通过基因表达造型鉴定识别的分散型大B细胞淋巴瘤的不同类型
A A Alizadeh1, M B Eisen, R E Davis
1Department of Biochemistry, Stanford University School of Medicine, California 94305, USA.
Nature
|February 17, 2000
概括
扩散性大B细胞淋巴瘤 (DLBCL) 呈现出分子异质性. 基因表达分析确定了两种亚型,生殖中心B细胞类DLBCL和激活的B细胞类DLBCL,具有不同的生存结果.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 扩散性大B细胞淋巴瘤 (DLBCL) 是最常见的非霍奇金淋巴瘤.
- 对于DLBCL患者的临床结果是高度可变的,这表明潜在的分子差异.
- 以前的分类并没有完全捕捉到这种异质性.
研究的目的:
- 为了研究DLBCL瘤的分子异质性.
- 根据基因表达特征识别DLBCL的不同分子亚型.
- 为了将分子亚型与临床结果相关联,特别是患者的生存率.
主要方法:
- 利用DNA微阵列进行DLBCL瘤的系统基因表达概况.
- 分析基因表达模式以识别不同的分子特征.
- 与患者生存数据相关联的确定分子亚型.
主要成果:
- 确定了DLBCL的两个不同的分子亚型:生殖中心B细胞类DLBCL和激活的B细胞类DLBCL.
- 生殖中心B细胞类DLBCL瘤表达了生殖中心B细胞特征的基因.
- 激活的B细胞样DLBCL瘤表达了与体外B细胞激活相关的基因.
- 与激活的B细胞样DLBCL相比,患有生殖中心B细胞样DLBCL的患者的整体存活率明显更好.
结论:
- 基因表达概况显示DLBCL中的显著分子异质性.
- 已经确定了DLBCL的两种临床相关的亚型,生殖中心B细胞类和激活的B细胞类.
- 基于基因表达的分子分类可以预测患者的生存率并识别不同的癌症亚型.
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