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Shan Y, Gong Q, Wang J, Xu J, Wei Q, Liu C, Xue L, Wang S, Liu F. Measurements on ATP induced cellular fluctuations using real-time dual view transport of intensity phase microscopy. BIOMEDICAL OPTICS EXPRESS 2019; 10:2337-2354. [PMID: 31143493 PMCID: PMC6524602 DOI: 10.1364/boe.10.002337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/28/2019] [Accepted: 04/02/2019] [Indexed: 05/20/2023]
Abstract
Dual view transport of intensity phase microscopy is adopted to quantitatively study the regulation of adenosine triphosphate (ATP) on cellular mechanics. It extracts cell phases in real time from simultaneously captured under- and over-focus images. By computing the root-mean-square phase and correlation time, it is found that the cellular fluctuation amplitude and speed increased with ATP compared to those with ATP depletion. Besides, when adenylyl-imidodiphosphate (AMP-PNP) was introduced, it competed with ATP to bind to the ATP binding site, and the cellular fluctuation amplitude and speed decreased. The results prove that ATP is a factor in the regulation of cellular mechanics. To our best knowledge, it is the first time that the dual view transport of intensity phase microscopy was used for live cell phase imaging and analysis. Our work not only provides direct measurements on cellular fluctuations to study ATP regulation on cellular mechanics, but it also proves that our proposed dual view transport of intensity phase microscopy can be well used, especially in quantitative phase imaging of live cells in biological and medical applications.
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Affiliation(s)
- Yanke Shan
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- These authors contributed equally to this work
| | - Qingtao Gong
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
- These authors contributed equally to this work
| | - Jian Wang
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Jing Xu
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qi Wei
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Cheng Liu
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Liang Xue
- College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Shouyu Wang
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
- Computational Optics Laboratory, School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fei Liu
- Joint International Research Laboratory of Animal Health and Food Safety of Ministry of Education & Single Molecule Nanometry Laboratory (Sinmolab), Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
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