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Katsiani E, Garas A, Skentou C, Tsezou A, Messini CI, Dafopoulos K, Daponte A, Messinis IE. Chorionic villi derived mesenchymal like stem cells and expression of embryonic stem cells markers during long-term culturing. Cell Tissue Bank 2016; 17:517-29. [PMID: 27139894 DOI: 10.1007/s10561-016-9559-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 04/26/2016] [Indexed: 01/28/2023]
Abstract
Mesenchymal stem cells (MSCs) can be obtained from a variety of human tissues. MSCs derived from placental chorionic villi of the first trimester are likely to resemble, biologically, embryonic stem cells (ESC), due to the earlier development stage of placenta. In the present study long-term cultures of MSC-like cells were assessed in order to evaluate MSCs multipotent characteristics and molecular features during the period of culture. CV-cells obtained from 10 samples of chorionic villus displayed typical fibroblastoid morphology, undergone 20 passages during a period of 120 days, maintaining a stable karyotype throughout long term expansion. The cells were positive, for CD90, CD73, CD105, CD29, CD44, HLA ABC antigens and negative for CD14, CD34, AC133, and HLA DR antigens as resulted from the flow cytometry analysis. CV-cells were differentiated in adipocytes, osteoblasts, chondrocytes and neuronal cells under specific culture conditions. The expression of the ESC-gene markers POU5F1 (Oct-4) and NANOG was observed at earliest stages (4-12 passages) and not at the late stages (14-20 passages) by RT-PCR analysis. ZFP42 and SOX2 expression were not detected. Moreover, CV-cells were found to express GATA4 but not NES (Nestin). Chorionic villi-derived cells possess multipotent properties, display high proliferation rate and self-renew capacity, share common surface antigens with adult MSCs and express certain embryonics stem cells gene markers. These characteristics highlight chorionic villi as an attractive source of MSCs for the needs of regenerative medicine.
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Affiliation(s)
- E Katsiani
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - A Garas
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - C Skentou
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - A Tsezou
- Department of Biology and Laboratory of Cytogenetics and Molecular Genetics, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - C I Messini
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - K Dafopoulos
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - A Daponte
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece
| | - I E Messinis
- Department of Obstetrics and Gynaecology, Medical School, University Hospital, University of Thessaly, Larissa, Greece. .,Department of Obstetrics and Gynaecology, School of Health Sciences, Faculty of Medicine, University of Thessaly, 41110, Viopolis, Larissa, Greece.
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Porada CD, Atala AJ, Almeida-Porada G. The hematopoietic system in the context of regenerative medicine. Methods 2015; 99:44-61. [PMID: 26319943 DOI: 10.1016/j.ymeth.2015.08.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 07/06/2015] [Accepted: 08/23/2015] [Indexed: 12/16/2022] Open
Abstract
Hematopoietic stem cells (HSC) represent the prototype stem cell within the body. Since their discovery, HSC have been the focus of intensive research, and have proven invaluable clinically to restore hematopoiesis following inadvertent radiation exposure and following radio/chemotherapy to eliminate hematologic tumors. While they were originally discovered in the bone marrow, HSC can also be isolated from umbilical cord blood and can be "mobilized" peripheral blood, making them readily available in relatively large quantities. While their ability to repopulate the entire hematopoietic system would already guarantee HSC a valuable place in regenerative medicine, the finding that hematopoietic chimerism can induce immunological tolerance to solid organs and correct autoimmune diseases has dramatically broadened their clinical utility. The demonstration that these cells, through a variety of mechanisms, can also promote repair/regeneration of non-hematopoietic tissues as diverse as liver, heart, and brain has further increased their clinical value. The goal of this review is to provide the reader with a brief glimpse into the remarkable potential HSC possess, and to highlight their tremendous value as therapeutics in regenerative medicine.
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Affiliation(s)
- Christopher D Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, 391 Technology Way, Winston-Salem, NC 27157-1083, United States.
| | - Anthony J Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, 391 Technology Way, Winston-Salem, NC 27157-1083, United States.
| | - Graça Almeida-Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, 391 Technology Way, Winston-Salem, NC 27157-1083, United States.
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Porada CD, Rodman C, Ignacio G, Atala A, Almeida-Porada G. Hemophilia A: an ideal disease to correct in utero. Front Pharmacol 2014; 5:276. [PMID: 25566073 PMCID: PMC4263089 DOI: 10.3389/fphar.2014.00276] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 11/27/2014] [Indexed: 01/13/2023] Open
Abstract
Hemophilia A (HA) is the most frequent inheritable defect of the coagulation proteins. The current standard of care for patients with HA is prophylactic factor infusion, which is comprised of regular (2-3 times per week) intravenous infusions of recombinant or plasma-derived FVIII to maintain hemostasis. While this treatment has greatly increased the quality of life and lengthened the life expectancy for many HA patients, its high cost, the need for lifelong infusions, and the fact that it is unavailable to roughly 75% of the world's HA patients make this type of treatment far from ideal. In addition, this lifesaving therapy suffers from a high risk of treatment failure due to immune response to the infused FVIII. There is thus a need for novel treatments, such as those using stem cells and/or gene therapy, which have the potential to mediate long-term correction or permanent cure following a single intervention. In the present review, we discuss the clinical feasibility and unique advantages that an in utero approach to treating HA could offer, placing special emphasis on a new sheep model of HA we have developed and on the use of mesenchymal stromal cells (MSC) as cellular vehicles for delivering the FVIII gene.
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Affiliation(s)
| | | | | | | | - Graça Almeida-Porada
- Regenerative Medicine, Wake Forest Institute for Regenerative MedicineWinston-Salem, NC, 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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Porada CD, Almeida-Porada G. Treatment of Hemophilia A in Utero and Postnatally using Sheep as a Model for Cell and Gene Delivery. ACTA ACUST UNITED AC 2013; S1. [PMID: 23264887 DOI: 10.4172/2157-7412.s1-011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hemophilia A represents the most common inheritable deficiency of the coagulation proteins. Current state-of- the-art treatment consists of frequent prophylactic infusions of plasma-derived or recombinant FVIII protein to maintain hemostasis, and has greatly increased life expectancy and quality of life for many hemophilia A patients. This treatment approach is, however, far from ideal, due to the need for lifelong intravenous infusions, the high treatment cost, and the fact that it is unavailable to a large percentage of the world's hemophiliacs. There is thus a need for novel treatments that can promise long-term or permanent correction. In contrast to existing protein based therapeutics, gene therapy offers to provide a permanent cure following few, or even a single, treatment. In the present paper, we review ongoing work towards this end, focusing on studies we have performed in a large animal model. Some of the key topics covered in this review include the unique opportunities sheep offer as a model system, the re-establishment and clinical and molecular characterization of a line of sheep with severe hemophilia A, the advantages and feasibility of treating a disease like hemophilia A in utero, and the use of Mesenchymal Stem Cells (MSC) as cellular delivery vehicles for the FVIII gene. The review finishes with a brief discussion of our recent success correcting ovine hemophilia A with a postnatal transplant with gene-modified MSC, and the limitations of this approach that remain to be overcome.
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Porada CD, Almeida-Porada G. Mesenchymal stem cells as therapeutics and vehicles for gene and drug delivery. Adv Drug Deliv Rev 2010; 62:1156-66. [PMID: 20828588 DOI: 10.1016/j.addr.2010.08.010] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2010] [Revised: 08/26/2010] [Accepted: 08/27/2010] [Indexed: 12/17/2022]
Abstract
Mesenchymal stem cells (MSCs) possess a set of several fairly unique properties which make them ideally suited both for cellular therapies/regenerative medicine, and as vehicles for gene and drug delivery. These include: 1) relative ease of isolation; 2) the ability to differentiate into a wide variety of seemingly functional cell types of both mesenchymal and non-mesenchymal origin; 3) the ability to be extensively expanded in culture without a loss of differentiative capacity; 4) they are not only hypoimmunogenic, but they produce immunosuppression upon transplantation; 5) their pronounced anti-inflammatory properties; and 6) their ability to home to damaged tissues, tumors, and metastases following in vivo administration. In this review, we summarize the latest research in the use of mesenchymal stem cells in regenerative medicine, as immunomodulatory/anti-inflammatory agents, and as vehicles for transferring both therapeutic genes in genetic disease and genes designed to destroy malignant cells.
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Almeida-Porada G, Zanjani ED, Porada CD. Bone marrow stem cells and liver regeneration. Exp Hematol 2010; 38:574-80. [PMID: 20417684 PMCID: PMC2882990 DOI: 10.1016/j.exphem.2010.04.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Revised: 04/07/2010] [Accepted: 04/13/2010] [Indexed: 12/11/2022]
Abstract
Development of new approaches to treat patients with hepatic diseases that can eliminate the need for liver transplantation is imperative. Use of cell therapy as a means of repopulating the liver has several advantages over whole-organ transplantation because it would be less invasive, less immunogenic, and would allow the use, in some instances, of autologous-derived cells. Stem/progenitor cells that would be ideal for liver repopulation would need to have characteristics such as availability and ease of isolation, the ability to be expanded in vitro, ensuring adequate numbers of cells, susceptibility to modification by viral vector transduction/genetic recombination, to correct any underlying genetic defects, and the ability of restoring liver function following transplantation. Bone marrow-derived stem cells, such as hematopoietic, mesenchymal and endothelial progenitor cells possess some or most of these characteristics, making them ideal candidates for liver regenerative therapies. Here, we will summarize the ability of each of these stem cell populations to give rise to functional hepatic elements that could mediate repair in patients with liver damage/disease.
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Affiliation(s)
- Graça Almeida-Porada
- Department of Animal Biotechnology, University of Nevada, Reno, Reno, NV 89557-0104, USA.
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Friedman RSC, Krause DS. Regeneration and repair: new findings in stem cell research and aging. Ann N Y Acad Sci 2009; 1172:88-94. [PMID: 19735242 DOI: 10.1111/j.1749-6632.2009.04411.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
When it comes to the capacity to regenerate damaged parts of the body, humans are by no means the most advanced among animal species. At the level of single cell populations, humans do exhibit some degree of regenerative potential--for example, hepatocytes have the ability to restore up to 75% of a surgically removed or damaged liver. However, as every schoolchild knows, salamanders and starfish can regrow entire amputated appendages, a remarkable feat well beyond the scope of human capacity. Accordingly, the standing consensus position of the scientific community has deemed mammals fundamentally and unalterably different from those more "primitive" yet regeneration-competent species. Current approaches for the restoration of organ function in humans have therefore been limited to allogeneic organ or cell transplantation--strategies that, while effective, nonetheless exhibit major limitations based on availability of donor tissues and the risk of rejection unless extensive immunosuppression is induced.
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Affiliation(s)
- Rachel S C Friedman
- Sutter Medical Center of Santa Rosa, Family Medicine, Santa Rosa, California 95404, USA.
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Fitzpatrick E, Mtegha M, Dhawan A. Crigler-Najjar syndrome: therapeutic options and consequences of mutations in the UGT1A1 complex. Expert Rev Endocrinol Metab 2008; 3:725-737. [PMID: 30764062 DOI: 10.1586/17446651.3.6.725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Crigler-Najjar syndrome (CN), a rare inherited disorder characterized by failure of bilirubin glucuronidation, can lead to severe disability and death from kernicterus. Gilbert syndrome is a more common, benign familial unconjugated hyperbilirubinemia. The underlying problem in both conditions is impaired bilirubin conjugation and elimination due to a mutation in uridine 5'-diphosphate glucuronyltransferase. The mainstay of current management of CN is phototherapy, followed by liver transplantation. Here, we review other therapies, including hepatocyte transplantation, that have been successfully used to lessen the phenotype, although long-term engraftment of cells remains elusive. Gene therapy holds hope for the future whereby the patient's hepatocytes are transduced with the wild-type gene. Outstanding issues include safety of the gene vector and establishing immunotolerance to both vector and the new protein. The significant advances in understanding the relevance of mutations in UGT not only in glucuronidation of bilirubin, but other drugs and substances, are also reviewed.
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Affiliation(s)
- Emer Fitzpatrick
- a Paediatric Liver Centre, King's College London School of Medicine at King's College Hospital, Denmark Hill, London SE5 9PJ, UK
| | - Marumbo Mtegha
- a Paediatric Liver Centre, King's College London School of Medicine at King's College Hospital, Denmark Hill, London SE5 9PJ, UK
| | - Anil Dhawan
- b Paediatric Liver Centre, King's College London School of Medicine at King's College Hospital, Denmark Hill, London SE5 9PJ, UK.
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Roeder I, Lorenz R. Asymmetry of stem cell fate and the potential impact of the niche: observations, simulations, and interpretations. ACTA ACUST UNITED AC 2007; 2:171-80. [PMID: 17625253 DOI: 10.1007/s12015-006-0045-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 10/23/2022]
Abstract
Asymmetric cell division is a common concept to explain the capability of stem cells to simultaneously produce a continuous output of differentiated cells and to maintain their own population of undifferentiated cells. Whereas for some stem cell systems, an asymmetry in the division process has explicitly been demonstrated, no evidence for such a functional asymmetry has been shown for hematopoietic stem cells (HSC) so far. This raises the question regarding whether asymmetry of cell division is a prerequisite to explain obvious heterogeneity in the cellular fate of HSC. Through the application of a mathematical model based on self-organizing principles, we demonstrate that the assumption of asymmetric stem cell division is not necessary to provide a consistent account for experimentally observed asymmetries in the development of HSC. Our simulation results show that asymmetric cell fate can alternatively be explained by a reversible expression of functional stem cell potentials, controlled by changing cell-cell and cell-microenvironment interactions. The proposed view on stem cell organization is pointing to the potential role of stem cell niches as specific signaling environments, which induce developmental asymmetries and therefore, generate cell fate heterogeneity. The self-organizing concept is fully consistent with the functional definition of tissue stem cells. It naturally includes plasticity phenomena without contradicting a hierarchical appearance of the stem cell population. The concept implies that stem cell fate is only predictable in a probabilistic sense and that retrospective categorization of stem cell potential, based on individual cellular fates, provides an incomplete picture.
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Affiliation(s)
- Ingo Roeder
- Institute for Medical Informatics, Statistics and Epidemiology, University of Leipzig.
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Caraceni P, Giannone F, Catani L, Talarico S, Pertosa AM, Domenicali M, Fogli M, Principe A, Trevisani F, Baccarani M, Bernardi M, Lemoli RM. Effects of granulocyte colony stimulating-factor in a rat model of acute liver injury. Dig Liver Dis 2007; 39:943-51. [PMID: 17692581 DOI: 10.1016/j.dld.2007.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Revised: 06/05/2007] [Accepted: 06/06/2007] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Controversial experimental observations suggest that granulocyte colony stimulating-factor may promote hepatic regeneration after hepatectomy and chemical injury either by directly stimulating adult liver cells or facilitating the mobilization of bone marrow cells and their homing to the liver. We investigated whether different schedules of granulocyte colony stimulating-factor administration protect against experimental acute liver injury. METHODS Acute liver injury was induced in Sprague-Dawley fed rats by injecting a single intraperitoneal dose of carbon tetrachloride. Recombinant human granulocyte colony stimulating-factor or vehicle was given daily after intoxication (4 days) or before (7 days) and after carbon tetrachloride administration. Liver injury and regeneration were assessed 2 and 4 days after damage. Bone marrow cells mobilization was evaluated by the white blood cell count and the assessment of circulating clonogenic haematopoietic progenitors (colony forming unit-cells). RESULTS In this experimental model, although granulocyte colony stimulating-factor induced the significant mobilization of colony forming unit-cells, the study cytokine had no effect on liver injury (serum alanine amino transaminase level and necrotic index) and liver regeneration (mitotic index and bromodeoxyuridine incorporation), regardless of the administration schedule. CONCLUSIONS This study does not support the conclusion that: (1) granulocyte colony stimulating-factor exerts a protective effect against toxic-induced, non-lethal acute liver injury and (2) promotes hepatocyte regeneration.
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Affiliation(s)
- P Caraceni
- Department of Internal Medicine, Cardioangiology, Hepatology, University of Bologna, and Ospedale Policlinico S. Orsola-Malpighi, Bologna, Italy.
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Dezso K, Jelnes P, László V, Baghy K, Bödör C, Paku S, Tygstrup N, Bisgaard HC, Nagy P. Thy-1 is expressed in hepatic myofibroblasts and not oval cells in stem cell-mediated liver regeneration. THE AMERICAN JOURNAL OF PATHOLOGY 2007; 171:1529-37. [PMID: 17884967 PMCID: PMC2043514 DOI: 10.2353/ajpath.2007.070273] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Thy-1, a marker of hematopoietic stem cells, has been reported to be expressed by oval cells proliferating during stem cell-mediated regeneration in rat liver, suggesting a relationship between the two cell populations. Consequently, Thy-1 has become an accepted cell surface marker to sort hepatic oval cells. In the present study we used the well-characterized 2-acetylaminfluorene/partial hepatectomy model to induce transit-amplification of hepatic oval cells in the regenerating liver and characterized Thy-1 expression using Northern hybridization, quantitative reverse transcriptase-polymerase chain reaction analysis, immunofluorescence confocal microscopy, and immunoelectronmicroscopy. We found that Thy-1 expression was induced during transit-amplification of the oval cell population, but Thy-1 mRNA was not present in the alpha-fetoprotein-expressing oval cells. Thy-1 protein was consistently present outside the basement membrane surrounding the oval cells. It overlapped frequently with smooth muscle actin staining. A similar cellular localization of the Thy-1 protein was found on human liver specimens with ductular reactions obtained from patients with fulminant liver failure. Furthermore, Thy-1 was expressed by myofibroblasts in experimental liver fibrosis models without oval cell proliferation. We conclude that Thy-1 is not a marker of oval cells but is present on a subpopulation of myofibroblasts/stellate cells.
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Affiliation(s)
- Katalin Dezso
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
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Haga J, Wakabayashi G, Shimazu M, Tanabe M, Takahara T, Azuma T, Sato Y, Hakamata Y, Kobayashi E, Kitajima M. In vivo visualization and portally repeated transplantation of bone marrow cells in rats with liver damage. Stem Cells Dev 2007; 16:319-28. [PMID: 17521242 DOI: 10.1089/scd.2006.0086] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Recent reports have raised concerns over the feasibility of differentiating bone marrow cells (BMCs) into functional hepatocytes. Such augmentation is considered necessary for potential clinical use of these cells in liver diseases. The present investigation was designed to determine the kinetics of transplanted BMCs and evaluate the effects of repeated bone marrow transplantation (BMT) in rat models of CCl(4)-induced liver damage. The early kinetics of transplanted BMCs was evaluated with a charge-coupled-device (CCD) camera using BMCs obtained from green fluorescent protein (GFP) transgenic (Tg) rats and followed up with in vivo imaging system (IVIS) using BMCs obtained from firefly luciferase (luc) Tg rats. We used a portal infusion system for repeated BMT. BMCs were transplanted via a peripheral vein or the portal vein (PV) once or repeatedly using this system. The results revealed that BMCs accumulated more in the damaged liver than in the intact liver. In the experimental group receiving repeated BMT via the PV, the liver fibrosis was milder than that in the group not receiving BMT, and large clusters of albumin-producing cells were detected by albumin staining. The injected BMCs were shown to accumulate in the damaged liver. This strategy of repeated BMT has potential clinical use in enhancing the number of albumin-producing cells and suppressing liver fibrosis. This combination of beneficial effects may contribute to the benefits of cell transplantation therapy. Demonstration of the benefits of BMT in this study may be expected to have great significance for clinical trials.
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Affiliation(s)
- Junko Haga
- Department of Surgery, Keio University School of Medicine, Tokyo 1608582, Japan
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Khosrotehrani K, Reyes RR, Johnson KL, Freeman RB, Salomon RN, Peter I, Stroh H, Guégan S, Bianchi DW. Fetal cells participate over time in the response to specific types of murine maternal hepatic injury. Hum Reprod 2006; 22:654-61. [PMID: 17074776 DOI: 10.1093/humrep/del426] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND In humans, fetal microchimeric cells transferred to maternal tissues during pregnancy can adopt a hepatocyte phenotype. Our objective was to determine whether fetal cells participate in the response to specific murine post-partum hepatic injuries. METHODS Wild-type female mice were bred to males transgenic for the enhanced green fluorescent protein (GFP) (n = 42). Following delivery, we created models of chemical or surgical injury with carbon tetrachloride (CCl(4)) injection or by performing partial hepatectomy. Liver injury was assessed histologically. Fetal cells in maternal liver were detected and measured by real-time PCR amplification of the gfp transgene and by immunofluorescence using anti-GFP antibodies. RESULTS PCR results showed that in chemical but not surgical injury, fetal GFP+ cells were detectable in maternal liver and spleen and that fetal cell presence was significantly increased over time following injury (4 versus 8 weeks, P = 0.006 for liver and P = 0.0006 for spleen). In some animals, following chemical injury, GFP+ cells were detected by immunofluorescence. CONCLUSIONS The results of this preliminary study suggest that specific types of injury may elicit different fetal cell responses in maternal organs. There is a significant effect of time on fetal cell presence in liver and spleen. Furthermore, real-time PCR amplification is more sensitive than immunofluorescence for the detection of microchimeric fetal cells.
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Affiliation(s)
- K Khosrotehrani
- Division of Genetics, Department of Pediatrics, Tufts-New England Medical Center, Boston, MA 02111, USA
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Gouw ASH, van den Heuvel MC, Boot M, Slooff MJH, Poppema S, de Jong KP. Dynamics of the vascular profile of the finer branches of the biliary tree in normal and diseased human livers. J Hepatol 2006; 45:393-400. [PMID: 16750870 DOI: 10.1016/j.jhep.2006.03.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2005] [Revised: 03/03/2006] [Accepted: 03/29/2006] [Indexed: 12/04/2022]
Abstract
BACKGROUND/AIMS Results of our previous studies supported the concept that in the human liver, the smallest ramification of the biliary tree, the bile ductules, might contain hepatic progenitor cells. An insufficient proliferative response and loss of bile ductules preceded bile duct loss whereas preservation of bile ductules mitigated bile duct loss. METHODS Presently we investigated the vascular profile of the bile ductules in diseased human livers and livers showing normal histological features as controls, using CD34, CK7 and alphaSMA antibodies in a double immunolabeling technique. VEGF-A expression was also studied. In control livers bile ductules traversed the boundaries of the portal tract into the lobule as ductular-vascular units, in a pattern outlining the classic hexagonal lobule, following the vascular septa. The latter are thought to be extensions of portal veins. In diseased states the two structures reacted in unison. Increased or decreased numbers of ductules were consistently accompanied by similar changes of accompanying microvessels. Increased numbers of ductules and microvessels were paralleled by increased ductular expression of VEGF-A. RESULTS Our data support the concept that the smallest branches of the biliary tree might have their own vascular supply and that the ductules might in turn maintain their vasculature during regenerative processes.
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Affiliation(s)
- Annette S H Gouw
- Department of Pathology, University Medical Center Groningen, University of Groningen, The Netherlands.
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17
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Piscaglia AC, Zocco MA, Di Campli C, Sparano L, Rutella S, Monego G, Bonanno G, Michetti F, Mancuso S, Pola P, Leone G, Gasbarrini G, Gasbarrini A. How does human stem cell therapy influence gene expression after liver injury? Microarray evaluation on a rat model. Dig Liver Dis 2005; 37:952-63. [PMID: 16214431 DOI: 10.1016/j.dld.2005.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2005] [Accepted: 06/22/2005] [Indexed: 12/11/2022]
Abstract
BACKGROUND Tissue homeostasis is guaranteed by stem proliferating reserve, depending on dynamic changes in gene expression. A high plasticity is shown by the haematopoietic stem cells, potential source for liver regeneration. AIM We aimed to evaluate the gene expression modifications induced by human haematopoietic stem cell therapy after liver injury in rats. SUBJECTS Rats were sorted as follows: (A) human-haematopoietic stem cell injection after allyl alcohol liver damage; (B) only haematopoietic stem cell injection; (C) only allyl alcohol injection; and (D) sacrifice without any treatment. METHODS Livers, spleens and bone marrows were analysed with flow-cytometry. Livers were also studied by reverse-transcription PCR, histology, immunohistochemistry and microarray analysis; selected genes were confirmed by real-time PCR. RESULTS In subset A, haematopoietic stem cells were selectively recruited by liver, with respect to the group B, and they improved the liver regeneration process compared to group C. As regards microarrays, haematopoietic stem cell infusion upregulates 265 genes and downregulates 149 genes. Differentially regulated genes belong to a broad range of functional pathways, including proliferation, differentiation, adhesion/migration and transcripts related to oval-cell activation. Real-time PCR validated array results. CONCLUSIONS Our study confirmed the capacity of haematopoietic stem cells to contribute to liver regeneration. Moreover, microarray analysis led to the identification of genes whose regulation strongly correlates with a more efficient process of liver repair after haematopoietic stem cell injection.
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Affiliation(s)
- A C Piscaglia
- Department of Internal Medicine and Gastroenterology, Catholic University of Rome, Italy
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Gehling UM, Willems M, Dandri M, Petersen J, Berna M, Thill M, Wulf T, Müller L, Pollok JM, Schlagner K, Faltz C, Hossfeld DK, Rogiers X. Partial hepatectomy induces mobilization of a unique population of haematopoietic progenitor cells in human healthy liver donors. J Hepatol 2005; 43:845-53. [PMID: 16139387 DOI: 10.1016/j.jhep.2005.05.022] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2004] [Revised: 04/20/2005] [Accepted: 05/02/2005] [Indexed: 12/23/2022]
Abstract
BACKGROUND/AIMS Recent studies indicate that after transplantation, circulating bone marrow-derived stem cells migrate into the liver and contribute to liver regeneration. Whether such cells are actively recruited from the bone marrow for liver repair remains to be determined. In this regard, we investigated whether liver resection leads to a release of stem cell marker-positive (+) cells into the peripheral circulation. METHODS Peripheral blood samples from 11 living liver donors were analyzed by flow cytometry one day before and 12h after partial hepatectomy (PH) using antibodies against CD133, CD34, CD45, CD14, c-kit, bcrp-1. Immunomagnetic separation was performed to select CD133+ cells for functional assays in vitro. RESULTS A significant increase in the percentage of CD133+ cells could be demonstrated in all donors studied. Unexpectedly, virtually all CD133+ cells coexpressed CD45 and CD14, whereas only a small subset expressed CD34. No significant staining was observed for c-kit and bcrp-1. In culture, immunoselected CD133+ cells displayed characteristics of myelomonocytic precursors. In addition, enriched CD133+ generated an adherent cell population that expressed CK8, alpha-fetoprotein, and human albumin. CONCLUSIONS PH induces mobilization of a distinct population of myelomonocytic progenitor cells, which have hepatic differentiation potential in vitro, and might play a role in liver regeneration after PH in humans.
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Affiliation(s)
- Ursula M Gehling
- Department of Hepatobiliary Surgery and Visceral Transplantation, University Hospital Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
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Mishra L, Shetty K, Tang Y, Stuart A, Byers SW. The role of TGF-beta and Wnt signaling in gastrointestinal stem cells and cancer. Oncogene 2005; 24:5775-89. [PMID: 16123810 DOI: 10.1038/sj.onc.1208924] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The past three decades have seen an unremitting quest to identify and understand gastrointestinal stem cells, their plasticity in differentiating across cell types, as well as their role in normal, regenerative, and cancer cells. A fascinating hallmark of stem cells is their ability to undergo assymetric cell division, which entails replication of the DNA followed by division of the nucleus and partitioning of the cytoplasm to yield two different daughter cells: a stem cell as well as a committed progenitor cell, the latter proliferating into differentiated progeny. We are only just beginning to understand how normally quiescent, tissue-specific stem cells interpret a vast array of signals to develop into the gastrointestinal system. These signaling pathways include the transforming growth factor-beta (TGF-beta) superfamily, Wnt, FGFs, Hedgehog, Hox proteins that originate from surrounding mesodermal/stromal tissue as well as endodermal/epithelial tissue. TGF-beta and wnt proteins are key morphogens that ultimately influence cell division and cell fate, so that gut endodermal stem cells enter the cell cycle, and undergo cell division that ultimately leads to differentiated cells such as functional hepatocytes, gastric parietal cells, or gut epithelial cells. Disruptions and errors in this process usually lead to tissue-specific gastrointestinal cancers such as hepatocellular cancers, gastric adenocarcinomas, and colonic adenocarcinomas. An increasingly complex and coherent view of stem/progenitor cell signaling networks, which coordinate cell growth, proliferation, stress management, and survival, is helping to define the fragile areas where malignancies are likely to develop and shows promise for the development of better cancer therapies.
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Affiliation(s)
- Lopa Mishra
- Department of Surgery, Medicine, The Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
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N/A, 李 定, 陈 源. N/A. Shijie Huaren Xiaohua Zazhi 2005; 13:1941-1944. [DOI: 10.11569/wcjd.v13.i16.1941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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21
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Piscaglia AC, Di Campli C, Zocco MA, Di Gioacchino G, Novi M, Rutella S, Bonanno G, Monego G, Vecchio FM, Michetti F, Mancuso S, Leone G, Gasbarrini G, Pola P, Gasbarrini A. Human Cordonal Stem Cell Intraperitoneal Injection Can Represent a Rescue Therapy After an Acute Hepatic Damage in Immunocompetent Rats. Transplant Proc 2005; 37:2711-4. [PMID: 16182791 DOI: 10.1016/j.transproceed.2005.06.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND AIM Tissue homeostasis and turnover require reserve stem proliferating cells. Several studies performed on immunodeficient animals have suggested a degree of plasticity by the hematopoietic stem cell compartment that may represent source for liver regeneration. We sought to explore the hepatic differentiation potential of hematopoietic stem cells from human cord blood, after toxic liver damage induced by allyl-alcohol in immunocompetent rats. MATERIALS AND METHODS Wistar rats were divided into groups (A) allyl-alcohol intraperitoneal injection with hematopoietic stem cell intraperitoneal infusion at 1 day and sacrifice 3 days later; (B) stem cell injection and sacrifice 3 days later; (C) allyl-alcohol infusion and sacrifice 4 days later; and (D) sacrifice without any treatment. Livers, spleens, and bone marrows were analysed for human stem cells using flow-cytometry; livers were also tested by histology and immunohistochemistry to study the pattern of hepatic regeneration after damage and human stem cell conversion into hepatocyte-like cells, respectively. RESULTS Flow-cytometry revealed selective recruitment of human hematopoietic stem cells by damaged livers (group A) compared with control group B. In addition, liver damage was reduced in animals treated with stem cells. Immunohistochemistry demonstrated that human stem cells could convert hepatic cells. CONCLUSIONS Our study demonstrated that hematopoietic stem cells selectively recruited by injured livers can contribute to hepatic regeneration after acute toxic damage in immunocompetent recipients.
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Affiliation(s)
- A C Piscaglia
- Dept. of Internal Medicine and Gastroenterology, Catholic University of Rome, Rome, Italy
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Lee KD, Kuo TKC, Whang-Peng J, Chung YF, Lin CT, Chou SH, Chen JR, Chen YP, Lee OKS. In vitro hepatic differentiation of human mesenchymal stem cells. Hepatology 2004; 40:1275-84. [PMID: 15562440 DOI: 10.1002/hep.20469] [Citation(s) in RCA: 646] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study examined whether mesenchymal stem cells (MSCs), which are stem cells originated from embryonic mesoderm, are able to differentiate into functional hepatocyte-like cells in vitro. MSCs were isolated from human bone marrow and umbilical cord blood, and the surface phenotype and the mesodermal multilineage differentiation potentials of these cells were characterized and tested. To effectively induce hepatic differentiation, we designed a novel 2-step protocol with the use of hepatocyte growth factor and oncostatin M. After 4 weeks of induction, cuboidal morphology, which is characteristic of hepatocytes, was observed, and cells also expressed marker genes specific of liver cells in a time-dependent manner. Differentiated cells further demonstrated in vitro functions characteristic of liver cells, including albumin production, glycogen storage, urea secretion, uptake of low-density lipoprotein, and phenobarbital-inducible cytochrome P450 activity. In conclusion, human MSCs from different sources are able to differentiate into functional hepatocyte-like cells and, hence, may serve as a cell source for tissue engineering and cell therapy of hepatic tissues. Furthermore, the broad differentiation potential of MSCs indicates that a revision of the definition may be required.
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Affiliation(s)
- Kuan-Der Lee
- Division of Cancer Research, National Health Research Institutes, Taiwan
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Burra P, Samuel D, Wendon J, Pietrangelo A, Gupta S. Strategies for liver support: from stem cells to xenotransplantation. J Hepatol 2004; 41:1050-9. [PMID: 15582142 DOI: 10.1016/j.jhep.2004.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Patrizia Burra
- Department of Surgical and Gastroenterological Sciences, University Hospital, Padova, Italy.
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Theise ND. Liver stem cells: prospects for treatment of inherited and acquired liver diseases. Expert Opin Biol Ther 2003; 3:403-8. [PMID: 12783609 DOI: 10.1517/14712598.3.3.403] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
It is now understood that there are three cell compartments which physiologically contribute to vertebrate liver parenchymal maintenance and regeneration after injury: mature liver cells (hepatocytes, cholangiocytes), intraorgan stem/progenitor cells (cells of the proximal biliary tree, periductal cells) and extraorgan stem cells (from the circulation and the bone marrow). All of these cell populations, as well as other, non-physiologic stem cells (e.g., mesenchymal stromal cells from the bone marrow, fetal hepatoblasts, embryonic stem [ES] cells), may be used therapeutically for treatment of inherited and acquired liver diseases. This article will summarise our current understanding of these various cell populations, and review possible approaches to their therapeutic use, including cell transplantation, bioartificial liver devices (BLDs), gene therapy and administration of exogenous factors to stimulate normal physiological responses to repair.
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Affiliation(s)
- Neil D Theise
- Beth Israel Medical Center, Division of Digestive Diseases, 1st Avenue at 16th Street, New York, NY 10003, USA.
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Affiliation(s)
- Malcolm R Alison
- Department of Histopathology, Imperial College London, Hammersmith Hospital, Hammersmith Campus, Du Cane Road, W12 0NN, London, UK.
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