A Melanoma Brain Metastasis CTC Signature and CTC:B-cell Clusters Associate with Secondary Liver Metastasis: A Melanoma Brain-Liver Metastasis Axis.

IF 2 Q3 ONCOLOGY
Tetiana Y Bowley, Mireya C Ortiz, Irina V Lagutina, Mara P Steinkamp, Bridget N Fahy, Bernard Tawfik, Moises Harari-Turquie, Dario Marchetti
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Abstract

Significance: This study provides important insights into the relevance of prometastatic CTC:B-cell clusters in melanoma progression, extends the importance of the CTC RPL/RPS gene signature beyond primary metastasis/melanoma brain metastasis driving targeted organ specificity for liver metastasis ("metastasis of metastasis"), and identifies new targets for clinical melanoma metastasis therapies.

黑素瘤脑转移CTC特征和CTC:与继发性肝转移相关的B细胞簇:黑素瘤脑-肝转移轴。
黑素瘤脑转移(MBM)与预后差、总生存率低有关,高达80%的患者在尸检时被发现。循环肿瘤细胞(CTCs)是肿瘤最小的功能单位,也是致命转移的前体。我们之前采用了无偏倚的多水平方法来发现与MBM相关的独特核糖体蛋白大/小亚基(RPL/RPS) CTC基因特征。在这里,我们假设ctc驱动的MBM继发性转移(根据临床情况“转移的转移”)具有针对肝脏的器官特异性。我们用ctc来源的MBM细胞注射免疫缺陷和新发展的人源化NBSGW (HuNBSGW)小鼠平行队列,以确定继发性转移模式。我们在人源化NBSGW小鼠中发现了黑色素瘤脑肝转移轴的存在。此外,组织的RNA-Seq分析显示,与转移扩散到肝脏相关的RPL/RPS CTC基因特征显著上调。来自HuNBSGW血液的CTC的额外rna测序显示,这些小鼠的CTC与人类B细胞广泛聚集。CTC:原发性黑色素瘤患者血液中的B细胞簇也上调,并在CTC驱动的MBM或MBM CTC衍生的促进肝转移的细胞中维持。ctc生成的肿瘤组织在单细胞基因和蛋白表达水平上被询问(分别使用10x Genomics Xenium和HALO空间生物学平台)。总的来说,我们的研究结果表明,异型CTC:B细胞相互作用在转移的多个阶段可能是关键的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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