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Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform
Numerous technologies exist to detect circulating tumor cells (CTCs), although reports on cytological detection of CTCs remain limited. We recently developed a cytology-based CTC detection device using glass slides and light microscopy. In this study, we automated this previously manual device to im...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392262/ https://www.ncbi.nlm.nih.gov/pubmed/30811434 http://dx.doi.org/10.1371/journal.pone.0212221 |
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author | Tsutsuyama, Masayuki Nakanishi, Hayao Yoshimura, Mayumi Oshiro, Taihei Kinoshita, Takashi Komori, Koji Shimizu, Yasuhiro Ichinosawa, Yoshiyuki Kinuta, Seichin Wajima, Kentaro Sakakibara, Yasufumi Yatabe, Yasushi Ito, Seiji Kodera, Yasuhiro |
author_facet | Tsutsuyama, Masayuki Nakanishi, Hayao Yoshimura, Mayumi Oshiro, Taihei Kinoshita, Takashi Komori, Koji Shimizu, Yasuhiro Ichinosawa, Yoshiyuki Kinuta, Seichin Wajima, Kentaro Sakakibara, Yasufumi Yatabe, Yasushi Ito, Seiji Kodera, Yasuhiro |
author_sort | Tsutsuyama, Masayuki |
collection | PubMed |
description | Numerous technologies exist to detect circulating tumor cells (CTCs), although reports on cytological detection of CTCs remain limited. We recently developed a cytology-based CTC detection device using glass slides and light microscopy. In this study, we automated this previously manual device to improve its efficiency and cost effectiveness for clinical applications. We conducted a pilot study using this device to compare CTCs in peripheral blood (PB) and draining venous blood (DVB) from patients with colorectal cancer (CRC). The cytology-based automated CTC detection platform consisted of a disposable filtration device with a three-dimensional (3D) metal filter and multichannel automated CTC enrichment device. This platform allowed rapid and gentle filtration of CTCs and their efficient transfer from the filter to glass slides for subsequent Papanicolaou (Pap) and immunocytochemical (ICC) staining. Cytological diagnosis of CTCs was performed by observing permanent glass slide specimens by light microscopy. The current pilot clinical study enrolled CRC patients (n = 26) with stage I–IV tumors, who underwent surgery. PB was collected before surgery, and DVB was obtained from the mesenteric vein immediately after resection. Based on the CTC morphology obtained from PB and DVB samples, we proposed the following cytological criteria for the diagnosis of CTCs: pan-cytokeratin-positive, atypical cells with malignant morphological features identified by Pap staining. The numbers of CTCs defined by these criteria were significantly higher in DVB than PB from CRC patients (p<0.01), and the number of CTCs in DVB was increased significantly with stage progression (p<0.05). These results suggest that DVB may be another potential source of CTCs other than PB for liquid biopsies including downstream analysis. This automated cytology-based CTC detection device therefore provides a unique and powerful tool to investigate the significance of CTCs in CRC patients in a clinical setting. |
format | Online Article Text |
id | pubmed-6392262 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-63922622019-03-08 Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform Tsutsuyama, Masayuki Nakanishi, Hayao Yoshimura, Mayumi Oshiro, Taihei Kinoshita, Takashi Komori, Koji Shimizu, Yasuhiro Ichinosawa, Yoshiyuki Kinuta, Seichin Wajima, Kentaro Sakakibara, Yasufumi Yatabe, Yasushi Ito, Seiji Kodera, Yasuhiro PLoS One Research Article Numerous technologies exist to detect circulating tumor cells (CTCs), although reports on cytological detection of CTCs remain limited. We recently developed a cytology-based CTC detection device using glass slides and light microscopy. In this study, we automated this previously manual device to improve its efficiency and cost effectiveness for clinical applications. We conducted a pilot study using this device to compare CTCs in peripheral blood (PB) and draining venous blood (DVB) from patients with colorectal cancer (CRC). The cytology-based automated CTC detection platform consisted of a disposable filtration device with a three-dimensional (3D) metal filter and multichannel automated CTC enrichment device. This platform allowed rapid and gentle filtration of CTCs and their efficient transfer from the filter to glass slides for subsequent Papanicolaou (Pap) and immunocytochemical (ICC) staining. Cytological diagnosis of CTCs was performed by observing permanent glass slide specimens by light microscopy. The current pilot clinical study enrolled CRC patients (n = 26) with stage I–IV tumors, who underwent surgery. PB was collected before surgery, and DVB was obtained from the mesenteric vein immediately after resection. Based on the CTC morphology obtained from PB and DVB samples, we proposed the following cytological criteria for the diagnosis of CTCs: pan-cytokeratin-positive, atypical cells with malignant morphological features identified by Pap staining. The numbers of CTCs defined by these criteria were significantly higher in DVB than PB from CRC patients (p<0.01), and the number of CTCs in DVB was increased significantly with stage progression (p<0.05). These results suggest that DVB may be another potential source of CTCs other than PB for liquid biopsies including downstream analysis. This automated cytology-based CTC detection device therefore provides a unique and powerful tool to investigate the significance of CTCs in CRC patients in a clinical setting. Public Library of Science 2019-02-27 /pmc/articles/PMC6392262/ /pubmed/30811434 http://dx.doi.org/10.1371/journal.pone.0212221 Text en © 2019 Tsutsuyama et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Tsutsuyama, Masayuki Nakanishi, Hayao Yoshimura, Mayumi Oshiro, Taihei Kinoshita, Takashi Komori, Koji Shimizu, Yasuhiro Ichinosawa, Yoshiyuki Kinuta, Seichin Wajima, Kentaro Sakakibara, Yasufumi Yatabe, Yasushi Ito, Seiji Kodera, Yasuhiro Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
title | Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
title_full | Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
title_fullStr | Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
title_full_unstemmed | Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
title_short | Detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
title_sort | detection of circulating tumor cells in drainage venous blood from colorectal cancer patients using a new filtration and cytology-based automated platform |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392262/ https://www.ncbi.nlm.nih.gov/pubmed/30811434 http://dx.doi.org/10.1371/journal.pone.0212221 |
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