The kinetics of human sperm binding to the human zona pellucida and zona-free hamster oocyte in vitro

1985 ◽  
Vol 12 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Sherry L. Singer ◽  
Hovey Lambert ◽  
James W. Overstreet ◽  
Frederick W. Hanson ◽  
Ryuzo Yanagimachi
Keyword(s):  
Zona Pellucida ◽  
Human Sperm ◽  
Sperm Binding ◽  
Hamster Oocyte ◽  
Kinetics Of

Human ZP3 restores fertility in Zp3 null mice without affecting order-specific sperm binding

Development ◽  
1998 ◽  
Vol 125 (13) ◽  
pp. 2415-2424 ◽  
Author(s):  
T.L. Rankin ◽  
Z.B. Tong ◽  
P.E. Castle ◽  
E. Lee ◽  
R. Gore-Langton ◽  
...  
Keyword(s):  
Zona Pellucida ◽  
Molecular Basis ◽  
Human Sperm ◽  
Apparent Mass ◽  
Sperm Binding ◽  
Mammalian Fertilization ◽  
Vitro Data ◽  
In Vitro Data

The mammalian zona pellucida surrounding ovulated eggs mediates sperm binding at fertilization, provides a postfertilization block to polyspermy, and facilitates passage of pre-implantation embryos down the oviduct. Although the three zona proteins (ZP1, ZP2, ZP3) are well conserved, mammalian fertilization is relatively specific and human sperm do not bind to the mouse zona pellucida. There are considerable in vitro data that ZP3 acts as a primary sperm adhesion molecule in mice and, by analogy, a similar role has been postulated for human ZP3. Genetically altered mice lacking ZP3 (Zp3(tm/tm)) do not form a zona pellucida and are infertile. To rescue this phenotype, transgenic mice expressing human ZP3 (67% identical to mouse ZP3) were produced and bred with Zp3(tm/tm) null mice. The resultant human ZP3 rescue females had chimeric zonae pellucidae composed of mouse ZP1, mouse ZP2 and human ZP3. Human ZP3 expressed in mouse oocytes had an apparent mass (64 kDa) indistinguishable from native human ZP3 and distinct from mouse ZP3 (83 kDa). Despite the presence of human ZP3, human sperm did not bind to the chimeric zona pellucida, and notwithstanding the absence of mouse ZP3, mouse sperm bound to ovulated eggs in vitro and fertility was restored in vivo. These data have implications regarding the molecular basis of mouse and human sperm binding to their respective zonae pellucidae.

Use of oocytes that failed to be fertilized in vitro to study human sperm-oocyte interactions: comparison of sperm-oolemma and sperm-zona pellucida binding, and relationship with results of IVF

1990 ◽  
Vol 2 (6) ◽  
pp. 641 ◽  
Author(s):  
DY Liu ◽  
A Lopata ◽  
HW Baker
Keyword(s):  
Zona Pellucida ◽  
Logistic Regression Model ◽  
Sperm Concentration ◽  
Human Sperm ◽  
Fertilization In Vitro ◽  
Motile Sperm ◽  
Vitro Fertilization ◽  
Binding Ratio ◽  
Sperm Binding

A test for human sperm binding to the oolemma was developed with oocytes that failed to be fertilized in vitro. The zonae pellucidae of the oocytes were removed under a dissecting microscope by brief exposure to dilute HCl (pH 2.5-3.0) in 0.9% NaCl. The zona-free oocytes (ZFOs) were incubated with a mixture of equal numbers of motile sperm from men to be tested and fertile donors. The sperm was differentially labelled with fluorescein or rhodamine and the results expressed as a ratio of the number of test to control sperm bound to several ZFOs in order to control for variability in the ability of the oolemma to bind sperm. The number of sperm bound to the oolemma increased with time and sperm concentration. The sperm-oolemma binding ratio determined for 32 patients undergoing in vitro fertilization (IVF) was significantly correlated with the sperm-zona pellucida (ZP) binding ratio but was not correlated with other sperm tests. The sperm-oolemma binding ratio was also related to the IVF rate, but this was not significant if the sperm-ZP binding ratio was included in the logistic regression model. Only four of the 32 patients had failure of fertilization in vitro. The human sperm-oolemma binding test may be useful for studying the interaction between gametes, but the test is unlikely to be as useful clinically as the sperm-ZP binding test for predicting fertilization in vitro.

Differences between antigenic determinants of pig and cat zona pellucida proteins

Reproduction ◽  
2000 ◽  
pp. 15-23 ◽  
Author(s):  
K Jewgenow ◽  
M Rohleder ◽  
I Wegner
Keyword(s):  
In Vitro Fertilization ◽  
Zona Pellucida ◽  
Antigenic Determinants ◽  
Vitro Fertilization ◽  
Contraceptive Vaccine ◽  
Sperm Binding ◽  
Dependent Inhibition ◽  
Dose Dependent Inhibition ◽  
Dose Dependent

Despite many efforts, the control of reproduction in feral cat populations is still a problem in urban regions around the world. Immunocontraception is a promising approach; thus the present study examined the suitability of the widely used pig zona pellucida proteins (pZP) for contraception in feral domestic cats. Purified zona pellucida proteins obtained from pig and cat ovaries were used to produce highly specific antisera in rabbits. Antibodies against pZP raised in rabbits or lions were not effective inhibitors of either in vitro sperm binding (cat spermatozoa to cat oocytes) or in vitro fertilization in cats, whereas antibodies against feline zona pellucida proteins (fZP) raised in rabbits showed a dose-dependent inhibition of in vitro fertilization. Immunoelectrophoresis, ELISA and immunohistology of ovaries confirmed these results, showing crossreactivity of anti-fZP sera to fZP and to a lesser extent to pZP, but no interaction of anti-pZP sera with fZP. It is concluded that cat and pig zonae pellucidae express a very small number of shared antigenic determinants, making the use of pZP vaccine in cats questionable. A contraceptive vaccine based on feline zona pellucida determinants will be a better choice for the control of reproduction in feral cats if immunogenity can be achieved.

Characterization of Human Sperm Binding to Homologous Recombinant Zona Pellucida Proteins

2011 ◽  
Vol 18 (9) ◽  
pp. 876-885 ◽  
Author(s):  
Mayel Chirinos ◽  
Cecilia Cariño ◽  
María Elena González-González ◽  
Ernesto Arreola ◽  
Rodrigo Reveles ◽  
...  
Keyword(s):  
Zona Pellucida ◽  
Human Sperm ◽  
Sperm Binding

scholarly journals A single domain of the ZP2 zona pellucida protein mediates gamete recognition in mice and humans

2014 ◽  
Vol 205 (6) ◽  
pp. 801-809 ◽  
Author(s):  
Matteo A. Avella ◽  
Boris Baibakov ◽  
Jurrien Dean
Keyword(s):  
Transgenic Mice ◽  
Zona Pellucida ◽  
Human Sperm ◽  
Recombinant Peptide ◽  
Genetic Ablation ◽  
Sperm Binding ◽  
Gamete Recognition ◽  
Mammalian Fertilization ◽  
Human And Mouse

The extracellular zona pellucida surrounds ovulated eggs and mediates gamete recognition that is essential for mammalian fertilization. Zonae matrices contain three (mouse) or four (human) glycoproteins (ZP1–4), but which protein binds sperm remains controversial. A defining characteristic of an essential zona ligand is sterility after genetic ablation. We have established transgenic mice expressing human ZP4 that form zonae pellucidae in the absence of mouse or human ZP2. Neither mouse nor human sperm bound to these ovulated eggs, and these female mice were sterile after in vivo insemination or natural mating. The same phenotype was observed with truncated ZP2 that lacks a restricted domain within ZP251–149. Chimeric human/mouse ZP2 isoforms expressed in transgenic mice and recombinant peptide bead assays confirmed that this region accounts for the taxon specificity observed in human–mouse gamete recognition. These observations in transgenic mice document that the ZP251–149 sperm-binding domain is necessary for human and mouse gamete recognition and penetration through the zona pellucida.

scholarly journals A Monoclonal Antibody to Human SP-10 Inhibits In Vitro the Binding of Human Sperm to Hamster Oolemma but Not to Human Zona Pellucida

2000 ◽  
Vol 62 (5) ◽  
pp. 1201-1208 ◽  
Author(s):  
Toshio Hamatani ◽  
Kiyoo Tanabe ◽  
Kiyoshi Kamei ◽  
Nozomi Sakai ◽  
Yurie Yamamoto ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Zona Pellucida ◽  
Human Sperm
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