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Xiao Y, Hu M, Lin Q, Zhang T, Li S, Shu L, Song X, Xu X, Meng W, Li X, Xu H, Mo X. Dopey2 and Pcdh7 orchestrate the development of embryonic neural stem cells/ progenitors in zebrafish. iScience 2023; 26:106273. [PMID: 36936789 PMCID: PMC10014312 DOI: 10.1016/j.isci.2023.106273] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 01/18/2023] [Accepted: 02/20/2023] [Indexed: 02/27/2023] Open
Abstract
DOPEY2 has been shown to be associated with Down syndrome and PCDH7 might be involved in Rett syndrome and MECP2 duplication syndrome. The mechanism how both proteins play roles in these syndromes are largely unknown. Here, we show that Dopey2 and Pcdh7 balance the proliferation and differentiation of neural stem cells and progenitors during embryonic neurogenesis to generate proper size and architecture of zebrafish brains. Dopey2 and Pcdh7 mutually restricted expression of each other in zebrafish embryos. Dopey2 was responsible for the proliferation of neural stem cells/progenitors, whereas Pcdh7 was responsible for the differentiation of neural stem cells/progenitors. Both proteins were shown to orchestrate the proper development and arrangement of neural cells in zebrafish embryonic brains. The results provide an insight into mechanisms to understand how the embryonic brain is constituted and how developmental defects occur in the brains of patients with Down syndrome, Rett syndrome, or MECP2 duplication syndrome.
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Affiliation(s)
- Yue Xiao
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Min Hu
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Qiyan Lin
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Ting Zhang
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Siying Li
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Linjuan Shu
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xiuli Song
- Hangzhou HuaAn Biotechnology Co.Ltd, Hangzhou, China
| | - Xiaoyong Xu
- Hangzhou HuaAn Biotechnology Co.Ltd, Hangzhou, China
| | - Wentong Meng
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xue Li
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Hong Xu
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xianming Mo
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
- Corresponding author
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Anggraini D, Ota N, Shen Y, Tang T, Tanaka Y, Hosokawa Y, Li M, Yalikun Y. Recent advances in microfluidic devices for single-cell cultivation: methods and applications. LAB ON A CHIP 2022; 22:1438-1468. [PMID: 35274649 DOI: 10.1039/d1lc01030a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Single-cell analysis is essential to improve our understanding of cell functionality from cellular and subcellular aspects for diagnosis and therapy. Single-cell cultivation is one of the most important processes in single-cell analysis, which allows the monitoring of actual information of individual cells and provides sufficient single-cell clones and cell-derived products for further analysis. The microfluidic device is a fast-rising system that offers efficient, effective, and sensitive single-cell cultivation and real-time single-cell analysis conducted either on-chip or off-chip. Here, we introduce the importance of single-cell cultivation from the aspects of cellular and subcellular studies. We highlight the materials and structures utilized in microfluidic devices for single-cell cultivation. We further discuss biological applications utilizing single-cell cultivation-based microfluidics, such as cellular phenotyping, cell-cell interactions, and omics profiling. Finally, present limitations and future prospects of microfluidics for single-cell cultivation are also discussed.
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Affiliation(s)
- Dian Anggraini
- Division of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Nobutoshi Ota
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yigang Shen
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tao Tang
- Division of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Yo Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoichiroh Hosokawa
- Division of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Ming Li
- School of Engineering, Macquarie University, Sydney 2122, Australia.
| | - Yaxiaer Yalikun
- Division of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
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A Molecular Analysis of Cytokine Content across Extracellular Vesicles, Secretions, and Intracellular Space from Different Site-Specific Adipose-Derived Stem Cells. Int J Mol Sci 2021; 23:ijms23010397. [PMID: 35008824 PMCID: PMC8745205 DOI: 10.3390/ijms23010397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 11/16/2022] Open
Abstract
Cytokines are multifunctional small proteins that have a vital influence on inflammatory states of tissues and play a role in signalling and cellular control mechanisms. Cytokine expression has primarily been viewed as a form of direct secretion of molecules through an active transportation; however, other forms of active transport such as extracellular vesicles are at play. This is particularly important in stem cells where signalling molecules are key to communication managing the levels of proliferation, migration, and differentiation into mature cells. This study investigated cytokines from intracellular content, direct cellular secretions, and extracellular vesicles from adult adipose-derived stem cells isolated from three distinct anatomical locations: abdomen, thigh, and chin. The cells were cultured investigated using live cell microscopy, cytokine assays, and bioinformatics analysis. The cytokines quantified and examined from each sample type showed a distinct difference between niche areas and sample types. The varying levels of TNF-alpha, IL-6 and IL-8 cytokines were shown to play a crucial role in signalling pathways such as MAPK, ERK1/2 and JAK-STAT in cells. On the other hand, the chemotactic cytokines IL-1rn, Eotaxin, IP-10 and MCP-1 showed the most prominent changes across extracellular vesicles with roles in noncanonical signalling. By examining the local and tangential roles of cytokines in stem cells, their roles in signalling and in regenerative mechanisms may be further understood.
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Meyfour A, Pahlavan S, Mirzaei M, Krijgsveld J, Baharvand H, Salekdeh GH. The quest of cell surface markers for stem cell therapy. Cell Mol Life Sci 2021; 78:469-495. [PMID: 32710154 PMCID: PMC11073434 DOI: 10.1007/s00018-020-03602-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/10/2020] [Accepted: 07/17/2020] [Indexed: 12/15/2022]
Abstract
Stem cells and their derivatives are novel pharmaceutics that have the potential for use as tissue replacement therapies. However, the heterogeneous characteristics of stem cell cultures have hindered their biomedical applications. In theory and practice, when cell type-specific or stage-specific cell surface proteins are targeted by unique antibodies, they become highly efficient in detecting and isolating specific cell populations. There is a growing demand to identify reliable and actionable cell surface markers that facilitate purification of particular cell types at specific developmental stages for use in research and clinical applications. The identification of these markers as very important members of plasma membrane proteins, ion channels, transporters, and signaling molecules has directly benefited from proteomics and tools for proteomics-derived data analyses. Here, we review the methodologies that have played a role in the discovery of cell surface markers and introduce cutting edge single cell proteomics as an advanced tool. We also discuss currently available specific cell surface markers for stem cells and their lineages, with emphasis on the nervous system, heart, pancreas, and liver. The remaining gaps that pertain to the discovery of these markers and how single cell proteomics and identification of surface markers associated with the progenitor stages of certain terminally differentiated cells may pave the way for their use in regenerative medicine are also discussed.
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Affiliation(s)
- Anna Meyfour
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Sara Pahlavan
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mehdi Mirzaei
- Department of Molecular Sciences, Macquarie University, Sydney, NSW, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, NSW, Australia
| | - Jeroen Krijgsveld
- German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, Heidelberg, Germany
- Medical Faculty, Heidelberg University, Im Neuenheimer Feld 672, Heidelberg, Germany
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Ghasem Hosseini Salekdeh
- Department of Molecular Sciences, Macquarie University, Sydney, NSW, Australia.
- Department of Molecular Systems Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Banihashem St, P.O. Box: 16635-148, 1665659911, Tehran, Iran.
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Luo J, Zhou Y, Chen Q, Zhao X, Zhang M. Kidins220/ARMS Expression Confers Proliferation But Independent of Self-Renewal in Mouse Embryonic Stem Cells. Cell Reprogram 2019; 20:365-370. [PMID: 31251671 DOI: 10.1089/cell.2018.0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Embryonic stem cells (ESCs) are characterized by their ability to self-renew and their potential to differentiate into any cell type. Therefore, identification of novel molecular markers to verify the pluripotent status of mouse ESCs (mESCs) is of great significance. Kinase D interacting substrate of 220 kDa (Kidins220)/ankyrin repeat-rich membrane spanning (ARMS) plays a crucial role in the integration of growth factor receptor pathways during embryonic development. However, the role of Kidins220/ARMS in ESCs is still unknown. To elucidate the effects of Kidins220/ARMS on ESCs, we performed a knockdown of the Kidins220/ARMS gene by RNA interference. To our surprise, downregulation of Kidins220/ARMS did not alter the pluripotent state of mESCs. In contrast, it was essential for the proliferation and survival of ESCs. Furthermore, downregulation of the ARMS gene limited the migration of embryoid body cells derived from mESCs. This study indicates novel roles of Kidins220/ARMS in ESCs, which may represent valuable targets for future clinical applications of ESCs.
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Affiliation(s)
- Jingfeng Luo
- 1 Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine , Hangzhou, China
| | - Yang Zhou
- 2 Medical School, Hangzhou Normal University , Hangzhou, China
| | - Qi Chen
- 3 The Institute of Genetics, College of life sciences, Zhejiang University , Hangzhou, China
| | - Xiaoli Zhao
- 3 The Institute of Genetics, College of life sciences, Zhejiang University , Hangzhou, China
| | - Ming Zhang
- 3 The Institute of Genetics, College of life sciences, Zhejiang University , Hangzhou, China
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6
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Jin L, Ni J, Tao Y, Weng X, Zhu Y, Yan J, Hu B. N-acetylcysteine attenuates PM 2.5-induced apoptosis by ROS-mediated Nrf2 pathway in human embryonic stem cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 666:713-720. [PMID: 30818202 DOI: 10.1016/j.scitotenv.2019.02.307] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
While the effects of fine particulate matter (PM2.5) on embryonic toxicity are widely accepted, its exact mechanisms have not yet been fully elucidated, which partially attribute to lack of ideal research model. Embryonic stem cells (ESCs) have the capacity to differentiate into all cell types of three germ layers. Thus, they are ideal resources for the reproductive toxicity assessment in vitro. In the present study, we investigated the effects of PM2.5 exposure on the oxidative stress and apoptosis of human ESCs (hESCs) and its possible mechanism. Our results showed that strong cytotoxicity high reactive oxygen species (ROS) level and fragmentation of nuclei were observed in the PM2.5-treated hESCs. Meanwhile, up-regulation of apoptosis as well as down-regulation of Nrf2 signaling pathway were also observed after PM2.5 treatment. However, we did not detect significant expression change or phosphorylation of Akt and Erk in PM2.5-treated hESCs. Interestingly, scavenging of PM2.5-induced ROS by N-acetylcysteine (NAC) could block cell apoptosis and rescue the activity of Nrf2 signaling pathway. In conclusion, we demonstrate that PM2.5 is toxic to hESCs by inhibition of ROS-mediated Nrf2 pathway activity. Our findings suggest activation of Nrf2 pathway will help develop new strategies for the prevention and treatment of PM2.5-associated disease.
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Affiliation(s)
- Lifang Jin
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Jian Ni
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Yuan Tao
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Xinyi Weng
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Yuling Zhu
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Junyan Yan
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China.
| | - Baowei Hu
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China.
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7
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Andrographolide induce human embryonic stem cell apoptosis by oxidative stress response. Mol Cell Toxicol 2019. [DOI: 10.1007/s13273-019-0024-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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8
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Park J, Son Y, Lee NG, Lee K, Lee DG, Song J, Lee J, Kim S, Cho MJ, Jang JH, Lee J, Park JG, Kim YG, Kim JS, Lee J, Cho YS, Park YJ, Han BS, Bae KH, Han S, Kang B, Haam S, Lee SH, Lee SC, Min JK. DSG2 Is a Functional Cell Surface Marker for Identification and Isolation of Human Pluripotent Stem Cells. Stem Cell Reports 2018; 11:115-127. [PMID: 29910125 PMCID: PMC6117473 DOI: 10.1016/j.stemcr.2018.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 11/28/2022] Open
Abstract
Pluripotent stem cells (PSCs) represent the most promising clinical source for regenerative medicine. However, given the cellular heterogeneity within cultivation and safety concerns, the development of specific and efficient tools to isolate a pure population and eliminate all residual undifferentiated PSCs from differentiated derivatives is a prerequisite for clinical applications. In this study, we raised a monoclonal antibody and identified its target antigen as desmoglein-2 (DSG2). DSG2 co-localized with human PSC (hPSC)-specific cell surface markers, and its expression was rapidly downregulated upon differentiation. The depletion of DSG2 markedly decreased hPSC proliferation and pluripotency marker expression. In addition, DSG2-negative population in hPSCs exhibited a notable suppression in embryonic body and teratoma formation. The actions of DSG2 in regulating the self-renewal and pluripotency of hPSCs were predominantly exerted through the regulation of β-catenin/Slug-mediated epithelial-to-mesenchymal transition. Our results demonstrate that DSG2 is a valuable PSC surface marker that is essential for the maintenance of PSC self-renewal. DSG2 is a valuable cell surface marker for defining the state of pluripotency in PSCs DSG2 is essential for the maintenance of PSC self-renewal and pluripotency DSG2 regulates β-catenin-mediated EMT signaling in PSCs DSG2 is essential for the acquisition of pluripotency during reprogramming
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Affiliation(s)
- Jongjin Park
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Yeonsung Son
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Na Geum Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Kyungmin Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Dong Gwang Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jinhoi Song
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jaemin Lee
- Aging Research Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Seokho Kim
- Aging Research Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Min Ji Cho
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Ju-Hong Jang
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jangwook Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jong-Gil Park
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Yeon-Gu Kim
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jang-Seong Kim
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jungwoon Lee
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Yee Sook Cho
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Young-Jun Park
- Research Center for Metabolic Regulation, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Baek Soo Han
- Research Center for Metabolic Regulation, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Kwang-Hee Bae
- Research Center for Metabolic Regulation, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Seungmin Han
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Korea
| | - Byunghoon Kang
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Korea
| | - Sang-Hyun Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea.
| | - Sang Chul Lee
- Research Center for Metabolic Regulation, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea.
| | - Jeong-Ki Min
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea.
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Shekari F, Baharvand H, Salekdeh GH. Organellar proteomics of embryonic stem cells. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2018; 95:215-30. [PMID: 24985774 DOI: 10.1016/b978-0-12-800453-1.00007-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Embryonic stem cells (ESCs) are undifferentiated cells with two common remarkable features known as self-renewal and differentiation. Proteomics plays an increasingly important role in understanding molecular mechanisms underlying self-renewal and pluripotency of ESCs and their applications in cell therapy and developmental biology studies. As the function of a protein is strongly associated with its localization in cell, a complete and accurate picture of the proteome of ESCs cannot be achieved without knowing the subcellular locations of proteins. Subcellular fractionation allows enrichment of low abundant proteins and signaling complexes and reduces the complexity of the sample. It also provided insight into tracking proteins that shuttle between different compartments. Despite the substantial interest and efforts in ESC subcellular proteomics area, progress has been relatively limited. In this review, we present an overview on current status of ESCs organelle proteomics research and discuss challenges in subcellular proteomics.
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Affiliation(s)
- Faezeh Shekari
- Department of Molecular Systems Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Developmental Biology, University of Science and Culture, ACECR, Tehran, Iran
| | - Hossein Baharvand
- Department of Developmental Biology, University of Science and Culture, ACECR, Tehran, Iran; Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Ghasem Hosseini Salekdeh
- Department of Molecular Systems Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Systems Biology, Agricultural Biotechnology Research Institute of Iran, Karaj, Iran.
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Sample Preparation for Mass Spectrometry-Based Proteomics; from Proteomes to Peptides. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 919:43-62. [DOI: 10.1007/978-3-319-41448-5_3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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11
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Higashi K, Yagi M, Arakawa T, Asano K, Kobayashi K, Tachibana T, Saito K. A novel marker for undifferentiated human embryonic stem cells. Monoclon Antib Immunodiagn Immunother 2015; 34:7-11. [PMID: 25723277 DOI: 10.1089/mab.2014.0075] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human embryonic stem cells (hESCs) are pluripotent stem cells from early embryos, and their self-renewal capacity depends on the sustained expression of hESC-specific molecules and the suppressed expression of differentiation-associated genes. To discover novel molecules expressed on hESCs, we generated a panel of monoclonal antibodies against undifferentiated hESCs. The antigen recognized by MAb2 is expressed on the cell surface of undifferentiated hESCs; three diffused bands with molecular mass between 30 and 60 kDa in the lysates of hESCs were diminished during hESC differentiation into neural cells. The expression of MAb2 antigen was also observed on the plasma membrane of lung cancer cells, and MAb2 detected 55, 50, and 35 kDa protein bands in the cell lysates. Immunoprecipitation followed by proteomics analyses identified CD147/basigin as a MAb2 antigen. Finally, the positive expression of CD147/basigin protein in undifferentiated hESCs was confirmed. These results suggested that CD147/basigin could be another undifferentiated hESC marker.
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Affiliation(s)
- Kiyoshi Higashi
- 1 Environmental Health Science Laboratory, Sumitomo Chemical Co. , Osaka, Japan
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12
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Dobson L, Reményi I, Tusnády GE. The human transmembrane proteome. Biol Direct 2015; 10:31. [PMID: 26018427 PMCID: PMC4445273 DOI: 10.1186/s13062-015-0061-x] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/15/2015] [Indexed: 12/04/2022] Open
Abstract
Background Transmembrane proteins have important roles in cells, as they are involved in energy production, signal transduction, cell-cell interaction, cell-cell communication and more. In human cells, they are frequently targets for pharmaceuticals; therefore, knowledge about their properties and structure is crucial. Topology of transmembrane proteins provide a low resolution structural information, which can be a starting point for either laboratory experiments or modelling their 3D structures. Results Here, we present a database of the human α-helical transmembrane proteome, including the predicted and/or experimentally established topology of each transmembrane protein, together with the reliability of the prediction. In order to distinguish transmembrane proteins in the proteome as well as for topology prediction, we used a newly developed consensus method (CCTOP) that incorporates recent state of the art methods, with tested accuracies on a novel human benchmark protein set. CCTOP utilizes all available structure and topology data as well as bioinformatical evidences for topology prediction in a probabilistic framework provided by the hidden Markov model. This method shows the highest accuracy (98.5 % for discrinimating between transmembrane and non-transmembrane proteins and 84 % for per protein topology prediction) among the dozen tested topology prediction methods. Analysis of the human proteome with the CCTOP indicates that it contains 4998 (26 %) transmembrane proteins. Besides predicting topology, reliability of the predictions is estimated as well, and it is demonstrated that the per protein prediction accuracies of more than 60 % of the predictions are over 98 % on the benchmark sets and most probably on the predicted human transmembrane proteome too. Conclusions Here, we present the most accurate prediction of the human transmembrane proteome together with the experimental topology data. These data, as well as various statistics about the human transmembrane proteins and their topologies can be downloaded from and can be visualized at the website of the human transmembrane proteome (http://htp.enzim.hu). Reviewers This article was reviewed by Dr. Sandor Pongor, Dr. Michael Galperin and Dr. Pascale Gaudet (nominated by Dr Michael Galperin). Electronic supplementary material The online version of this article (doi:10.1186/s13062-015-0061-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- László Dobson
- "Momentum" Membrane Protein Bioinformatics Research Group, Institute of Enzymology, RCNS, HAS, Budapest, PO Box 7, H-1518, Hungary.
| | - István Reményi
- "Momentum" Membrane Protein Bioinformatics Research Group, Institute of Enzymology, RCNS, HAS, Budapest, PO Box 7, H-1518, Hungary.
| | - Gábor E Tusnády
- "Momentum" Membrane Protein Bioinformatics Research Group, Institute of Enzymology, RCNS, HAS, Budapest, PO Box 7, H-1518, Hungary.
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Song X, Wang S, Gu B, Hou Q, Liu Y, Zhang M. Production and characterization of a monoclonal antibody against GRAM domain-containing protein 1A. Monoclon Antib Immunodiagn Immunother 2015; 33:246-53. [PMID: 25171004 DOI: 10.1089/mab.2014.0001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
From the proteomic analysis, we identified hundreds of novel proteins that have never been characterized for their expression profile and function on human embryonic stem (hES) cells. In this study, we produced a group of monoclonal antibodies against the GRAM domain-containing protein 1A, which was found on hES cells. Using these antibodies, we analyzed the expression of GRAMD1A in various tissues and tumor cell lines. The results showed that GRAMD1A is expressed in the nucleus and cytoplasm of hES cells, cancer cell lines and ectoderm, mesoderm, and endoderm tissues. The development of the monoclonal antibody to GRAMD1A and the characterization of the expression pattern of this protein could have significant implications in the functional characterization of this novel protein.
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Affiliation(s)
- Xiuli Song
- 1 Institute of Genetics, College of Life Sciences, Zhejiang University , Hangzhou, China
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14
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Jabart E, Rangarajan S, Lieu C, Hack J, Conboy I, Sohn LL. A Microfluidic Method for the Selection of Undifferentiated Human Embryonic Stem Cells and in Situ Analysis. MICROFLUIDICS AND NANOFLUIDICS 2015; 18:955-966. [PMID: 33688311 PMCID: PMC7939131 DOI: 10.1007/s10404-014-1485-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Conventional cell-sorting methods such as fluorescence-activated cell sorting (FACS) or magnetic-activated cell sorting (MACS) can suffer from certain shortcomings such as lengthy sample preparation time, cell modification through antibody labeling, and cell damage due to exposure to high shear forces or to attachment of superparamagnetic Microbeads. In light of these drawbacks, we have recently developed a label-free, microfluidic platform that can not only select cells with minimal sample preparation but also enable analysis of cells in situ. We demonstrate the utility of our platform by successfully isolating undifferentiated human embryonic stem cells (hESCs) from a heterogeneous population based on the undifferentiated stem-cell marker SSEA-4. Importantly, we show that, in contrast to MACS or FACS, cells isolated by our method have very high viability (~90%). Overall, our platform technology could likely be applied to other cell types beyond hESCs and to a variety of heterogeneous cell populations in order to select and analyze cells of interest.
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Affiliation(s)
- E. Jabart
- Dept. of Bioengineering, University of California, Berkeley 94720, USA
| | - S. Rangarajan
- Dept. of Bioengineering, University of California, Berkeley 94720, USA
| | - C. Lieu
- School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - J. Hack
- Dept. of Mechanical Engineering, University of California, Berkeley 94720, USA
| | - I. Conboy
- Dept. of Bioengineering, University of California, Berkeley 94720, USA
| | - L. L. Sohn
- Dept. of Mechanical Engineering, University of California, Berkeley 94720, USA
- Author to whom correspondence should be addressed: , 510-642-5434
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15
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Gomes-Alves P, Serra M, Brito C, R.-Borlado L, López JA, Vázquez J, Carrondo MJT, Bernad A, Alves PM. Exploring analytical proteomics platforms toward the definition of human cardiac stem cells receptome. Proteomics 2015; 15:1332-7. [DOI: 10.1002/pmic.201400318] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/03/2014] [Accepted: 12/08/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Patrícia Gomes-Alves
- iBET; Instituto de Biologia Experimental e Tecnológica; Oeiras Portugal
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | - Margarida Serra
- iBET; Instituto de Biologia Experimental e Tecnológica; Oeiras Portugal
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | - Catarina Brito
- iBET; Instituto de Biologia Experimental e Tecnológica; Oeiras Portugal
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | | | - Juan A. López
- Laboratorio de Proteómica Cardiovascular and Unidad de Proteómica; Centro Nacional de Investigaciones Cardiovasculares; Madrid Spain
| | - Jesús Vázquez
- Laboratorio de Proteómica Cardiovascular and Unidad de Proteómica; Centro Nacional de Investigaciones Cardiovasculares; Madrid Spain
| | - Manuel J. T. Carrondo
- iBET; Instituto de Biologia Experimental e Tecnológica; Oeiras Portugal
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
- Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Monte da Caparica Portugal
| | | | - Paula M. Alves
- iBET; Instituto de Biologia Experimental e Tecnológica; Oeiras Portugal
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
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16
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Sun B. Proteomics and glycoproteomics of pluripotent stem-cell surface proteins. Proteomics 2014; 15:1152-63. [DOI: 10.1002/pmic.201400300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/07/2014] [Accepted: 09/08/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Bingyun Sun
- Department of Chemistry and Department of Molecular Biology and Biochemistry, Simon Fraser University; Burnaby British Columbia Canada
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17
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Baird A, Lee J, Podvin S, Kurabi A, Dang X, Coimbra R, Costantini T, Bansal V, Eliceiri BP. Esophageal cancer-related gene 4 at the interface of injury, inflammation, infection, and malignancy. ACTA ACUST UNITED AC 2014; 2014:131-142. [PMID: 25580077 PMCID: PMC4287990 DOI: 10.2147/gictt.s49085] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In humans, esophageal cancer-related gene 4 (ECRG4) is encoded by four exons in the c2orf40 locus of chromosome 2. Translation of ECRG4 messenger ribonucleic acid produces a 148 amino acid-secreted 17 KDa protein that is then processed to 14, ten, eight, six, four, and two KDa peptides, depending on the cell in which the gene is expressed. As hypermethylation at the c2orf40 locus inhibits ECRG4 gene expression in many epithelial cancers, several investigators have speculated that ECRG4 is a candidate tumor suppressor. Indeed, overexpression of ECRG4 inhibits cell proliferation in vitro, but it also has a wide range of effects in vivo beyond its antitumor activity. ECRG4 overexpression affects apoptosis, senescence, cell migration, inflammation, injury, and infection responsiveness. ECRG4 activities also depend on its cellular localization, secretion, and post-translational processing. These cytokine/chemokine-like characteristics argue that ECRG4 is not a traditional candidate tumor suppressor gene, as originally predicted by its downregulation in cancer. We review how insights into the regulation of ECRG4 gene expression, knowledge of its primary structure, and the study of its emerging physiological functions come together to support a much more complex role for ECRG4 at the interface of inflammation, infection, and malignancy.
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Affiliation(s)
- Andrew Baird
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Jisook Lee
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Sonia Podvin
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Arwa Kurabi
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Xitong Dang
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Raul Coimbra
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Todd Costantini
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Vishal Bansal
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
| | - Brian P Eliceiri
- Division of Trauma, Burn, and Acute Critical Care, Department of Surgery, University of California San Diego Health Sciences, San Diego, CA, USA
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Higashi K, Asano K, Yagi M, Yamada K, Arakawa T, Ehashi T, Mori T, Sumida K, Kushida M, Ando S, Kinoshita M, Kakehi K, Tachibana T, Saito K. Expression of the clustered NeuAcα2-3Galβ O-glycan determines the cell differentiation state of the cells. J Biol Chem 2014; 289:25833-43. [PMID: 25074924 DOI: 10.1074/jbc.m114.550848] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Human embryonic stem cells (hESCs) are pluripotent stem cells from early embryos, and their self-renewal capacity depends on the sustained expression of hESC-specific molecules and the suppressed expression of differentiation-associated genes. To discover novel molecules expressed on hESCs, we generated a panel of monoclonal antibodies against undifferentiated hESCs and evaluated their ability to mark cancer cells, as well as hESCs. MAb7 recognized undifferentiated hESCs and showed a diffuse band with molecular mass of >239 kDa in the lysates of hESCs. Although some amniotic epithelial cells expressed MAb7 antigen, its expression was barely detected in normal human keratinocytes, fibroblasts, or endothelial cells. The expression of MAb7 antigen was observed only in pancreatic and gastric cancer cells, and its levels were elevated in metastatic and poorly differentiated cancer cell lines. Analyses of MAb7 antigen suggested that the clustered NeuAcα2-3Galβ O-linked oligosaccharides on DMBT1 (deleted in malignant brain tumors 1) were critical for MAb7 binding in cancer cells. Although features of MAb7 epitope were similar with those of TRA-1-60, distribution of MAb7 antigen in cancer cells was different from that of TRA-1-60 antigen. Exposure of a histone deacetylase inhibitor to differentiated gastric cancer MKN74 cells evoked the expression of MAb7 antigen, whereas DMBT1 expression remained unchanged. Cell sorting followed by DNA microarray analyses identified the down-regulated genes responsible for the biosynthesis of MAb7 antigen in MKN74 cells. In addition, treatment of metastatic pancreatic cancer cells with MAb7 significantly abrogated the adhesion to endothelial cells. These results raised the possibility that MAb7 epitope is a novel marker for undifferentiated cells such as hESCs and cancer stem-like cells and plays a possible role in the undifferentiated cells.
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Affiliation(s)
- Kiyoshi Higashi
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan,
| | - Kouji Asano
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
| | - Masaki Yagi
- the Department of Bioengineering, Graduate School of Engineering, Osaka City University, Osaka 558-8585, Japan
| | - Keita Yamada
- the Laboratory of Toxicology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan, and
| | - Tatsuhiko Arakawa
- the Department of Bioengineering, Graduate School of Engineering, Osaka City University, Osaka 558-8585, Japan
| | - Tomo Ehashi
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
| | - Takashi Mori
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
| | - Kayo Sumida
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
| | - Masahiko Kushida
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
| | - Satoshi Ando
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
| | | | - Kazuaki Kakehi
- the School of Pharmacy, Kinki University, Higashi-Osaka 577-8502, Japan
| | - Taro Tachibana
- the Department of Bioengineering, Graduate School of Engineering, Osaka City University, Osaka 558-8585, Japan
| | - Koichi Saito
- From the Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka 554-8558, Japan
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19
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Archacka K, Denkis A, Brzóska E, Świerczek B, Tarczyluk M, Jańczyk-Ilach K, Ciemerych MA, Moraczewski J. Competence of in vitro cultured mouse embryonic stem cells for myogenic differentiation and fusion with myoblasts. Stem Cells Dev 2014; 23:2455-68. [PMID: 24940624 DOI: 10.1089/scd.2013.0582] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Pluripotent stem cells are a potential source of various cell types for use in regenerative medicine. Despite accumulating knowledge, there is currently no efficient and reproducible protocol that does not require genetic manipulation for generation of myogenic cells from pluripotent stem cells. Here, we examined whether mouse embryonic stem (ES) cells are able to undergo myogenic differentiation and fusion in response to signals released by differentiating myoblasts. Using ES cells expressing the histone 2B-green fluorescent fusion protein, we were able to detect hybrid myotubes formed by ES cells and differentiating myoblasts. ES cells that fused with myoblasts downregulated the expression of pluripotency markers and induced the expression of myogenic markers, while unfused ES cells did not exhibit this expression pattern. Thus, the signals released by myoblasts were not sufficient to induce myogenic differentiation of ES cells. Although ES cells synthesize many proteins involved in myoblast adhesion and fusion, we did not observe any myotubes formed exclusively by ES cells. We found that ES cells lacked M-cadherin and vascular cell adhesion molecule-1, which may account for the low frequency of hybrid myotube formation in ES cell-myoblast co-cultures and the inability of ES cells alone to form myotubes.
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Affiliation(s)
- Karolina Archacka
- Department of Cytology, Faculty of Biology, University of Warsaw , Warsaw, Poland
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20
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Cell surface proteomics analysis indicates a neural lineage bias of rat bone marrow mesenchymal stromal cells. BIOMED RESEARCH INTERNATIONAL 2014; 2014:479269. [PMID: 24551847 PMCID: PMC3914342 DOI: 10.1155/2014/479269] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 12/08/2013] [Accepted: 12/20/2013] [Indexed: 11/17/2022]
Abstract
Mesenchymal stromal cells (MSCs) are one of the most intensively studied stem cell types with application aims. However, the molecular characterisation and the relationship between the molecular characterisation and functional properties of MSCs are largely unknown. In this study, we purified the surface proteins from rat bone marrow MSCs (rBMMSCs) and characterised their surface proteome by LC-MS/MS. Moreover, we comparatively analysed the data from this study with the surface proteomics data of mouse and human embryonic stem (ES) cells and human mesenchymal stromal cells (hMSCs). The data showed that, in contrast to ES cells and human mesenchymal stromal cells, rBMMSCs possessed a surface proteomics pattern biased to neural and neural-endocrine lineages, indicating a neural/neural crest bias, and suggested a neural differentiation tendency of these cells. The different surface proteomics pattern between rBMMSCs and hMSCs also suggested that MSCs of different origin might possess a different lineage bias.
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21
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Kassmer SH, Krause DS. Very small embryonic-like cells: biology and function of these potential endogenous pluripotent stem cells in adult tissues. Mol Reprod Dev 2013; 80:677-90. [PMID: 23440892 DOI: 10.1002/mrd.22168] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 02/17/2013] [Indexed: 01/15/2023]
Abstract
Very small embryonic-like cells (VSELs), found in murine bone marrow and other adult tissues, are small, non-hematopoietic cells expressing markers of pluripotent embryonic and primordial germ cells. A similar cell type in humans has begun to be characterized, though with a slightly different phenotype and surface markers. Consistent with expression of pluripotency genes, murine VSELs differentiate into cell types from three germ-layer lineages in vitro, though pluripotency has yet to be shown at the single-cell level or in vivo. VSELs appear to be quiescent under steady state conditions, apparently due to partially erased imprinting and overexpression of cell cycle inhibitory genes. In vivo, VSELs can enter the cell cycle under stress conditions, but which factors regulate quiescence versus proliferation and self-renewal versus differentiation are as yet unknown, and in vitro conditions that induce proliferation and self-renewal have yet to be defined. Future experiments are needed to address whether a VSEL niche actively regulates quiescence in vivo or quiescence is cell autonomous under steady state conditions. Insights into these mechanisms may help to address whether or not VSELs could play a role in regenerative medicine in the future.
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Affiliation(s)
- Susannah H Kassmer
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut
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22
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Ramirez JM, Bai Q, Péquignot M, Becker F, Kassambara A, Bouin A, Kalatzis V, Dijon-Grinand M, De Vos J. Side scatter intensity is highly heterogeneous in undifferentiated pluripotent stem cells and predicts clonogenic self-renewal. Stem Cells Dev 2013; 22:1851-60. [PMID: 23360234 DOI: 10.1089/scd.2012.0658] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
In culture, human pluripotent stem cells (PSCs) are phenotypically (for instance, the SSEA3 expression level) and functionally (capacity to survive after single-cell dissociation) heterogeneous. We report here that the side scatter (SSC) signal measured by flow cytometry, a variable correlated with membrane irregularity and cell granularity, is very high in PSCs, even higher than in blood polymorphonuclear cells, and markedly heterogeneous. Moreover, SSC intensity rapidly and strongly decreases upon PSC differentiation into any of the three germ layers. PSCs with high SSC (HSSC cells) or low SSC (LSSC cells) values both express pluripotency markers, but HSSC cells are characterized by more frequent simultaneous expression of the membrane pluripotency factors SSEA3, SSEA4, TRA-1-81, TRA-1-60, and CD24 and by a higher mitochondrial content. Functionally, HSSC cells are more likely to generate colonies upon single-cell passage than LSSC cells. SSC monitoring might provide a simple, but robust and rapid method to estimate pluripotency variations in culture and unveils a new phenotypic and functional heterogeneity in PSCs.
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Affiliation(s)
- Jean-Marie Ramirez
- CHU Montpellier, Institute for Research in Biotherapy, Hôpital Saint-Eloi, Montpellier, France
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23
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Kim JK, Marioni JC. Inferring the kinetics of stochastic gene expression from single-cell RNA-sequencing data. Genome Biol 2013; 14:R7. [PMID: 23360624 PMCID: PMC3663116 DOI: 10.1186/gb-2013-14-1-r7] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 01/28/2013] [Indexed: 12/15/2022] Open
Abstract
Background Genetically identical populations of cells grown in the same environmental condition show substantial variability in gene expression profiles. Although single-cell RNA-seq provides an opportunity to explore this phenomenon, statistical methods need to be developed to interpret the variability of gene expression counts. Results We develop a statistical framework for studying the kinetics of stochastic gene expression from single-cell RNA-seq data. By applying our model to a single-cell RNA-seq dataset generated by profiling mouse embryonic stem cells, we find that the inferred kinetic parameters are consistent with RNA polymerase II binding and chromatin modifications. Our results suggest that histone modifications affect transcriptional bursting by modulating both burst size and frequency. Furthermore, we show that our model can be used to identify genes with slow promoter kinetics, which are important for probabilistic differentiation of embryonic stem cells. Conclusions We conclude that the proposed statistical model provides a flexible and efficient way to investigate the kinetics of transcription.
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Bin G, Jiarong Z, Shihao W, Xiuli S, Cheng X, Liangbiao C, Ming Z. Aire promotes the self-renewal of embryonic stem cells through Lin28. Stem Cells Dev 2012; 21:2878-90. [PMID: 22540148 PMCID: PMC3464070 DOI: 10.1089/scd.2012.0097] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 04/27/2012] [Indexed: 11/12/2022] Open
Abstract
Abstract Autoimmune regulator (Aire) is one of the most well-characterized molecules in autoimmunity, but its function outside the immune system is largely unknown. The recent discovery of Aire expression in stem cells and early embryonic cells and its function in the self-renewal of embryonic stem (ES) cells highlight the importance of Aire in these cells. In this study, we present evidence that Aire promotes the expression of the pluripotent factor Lin28 and the self-renewal of ES cells. We presented the first evidence that the let-7 microRNA family contributed to the self-renewal promoting effect of Aire on ES cells. Moreover, we showed that Aire and Lin28 are co-expressed in the genital ridge, oocytes, and cleavage-stage embryos, and the expression level of Lin28 is correlated with the expression level of Aire. Although it is widely considered to be a promiscuous gene expression activator, these results indicated that Aire promotes the self-renewal of ES cells through a specific pathway (i.e., the activation of Lin28 and the inhibition of the let-7 microRNA family). The correlation between Aire and Lin28 expression in germ cells and early embryos indicated an in vivo function for Aire in toti- and pluripotent stem cells. This study presents the first molecular pathway that incorporates Aire into the pluripotency network. Moreover, it presents the first evidence that microRNAs contribute to the regulatory function of Aire and highlights a novel function of Aire in stem cell biology and reproduction. These functions reveal novel perspectives for studying the molecular mechanisms behind the establishment and sustenance of pluripotent identity.
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Affiliation(s)
- Gu Bin
- The Institute of Genetics, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Zhang Jiarong
- The Institute of Genetics, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Wang Shihao
- The Institute of Genetics, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Song Xiuli
- The Institute of Genetics, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Xu Cheng
- The Institute of Genetics, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Chen Liangbiao
- The Institute of Genetics and Developmental Biology, Chinese Academic of Sciences, Beijing, China
| | - Zhang Ming
- The Institute of Genetics, College of Life Sciences, Zhejiang University, Hangzhou, China
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Two-factor reprogramming of somatic cells to pluripotent stem cells reveals partial functional redundancy of Sox2 and Klf4. Cell Death Differ 2012; 19:1268-76. [PMID: 22539002 DOI: 10.1038/cdd.2012.45] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Ectopic expression of defined sets of transcription factors in somatic cells enables them to adopt the qualities of pluripotency. Mouse embryonic fibroblasts (MEFs) are the classic target cell used to elucidate the core principles of nuclear reprogramming. However, their phenotypic and functional heterogeneity represents a major hurdle for mechanistic studies aimed at defining the molecular nature of cellular plasticity. We show that reducing the complexity of MEFs by flow cytometry allows the isolation of discrete cell subpopulations that can be efficiently reprogrammed to pluripotency with fewer genes. Using these FACS-sorted cells, we performed a systematic side-by-side analysis of the reprogramming efficiency with different two- and three-factor combinations of Oct4, Sox2 and Klf4. We show that introduction of exogenous Oct4 with either Sox2 or Klf4 does not directly convert MEFs to a pluripotent state. Instead, each combination of factors disrupts the normal cellular homeostasis and establishes transient states characterized by the concurrent expression of mixed lineage markers. These cells convert into induced pluripotent stem cells in a stochastic fashion. Our data suggest that there is a partial functional redundancy between Sox2 and Klf4 in the disruption of cellular homeostasis and activation of regulatory networks that define pluripotency.
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26
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Pan PW, Zhang Q, Hou J, Liu Z, Bai F, Cao MR, Sun T, Bai G. Cell surface glycoprotein profiling of cancer cells based on bioorthogonal chemistry. Anal Bioanal Chem 2012; 403:1661-70. [DOI: 10.1007/s00216-012-5989-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 03/09/2012] [Accepted: 03/27/2012] [Indexed: 01/06/2023]
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Gundry RL, Riordon DR, Tarasova Y, Chuppa S, Bhattacharya S, Juhasz O, Wiedemeier O, Milanovich S, Noto FK, Tchernyshyov I, Raginski K, Bausch-Fluck D, Tae HJ, Marshall S, Duncan SA, Wollscheid B, Wersto RP, Rao S, Van Eyk JE, Boheler KR. A cell surfaceome map for immunophenotyping and sorting pluripotent stem cells. Mol Cell Proteomics 2012; 11:303-16. [PMID: 22493178 DOI: 10.1074/mcp.m112.018135] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Induction of a pluripotent state in somatic cells through nuclear reprogramming has ushered in a new era of regenerative medicine. Heterogeneity and varied differentiation potentials among induced pluripotent stem cell (iPSC) lines are, however, complicating factors that limit their usefulness for disease modeling, drug discovery, and patient therapies. Thus, there is an urgent need to develop nonmutagenic rapid throughput methods capable of distinguishing among putative iPSC lines of variable quality. To address this issue, we have applied a highly specific chemoproteomic targeting strategy for de novo discovery of cell surface N-glycoproteins to increase the knowledge-base of surface exposed proteins and accessible epitopes of pluripotent stem cells. We report the identification of 500 cell surface proteins on four embryonic stem cell and iPSCs lines and demonstrate the biological significance of this resource on mouse fibroblasts containing an oct4-GFP expression cassette that is active in reprogrammed cells. These results together with immunophenotyping, cell sorting, and functional analyses demonstrate that these newly identified surface marker panels are useful for isolating iPSCs from heterogeneous reprogrammed cultures and for isolating functionally distinct stem cell subpopulations.
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Affiliation(s)
- Rebekah L Gundry
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
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28
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Gundry RL, Burridge PW, Boheler KR. Pluripotent stem cell heterogeneity and the evolving role of proteomic technologies in stem cell biology. Proteomics 2011; 11:3947-61. [PMID: 21834136 DOI: 10.1002/pmic.201100100] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Revised: 04/29/2011] [Accepted: 06/08/2011] [Indexed: 12/13/2022]
Abstract
Stem cells represent obvious choices for regenerative medicine and are invaluable for studies of human development and drug testing. The proteomic landscape of pluripotent stem cells (PSCs), in particular, is not yet clearly defined; consequently, this field of research would greatly benefit from concerted efforts designed to better characterize these cells. In this concise review, we provide an overview of stem cell potency, highlight the types and practical implications of heterogeneity in PSCs and provide a detailed analysis of the current view of the pluripotent proteome in a unique resource for this rapidly evolving field. Our goal in this review is to provide specific insights into the current status of the known proteome of both mouse and human PSCs. This has been accomplished by integrating published data into a unified PSC proteome to facilitate the identification of proteins, which may be informative for the stem cell state as well as to reveal areas where our current view is limited. These analyses provide insight into the challenges faced in the proteomic analysis of PSCs and reveal one area--the cell surface subproteome--that would especially benefit from enhanced research efforts.
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Affiliation(s)
- Rebekah L Gundry
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
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Niehage C, Steenblock C, Pursche T, Bornhäuser M, Corbeil D, Hoflack B. The cell surface proteome of human mesenchymal stromal cells. PLoS One 2011; 6:e20399. [PMID: 21637820 PMCID: PMC3102717 DOI: 10.1371/journal.pone.0020399] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Accepted: 04/23/2011] [Indexed: 12/12/2022] Open
Abstract
Background Multipotent human mesenchymal stromal cells (hMSCs) are considered as promising biological tools for regenerative medicine. Their antibody-based isolation relies on the identification of reliable cell surface markers. Methodology/Principal Findings To obtain a comprehensive view of the cell surface proteome of bone marrow-derived hMSCs, we have developed an analytical pipeline relying on cell surface biotinylation of intact cells using cell impermeable, cleavable sulfo-NHS-SS-biotin to enrich the plasma membrane proteins and mass spectrometry for identification with extremely high confidence. Among the 888 proteins identified, we found ≈200 bona fide plasma membrane proteins including 33 cell adhesion molecules and 26 signaling receptors. In total 41 CD markers including 5 novel ones (CD97, CD112, CD239, CD276, and CD316) were identified. The CD markers are distributed homogenously within plastic-adherent hMSC populations and their expression is modulated during the process of adipogenesis or osteogenesis. Moreover, our in silico analysis revealed a significant difference between the cell surface proteome of hMSCs and that of human embryonic stem cells reported previously. Conclusions/Significance Collectively, our analytical methods not only provide a basis for further studies of mechanisms maintaining the multipotency of hMSCs within their niches and triggering their differentiation after signaling, but also a toolbox for a refined antibody-based identification of hMSC populations from different tissues and their isolation for therapeutic intervention.
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Affiliation(s)
- Christian Niehage
- Biotechnology Center, Dresden University of Technology, Dresden, Germany
| | | | - Theresia Pursche
- Biotechnology Center, Dresden University of Technology, Dresden, Germany
| | - Martin Bornhäuser
- Department of Hematology and Oncology, University Hospital Dresden, Dresden, Germany
| | - Denis Corbeil
- Biotechnology Center, Dresden University of Technology, Dresden, Germany
| | - Bernard Hoflack
- Biotechnology Center, Dresden University of Technology, Dresden, Germany
- * E-mail:
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30
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Gu B, Zhang J, Wu Y, Zhang X, Tan Z, Lin Y, Huang X, Chen L, Yao K, Zhang M. Proteomic analyses reveal common promiscuous patterns of cell surface proteins on human embryonic stem cells and sperms. PLoS One 2011; 6:e19386. [PMID: 21559292 PMCID: PMC3086920 DOI: 10.1371/journal.pone.0019386] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Accepted: 03/28/2011] [Indexed: 12/30/2022] Open
Abstract
Background It has long been proposed that early embryos and reproductive organs exhibit
similar gene expression profiles. However, whether this similarity is
propagated to the protein level remains largely unknown. We have previously
characterised the promiscuous expression pattern of cell surface proteins on
mouse embryonic stem (mES) cells. As cell surface proteins also play
critical functions in human embryonic stem (hES) cells and germ cells, it is
important to reveal whether a promiscuous pattern of cell surface proteins
also exists for these cells. Methods and Principal Findings Surface proteins of hES cells and human mature sperms (hSperms) were purified
by biotin labelling and subjected to proteomic analyses. More than 1000
transmembrane or secreted cell surface proteins were identified on the two
cell types, respectively. Proteins from both cell types covered a large
variety of functional categories including signal transduction, adhesion and
transporting. Moreover, both cell types promiscuously expressed a wide
variety of tissue specific surface proteins, and some surface proteins were
heterogeneously expressed. Conclusions/Significance Our findings indicate that the promiscuous expression of functional and
tissue specific cell surface proteins may be a common pattern in embryonic
stem cells and germ cells. The conservation of gene expression patterns
between early embryonic cells and reproductive cells is propagated to the
protein level. These results have deep implications for the cell surface
signature characterisation of pluripotent stem cells and germ cells and may
lead the way to a new area of study, i.e., the functional significance of
promiscuous gene expression in pluripotent and germ cells.
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Affiliation(s)
- Bin Gu
- The Institute of Genetics, College of Life
Sciences, Zhejiang University, Hangzhou, China
| | - Jiarong Zhang
- The Institute of Genetics, College of Life
Sciences, Zhejiang University, Hangzhou, China
| | - Ying Wu
- Zhejiang Institute of Planned Parenthood
Research and Zhejiang Human Sperm Bank, Hangzhou, China
| | - Xinzong Zhang
- Zhejiang Institute of Planned Parenthood
Research and Zhejiang Human Sperm Bank, Hangzhou, China
| | - Zhou Tan
- The Institute of Genetics, College of Life
Sciences, Zhejiang University, Hangzhou, China
| | - Yuanji Lin
- The Institute of Genetics, College of Life
Sciences, Zhejiang University, Hangzhou, China
| | - Xiao Huang
- The Institute of Cell and Developmental
Biology, College of Life Sciences, Zhejiang University, Hangzhou,
China
| | - Liangbiao Chen
- The Institute of Genetics and Developmental
Biology, Chinese Academy of Sciences, Beijing, China
| | - Kangshou Yao
- Zhejiang Institute of Planned Parenthood
Research and Zhejiang Human Sperm Bank, Hangzhou, China
- * E-mail: (MZ); (KY)
| | - Ming Zhang
- The Institute of Genetics, College of Life
Sciences, Zhejiang University, Hangzhou, China
- * E-mail: (MZ); (KY)
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31
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Ning Z, Zhou H, Wang F, Abu-Farha M, Figeys D. Analytical Aspects of Proteomics: 2009–2010. Anal Chem 2011; 83:4407-26. [DOI: 10.1021/ac200857t] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Hu Zhou
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China 201203
| | - Fangjun Wang
- Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China 116023
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