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Asthana V, Tang Y, Ferguson A, Bugga P, Asthana A, Evans ER, Chen AL, Stern BS, Drezek RA. An inexpensive, customizable microscopy system for the automated quantification and characterization of multiple adherent cell types. PeerJ 2018; 6:e4937. [PMID: 29888136 PMCID: PMC5993021 DOI: 10.7717/peerj.4937] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 05/18/2018] [Indexed: 12/13/2022] Open
Abstract
Cell quantification assays are essential components of most biological and clinical labs. However, many currently available quantification assays, including flow cytometry and commercial cell counting systems, suffer from unique drawbacks that limit their overall efficacy. In order to address the shortcomings of traditional quantification assays, we have designed a robust, low-cost, automated microscopy-based cytometer that quantifies individual cells in a multiwell plate using tools readily available in most labs. Plating and subsequent quantification of various dilution series using the automated microscopy-based cytometer demonstrates the single-cell sensitivity, near-perfect R2 accuracy, and greater than 5-log dynamic range of our system. Further, the microscopy-based cytometer is capable of obtaining absolute counts of multiple cell types in one well as part of a co-culture setup. To demonstrate this ability, we recreated an experiment that assesses the tumoricidal properties of primed macrophages on co-cultured tumor cells as a proof-of-principle test. The results of the experiment reveal that primed macrophages display enhanced cytotoxicity toward tumor cells while simultaneously losing the ability to proliferate, an example of a dynamic interplay between two cell populations that our microscopy-based cytometer is successfully able to elucidate.
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Affiliation(s)
| | - Yuqi Tang
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Adam Ferguson
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Pallavi Bugga
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Anantratn Asthana
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Emily R Evans
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Allen L Chen
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Brett S Stern
- Department of Bioengineering, Rice University, Houston, TX, USA
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Subramaniyan SA, Kim S, Hwang I. Cell-Cell Communication Between Fibroblast and 3T3-L1 Cells Under Co-culturing in Oxidative Stress Condition Induced by H 2O 2. Appl Biochem Biotechnol 2016; 180:668-681. [PMID: 27193258 DOI: 10.1007/s12010-016-2123-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 05/06/2016] [Indexed: 11/26/2022]
Abstract
The present study was carried out to understand the interaction between fibroblast and 3T3-L1 preadipocyte cells under H2O2-induced oxidative stress condition. H2O2 (40 μM) was added in co-culture and monoculture of fibroblast and 3T3-L1 cell. The cells in the lower well were harvested for analysis and the process was carried out for both cells. The cell growth, oxidative stress markers, and antioxidant enzymes were analyzed. Additionally, the mRNA expressions of caspase-3 and caspase-7 were selected for analysis of apoptotic pathways and TNF-α and NF-κB were analyzed for inflammatory pathways. The adipogenic marker such as adiponectin and PPAR-γ and collagen synthesis markers such as LOX and BMP-1 were analyzed in the co-culture of fibroblast and 3T3-L1 cells. Cell viability and antioxidant enzymes were significantly increased in the co-culture compared to the monoculture under stress condition. The apoptotic, inflammatory, adipogenic, and collagen-synthesized markers were significantly altered in H2O2-induced co-culture of fibroblast and 3T3-L1 cells when compared with the monoculture of H2O2-induced fibroblast and 3T3-L1 cells. In addition, the confocal microscopical investigation indicated that the co-culture of H2O2-induced 3T3-L1 and fibroblast cells increases collagen type I and type III expression. From our results, we suggested that co-culture of fat cell (3T3-L1) and fibroblast cells may influence/regulate each other and made the cells able to withstand against oxidative stress and aging. It is conceivable that the same mechanism might have been occurring from cell to cell while animals are stressed by various environmental conditions.
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Affiliation(s)
| | - Sidong Kim
- Animal Research Institute, National Institute of Animal Science, Daegangrungmyun Pyuygchanggun, Kwangwondo, Seoul, 25340, South Korea
| | - Inho Hwang
- Department of Animal Science and BK21 PLUS Program, Chonbuk National University, Jeonju, 561-756, South Korea.
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Chan RCF, Kotner JS, Chuang CMH, Gaur A. Stabilization of pre-optimized multicolor antibody cocktails for flow cytometry applications. CYTOMETRY PART B-CLINICAL CYTOMETRY 2016; 92:508-524. [DOI: 10.1002/cyto.b.21371] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/13/2016] [Accepted: 03/14/2016] [Indexed: 12/17/2022]
Affiliation(s)
| | | | | | - Amitabh Gaur
- Custom Technology Team, BD Biosciences; San Diego California
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