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Cytogenet Genome Res. 2003;103(3-4):267-76.
6 G# g0 X& Z( a( N BSpecific arrests of spermatogenesis in genetically modified and mutant mice.de Rooij DG, de Boer P.
. N: h' P3 L8 HSourceDepartment of Endocrinology, Faculty of Biology, Utrecht University, UMCU, Utrecht, The Netherlands. d.g.derooij@bio.uu.nl& b$ C0 l# h, B7 g2 W3 T
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Abstract
3 f, g9 x6 P* ~4 HIn naturally occurring mutant mice but also in mice genetically modified for the study of other organs, relatively often a spermatogenic arrest is seen. In a number of cases the arrests appear to be very specific causing apoptosis of germ cells at a particular step in their development, while before this step cells progress normally. These steps include: proliferation/migration of primordial germ cells, the production of differentiating spermatogonia by gonocytes, the regulation of stem cell renewal/differentiation, the differentiation of A(al) into A1 spermatogonia, proliferation of A1-A4 spermatogonia, germ cell density regulation, start of meiosis, epithelial stage IV checkpoint of pachytene spermatocytes, the first meiotic division, the formation of the acrosomic vesicle in spermatids and several other steps in spermatid development. In addition, there are many mice that have not been studied in enough detail for a proper categorization. In this review an overview is given of the various mutations and genetically modified mice showing a direct effect on specific spermatogenic cell types. In addition, the relevance of these models to our understanding of the spermatogenic process is discussed.
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Copyright 2003 S. Karger AG, Basel
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! A3 }+ |( j4 fPMID: 15051947 [PubMed - indexed for MEDLINE]
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SOHLH1 and SOHLH2 control Kit expression during postnatal male germ cell development.Florencia Barrios§, Doria Filipponi§, Federica Campolo, Manuele Gori, Federica Bramucci, Manuela Pellegrini, Sergio Ottolenghi, Pellegrino Rossi, Emmanuele A. Jannini and Susanna Dolci*
: g; V8 f8 {6 O4 [! u↵*Author for correspondence: Susanna Dolci, MD, PhD Dept. Public Health and Cell Biology University of Rome Tor Vergata Via Montpellier 1, Bldg. E Nord, 00133, Rome, Italy dolci@uniroma2.it; ph:+390672596252 fax: +390672596268
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发表于 2012-5-27 10:23
