高效精原干细胞移植受体模型(免疫正常大鼠)的准备

来源 :中国细胞生物学学会2015年全国学术大会 | 被引量 : 0次 | 上传用户:sxlijx
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  精原干细胞移植作为研究精原干细胞功能及睾丸发育的金标准,移植受体的准备尤为重要。在此,我们介绍一种在选择大鼠移植作为受体异种移植准备中简单、安全和高效的策略。通过腺嘌呤(300mg/kg体重)灌胃SD大鼠,经MACS富集并且经慢病毒感染表达EGFP的小鼠精原干细胞,通过睾丸睾丸网注射,将外源的小鼠精原干细胞移植到大鼠睾丸曲细精管中。两个月后,剥离大鼠的曲细精管可见外源精原干细胞的归巢及分化,细胞悬液在荧光显微镜下可见表达EGFP的不同阶段的生殖细胞;冰冻切片和免疫组化显示外源的小鼠精原于细胞可在移植受体内发生完整的精子发生。说明合适浓度的腺嘌呤处理可以作为异种移植提供受体准备,相比较白消安高致死率等其他副作用,该策略可以作为移植受体准备中白消安处理的替代方案而广泛应用于精原干细胞移植中。
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