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复制许可的关键因素CDC6过度表达,在扩散大B细胞淋巴瘤中预后不佳

Mingfang Shen¹, Yunfeng Zhang¹, Lun Tang¹

¹Department of Hematology, the First Hospital of Jiaxing, 314001, Zhejiang, China.

|October 13, 2023

概括

细胞分裂周期6 (CDC6) 通过调节细胞周期和细胞亡,促进扩散较大的B细胞淋巴瘤 (DLBCL) 细胞增殖和存活. CDC6在DLBCL中过度表达,可以作为一种新的预后标志物.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

细胞分裂周期6 (CDC6) 是DNA复制启动的关键许可因素.
目前尚不清楚CDC6在扩散性大B细胞淋巴瘤 (DLBCL) 发病过程中的具体作用.
了解CDC6在DLBCL中的功能对于开发向疗法至关重要.

研究的目的:

研究CDC6对DLBCL细胞增殖,细胞亡和细胞周期调节的影响.
阐明DCD6在DLBCL中的作用背后的分子机制.
在DLBCL中将CDC6表达水平与临床特征和患者预后相关联.

主要方法:

生物信息分析以确定CDC6在DLBCL中的潜在作用.
在DLBCL细胞系 (SUDHL4,OCI-LY7) 中使用lentiviral载体过度表达和击败CDC6.
细胞增殖 (CCK-8),细胞亡 (Annexin-V/7-AAD) 和细胞周期 (流细胞计) 的评估.
通过qRT-PCR和西白斑对CDC6表达和下游信号通路的分析.
在患者组织中对CDC6表达的免疫组织化学评估以及与临床数据的相关性.

主要成果:

在分析表明,CDC6过度表达与较差的DLBCL预后相关.
过度表达CDC6增强了DLBCL细胞的增殖,而 knockdown则抑制了它.
CDC6过度表达减少了G1阶段细胞;敲击诱导了G1停止和增加了亡.
CDC6调节了细胞周期调节剂 (INK4,ATR) 和细胞亡标记物的表达 (Bcl-2,Bax).
与反应性增生相比,CDC6在DLBCL组织中过度表达,并与非GCB亚型和不利结局 (PFS,OS) 相联系.

结论:

CDC6通过影响G1/S细胞周期检查点和亡来促进DLBCL细胞的增殖和生存.
在DLBCL中,CDC6显著过度表达.
CDC6代表了DLBCL患者潜在的新型预后生物标志物.

关键词:

细胞灭亡 (apoptosis) 是一种死亡的过程.美国疾病预防控制中心6 CDC6 CDC6 细胞循环的细胞周期扩散性大B细胞淋巴瘤预后预后预测预测

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