基于互信息基因調(diào)控網(wǎng)絡(luò)構(gòu)建及其在甲狀腺腫瘤基因分析中應(yīng)用的研究
[Abstract]:With the rapid development of life science and computer science, life science and computer science combine to form a new subject, bioinformatics. Bioinformatics analyzes and explains biological secrets by studying the collection, processing, storage and dissemination of biological information. However, it is necessary to study the interaction and mechanism of all components (gene mRNAs, proteins, etc.) in biological information systems from a systematic perspective. The interaction or causality between genes in the processes of heredity, development, evolution and disease can be summarized as gene regulation, which is an important subject in bioinformatics. The study of gene regulation network can help us to understand and understand the causal relationship between gene development and gene regulation process, and can help us to further study biological function and behavior. In this study, we found that the study of the regulatory network of diseased and non-diseased genes can help us to find the genes closely related to disease and the level of gene expression, and thus to find the cause of the disease at the gene level. Through analysis, we try to treat the gene by medicine or physical method, and achieve the effect of treating disease. However, the idea of constructing regulatory networks based on gene expression data is not of great biological significance. Therefore, this paper studies the inclusion of RNA-Seq data and reasonable biological information into the process of network construction based on mutual information. Through the rational use of a wide range of data to make the constructed network has stronger biological significance, and in the process of disease gene differential screening, not only the use of simple genetic differential screening algorithm for differential screening, Genetic diversity screening was carried out by introducing Bootstrap self-help method. Finally, this idea is applied to thyroid tumor data to explore more meaningful and accurate information, which can provide scientific advice for prediction and treatment of thyroid diseases. The research process of this paper is as follows: (1) data acquisition. The RNA-Seq data and miRNA data of thyroid tumor were obtained from TCGA platform and processed. (2) screening the difference gene between normal and diseased RNA-Seq data. To find the target gene of miRNA. (3) to construct the BC3NET gene regulatory network based on mutual information, and divide the gene regulation network into modules. (4) verify and analyze the subnet module. The conclusion is constructive to predict and treat thyroid diseases. (5) A set of feasible methods or ideas from constructing gene regulatory network to predicting and treating thyroid diseases are formed. In the future work, we can also add methylation data to gene Card data to make our gene regulatory network more valuable. By adding more biological information, we can provide constructive advice and basis for prevention and treatment of disease at molecular level.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:R736.1
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