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dc.contributor.authorKallergi, G.
dc.contributor.authorAggouraki, D.
dc.contributor.authorZacharopoulou, N.
dc.date.accessioned2019-05-17T13:21:13Z
dc.date.available2019-05-17T13:21:13Z
dc.date.issued2018
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85049586443&doi=10.1186%2fs13058-018-0993-z&partnerID=40&md5=c3fb2626aac0e689535455a3a2230f61
dc.identifier.urihttp://hdl.handle.net/10713/9151
dc.description.abstractBackground: Circulating tumor cells (CTCs) are the major players in the metastatic process. A potential mechanism of cell migration and invasion is the formation of microtentacles in tumor cells. These structures are supported by ?-tubulin (TUB), detyrosinated ?-tubulin (GLU), and vimentin (VIM). In the current study, we evaluated the expression of those cytoskeletal proteins in CTCs. Methods: Forty patients with breast cancer (BC) (16 early and 24 metastatic) were enrolled in the study. CTCs were isolated using the ISET platform and stained with the following combinations of antibodies: pancytokeratin (CK)/VIM/TUB and CK/VIM/GLU. Samples were analyzed with the ARIOL platform and confocal laser scanning microscopy. Results: Fluorescence quantification revealed that the ratios CK/TUB, CK/VIM, and CK/GLU were statistically increased in MCF7 compared with more aggressive cell lines (SKBR3 and MDA-MB-231). In addition, all of these ratios were statistically increased in MCF7 cells compared with metastatic BC patients' CTCs (p = 0.0001, p = 0.0001, and p = 0.003, respectively). Interestingly, intercellular connections among CTCs and between CTCs and blood cells through cytoskeleton bridges were revealed, whereas microtentacles were increased in patients with CTC clusters. These intercellular connections were supported by TUB, VIM, and GLU. Quantification of the examined molecules revealed that the median intensity of TUB, GLU, and VIM was significantly increased in patients with metastatic BC compared with those with early disease (TUB, 62.27 vs 11.5, p = 0.0001; GLU, 6.99 vs 5.29, p = 0.029; and VIM, 8.24 vs 5.38, p = 0.0001, respectively). Conclusions: CTCs from patients with BC aggregate to each other and to blood cells through cytoskeletal protrusions, supported by VIM, TUB, and GLU. Quantification of these molecules could potentially identify CTCs related to more aggressive disease. Copyright 2018 The Author(s).en_US
dc.description.sponsorshipThe authors acknowledge the partial support of this work by the Hellenic Oncology Research Group (HORG).en_US
dc.description.urihttps://dx.doi.org/10.1186/s13058-018-0993-zen_US
dc.language.isoen_USen_US
dc.publisherBioMed Central Ltd.en_US
dc.relation.ispartofBreast Cancer Research
dc.subjectBreast canceren_US
dc.subjectCTCsen_US
dc.subjectCytoskeletonen_US
dc.subjectDetyrosinated ?-tubulinen_US
dc.subjectMetastasisen_US
dc.subjectMicrotentaclesen_US
dc.subjectVimentinen_US
dc.subjectalpha-Tubulinen_US
dc.titleEvaluation of α-tubulin, detyrosinated α-tubulin, and vimentin in CTCs: Identification of the interaction between CTCs and blood cells through cytoskeletal elementsen_US
dc.title.alternativeEvaluation of alpha-tubulin, detyrosinated alpha-tubulin, and vimentin in CTCs: Identification of the interaction between CTCs and blood cells through cytoskeletal elementsen_US
dc.typeArticleen_US
dc.identifier.doi10.1186/s13058-018-0993-z
dc.identifier.pmid29976237


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