title: Gene expression profiling of lymphoid malignancies.
abstract: Comprehensive gene expression profiling using DNA microarrays is providing a molecular classification of cancer into disease categories that are homogeneous with respect to pathogenesis and clinical behavior. Gene expression profiling revealed that diffuse large B cell lymphoma (DLBCL) consists of at least two molecularly distinct diseases that are derived from distinct stages of B cell differentiation and have strikingly different clinical outcomes. By contrast, chronic lymphocytic leukemia (CLL) was found to be a single disease defined by a characteristic gene expression signature. Nonetheless, gene expression profiling distinguished two clinically divergent CLL subtypes and provided evidence that signaling through the B cell antigen receptor may play a role in the clinically aggressive subtype. Gene expression analysis also illuminated the mechanism of lymphomagenesis caused by BCL-6 translocations and provided evidence that the NF-kappa B signaling pathway is a new molecular therapeutic target in DLBCL.
authors.affiliation: Metabolism Branch, Center for Cancer Research, National Cancer Institute, 9000 Rockville Pike, Bethesda, Maryland 20892, USA. lstaudt@mail.nih.gov
authors.forename: Louis M
authors.initials: LM
authors.lastname: Staudt
mesh_terms: D004268:DNA-Binding Proteins / Q000235:genetics; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic / Q000502:physiology; D006801:Humans; D007938:Leukemia / Q000235:genetics*; D008223:Lymphoma / Q000235:genetics*; D016328:NF-kappa B / Q000235:genetics; D020411:Oligonucleotide Array Sequence Analysis; D011518:Proto-Oncogene Proteins / Q000235:genetics; D051560:Proto-Oncogene Proteins c-bcl-6; D015398:Signal Transduction / Q000235:genetics; D014157:Transcription Factors / Q000235:genetics; D014178:Translocation, Genetic / Q000235:genetics
chemical_list: D004268:DNA-Binding Proteins; D016328:NF-kappa B; D011518:Proto-Oncogene Proteins; D051560:Proto-Oncogene Proteins c-bcl-6; D014157:Transcription Factors