Journal article
The DM domain protein DMRT1 is a dose-sensitive regulator of fetal germ cell proliferation and pluripotency
Proceedings of the National Academy of Sciences - PNAS, Vol.106(52), pp.22323-22328
12/29/2009
Handle:
https://hdl.handle.net/2376/113502
PMCID: PMC2799724
PMID: 20007774
Abstract
Dmrt1 (doublesex and mab-3 related transcription factor 1) is a conserved transcriptional regulator of male differentiation required for testicular development in vertebrates. Here, we show that in mice of the 129Sv strain, loss of Dmrt1 causes a high incidence of teratomas, whereas these tumors do not form in Dmrt1 mutant C57BL/6J mice. Conditional gene targeting indicates that Dmrt1 is required in fetal germ cells but not in Sertoli cells to prevent teratoma formation. Mutant 129Sv germ cells undergo apparently normal differentiation up to embryonic day 13.5 (E13.5), but some cells fail to arrest mitosis and ectopically express pluripotency markers. Expression analysis and chromatin immunoprecipitation identified DMRT1 target genes, whose missexpression may underlie teratoma formation. DMRT1 indirectly activates the GDNF coreceptor Ret, and it directly represses the pluripotency regulator Sox2. Analysis of human germ cell tumors reveals similar gene expression changes correlated to DMRT1 levels. Dmrt1 behaves genetically as a dose-sensitive tumor suppressor gene in 129Sv mice, and natural variation in Dmrt1 activity can confer teratoma susceptibility. This work reveals a genetic link between testicular dysgenesis, pluripotency regulation, and teratoma susceptibility that is highly sensitive to genetic background and to gene dosage.
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Details
- Title
- The DM domain protein DMRT1 is a dose-sensitive regulator of fetal germ cell proliferation and pluripotency
- Creators
- Anthony D Krentz - Department of Genetics, Developmental Biology Center, and Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USAMark W MurphyShinseog KimMatthew S CookBlanche CapelRui ZhuAngabin MatinAaron L SarverKeith L ParkerMichael D GriswoldLeendert H J LooijengaVivian J BardwellDavid Zarkower
- Publication Details
- Proceedings of the National Academy of Sciences - PNAS, Vol.106(52), pp.22323-22328
- Academic Unit
- Molecular Biosciences, School of
- Publisher
- United States
- Grant note
- R01 CA093754 / NCI NIH HHS T32 HD007480 / NICHD NIH HHS CA093754 / NCI NIH HHS R01 GM059152 / NIGMS NIH HHS GM59152 / NIGMS NIH HHS T32HD007480 / NICHD NIH HHS R01 GM087500 / NIGMS NIH HHS
- Identifiers
- 99900547973001842
- Language
- English
- Resource Type
- Journal article