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Motion microscopy for label-free detection of circulating breast tumor cells
- Title
- Motion microscopy for label-free detection of circulating breast tumor cells
- Authors
- Kim, Hyueyun; Ahn, Young-Ho; Kim, Bom Sahn; Park, Sanghui; Yoon, Joo Chun; Park, Junbeom; Moon, Chang Mo; Ryu, Dong-Ryeol; Kang, Jihee Lee; Choi, Ji Ha; Park, Eun-Mi; Lee, Kyung Eun; Woo, Minna; Kim, Minsuk
- Ewha Authors
- 류동열; 이지희; 이경은; 박은미; 최지하; 김범산; 윤주천; 박상희; 문창모; 김민석; 안영호; 박준범
- SCOPUS Author ID
- 류동열; 이지희; 이경은; 박은미; 최지하; 김범산; 윤주천; 박상희; 문창모; 김민석; 안영호; 박준범
- Issue Date
- 2020
- Journal Title
- BIOSENSORS & BIOELECTRONICS
- ISSN
- 0956-5663
1873-4235
- Citation
- BIOSENSORS & BIOELECTRONICS vol. 158
- Keywords
- Microfluidic system; Motion microscopy; Circulating tumor cells; Breast cancer; Computational tool; Vibration
- Publisher
- ELSEVIER ADVANCED TECHNOLOGY
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Circulating tumor cells (CTCs) are cancer cells that have been shed from a primary tumor and circulate in the bloodstream during progression of cancer. They may thus serve as circulating biomarkers that can predict, diagnose and guide therapy. Moreover, phenotypic and genotypic analysis of CTCs can facilitate prospective assessment of mutations and enable personalized treatment. A number of methodologies based on biological and physical differences between circulating tumor and non-tumor cells have been developed over the past few years. However, these methods did not have sufficient sensitivity or specificity. In this work, a remote analysis protocol was designed using motion microscopy that amplifies cellular micro motions in a captured video by re-rendering small motions to generate extreme magnified visuals to detect dynamic motions that are not otherwise visible by naked eye. Intriguingly, motion microscopy demonstrated fluctuations around breast tumor cells, which we referred to herein as cellular trail. Phenomena of cellular trail mostly emerged between 0.5 and 1.5 Hz on amplified video images. Interestingly, cellular trails were associated with cell surface proteins and flow rates rather than mitochondrial activity. Moreover, cellular trails were present only around circulating tumor cells from individuals with breast cancer under conditions of 20-30 mu m/s and 0.5-1.5 Hz. Thus, motion microscopy based CTC detection method can offer a valuable supplementary diagnostic tool for assessment of drug efficacy and identifying physical characteristics of tumor cells for further research.
- DOI
- 10.1016/j.bios.2020.112131
- Appears in Collections:
- 의과대학 > 의학과 > Journal papers
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