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Seblani M, Brezun JM, Féron F, Hoquet T. Rethinking plasticity: Analysing the concept of "destructive plasticity" in the light of neuroscience definitions. Eur J Neurosci 2024; 60:4798-4812. [PMID: 39092545 DOI: 10.1111/ejn.16487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 06/19/2024] [Accepted: 07/17/2024] [Indexed: 08/04/2024]
Abstract
As a multilevel and multidisciplinary field, neuroscience is designed to interact with various branches of natural and applied sciences as well as with humanities and philosophy. The continental tradition in philosophy, particularly over the past 20 years, tended to establish strong connections with biology and neuroscience findings. This cross fertilization can however be impeded by conceptual intricacies, such as those surrounding the concept of plasticity. The use of this concept has broadened as scientists applied it to explore an ever-growing range of biological phenomena. Here, we examine the consequences of this ambiguity in an interdisciplinary context through the analysis of the concept of "destructive plasticity" in the philosophical writings of Catherine Malabou. The term "destructive plasticity" was coined by Malabou in 2009 to refer to all processes leading to psycho-cognitive and emotional alterations following traumatic or nontraumatic brain injuries or resulting from neurodevelopmental disorders. By comparing it with the neuroscientific definitions of plasticity, we discuss the epistemological obstacles and possibilities related to the integration of this concept into neuroscience. Improving interdisciplinary exchanges requires an advanced and sophisticated manipulation of neurobiological concepts. These concepts are not only intended to guide research programmes within neuroscience but also to organize and frame the dialogue between different theoretical backgrounds.
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Affiliation(s)
- Mostafa Seblani
- Institut des Sciences du Mouvement: Etienne-Jules MAREY (ISM), CNRS, Aix Marseille Univ, UMR 7287, Campus Scientifique de Luminy, Marseille Cedex 09, France
- Institute of NeuroPhysiopathology (INP), CNRS, Aix Marseille University, UMR 7051, Marseille Cedex 5, France
- Department of Philosophy, University Paris Nanterre, Nanterre Cedex, France
| | - Jean-Michel Brezun
- Institut des Sciences du Mouvement: Etienne-Jules MAREY (ISM), CNRS, Aix Marseille Univ, UMR 7287, Campus Scientifique de Luminy, Marseille Cedex 09, France
| | - François Féron
- Institute of NeuroPhysiopathology (INP), CNRS, Aix Marseille University, UMR 7051, Marseille Cedex 5, France
| | - Thierry Hoquet
- Department of Philosophy, University Paris Nanterre, Nanterre Cedex, France
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Quesenberry PJ, Wen S, Goldberg LR, Dooner MS. The universal stem cell. Leukemia 2022; 36:2784-2792. [PMID: 36307485 PMCID: PMC9712109 DOI: 10.1038/s41375-022-01715-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/26/2022] [Accepted: 09/22/2022] [Indexed: 11/08/2022]
Abstract
Current dogma is that there exists a hematopoietic pluripotent stem cell, resident in the marrow, which is quiescent, but with tremendous proliferative and differentiative potential. Furthermore, the hematopoietic system is essentially hierarchical with progressive differentiation from the pluripotent stem cells to different classes of hematopoietic cells. However, results summarized here indicate that the marrow pluripotent hematopoietic stem cell is actively cycling and thus continually changing phenotype. As it progresses through cell cycle differentiation potential changes as illustrated by sequential changes in surface expression of B220 and GR-1 epitopes. Further data indicated that the potential of purified hematopoietic stem cells extends to multiple other non-hematopoietic cells. It appears that marrow stem cells will give rise to epithelial pulmonary cells at certain points in cell cycle. Thus, it appears that the marrow "hematopoietic" stem cell is also a stem cell for other non-hematopoietic tissues. These observations give rise to the concept of a universal stem cell. The marrow stem cell is not limited to hematopoiesis and its differentiation potential continually changes as it transits cell cycle. Thus, there is a universal stem cell in the marrow which alters its differentiation potential as it progresses through cell cycle. This potential is expressed when it resides in tissues compatible with its differentiation potential, at a particular point in cell cycle transit, or when it interacts with vesicles from that tissue.
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Affiliation(s)
- Peter J Quesenberry
- Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA.
| | - Sicheng Wen
- Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA
| | - Laura R Goldberg
- Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA
- Division of Hematology, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Mark S Dooner
- Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA
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3
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Ilic Z, Mondal TK, Guest I, Crawford DR, Sell S. Participation of liver stem cells in cholangiocarcinogenesis after aflatoxin B1 exposure of glutathione S-transferase A3 knockout mice. Tumour Biol 2018; 40:1010428318777344. [DOI: 10.1177/1010428318777344] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Aflatoxin B1, arguably the most potent human carcinogen, induces liver cancer in humans, rats, trout, ducks, and so on, but adult mice are totally resistant. This resistance is because of a detoxifying enzyme, mouse glutathione S-transferase A3, which binds to and inactivates aflatoxin B1 epoxide, preventing the epoxide from binding to DNA and causing mutations. Glutathione S-transferase A3 or its analog has not been detected in any of the sensitive species, including humans. The generation of a glutathione S-transferase A3 knockout (represented as KO or -/-) mice has allowed us to study the induction of liver cancer in mice by aflatoxin B1. In contrast to the induction of hepatocellular carcinomas in other species, aflatoxin B1 induces cholangiocarcinomas in GSTA3-/- mice. In other species and in knockout mice, the induction of liver cancer is preceded by extensive proliferation of small oval cells, providing additional evidence that oval cells are bipolar stem cells and may give rise to either hepatocellular carcinoma or cholangiocarcinoma depending on the nature of the hepatocarcinogen and the species of animal. The recent development of mouse oval cell lines in our laboratory from aflatoxin B1-treated GSTA3-/- mice should provide a new venue for study of the properties and potential of putative mouse liver stem cells.
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Affiliation(s)
- Zoran Ilic
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Tapan K Mondal
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Ian Guest
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | | | - Stewart Sell
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
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4
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Changing cells: An analysis of the concept of plasticity in the context of cellular differentiation. BIOSOCIETIES 2016. [DOI: 10.1057/s41292-016-0027-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Bonaventura G, Chamayou S, Liprino A, Guglielmino A, Fichera M, Caruso M, Barcellona ML. Different Tissue-Derived Stem Cells: A Comparison of Neural Differentiation Capability. PLoS One 2015; 10:e0140790. [PMID: 26517263 PMCID: PMC4627815 DOI: 10.1371/journal.pone.0140790] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 09/30/2015] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Stem cells are capable of self-renewal and differentiation into a wide range of cell types with multiple clinical and therapeutic applications. Stem cells are providing hope for many diseases that currently lack effective therapeutic methods, including strokes, Huntington's disease, Alzheimer's and Parkinson's disease. However, the paucity of suitable cell types for cell replacement therapy in patients suffering from neurological disorders has hampered the development of this promising therapeutic approach. AIM The innovative aspect of this study has been to evaluate the neural differentiation capability of different tissue-derived stem cells coming from different tissue sources such as bone marrow, umbilical cord blood, human endometrium and amniotic fluid, cultured under the same supplemented media neuro-transcription factor conditions, testing the expression of neural markers such as GFAP, Nestin and Neurofilaments using the immunofluorescence staining assay and some typical clusters of differentiation such as CD34, CD90, CD105 and CD133 by using the cytofluorimetric test assay. RESULTS Amniotic fluid derived stem cells showed a more primitive phenotype compared to the differentiating potential demonstrated by the other stem cell sources, representing a realistic possibility in the field of regenerative cell therapy suitable for neurodegenerative diseases.
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Affiliation(s)
- Gabriele Bonaventura
- Department of Pharmaceutical Science, Biochemistry Section, University of Catania, Catania, Italy
- Institute of Neurological Sciences, Italian National Research Council, Catania, Italy
| | - Sandrine Chamayou
- Unità di Medicina della Riproduzione, Fondazione Hera, Sant’Agata Li Battiati (CT), Italy
| | - Annalisa Liprino
- Department of Obstetrics and Gynecology and Radiological Sciences (OGiRA), University of Catania, Catania, Italy
| | - Antonino Guglielmino
- Unità di Medicina della Riproduzione, Fondazione Hera, Sant’Agata Li Battiati (CT), Italy
| | - Michele Fichera
- Department of Obstetrics and Gynecology and Radiological Sciences (OGiRA), University of Catania, Catania, Italy
| | - Massimo Caruso
- Department of Clinic and Molecular Biomedicine, University of Catania, Catania, Italy
| | - Maria Luisa Barcellona
- Department of Pharmaceutical Science, Biochemistry Section, University of Catania, Catania, Italy
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Abstract
The understanding of bone marrow stem cell plasticity and contribution of bone marrow stem cells to pathophysiology is evolving with the advent of innovative technologies. Recent data has led to new mechanistic insights in the field of mesenchymal stem cell (MSC) research, and an increased appreciation for the plasticity of the hematopoietic stem cell (HSC). In this review, we discuss current research examining the origin of pulmonary cell types from endogenous lung stem and progenitor cells as well as bone marrow-derived stem cells (MSCs and HSCs) and their contributions to lung homeostasis and pathology. We specifically highlight recent findings from our laboratory that demonstrate an HSC origin for pulmonary fibroblasts based on transplantation of a clonal population of cells derived from a single HSC. These findings demonstrate the importance of developing an understanding of the sources of effector cells in disease state. Finally, a perspective is given on the potential clinical implications of these studies and others addressing stem cell contributions to lung tissue homeostasis and pathology.
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Affiliation(s)
- Lindsay T McDonald
- Research Services, Ralph H Johnson VAMC, Charleston, SC, USA; Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Amanda C LaRue
- Research Services, Ralph H Johnson VAMC, Charleston, SC, USA; Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
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7
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Theise ND. Hepato-biliary stem cells: facts and fancies. Eur J Med Res 2014. [PMCID: PMC4118441 DOI: 10.1186/2047-783x-19-s1-s5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Franceschini V, Bettini S, Pifferi S, Menini A, Siciliano G, Ognio E, Brini AT, Di Oto E, Revoltella RP. Transplanted human adipose tissue-derived stem cells engraft and induce regeneration in mice olfactory neuroepithelium in response to dichlobenil subministration. Chem Senses 2014; 39:617-29. [PMID: 25056732 DOI: 10.1093/chemse/bju035] [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: 12/17/2022] Open
Abstract
We used immunodeficient mice, whose dorsomedial olfactory region was permanently damaged by dichlobenil inoculation, to test the neuroregenerative properties of transplanted human adipose tissue-derived stem cells after 30 and 60 days. Analysis of polymerase chain reaction bands revealed that stem cells preferentially engrafted in the lesioned olfactory epithelium compared with undamaged mucosa of untreated transplanted mice. Although basal cell proliferation in untransplanted lesioned mice did not give rise to neuronal cells in the olfactory mucosa, we observed clusters of differentiating olfactory cells in transplanted mice. After 30 days, and even more at 60 days, epithelial thickness was partially recovered to normal values, as also the immunohistochemical properties. Functional reactivity to odorant stimulation was also confirmed through electro-olfactogram recording in the dorsomedial epithelium. Furthermore, we demonstrated that engrafted stem cells fused with mouse cells in the olfactory organ, even if heterokaryons detected were too rare to hypothesize they directly repopulated the lesioned epithelium. The data reported prove that the migrating transplanted stem cells were able to induce a neuroregenerative process in a specific lesioned sensory area, enforcing the perspective that they could become an available tool for stem cell therapy.
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Affiliation(s)
- Valeria Franceschini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, and Foundation Onlus Stem Cells and Life, Via Selmi 3, 40126 Bologna, Italy,
| | - Simone Bettini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, and Foundation Onlus Stem Cells and Life, Via Selmi 3, 40126 Bologna, Italy
| | - Simone Pifferi
- International School for Advanced Studies, SISSA, Via Bonomea 265, 34136 Trieste, Italy
| | - Anna Menini
- International School for Advanced Studies, SISSA, Via Bonomea 265, 34136 Trieste, Italy
| | - Gabriele Siciliano
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56126 Pisa, Italy
| | - Emanuela Ognio
- IRCCS San Martino, National Institute for Cancer Research (IST), Largo Rosanna Benzi 10, 16132 Genua, Italy
| | - Anna Teresa Brini
- Department of Biomedical, Surgical and Odontoiatric Sciences, University of Milan, Via Vanvitelli 32, 2019 Milan, Italy
| | - Enrico Di Oto
- Department of Hematology and Oncology "L. and A. Seragnoli," Section of Anatomic Pathology at Bellaria Hospital, University of Bologna, Via Altura 3, 40139 Bologna, Italy and
| | - Roberto P Revoltella
- Institute for Chemical, Physical Processes, C.N.R. and Foundation Onlus Stem Cells and Life, Via L.L. Zamenhof 8, 56127 Pisa, Italy
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Cherqui S. Is genetic rescue of cystinosis an achievable treatment goal? Nephrol Dial Transplant 2013; 29:522-8. [PMID: 23861466 DOI: 10.1093/ndt/gft270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cystinosis is an autosomal recessive metabolic disease that belongs to the family of lysosomal storage disorders. The defective gene is CTNS, which encodes the lysosomal cystine transporter, cystinosin. Cystine accumulates in all tissues and leads to organ damage including end-stage renal disease. In this review, we outline the studies that support that genetic rescue of cystinosis could be an achievable goal, even though cystinosis is a multi-compartmental disease and cystinosin an intracellular transmembrane protein. Using the mouse model of cystinosis, the Ctns(-/-) mice, we showed that transplanted hematopoietic stem cells (HSCs) were able to act as vehicles for the delivery of a functional Ctns gene to the different organs and led to the significant decrease of the tissue cystine content and tissue preservation. Ex vivo gene-modified Ctns(-/-) HSC transplantation using a lentiviral vector containing CTNS complementary DNA (cDNA) was also successful in the Ctns(-/-) mice and built the foundations for a clinical trial for autologous HSC transplantation for cystinosis. The capacity of HSCs for rescuing non-hematopoietic disease is controversial, and new insights into regenerative medicine could be gained from unraveling the underlying mechanism of action.
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Affiliation(s)
- Stephanie Cherqui
- Department of Pediatrics, Division of Genetics, University of California, San Diego, La Jolla, California, USA
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Mukhopadhyay A. Perspective on liver regeneration by bone marrow-derived stem cells-a scientific realization or a paradox. Cytotherapy 2013; 15:881-92. [PMID: 23623692 DOI: 10.1016/j.jcyt.2013.02.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 12/27/2012] [Accepted: 02/09/2013] [Indexed: 12/11/2022]
Abstract
Bone marrow (BM)-derived stem cells are reported to have cellular plasticity, which provoked many investigators to use of these cells in the regeneration of nonhematopoietic tissues. However, adult stem cell plasticity contradicts our classic understanding on progressive restriction of the developmental potential of a cell type. Many alternate mechanisms have been proposed to explain this phenomenon; the working hypotheses for elucidating the cellular plasticity of BM-derived stem cells are on the basis of direct differentiation and/or fusion between donor and recipient cells. This review dissects the different outcomes of the investigations on liver regeneration, which were performed with the use of BM-derived stem cells in experimental animals, and reveals some critical factors to explain cellular plasticity. It has been hypothesized that the competent BM-derived stem/progenitor cells, under the influence of liver-regenerating cues, can directly differentiate into hepatic cells. This differentiation takes place as a result of genetic reprogramming, which may be possible in the chemically induced acute liver injury model or at the stage of fetal liver development. Cellular plasticity emerges as an important phenomenon in cell-based therapies for the treatment of many liver diseases in which tissue regeneration is necessary.
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Affiliation(s)
- Asok Mukhopadhyay
- Stem Cell Biology & Center for Molecular Medicine, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, India.
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Díez Villanueva P, Sanz-Ruiz R, Núñez García A, Fernández Santos ME, Sánchez PL, Fernández-Avilés F. Functional multipotency of stem cells: what do we need from them in the heart? Stem Cells Int 2012; 2012:817364. [PMID: 22966237 PMCID: PMC3433152 DOI: 10.1155/2012/817364] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 07/22/2012] [Accepted: 07/22/2012] [Indexed: 12/14/2022] Open
Abstract
After more than ten years of human research in the field of cardiac regenerative medicine, application of stem cells in different phases of ischemic heart disease has come to age. Randomized clinical trials have demonstrated that stem cell therapy can improve cardiac recovery after the acute phase of myocardial ischemia and in patients with chronic ischemic heart disease, and several efficacy phase III trials with clinical endpoints are on their way. Nevertheless, a complete knowledge on the mechanisms of action of stem cells still remains elusive. Of the three main mechanisms by which stem cells could exert their benefit, paracrine signaling from the administered cells and stimulation of endogenous repair are nowadays the most plausible ones. However, in this review we will define and discuss the concept of stem cell potency and differentiation, will examine the evidence available, and will depict future directions of research.
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Affiliation(s)
- Pablo Díez Villanueva
- Cardiology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Ricardo Sanz-Ruiz
- Cardiology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Alberto Núñez García
- Cardiology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | | | - Pedro L. Sánchez
- Cardiology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
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Sel S, Schilling UM, Nass N, Simm A, Garreis F, Knak M, Storsberg J, Kaiser M, Kalinski T, Ehrich D, Bredehorn-Mayr T, Paulsen F. Bone marrow cells and CD117-positive haematopoietic stem cells promote corneal wound healing. Acta Ophthalmol 2012; 90:e367-73. [PMID: 22520039 DOI: 10.1111/j.1755-3768.2012.02388.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE The present study was conducted to evaluate the therapeutic effects of topically applied bone marrow (BM) cells and CD117-positive haematopoietic stem (CD117(+)) cells on alkali-induced corneal ulcers. METHODS Bone marrow cells and CD117(+) cells were isolated from syngenic mice and labelled with an intracellular cell tracer. Defined corneal wounds were produced in 89 eyes of syngenic mice and allowed to partially heal in vivo for 6 hr. The alkali-burned eyes were enucleated 6 hr postinjury and randomly divided into three groups. Control group (33 eyes) was incubated with medium only. The treatment groups received either BM cells (30 eyes) or CD117(+) cells (26 eyes) suspended in medium. Re-epithelialization process of corneal defects was qualitatively and quantitatively assessed and statistically analysed. The corneas were examined by histological and immunohistochemical methods. RESULTS We found that the re-epithelialization of corneal wounds in both treatment groups was significantly accelerated as compared to the control group. During the follow-up period (85 hr), the corneal transparency was comparable in all groups. Morphological investigations of corneas from control and treatment group showed no evident differences in the phenotype of the regenerated epithelium. Additionally, corneas in the treatment groups were devoid of donor-derived BM cells and CD117(+) cells, respectively. CONCLUSIONS This study provides evidence that topical application of BM cells or CD117(+) cells can be used to reconstruct corneal surfaces. Because neither BM cells nor CD117(+) cells were integrated into the corneal epithelium, we suggest that soluble factors could be responsible for the positive effect of BM cells and CD117(+) cells on corneal wound healing.
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Affiliation(s)
- Saadettin Sel
- Department of Ophthalmology, University Erlangen-Nuremberg, Erlangen, Germany.
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Mauda-Havakuk M, Litichever N, Chernichovski E, Nakar O, Winkler E, Mazkereth R, Orenstein A, Bar-Meir E, Ravassard P, Meivar-Levy I, Ferber S. Ectopic PDX-1 expression directly reprograms human keratinocytes along pancreatic insulin-producing cells fate. PLoS One 2011; 6:e26298. [PMID: 22028850 PMCID: PMC3196540 DOI: 10.1371/journal.pone.0026298] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 09/23/2011] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Cellular differentiation and lineage commitment have previously been considered irreversible processes. However, recent studies have indicated that differentiated adult cells can be reprogrammed to pluripotency and, in some cases, directly into alternate committed lineages. However, although pluripotent cells can be induced in numerous somatic cell sources, it was thought that inducing alternate committed lineages is primarily only possible in cells of developmentally related tissues. Here, we challenge this view and analyze whether direct adult cell reprogramming to alternate committed lineages can cross the boundaries of distinct developmental germ layers. METHODOLOGY/PRINCIPAL FINDINGS We ectopically expressed non-integrating pancreatic differentiation factors in ectoderm-derived human keratinocytes to determine whether these factors could directly induce endoderm-derived pancreatic lineage and β-cell-like function. We found that PDX-1 and to a lesser extent other pancreatic transcription factors, could rapidly and specifically activate pancreatic lineage and β-cell-like functional characteristics in ectoderm-derived human keratinocytes. Human keratinocytes transdifferentiated along the β cell lineage produced processed and secreted insulin in response to elevated glucose concentrations. Using irreversible lineage tracing for KRT-5 promoter activity, we present supporting evidence that insulin-positive cells induced by ectopic PDX-1 expression are generated in ectoderm derived keratinocytes. CONCLUSIONS/SIGNIFICANCE These findings constitute the first demonstration of human ectoderm cells to endoderm derived pancreatic cells transdifferentiation. The study represents a proof of concept which suggests that transcription factors induced reprogramming is wider and more general developmental process than initially considered. These results expanded the arsenal of adult cells that can be used as a cell source for generating functional endocrine pancreatic cells. Directly reprogramming somatic cells into alternate desired tissues has important implications in developing patient-specific, regenerative medicine approaches.
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Affiliation(s)
- Michal Mauda-Havakuk
- Sheba Regenerative Medicine, Stem Cells and Tissue Engineering Center, Sheba Medical Center, Tel-Hashomer, Israel
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Naomi Litichever
- Sheba Regenerative Medicine, Stem Cells and Tissue Engineering Center, Sheba Medical Center, Tel-Hashomer, Israel
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ellad Chernichovski
- Sheba Regenerative Medicine, Stem Cells and Tissue Engineering Center, Sheba Medical Center, Tel-Hashomer, Israel
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Odelia Nakar
- Sheba Regenerative Medicine, Stem Cells and Tissue Engineering Center, Sheba Medical Center, Tel-Hashomer, Israel
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Eyal Winkler
- Department of Plastic and Reconstructive Surgery, Sheba Medical Center, Tel-Hashomer, Israel
| | - Ram Mazkereth
- Albert Katz Department of Neonatology, Sheba Medical Center, Tel-Hashomer, Israel
| | - Arie Orenstein
- Department of Plastic and Reconstructive Surgery, Sheba Medical Center, Tel-Hashomer, Israel
| | - Eran Bar-Meir
- Department of Plastic and Reconstructive Surgery, Sheba Medical Center, Tel-Hashomer, Israel
| | - Philippe Ravassard
- Biotechnology and Biotherapy group Centre de Recherche Institut du Cerveau et de la Moelle CNRS UMR7225, INSERM UMRS795, Université Pierre et Marie Curie, Paris, France
| | - Irit Meivar-Levy
- Sheba Regenerative Medicine, Stem Cells and Tissue Engineering Center, Sheba Medical Center, Tel-Hashomer, Israel
| | - Sarah Ferber
- Sheba Regenerative Medicine, Stem Cells and Tissue Engineering Center, Sheba Medical Center, Tel-Hashomer, Israel
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- * E-mail:
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14
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Desmet VJ. Ductal plates in hepatic ductular reactions. Hypothesis and implications. III. Implications for liver pathology. Virchows Arch 2011; 458:251-9. [PMID: 21301864 DOI: 10.1007/s00428-011-1048-3] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2010] [Revised: 01/18/2011] [Accepted: 01/20/2011] [Indexed: 01/09/2023]
Abstract
This article discusses on the basis of the ductal plate hypothesis the implication of the concept for several liver abnormalities. The occurrence of ductal plates (DP) during liver growth in childhood would explain the paraportal and parenchymal localizations of von Meyenburg complexes in postnatally developed parts of the liver, and their higher incidence in adulthood versus childhood. It partly clarifies the lack of postnatal intrahepatic bile duct development in Alagille syndrome and the reduced number of portal tracts in this disease. Ductular reactions (DRs) in DP configuration are the predominant type of progenitor cell reaction in fulminant necro-inflammatory liver disease, when lack of sufficient parenchymal regeneration results in liver failure. The concept of dissecting DRs explains the micronodular pattern of advanced biliary and alcoholic cirrhosis. The concept explains the DP patterns of bile ducts in several cases of biliary atresia, with implications for diagnosis and prognosis. The hypothesis also has an impact on concepts about stem/progenitor cells and their niche.
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Affiliation(s)
- Valeer J Desmet
- Department of Pathology, University Hospital K.U.Leuven, Leuven, Belgium,
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15
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Pesce M, Burba I, Gambini E, Prandi F, Pompilio G, Capogrossi MC. Endothelial and cardiac progenitors: boosting, conditioning and (re)programming for cardiovascular repair. Pharmacol Ther 2010; 129:50-61. [PMID: 21035506 DOI: 10.1016/j.pharmthera.2010.10.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 10/06/2010] [Indexed: 12/26/2022]
Abstract
Preclinical studies performed in cell culture and animal systems have shown the outstanding ability of stem cells to repair ischemic heart and lower limbs by promoting the formation of new blood vessels and new myocytes. In contrast, clinical studies of stem cell administration in patients with myocardial ischemia have revealed only modest, although promising, results. Basic investigations have shown the feasibility of adult cells reprogramming into pluripotent cells by defined factors, thus opening the way to the devise of protocols to ex vivo derive virtually unexhausted cellular pools. In contrast, cellular and molecular studies have indicated that risk factors limit adult-derived stem cell survival, proliferation and engraftment in ischemic tissues. The use of fully reprogrammed cells raises safety concerns; therefore, adult cells remain a primary option for clinicians interested in therapeutic cardiovascular repair. Pharmacologic approaches have been devised to restore the cardiovascular repair ability of failing progenitors from patients at risk. In the present contribution, the most advanced pharmacologic approaches to (re)program, boost, and condition endothelial and cardiac progenitor cells to enhance cardiovascular regeneration are discussed.
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Affiliation(s)
- Maurizio Pesce
- Laboratorio di Biologia Vascolare e Medicina Rigenerativa, Centro Cardiologico Monzino, IRCCS, Milan, Italy.
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16
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Ogawa M. Hematopoietic stem cell plasticity. Introduction. Exp Hematol 2010; 38:527-8. [PMID: 20434518 DOI: 10.1016/j.exphem.2010.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 04/20/2010] [Accepted: 04/20/2010] [Indexed: 10/19/2022]
Affiliation(s)
- Makio Ogawa
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA.
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