透明質(zhì)酸水凝膠三維培養(yǎng)促進(jìn)人胚胎干細(xì)胞向紅系細(xì)胞誘導(dǎo)分化
發(fā)布時(shí)間:2019-07-10 14:30
【摘要】:目的探討采用透明質(zhì)酸材料的三維培養(yǎng)方法將人胚胎干細(xì)胞(h ESCs)來(lái)源造血干/祖細(xì)胞向紅系細(xì)胞誘導(dǎo)分化的效果。方法將hESCs與小鼠主動(dòng)脈-性腺-中腎基質(zhì)細(xì)胞(AGM-S3)共培養(yǎng)(37℃、5%CO_2)12 d的細(xì)胞(1.0×10~6)分別種植進(jìn)海藻酸鈉水凝膠、膠原蛋白水凝膠、透明質(zhì)酸水凝膠內(nèi),并以懸浮法培養(yǎng)h ESCs作對(duì)照。以流式細(xì)胞儀檢測(cè)細(xì)胞表面抗原表達(dá),比較不同材料建立的三維培養(yǎng)的優(yōu)劣,優(yōu)化紅系誘導(dǎo)分化的三維培養(yǎng)體系。結(jié)果海藻酸鈉組內(nèi)細(xì)胞培養(yǎng)10 d的GPA~+細(xì)胞為2.3%,GPA~+CD36+細(xì)胞僅為0.9%而懸浮培養(yǎng)分別為15.8%和6.1%。膠原蛋白組內(nèi)細(xì)胞培養(yǎng)10 d的GPA~+細(xì)胞為11.1%,GPA~+CD36+細(xì)胞為5.2%,而懸浮培養(yǎng)分別為35.7%和27.7%。透明質(zhì)酸組內(nèi)紅系細(xì)胞GPA~+細(xì)胞量和比率分別為2.06×105個(gè)和19.6%,而懸浮培養(yǎng)的紅系細(xì)胞GPA~+細(xì)胞量和比率分別為1.62×10~5個(gè)和15.7%,透明質(zhì)酸組是懸浮培養(yǎng)的1.27倍,其中懸浮培養(yǎng)GPA~+CD36-為9.7%,而透明質(zhì)酸水凝膠為GPA~+CD36-為13.1%。結(jié)論與懸浮培養(yǎng)相比,海藻酸鈉水凝膠和膠原蛋白水凝膠未表現(xiàn)出明顯的擴(kuò)增紅系細(xì)胞的效果。透明質(zhì)酸凝膠建立的三維培養(yǎng)方法利于紅系細(xì)胞生長(zhǎng),該培養(yǎng)方法誘導(dǎo)分化hESCs得到的紅系細(xì)胞成熟度提高。
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圖片說(shuō)明:hESCs/AGM-S3共培養(yǎng)向紅系細(xì)胞誘導(dǎo)分化過(guò)程中懸浮培養(yǎng)和三維培養(yǎng)模式
[Abstract]:Objective to investigate the differentiation of hematopoietic stem / progenitor cells derived from human embryonic stem cell (h ESCs) into erythroid cells by three-dimensional culture with hyaluronic acid. Methods hESCs was co-cultured with mouse aortic gonadal mesorenal stroma cells (AGM-S3) at 37 鈩,
本文編號(hào):2512660
文內(nèi)圖片:
圖片說(shuō)明:hESCs/AGM-S3共培養(yǎng)向紅系細(xì)胞誘導(dǎo)分化過(guò)程中懸浮培養(yǎng)和三維培養(yǎng)模式
[Abstract]:Objective to investigate the differentiation of hematopoietic stem / progenitor cells derived from human embryonic stem cell (h ESCs) into erythroid cells by three-dimensional culture with hyaluronic acid. Methods hESCs was co-cultured with mouse aortic gonadal mesorenal stroma cells (AGM-S3) at 37 鈩,
本文編號(hào):2512660
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