Labelling of living mammalian spermatozoa with the fluorescent thiol alkylating agent, monobromobimane (MB): Immobilization upon exposure to ultraviolet light and analysis of acrosomal status
Identifieur interne : 00DF92 ( Main/Exploration ); précédent : 00DF91; suivant : 00DF93Labelling of living mammalian spermatozoa with the fluorescent thiol alkylating agent, monobromobimane (MB): Immobilization upon exposure to ultraviolet light and analysis of acrosomal status
Auteurs : James M. Cummins [Australie] ; Alan D. Fleming [États-Unis] ; Nicole Crozet [France] ; Thomas J. Kuehl [États-Unis] ; Nechama S. Kosower [Israël] ; Ryuzo Yanagimachi [États-Unis]Source :
- Journal of Experimental Zoology [ 0022-104X ] ; 1986-03.
Descripteurs français
- Wicri :
- topic : étiquetage, Optique.
English descriptors
- KwdEn :
- Acrosomal, Acrosomal status, Acrosome, Acrosome reaction, Acrosome reactions, Baboon, Baboon spermatozoa, Capacitation, Chimpanzee, Chimpanzee spermatozoa, Cumulus, Epifluorescence, Epifluorescence optics, Fluorescent labelling, Golden hamster, Golden hamster spermatozoa, Golden hamster spermatozoon, Hamster, Hamster spermatozoa, Head region, Human spermatozoa, Immediate immobilization, Immobilization, Kosower, Labelling, Midpiece, Motile, Motile spermatozoa, Motility, Optics, Principal piece, Sperm, Sperm motility, Sperm suspension, Spermatozoon, Unlabelled, Unlabelled spermatozoa, Yanagimachi.
- Teeft :
- Acrosomal, Acrosomal status, Acrosome, Acrosome reaction, Acrosome reactions, Baboon, Baboon spermatozoa, Capacitation, Chimpanzee, Chimpanzee spermatozoa, Cumulus, Epifluorescence, Epifluorescence optics, Fluorescent labelling, Golden hamster, Golden hamster spermatozoa, Golden hamster spermatozoon, Hamster, Hamster spermatozoa, Head region, Human spermatozoa, Immediate immobilization, Immobilization, Kosower, Labelling, Midpiece, Motile, Motile spermatozoa, Motility, Optics, Principal piece, Sperm, Sperm motility, Sperm suspension, Spermatozoon, Unlabelled, Unlabelled spermatozoa, Yanagimachi.
Abstract
Living spermatozoa of seven mammalian species were treated with the thiol‐alkylating fluorescent labelling compound, monobromobimane (MBBR). MB‐labelling alone had no effect on sperm motility, nor on the time course or ability of golden hamster spermatozoa to undergo the acrosome reaction when capacitated in vitro. Exposure of MB‐labelled spermatozoa to ultraviolet (UV) light and excitation of the MB fluorochrome resulted in virtually immediate immobilization of the spermatozoa without affecting acrosomal status. UV exposure of unlabelled spermatozoa for up to 30 sec had no effect upon motility. Immobilization of MB‐labelled spermatozoa depended on the midpiece being irradiated, as irradiation of the head alone, or of the more distal parts of the principal piece, had little or no effect upon motility. Labelling with MB followed by immobilization of individually selected spermatozoa was most useful for detailing the course and site of occurrence of the acrosome reaction during penetration of the cumulus oophorus by golden hamster spermatozoa in vitro. In these often hyperactivated spermatozoa, precise determination of the acrosomal status could not often otherwise be made due to the difficulty in visualizing the acrosomal region of a vigorously thrashing, hyper‐activated spermatozoon. This technique should prove valuable in a variety of studies on sperm motility, capacitation and fertilization, and could also be extended to other cell systems.
Url:
DOI: 10.1002/jez.1402370310
Affiliations:
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Le document en format XML
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<series><title level="j" type="main">Journal of Experimental Zoology</title>
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<term>Acrosome reaction</term>
<term>Acrosome reactions</term>
<term>Baboon</term>
<term>Baboon spermatozoa</term>
<term>Capacitation</term>
<term>Chimpanzee</term>
<term>Chimpanzee spermatozoa</term>
<term>Cumulus</term>
<term>Epifluorescence</term>
<term>Epifluorescence optics</term>
<term>Fluorescent labelling</term>
<term>Golden hamster</term>
<term>Golden hamster spermatozoa</term>
<term>Golden hamster spermatozoon</term>
<term>Hamster</term>
<term>Hamster spermatozoa</term>
<term>Head region</term>
<term>Human spermatozoa</term>
<term>Immediate immobilization</term>
<term>Immobilization</term>
<term>Kosower</term>
<term>Labelling</term>
<term>Midpiece</term>
<term>Motile</term>
<term>Motile spermatozoa</term>
<term>Motility</term>
<term>Optics</term>
<term>Principal piece</term>
<term>Sperm</term>
<term>Sperm motility</term>
<term>Sperm suspension</term>
<term>Spermatozoon</term>
<term>Unlabelled</term>
<term>Unlabelled spermatozoa</term>
<term>Yanagimachi</term>
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<term>Acrosome reaction</term>
<term>Acrosome reactions</term>
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<term>Baboon spermatozoa</term>
<term>Capacitation</term>
<term>Chimpanzee</term>
<term>Chimpanzee spermatozoa</term>
<term>Cumulus</term>
<term>Epifluorescence</term>
<term>Epifluorescence optics</term>
<term>Fluorescent labelling</term>
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<term>Golden hamster spermatozoa</term>
<term>Golden hamster spermatozoon</term>
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<term>Hamster spermatozoa</term>
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<term>Human spermatozoa</term>
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<front><div type="abstract" xml:lang="en">Living spermatozoa of seven mammalian species were treated with the thiol‐alkylating fluorescent labelling compound, monobromobimane (MBBR). MB‐labelling alone had no effect on sperm motility, nor on the time course or ability of golden hamster spermatozoa to undergo the acrosome reaction when capacitated in vitro. Exposure of MB‐labelled spermatozoa to ultraviolet (UV) light and excitation of the MB fluorochrome resulted in virtually immediate immobilization of the spermatozoa without affecting acrosomal status. UV exposure of unlabelled spermatozoa for up to 30 sec had no effect upon motility. Immobilization of MB‐labelled spermatozoa depended on the midpiece being irradiated, as irradiation of the head alone, or of the more distal parts of the principal piece, had little or no effect upon motility. Labelling with MB followed by immobilization of individually selected spermatozoa was most useful for detailing the course and site of occurrence of the acrosome reaction during penetration of the cumulus oophorus by golden hamster spermatozoa in vitro. In these often hyperactivated spermatozoa, precise determination of the acrosomal status could not often otherwise be made due to the difficulty in visualizing the acrosomal region of a vigorously thrashing, hyper‐activated spermatozoon. This technique should prove valuable in a variety of studies on sperm motility, capacitation and fertilization, and could also be extended to other cell systems.</div>
</front>
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