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Lookup NU author(s): Professor David Elliott
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Background: A proliferation marker, proliferating cell nuclear antigen (PCNA), a Sertoli cell specific transcription factor, GATA-1 and the male germ cell specific, RNA binding motif (RBM), were used to identify different cellular populations during postnatal development of the mouse testis. Methods: Immunohistochemistry, RT-PCR and real-time quantitative RT-PCR (QRT-PCR) were used. Results: PCNA was expressed in pre-Sertoli and germ cells on the day of birth. Both pre-meiotic germ cells and spermatocytes expressed RBM throughout postnatal development. RBM-positive cell counts and QRT-PCR of RBM showed that average level of RBM per cell is highest in juvenile males between 14 and 21 days. From 42 days onward, there was a dramatic decrease in RBM expression in individual pre-meiotic and meiotic germ cells. Conclusions: These markers were used to correlate cell proliferative capability, gene expression profile and anatomic location within the developing mouse testis. The majority of germ cells start active proliferation once they have migrated to the basement membrane or immediately before. RBM is more highly expressed during the first wave of spermatogenesis versus subsequent waves, suggesting that there may be a change in the activity of RBM. © European Society of Human Reproduction and Embryology 2004; all rights reserved.
Author(s): Jarvis S, Elliott DJ, Morgan D, Winston R, Readhead C
Publication type: Article
Publication status: Published
Journal: Human Reproduction
Print publication date: 01/01/2005
ISSN (print): 0268-1161
Publisher: Oxford University Press
PubMed id: 15539445
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