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Pez F, Gifu P, Degli-Esposti D, Fares N, Lopez A, Lefrançois L, Michelet M, Rivoire M, Bancel B, Sylla BS, Herceg Z, Merle P, Caron de Fromentel C. In vitro transformation of primary human hepatocytes: Epigenetic changes and stemness properties. Exp Cell Res 2019; 384:111643. [PMID: 31557464 DOI: 10.1016/j.yexcr.2019.111643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 09/19/2019] [Accepted: 09/21/2019] [Indexed: 02/07/2023]
Abstract
Human hepatocarcinogenesis is a complex process with many unresolved issues, including the cell of origin (differentiated and/or progenitor/stem cells) and the initial steps leading to tumor development. With the aim of providing new tools for studying hepatocellular carcinoma initiation and progression, we developed an innovative model based on primary human hepatocytes (PHHs) lentivirus-transduced with SV40LT+ST, HRASV12 with or without hTERT. The differentiation status of these transduced-PHHs was characterized by RNA sequencing (including lncRNAs), and the expression of some differentiation markers confirmed by RT-qPCR and immunofluorescence. In addition, their transformation capacity was assessed by colony formation in soft agar and tumorigenicity evaluated in immune-deficient mice. The co-expression of SV40LT+ST and HRASV12 in PHHs, in association or not with hTERT, led to the emergence of transformed clones. These clones exhibited a poorly differentiated cell phenotype with expression of stemness and mesenchymal-epithelial transition markers and gave rise to cancer stem cell subpopulations. In vivo, they resulted in poorly differentiated hepatocellular carcinomas with a reactivation of endogenous hTERT. These experiments demonstrate for the first time that non-cycling human mature hepatocytes can be permissive to in vitro transformation. This cellular tool provides the first comprehensive in vitro model for identifying genetic/epigenetic changes driving human hepatocarcinogenesis.
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Affiliation(s)
- Floriane Pez
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France
| | - Patricia Gifu
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France
| | - Davide Degli-Esposti
- Epigenetics Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - Nadim Fares
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France
| | - Anaïs Lopez
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France
| | - Lydie Lefrançois
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France
| | - Maud Michelet
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France
| | - Michel Rivoire
- Département de Chirurgie et Institut de Chirurgie Expérimentale, Centre Léon Bérard, Lyon, France
| | - Brigitte Bancel
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France; Hospices Civils de Lyon, Service d'Anatomopathologie, Groupement Hospitalier Lyon Nord, France
| | - Bakary S Sylla
- Infections and Cancer Biology Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - Zdenko Herceg
- Epigenetics Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - Philippe Merle
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France; Hospices Civils de Lyon, Service d'Hépatologie et Gastroentérologie, Groupement Hospitalier Lyon Nord, France
| | - Claude Caron de Fromentel
- INSERM U1052, CNRS 5286, Univ Lyon, Université Claude Bernard Lyon 1, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, F-69000, Lyon, France.
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Wang Y, Chen S, Yan Z, Pei M. A prospect of cell immortalization combined with matrix microenvironmental optimization strategy for tissue engineering and regeneration. Cell Biosci 2019; 9:7. [PMID: 30627420 PMCID: PMC6321683 DOI: 10.1186/s13578-018-0264-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/21/2018] [Indexed: 12/20/2022] Open
Abstract
Cellular senescence is a major hurdle for primary cell-based tissue engineering and regenerative medicine. Telomere erosion, oxidative stress, the expression of oncogenes and the loss of tumor suppressor genes all may account for the cellular senescence process with the involvement of various signaling pathways. To establish immortalized cell lines for research and clinical use, strategies have been applied including internal genomic or external matrix microenvironment modification. Considering the potential risks of malignant transformation and tumorigenesis of genetic manipulation, environmental modification methods, especially the decellularized cell-deposited extracellular matrix (dECM)-based preconditioning strategy, appear to be promising for tissue engineering-aimed cell immortalization. Due to few review articles focusing on this topic, this review provides a summary of cell senescence and immortalization and discusses advantages and limitations of tissue engineering and regeneration with the use of immortalized cells as well as a potential rejuvenation strategy through combination with the dECM approach.
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Affiliation(s)
- Yiming Wang
- 1Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196 USA.,2Department of Orthopaedics, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032 China
| | - Song Chen
- 3Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, 610083 Sichuan China
| | - Zuoqin Yan
- 2Department of Orthopaedics, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032 China
| | - Ming Pei
- 1Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196 USA.,4WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV 26506 USA
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Taboski MAS, Sealey DCF, Dorrens J, Tayade C, Betts DH, Harrington L. Long telomeres bypass the requirement for telomere maintenance in human tumorigenesis. Cell Rep 2012; 1:91-8. [PMID: 22832159 PMCID: PMC3406325 DOI: 10.1016/j.celrep.2011.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 12/06/2011] [Accepted: 12/15/2011] [Indexed: 01/03/2023] Open
Abstract
Despite the importance of telomere maintenance in cancer cell survival via the elongation of telomeres by telomerase reverse transcriptase (TERT) or alternative lengthening of telomeres (ALT), it had not been tested directly whether telomere maintenance is dispensable for human tumorigenesis. We engineered human tumor cells containing loxP-flanked hTERT to enable extensive telomere elongation prior to complete hTERT excision. Despite unabated telomere erosion, hTERT-excised cells formed tumors in mice and proliferated in vitro for up to 1 year. Telomerase reactivation or ALT was not observed, and the eventual loss of telomeric signal coincided with loss of tumorigenic potential and cell viability. Crisis was averted via the reintroduction of active but not inactive hTERT. Thus, telomere maintenance is dispensable for human tumorigenesis when telomere reserves are long. Yet, despite telomere instability and the presence of oncogenic RAS, human tumors remain susceptible to crisis induced by critically short telomeres.
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Affiliation(s)
- Michael A. S. Taboski
- Campbell Family Institute for Cancer Research and
Department of Medical Biophysics, Ontario Cancer Institute, University of Toronto,
Toronto, M5G 2C1, Canada
| | - David C. F. Sealey
- Campbell Family Institute for Cancer Research and
Department of Medical Biophysics, Ontario Cancer Institute, University of Toronto,
Toronto, M5G 2C1, Canada
| | - Jennifer Dorrens
- Wellcome Trust Centre for Cell Biology, School of
Biological Sciences, University of Edinburgh, Edinburgh, EH9 3JR, United
Kingdom
| | - Chandrakant Tayade
- Biomedical Sciences, Ontario Veterinary College, University
of Guelph, Guelph, N1G 2W1, Canada
| | - Dean H. Betts
- Biomedical Sciences, Ontario Veterinary College, University
of Guelph, Guelph, N1G 2W1, Canada
| | - Lea Harrington
- Campbell Family Institute for Cancer Research and
Department of Medical Biophysics, Ontario Cancer Institute, University of Toronto,
Toronto, M5G 2C1, Canada
- Wellcome Trust Centre for Cell Biology, School of
Biological Sciences, University of Edinburgh, Edinburgh, EH9 3JR, United
Kingdom
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Cellular aging and cancer. Crit Rev Oncol Hematol 2010; 79:189-95. [PMID: 20705476 DOI: 10.1016/j.critrevonc.2010.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2009] [Revised: 06/19/2010] [Accepted: 07/13/2010] [Indexed: 11/21/2022] Open
Abstract
Aging is manifest in a variety of changes over time, including changes at the cellular level. Cellular aging acts primarily as a tumor suppressor mechanism, but also may enhance cancer development under certain circumstances. One important process of cellular aging is oncogene-induced senescence, which acts as a significant anti-cancer mechanism. Cellular senescence resulting from damage caused by activated oncogenes prevents the growth of potentially neoplastic cells. Moreover, cells that have entered senescence appear to be targets for elimination by the innate immune system. In another aspect of cellular aging, the absence of telomerase activity in normal tissues results in such cells lacking a telomere maintenance mechanism. One consequence is that in aging there is an increase in cells with shortened telomeres. In the presence of active oncogenes that cause expansion of a neoplastic clone, shortening of telomeres, leading to telomere dysfunction, prevents the indefinite expansion of the clone, because the cells enter crisis. Crisis results from chromosome fusions and other defects caused by dysfunctional telomeres and is a terminal state of the neoplastic clone. In this way the absence of telomerase in human cells, while one cause of cellular aging, also acts as an anti-cancer mechanism.
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