Cellular, biochemical and molecular mechanisms regulating oocyte maturation

N Dekel - Molecular and cellular endocrinology, 2005 - Elsevier
The original model for regulation of oocyte maturation proposed by us in 1978 postulated
that gap junction-mediated transmission of cAMP from the follicle cells to the oocyte inhibits …

Regulation of mouse oocyte maturation: effect of elevating cumulus cell cAMP on oocyte cAMP levels

EA Bornslaeger, RM Schultz - Biology of reproduction, 1985 - academic.oup.com
We have reexamined the possibility that cumulus cell cAMP can enter the oocyte via the gap
junctions connecting the two cell types (Schultz et al., 1983a). Since our recent results …

Gonadotropin‐induced murine oocyte maturation in vivo is not associated with decreased cyclic adenosine monophosphate in the oocyte‐cumulus cell complex

JJ Eppig, SM Downs - Gamete research, 1988 - Wiley Online Library
The cyclic adenosine monophosphate (cAMP) content of intact oocyte‐cumulus cell
complexes at various times after the induction of oocyte maturation in mice in vivo was …

Regulation of oocyte maturation in the mouse: possible roles of intercellular communication, cAMP, and testosterone

RM Schultz, RR Montgomery, PF Ward-Bailey… - Developmental …, 1983 - Elsevier
Experiments were performed to determine if elevation of cumulus cell cAMP results in an
increase in mouse oocyte cAMP while the heterologous gap junctions were intact. Both …

Dissociation between the inhibitory and the stimulatory action of cAMP on maturation of rat oocytes

N Dekel, D Galiani, I Sherizly - Molecular and cellular endocrinology, 1988 - Elsevier
The possible mediatory role of cAMP in the induction of oocyte maturation by luteinizing
hormone (LH) is not yet clear since evidence for both inhibitory and stimulatory actions of the …

[PDF][PDF] The molecular mechanisms of oocyte maturation and early embryonic development are unveiling new insights into reproductive medicine.

O Heikinheimo, WE Gibbons - Molecular Human Reproduction, 1998 - researchgate.net
The purpose of the present review is to outline the current understanding on the molecular
mechanisms governing various stages of oocyte maturation, transition from maternal to …

Meiotic arrest in incompetent rat oocytes is not regulated by cAMP

S Goren, Y Piontkewitz, N Dekel - Developmental Biology, 1994 - Elsevier
Fully grown, but not growing, mammalian oocytes spontaneously resume meiosis in vitro.
Resumption of meiosis, also known as oocyte maturation, is associated with a drop in …

Meiotic arrest of oocytes depends on cell-to-cell communication in the ovarian follicle

I Edry, S Sela-Abramovich, N Dekel - Molecular and Cellular …, 2006 - Elsevier
The source of the inhibitory levels of cAMP that maintain oocytes meiotically arrested is
under controversy. A model for regulation of the meiotic division that suggests the transfer of …

Inhibition of oocyte maturation in the mouse: participation of cAMP, steroid hormones, and a putative maturation-inhibitory factor

JJ Eppig, RR Freter, PF Ward-Bailey, RM Schultz - Developmental biology, 1983 - Elsevier
The hypothesis that cumulus cells inhibit oocyte maturation by a cAMP-dependent process
was tested (RM Schultz, R. Montgomery, PF Ward-Bailey, and JJ Eppig (1983). Dev. Biol …

Disruption of gap junctional communication within the ovarian follicle induces oocyte maturation

S Sela-Abramovich, I Edry, D Galiani, N Nevo… - …, 2006 - academic.oup.com
Meiotically arrested mammalian oocytes are stimulated to resume meiosis by LH. This
response, which can be reversed by elevation of intraoocyte cAMP levels, is associated with …