骨髓瘤瘤的风险为生殖线DDX41病原变异的携带者
Marie-Charlotte Villy1,2, Youenn Drouet3, Lise Larcher4,5
1Department of Oncogenetics, Assistance Publique - Hôpitaux de Paris (APHP), Saint-Louis Hospital, Paris, France. marie-charlotte.villy@aphp.fr.
European journal of human genetics : EJHG
|October 3, 2025
概括
生殖系DDX41致病变体 (PV) 显著增加骨髓瘤 (MN) 风险,估计在70岁时为19.5%. 对于从50岁开始的携带者来说,建议每年进行血液计数.
科学领域:
- 血液学 血液学 血液学
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
背景情况:
- 单基生殖系DDX41致病变体 (PV) 是对髓状瘤 (MN) 遗传倾向的最常见原因.
- 骨髓瘤,包括骨髓瘤综合征和急性骨髓瘤白血病,是罕见的克隆性造血性疾病.
- 造血干细胞移植是MN的治疗方法,需要对受影响个体的亲属进行遗传查.
研究的目的:
- 为了确定生殖线DDX41 PV在MN家庭的透度.
- 评估在携带家族DDX41PV.的亲属中发展MN的风险.
- 为DDX41 PV.携带者未受影响的亲属制定监测指南.
主要方法:
- 使用基因型限制可能性 (GRL) 方法来估计风险.
- 从法国11个中心确定了63个携带生殖系DDX41 PV (ACMG类4或5) 的MN探针家族.
- 基因型为160名亲属,其中80人 (50%) 被确定为家族DDX41 PV.携带者.
主要成果:
- 对于DDX41PV载体,70岁时MN的累积风险估计为19.5% (95%CI:5.8%-62.5%).
- 这意味着与普通人群相比,MN的相对风险增加了55倍 (95% CI: 16.4-176.5).
- 这种风险在男性中似乎更高,尽管在统计学上并不显著,女性在50岁之前观察到MN病例.
结论:
- 生殖系DDX41PV携带者在一生中患髓状瘤的风险显著增加.
- 从50岁起,建议每年对DDX41PV携带者进行完整血清查.
- 由于风险和发病年龄的潜在基于性别的差异,有必要进行性别差异化的监测.
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