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Medline ® Abstract for Reference 32

of 'Clinical manifestations, pathologic features, and diagnosis of splenic marginal zone lymphoma'

Immunogenetics features and genomic lesions in splenic marginal zone lymphoma.
Rinaldi A, Forconi F, Arcaini L, Mian M, Sozzi E, Zibellini S, Baldini L, Franceschetti S, Gaidano G, Marasca R, Mollejo M, Piris MA, Tucci A, Facchetti F, Bhagat G, Favera RD, Rancoita PM, Zucca E, Kwee I, Bertoni F
Br J Haematol. 2010;151(5):435.
Splenic marginal zone lymphomas (MZL) express mutated (M)) or unmutated (U)) immunoglobulin heavy chain (IGHV) genes. To investigate the IGHV mutational status impact on genetic lesions, this study combined single nucleotide polymorphism-arrays and IGHV sequencing in 83 cases. Clinical features and outcome were similar between U- and M-IGHV cases. Recurrent lesions frequency was higher in U-IGHV cases, including poor prognosticators. Frequencies differed among cases bearing individual IGHV genes or lambda light chains. In conclusion, SMZL comprises subgroups based on genetic abnormalities and immunogenetic status. Genomic lesion frequency differed and was higher in U-IGHV cases, possibly affecting the outcome.
Laboratory of Experimental Oncology and Lymphoma Unit, Oncology Institute of Southern Switzerland (IOSI), Bellinzona, Switzerland.