论文说明
声明
CONTENTS
摘要
Abstract
Abbreviations
Chapter 1.Introduction
1.1 Somatostatin and its signaling
1.2 Somatostatin and Testis
1.3 Somatostatin and FSH in testis
1.4 Presence of somatostatin receptors on Granulosa cell
1.5 Interaction of FSH with SSTR2 in the ovary
1.6 Constitutive activity of SSTR2 and SSTR5
1.7 Conclusion and hypothesis
Chapter 2-Somatostatin and its receptors:functional regulation in the development of mice Sertoli cells
2.1 Material and Methods
2.1.1 Animals
2.1.2 Chemicals
2.1.3 Cell Isolation and Culture
2.1.4 RNA extraction and Real-time PCR
2.1.5 Immunohistochemistry (IHC) of somatostatin receptors in mice testes
2.1.6 Immunocytochemistry
2.1.7 cAMP measurement
2.1.8 Cell Cycle Analysis
2.1.9 Apoptotic activity
2.1.10 Western Blot analysis
2.1.11 Statistical analysis
2.2.Results
2.2.1.Expression of SSTR receptors
2.2.2.The expression of somatostatin receptors subtypes in different developmental stages of Sertoli cells
2.2.3.Forskolin-induced intracellular cAMP accumulation in SRIF14 treated-mice Sertoli cells
2.2.4.Homologous regulation of SRIF receptors
2.2.5.SRIF14 blocked cellular growth in mice Sertoli cells
2.2.6.SRIF increased apoptotic cells in mice Sertoli cell culture
2.2.7.Cell cycle and apoptotic protein expressions
2.2.8.SRIF14 down regulated the igfl and kitl mRNA expression in mice Sertoli cells
2.3.Discussion
Chapter 3.Constitutive activation of Somatostatin receptor 2 and 5 and their interaction with follicle-stimulating hormone in regulating immature mouse Sertoli cells apoptosis
3.1 Material and Methods
3.1.1.Isolation of mice Sertoli cells (SCs)
3.1.2 Construction of recombinant vectors and transfection
3.1.3 Quantitative Polymerase chain reaction
3.1.4 cAMP measurements
3.1.5 Assessment of cell Apoptosis
3.1.6 Western blot
3.1.7 Statistical analysis
3.2 Results
3.2.1 Selective knock down of SSTR2 and SSTR5 in mouse SCs
3.2.2 Selective knockdown of SSTR2 and SSTR5 regulates ERK1/ERK2 signaling
3.2.3 SSTR2 and SSTR5 are important for their constitutive and FSH-induced regulation on SCs apoptosis
3.2.4 Effect of selective knockdown of SSTR2 and SSTR5 on basal and FSH-induced apoptotic regulatory proteins
3.3 Discussion
Chapter 4.Constitutive and follicle-stimulating hormone-induced action of somatostatin receptor-2 on regulation of apopotosis and steroidogenesis in bovine granulosa cells
4.1 Material and Methods
4.1.1 Isolation and culture of bovine GCs
4.1.2 Reverse transcription-polymerase chain reaction (RT-PCR) for SSTR2 expression
4.1.3 Construction and transfection of recombinant ssRNA-1 and ssRNAi-2 vectors for SSTR2 and experimental design
4.1.4 Real time PCR for SSTR2 and associative genes
4.1.5 Measurement of estradiol and progesterone levels
4.1.6 Intracellular cAMP measurement
4.1.7 Cell apoptosis and proliferation detection
4.1.8 Western blot assay
4.1.9 Statistical analysis
4.2 Results
4.2.1 Expression of SSTR2 in bovine GCs
4.2.2 Transfection efficiency of recombinant vectors and expression in bovine GCs
4.2.3 Follicle-stimulating hormone (FSH) regulated the SSTR2 protein expression in bovine GCs
4.2.4 Treatment with FSH augmented progesterone production decreased apoptosis and increased cell proliferation in ssRNAi-2 transfected cells
4.2.5 SSTR2 silencing increased basal and FSH-induced progesterone production
4.3 Discussion
5 Conclusion and Future Prospects
References
7.List of Figures
8 List of Tables
Acknowledgement
10 Scientific Contributions