目的:探讨新疆维吾尔族、汉族弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)患者Bcl-6、c-myc基因易位的差异及其临床意义。方法:采用荧光免疫原位杂交(FISH)方法,对233例DLBCL活体石蜡切片进行Bcl-6、c-myc基因检测。观察Bc...目的:探讨新疆维吾尔族、汉族弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)患者Bcl-6、c-myc基因易位的差异及其临床意义。方法:采用荧光免疫原位杂交(FISH)方法,对233例DLBCL活体石蜡切片进行Bcl-6、c-myc基因检测。观察Bcl-6、c-myc基因易位与DLBCL患者临床资料的关系,并对不同民族在不同亚型DLBCL中Bcl-6、c-myc基因易位的情况进行比较。结果:233例DLBCL中,Bcl-6基因重排51例,占21.89%;c-myc基因重排39例,占16.74%;Bcl-6基因易位的表达与患者年龄、性别、发病部位、临床分期和LDH水平无显著相关(P>0.05),而与民族、IPI评分、结外侵犯、B症状、DLBCL不同亚型和近期疗效有相关性(P<0.05);c-myc基因易位的表达与患者年龄、性别、发病部位、临床分期、LDH水平和DLBCL不同亚型无明显相关性(P>0.05),而与民族、IPI评分、结外侵犯、B症状和近期疗效有相关性(P<0.05);维、汉不同民族GCB中Bcl-6、c-myc基因易位比较差异均无统计学意义(P>0.05);维、汉不同民族非生发中心活化B细胞(non-GCB)中Bcl-6、c-myc基因易位比较差异有统计学意义(P<0.05)。结论:Bcl-6,C-myc基因易位的表达与维、汉不同民族、IPI评分、结外侵犯、B症状和近期疗效有相关性;维、汉民族non-GCB亚组中Bcl-6、c-myc基因易位存在差异。展开更多
AIM: To investigate the mutations of the 5' noncoding region of BCL-6 gene in Chinese patients with primary gastric lymphomas. METHODS: PCR and direct DNA sequencing were used to identify BCL-6 gene mutations in t...AIM: To investigate the mutations of the 5' noncoding region of BCL-6 gene in Chinese patients with primary gastric lymphomas. METHODS: PCR and direct DNA sequencing were used to identify BCL-6 gene mutations in the 5' noncoding region in 29 cases of gastric diffuse large B-cell lymphoma (DLBCL) and 18 cases of gastric mucosa-associated lymphoid tissue (MALT) lymphoma as well as 10 cases of reactive hyperplasia of lymph node (LRH). RESULTS: Six of 29 gastric DLBCLs (20.7%), 4 of 18 gastric MALT lymphomas (22.2%) and 1 of 10 LRHs(10%) were found to have mutations. All mutations were single-base substitutions and the frequency of single-base changes was 0.20×1O^(-2)-1.02×1O^(-2)per bp. CONCLUSION: Point mutations in the 5' noncoding region of BCL-6 gene are found in Chinese patients with primary gastric DLBCLs and MALT lymphomas, suggesting that they may, in some extent, participate in the pathogenesis of primary gastric DLBCLs and MALT lymphomas.展开更多
文摘目的:探讨新疆维吾尔族、汉族弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)患者Bcl-6、c-myc基因易位的差异及其临床意义。方法:采用荧光免疫原位杂交(FISH)方法,对233例DLBCL活体石蜡切片进行Bcl-6、c-myc基因检测。观察Bcl-6、c-myc基因易位与DLBCL患者临床资料的关系,并对不同民族在不同亚型DLBCL中Bcl-6、c-myc基因易位的情况进行比较。结果:233例DLBCL中,Bcl-6基因重排51例,占21.89%;c-myc基因重排39例,占16.74%;Bcl-6基因易位的表达与患者年龄、性别、发病部位、临床分期和LDH水平无显著相关(P>0.05),而与民族、IPI评分、结外侵犯、B症状、DLBCL不同亚型和近期疗效有相关性(P<0.05);c-myc基因易位的表达与患者年龄、性别、发病部位、临床分期、LDH水平和DLBCL不同亚型无明显相关性(P>0.05),而与民族、IPI评分、结外侵犯、B症状和近期疗效有相关性(P<0.05);维、汉不同民族GCB中Bcl-6、c-myc基因易位比较差异均无统计学意义(P>0.05);维、汉不同民族非生发中心活化B细胞(non-GCB)中Bcl-6、c-myc基因易位比较差异有统计学意义(P<0.05)。结论:Bcl-6,C-myc基因易位的表达与维、汉不同民族、IPI评分、结外侵犯、B症状和近期疗效有相关性;维、汉民族non-GCB亚组中Bcl-6、c-myc基因易位存在差异。
基金Supported by National Natural Science Foundation of China,No.39900065
文摘AIM: To investigate the mutations of the 5' noncoding region of BCL-6 gene in Chinese patients with primary gastric lymphomas. METHODS: PCR and direct DNA sequencing were used to identify BCL-6 gene mutations in the 5' noncoding region in 29 cases of gastric diffuse large B-cell lymphoma (DLBCL) and 18 cases of gastric mucosa-associated lymphoid tissue (MALT) lymphoma as well as 10 cases of reactive hyperplasia of lymph node (LRH). RESULTS: Six of 29 gastric DLBCLs (20.7%), 4 of 18 gastric MALT lymphomas (22.2%) and 1 of 10 LRHs(10%) were found to have mutations. All mutations were single-base substitutions and the frequency of single-base changes was 0.20×1O^(-2)-1.02×1O^(-2)per bp. CONCLUSION: Point mutations in the 5' noncoding region of BCL-6 gene are found in Chinese patients with primary gastric DLBCLs and MALT lymphomas, suggesting that they may, in some extent, participate in the pathogenesis of primary gastric DLBCLs and MALT lymphomas.
