发生黑色素瘤的风险在具有低计数单克隆B细胞淋巴细胞瘤的个体中
Bryan A Vallejo1, Ahmed Ansari2, Sameer A Parikh3
1Division of Computational Biology, Mayo Clinic, Rochester, MN.
概括
单克隆B细胞淋巴细胞病 (MBL) 患者患黑色素瘤的风险增加了近两倍. 这种关联在现场黑色素瘤中尤为强烈,突出了MBL和皮肤癌风险之间的重要联系.
科学领域:
- 血液学 血液学 血液学
- 皮肤病学 皮肤病学
- 在瘤学瘤学.
背景情况:
- 具有慢性淋巴细胞白血病 (CLL) 现型的单克隆B细胞淋巴细胞病 (MBL) 是一种前发性疾病,比CLL更为普遍.
- 已经确立了CLL与黑色素瘤风险增加之间的关联,但其扩展到MBL仍然不清楚.
研究的目的:
- 调查在CLL患者中观察到的高黑色素瘤风险是否延伸到MBL患者.
- 在被诊断为MBL的个体中量化黑色素瘤发展的风险.
主要方法:
- 利用梅奥诊所生物库对40岁以上没有先前血液恶性瘤的参与者进行MBL查,使用八色流细胞计.
- 根据克隆B细胞百分比,将MBL分为低计数 (LC-MBL) 和高计数类别.
- 通过ICD代码和医疗记录审查识别出发生的黑色素瘤,并通过Cox回归模型分析数据.
主要成果:
- 在7,334名查参与者中,1151人患有CD5阳性MBL;1,098人患有LC-MBL.
- 在长达3.2年的中位数随访期间,131名参与者患上了黑色素瘤,36人患上了MBL.
- 患有MBL的个体患黑色素瘤的风险增加了1.86倍 (调整HR,1.86;95%CI,1.25-2.78),即使在没有黑色素瘤病史的人中也持续存在 (HR,2.05;95%CI,1.30-3.23).
结论:
- 低数MBL (LC-MBL) 与总体黑色素瘤风险增加约两倍有关.
- 患有LC-MBL的人面临着与没有MBL的人相比,在现场发生黑色素瘤的风险是2.74倍.
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