龟板脂肪酸调控鼠骨髓间质干细胞增殖作用

Effect of Fatty Acids from Plastrum Testudinis on Proliferation of Rat Bone Mesenchymal Stem Cell

为了解龟板浸膏中对鼠骨髓间质干细胞体外增殖起促进作用的化学成分,用石油醚提取促进鼠骨髓间充质干细胞增殖的龟板有效部位,用MTT比色法及流式细胞仪研究了提取物调控鼠骨髓间充质干细胞活性,采用GC-MS技术研究了石油醚提取物的化学成分。初步结果表明,石油醚提取物能明显促进干细胞增殖,其主要成分是脂肪酸、甾醇和甾酮,且十八烷酸、十六烷酸和甾酮能起调控鼠骨髓间充质干细胞活性。龟板浸膏中,脂肪酸起调控鼠骨髓间充质干细胞增殖作用,这为龟板浸膏促进鼠骨髓间充质干细胞增殖又不引起干细胞过度生长的分子机制提供实验依据,也为中医药调控干细胞的研究提供重要的参考。

To investigate the components in Plastrum Testudinis which have effects on the proliferation of rat bone marrow mesenchymal stem cells（ bMMSCs）, the active parts of plastrum testudinis which can promote proliferation of rat mesenchymal stem cells were extracted by petroleum aether. The activities of inducing the proliferation of bMMSCs were studied by MTr assay and flow cytometry. The chemical components of extraction were analyzed by GC-MS. The results showed that the petroleum aether extraction can obviously promote the proliferation of the stem cells. The main components are long-chain fatty acids, cholesterols and cholest-4-en-3-one, and palmitic acid, stearic acid and cholest-4-en-3-one have effects on proliferation of bMMSCs. In plastrum testudinis, fatty acids can promote the proliferation of bMMSCs but not increase overly. This provide the experiment basis, and offer important reference for Traditional Chinese Medicine that researches stem cells.