Book contents
- Frontmatter
- Dedication
- Contents
- List of Contributors
- Preface
- Section 1 Historical perspective
- Section 2 Life cycle
- Section 3 Developmental biology
- 8 Structural basis for oocyte–granulosa cell interactions
- 9 Differential gene expression mediated by oocyte–granulosa cell communication
- 10 Hormones and growth factors in the regulation of oocyte maturation
- 11 Getting into and out of oocyte maturation
- 12 Chromosome behavior and spindle formation in mammalian oocytes
- 13 Transcription, accumulation, storage, recruitment, and degradation of maternal mRNA in mammalian oocytes
- 14 Setting the stage for fertilization: transcriptome and maternal factors
- 15 Egg activation: initiation and decoding of Ca2+ signaling
- 16 In vitro growth and differentiation of oocytes
- 17 Metabolism of the follicle and oocyte in vivo and in vitro
- 18 Improving oocyte maturation in vitro
- Section 4 Imprinting and reprogramming
- Section 5 Pathology
- Section 6 Technology and clinical medicine
- Index
- References
10 - Hormones and growth factors in the regulation of oocyte maturation
from Section 3 - Developmental biology
Published online by Cambridge University Press: 05 October 2013
- Frontmatter
- Dedication
- Contents
- List of Contributors
- Preface
- Section 1 Historical perspective
- Section 2 Life cycle
- Section 3 Developmental biology
- 8 Structural basis for oocyte–granulosa cell interactions
- 9 Differential gene expression mediated by oocyte–granulosa cell communication
- 10 Hormones and growth factors in the regulation of oocyte maturation
- 11 Getting into and out of oocyte maturation
- 12 Chromosome behavior and spindle formation in mammalian oocytes
- 13 Transcription, accumulation, storage, recruitment, and degradation of maternal mRNA in mammalian oocytes
- 14 Setting the stage for fertilization: transcriptome and maternal factors
- 15 Egg activation: initiation and decoding of Ca2+ signaling
- 16 In vitro growth and differentiation of oocytes
- 17 Metabolism of the follicle and oocyte in vivo and in vitro
- 18 Improving oocyte maturation in vitro
- Section 4 Imprinting and reprogramming
- Section 5 Pathology
- Section 6 Technology and clinical medicine
- Index
- References
Summary
Introduction
Oocyte maturation is the process by which a fully grown oocyte completes the developmental program initiated during fetal life to become a fertilizable egg. It has long been known that this process is triggered by endocrine signals generated by the pituitary. However, only recently has it become clear that the extensive reprogramming of the oocyte and somatic cells associated with ovulation also requires local paracrine and autocrine signals. These local regulations functioning within the periovulatory follicle will be the focus of this chapter.
Oocyte development and the follicle environment
A unique property of the female germ cell is the specialized meiotic cell cycle. Female meiosis initiates in the fetal gonad but will be completed only at the time the follicle is preparing for ovulation [1]. Thus, completion of meiosis may take more than 40 years in a woman. Although recent data in mouse and human have challenged the dogma that meiosis initiation does not occur in the postnatal life [2], the most widely held view is that a neonatal ovary is endowed with a finite number of oocytes that have completed the meiotic prophase but are held in a suspended state of the cell cycle, termed the dictyate state or germinal vesicle (GV) stage.
- Type
- Chapter
- Information
- Biology and Pathology of the OocyteRole in Fertility, Medicine and Nuclear Reprograming, pp. 109 - 118Publisher: Cambridge University PressPrint publication year: 2013
References
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