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Wang B, He BS, Ruan XL, Zhu J, Hu R, Wang J, Li Y, Yang YH, Liu ML. An integrated microfluidics platform with high-throughput single-cell cloning array and concentration gradient generator for efficient cancer drug effect screening. Mil Med Res 2022; 9:51. [PMID: 36131323 PMCID: PMC9494811 DOI: 10.1186/s40779-022-00409-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 08/05/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Tumor cell heterogeneity mediated drug resistance has been recognized as the stumbling block of cancer treatment. Elucidating the cytotoxicity of anticancer drugs at single-cell level in a high-throughput way is thus of great value for developing precision therapy. However, current techniques suffer from limitations in dynamically characterizing the responses of thousands of single cells or cell clones presented to multiple drug conditions. METHODS We developed a new microfluidics-based "SMART" platform that is Simple to operate, able to generate a Massive single-cell array and Multiplex drug concentrations, capable of keeping cells Alive, Retainable and Trackable in the microchambers. These features are achieved by integrating a Microfluidic chamber Array (4320 units) and a six-Concentration gradient generator (MAC), which enables highly efficient analysis of leukemia drug effects on single cells and cell clones in a high-throughput way. RESULTS A simple procedure produces 6 on-chip drug gradients to treat more than 3000 single cells or single-cell derived clones and thus allows an efficient and precise analysis of cell heterogeneity. The statistic results reveal that Imatinib (Ima) and Resveratrol (Res) combination treatment on single cells or clones is much more efficient than Ima or Res single drug treatment, indicated by the markedly reduced half maximal inhibitory concentration (IC50). Additionally, single-cell derived clones demonstrate a higher IC50 in each drug treatment compared to single cells. Moreover, primary cells isolated from two leukemia patients are also found with apparent heterogeneity upon drug treatment on MAC. CONCLUSION This microfluidics-based "SMART" platform allows high-throughput single-cell capture and culture, dynamic drug-gradient treatment and cell response monitoring, which represents a new approach to efficiently investigate anticancer drug effects and should benefit drug discovery for leukemia and other cancers.
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Affiliation(s)
- Biao Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Bang-Shun He
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
| | - Xiao-Lan Ruan
- Department of Hematology, Renmin Hospital, Wuhan University, Wuhan, 430060, China
| | - Jiang Zhu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Rui Hu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Jie Wang
- Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA, 94304, USA
| | - Ying Li
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China. .,University of Chinese Academy of Sciences, Beijing, 10049, China.
| | - Yun-Huang Yang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Mai-Li Liu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology-Wuhan National Laboratory for Optoelectronics, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 10049, China
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Bhargava N, Thakur P, Muruganandam TP, Jaitly S, Gupta P, Lohani N, Goswami SG, Saravanakumar V, Bhattacharya SK, Jain S, Ramalingam S. Development of an efficient single-cell cloning and expansion strategy for genome edited induced pluripotent stem cells. Mol Biol Rep 2022. [PMID: 35637316 DOI: 10.1007/s11033-022-07621-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/19/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Disease-specific human induced pluripotent stem cells (hiPSCs) can be generated directly from individuals with known disease characteristics or alternatively be modified using genome editing approaches to introduce disease causing genetic mutations to study the biological response of those mutations. The genome editing procedure in hiPSCs is still inefficient, particularly when it comes to homology directed repair (HDR) of genetic mutations or targeted transgene insertion in the genome and single cell cloning of edited cells. In addition, genome editing processes also involve additional cellular stresses such as poor cell viability and genetic stability of hiPSCs. Therefore, efficient workflows are desired to increase genome editing application to hiPSC disease models and therapeutic applications. METHODS AND RESULTS To this end, we demonstrate an efficient workflow for feeder-free single cell clone generation and expansion in both CRISPR-mediated knock-out (KO) and knock-in (KI) hiPSC lines. Using StemFlex medium and CloneR supplement in conjunction with Matrigel cell culture matrix, we show that cell viability and expansion during single-cell cloning in edited and unedited cells is significantly enhanced. Keeping all factors into account, we have successfully achieved hiPSC single-cell survival and cloning in both edited and unedited cells with rates as maximum as 70% in less than 2 weeks. CONCLUSION This simplified and efficient workflow will allow for a new level of sophistication in generating hiPSC-based disease models to promote rapid advancement in basic research and also the development of novel cellular therapeutics.
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3
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Ding WF, Sun N, Liu ZG, Zhang X, Li X, Chen H, Feng Y. Study of the heterologous gene expression characteristics of a new clone of a cell line derived from Papilio xuthus and its serum-free adaptation. In Vitro Cell Dev Biol Anim 2022; 58:365-375. [PMID: 35653076 DOI: 10.1007/s11626-022-00687-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/28/2022] [Indexed: 11/29/2022]
Abstract
The baculovirus expression vector system using insect cells as a bioreactor has been used for in vitro expression of recombinant proteins and plays an important role in the fields of biology, agronomy, and medicine. Screening suitable host cell lines is an important part of the construction of insect cell baculovirus expression systems. In previous research, we used a single-cell cloning process with the Papilio xuthus cell line RIRI-PX1 and obtained the monoclonal cell line RIRI-PX1-C31. In this study, we compared the basic biological and recombinant protein expression characteristics of RIRI-PX1-C31 and its parent cell line RIRI-PX1 and found that the expression of recombinant β-galactosidase in RIRI-PX1-C31 was significantly higher than that in the parental cell line. Further serum-free adaptation studies confirmed that RIRI-PX1-C31 can adapt to the growth environment of Express Five Serum-free medium and that its expression level of recombinant β-galactosidase was significantly higher than that before adaptation.
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Affiliation(s)
- Wei-Feng Ding
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China.,Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming, 650224, China
| | - Na Sun
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China.,Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming, 650224, China
| | - Zhi-Gang Liu
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China.,Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming, 650224, China
| | - Xin Zhang
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China.,Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming, 650224, China
| | - Xian Li
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China
| | - Hang Chen
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China.,Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming, 650224, China
| | - Ying Feng
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China. .,Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming, 650224, China.
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4
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Munoz A, Morachis JM. High efficiency sorting and outgrowth for single-cell cloning of mammalian cell lines. Biotechnol Lett 2022; 44:1337-1346. [PMID: 36074283 PMCID: PMC9659504 DOI: 10.1007/s10529-022-03300-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/23/2022] [Indexed: 01/29/2023]
Abstract
Single-cell selection and cloning is required for multiple bioprocessing and cell engineering workflows. Dispensing efficiency and outgrowth were optimized for multiple common suspension (CHO ES, Expi293F, and Jurkat) and adherent (MCF-7, A549, CHO-K1, and HEK293) cell lines. Single-cell sorting using a low pressure microfluidic cell sorter, the WOLF Cell Sorter, was compared with limiting dilution at 0.5 cells/well to demonstrate the increased efficiency of using flow cytometry selection of cells. In this work, there was an average single cell deposition on Day 0 of 89.1% across all the cell lines tested compared to 41.2% when using limiting dilution. After growth for 14 days, 66.7% of single-cell clones sorted with the WOLF Cell Sorter survived and only 23.8% when using limiting dilution. Using the WOLF Cell Sorter for cell line development results in higher viable single-cell colonies and the ability to select subpopulations of single-cells using multiple parameters.
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Miao X, Li Y, Zheng C, Wang L, Jin C, Chen L, Mi S, Zhai W, Wang QF, Cai J. A promising iPS-based single-cell cloning strategy revealing signatures of somatic mutations in heterogeneous normal cells. Comput Struct Biotechnol J 2020; 18:2326-2335. [PMID: 32994891 PMCID: PMC7493045 DOI: 10.1016/j.csbj.2020.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 08/15/2020] [Accepted: 08/26/2020] [Indexed: 11/24/2022] Open
Abstract
Single-cell genomics has advanced rapidly as trace-DNA amplification technologies evolved. However, current technologies are subject to a variety of pitfalls such as contamination, uneven genomic coverage, and amplification errors. Even for the "golden" strategy of single stem cell-derived clonal formation, high-fidelity amplification is applicable merely to single stem cells. It's still challenging to accurately define somatic mutations of a single cell in various cell types. Herein, we provided evidence, for the first time, to prove that induced pluripotent stem cells (iPS cells or iPSC), being a single somatic cell-derived clone, are recording almost identical (>90%) mutational profile of the initial cell progenitor. This finding demonstrates iPS technique, applicable to any cell type, can be utilized as a cell cloning strategy favorable for single-cell genomic amplification. This novel strategy is not limited by cell-type constraints or amplification artifacts, and thus enables our detailed investigation on the characteristics of somatic mutations in heterogeneous normal cells.
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Affiliation(s)
- Xuexia Miao
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China
| | - Yueying Li
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Caihong Zheng
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China
| | - Lifei Wang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chen Jin
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Chen
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuangli Mi
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiwei Zhai
- Department of Human Genetics, Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore 138672, Singapore.,Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, China
| | - Qian-Fei Wang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Cai
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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Zitzmann J, Schreiber C, Eichmann J, Bilz RO, Salzig D, Weidner T, Czermak P. Single-cell cloning enables the selection of more productive Drosophila melanogaster S2 cells for recombinant protein expression. Biotechnol Rep (Amst) 2018; 19:e00272. [PMID: 29998071 PMCID: PMC6037645 DOI: 10.1016/j.btre.2018.e00272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/18/2018] [Accepted: 06/22/2018] [Indexed: 11/16/2022]
Abstract
The generation of monoclonal cell lines is an important early process development step for recombinant protein production. Although single-cell cloning is an established method in mammalian cell lines, straightforward protocols are not yet available for insect cells. We describe a new method for the generation of monoclonal insect cells without using fetal bovine serum and/or feeder cells pretreated by irradiation or exposure to mitomycin. Highly productive clones of Drosophila melanogaster S2 cells were prepared in a two-step procedure, comprising the establishment of a polyclonal population and subsequent single cell isolation by limiting dilution. Necessary growth factors were provided by co-cultivation of single transformants with untransfected feeder cells, which were later removed by antibiotic selection. Enhanced expression of EGFP and two target peptides was confirmed by flow cytometry and dot/western blotting. Highly productive clones were stable, showed a uniform expression profile and typically a sixfold to tenfold increase in cell-specific productivity.
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Key Words
- AMP, antimicrobial peptide/protein
- BR021, Harmonia axyridis antimicrobial peptide BR021
- BSA, bovine serum albumin
- D. melanogaster S2 cells
- DMSO, dimethyl sulfoxide
- EGFP, enhanced green fluorescent protein
- FACS, fluorescence activated cell sorting
- FBS, fetal bovine serum
- GMP, good manufacturing practice
- GmGlv, Galleria mellonella antimicrobial peptide Gloverin
- Insect cell culture
- Monoclonal cell line
- OD600, optical density at 600nm
- PBS, phosphate-buffered saline
- PCR, polymerase chain reaction
- PVDF, polyvinylidene difluoride
- RMCE, recombinase mediated cassette exchange
- Recombinant protein expression
- SDS-PAGE, sodium dodecylsulfate polyacrylamide gel electrophoresis
- SFM, serum free medium
- Sf9, clonal isolate of Spodoptera frugiperda Sf21 cells
- Single-cell cloning
- Stably transformed
- rS2, recombinant Drosophila melanogaster Schneider 2 cells
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Affiliation(s)
- Jan Zitzmann
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
| | - Christine Schreiber
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
| | - Joel Eichmann
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
| | - Roberto Otmar Bilz
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
| | - Denise Salzig
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
| | - Tobias Weidner
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
| | - Peter Czermak
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Giessen, Germany
- Department of Chemical Engineering, Kansas State University, Manhattan KS, USA
- Faculty of Biology and Chemistry, Justus-Liebig University of Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Project group Bioresources, Giessen, Germany
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7
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Chen YH, Pruett-Miller SM. Improving single-cell cloning workflow for gene editing in human pluripotent stem cells. Stem Cell Res 2018; 31:186-192. [PMID: 30099335 DOI: 10.1016/j.scr.2018.08.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 07/27/2018] [Accepted: 08/02/2018] [Indexed: 01/01/2023] Open
Abstract
The availability of human pluripotent stem cells (hPSCs) and progress in genome engineering technology have altered the way we approach scientific research and drug development screens. Unfortunately, the procedures for genome editing of hPSCs often subject cells to harsh conditions that compromise viability: a major problem that is compounded by the innate challenge of single-cell culture. Here we describe a generally applicable workflow that supports single-cell cloning and expansion of hPSCs after genome editing and single-cell sorting. Stem-Flex and RevitaCell supplement, in combination with Geltrex or Vitronectin (VN), promote reliable single-cell growth in a feeder-free and defined environment. Characterization of final genome-edited clones reveals that pluripotency and normal karyotype are retained following this single-cell culture protocol. This time-efficient and simplified culture method paves the way for high-throughput hPSC culture and will be valuable for both basic research and clinical applications.
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Affiliation(s)
- Yi-Hsien Chen
- Washington University School of Medicine, Department of Genetics, St. Louis 63110, USA; Genome Engineering and iPSC Center, USA.
| | - Shondra M Pruett-Miller
- St. Jude Children's Research Hospital, Department of Cell & Molecular Biology, Memphis 38105, USA; Center for Advanced Genome Engineering, USA.
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Fasler-Kan E, Aliu N, Wunderlich K, Ketterer S, Ruggiero S, Berger S, Meyer P. The Retinal Pigment Epithelial Cell Line (ARPE-19) Displays Mosaic Structural Chromosomal Aberrations. Methods Mol Biol 2018; 1745:305-314. [PMID: 29476476 DOI: 10.1007/978-1-4939-7680-5_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The retinal pigment epithelial cell line ARPE-19 was established in 1996 and remains widely used today for biomedical and in particular ophthalmology research. We have analyzed the chromosomes of the ARPE-19 cell line and found cultured cells exist as a heterogeneous mixture having both normal karyotypes and chromosomal rearrangements. In ARPE-19 cells, we observed metaphases with a single translocation t(15;19) and metaphases with two translocations t(5;15) and t(15;19) and a derivative chromosome 9. Aneuploidies have also been detected (monosomy: -16; trisomy: +11, +18). Multiple attempts to isolate clones with a normal karyotype from those with aberrant karyotypes failed due to senescence of cells of normal karyotypes. We could, however, isolate clones with the translocation t(15;19) and clones with two translocations t(5;15) and t(15;19). In continued cell culture after second subcloning for 30 passages, all clones maintained their cytogenetic integrity.We have further investigated the chromosomal profiles of the ARPE-19 cell line from another laboratory and observed cells with a normal karyotype as well as abnormalities in chromosomes 6p and 11q. The DNA profiles of the ARPE-19 cells from both labs were identical to the ATCC profiles, excluding contamination with other cell lines. Since chromosomal translocations in ARPE-19 cells differ from lab to lab and display a mosaicism for structural chromosomal aberrations, researchers dealing with ARPE-19 cells should screen their stocks for chromosomal aberrations and proceed with caution against misinterpretations during experimental manipulations with this cell line. This chapter describes in detail our laboratory methods for single cell cloning, karyotype analysis and fluorescence in situ hybridization (FISH), which we used for the identification and characterization of chromosomal translocations in the retinal pigment epithelial cell line ARPE-19.
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Affiliation(s)
- Elizaveta Fasler-Kan
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland.
- Department of Pediatric Surgery, Inselspital, University Hospital Bern and Department of Biomedical Research, University of Bern, Bern, Switzerland.
| | - Nijas Aliu
- Department of Human Genetics, University Children's Hospital, Inselspital, Bern, Switzerland
| | - Kerstin Wunderlich
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
- Department of Ophthalmology, University of Basel, Basel, Switzerland
| | - Sylvia Ketterer
- Department of Biomedicine, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Sabrina Ruggiero
- Department of Pediatric Surgery, Inselspital, University Hospital Bern and Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Steffen Berger
- Department of Pediatric Surgery, Inselspital, University Hospital Bern and Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Peter Meyer
- Department of Ophthalmology, University of Basel, Basel, Switzerland
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Matsumura T, Tatsumi K, Noda Y, Nakanishi N, Okonogi A, Hirano K, Li L, Osumi T, Tada T, Kotera H. Single-cell cloning and expansion of human induced pluripotent stem cells by a microfluidic culture device. Biochem Biophys Res Commun 2014; 453:131-7. [PMID: 25264198 DOI: 10.1016/j.bbrc.2014.09.081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 09/18/2014] [Indexed: 01/09/2023]
Abstract
The microenvironment of cells, which includes basement proteins, shear stress, and extracellular stimuli, should be taken into consideration when examining physiological cell behavior. Although microfluidic devices allow cellular responses to be analyzed with ease at the single-cell level, few have been designed to recover cells. We herein demonstrated that a newly developed microfluidic device helped to improve culture conditions and establish a clonality-validated human pluripotent stem cell line after tracing its growth at the single-cell level. The device will be a helpful tool for capturing various cell types in the human body that have not yet been established in vitro.
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Affiliation(s)
- Taku Matsumura
- Research and Development Division, ARKRAY, Inc., Kyoto 602-0008, Japan
| | - Kazuya Tatsumi
- Mechanical Engineering and Science, Faculty of Engineering, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yuichiro Noda
- Research and Development Division, ARKRAY, Inc., Kyoto 602-0008, Japan
| | - Naoyuki Nakanishi
- Research and Development Division, ARKRAY, Inc., Kyoto 602-0008, Japan
| | - Atsuhito Okonogi
- Research and Development Division, ARKRAY, Inc., Kyoto 602-0008, Japan
| | - Kunio Hirano
- Research and Development Division, ARKRAY, Inc., Kyoto 602-0008, Japan.
| | - Liu Li
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Kyoto, Japan
| | - Takashi Osumi
- Research and Development Division, ARKRAY, Inc., Kyoto 602-0008, Japan
| | - Takashi Tada
- Stem Cell Engineering, Institute for Frontier Medical Sciences, Kyoto University, 53 Kawahara-cho, Shogo-in, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hidetoshi Kotera
- Micro Engineering, Faculty of Engineering, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
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