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病理报告滤泡性淋巴瘤1-2级
就诊医院北京协和
目前状态康复10-20年
最后登录2025-6-22
  
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发表于 2024-1-31 09:36:19
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来自: 中国北京
几乎没有什么价值。参见:Yoon SE, Kim YJ, Shim JH, Park D, Cho J, Ko YH, Park WY, Mun YC, Lee KE, Cho D, Kim WS, Kim SJ. Plasma Circulating Tumor DNA in Patients with Primary Central Nervous System Lymphoma. Cancer Res Treat. 2022 Apr;54(2):597-612. doi: 10.4143/crt.2021.752. Epub 2021 Jul 23. PMID: 34325497; PMCID: PMC9016302.
摘其中的一段结论:
In this study, we investigated the clinical relevance of plasma ctDNA-based mutation analysis in 42 patients who were consecutively enrolled in our prospective cohort. Considering that the feasibility of blood-based genotyping is unclear in patients with a brain tumor because of the BBB, we first measured the concentration of cfDNA in the blood of patients with PCNSL and analyzed its role as a biomarker for predicting tumor burden and treatment outcome. We observed that the concentration of cfDNA in PCNSL patients was much lower than that in patients with systemic DLBCL (Fig. 2B). Furthermore, tumor volume and tumor location were not associated with the concentration of cfDNA (Fig. 2C and D). Hence, the pretreatment cfDNA concentration and the serial changes in concentration during treatment failed to predict the treatment outcomes (Fig. 2E–G). These findings implied a lack of clinical usefulness of cfDNA concentration as a liquid biopsy-driven biomarker in patients with PCNSL.
“在这项研究中,我们调查了42例连续入选前瞻性队列的患者的血浆ctDNA突变分析的临床相关性。考虑到基于血液的基因分型因为血脑屏障的原因在脑肿瘤患者中的可行性尚不清楚,我们首先测量了PCNSL(原发中枢神经系统淋巴瘤)患者血液中cfDNA的浓度,并分析了其作为预测肿瘤负荷和治疗结果的生物标志物的作用。我们观察到PCNSL患者的cfDNA浓度远低于系统性DLBCL(弥漫大B细胞淋巴瘤)患者(图2B)。此外,肿瘤体积和肿瘤位置与cfDNA的浓度无关(图2C和D)。因此,治疗前cfDNA浓度和治疗期间浓度的一系列变化无法预测治疗结果(图2E-G)。这些发现表明,在PCNSL患者中,cfDNA浓度作为液体活检指导的生物标志物缺乏临床实用性。”
原则上说,原发中枢神经系统淋巴瘤的MRD检测,脑脊液ctDNA的价值>脑脊液流式细胞学检查>血浆ctDNA检查。
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