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Oocyte Physiology and Development in Domestic Animals

Rebecca Krisher (Editor)
ISBN: 978-0-470-95920-6
248 pages
May 2013, Wiley-Blackwell
Oocyte Physiology and Development in Domestic Animals (0470959207) cover image
Oocyte Physiology and Development in Domestic Animals reviews the most recent advances in the research of physiological and biochemical mechanisms underlying oocyte growth and development, providing readers with the fundamental understanding of these key processes and summarizing this important field of research. The book covers multiple molecular and physiological mechanisms including initiation of oocyte growth during folliculogenesis and in vitro follicle culture to support oocyte competence, that are critical to health and quality. Physiological process ranging from gene expression to metabolism will be covered with an eye toward using these factors to uncover biomarkers that will further advance the field. In addition, the text looks at the effects of in vitro maturation environments on oocyte quality and developmental outcome.
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Contributors xi

Preface xiii

Acknowledgments xv

Chapter 1 Oocyte Development before and during Folliculogenesis 1
Melissa Pepling

1.1 Introduction 1

1.2 Germ Cell Cyst and Ovigerous Cord Formation 1

1.3 Meiotic Entry and Progression 4

1.4 Follicle Formation 6

1.5 Follicle Development 9

1.6 Steroid Hormone Signaling in Oocyte Development 13

1.7 Summary 14

References 14

Chapter 2 The In Vitro Culture of Ovarian Follicles: A Brief History and Current Considerations 21
Bahar Uslu and Joshua Johnson

2.1 Introduction 21

2.2 A Brief Historical Review of In Vitro Follicle Culture 23

2.3 State-of-the-Art In Vitro Follicle Culture 24

2.4 The Future of Ovarian Follicle Culture 28

Acknowledgments 29

References 29

Chapter 3 Regulation of Oocyte Meiotic Resumption by Somatic Cells 35
Masayuki Shimada

3.1 Meiotic Resumption Is Negatively Regulated in a cAMP-Dependent Manner 35

3.2 The Regulation of cAMP Level in Mouse Oocytes 37

3.3 The Expression and Roles of PDEs in both Cumulus Cells and Oocytes in Domestic Animals 38

3.4 Closure of Gap Junctional Communication 39

3.5 How to Activate the ERK1/2 Pathway in Cumulus Cells of COC 43

3.6 ERK1/2 in Cumulus Cells Is Required for Meiotic Resumption 45

3.7 Dynamic Changes of Kinase Activities within Oocytes 47

3.8 Conclusion 49

References 49

Chapter 4 Oocyte-Secreted Factors in Domestic Animals 55
Jeremy G. Thompson, David G. Mottershead, and Robert B. Gilchrist

4.1 Introduction 55

4.2 Historical Background 56

4.3 Localization and Specificity 57

4.4 Structure and Genetic Diversity of Gdf9 and Bmp15 58

4.5 Signalling Mechanisms of Gdf9 and Bmp15 60

4.6 Roles of Oocyte-Secreted Factors 61

4.7 Manipulation and Use in Reproductive Technologies 64

4.8 Concluding Remarks 65

References 66

Chapter 5 MicroRNAs in Oocyte Physiology and Development 71
Dawit Tesfaye, Md M. Hossain, and Karl Schellander

5.1 Introduction 71

5.2 Biogenesis of miRNA 71

5.3 Recognition and Post-Transcriptional Regulation of Target mRNA by miRNA 73

5.4 miRNA in Germ Cell Differentiation and Oogenesis 74

5.5 Expression and Regulation of miRNA in Oocyte Development 75

5.6 miRNAs in Oocyte Maturation and Competence 77

5.7 miRNAs as Temporal Regulatory Cascades of Maternal mRNA Translation 78

5.8 miRNAs in Oocyte Development in Relation to Endocrine Control 79

5.9 miRNA Regulation of Epigenetic Mechanisms in the Oocyte 79

5.10 Strategic Approaches and Challenges to Study the Role of miRNAs in Oocytes 80

5.11 Concluding Remarks 81

References 81

Chapter 6 Bovine Oocyte Gene Expression: Identification of Functional Regulators of Early Embryogenesis 85
Swamy K. Tripurani, Jianbo Yao, and George W. Smith

6.1 Introduction 85

6.2 Potential Contribution of Oocyte-Specific Transcriptional and Post-Transcriptional Regulators to Bovine Oocyte Competence: Available Evidence and Gaps in Knowledge 87

6.3 Maternal Oocyte-Derived Factors Required Specifically for Early Embryogenesis 94

6.4 Functional Genomics Studies of Bovine Oocyte Competence and Early Embryogenesis: Identification of Novel Mediators 99

6.5 Conclusions 104

References 105

Chapter 7 Epigenetic Modifications during Mammalian Oocyte Growth and Meiotic Progression 111
Claudia Baumann, Maria M. Viveiros, and Rabindranath De La Fuente

7.1 Introduction 111

7.2 Establishment of Epigenetic Modifications during Postnatal Oocyte Growth 112

7.3 Establishment and Maintenance of DNA Methylation during Oocyte Growth 114

7.4 Large-Scale Chromatin Remodeling during Meiotic Division 117

7.5 Environmental Effects Adversely Influencing the Female Gamete 127

7.6 Chromosome-microtubule Interactions in the Mammalian Oocyte 130

7.7 Conclusion 133

References 134

Chapter 8 Oocyte Calcium Homeostasis 145
Zoltan Machaty

8.1 Significance of Ca2+ 145

8.2 Signaling by Ca2+ 146

8.3 Ca2+ Signaling in Oocytes 150

8.4 Summary 159

References 159

Chapter 9 Oocyte Metabolism and Its Relationship to Developmental Competence 165
Rebecca L. Krisher and Jason R. Herrick

9.1 Introduction 165

9.2 Energy Substrates, In Vivo and In Vitro 167

9.3 Limitations of Oocyte Metabolism Assessment 169

9.4 Mitochondrial Function in the Oocyte 170

9.5 Cattle Oocyte Metabolism 171

9.6 Pig Oocyte Metabolism 173

9.7 Mouse Oocyte Metabolism 173

9.8 Oocyte Metabolism in Other Species 174

9.9 Oocyte Metabolism of Fatty Acids 174

9.10 Oocyte Metabolism Controls Meiosis: A View across Species 176

9.11 Oocyte Metabolism and Redox Balance 178

9.12 The Relationship between Oocyte Metabolism and Oocyte Quality 179

9.13 Maternal Diet and Disease Can Alter Oocyte Metabolism 180

9.14 Oocytes and the Warburg Effect 181

9.15 Conclusions 181

References 182

Chapter 10 Screening for Oocyte Competence 191
Marc-Andr´e Sirard and Mourad Assidi

10.1 Introduction 191

10.2 Concept of Oocyte Competence 191

10.3 Influence of Follicular Parameters on Oocyte Competence 194

10.4 Morphological Changes of the COC Associated with Competence 196

10.5 Biochemical Changes within the COC Associated with Competence 196

10.6 The Use of Coasting to Induce Competence in Large Mammals 197

10.7 The Use of Genomic/Gene Expression in Follicular Cells to Assess Oocyte Competence 198

10.8 The Use of Genomic/Gene Expression in Cumulus Cells to Assess Oocyte Competence 199

10.9 Signaling Pathways Involved in Competence Stimulation 201

10.10 Conclusion 201

References 202

Chapter 11 In Vitro Maturation Environment Affects Developmental Outcome 207
Pat Lonergan

11.1 Introduction 207

11.2 Oocyte Maturation in Vivo 208

11.3 In Vitro Embryo Production 209

11.4 Improving Oocyte Competence before Removal from the Follicle 211

11.5 Improving Oocyte Competence after Removal from the Follicle 212

11.6 Effect of Oocyte Environment on Embryo Gene Expression 213

11.7 Use of IVM in Practice in Cattle 214

11.8 Long-Term Consequences of in Vitro Maturation 215

11.9 Concluding Comments 216

References 216

Abbreviations 219

Index 225

Color plate is located between pages 144 and 145.

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Rebecca L. Krisher is Research Director at the National Foundation of Fertility Research.

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