Assessment for 11q and other chromosomal aberrations in large B-cell/high-grade B cell lymphomas of germinal center phenotype lacking BCL2 expression

IF 1.4 4区 医学 Q4 GENETICS & HEREDITY
Chia-Chen Ho , Kikkeri Naresh , Yajuan Liu , Yu Wu , Ajay K Gopal , Ashley M Eckel
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Abstract

The WHO classifications of hematolymphoid malignancies have recognized several distinct entities within the large B cell lymphomas, including the more recently described high-grade B cell lymphoma with 11q aberration (HGBCL-11q). We utilized genomic array to assess for chromosome 11q abnormalities in a broad set of aggressive B cell lymphomas from 27 patients with a focus on younger adults. The findings suggest more frequent alterations of 11q in diffuse large B cell lymphoma (DLBCL)/HGBCL-GC BCL2-, in comparison to cases of Burkitt lymphoma (BL) or DLBCL-GC BCL2+, and confirm a low genomic complexity score of BL. Variability identified in patterns of 11q alterations suggests genomic array studies may afford value over FISH testing as we continue to understand HGBCL-11q as a distinct entity, and interrogate cases of DLBCL/HGBCL-GC BCL2-.

评估缺乏 BCL2 表达的生殖中心表型大 B 细胞/高级别 B 细胞淋巴瘤的 11q 和其他染色体畸变情况
世界卫生组织(WHO)对血淋巴细胞恶性肿瘤的分类已确认大B细胞淋巴瘤中有几个不同的实体,包括最近描述的伴有11q畸变的高级别B细胞淋巴瘤(HGBCL-11q)。我们利用基因组阵列评估了来自 27 名患者的一组侵袭性 B 细胞淋巴瘤的 11q 染色体异常,重点是年轻的成年人。研究结果表明,与伯基特淋巴瘤(Burkitt lymphoma,BL)或DLBCL-GC BCL2+病例相比,弥漫大B细胞淋巴瘤(DLBCL)/HGBCL-GC BCL2-病例中11q的改变更为频繁,并证实BL的基因组复杂性得分较低。在11q改变模式中发现的变异表明,在我们继续将HGBCL-11q作为一个独特的实体来理解,并对DLBCL/HGBCL-GC BCL2-病例进行询问时,基因组阵列研究可能比FISH检测更有价值。
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来源期刊
Cancer Genetics
Cancer Genetics ONCOLOGY-GENETICS & HEREDITY
CiteScore
3.20
自引率
5.30%
发文量
167
审稿时长
27 days
期刊介绍: The aim of Cancer Genetics is to publish high quality scientific papers on the cellular, genetic and molecular aspects of cancer, including cancer predisposition and clinical diagnostic applications. Specific areas of interest include descriptions of new chromosomal, molecular or epigenetic alterations in benign and malignant diseases; novel laboratory approaches for identification and characterization of chromosomal rearrangements or genomic alterations in cancer cells; correlation of genetic changes with pathology and clinical presentation; and the molecular genetics of cancer predisposition. To reach a basic science and clinical multidisciplinary audience, we welcome original full-length articles, reviews, meeting summaries, brief reports, and letters to the editor.
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