title: Aberrant somatic hypermutation and expression of activation-induced cytidine deaminase mRNA in mediastinal large B-cell lymphoma.
abstract: To determine the possible role of aberrant somatic hypermutation (ASHM) and activation-induced cytidine deaminase (AID) expression in the pathogenesis of mediastinal large B-cell lymphoma (MBL), the mutational status of genes affected by ASHM, including c-MYC, PAX-5 and RhoH, was analysed, and the expression level of AID mRNA in tumour specimens from six patients with MBL was determined. Mutations in one or more genes and high expression of AID mRNA were detected in all the six cases of MBL. These results suggest that ASHM and AID expression may have a role in the pathogenesis of MBL.
authors.affiliation: 1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, H-1085 Budapest, Hungary.
authors.forename: Csaba
authors.initials: C
authors.lastname: Bödör
authors.forename: Agnes
authors.initials: A
authors.lastname: Bognár
authors.forename: Lilla
authors.initials: L
authors.lastname: Reiniger
authors.forename: Agota
authors.initials: A
authors.lastname: Szepesi
authors.forename: Erika
authors.initials: E
authors.lastname: Tóth
authors.forename: László
authors.initials: L
authors.lastname: Kopper
authors.forename: András
authors.initials: A
authors.lastname: Matolcsy
mesh_terms: D003564:Cytidine Deaminase / Q000096:biosynthesis / Q000235:genetics*; D004252:DNA Mutational Analysis; D004273:DNA, Neoplasm / Q000235:genetics; D004268:DNA-Binding Proteins / Q000235:genetics; D015870:Gene Expression; D016259:Genes, myc / Q000235:genetics; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000201:enzymology / Q000235:genetics*; D008479:Mediastinal Neoplasms / Q000201:enzymology / Q000235:genetics*; D009363:Neoplasm Proteins / Q000235:genetics; D051757:PAX5 Transcription Factor; D012333:RNA, Messenger / Q000235:genetics; D012334:RNA, Neoplasm / Q000235:genetics; D027041:Somatic Hypermutation, Immunoglobulin; D014157:Transcription Factors / Q000235:genetics; D020741:rho GTP-Binding Proteins / Q000235:genetics
chemical_list: D004273:DNA, Neoplasm; D004268:DNA-Binding Proteins; D009363:Neoplasm Proteins; D051757:PAX5 Transcription Factor; C497281:PAX5 protein, human; D012333:RNA, Messenger; D012334:RNA, Neoplasm; C447841:RhoH protein, human; D014157:Transcription Factors; D003564:Cytidine Deaminase; D020741:rho GTP-Binding Proteins