在儿童高度骨肉瘤中G2表达特征和MYC过度表达的预后价值
Roelof van Ewijk1, Laura S Hiemcke-Jiwa1,2, Jayne Y Hehir-Kwa1
1Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.
JCO precision oncology
|May 29, 2025
概括
G2基因表达特征和MYC表达是儿科高度骨髓瘤不良结果的独立预测因素. 这些标记物可能有助于为未来的临床试验分层患者.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 高度骨肉瘤的预后因素目前不足以使患者分层.
- 一个G1/G2基因表达特征确定了与低生存率相关的G2特征.
- MYC放大已被确定为一个不利的预后因素.
研究的目的:
- 为了验证G1/G2签名的独立预后值.
- 调查G1/G2特征与MYC放大和/或MYC表达的综合预后价值,以预测骨髓瘤的存活率.
主要方法:
- 包括患有高度骨髓瘤的儿童和青少年患者.
- 进行了RNA测序和全外因子测序.
- 用多变量Cox比例危险模型计算和分析了基因表达特征得分,MYC放大和MYC表达水平,用于无事件生存 (EFS) 和整体生存 (OS).
主要成果:
- G2签名和MYC表达独立地与更糟糕的EFS和OS有关.
- G2签名显示EFS的危险比率为3.32,OS的危险比率为4.07.
- 在MYC表达中,EFS的HR为3.38,OS的HR为2.88. MYC放大与生存没有显著关联.
结论:
- G2基因表达特征和MYC表达是儿童高度骨髓瘤不良结果的独立预后因素.
- 这些标志物的综合预后价值需要进一步的前性验证.
- 这些标记物可能会在未来的骨髓瘤治疗方案中被用于患者分层.
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