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A Regulatory Network of Drosophila Germline Stem Cell Self-renewal

Abstract

Stem cells possess the capacity to generate two cells of distinct fate upon division: one cell retaining stem cell identity and the other cell destined to differentiate. These cell fates are established by cell-type-specific genetic networks. To comprehensively identify components of these networks, we performed a large-scale RNAi screen in Drosophila female germline stem cells (GSCs) covering ∼25% of the genome. The screen identified 366 genes that affect GSC maintenance, differentiation, or other processes involved in oogenesis. Comparison of GSC regulators with neural stem cell self-renewal factors identifies common and cell-type-specific self-renewal genes. Importantly, we identify the histone methyltransferase Set1 as a GSC-specific self-renewal factor. Loss of Set1 in neural stem cells does not affect cell fate decisions, suggesting a differential requirement of H3K4me3 in different stem cell lineages. Altogether, our study provides a resource that will help to further dissect the networks underlying stem cell self-renewal.

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References
1.
Karpiuk O, Najafova Z, Kramer F, Hennion M, Galonska C, Konig A . The histone H2B monoubiquitination regulatory pathway is required for differentiation of multipotent stem cells. Mol Cell. 2012; 46(5):705-13. DOI: 10.1016/j.molcel.2012.05.022. View

2.
Neumuller R, Betschinger J, Fischer A, Bushati N, Poernbacher I, Mechtler K . Mei-P26 regulates microRNAs and cell growth in the Drosophila ovarian stem cell lineage. Nature. 2008; 454(7201):241-5. PMC: 2988194. DOI: 10.1038/nature07014. View

3.
Ding L, Paszkowski-Rogacz M, Nitzsche A, Slabicki M, Heninger A, de Vries I . A genome-scale RNAi screen for Oct4 modulators defines a role of the Paf1 complex for embryonic stem cell identity. Cell Stem Cell. 2009; 4(5):403-15. DOI: 10.1016/j.stem.2009.03.009. View

4.
Chen D, McKearin D . A discrete transcriptional silencer in the bam gene determines asymmetric division of the Drosophila germline stem cell. Development. 2003; 130(6):1159-70. DOI: 10.1242/dev.00325. View

5.
Ni J, Zhou R, Czech B, Liu L, Holderbaum L, Yang-Zhou D . A genome-scale shRNA resource for transgenic RNAi in Drosophila. Nat Methods. 2011; 8(5):405-7. PMC: 3489273. DOI: 10.1038/nmeth.1592. View