Abstract
The regional difference in the carbohydrate components of the ductus epididymis epithelium of a lizard was delineated by means of 13 lectins. Basal cells expressed only N-acetylglucosamine (GlcNAc). Throughout the ductus, the secretory cells showed oligosaccharides with terminal N-acetylneuraminic acid (Neu5Ac)α(2,6)galactose (Gal)/N-acetylgalactosamine (GalNAc) and internal mannose (Man) and/or glucose (Glc) in the whole cytoplasm, oligosaccharides terminating in Neu5Acα(2,6)Galβ(1,3)GalNAc, Neu5Acα(2,6)Galβ (1,4)GlcNAc, GalNAc, GlcNAc, and fucose (Fuc) in the supra-nuclear zone, and also glycans terminating in Neu5Acα(2,3)Galβ (1,4)GlcNAc, Neu5Acα(2,6)Galβ(1,3)GalNAc, Galβ (1,4)GlcNAc on the luminal surface. In the caput and corpus regions, the supra-nuclear cytoplasm was characterized by terminal Galβ(1,4)GlcNAc and αGalNAc, the luminal surface by αGalNAc and Gal. The Golgi zone, showing oligosaccharides with terminal Neu5Acα(2,3)Galβ (1,4)GlcNAc, Neu5Acα(2,6)Galβ (1,3)GalNAc, Neu5Acα(2,6)Galβ (1,4)GlcNAc, and internal GlcNAc, expressed terminal Galβ (1,4)GlcNAc and αGalNAc in the caput, and terminal β GalNAc in the corpus. The granules showed all the investigated carbohydrates in their peripheral zone except terminal βGalNAc and Fuc, whereas internal Man/Glc and terminal Gal were expressed in the central core, and Fuc throughout the ductus, terminal GlcNAc in the caput and corpus, and terminal αGalNAc only in the corpus.
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Desantis, S., Labate, M., Maria Labate, G. et al. Evidence of Regional Differences in the Lectin Histochemistry Along the Ductus Epididymis of the Lizard, Podarcis Sicula Raf.. Histochem J 34, 123–130 (2002). https://doi.org/10.1023/A:1020986313281
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DOI: https://doi.org/10.1023/A:1020986313281