MiR-1236抑制VprBP翻譯調(diào)節(jié)HIV-1復(fù)制研究及HIV-1感染后長期不發(fā)病中國人群基因多態(tài)性分析
[Abstract]:This thesis consists of two parts: 1) MiR-1236 inhibits VprBP translation and regulates HIV-1 replication. Monocytes are not susceptible to HIV-1 infection, but are susceptible to HIV-1 infection when they differentiate into dendritic cells or macrophages. Several mechanisms are involved in regulating the restriction of HIV-1 infection in monocytes. Intracellular miRNA can regulate HIV-1 infection by targeting HIV-1 genome or host gene transcription. In this work, we analyzed the expression profiles of genes and miRNA in monocytes and dendritic cells. We found that the transcription products of host protein VprBP (HIV-1Vpr binding protein) were inhibited by miR-1236 in monocytes. This promotes the restriction of monocytes on HIV-1. Transfection of miR-1236 into monocytes promoted VprBP translation and significantly increased viral infection. Exogenous synthetic miR-1236 mimics in dendritic cells inhibited the translation of VprBP and significantly reduced viral infection. Our results emphasize the restrictive role of miRNA in regulating the differentiation dependence of host cells on HIV-1 infection. Understanding the role of host miRNA in the regulation of HIV-1 infection is helpful to identify new antiviral protein targets and to develop new antiviral strategies. 2) Polymorphism analysis of Chinese population after HIV-1 infection. A small number of people who have been infected with HIV-1 for a long time (10 years) do not develop AIDS without treatment, and we call this part of the population long term non-diseased patients (long-term non-progressors,LTNP). The interaction of virus, immune and host genetic factors mediates this phenotype. A clear understanding of the key host genetic factors that regulate disease is helpful in finding a way to control HIV-1. We analyzed the genetic differences between host genes in LTNP and AIDS by exon capture and sequencing. It was found that there were differences in many single nucleotide polymorphisms (single mucleotide polymorphisms,SNP) between LTNP and AIDS, and some of the SNP genes were related to immune or HIV-1 regulation. The exact role of these SNP in the control of HIV-1 and the progression of AIDS disease needs further experimental analysis.
【學(xué)位授予單位】:蘇州大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:R512.91
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