【摘要】 目的:应用寡核苷酸基因芯片技术,研究家族聚集性HBV感染者外周血单个核细胞(PBMC)免疫相关基因的表达谱。方法:在一聚集性HBV感染家族中,选取患者5例和患者的正常配偶4例,提取PBMC中的RNA,与涵盖2.2万个EST的寡核苷酸表达谱基因芯片U133A2.0杂交,通过Affymetrix扫描仪和DNT分析软件比较患病组与对照组PBMC免疫相关基因的的表达谱,获得基因的相对表达比值。结果:在2.2万个EST中,初筛出24个免疫相关差异表达基因,7个基因表达上调,17个表达下调。上调的主要是与适应性免疫相关的基因,下调的主要是与固有免疫相关的基因。结论:宿主感染HBV后,可改变其免疫基因表达,固有免疫功能的障碍可能是HBV感染慢性化的主要原因。更多还原

【Abstract】 AIM: To investigate peripheral blood mononuclear cells (PBMCs) immune-related gene expression profile in patients with chronic virus hepatitis B(CHB) by oligonucleotide gene array technique. METHODS: PBMCs were collected from the members of a family of clustering hepatitis B virus (HBV) infection including 5 CHB patients and 4 healthy spouses and RNA prepared from PBMCs was hybridized to high-density oligonucleotide arrays(HG-U133A 2.0 Human Gene Chips, Affymetrix), covering the expression of 22 000 human ESTs. Primary scanned image was analyzed with DNT software package. RESULTS: Out of the 22 000 ESTs, 24 different immune-related genes were identified. Among the 24 genes, 7 genes showed increased expression and 17 genes showed decreased expression in CHB compared with those in healthy spouses. The up-regulated genes were mainly associated with adaptive immunity, while the down-regulated genes were associated with innate immunity. CONCLUSION: Our findings suggest that HBV infection alters a broad range of immunity genes expression and innate immunity-associated genes are important in the defense against HBV chronic infection.更多还原