Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Characterization of Sea Urchin Gonad-derived Extracellular Vesicles and Study of Their Effects on Nerve Cells

성게 생식소 유래 세포외소포체 특성 분석 및 신경세포에 미치는 영향 연구

  • Byeong-Hoon Choi (Industry 4.0 Convergence Bionics Engineering, Pukyong National University) ;
  • Sung-Han Jo (Industry 4.0 Convergence Bionics Engineering, Pukyong National University) ;
  • Sang-Hyug Park (Industry 4.0 Convergence Bionics Engineering, Pukyong National University)
  • 최병훈 (국립부경대학교 4차산업융합바이오닉스공학과) ;
  • 조성한 (국립부경대학교 4차산업융합바이오닉스공학과) ;
  • 박상혁 (국립부경대학교 4차산업융합바이오닉스공학과)
  • Received : 2023.12.28
  • Accepted : 2024.01.24
  • Published : 2024.02.28
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Abstract

Extracellular vesicles (EVs) are nano-sized lipid bilayer vesicles released by cells. EVs act as messengers for cell-to-cell communication. Inside, it contains various substances that show biological activity, such as proteins, lipids, nucleic acids, and metabolites. The study of EVs extracted from terrestrial organisms and stem cells on inflammatory environments and tissue regeneration have been actively conducted. However, marine organisms-derived EVs are limited. Therefore, we have extracted EVs from sea urchins belonging to the Echinoderm group with their excellent regenerative ability. First, we extracted extracellular matrix (ECM) from sea urchin gonads treated with hypotonic buffer, followed by collagenase treatment, and filtration to collect ECM-bounded EVs. The size of sea urchin gonad-derived EVs (UGEVs) is about 20-100 nm and has a round shape. The protein content was higher after EVs burst than before, which is evidence that proteins are contained inside. In addition, proteins of various sizes are distributed inside. PKH-26 was combined with UGEVs, which means that UGEVs have a lipid membrane. PHK-26-labeled UGEVs were successfully uptaken by cells. UGEVs can be confirmed to have the same characteristics as traditional EVs. Finally, it was confirmed that Schwann cells were not toxic by increasing proliferation after treatment.

Keywords

Acknowledgement

본 연구는 국립부경대학교 자율창의학술연구비(2022년)의 지원을 받아 수행되었음.

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