Human Gene Set: QI_PLASMACYTOMA_UP

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

Standard name QI_PLASMACYTOMA_UP
Systematic name M1851
Brief description Up-regulated genes that best disciminate plasmablastic plasmacytoma from plasmacytic plasmacytoma tumors.
Full description or abstract We have compared histologic features and gene expression profiles of newly identified plasmacytomas from NFS.V(+) congenic mice with plasmacytomas of IL6 transgenic, Fasl mutant, and SJL-beta2M(-/-) mice. NFS.V(+) tumors comprised an overlapping morphologic spectrum of high-grade/anaplastic, intermediate-grade/plasmablastic, and low-grade/plasmacytic cases with similarities to subsets of human multiple myeloma and plasmacytoma. Microarray and immunohistochemical analyses of genes expressed by the most prevalent tumors, plasmablastic plasmacytomas, showed them to be most closely related to immunoblastic lymphomas, less so to plasmacytomas of Fasl mutant and SJL mice, and least to plasmacytic plasmacytomas of IL6 transgenic mice. Plasmablastic tumors seemed to develop in an inflammatory environment associated with gene signatures of T cells, natural killer cells, and macrophages not seen with plasmacytic plasmacytomas. Plasmablastic plasmacytomas from NFS.V(+) and SJL-beta2M(-/-) mice did not have structural alterations in Myc or T(12;15) translocations and did not express Myc at high levels, regular features of transgenic and pristane-induced plasmacytomas. These findings imply that, as for human multiple myeloma, Myc-independent routes of transformation contribute to the pathogenesis of these tumors. These findings suggest that plasma cell neoplasms of mice and humans exhibit similar degrees of complexity. Mouse plasmacytomas, previously considered to be homogeneous, may thus be as diverse as their human counterparts with respect to oncogenic mechanisms of plasma cell transformation. Selecting specific types of mouse plasmacytomas that relate most closely to subtypes of human multiple myeloma may provide new opportunities for preclinical testing of drugs for treatment of the human disease.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 17363561   Authors: Qi CF,Zhou JX,Lee CH,Naghashfar Z,Xiang S,Kovalchuk AL,Fredrickson TN,Hartley JW,Roopenian DC,Davidson WF,Janz S,Morse HC 3rd
Exact source Table 2: Plasmablastic
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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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