMA could be a novel strategy for long-term preservation of sEV for therapeutic application.Keywords: small extracellular vesicles, particle track visualization, preservation, controlled release, aggregation, gelatin methacryloyl hydrogel |
| format |
article |
| author |
Wu K He C Wu Y Zhou X Liu P Tang W Yu M Tian W |
| author_facet |
Wu K He C Wu Y Zhou X Liu P Tang W Yu M Tian W |
| author_sort |
Wu K |
| title |
Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications |
| title_short |
Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications |
| title_full |
Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications |
| title_fullStr |
Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications |
| title_full_unstemmed |
Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications |
| title_sort |
preservation of small extracellular vesicle in gelatin methacryloyl hydrogel through reduced particles aggregation for therapeutic applications |
| publisher |
Dove Medical Press |
| publishDate |
2021 |
| url |
https://doaj.org/article/e2b9d8972748421ab84ba1cfff32bcb3 |
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oai:doaj.org-article:e2b9d8972748421ab84ba1cfff32bcb32021-12-02T18:39:51ZPreservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications1178-2013https://doaj.org/article/e2b9d8972748421ab84ba1cfff32bcb32021-11-01T00:00:00Zhttps://www.dovepress.com/preservation-of-small-extracellular-vesicle-in-gelatin-methacryloyl-hy-peer-reviewed-fulltext-article-IJNhttps://doaj.org/toc/1178-2013Kelun Wu,1– 3 Chuan He,1– 3 Yue Wu,1– 3 Xiaojie Zhou,1– 3 Pan Liu,1– 3 Wei Tang,1,3 Mei Yu,1,2 Weidong Tian1– 3 1State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China; 2Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China; 3Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of ChinaCorrespondence: Mei YuState Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of ChinaEmail yumei925@hotmail.comWei TangDepartment of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, People’s Republic of ChinaTel/Fax +86-28-85503499Email mydrtw@vip.sina.comPurpose: Small extracellular vesicles (sEV) play an irreplaceable role in cell–cell communication. However, sEV in solution aggregate with each other during preservation, leading to impairment of the structures, contents, and functions of sEV. Therefore, there is a need to develop an optimal preservation method that combines high recovery rate, low cost, convenience, and easy-transportation in one. In this study, a new preservation strategy different from the cryopreservation or lyophilization was developed by reducing sEV particles aggregation.Methods: The sEV were encapsulated in thermoresponsive gelatin methacryloyl (GelMA) hydrogels at 4°C to reduce particles aggregation during the reversible cross-linking process. The sEV movement was visualized in different mediums and particles’ number, size, structure and protein of 28 days preserved sEV were compared to fresh sEV. Human umbilical vein endothelial cells (HUVEC) and rat adipose-derived stromal stem cells (rASC) were isolated and cultured with fresh and preserved sEV to test the cellular response. A mice subcutaneous model was adopted to detect controlled release and angiogenesis ability of preserved sEV.Results: Through particles tracks visualization, GelMA hydrogels significantly decreased the sEV movement. After 28 days preservation in GelMA at 4°C, the particles number, size, structure and protein of sEV were similar to fresh sEV. In vitro, preserved sEV had the same ability to promote cell proliferation, migration and angiogenesis as fresh sEV. In vivo, preserved sEV-GelMA could artificially regulate the absorptivity of GelMA hydrogels and controlled released sEV for therapeutic application, and preserved sEV encapsulated in GelMA significantly promoted angiogenesis in mice.Conclusion: Our results demonstrated that sEV encapsulated in GelMA could be a novel strategy for long-term preservation of sEV for therapeutic application.Keywords: small extracellular vesicles, particle track visualization, preservation, controlled release, aggregation, gelatin methacryloyl hydrogelWu KHe CWu YZhou XLiu PTang WYu MTian WDove Medical Pressarticlesmall extracellular vesiclesparticle track visualizationpreservationcontrolled releaseaggregationgelatin methacryloyl hydrogelMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 16, Pp 7831-7846 (2021) |