斑馬魚Rictor基因的克
[Abstract]:MTORC2 belongs to the PTEN / PI3K / AKT / mTOR signaling pathway, especially the overexpression of mTOR signaling pathway is closely related to the occurrence and development of tumor, and is an important target of tumor therapy. In recent years, with the emergence of such small molecular inhibitors in clinic, people are more and more interested in it. More and more reports about Rictor and mTORC2. Rictor is a protein of mTORC2 scaffold. The common and other five proteins maintain the stability of mTORC2. MTORC2 plays an important role in many important physiological processes, including cell survival, metabolism, proliferation, cytoskeleton synthesis, etc. But there are more unknown parts of mTORC2 than mTORC1. For example, what are the upstream signaling pathways of mTORC2, and how do they activate the Rictor of mTORC2 to maintain the stability of mTORC2? What role do you play in mTORC2? At present, this part is still blank, there is no conclusive evidence to consult the relevant literature, these are very interesting topics. Using zebrafish model organisms to study the gene function of Rictor, we first use bioinformatics method to prove that the zebrafish Rictor gene is highly conserved in evolution and belongs to vertebrate conservative gene. It provides theoretical support and foreshadowing for the further study of hematopoietic system and hematopoietic microenvironment. Whole embryo in situ hybridization is widely used in gene expression profiling, which is an important means to study the development of zebrafish and explore the function of related genes. In this study, antisense rictor probes were designed and synthesized from zebrafish. The expression of rictor during the early development of zebrafish (in time and space) was analyzed by in situ hybridization of whole embryo. The expression of nerve tube and muscle ganglion. After inhibition of Zrictor by antisense morpholine oligonucleotide (MO), it was found that a small amount of pericardial effusion and body curvature (mainly in the tail) appeared in the embryos of zebrafish in mo injection group, and showed a certain developmental retardation at the early stage of development. Before and after microinjection, there were no significant changes in marker and cardiac marker in the blood system, but there was a slight change of Fli-1 in internode vessels and a decrease in the expression of (myod) in muscle. The distribution and expression of hemoglobin in zebrafish embryos with pericardial effusion were detected by o-staining. Is Rictor an appropriate target when it is advocated that small molecular inhibitors work only on tumors without affecting normal tissue function? We have confirmed in vivo the effect of rictor suppression by MO on normal tissue and hematopoietic system, which may be a new target for clinical therapy of hematologic diseases and tumors.
【學(xué)位授予單位】:華中科技大學(xué)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2012
【分類號】:R-331
【共引文獻(xiàn)】
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