期刊论文详细信息
BMC Research Notes
Identifying disruptors of male germ cell development by small molecule screening in ex vivo gonad cultures
Patrick S Western1  Denise C Miles3  Stephanie I Wakeling2 
[1] Monash Institute of Medical Research, Monash University, Clayton, 27-31 Wright St, Clayton, VIC, 3168, Australia;Current addresses: SIW: Deakin University, Geelong, VIC, 3220, Australia;Department of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, the Netherlands
关键词: Germ cell tumour;    Gonad;    Flow cytometry;    Organ culture;    Testicular dysgenesis;    Signaling;    Germ cell;   
Others  :  1142816
DOI  :  10.1186/1756-0500-6-168
 received in 2013-01-16, accepted in 2013-04-18,  发布年份 2013
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【 摘 要 】

Background

Germ cell development involves formation of the spermatogenic or oogenic lineages from the bipotential primordial germ cells. Signaling mechanisms in the fetal testis and ovary determine whether germ cells enter the male or female developmental pathway, respectively. These signaling processes underpin an important phase of germ cell development, disruption of which can lead to failed germ cell function resulting in infertility or the formation of germ cell tumours.

Findings

In this study we have developed a small molecule screening protocol combined with flow cytometry to identify signaling pathways that direct male-specific development of germ cells. Here we provide a detailed method for this screening protocol, which we have used to identify signaling pathways important for male germ cell development.

Conclusion

This method will be of particular use in screening inhibitors of signaling pathways, endocrine disruptors or other chemicals for their ability to disrupt testis and germ cell development, thereby providing insight into testicular dysgenesis and factors underlying poor male reproductive health.

【 授权许可】

   
2013 Wakeling et al.; licensee BioMed Central Ltd.

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【 参考文献 】
  • [1]Saitou M, Yamaji M: Germ cell specification in mice: signaling, transcription regulation, and epigenetic consequences. Reproduction 2010, 139:931-942.
  • [2]Durcova-Hills G, Surani A: Reprogramming primordial germ cells (PGC) to embryonic germ (EG) cells. Curr Protoc Stem Cell Biol 2008, Chapter 1:Unit1A 3.
  • [3]Maldonado-Saldivia J, van den Bergen J, Krouskos M, Gilchrist M, Lee C, Li R, Sinclair AH, Surani MA, Western PS: Dppa2 and Dppa4 are closely linked SAP motif genes restricted to pluripotent cells and the germ line. Stem Cells 2007, 25:19-28.
  • [4]Western P: Foetal germ cells: striking the balance between pluripotency and differentiation. Int J Dev Biol 2009, 53:393-409.
  • [5]Yamaguchi S, Kimura H, Tada M, Nakatsuji N, Tada T: Nanog expression in mouse germ cell development. Gene Expr Patterns 2005, 5:639-646.
  • [6]McLaren A: Primordial germ cells in the mouse. Dev Biol 2003, 262:1-15.
  • [7]Guerquin MJ, Duquenne C, Lahaye JB, Tourpin S, Habert R, Livera G: New testicular mechanisms involved in the prevention of fetal meiotic initiation in mice. Dev Biol 2010, 346:320-330.
  • [8]Adams IR, McLaren A: Sexually dimorphic development of mouse primordial germ cells: switching from oogenesis to spermatogenesis. Development 2002, 129:1155-1164.
  • [9]Kocer A, Reichmann J, Best D, Adams IR: Germ cell sex determination in mammals. Mol Hum Reprod 2009, 15:205-213.
  • [10]Schmahl J, Eicher EM, Washburn LL, Capel B: Sry induces cell proliferation in the mouse gonad. Development 2000, 127:65-73.
  • [11]Schmahl J, Kim Y, Colvin JS, Ornitz DM, Capel B: Fgf9 induces proliferation and nuclear localization of FGFR2 in Sertoli precursors during male sex determination. Development 2004, 131:3627-3636.
  • [12]Wilhelm D, Koopman P: The makings of maleness: towards an integrated view of male sexual development. Nat Rev Genet 2006, 7:620-631.
  • [13]Brennan J, Capel B: One tissue, two fates: molecular genetic events that underlie testis versus ovary development. Nat Rev Genet 2004, 5:509-521.
  • [14]Ewen KA, Koopman P: Mouse germ cell development: from specification to sex determination. Mol Cell Endocrinol 2010, 323:76-93.
  • [15]Western PS, Miles DC, van den Bergen JA, Burton M, Sinclair AH: Dynamic regulation of mitotic arrest in fetal male germ cells. Stem Cells 2008, 26:339-347.
  • [16]Western PS, Ralli RA, Wakeling SI, Lo C, van den Bergen JA, Miles DC, Sinclair AH: Mitotic arrest in teratoma susceptible fetal male germ cells. PLoS One 2011, 6:e20736.
  • [17]Spiller CM, Wilhelm D, Koopman P: Retinoblastoma 1 protein modulates XY germ cell entry into G1/G0 arrest during fetal development in mice. Biol Reprod 2010, 82:433-443.
  • [18]Western PS, van den Bergen JA, Miles DC, Sinclair AH: Male germ cell differentiation involves complex repression of the regulatory network controlling pluripotency. FASEB J 2010, 24:3026-3035.
  • [19]Cook MS, Coveney D, Batchvarov I, Nadeau JH, Capel B: BAX-mediated cell death affects early germ cell loss and incidence of testicular teratomas in Dnd1(Ter/Ter) mice. Dev Biol 2009, 328:377-383.
  • [20]Krentz AD, Murphy MW, Kim S, Cook MS, Capel B, Zhu R, Matin A, Sarver AL, Parker KL, Griswold MD, et al.: The DM domain protein DMRT1 is a dose-sensitive regulator of fetal germ cell proliferation and pluripotency. Proc Natl Acad Sci U S A 2009, 106:22323-22328.
  • [21]Miles DC, van den Bergen JA, Sinclair AH, Western PS: Regulation of the female mouse germ cell cycle during entry into meiosis. Cell Cycle 2010, 9:408-418.
  • [22]Miles DC, Wakeling SI, Stringer JM, van den Bergen JA, Wilhelm D, Sinclair AH, Western PS: Signaling through the TGF beta-activin receptors ALK4/5/7 regulates testis formation and male germ cell development. PLoS One 2013, 8:e54606.
  • [23]Skakkebaek NE: Testicular dysgenesis syndrome. Horm Res 2003, 60(Suppl 3):49.
  • [24]Jameson SA, Natarajan A, Cool J, Defalco T, Maatouk DM, Mork L, Munger SC, Capel B: Temporal transcriptional profiling of somatic and germ cells reveals biased lineage priming of sexual fate in the fetal mouse gonad. PLoS Genet 2012, 8:e1002575.
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