Capture of Circulating Tumour Cell Clusters Using Straight Microfluidic Chips

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Author(s)
Kulasinghe, Arutha
Zhou, Jian
Kenny, Liz
Papautsky, Ian
Punyadeera, Chamindie
Griffith University Author(s)
Year published
2019
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Show full item recordAbstract
Circulating tumour cells (CTCs) are the metastatic precursors to distant disease in head and neck cancers (HNCs). Whilst the prognostic and predictive value of single CTCs have been well documented, the role of CTC clusters, which potentially have a higher metastatic capacity are limited. In this study, the authors used a novel straight microfluidic chip to focus and capture CTCs. The chip offers high cell recoveries with clinically relevant numbers (10-500 cells/mL) without the need for further purification. Single CTCs were identified in 10/21 patient samples (range 2-24 CTCs/mL), CTC clusters in 9/21 patient samples (range ...
View more >Circulating tumour cells (CTCs) are the metastatic precursors to distant disease in head and neck cancers (HNCs). Whilst the prognostic and predictive value of single CTCs have been well documented, the role of CTC clusters, which potentially have a higher metastatic capacity are limited. In this study, the authors used a novel straight microfluidic chip to focus and capture CTCs. The chip offers high cell recoveries with clinically relevant numbers (10-500 cells/mL) without the need for further purification. Single CTCs were identified in 10/21 patient samples (range 2-24 CTCs/mL), CTC clusters in 9/21 patient samples (range 1-6 CTC clusters/mL) and circulating tumour microemboli (CTM) in 2/21 samples. This study demonstrated that CTC clusters contain EGFR amplified single CTCs within the cluster volume. This novel microfluidic chip demonstrates the efficient sorting and preservation of single CTCs, CTC clusters and CTMs. The authors intend to expand this study to a larger cohort to determine the clinical implication of the CTC subsets in HNC.
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View more >Circulating tumour cells (CTCs) are the metastatic precursors to distant disease in head and neck cancers (HNCs). Whilst the prognostic and predictive value of single CTCs have been well documented, the role of CTC clusters, which potentially have a higher metastatic capacity are limited. In this study, the authors used a novel straight microfluidic chip to focus and capture CTCs. The chip offers high cell recoveries with clinically relevant numbers (10-500 cells/mL) without the need for further purification. Single CTCs were identified in 10/21 patient samples (range 2-24 CTCs/mL), CTC clusters in 9/21 patient samples (range 1-6 CTC clusters/mL) and circulating tumour microemboli (CTM) in 2/21 samples. This study demonstrated that CTC clusters contain EGFR amplified single CTCs within the cluster volume. This novel microfluidic chip demonstrates the efficient sorting and preservation of single CTCs, CTC clusters and CTMs. The authors intend to expand this study to a larger cohort to determine the clinical implication of the CTC subsets in HNC.
View less >
Journal Title
Cancers
Volume
11
Issue
1
Copyright Statement
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Subject
Oncology and carcinogenesis
Science & Technology
Life Sciences & Biomedicine
Oncology
circulating tumour cells (CTCs)
CTC clusters