Production of zebrafish offspring from cultured female germline stem cells

Zebrafish female germline stem cell (FGSC) cultures were generated from a transgenic line of fish that expresses Neo and DsRed under the control of the germ cell specific promoter, ziwi [Tg(ziwi:neo);Tg(ziwi:DsRed)]. Homogeneous FGSC cultures were established by G418 selection and continued to expre...

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Bibliographic Details
Published in:PloS one 2013-05, Vol.8 (5), p.e62660-e62660
Main Authors: Wong, Ten-Tsao, Tesfamichael, Abraham, Collodi, Paul
Format: Article
Language:English
Subjects:
Adult Stem Cells - physiology
Adult Stem Cells - transplantation
Animal genetic engineering
Animal genetics
Animals
Animals, Genetically Modified
Biology
Cell culture
Cell differentiation
Cell Proliferation
Cell survival
Cells, Cultured
Cloning, Molecular
Coculture Techniques
Danio rerio
Embryos
Feeder Cells
Female
Fibroblast growth factor 2
Fibroblast Growth Factor 2 - metabolism
Fibroblast growth factors
Fish
Gametes
Gene transfer
Genomes
Genomics
Glial cell line-derived neurotrophic factor
Glial Cell Line-Derived Neurotrophic Factor - metabolism
Leukemia
Leukemia inhibitory factor
Leukemia Inhibitory Factor - metabolism
Male
Neuronal-glial interactions
Offspring
Ovaries
Progeny
Rodents
Spermatozoa - metabolism
Stem cell transplantation
Stem cells
Transgenic fish
Transplantation
Zebrafish
Zebrafish - genetics
Zebrafish Proteins - metabolism
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Summary:Zebrafish female germline stem cell (FGSC) cultures were generated from a transgenic line of fish that expresses Neo and DsRed under the control of the germ cell specific promoter, ziwi [Tg(ziwi:neo);Tg(ziwi:DsRed)]. Homogeneous FGSC cultures were established by G418 selection and continued to express ziwi for more than 6 weeks along with the germ cell markers nanos3, dnd, dazl and vasa. A key component of the cell culture system was the use of a feeder cell line that was initiated from ovaries of a transgenic line of fish [Tg(gsdf:neo)] that expresses Neo controlled by the zebrafish gonadal soma derived factor (gsdf) promoter. The feeder cell line was selected in G418 and engineered to express zebrafish leukemia inhibitory factor (Lif), basic fibroblast growth factor (Fgf2) and glial-cell-line derived neurotrophic factor (Gdnf). These factors were shown to significantly enhance FGSC growth, survival and germline competency in culture. Results from cell transplantation experiments revealed that the cultured FGSCs were able to successfully colonize the gonad of sterile recipient fish and generate functional gametes. Up to 20% of surviving recipient fish that were injected with the cultured FGSCs were fertile and generated multiple batches of normal offspring for at least 6 months. The FGSC cultures will provide an in vitro system for studies of zebrafish germ cell growth and differentiation and their high frequency of germline transmission following transplantation could form the basis of a stem cell-mediated strategy for gene transfer and manipulation of the zebrafish genome.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0062660