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QuantiFERON-TB Gold Plus
Detect TB infection with confidence.
Siegfried Hauch,QIAGEN
循环肿瘤细胞、无细胞 DNA (cfDNA) 及细胞外囊泡——使用同一份血液样本对这些进行分析时,我们可以了解到什么?与 Siegfried 一起,探讨以精简的工作流程采用多靶标液体活检对同一份血液样本进行多分析物提取及分析的价值。
生物体液(例如血液)是一种细胞及核酸生物标志物的无创来源材料,在识别和检测有助于针对每个患者选择最佳治疗的预后及预测因子方面,它是一种理想的“替代材料”。Sabine Kasimir-Bauer 和她的团队迎接了这项挑战,利用同一份血液样本对循环肿瘤细胞和细胞外囊泡中包含的 RNA 进行了比较和分析,并在疾病随访中对血浆样本中的无细胞 DNA (cfDNA) 进行了突变分析(下一代测序),以了解将该方法用于治疗分层及治疗方案预测的可行性。
与当前的可视化分级法相比,对包含在循环肿瘤细胞(Circulating Tumor Cell,CTC)和细胞外囊泡(Extracellular Vesicle,EV)中的 RNA 进行分析可能有助于更早地检测到疾病进展。Corinna Keup 讲述了自己的研究项目,其中她对转移性乳腺癌(Metastatic Breast Cancer,MBC)患者的 CTC 和细胞外囊泡(Extracellular Vesicle,EV)RNA 进行了特征比较,以了解将其用于治疗分层的可行性。
无细胞 DNA(Cell-free DNA,cfDNA)被认为可以反映肿瘤内的异质性,有助于了解克隆进化情况,以用于改善治疗策略。Corinna Keup 将会针对基于一个激素受体阳性、HER2 阴性转移性乳腺癌(Metastatic Breast Cancer,MBC)队列而进行的 cfDNA 靶向深度测序展开讨论,其目的在于确定在治疗条件下各种突变的流行率、相关性及其动态变化。分子条形码可用于在 cfDNA 中找出真正的阳性突变。
Integrative statistical analyses of multiple liquid biopsy analytes in metastatic breast cancer
Keup C, et al.Genome Med.2021 May 17;13(1):85. doi: 10.1186/s13073-021-00902-1.PMID: 34001236; PMCID: PMC8130163.
Longitudinal Multi-Parametric Liquid Biopsy Approach Identifies Unique Features of Circulating Tumor Cell, Extracellular Vesicle, and Cell-Free DNA Characterization for Disease Monitoring in Metastatic Breast Cancer Patients
Keup C, et al.Cells.2021 Jan 21;10(2):212. doi: 10.3390/cells10020212.PMID: 33494385; PMCID: PMC7912374.
Multimodal Targeted Deep Sequencing of Circulating Tumor Cells and Matched Cell-Free DNA Provides a More Comprehensive Tool to Identify Therapeutic Targets in Metastatic Breast Cancer Patients.Cancers
Keup C, et al.Cancers (Basel).2020 Apr 27;12(5):1084. doi: 10.3390/cancers12051084.PMID: 32349306; PMCID: PMC7281124.
Targeted deep sequencing revealed variants in cell-free DNA of hormone receptor-positive metastatic breast cancer patients.
Keup C, et al.Cell Mol Life Sci.2020 Feb;77(3):497-509. doi: 10.1007/s00018-019-03189-z.Epub 2019 Jun 28.PMID: 31254045; PMCID: PMC7010653.
Cell-free DNA variant sequencing using CTC-depleted blood for comprehensive liquid biopsy testing in metastatic breast cancer
Keup C, et al.Cancers (Basel).2019 Feb 18;11(2):238. doi: 10.3390/cancers11020238.PMID: 30781720; PMCID: PMC6406821.
RNA profiles of circulating tumor cells and extracellular vesicles for therapy stratification of metastatic breast cancer patients.
Keup C, et. al.RNA Profiles of Circulating Tumor Cells and Clin Chem.2018 Jul;64(7):1054-1062. doi: 10.1373/clinchem.2017.283531.Epub 2018 May 16.PMID: 29769179.