Journalartikel
Autorenliste: Haensch, Manka; Simon, Peter; Schoen, Jennifer; Kaese, Miriam; Braun, Beate C.; Jewgenow, Katarina; Goeritz, Franz; Kuepper, Julia; Ahmadvand, Negah; Geyer, Rudolf; Middendorff, Ralf; Mueller, Karin; Galuska, Sebastian P.
Jahr der Veröffentlichung: 2014
Seiten: 488-493
Zeitschrift: Glycobiology
Bandnummer: 24
Heftnummer: 6
ISSN: 0959-6658
eISSN: 1460-2423
Open Access Status: Bronze
DOI Link: https://doi.org/10.1093/glycob/cwu023
Verlag: Oxford University Press
Abstract:
Roe deer (Capreolus capreolus) are seasonal breeders and cyclic structural changes of roe bucks' testis come along with a totally arrested (winter) and a highly activated spermatogenesis (summer). For this reason, roe buck represents an interesting model to study general mechanisms of initiation and termination of spermatogenesis. We investigated if polysialic acid (polySia)-a linear homopolymer of alpha 2,8-linked sialic acids, which could act as a negative regulator of cell-cell adhesion-might be involved in the activation and/or inactivation of spermatogenesis. To address this point, testis samples of adult male roe deer were collected at different time point of the year. Intriguingly, we observed that polySia attached to the neural cell adhesion molecule was enhanced during the onset of spermatogenesis in April. In addition, polySia was highly expressed in December. Predominantly, polySia was detectable between Sertoli cells and spermatogonia in the basal regions of testicular tubules and in the adluminal part of Sertoli cells. Interestingly, similar polySia distributions were observed during early testis development of other mammalians when gonocytes (pre-spermatogonia) and Sertoli cells represent the only cell populations in tubuli seminiferi. Thus, polySia is expressed during key steps of the "on/off mechanisms" of spermatogenesis and might represent one mediator of the interaction and communication between Sertoli cells and germ cell precursors.
Zitierstile
Harvard-Zitierstil: Haensch, M., Simon, P., Schoen, J., Kaese, M., Braun, B., Jewgenow, K., et al. (2014) Polysialylation of NCAM correlates with onset and termination of seasonal spermatogenesis in roe deer, Glycobiology, 24(6), pp. 488-493. https://doi.org/10.1093/glycob/cwu023
APA-Zitierstil: Haensch, M., Simon, P., Schoen, J., Kaese, M., Braun, B., Jewgenow, K., Goeritz, F., Kuepper, J., Ahmadvand, N., Geyer, R., Middendorff, R., Mueller, K., & Galuska, S. (2014). Polysialylation of NCAM correlates with onset and termination of seasonal spermatogenesis in roe deer. Glycobiology. 24(6), 488-493. https://doi.org/10.1093/glycob/cwu023
Schlagwörter
ADHESION MOLECULE NCAM; GDNF; GONOCYTES; neural cell adhesion molecule; POLYSIALIC ACID; ROE DEER; seasonal spermatogenesis; SPERMATOGONIA; ST8SIAII
