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学科主题: Multidisciplinary Sciences
题名: Establishment of a normal medakafish spermatogonial cell line capable of sperm production in vitro
作者: Hong, YH; Liu, TM; Zhao, HB; Xu, HY; Wang, WJ; Liu, R; Chen, TS; Deng, JR; Gui, JF
通讯作者: Hong, YH, Natl Univ Singapore, Dept Biol Sci, 10 Kent Ridge Crescent, Singapore 119260, Singapore
关键词: germ stem cells ; meiosis ; Oryzias latipes ; spermiogenesis ; testis
刊名: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
发表日期: 2004-05-25
卷: 101, 期:21, 页:8011-8016
收录类别: SCI
文章类型: Article
部门归属: Natl Univ Singapore, Dept Biol Sci, Singapore 119260, Singapore; Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
摘要: Spermatogonia are the male germ stem cells that continuously produce sperm for the next generation. Spermatogenesis is a complicated process that proceeds through mitotic phase of stem cell renewal and differentiation, meiotic phase, and postmeiotic phase of spermiogenesis. Full recapitulation of spermatogenesis in vitro has been impossible, as generation of normal spermatogonial stem cell lines without immortalization and production of motile sperm from these cells after long-term culture have not been achieved. Here we report the derivation of a normal spermatogonial cell line from a mature medakafish testis without immortalization. After 140 passages during 2 years of culture, this cell line retains stable but growth factor-dependent proliferation, a diploid karyotype, and the phenotype and gene expression pattern of spermatogonial stem cells. Furthermore, we show that this cell line can undergo meiosis and spermiogenesis to generate motile sperm. Therefore, the ability of continuous proliferation and sperm production in culture is an intrinsic property of medaka spermatogonial stem cells, and immortalization apparently is not necessary to derive male germ cell cultures. Our findings and cell line will offer a unique opportunity to study and recapitulate spermatogenesis in vitro and to develop approaches for germ-line transmission.
英文摘要: Spermatogonia are the male germ stem cells that continuously produce sperm for the next generation. Spermatogenesis is a complicated process that proceeds through mitotic phase of stem cell renewal and differentiation, meiotic phase, and postmeiotic phase of spermiogenesis. Full recapitulation of spermatogenesis in vitro has been impossible, as generation of normal spermatogonial stem cell lines without immortalization and production of motile sperm from these cells after long-term culture have not been achieved. Here we report the derivation of a normal spermatogonial cell line from a mature medakafish testis without immortalization. After 140 passages during 2 years of culture, this cell line retains stable but growth factor-dependent proliferation, a diploid karyotype, and the phenotype and gene expression pattern of spermatogonial stem cells. Furthermore, we show that this cell line can undergo meiosis and spermiogenesis to generate motile sperm. Therefore, the ability of continuous proliferation and sperm production in culture is an intrinsic property of medaka spermatogonial stem cells, and immortalization apparently is not necessary to derive male germ cell cultures. Our findings and cell line will offer a unique opportunity to study and recapitulate spermatogenesis in vitro and to develop approaches for germ-line transmission.
关键词[WOS]: EMBRYONIC STEM-CELLS ; LONG-TERM CULTURE ; GERM-CELLS ; ORYZIAS-LATIPES ; GENE-TRANSFER ; MOUSE ; DIFFERENTIATION ; EXPRESSION ; TRANSPLANTATION ; SPERMATOGENESIS
语种: 英语
WOS记录号: WOS:000221652000032
ISSN号: 0027-8424
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9478
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Natl Univ Singapore, Dept Biol Sci, Singapore 119260, Singapore
2.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
Hong, YH; Liu, TM; Zhao, HB; Xu, HY; Wang, WJ; Liu, R; Chen, TS; Deng, JR; Gui, JF.Establishment of a normal medakafish spermatogonial cell line capable of sperm production in vitro,PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2004,101(21):8011-8016
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