Micrometastatic spread in breast cancer: detection, molecular characterization and clinical relevance.

Micrometastatic spread in breast cancer: detection, molecular characterization and clinical relevance.
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DOI:
10.1186/bcr1869
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发表时间:
2008
期刊:
Breast cancer research : BCR
影响因子:
--
通讯作者:
Pantel K
Pantel K
中科院分区:
其他
文献类型:
--
作者:
Fehm T;Müller V;Alix-Panabières C;Pantel K

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免疫细胞化学或分子检测可以在10%至60%无转移迹象的乳腺癌患者的骨髓或外周血中检测到单播散性肿瘤细胞(dtc)。最近报道的研究结果表明,循环肿瘤细胞(CTC)水平可作为转移性乳腺癌患者的预后标志物,并可用于早期评估治疗反应。然而,在早期乳腺癌中,ctc的影响不如dtc在BM中的影响那么明确,在BM中,一些临床研究表明,这些细胞是初步诊断时的独立预后因素。dtc / ctc的特征已经为癌症患者早期肿瘤细胞传播和转移进展的复杂过程提供了新的思路。表征dtc应该有助于确定旨在防止转移性复发的生物治疗的新靶点。此外,了解肿瘤的“休眠”和识别转移性干细胞可能会导致新的治疗概念的发展。
Immunocytochemical or molecular assays allow the detection of single disseminated tumor cells (DTCs) in the bone marrow (BM) or the peripheral blood in 10% to 60% of breast cancer patients without signs of metastasis. Results from recently reported studies suggest that circulating tumor cell (CTC) levels may serve as a prognostic marker and be used for early assessment of therapeutic response in patients with metastatic breast cancer. In early stage breast cancer, however, the impact of CTCs is less well established than that of DTCs in BM, where several clinical studies demonstrated that such cells are an independent prognostic factor at primary diagnosis. The characterization of DTCs/CTCs has already shed new light on the complex process underlying early tumor cell dissemination and metastatic progression in cancer patients. Characterization of DTCs should help to identify novel targets for biological therapies aimed to prevent metastatic relapse. In addition, understanding tumor 'dormancy' and identifying metastatic stem cells might result in the development of new therapeutic concepts.
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