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| 1 | In vitro testicular organogenesis from human fetal gonads produces fertilization-competent spermatids显示文摘Unlike most organs that mature during the fetal period,the male reproductive system reaches maturity only at puberty with the commencement of spermatogenesis.Robust modelling of human testicular organogenesis in vitro would facilitate research into mechanisms of and factors affecting human spermatogenic failure and male fertility preservation in prepubertal tumor patients.Here,we report successful recapitulation of human testicular organogenesis in vitro from fetal gonadal ridge.Our model displayed the formation of mature seminiferous epithelium and self-renewing spermatogonia.Remarkably,in vitro-derived haploid spermatids have undergone meiotic recombination,and showed increased genetic diversity as indicated by genetic analysis.Moreover,these spermatids were able to fertilize oocytes and support subsequent blastocyst formation.The in vitro testicular organogenesis system described here will play an important role in elucidating the regulation of human testis development and maintaining male fertility in prepubertal cancer patients. | Yan Yuan Laihua Li Qing Cheng Feiyang Diao Qiao Zeng Xiaoyu Yang Yibo Wu Hao Zhang Mingqian Huang Junqing Chen Quan Zhou Yunfei Zhu Rong Hua Jianyu Tian Xin Wang Zuomin Zhou Jie Hao Jinjin Yu Dong Hua Jiayin Liu Xuejiang Guo Qi Zhou Jiahao Sha | 2020 | Cell Research2020，30，3： | 6 |
| 2 | 成年牛睾丸组织体外无血清培养研究显示文摘为研究促进精子发生的体外培养体系,通过无血清睾丸组织培养法,将成年牛睾丸组织块种植于培养板,观测不同时间睾丸细胞的迁出和形态变化。通过油红O染色鉴定具有分泌功能的支持细胞,通过碱性磷酸酶和免疫组化染色鉴定集落样生长的精原干细胞。结果发现该体系可获得生长良好的多种类型细胞,包括表达AP、Oct-4和GFRα1的精原干细胞及具有分泌功能的睾丸支持细胞,并可获得大量精子。说明,该无血清培养体系可作为一个重要的工具来研究生物学和化学因素对雄性生殖系统的影响,也为研究精子体外发生和移植提供了材料。 | 李吉霞 王轶敏 丁向彬 葛秀国 | 2013 | 中国畜牧兽医2013，40，6： | 1 |
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