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Zhou P, Hu M, Li Q, Yang G. Both intrinsic and microenvironmental factors contribute to the regulation of stem cell quiescence. J Cell Physiol 2024. [PMID: 38860372 DOI: 10.1002/jcp.31325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/06/2024] [Accepted: 05/13/2024] [Indexed: 06/12/2024]
Abstract
Precise regulation of stem cell quiescence is essential for tissue development and homeostasis. Therefore, its aberrant regulation is intimately correlated with various human diseases. However, the detailed mechanisms of stem cell quiescence and its specific role in the pathogenesis of various diseases remain to be determined. Recent studies have revealed that the intrinsic and microenvironmental factors are the potential candidates responsible for the orderly switch between the dormant and activated states of stem cells. In addition, defects in signaling pathways related to internal and external factors of stem cells might contribute to the initiation and development of diseases by altering the dormancy of stem cells. In this review, we focus on the mechanisms underlying stem cell quiescence, especially the involvement of intrinsic and microenvironmental factors. In addition, we discuss the relationship between the anomalies of stem cell quiescence and related diseases, hopefully providing therapeutic insights for developing novel treatments.
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Affiliation(s)
- Ping Zhou
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Mingzheng Hu
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Qingchao Li
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Guiwen Yang
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
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2
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Chang Y, Jin G, Luo W, Luo Q, Jung J, Hummel SN, Torregrosa-Allen S, Elzey BD, Low PS, Lian XL, Bao X. Engineered human pluripotent stem cell-derived natural killer cells with PD-L1 responsive immunological memory for enhanced immunotherapeutic efficacy. Bioact Mater 2023; 27:168-180. [PMID: 37091063 PMCID: PMC10113709 DOI: 10.1016/j.bioactmat.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/14/2023] [Accepted: 03/22/2023] [Indexed: 04/08/2023] Open
Abstract
Adoptive chimeric antigen receptor (CAR)-engineered natural killer (NK) cells have shown promise in treating various cancers. However, limited immunological memory and access to sufficient numbers of allogenic donor cells have hindered their broader preclinical and clinical applications. Here, we first assess eight different CAR constructs that use an anti-PD-L1 nanobody and/or universal anti-fluorescein (FITC) single-chain variable fragment (scFv) to enhance antigen-specific proliferation and anti-tumor cytotoxicity of NK-92 cells against heterogenous solid tumors. We next genetically engineer human pluripotent stem cells (hPSCs) with optimized CARs and differentiate them into functional dual CAR-NK cells. The tumor microenvironment responsive anti-PD-L1 CAR effectively promoted hPSC-NK cell proliferation and cytotoxicity through antigen-dependent activation of phosphorylated STAT3 (pSTAT3) and pSTAT5 signaling pathways via an intracellular truncated IL-2 receptor β-chain (ΔIL-2Rβ) and STAT3-binding tyrosine-X-X-glutamine (YXXQ) motif. Anti-tumor activities of PD-L1-induced memory-like hPSC-NK cells were further boosted by administering a FITC-folate bi-specific adapter that bridges between a programmable anti-FITC CAR and folate receptor alpha-expressing breast tumor cells. Collectively, our hPSC CAR-NK engineering platform is modular and could constitute a realistic strategy to manufacture off-the-shelf CAR-NK cells with immunological memory-like phenotype for targeted immunotherapy.
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3
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Chang Y, Cai X, Syahirah R, Yao Y, Xu Y, Jin G, Bhute VJ, Torregrosa-Allen S, Elzey BD, Won YY, Deng Q, Lian XL, Wang X, Eniola-Adefeso O, Bao X. CAR-neutrophil mediated delivery of tumor-microenvironment responsive nanodrugs for glioblastoma chemo-immunotherapy. Nat Commun 2023; 14:2266. [PMID: 37080958 PMCID: PMC10119091 DOI: 10.1038/s41467-023-37872-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 04/03/2023] [Indexed: 04/22/2023] Open
Abstract
Glioblastoma (GBM) is one of the most aggressive and lethal solid tumors in human. While efficacious therapeutics, such as emerging chimeric antigen receptor (CAR)-T cells and chemotherapeutics, have been developed to treat various cancers, their effectiveness in GBM treatment has been hindered largely by the blood-brain barrier and blood-brain-tumor barriers. Human neutrophils effectively cross physiological barriers and display effector immunity against pathogens but the short lifespan and resistance to genome editing of primary neutrophils have limited their broad application in immunotherapy. Here we genetically engineer human pluripotent stem cells with CRISPR/Cas9-mediated gene knock-in to express various anti-GBM CAR constructs with T-specific CD3ζ or neutrophil-specific γ-signaling domains. CAR-neutrophils with the best anti-tumor activity are produced to specifically and noninvasively deliver and release tumor microenvironment-responsive nanodrugs to target GBM without the need to induce additional inflammation at the tumor sites. This combinatory chemo-immunotherapy exhibits superior and specific anti-GBM activities, reduces off-target drug delivery and prolongs lifespan in female tumor-bearing mice. Together, this biomimetic CAR-neutrophil drug delivery system is a safe, potent and versatile platform for treating GBM and possibly other devastating diseases.
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Affiliation(s)
- Yun Chang
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Purdue University Institute for Cancer Research, West Lafayette, IN, 47907, USA
| | - Xuechao Cai
- Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ramizah Syahirah
- Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Yuxing Yao
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Yang Xu
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Gyuhyung Jin
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Purdue University Institute for Cancer Research, West Lafayette, IN, 47907, USA
| | - Vijesh J Bhute
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | | | - Bennett D Elzey
- Purdue University Institute for Cancer Research, West Lafayette, IN, 47907, USA
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, 47907, USA
| | - You-Yeon Won
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Purdue University Institute for Cancer Research, West Lafayette, IN, 47907, USA
| | - Qing Deng
- Purdue University Institute for Cancer Research, West Lafayette, IN, 47907, USA
- Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Xiaojun Lance Lian
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
- The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA.
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - Xiaoguang Wang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA.
- Sustainability Institute, The Ohio State University, Columbus, OH, 43210, USA.
| | | | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA.
- Purdue University Institute for Cancer Research, West Lafayette, IN, 47907, USA.
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4
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HN1 Is Enriched in the S-Phase, Phosphorylated in Mitosis, and Contributes to Cyclin B1 Degradation in Prostate Cancer Cells. BIOLOGY 2023; 12:biology12020189. [PMID: 36829467 PMCID: PMC9952942 DOI: 10.3390/biology12020189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/18/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023]
Abstract
HN1 has previously been shown as overexpressed in various cancers. In Prostate cancer, it regulates AR signaling and centrosome-related functions. Previously, in two different studies, HN1 expression has been observed as inversely correlated with Cyclin B1. However, HN1 interacting partners and the role of HN1 interactions in cell cycle pathways have not been completely elucidated. Therefore, we used Prostate cancer cell lines again and utilized both transient and stable inducible overexpression systems to delineate the role of HN1 in the cell cycle. HN1 characterization was performed using treatments of kinase inhibitors, western blotting, flow cytometry, immunofluorescence, cellular fractionation, and immunoprecipitation approaches. Our findings suggest that HN1 overexpression before mitosis (post-G2), using both transient and stable expression systems, leads to S-phase accumulation and causes early mitotic exit after post-G2 overexpression. Mechanistically, HN1 interacted with Cyclin B1 and increased its degradation via ubiquitination through stabilized Cdh1, which is a co-factor of the APC/C complex. Stably HN1-expressing cells exhibited a reduced Cdt1 loading onto chromatin, demonstrating an exit from a G1 to S phenotype. We found HN1 and Cdh1 interaction as a new regulator of the Cyclin B1/CDK1 axis in mitotic regulation which can be explored further to dissect the roles of HN1 in the cell cycle.
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Chang Y, Syahirah R, Wang X, Jin G, Torregrosa-Allen S, Elzey BD, Hummel SN, Wang T, Li C, Lian X, Deng Q, Broxmeyer HE, Bao X. Engineering chimeric antigen receptor neutrophils from human pluripotent stem cells for targeted cancer immunotherapy. Cell Rep 2022; 40:111128. [PMID: 35858579 PMCID: PMC9327527 DOI: 10.1016/j.celrep.2022.111128] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 04/07/2022] [Accepted: 06/30/2022] [Indexed: 11/17/2022] Open
Abstract
Neutrophils, the most abundant white blood cells in circulation, are closely related to cancer development and progression. Healthy primary neutrophils present potent cytotoxicity against various cancer cell lines through direct contact and via generation of reactive oxygen species. However, due to their short half-life and resistance to genetic modification, neutrophils have not yet been engineered with chimeric antigen receptors (CARs) to enhance their antitumor cytotoxicity for targeted immunotherapy. Here, we genetically engineered human pluripotent stem cells with synthetic CARs and differentiated them into functional neutrophils by implementing a chemically defined platform. The resulting CAR neutrophils present superior and specific cytotoxicity against tumor cells both in vitro and in vivo. Collectively, we established a robust platform for massive production of CAR neutrophils, paving the way to myeloid cell-based therapeutic strategies that would boost current cancer-treatment approaches. Neutrophils are important innate immune cells that mediate both protumor and antitumor activities. Chang et al. genetically engineer human pluripotent stem cells to produce chimeric antigen receptor (CAR) neutrophils that display superior antitumor activities and improve survival in an in situ glioblastoma xenograft model.
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Affiliation(s)
- Yun Chang
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN 47907, USA
| | - Ramizah Syahirah
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Xuepeng Wang
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Gyuhyung Jin
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN 47907, USA
| | | | - Bennett D Elzey
- Purdue University Center for Cancer Research, West Lafayette, IN 47907, USA; Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA
| | - Sydney N Hummel
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Tianqi Wang
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Can Li
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Xiaojun Lian
- Department of Biomedical Engineering, The Huck Institutes of the Life Sciences, Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA.
| | - Qing Deng
- Purdue University Center for Cancer Research, West Lafayette, IN 47907, USA; Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN 47907, USA.
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Chang Y, Syahirah R, Oprescu SN, Wang X, Jung J, Cooper SH, Torregrosa-Allen S, Elzey BD, Hsu AY, Randolph LN, Sun Y, Kuang S, Broxmeyer HE, Deng Q, Lian X, Bao X. Chemically-defined generation of human hemogenic endothelium and definitive hematopoietic progenitor cells. Biomaterials 2022; 285:121569. [PMID: 35567999 PMCID: PMC10065832 DOI: 10.1016/j.biomaterials.2022.121569] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 04/23/2022] [Accepted: 05/03/2022] [Indexed: 12/17/2022]
Abstract
Human hematopoietic stem cells (HSCs), which arise from aorta-gonad-mesonephros (AGM), are widely used to treat blood diseases and cancers. However, a technique for their robust generation in vitro is still missing. Here we show temporal manipulation of Wnt signaling is sufficient and essential to induce AGM-like hematopoiesis from human pluripotent stem cells. TGFβ inhibition at the stage of aorta-like SOX17+CD235a- hemogenic endothelium yielded AGM-like hematopoietic progenitors, which closely resembled primary cord blood HSCs at the transcriptional level and contained diverse lineage-primed progenitor populations via single cell RNA-sequencing analysis. Notably, the resulting definitive cells presented lymphoid and myeloid potential in vitro; and could home to a definitive hematopoietic site in zebrafish and rescue bloodless zebrafish after transplantation. Engraftment and multilineage repopulating activities were also observed in mouse recipients. Together, our work provided a chemically-defined and feeder-free culture platform for scalable generation of AGM-like hematopoietic progenitor cells, leading to enhanced production of functional blood and immune cells for various therapeutic applications.
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Affiliation(s)
- Yun Chang
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA
| | - Ramizah Syahirah
- Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Stephanie N Oprescu
- Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA; Department of Animal Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Xuepeng Wang
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Juhyung Jung
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA
| | - Scott H Cooper
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | | | - Bennett D Elzey
- Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA; Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, 47907, USA
| | - Alan Y Hsu
- Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA; Department of Pathology, Harvard Medical School, Boston, MA, 02115, USA
| | - Lauren N Randolph
- Departments of Biomedical Engineering, Biology, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Yufei Sun
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Shihuan Kuang
- Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA; Department of Animal Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Qing Deng
- Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA; Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA.
| | - Xiaojun Lian
- Departments of Biomedical Engineering, Biology, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, 47907, USA; Purdue University Center for Cancer Research, West Lafayette, IN, 47907, USA.
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7
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Kohrman AQ, Kim-Yip RP, Posfai E. Imaging developmental cell cycles. Biophys J 2021; 120:4149-4161. [PMID: 33964274 PMCID: PMC8516676 DOI: 10.1016/j.bpj.2021.04.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/14/2021] [Accepted: 04/30/2021] [Indexed: 01/05/2023] Open
Abstract
The last decade has seen a major expansion in development of live biosensors, the tools needed to genetically encode them into model organisms, and the microscopic techniques used to visualize them. When combined, these offer us powerful tools with which to make fundamental discoveries about complex biological processes. In this review, we summarize the availability of biosensors to visualize an essential cellular process, the cell cycle, and the techniques for single-cell tracking and quantification of these reporters. We also highlight studies investigating the connection of cellular behavior to the cell cycle, particularly through live imaging, and anticipate exciting discoveries with the combination of these technologies in developmental contexts.
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Affiliation(s)
- Abraham Q Kohrman
- Department of Molecular Biology, Princeton University, Princeton, New Jersey
| | - Rebecca P Kim-Yip
- Department of Molecular Biology, Princeton University, Princeton, New Jersey
| | - Eszter Posfai
- Department of Molecular Biology, Princeton University, Princeton, New Jersey.
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8
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Hellwarth PB, Chang Y, Das A, Liang P, Lian X, Repina NA, Bao X. Optogenetic-mediated cardiovascular differentiation and patterning of human pluripotent stem cells. ADVANCED GENETICS (HOBOKEN, N.J.) 2021; 2:e202100011. [PMID: 36620431 PMCID: PMC9744544 DOI: 10.1002/ggn2.202100011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/11/2021] [Indexed: 01/11/2023]
Abstract
Precise spatial and temporal regulation of dynamic morphogen signals during human development governs the processes of cell proliferation, migration, and differentiation to form organized tissues and organs. Tissue patterns spontaneously emerge in various human pluripotent stem cell (hPSC) models. However, the lack of molecular methods for precise control over signal dynamics limits the reproducible production of tissue patterns and a mechanistic understanding of self-organization. We recently implemented an optogenetic-based OptoWnt platform for light-controllable regulation of Wnt/β-catenin signaling in hPSCs for in vitro studies. Using engineered illumination devices to generate light patterns and thus precise spatiotemporal control over Wnt activation, here we triggered spatially organized transcriptional changes and mesoderm differentiation of hPSCs. In this way, the OptoWnt system enabled robust endothelial cell differentiation and cardiac tissue patterning in vitro. Our results demonstrate that spatiotemporal regulation of signaling pathways via synthetic OptoWnt enables instructive stem cell fate engineering and tissue patterning.
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Affiliation(s)
- Peter B. Hellwarth
- Davidson School of Chemical Engineering, Purdue University Center for Cancer ResearchPurdue UniversityWest LafayetteIndianaUSA
| | - Yun Chang
- Davidson School of Chemical Engineering, Purdue University Center for Cancer ResearchPurdue UniversityWest LafayetteIndianaUSA
| | - Arundhati Das
- Davidson School of Chemical Engineering, Purdue University Center for Cancer ResearchPurdue UniversityWest LafayetteIndianaUSA
| | - Po‐Yu Liang
- Davidson School of Chemical Engineering, Purdue University Center for Cancer ResearchPurdue UniversityWest LafayetteIndianaUSA
| | - Xiaojun Lian
- Department of Biomedical Engineering, Huck Institutes of the Life Sciences, Department of BiologyPennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Nicole A. Repina
- Friedrich Miescher Institute for Biomedical Research (FMI)BaselSwitzerland
| | - Xiaoping Bao
- Davidson School of Chemical Engineering, Purdue University Center for Cancer ResearchPurdue UniversityWest LafayetteIndianaUSA
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9
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Induced Cardiomyocyte Proliferation: A Promising Approach to Cure Heart Failure. Int J Mol Sci 2021; 22:ijms22147720. [PMID: 34299340 PMCID: PMC8303201 DOI: 10.3390/ijms22147720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 12/31/2022] Open
Abstract
Unlike some lower vertebrates which can completely regenerate their heart, the human heart is a terminally differentiated organ. Cardiomyocytes lost during cardiac injury and heart failure cannot be replaced due to their limited proliferative capacity. Therefore, cardiac injury generally leads to progressive failure. Here, we summarize the latest progress in research on methods to induce cardiomyocyte cell cycle entry and heart repair through the alteration of cardiomyocyte plasticity, which is emerging as an effective strategy to compensate for the loss of functional cardiomyocytes and improve the impaired heart functions.
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10
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Tomura M, Ikebuchi R, Moriya T, Kusumoto Y. Tracking the fate and migration of cells in live animals with cell-cycle indicators and photoconvertible proteins. J Neurosci Methods 2021; 355:109127. [PMID: 33722643 DOI: 10.1016/j.jneumeth.2021.109127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 12/13/2022]
Abstract
Cell migration and cell proliferation are the basic principles that make up a living organism, and both biologically and medically. In order to understand living organism and biological phenomena, it is essential to track the migration, proliferation, and fate of cells in living cells and animals and to clarify the properties and molecular expression of cells. Recent developments in novel fluorescent proteins have made it possible to observe cell migration and proliferation as the cell cycle at the single-cell level in living individuals and tissues. Here, we introduce cell cycle visualization of living cells and animals by Fucci (Fluorescent Ubiquitination-based Cell Cycle Indicator) system and in situ cell labeling of cells and tracking cell migration by photoactivatable and photoconvertible proteins. In addition, we will present our established methods as an example of combines above tools with single-cell molecular expression analysis to reveal the fate of migrating cells at single cell level.
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Affiliation(s)
- Michio Tomura
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan.
| | - Ryoyo Ikebuchi
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan; Research Fellow of Japan Society for the Promotion of Science, Japan; Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Taiki Moriya
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan
| | - Yutaka Kusumoto
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan
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