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Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent
BACKGROUND: The enumeration and characterization of circulating tumor cells (CTCs) in the blood of cancer patients is useful for cancer prognostic and treatment monitoring purposes. The number of CTCs present in patient blood is very low; thus, robust technologies have been developed to enumerate an...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995911/ https://www.ncbi.nlm.nih.gov/pubmed/24602297 http://dx.doi.org/10.1186/1475-2867-14-23 |
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author | Qin, Jianbing Alt, Jodi R Hunsley, Bradford A Williams, Thomas L Fernando, M Rohan |
author_facet | Qin, Jianbing Alt, Jodi R Hunsley, Bradford A Williams, Thomas L Fernando, M Rohan |
author_sort | Qin, Jianbing |
collection | PubMed |
description | BACKGROUND: The enumeration and characterization of circulating tumor cells (CTCs) in the blood of cancer patients is useful for cancer prognostic and treatment monitoring purposes. The number of CTCs present in patient blood is very low; thus, robust technologies have been developed to enumerate and characterize CTCs in patient blood samples. One of the challenges to the clinical utility of CTCs is their inherent fragility, which makes these cells very unstable during transportation and storage of blood samples. In this study we investigated Cell-Free DNA BCT™ (BCT), a blood collection device, which stabilizes blood cells in a blood sample at room temperature (RT) for its ability to stabilize CTCs at RT for an extended period of time. METHODS: Blood was drawn from each donor into K(3)EDTA tube, CellSave tube and BCT. Samples were then spiked with breast cancer cells (MCF-7), transported and stored at RT. Spiked cancer cells were counted using the Veridex CellSearch™ system on days 1 and 4. The effect of storage on the stability of proteins and nucleic acids in the spiked cells isolated from K(3)EDTA tube and BCT was determined using fluorescence staining and confocal laser scanning microscopy. RESULTS: MCF-7 cell recovery significantly dropped when transported and stored in K(3)EDTA tubes. However, in blood collected into CellSave tubes and BCTs, the MCF-7 cell count was stable up to 4 days at RT. Epithelial cell adhesion molecule (EpCAM) and cytokeratin (CK) in MCF-7 cells isolated from BCTs was stable at RT for up to 4 days, whereas in MCF-7 cells isolated from K(3)EDTA blood showed reduced EpCAM and CK protein expression. Similarly, BCTs stabilized c-fos and cyclin D1 mRNAs as compared to K(3)EDTA tubes. CONCLUSION: Cell-Free DNA™ BCT blood collection device preserves and stabilizes CTCs in blood samples for at least 4 days at RT. This technology may facilitate the development of new non-invasive diagnostic and prognostic methodologies for CTC enumeration as well as characterization. |
format | Online Article Text |
id | pubmed-3995911 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-39959112014-04-23 Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent Qin, Jianbing Alt, Jodi R Hunsley, Bradford A Williams, Thomas L Fernando, M Rohan Cancer Cell Int Primary Research BACKGROUND: The enumeration and characterization of circulating tumor cells (CTCs) in the blood of cancer patients is useful for cancer prognostic and treatment monitoring purposes. The number of CTCs present in patient blood is very low; thus, robust technologies have been developed to enumerate and characterize CTCs in patient blood samples. One of the challenges to the clinical utility of CTCs is their inherent fragility, which makes these cells very unstable during transportation and storage of blood samples. In this study we investigated Cell-Free DNA BCT™ (BCT), a blood collection device, which stabilizes blood cells in a blood sample at room temperature (RT) for its ability to stabilize CTCs at RT for an extended period of time. METHODS: Blood was drawn from each donor into K(3)EDTA tube, CellSave tube and BCT. Samples were then spiked with breast cancer cells (MCF-7), transported and stored at RT. Spiked cancer cells were counted using the Veridex CellSearch™ system on days 1 and 4. The effect of storage on the stability of proteins and nucleic acids in the spiked cells isolated from K(3)EDTA tube and BCT was determined using fluorescence staining and confocal laser scanning microscopy. RESULTS: MCF-7 cell recovery significantly dropped when transported and stored in K(3)EDTA tubes. However, in blood collected into CellSave tubes and BCTs, the MCF-7 cell count was stable up to 4 days at RT. Epithelial cell adhesion molecule (EpCAM) and cytokeratin (CK) in MCF-7 cells isolated from BCTs was stable at RT for up to 4 days, whereas in MCF-7 cells isolated from K(3)EDTA blood showed reduced EpCAM and CK protein expression. Similarly, BCTs stabilized c-fos and cyclin D1 mRNAs as compared to K(3)EDTA tubes. CONCLUSION: Cell-Free DNA™ BCT blood collection device preserves and stabilizes CTCs in blood samples for at least 4 days at RT. This technology may facilitate the development of new non-invasive diagnostic and prognostic methodologies for CTC enumeration as well as characterization. BioMed Central 2014-03-07 /pmc/articles/PMC3995911/ /pubmed/24602297 http://dx.doi.org/10.1186/1475-2867-14-23 Text en Copyright © 2014 Qin et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Primary Research Qin, Jianbing Alt, Jodi R Hunsley, Bradford A Williams, Thomas L Fernando, M Rohan Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
title | Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
title_full | Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
title_fullStr | Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
title_full_unstemmed | Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
title_short | Stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
title_sort | stabilization of circulating tumor cells in blood using a collection device with a preservative reagent |
topic | Primary Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995911/ https://www.ncbi.nlm.nih.gov/pubmed/24602297 http://dx.doi.org/10.1186/1475-2867-14-23 |
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