Roles of Stra8 and Tcergll in retinoic acid induced spermatogonial differentiation in mouse
Retinoic acid (RA) induces spermatogonial differentiation, but the mechanism by which it operates remains largely unknown. We developed a germ cell culture assay system to study genes involved in spermatogonial differentiation triggered by RA. Stimulated by RA 8 (Stra8), a RA-inducible gene, is indi...
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Published in | Biology of reproduction Vol. 105; no. 2; p. 503 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Oxford University Press
01.08.2021
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Abstract | Retinoic acid (RA) induces spermatogonial differentiation, but the mechanism by which it operates remains largely unknown. We developed a germ cell culture assay system to study genes involved in spermatogonial differentiation triggered by RA. Stimulated by RA 8 (Stra8), a RA-inducible gene, is indispensable for meiosis initiation, and its deletion results in a complete block of spermatogenesis at the pre-leptotene/zygotene stage. To interrogate the role of Stra8 in RA mediated differentiation of spermatogonia, we derived germ cell cultures from the neonatal testis of both wild type and Stra8 knock-out mice. We provide the first evidence that Stra8 plays a crucial role in modulating the responsiveness of undifferentiated spermatogonia to RA and facilitates transition to a differentiated state. Stra8-mediated differentiation is achieved through the downregulation of a large portfolio of genes and pathways, most notably including genes involved in the spermatogonial stem cell self-renewal process. We also report here for the first time the role of transcription elongation regulator-1 like (Tcergll) as a downstream effector of RA-induced spermatogonial differentiation. Summary sentence The genes stimulated by retinoic acid 8 (Stra8) and transcription elongation regulator-1 like (Tcergll) are necessary in early-stage male germ cell differentiation induced by retinoic acid (RA). Stra8 is critical in modulating the responsiveness of undifferentiated spermatogonia to RA. Keywords: Stra8, Tcergll, SSC, spermatogonia, differentiation, transplantation. |
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AbstractList | Retinoic acid (RA) induces spermatogonial differentiation, but the mechanism by which it operates remains largely unknown. We developed a germ cell culture assay system to study genes involved in spermatogonial differentiation triggered by RA. Stimulated by RA 8 (Stra8), a RA-inducible gene, is indispensable for meiosis initiation, and its deletion results in a complete block of spermatogenesis at the pre-leptotene/zygotene stage. To interrogate the role of Stra8 in RA mediated differentiation of spermatogonia, we derived germ cell cultures from the neonatal testis of both wild type and Stra8 knock-out mice. We provide the first evidence that Stra8 plays a crucial role in modulating the responsiveness of undifferentiated spermatogonia to RA and facilitates transition to a differentiated state. Stra8-mediated differentiation is achieved through the downregulation of a large portfolio of genes and pathways, most notably including genes involved in the spermatogonial stem cell self-renewal process. We also report here for the first time the role of transcription elongation regulator-1 like (Tcergll) as a downstream effector of RA-induced spermatogonial differentiation. Summary sentence The genes stimulated by retinoic acid 8 (Stra8) and transcription elongation regulator-1 like (Tcergll) are necessary in early-stage male germ cell differentiation induced by retinoic acid (RA). Stra8 is critical in modulating the responsiveness of undifferentiated spermatogonia to RA. Keywords: Stra8, Tcergll, SSC, spermatogonia, differentiation, transplantation. Retinoic acid (RA) induces spermatogonial differentiation, but the mechanism by which it operates remains largely unknown. We developed a germ cell culture assay system to study genes involved in spermatogonial differentiation triggered by RA. Stimulated by RA 8 (Stra8), a RA-inducible gene, is indispensable for meiosis initiation, and its deletion results in a complete block of spermatogenesis at the pre-leptotene/zygotene stage. To interrogate the role of Stra8 in RA mediated differentiation of spermatogonia, we derived germ cell cultures from the neonatal testis of both wild type and Stra8 knock-out mice. We provide the first evidence that Stra8 plays a crucial role in modulating the responsiveness of undifferentiated spermatogonia to RA and facilitates transition to a differentiated state. Stra8-mediated differentiation is achieved through the downregulation of a large portfolio of genes and pathways, most notably including genes involved in the spermatogonial stem cell self-renewal process. We also report here for the first time the role of transcription elongation regulator-1 like (Tcergll) as a downstream effector of RA-induced spermatogonial differentiation. The genes stimulated by retinoic acid 8 (Stra8) and transcription elongation regulator-1 like (Tcergll) are necessary in early-stage male germ cell differentiation induced by retinoic acid (RA). Stra8 is critical in modulating the responsiveness of undifferentiated spermatogonia to RA. |
Audience | Academic |
Author | Stefanovski, Darko Brinster, Ralph L Avarbock, Mary Sinha, Nilam Whelan, Eoin C Tobias, John W |
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DOI | 10.1093/biolre/ioab093 |
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SubjectTerms | Cell differentiation Genetic transcription Stem cells Tretinoin |
Title | Roles of Stra8 and Tcergll in retinoic acid induced spermatogonial differentiation in mouse |
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