Chromosome 11q23.1 is an unstable region in B-cell tumor cell lines

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• 作者：Giulia Poretti^a ; Ivo Kwee^a ; ^b ; Barbara Bernasconi^c ; Paola M.V. Rancoita^a ; ^b ; Andrea Rinaldi^a ; Carlo Capella^c ; Emanuele Zucca^a ; Antonino Neri^d ; Maria Grazia Tibiletti^c ; Francesco Bertoni^a ; ^{frbertoni@mac.com"" rel=""nofollow}
• 关键词：Translocation ; FISH ; array ; Transcriptome ; Tiling ; POUAF1 ; PPP2R1B ; SIK2 ; Lymphoma
• 刊名：Leukemia Research
• 出版年：2011
• 出版时间：June 2011
• 年：2011
• 卷：35
• 期：6
• 页码：808-813
• 全文大小：581 K

文摘

Chromosome 11q23 region is a frequent target of chromosome aberrations in B-cell lymphoid tumors. Here, we present the cytogenetic and molecular characterization of an amplification affecting 11q23.1 in four cell lines derived from B-cell lymphoid tumors. A minimal common region of amplification of 330 kb was identified in three cell lines using Affymetrix Human Mapping 250K arrays. When analyzed with three BAC clones, the amplifications appeared different at cytogenetic level in each cell line. Possibly affected transcripts were evaluated using tiling arrays, and validated by real time PCR. Since no effect of the amplification at the local transcription level was observed, it is possible that 11q23 amplification might mainly represent the effect of unstable chromosomal region.