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portada Sperm Acrosome Biogenesis and Function During Fertilization (Advances in Anatomy, Embryology and Cell Biology)
Type
Physical Book
Publisher
Year
2016
Language
English
Pages
172
Format
Paperback
ISBN13
9783319305653
Edition No.
1
Categories

Sperm Acrosome Biogenesis and Function During Fertilization (Advances in Anatomy, Embryology and Cell Biology)

New Book Imported to New Zealand
Delivery: 24 Jul - 31 Jul Shipping: 13 to 14 business days.
NZ$ 232.35
Import costs and 15% GST included in the price ✅
NZ$ 232.35

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Synopsis "Sperm Acrosome Biogenesis and Function During Fertilization (Advances in Anatomy, Embryology and Cell Biology) "

Over the last decades, acrosomal exocytosis (also called the “acrosome reaction”) has been recognized as playing an essential role in fertilization. Secretion of this granule is an absolute requirement for physiological fertilization. In recent years, the study of mammalian acrosomal exocytosis has yielded some major advances that challenge the long-held, general paradigms in the field. Principally, the idea that sperm must be acrosome-intact to bind to the zona pellucida of unfertilized eggs, based largely on in vitro fertilization studies of mouse oocytes denuded of the cumulus oophorus, has been overturned by experiments using state-of-the-art imaging of cumulus-intact oocytes and fertilization experiments where eggs were reinseminated by acrosome-reacted sperm recovered from the perivitelline space of zygotes. From a molecular point of view, acrosome exocytosis is a synchronized and tightly regulated process mediated by molecular mechanisms that are homologous to those reported in neuroendocrinal cell secretions. The authors provide a broader perspective, focusing on a limited number of important topics that are essential for understanding the molecular mechanisms governing this step in the fertilization process. They also discuss molecular aspects such as the signaling pathways leading to exocytosis, including the participation of ion channels, lipids, the fusion machinery proteins and the actin cytoskeleton as well as cellular aspects such as the site of acrosomal exocytosis and the use of gene-manipulated animals to study this process.   

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