Gene Set: ZHAN_MULTIPLE_MYELOMA_SUBGROUPS

Standard name ZHAN_MULTIPLE_MYELOMA_SUBGROUPS
Systematic name M17405
Brief description Top genes up-regulated in MM4 vs MM1 subgroup of multiple myeloma samples.
Full description or abstract Bone marrow plasma cells (PCs) from 74 patients with newly diagnosed multiple myeloma (MM), 5 with monoclonal gammopathy of undetermined significance (MGUS), and 31 healthy volunteers (normal PCs) were purified by CD138(+) selection. Gene expression of purified PCs and 7 MM cell lines were profiled using high-density oligonucleotide microarrays interrogating about 6800 genes. On hierarchical clustering analysis, normal and MM PCs were differentiated and 4 distinct subgroups of MM (MM1, MM2, MM3, and MM4) were identified. The expression pattern of MM1 was similar to normal PCs and MGUS, whereas MM4 was similar to MM cell lines. Clinical parameters linked to poor prognosis, abnormal karyotype (P =.002) and high serum beta(2)-microglobulin levels (P =.0005), were most prevalent in MM4. Also, genes involved in DNA metabolism and cell cycle control were overexpressed in a comparison of MM1 and MM4. In addition, using chi(2) and Wilcoxon rank sum tests, 120 novel candidate disease genes were identified that discriminate normal and malignant PCs (P <.0001); many are involved in adhesion, apoptosis, cell cycle, drug resistance, growth arrest, oncogenesis, signaling, and transcription. A total of 156 genes, including FGFR3 and CCND1, exhibited highly elevated (spiked) expression in at least 4 of the 74 MM cases (range, 4-25 spikes). Elevated expression of these 2 genes was caused by the translocation t(4;14)(p16;q32) or t(11;14)(q13;q32). Thus, novel candidate MM disease genes have been identified using gene expression profiling and this profiling has led to the development of a gene-based classification system for MM.
Collection C2: curated gene sets
      CGP: chemical and genetic perturbations
Source publication Pubmed 11861292   Authors: Zhan F,Hardin J,Kordsmeier B,Bumm K,Zheng M,Tian E,Sanderson R,Yang Y,Wilson C,Zangari M,Anaissie E,Morris C,Muwalla F,van Rhee F,Fassas A,Crowley J,Tricot G,Barlogie B,Shaughnessy J Jr
Exact source Table 2
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(show 55 gene sets from the same authors)
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Organism Homo sapiens
Contributed by Kevin Vogelsang (MSigDB Team)
Source platform AFFY_HuGene
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Version history 3.0: Renamed from ZHAN_MULTIPLE_MYELOMA_SUBCLASSES_DIFF

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