mesenchymal cell

例句：

1. 1. The researchers isolated mesenchymal stem cells from the patient's bone marrow.
   研究人员从患者的骨髓中分离出了间充质干细胞。
2. 2. These cells have been shown to play a crucial role in tissue repair and regeneration.
   这些细胞已被证明在组织修复和再生中起着关键作用。
3. 3. The discovery of mesenchymal stem cells has revolutionized the field of tissue engineering.
   间充质干细胞的发现已经彻底改变了组织工程领域。