Fine Structure Observations on the Distribution of Antigenic Sites on Guinea Pig Spermatozoa
نویسندگان
چکیده
The antigenic properties of mammalian spermatozoa have been a topic of interest since the work of Landsteiner before the turn of the century, and the last decade has seen a considerable resurgence of interest in this phenomenon. As many as 16 distinct antigens have been reported to exist on or in mammalian spermatozoa (reviewed by Piko, 1967 ; Metz, 1972) . Weil and Rodenburg (1962), and more recently Mancini et al . (1971), have shown that an antigen apparently derived from accessory glands "coats" the spermatozoa and may aid in sperm transport through the female tract . Katsch et al. (1972) have purified and partially characterized an antigen from guinea pig testes causing aspermatogenesis in guinea pigs and have shown it to be a glycoprotein. Antigenicity of acrosomal enzymes (see Metz, 1972) has also been demonstrated and Menge (1970) has shown that specific antienzyme antibody prevents attachment of rabbit spermatozoa to the zona pellucida . A number of workers have utilized immunofluorescence techniques to demonstrate antigenic regions in spermatozoa . In a key study, Willson and Katsch (1965) showed differences in immunofluorescence patterns on guinea pig sperm derived from various portions of the reproductive tract . Johnson and Hunter (1970) have shown that capacitated rabbit spermatozoa display less immunofluorescence than noncapacitated sperm . A number of workers have demonstrated (see Bedford, 1972, for example) that mammalian sper-
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ورودعنوان ژورنال:
- The Journal of Cell Biology
دوره 60 شماره
صفحات -
تاریخ انتشار 1974