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<p>Extracellular vesicles (EVs) are not only involved in cell-to-cell communications but have other functions as “garbage bags”, as bringing nutrients to cells, and as inducing mineral during bone formation and ectopic calcification. These minuscule entities significantly contribute to the regulation of bodily functions. However, the clinical application of EVs faces challenges due to limited production yield and targeting efficiency. In our study, we propose a method for efficiently harvesting EVs utilizing simian virus 40 large T antigen (SV40LT) immortalized human placental chorionic mesenchymal stromal cells (CMSCs). We investigated immortalized placental chorionic mesenchymal stromal cells (imCMSCs), a stromal cell line that surpasses the growth limitations of primary passage cells while retaining phenotypic characteristics and differentiation potential. This development offers the prospect of a consistent, uniform source of EVs, which is essential for regenerative medicine. Our findings indicate that the immortalization process preserves the particle size, quantity and surface marker profiles of EVs, providing a possible approach to produce high-yield EVs suitable for disease diagnosis and treatment.</p>

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A study on the production of extracellular vesicles derived from novel immortalized human placental mesenchymal stromal cells

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年1月28日

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  • Yingying Tong,
  • Jie Sun,
  • Xin Jiang,
  • Xu Jia,
  • Huimin Xiao,
  • Hua Wang,
  • Guanghua Yang

摘要

Extracellular vesicles (EVs) are not only involved in cell-to-cell communications but have other functions as “garbage bags”, as bringing nutrients to cells, and as inducing mineral during bone formation and ectopic calcification. These minuscule entities significantly contribute to the regulation of bodily functions. However, the clinical application of EVs faces challenges due to limited production yield and targeting efficiency. In our study, we propose a method for efficiently harvesting EVs utilizing simian virus 40 large T antigen (SV40LT) immortalized human placental chorionic mesenchymal stromal cells (CMSCs). We investigated immortalized placental chorionic mesenchymal stromal cells (imCMSCs), a stromal cell line that surpasses the growth limitations of primary passage cells while retaining phenotypic characteristics and differentiation potential. This development offers the prospect of a consistent, uniform source of EVs, which is essential for regenerative medicine. Our findings indicate that the immortalization process preserves the particle size, quantity and surface marker profiles of EVs, providing a possible approach to produce high-yield EVs suitable for disease diagnosis and treatment.