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Lectin binding sites as markers of neonatal porcine uterine development

TE Spencer, AA Wiley and FF Bartol

Department of Animal and Dairy Sciences, Auburn University, Alabama 36849-5415.

To identify lectin binding sites and to determine if lectin binding patterns change with age in developing neonatal porcine uterine tissues, gilts (n = 3/day) were hysterectomized on Day 0 (birth), 7, 14, 28, 42, or 56. Lectin binding was visualized in Bouin's-fixed uterine tissues with seven biotinylated lectins (ConA, DBA, PNA, RCA-I, SBA, UEA-I, and WGA) and avidin-peroxidase staining procedures. Lectin specificities were demonstrated by pre-incubating lectins with appropriate inhibitory sugars (0.2 M). Staining intensity was evaluated visually (absent, weak, moderate, or strong) for three endometrial tissues; luminal epithelium, glandular epithelium, and stroma. Staining intensities for DBA, PNA, SBA, and WGA were not affected by neonatal age. Staining with these lectins was greater in uterine epithelium (moderate or strong) than in stroma (weak). In contrast, binding patterns for ConA, UEA-I, and RCA-I were affected by neonatal age. Strong epithelial staining associated with ConA binding was observed on all days, whereas stromal ConA staining decreased in intensity from moderate to weak after Day 14. Epithelial staining with UEA-I increased from moderate to strong after Day 28, whereas stromal UEA-I staining decreased from moderate to weak after day 28. Staining with RCA-I was homogeneous for luminal epithelium and stroma but variegated for glandular epithelium on and after Day 7. These observations indicate that a variety of lectin binding sites are present in developing neonatal porcine endometrial tissues and that developmentally related alterations in the distribution and/or orientation of glycoconjugates containing alpha-D-mannose, beta-D-galactose, beta-D-acetyl-N- galactosamine, and alpha-L-fucose residues occur between birth and Day 56 as these tissues mature.

Volume 40, Issue 12, pp. 1937-1942, 12/01/1992
Copyright © 1992 by The Histochemical Society


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K. D. Carpenter, C. A. Gray, T. M. Bryan, T. H. Welsh Jr., and T. E. Spencer
Estrogen and Antiestrogen Effects on Neonatal Ovine Uterine Development
Biol Reprod, August 1, 2003; 69(2): 708 - 717.
[Abstract] [Full Text] [PDF]



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