Localization of antigenic determinants recognized by a monoclonal antibody in rat epididymal spermatozoa, with particular reference to sperm maturation

Andrologia
J JinT Katayama

Abstract

This study localized antigenic determinants recognized by a mouse anti-human sperm monoclonal antibody TüS10 immunocytochemically and immunoelectron microscopically in the rat sperm recovered from the caput and cauda epididymidis. Immunocytochemistry showed that the antibody bound specifically to the plasma membrane overlying the principal piece of membrane-intact sperm from the caput and cauda epididymidis. Demembranation by Triton X-100 significantly decreased the affinity of the monoclonal antibody TüS10 to the caput sperm but did not obviously change that to the cauda sperm. Immunoelectron microscopy with biotin-streptavidin peroxidase complex pre-embedding method confirmed the localization of the antigenic determinants over the cell surface of the principal piece of the membrane-intact spermatozoa from the caput and cauda epididymidis. The demembranated sperm from the caput epididymidis showed no intracellular labelling, while those from the cauda displayed labelling on their external surface of the fibrous sheath. Using monoclonal antibody TüS10 as a probe, we detected different distribution patterns of the antigenic determinants between the spermatozoa in the caput and cauda epididymidis. These results suggest that sperm...Continue Reading

References

Jun 1, 1975·Developmental Biology·D W Fawcett
Jun 1, 1976·Biology of Reproduction·G E OlsonD W Fawcett
Feb 1, 1988·International Journal of Andrology·D HuneauR Scholler
Jan 1, 1986·Cell Motility and the Cytoskeleton·C SerresP Jouannet
Nov 1, 1985·The American Journal of Anatomy·E M EddyB A Fenderson

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