Chapter title |
Acrosome Reaction as a Preparation for Gamete Fusion
|
---|---|
Chapter number | 9 |
Book title |
Sperm Acrosome Biogenesis and Function During Fertilization
|
Published in |
Advances in anatomy embryology and cell biology, January 2016
|
DOI | 10.1007/978-3-319-30567-7_9 |
Pubmed ID | |
Book ISBNs |
978-3-31-930565-3, 978-3-31-930567-7
|
Authors |
Patricia S. Cuasnicú, Vanina G. Da Ros, Mariana Weigel Muñoz, Débora J. Cohen, Cuasnicú, Patricia S., Da Ros, Vanina G., Weigel Muñoz, Mariana, Cohen, Débora J. |
Abstract |
The acrosome reaction (AR) is a universal requisite for sperm-egg fusion. However, whereas through the animal kingdom fusion of spermatozoa with the egg plasma membrane occurs via the inner acrosomal membrane exposed after the AR, in eutherian mammals, gamete fusion takes place through a specialized region of the acrosome known as the equatorial segment (ES) which becomes fusogenic only after the AR is completed. This chapter focuses on the different molecular mechanisms involved in the acquisition of the fusogenicity of the ES after the AR. We provide an update of the knowledge about the proteins proposed to have a role in this process either by modifying cytoskeletal and/or membrane molecules or by relocalizing to the ES after the AR to subsequently participate in gamete fusion. |
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