Human Gene Set: SHIN_B_CELL_LYMPHOMA_CLUSTER_2

For the Mouse gene set with the same name, see SHIN_B_CELL_LYMPHOMA_CLUSTER_2

Standard name SHIN_B_CELL_LYMPHOMA_CLUSTER_2
Systematic name M1384
Brief description Cluster 2 of genes distinguishing among different B lymphocyte neoplasms.
Full description or abstract Aside from Myc-activating translocations characteristic of plasmacytomas (PCT), little is known about genetic factors and signaling pathways responsible for the development of spontaneous B-cell lineage lymphomas of mice. Here, we characterized the transcriptional profiles of PCT, centroblastic diffuse large B-cell lymphomas (CBL), and high-grade splenic marginal zone B-cell lymphoma (MZL++) using high-throughput quantitative reverse transcription-PCR. Expression profiles of CBL and MZL++ were strikingly similar and quite unlike that of PCT. Among the genes expressed at significantly higher levels by PCT were a number involved in NOTCH signaling, a finding supported by gene set enrichment analyses of microarray data. To investigate the importance of this pathway, NOTCH signaling was blocked in PCT cell lines by treatment with a gamma-secretase inhibitor (GSI) or transduction of a dominant-negative mutant of MAML1. These treatments resulted in reduced expression of NOTCH transcriptional targets in association with impaired proliferation and increased apoptosis. GSI treatment of transformed plasma cells in a primary PCT also induced apoptosis. These results integrate NOTCH activation with oncogenic signaling pathways downstream of translocated Myc in the pathogenesis of mouse PCT, two signaling pathways also implicated in development of human multiple myeloma and T-cell lymphoblastic lymphoma.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 19010892   Authors: Shin DM,Shaffer DJ,Wang H,Roopenian DC,Morse HC 3rd
Exact source Table 2S: Cluster = 2
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Source species Mus musculus
Contributed by Jessica Robertson (MSigDB Team)
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identifier namespace		 MOUSE_GENE_SYMBOL
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Version history 3.1: First introduced

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