Journal of Andrology
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Published-Ahead-of-Print October 29, 2009, DOI:10.2164/jandrol.109.008094
Journal of Andrology, Vol. 31, No. 1, January/February 2010
Copyright © American Society of Andrology
DOI: 10.2164/jandrol.109.008094

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Part 3 - Regulation of Germ Cell Development

The Molecular Mechanisms Regulating Germ Cell Development and Potential

YASUHISA MATSUI

Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.

Correspondence to: Dr Yasuhisa Matsui, Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 980-8575, Japan (e-mail: ymatsui{at}idac.tohoku.ac.jp).



Abstract

Time-critical extracellular stimuli as well as the intrinsic functions of transcriptional regulatory molecules play essential roles in fate determination and differentiation of mouse primordial germ cells (PGCs). We found that the precursor cells of PGCs require E-cadherin–mediated cell-cell interaction and the functions of transcription factor Oct3/4 to be specified to PGCs. In addition, transcriptional factors commonly regulating a number of PGC-specific genes appear important for PGC development, and we demonstrated that PGC-specific expression of the mil-1 gene is controlled by germ cell–conserved regulatory sequences in the 5' flanking region. Once they have undergone specification and differentiation, PGCs normally give rise to gametes, but they maintain the potential to be converted into pluripotential stem cells upon activation of particular signaling pathways.

     Key words: Primordial germ cell, E-cadherin, Oct3/4, mil-1, GFP, EG cell




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