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首页> 外文期刊>Asian Journal of Andrology >Percoll fractionation of adult mouse spermatogonia improves germ cell transplantation
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Percoll fractionation of adult mouse spermatogonia improves germ cell transplantation

机译:成年小鼠精原细胞的Percoll分级可改善生殖细胞移植

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Aim: To isolate and transplant germ cells from adult mouse testes for transplantation. Methods: In order to distinguish transplanted cells from endogenous cells of recipients, donor transgenic mice expressing green fluorescent protein (GFP) were used. Germ cells were collected from the donors at 10-12 weeks of age and spermatogonia were concentrated by percoll fractionation and transplanted into recipient seminiferous tubules that had been previously treated with busulfan at 5 weeks of age to remove the endogenous spermatogenic cells. Results: Twenty weeks after the transplantation, a wide spread GFP signal was observed in the recipient seminiferous tubules. The presence of spermatogenesis and spermatozoa was confirmed in sections of 12 out of 14 testes transplanted (86 %). However, when germ cells were transplanted without concentration the success rate was zero (0/9). Conclusion: Germ cells from adult mouse testes can be successfully transplanted into recipient seminiferous tubules if the cell population is rich in spermatogonia and the percoll fractionation is useful in obtaining such a cell population.
机译:目的:从成年小鼠睾丸中分离并移植生殖细胞进行移植。方法:为了区分受体的内源细胞和移植细胞,使用了表达绿色荧光蛋白(GFP)的供体转基因小鼠。在10-12周龄时从供体中收集生殖细胞,并通过percoll分级浓缩精原细胞,并将其移植到先前已在5周龄时用白消安处理过的受体生精小管中,以去除内源性生精细胞。结果:移植二十周后,在受体的生精小管中观察到了广泛传播的GFP信号。在移植的14个睾丸中有12个的切片中证实有精子发生和精子的存在(86%)。但是,当未浓缩地移植生殖细胞时,成功率为零(0/9)。结论:如果成年小鼠睾丸中的生殖细胞具有丰富的精原细胞,并且可以通过percoll分级分离获得这种细胞,则可以将其成功移植到受体的生精小管中。

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