Print Email Facebook Twitter Immunoglobulin V(H) gene sequence analysis of spontaneous murine immunoglobulin secreting B-cell tumours with clinical features of human disease Title Immunoglobulin V(H) gene sequence analysis of spontaneous murine immunoglobulin secreting B-cell tumours with clinical features of human disease Author Zhu, D. van Arkel, C. King, C.A. van Meirvenne, S. de Greef, C. Thielemans, K. Radl, J. Stevenson, F.K. TNO Preventie en Gezondheid Publication year 1998 Abstract The 5T series of multiple myelomas (MM) and Waldenstrsom's macroglobulinaemia-like lymphomas (WM), which developed spontaneously in ageing mice of the C57BL/KaLwRij strain, shows clinical and biological features that closely resemble their corresponding human diseases. In order to compare the patterns of somatic mutation in V(H) genes of mouse tumours with those of human counterparts, we have determined and analysed sequences of immunoglobulin V(H) genes in five cases of murine MM, two of WM and one of biclonal benign monoclonal gammopathy (BMG). Four of five MM and 2/2 WM cases used V(H) genes of the large J558 family; one MM used a gene of the VGAM3.8 family, and both clones of the BMG used genes of the 36-60 family. N-region insertions were observed in all cases, but D-segment genes were only identified in 6/9 cases, which were all from the D-SP family and translated in reading frame 3. Compared with human MM, in which the V(H) genes have been found to be consistently hypermutated (mean% ± SD = 8.8 ± 3.2), the degree of somatic mutation in the murine tumours was significantly lower (mean% ± SD=2.9 ± 2.3). There was no significant evidence of clustering of replacement mutations in complementarity determining regions (CDR), a feature considered to be characteristic of antigen-selected sequences. However, one clone of the biclonal BMG case showed intraclonal variation, a feature described in some cases of human BMG. These results indicate that murine V(H) genes in mature tumours differ from human counterparts in the level and distribution of somatic mutations, but support the concept that BMG may be distinct from MM. Subject HealthC57BL mouseWaldenstroem macroglobulinemiaAmino Acid SequenceAnimalsB-LymphocytesBase SequenceBlood Protein DisordersGenes, ImmunoglobulinHumansMiceMice, Inbred C57BLMolecular Sequence DataMonoclonal Gammopathies, BenignMultiple MyelomaPolymerase Chain ReactionSpecies SpecificityTumor Cells, CulturedWaldenstrom Macroglobulinemia To reference this document use: http://resolver.tudelft.nl/uuid:8298b010-d756-4647-a9ee-92dc665efc00 DOI https://doi.org/10.1046/j.1365-2567.1998.00428.x TNO identifier 234325 ISSN 0019-2805 Source Immunology, 93 (2), 162-170 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.