Seeing is believing: Current methods to observe sperm acrosomal exocytosis in real time

Acrosomal exocytosis (AR) is a critical process that sperm need to undergo to fertilize an egg. The evaluation of the presence or absence of the acrosome is usually performed by using lectins or dyes in fixed cells. With this approach, it is neither possible to monitor the dynamic process of exocyto...

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Veröffentlicht in:Molecular reproduction and development 2020-12, Vol.87 (12), p.1188-1198
Hauptverfasser: Balestrini, Paula A., Jabloñski, Martina, Schiavi‐Ehrenhaus, Liza J., Marín‐Briggiler, Clara I., Sánchez‐Cárdenas, Claudia, Darszon, Alberto, Krapf, Darío, Buffone, Mariano G.
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Sprache:eng
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Zusammenfassung:Acrosomal exocytosis (AR) is a critical process that sperm need to undergo to fertilize an egg. The evaluation of the presence or absence of the acrosome is usually performed by using lectins or dyes in fixed cells. With this approach, it is neither possible to monitor the dynamic process of exocytosis and related molecular events while discriminating between live and dead cells, nor to evaluate the acrosomal status while sperm reside in the female reproductive tract. However, over the last two decades, several new methodologies have been used to assess the occurrence of AR in living cells allowing different groups to obtain information that was not possible in the past. These techniques have revolutionized the whole study of this process. This review summarizes current methods available to analyze AR in living cells as well as the important information that emerged from studies using these approaches. This review summarizes current methods available to analyze the acrosomal exocytosis in living sperm as well as the important information that emerged from studies using these approaches.
ISSN:1040-452X
1098-2795
DOI:10.1002/mrd.23431