Leukemia ( IF 12.8 ) Pub Date : 2024-10-14 , DOI: 10.1038/s41375-024-02363-y Hongwei Tang, Huihuang Yan, Suganti Shivaram, Stacey Lehman, Neeraj Sharma, James Smadbeck, Cinthya Zepeda-Mendoza, Shulan Tian, Yan Asmann, Celine Vachon, Alexandre Gaspar Maia, Jonathan Keats, P. Leif Bergsagel, Rafael Fonseca, A. Keith Stewart, Joel-Sean Hsu, Richard K. Kandasamy, Akhilesh Pandey, Marcella A. Kaddoura, Francesco Maura, Amit Mitra, S. Vincent Rajkumar, Shaji K. Kumar, Eran Elhaik, Esteban Braggio, Linda B. Baughn
Multiple myeloma (MM) is a plasma cell (PC) malignancy characterized by cytogenetic abnormalities, such as t(11;14)(q13;q32), resulting in CCND1 overexpression. The rs9344 G allele within CCND1 is the most significant susceptibility allele for t(11;14). Sequencing data from 2 independent cohorts, CoMMpass (n = 698) and Mayo Clinic (n = 661), confirm the positive association between the G allele and t(11;14). Among 80% of individuals heterozygous for rs9344 with t(11;14), the t(11;14) event occurs on the G allele, demonstrating a biological preference for the G allele in t(11;14). Within t(11;14), the G allele is associated with higher CCND1 expression and elevated H3K27ac and H3K4me3. CRISPR/Cas9 mediated A to G conversion resulted in increased H3K27ac over CCND1 and elevated CCND1 expression. ENCODE ChIP-seq data supported a PAX5 binding site within the enhancer region covering rs9344, showing preferential binding to the G allele. Overexpression of PAX5 resulted in increased CCND1 expression. These results support the importance of rs9344 G enhancer in increasing CCND1 expression in MM.
中文翻译:
11q13.3 功能变异 rs9344 调节多发性骨髓瘤中 CCND1 的表达 t(11;14)
多发性骨髓瘤 (MM) 是一种浆细胞 (PC) 恶性肿瘤,其特征是细胞遗传学异常,例如 t(11;14)(q13;q32),导致 CCND1 过表达。CCND1 中的 rs9344 G 等位基因是 t(11;来自 2 个独立队列 CoMMpass (n = 698) 和梅奥诊所 (n = 661) 的测序数据证实了 G 等位基因与 t(11;在 80% 的个体中,rs9344 杂合子与 t(11;14)、t(11;14) 事件发生在 G 等位基因上,表明对 t(11;14). 在 t(11;14),G 等位基因与 CCND1 表达升高以及 H3K27ac 和 H3K4me3 升高有关。CRISPR/Cas9 介导的 A 到 G 转换导致 H3K27ac 比 CCND1 增加,CCND1 表达升高。ENCODE ChIP-seq 数据支持覆盖 rs9344 的增强子区域内的 PAX5 结合位点,显示出与 G 等位基因的优先结合。过表达 PAX5 导致 CCND1 表达增加。这些结果支持 rs9344 G 增强子在增加 MM 中 CCND1 表达的重要性。