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Therapeutic Efficiency of Nasal Mucosa-Derived Ectodermal Mesenchymal Stem Cells in Rats with Acute Hepatic Failure. Stem Cells Int 2023; 2023:6890299. [PMID: 36655034 PMCID: PMC9842420 DOI: 10.1155/2023/6890299] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/06/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023] Open
Abstract
Background Liver transplantation is limited by the insufficiency of liver organ donors when treating end-stage liver disease or acute liver failure (ALF). Ectodermal mesenchymal stem cells (EMSCs) derived from nasal mucosa have emerged as an alternative cell-based therapy. However, the role of EMSCs in acute liver failure remains unclear. Methods EMSCs were obtained from the nasal mucosa tissue of rats. First, EMSCs were seeded on the gelatin-chitosan scaffolds, and the biocompatibility was evaluated. Next, the protective effects of EMSCs were investigated in carbon tetrachloride- (CCl4-) induced ALF rats. Finally, we applied an indirect coculture system to analyze the paracrine effects of EMSCs on damaged hepatocytes. A three-step nontransgenic technique was performed to transform EMSCs into hepatocyte-like cells (HLCs) in vitro. Results EMSCs exhibited a similar phenotype to other mesenchymal stem cells along with self-renewal and multilineage differentiation capabilities. EMSC-seeded gelatin-chitosan scaffolds can increase survival rates and ameliorate liver function and pathology of ALF rat models. Moreover, transplanted EMSCs can secrete paracrine factors to promote hepatocyte regeneration, targeted migration, and transdifferentiate into HLCs in response to the liver's microenvironment, which will then repair or replace the damaged hepatocytes. Similar to mature hepatocytes, HLCs generated from EMSCs possess functions of expressing specific hepatic markers, storing glycogen, and producing urea. Conclusions These results confirmed the feasibility of EMSCs in acute hepatic failure treatment. To our knowledge, this is the first time that EMSCs are used in the therapy of liver diseases. EMSCs are expected to be a novel and promising cell source in liver tissue engineering.
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Hu C, He Y, Liu D, Zhao L, Fang S, Tan B, Dong S, Wang Y, He T, Bi Y. Hypoxia Preconditioning Promotes the Proliferation and Migration of Human Urine-Derived Stem Cells in Chronically Injured Liver of Mice by Upregulating CXCR4. Stem Cells Dev 2021; 30:526-536. [PMID: 33715421 DOI: 10.1089/scd.2021.0008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Our previous studies reported that urine-derived stem cells (USCs) possess a strong self-renewal ability and multidirectional differentiation potential and thus are an ideal candidate cell source for hepatocellular transplantation. USC transplantation may repair the pathological changes of chronic liver injury to a certain extent, and hypoxia pretreatment may improve the recovery efficiency of USCs. Therefore, the present study aimed to investigate the possible mechanism of the improved recovery efficiency of hypoxia-pretreated USCs. A chronic liver injury model was established by intraperitoneal injection of carbon tetrachloride into nude mice. USCs were transplanted via caudal vein injection. Hematoxylin and eosin staining and Masson's staining were performed to determine the pathology of the liver. Immunofluorescence and frozen section biopsy were performed to determine differentiation and cell fusion in vivo. Cell coculture was used to detect cell fusion in vitro. The proliferative ability of USCs was evaluated using cell viability and colony formation assays, and the migratory functions of USCs were evaluated using wound healing and transwell assays. The degeneration of hepatocytes and the level of fibrosis in the hypoxia transplantation group were improved compared with the normoxia transplantation group. It was found that exogenous USCs may be differentiated into functional hepatocytes or fused with hepatocytes in vivo. C-X-C motif chemokine (CXC) ligand 12 (CXCL12) expression levels in liver tissue of the chronic liver injury model were upregulated compared with those in the control group. The expression of CXC receptor 4 (CXCR4) in hypoxia-pretreated USCs was also significantly upregulated. The results suggested that USCs fused with different types of liver cells and that hypoxia treatment promoted the fusion rate in vitro by upregulating CXCR4 signaling. Furthermore, hypoxia pretreatment promoted cell proliferation, migration, and cell fusion by inducing CXCR4 signaling, leading to USC-elicited liver tissue recovery following injury in vivo.
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Affiliation(s)
- Chaoqun Hu
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Yun He
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Daijiang Liu
- Department of Gastroenterology, Chongqing University Central Hospital, Chongqing, P.R. China
| | - Li Zhao
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Shuyu Fang
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Bin Tan
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Shifang Dong
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Yi Wang
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Tongchuan He
- Molecular Oncology Laboratory, Department of Surgery, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Yang Bi
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
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Lu J, Shen X, Sun X, Yin H, Yang S, Lu C, Wang Y, Liu Y, Huang Y, Yang Z, Dong X, Wang C, Guo Q, Zhao L, Sun X, Lu S, Mikos AG, Peng J, Wang X. Increased recruitment of endogenous stem cells and chondrogenic differentiation by a composite scaffold containing bone marrow homing peptide for cartilage regeneration. Theranostics 2018; 8:5039-5058. [PMID: 30429885 PMCID: PMC6217070 DOI: 10.7150/thno.26981] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/27/2018] [Indexed: 01/17/2023] Open
Abstract
Even small cartilage defects could finally degenerate to osteoarthritis if left untreated, owing to the poor self-healing ability of articular cartilage. Stem cell transplantation has been well implemented as a common approach in cartilage tissue engineering but has technical complexity and safety concerns. The stem cell homing-based technique emerged as an alternative promising therapy for cartilage repair to overcome traditional limitations. In this study, we constructed a composite hydrogel scaffold by combining an oriented acellular cartilage matrix (ACM) with a bone marrow homing peptide (BMHP)-functionalized self-assembling peptide (SAP). We hypothesized that increased recruitment of endogenous stem cells by the composite scaffold could enhance cartilage regeneration. Methods: To test our hypothesis, in vitro proliferation, attachment and chondrogenic differentiation of rabbit mesenchymal stem cells (MSCs) were tested to confirm the bioactivities of the functionalized peptide hydrogel. The composite scaffold was then implanted into full-thickness cartilage defects on rabbit knee joints for cartilage repair, in comparison with microfracture or other sample groups. Stem cell recruitment was monitored by dual labeling with CD29 and CD90 under confocal microcopy at 1 week after implantation, followed by chondrogenic differentiation examined by qRT-PCR. Repaired tissue of the cartilage defects was evaluated by histological and immunohistochemistry staining, microcomputed tomography (micro-CT) and magnetic resonance imaging (MRI) at 3 and 6 months post-surgery. Macroscopic and histological scoring was done to evaluate the optimal in vivo repair outcomes of this composite scaffold. Results: The functionalized SAP hydrogels could stimulate rabbit MSC proliferation, attachment and chondrogenic differentiation during in vitro culture. At 7 days after implantation, increased recruitment of MSCs based on CD29+ /CD90+ double-positive cells was found in vivo in the composite hydrogel scaffold, as well as upregulation of cartilage-associated genes (aggrecan, Sox9 and type II collagen). After 3 and 6 months post-surgery, the articular cartilage defect in the composite scaffold-treated group was fully covered with cartilage-like tissue with a smooth surface, which was similar to the surrounding native cartilage, according to the results of histological and immunohistochemistry staining, micro-CT and MRI analysis. Macroscopic and histological scoring confirmed that the quality of cartilage repair was significantly improved with implantation of the composite scaffold at each timepoint, in comparison with microfracture or other sample groups. Conclusion: Our findings demonstrated that the composite scaffold could enhance endogenous stem cell homing and chondrogenic differentiation and significantly improve the therapeutic outcome of chondral defects. The present study provides a promising approach for in vivo cartilage repair without cell transplantation. Optimization of this strategy may offer great potential and benefits for clinical application in the future.
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Affiliation(s)
- Jiaju Lu
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Xuezhen Shen
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Xun Sun
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Heyong Yin
- Experimental Surgery and Regenerative Medicine, Department of Surgery, Ludwig-Maximilians-University, Munich 80336, Germany
| | - Shuhui Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Changfeng Lu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Yu Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Yifan Liu
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yingqi Huang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Zijin Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Xianqi Dong
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Chenhao Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Quanyi Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Lingyun Zhao
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Xiaodan Sun
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Shibi Lu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Antonios G. Mikos
- Department of Bioengineering, Bioscience Research Collaborative, Rice University, Texas 77030, USA
| | - Jiang Peng
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Du C, Jiang M, Wei X, Qin J, Xu H, Wang Y, Zhang Y, Zhou D, Xue H, Zheng S, Zeng W. Transplantation of human matrix metalloproteinase-1 gene-modified bone marrow-derived mesenchymal stem cell attenuates CCL4-induced liver fibrosis in rats. Int J Mol Med 2018; 41:3175-3184. [PMID: 29512750 PMCID: PMC5881841 DOI: 10.3892/ijmm.2018.3516] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 02/12/2018] [Indexed: 12/18/2022] Open
Abstract
It has been reported that bone marrow-derived mesenchymal stem cells (BMSCs) alleviated liver fibrosis. We investigated whether BMSCs transfected with human matrix metalloproteinase 1 (BMSCs/MMP1) would improve their therapeutic effect in liver fibrosis induced by carbon tetrachloride (CCl4) in rats. BMSCs were transfected with an adenovirus carrying enhanced green fluorescence protein (GFP) and human MMP1 gene. BMSCs or BMSCs/MMP1 were directly injected into fibrotic rats via the tail vein. GFP-labeled cells appeared in the fibrotic liver after BMSC transplantation. The expression of BMSCs/MMP1 elevated levels of MMP1 in vitro. Although BMSC administration reduced liver fibrosis, transplantation of BMSCs/MMP1 enhanced the reduction of liver fibrosis to a higher level. Treatment with BMSCs/MMP1 not only decreased collagen content but also suppressed activation of hepatic stellate cells (HSCs) in fibrotic liver, which led to subsequent improvement of both liver injury and fibrosis. Treatment with BMSCs/MMP1 resulted in an improved therapeutic effect compared with BMSCs alone, which is probably because of the sustainably expressed MMP1 level in the liver. BMSCs/MMP1 transplantation not only improved biochemical parameters but also attenuated progression of liver fibrosis, suggesting that BMSCs may be a potential cell source in preventing liver fibrosis and MMP1 gene may enhance the anti-fibrotic effect of BMSCs.
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Affiliation(s)
- Chao Du
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Mingde Jiang
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Xiaolong Wei
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Jianpin Qin
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Hui Xu
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Yunxia Wang
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Yong Zhang
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Dejiang Zhou
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Hongli Xue
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Shumei Zheng
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
| | - Weizheng Zeng
- Department of Gastroenterology and Hepatology, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China
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Lee CW, Chen YF, Wu HH, Lee OK. Historical Perspectives and Advances in Mesenchymal Stem Cell Research for the Treatment of Liver Diseases. Gastroenterology 2018; 154:46-56. [PMID: 29107021 DOI: 10.1053/j.gastro.2017.09.049] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 09/23/2017] [Accepted: 09/27/2017] [Indexed: 12/14/2022]
Abstract
Liver transplantation is the only effective therapy for patients with decompensated cirrhosis and fulminant liver failure. However, due to a shortage of donor livers and complications associated with immune suppression, there is an urgent need for new therapeutic strategies for patients with end-stage liver diseases. Given their unique function in self-renewal and differentiation potential, stem cells might be used to regenerate damaged liver tissue. Recent studies have shown that stem cell-based therapies can improve liver function in a mouse model of hepatic failure. Moreover, acellular liver scaffolds seeded with hepatocytes produced functional bioengineered livers for organ transplantation in preclinical studies. The therapeutic potential of stem cells or their differentiated progenies will depend on their capacity to differentiate into mature and functional cell types after transplantation. It will also be important to devise methods to overcome their genomic instability, immune reactivity, and tumorigenic potential. We review directions and advances in the use of mesenchymal stem cells and their derived hepatocytes for liver regeneration. We also discuss the potential applications of hepatocytes derived from human pluripotent stem cells and challenges to using these cells in treating end-stage liver disease.
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Affiliation(s)
- Chien-Wei Lee
- Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan; Stem Cell Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Fan Chen
- Stem Cell Research Center, National Yang-Ming University, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hao-Hsiang Wu
- Stem Cell Research Center, National Yang-Ming University, Taipei, Taiwan; Institute of Biophotonics, National Yang-Ming University, Taipei, Taiwan
| | - Oscar K Lee
- Stem Cell Research Center, National Yang-Ming University, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan; Taipei City Hospital, Taipei, Taiwan.
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6
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Zhang GZ, Sun HC, Zheng LB, Guo JB, Zhang XL. In vivo hepatic differentiation potential of human umbilical cord-derived mesenchymal stem cells: Therapeutic effect on liver fibrosis/cirrhosis. World J Gastroenterol 2017; 23:8152-8168. [PMID: 29290652 PMCID: PMC5739922 DOI: 10.3748/wjg.v23.i46.8152] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 05/29/2017] [Accepted: 08/08/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the hepatic differentiation potential of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) and to evaluate their therapeutic effect on liver fibrosis/cirrhosis.
METHODS A CCl4-induced liver fibrotic/cirrhotic rat model was used to assess the effect of hUC-MSCs. Histopathology was assessed by hematoxylin and eosin (H&E), Masson trichrome and Sirius red staining. The liver biochemical profile was measured using a Beckman Coulter analyzer. Expression analysis was performed using immunofluorescent staining, immunohistochemistry, Western blot, and real-time PCR.
RESULTS We demonstrated that the infused hUC-MSCs could differentiate into hepatocytes in vivo. Functionally, the transplantation of hUC-MSCs to CCl4-treated rats improved liver transaminases and synthetic function, reduced liver histopathology and reversed hepatobiliary fibrosis. The reversal of hepatobiliary fibrosis was likely due to the reduced activation state of hepatic stellate cells, decreased collagen deposition, and enhanced extracellular matrix remodeling via the up-regulation of MMP-13 and down-regulation of TIMP-1.
CONCLUSION Transplanted hUC-MSCs could differentiate into functional hepatocytes that improved both the biochemical and histopathologic changes in a CCl4-induced rat liver fibrosis model. hUC-MSCs may offer therapeutic opportunities for treating hepatobiliary diseases, including cirrhosis.
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Affiliation(s)
- Guo-Zun Zhang
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
- First Department of Gastroenterology, Cangzhou Central Hospital, Cangzhou 061001, Hebei Province, China
| | - Hui-Cong Sun
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
- Department of Internal Medicine, Ningbo Women and Children’s Hospital, Ningbo 315012, Zhejiang Province, China
| | - Li-Bo Zheng
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Jin-Bo Guo
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
| | - Xiao-Lan Zhang
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
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Zhang L, Guan Z, Ye JS, Yin YF, Stoltz JF, de Isla N. Research progress in liver tissue engineering. Biomed Mater Eng 2017; 28:S113-S119. [PMID: 28372286 DOI: 10.3233/bme-171632] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Liver transplantation is the definitive treatment for patients with end-stage liver diseases (ESLD). However, it is hampered by shortage of liver donor. Liver tissue engineering, aiming at fabricating new livers in vitro, provides a potential resolution for donor shortage. Three elements need to be considered in liver tissue engineering: seeding cell resources, scaffolds and bioreactors. Studies have shown potential cell sources as hepatocytes, hepatic cell line, mesenchymal stem cells and others. They need scaffolds with perfect biocompatiblity, suitable micro-structure and appropriate degradation rate, which are essential charateristics for cell attachment, proliferation and secretion in forming extracellular matrix. The most promising scaffolds in research include decellularized whole liver, collagens and biocompatible plastic. The development and function of cells in scaffold need a microenvironment which can provide them with oxygen, nutrition, growth factors, et al. Bioreactor is expected to fulfill these requirements by mimicking the living condition in vivo. Although there is great progress in these three domains, a large gap stays still between their researches and applications. Herein, we summarized the recent development in these three major fields which are indispensable in liver tissue engineering.
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Affiliation(s)
- Lei Zhang
- BRC, First Hospital of Kun Ming (Affiliated Calmette Hospital of Kunming Medical University), Kunming, China
| | - Zheng Guan
- BRC, First Hospital of Kun Ming (Affiliated Calmette Hospital of Kunming Medical University), Kunming, China
| | - Jun-Song Ye
- BRC, First Hospital of Kun Ming (Affiliated Calmette Hospital of Kunming Medical University), Kunming, China
| | - Yan-Feng Yin
- BRC, First Hospital of Kun Ming (Affiliated Calmette Hospital of Kunming Medical University), Kunming, China
| | - Jean-François Stoltz
- Lorraine University and CNRS UNR 7365, Medical college, Vandoeuvre-lès-Nancy, France.,CHRU Nancy, Unité Therapie Cellulaire et Tissulaire, Vandoeuvre-lès-Nancy, France
| | - Natalia de Isla
- Lorraine University and CNRS UNR 7365, Medical college, Vandoeuvre-lès-Nancy, France
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Kim JH, Kim KS, Lee SW, Kim HW, Joo DJ, Kim YS, Suh H. Retinoic Acid-induced Differentiation of Rat Mesenchymal Stem Cells into β-Cell Lineage. ACTA ACUST UNITED AC 2015. [DOI: 10.4285/jkstn.2015.29.3.118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jae Hyung Kim
- Graduate Program of Nano Science and Technology, Graduate School of Yonsei University, Seoul, Korea
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Sik Kim
- Graduate Program of Nano Science and Technology, Graduate School of Yonsei University, Seoul, Korea
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Woo Lee
- Graduate Program of Nano Science and Technology, Graduate School of Yonsei University, Seoul, Korea
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun Woo Kim
- Graduate Program of Nano Science and Technology, Graduate School of Yonsei University, Seoul, Korea
- Department of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Yu Seun Kim
- Graduate Program of Nano Science and Technology, Graduate School of Yonsei University, Seoul, Korea
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Hwal Suh
- Graduate Program of Nano Science and Technology, Graduate School of Yonsei University, Seoul, Korea
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul, Korea
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Nazarov C, Lo Surdo J, Bauer SR, Wei CH. Assessment of immunosuppressive activity of human mesenchymal stem cells using murine antigen specific CD4 and CD8 T cells in vitro. Stem Cell Res Ther 2013; 4:128. [PMID: 24406271 PMCID: PMC3854780 DOI: 10.1186/scrt339] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 10/09/2013] [Indexed: 12/29/2022] Open
Abstract
Introduction Mesenchymal stem cells (MSCs) have immunosuppressive activity. They do not induce allospecific T cell responses, making them promising tools for reducing the severity of graft versus host disease (GVHD) as well as treating various immune diseases. Currently, there is a need in the MSC field to develop a robust in vitro bioassay which can characterize the immunosuppressive function of MSCs. Methods Murine clonal CD4 and CD8 T cells were stimulated with cognate peptide antigen and antigen presenting cells (APCs) in the absence or presence of human MSCs, different aspects of T cell activation were monitored and analyzed using flow cytometery, real time RT-PCR and cytokine measurement. Results Human MSCs (hMSCs) can alter multiple aspects of murine T cell activation induced by stimulation with specific antigen, including: reduced proliferation, inhibited or stimulated cell surface marker expression (CD25, CD69, CD44 and CD62L), inhibited mRNA expression of transcription factors (T-bet and GATA-3) and decreased cytokine expression (interferon-gamma, interleukin-10). Disappearance of activation-induced cluster formation and decreased apoptosis of CD8 T cells were also observed. Moreover, the effects are specific to MSCs; incubating the T cells with non-MSC control cell lines had no effect on T cell proliferation and activation. Conclusions Clonal murine T cells can be used to measure, characterize, and quantify the in vitro immunosuppressive activity of human MSCs, representing a promising approach to improve bioassays for immunosuppression.
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Kim JH, Shin SH, Li TZ, Suh H. Influence of in vitro biomimicked stem cell 'niche' for regulation of proliferation and differentiation of human bone marrow-derived mesenchymal stem cells to myocardial phenotypes: serum starvation without aid of chemical agents and prevention of spontaneous stem cell transformation enhanced by the matrix environment. J Tissue Eng Regen Med 2013; 10:E1-13. [PMID: 23897724 DOI: 10.1002/term.1754] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 02/14/2013] [Accepted: 03/20/2013] [Indexed: 12/28/2022]
Abstract
Niche appears important for preventing the spontaneous differentiation or senescence that cells undergo during in vitro expansion. In the present study, it was revealed that human bone marrow-derived mesenchymal stem cells (hBM-MSCs) undergo senescence-related differentiation into the myocardial lineage in vitro without any induction treatment. This phenomenon occurred over the whole population of MCSs, much different from conventional differentiation with limited frequency of occurrence, and was accompanied by a change of morphology into large, flat cells with impeded proliferation, which are the representative indications of MSC senescence. By culturing MSCs under several culture conditions, it was determined that induction treatment with 5-azacytidine was not associated with the phenomenon, but the serum-starvation condition, under which proliferation is severely hampered, caused senescence progression and upregulation of cardiac markers. Nevertheless, MSCs gradually developed a myocardial phenotype under normal culture conditions over a prolonged culture period and heterogeneous populations were formed. In perspectives of clinical applications, this must be prevented for fair and consistent outcomes. Hence, the biomimetic 'niche' was constituted for hBM-MSCs by cultivating on a conventionally available extracellular matrix (ECM). Consequently, cells on ECM regained a spindle-shape morphology, increased in proliferation rate by two-fold and showed decreased expression of cardiac markers at both the mRNA and protein levels. In conclusion, the outcome indicates that progression of MSC senescence may occur via myocardial differentiation during in vitro polystyrene culture, and this can be overcome by employing appropriate ECM culture techniques.
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Affiliation(s)
- Jae Hyung Kim
- Department of Medical Engineering, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Korea
| | - Sang-Hyun Shin
- Department of Medical Engineering, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Korea
| | - Tian Zhu Li
- Department of Medical Engineering, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Korea
| | - Hwal Suh
- Department of Medical Engineering, Yonsei University College of Medicine, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Korea
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Park CH, Bae SH, Kim HY, Kim JK, Jung ES, Chun HJ, Song MJ, Lee SE, Cho SG, Lee JW, Choi JY, Yoon SK, Han NI, Lee YS. A pilot study of autologous CD34-depleted bone marrow mononuclear cell transplantation via the hepatic artery in five patients with liver failure. Cytotherapy 2013; 15:1571-9. [PMID: 23849977 DOI: 10.1016/j.jcyt.2013.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/15/2013] [Accepted: 05/19/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND AIMS Many rodent experiments and human studies on stem cell therapy have shown promising therapeutic approaches to liver diseases. We investigated the clinical outcomes of five patients with liver failure of various causes who received autologous CD34-depleted bone marrow-derived mononuclear cell (BM-MNC) transplantation, including mesenchymal stromal cells, through the hepatic artery. METHODS CD34-depleted BM-MNCs were obtained from five patients waiting for liver transplantation by bone marrow aspiration and using the CliniMACS CD34 Reagent System (Miltenyi Biotech, Bergisch Gladbach, Germany), and autologous hepatic artery infusion was performed. The causes of hepatic decompensation were hepatitis B virus (HBV), hepatitis C virus (HCV), propylthiouracil-induced toxic hepatitis and Wilson disease. RESULTS Serum albumin levels improved 1 week after transplantation from 2.8 g/dL, 2.4 g/dL, 2.7 g/dL and 1.9 g/dL to 3.3 g/dL, 3.1 g/dL, 2.8 g/dL and 2.6 g/dL. Transient liver elastography data showed some change from 65 kPa, 33 kPa, 34.8 kPa and undetectable to 46.4 kPa, 19.8 kPa, 29.1 kPa and 67.8 kPa at 4 weeks after transplantation in a patient with Wilson disease, a patient with HCV, and two patients with HBV. Ascites decreased in two patients. One of the patients with HBV underwent liver transplantation 4 months after the infusion, and the hepatic progenitor markers (cytokeratin [CD]-7, CD-8, CD-9, CD-18, CD-19, c-Kit and epithelial cell adhesion molecule [EpCAM]) were highly expressed in the explanted liver. CONCLUSIONS Serum albumin levels, liver stiffness, liver volume, subjective healthiness and quality of life improved in the study patients. Although these findings were observed in a small population, the results may suggest a promising future for autologous CD34-depleted BM-MNC transplantation as a bridge to liver transplantation in patients with liver failure.
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Affiliation(s)
- Chung-Hwa Park
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Choi ST, Hwang S, Hong HN, Won YJ, Ahn CS, Ha TY, Song GW, Jung DH, Park GC, Lee SG. Therapeutic potentials occurring during the early differentiation process of mesenchymal stem cells in a rats model with thioacetamide-induced liver fibrosis. KOREAN JOURNAL OF HEPATO-BILIARY-PANCREATIC SURGERY 2013; 17:21-33. [PMID: 26155209 PMCID: PMC4304508 DOI: 10.14701/kjhbps.2013.17.1.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 02/10/2013] [Accepted: 02/15/2013] [Indexed: 11/17/2022]
Abstract
BACKGROUNDS/AIMS Mesenchymal stem cells (MSCs) have the capacity to differentiate into hepatocytes, The purpose of this study is to investigate the MSCs' differentiation process and therapeutic potentials by comparing isolated MSCs with HGF-treated MSCs in rat's model with thiacetamide (TAA)-induced cirrhosis. METHODS Male Sprague-Dawley (SD) rats, weighing 100-150 g were used in this study. To induce liver fibrosis, recipient rats were taken with 0.04% thioacetamide (TAA) in the drinking water (400 mg TAA/L) for 8 weeks. The rats underlying liver cirrhosis were divided into 3 groups according to the transplanted materials, compared to normal saline as control (I) and isolated MSCs (II) HGF-treated MSCs. RESULTS Severe hepatic fibrosis and hepatocyte destruction were detected in the control group. Less hepatic cirrhosis and collagen formation, more hepatocyte regeneration and glycogen storage were detected in isolated MSCs compared to HGF-treated MSCs group, Distribution of red autofluorescence is mainly localized near the sinusoids in isolated MSCs, scattered away the sinusoids in HGF-treated MSCs group. MSCs transdifferentiated into CK-19 postive Oval cells and then to albulmin-producing hepatocytes, HGF treated MSCs differentiated into hepatocyte without the intermediate oval cells phase. HGF treated MSCs became the CK18-positive, MSCs became CD 90-positive. CONCLUSIONS Significant hepatocyte differentiation occurred in not HGF-treated MSCs but isolated MSCs group unexpectedly. These results suggest that the beneficial effect of MSCs on in rat's model with TAA-induced cirrhosis may occur during early differentiation course of MSCs. Mature hepatocyte itself has a little effect on the accelerated differentiation and functional capacity of hepatic lineage cell-line.
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Affiliation(s)
- Sang-Tae Choi
- Department of Surgery, Gachon University Gil Hospital, Incheon, Korea
| | - Shin Hwang
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hea-Nam Hong
- Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea
| | - You-Jin Won
- Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea
| | - Chul-Soo Ahn
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae-Yong Ha
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gi-Won Song
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong-Hwan Jung
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gil-Chun Park
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Gyu Lee
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Zhang S, Chen L, Liu T, Zhang B, Xiang D, Wang Z, Wang Y. Human umbilical cord matrix stem cells efficiently rescue acute liver failure through paracrine effects rather than hepatic differentiation. Tissue Eng Part A 2012; 18:1352-64. [PMID: 22519429 DOI: 10.1089/ten.tea.2011.0516] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
There is increasing evidence that mesenchymal stem cells (MSCs) derived from different tissues could act as an alternative source of mature hepatocytes for treatment of acute liver failure (ALF). Human umbilical cord matrix stem cells (hUCMSCs) represent a novel source of MSCs. We examined the therapeutic potential and the different mechanisms of hUCMSCs by their transplantation into nonobese diabetic severe combined-immunodeficient (NOD-SCID) mice with carbon tetrachloride (CCl(4))-induced ALF in comparison to adult human hepatocytes (AHHs). The characteristics of isolated hUCMSCs were determined from MSCs and hepatocyte marker expression, hepatic function, and differentiation. Native hUCMSCs constitutively expressed some hepatic markers, though weaker hepatocyte-specific functions were observed when compared to AHHs. When native hUCMSCs or AHHs were transplanted into livers of NOD-SCID mice with ALF induced by CCl(4), both hUCMSCs and AHHs provided a significant survival benefit and prevented the release of liver injury biomarkers. hUCMSCs were found to engraft within the recipient liver and differentiated into functional hepatocytes, whereas the HepPar1-/albumin (ALB)-positive cells of the hUCMSC group were less than the AHH group in the recipient liver. Higher values of human ALB in the serum of mice-transplanted AHHs were determined in comparison with levels in mice-transplanted hUCMSCs. The analysis of mouse serum cytokine levels showed that hUCMSC transplantation was even more effective than treatment with AHHs and successfully downregulated the systemic inflammatory cytokines such as interleukin (IL)-1β, tumor necrosis factor (TNF)-α, IL-6, IL-10, and IL-1 receptor antagonist (IL-1RA). Furthermore, paracrine effects produced by hUCMSCs were identified by indirect coculture with damaged mouse hepatocytes (MHs) induced by CCl(4). Coculture with hUCMSCs significantly increased the viability, ALB secretion of damaged MHs, and greatly enhanced the regeneration of MHs in vitro when compared with AHHs. These data suggest that direct transplantation of native hUCMSCs can rescue ALF and repopulate livers of mice through paracrine effects to stimulate endogenous liver regeneration rather than hepatic differentiation for compensated liver function, which is the primary effect of AHHs. Thus, hUCMSCs can be a potential alternative source of AHHs for cell therapy of ALF and eliminate the shortage of hepatocytes.
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Affiliation(s)
- Shichang Zhang
- Institute of Infectious Diseases, Third Military Medical University, Southwest Hospital, Chongqing, China.
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14
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Liver tissue engineering: Recent advances in the development of a bio-artificial liver. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-012-0047-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Zhang GZ, Li CS, Zhang XL. Progress in research of differentiation of mesenchymal stem cells into functional hepatocytes. Shijie Huaren Xiaohua Zazhi 2012; 20:1216-1221. [DOI: 10.11569/wcjd.v20.i14.1216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are a group of stem cells deriving from mesodermal mesenchyme. They can be recovered from a variety of tissues, including bone marrow, umbilical cord tissue, umbilical cord blood, peripheral blood and adipose tissue. Under given conditions, MSCs can differentiate into bone, fat, nerve cells, hepatocytes and many other cells, and thus can be used as a new treatment to substitute for organ transplantation. In recent years, the incidence of end-stage liver disease has been increasing and it has become one of the major diseases affecting human health. Donor scarcity and immunological rejection limit the clinical application of liver transplantation. Numerous studies have confirmed the therapeutic effects of MSCs on hepatic fibrosis, cirrhosis and other liver diseases, which may be related to the differentiation of MSCs into functional hepatocytes. This paper reviews the capacity, regulation and molecular mechanism of MSC differentiation and discusses the therapeutic effects of different sources of stem cells for liver fibrosis.
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Ishikawa H, Jo JI, Tabata Y. Liver Anti-Fibrosis Therapy with Mesenchymal Stem Cells Secreting Hepatocyte Growth Factor. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:2259-72. [PMID: 22182291 DOI: 10.1163/156856211x614761] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The objective of this study is to investigate the anti-fibrotic effect of combined mesencymal stem cells (MSCs) and gene therapy on liver fibrosis. When transfected by the complex with a plasmid DNA of hepatocyte growth factor (HGF) and the spermine-introduced pullulan of gene carrier, MSCs secreted HGF protein over 1 week. The HGF secreted from transfected MSC had the biological activity to promote the albumin production of hepatocytes. After intravenous injection, the HGF-secreting MSCs (HGF-MSC) accumulated in the liver. The injection of HGF-MSC decreased the fibrosis area in a rat model of liver fibrosis to a significantly great extent compared with that of original MSC. In the in vitro experiment, the higher number of HGF-transfected MSCs was migrated by stromal cell-derived factor (SDF)-1α more strongly than the original MSC. Considering the promotion of SDF-1α secretion in the liver fibrosis, it is possible that, when transplanted, genetically-engineered MSCs are accumulated in the liver due to their higher response to SDF-1α. It is concluded that the intravenous injection of genetically-engineered MSCs is a promising therapy for liver fibrosis.
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Affiliation(s)
- Hidefumi Ishikawa
- a Department of Biomaterials , Institute for Frontier Medical Sciences, Kyoto University , 53 Kawara-cho Shogoin , Sakyo-ku , Kyoto , 606-8507 , Japan
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Tan Y, Xiao EH, Xiao LZ, Yuan YH, Ma C, Shang QL, Bian DJ, Li YH, Chen Z, Chang Q. VEGF(165) expressing bone marrow mesenchymal stem cells differentiate into hepatocytes under HGF and EGF induction in vitro. Cytotechnology 2012; 64:635-47. [PMID: 22476563 DOI: 10.1007/s10616-012-9439-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Accepted: 02/07/2012] [Indexed: 12/22/2022] Open
Abstract
A short half-life and low levels of growth factors in an injured microenvironment necessitates the sustainable delivery of growth factors and stem cells to augment the regeneration of injured tissues. Our aim was to investigate the ability of VEGF(165) expressing bone marrow mesenchymal stem cells (BMMSCs) to differentiate into hepatocytes when cultured with hepatocyte growth factor (HGF) and epidermal growth factor (EGF) in vitro. We isolated, cultured and identified rabbit BMMSCs, then electroporated the BMMSCs with VEGF(165)-pCMV6-AC-GFP plasmid. G418 was used to select transfected cells and the efficiency was up to 70%. The groups were then divided as follows: Group A was electroporated with pCMV6-AC-GFP plasmid + HGF + EGF and Group B was electroporated with VEGF(165)-pCMV6-AC-GFP plasmid +HGF + EGF. After 14 days, BMMSCs were induced into short spindle and polygonal cells. Alpha-fetoprotein (AFP) was positive and albumin (ALB) was negative in Group A, while both AFP and ALB were positive in group B on day 10. AFP and ALB in both groups were positive on day 20, but the quantity of AFP in group B decreased with prolonged time and was about 43.5% less than group A. The quantity of the ALB gene was increased with prolonged time in both groups. However, there was no significant difference between group A and B on day 10 and 20. Our results demonstrated that VEGF(165)-pCMV6-AC-GFP plasmid modified BMMSCs still had the ability to differentiate into hepatocytes. The VEGF(165) gene promoted BMMSCs to differentiate into hepatocyte-like cells under the induction of HGF and EGF, and reduced the differentiation time. These results have implications for cell therapies.
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Affiliation(s)
- Yan Tan
- Department of Radiology, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, China
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van den Akker NMS, Kolk FF, Jeukens F, Verbruggen S, Gagliardi M, Dullens S, Heschel I, Post MJ, Molin DGM, Waltenberger J. Vascular potency of Sus scrofa bone marrow-derived mesenchymal stem cells: a progenitor source of medial but not endothelial cells. Tissue Eng Part A 2012; 18:828-39. [PMID: 22011280 DOI: 10.1089/ten.tea.2011.0284] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Short-term thrombotic occlusion and compliance mismatch hamper clinical use of synthetic small-diameter tissue engineered vascular grafts. It is felt that preconditioning of the graft with intimal (endothelial) and medial (vascular smooth muscle) cells contributes to patency of the graft. Autologous, non-vessel-derived cells are preferred because of systemic vascular pathology and immunologic concerns. We tested in a porcine model whether cultured bone marrow-derived mononuclear cells, also referred to as mesenchymal stem cells (MSC), are a potential source of intimal or medial cells in vascular tissue engineering. We show that MSC cultured in endothelial medium do not gain an endothelial phenotype or functional characteristics, even after enrichment for CD31, culturing under flow, treatment with additional growth factors (vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF)-2), or co-culture with microvascular endothelial cells (EC). On the other hand, we show that MSC cultured in MSC medium, but not in smooth muscle cell medium, show phenotypical and functional characteristics of vascular smooth muscle cells. We conclude that bone marrow-derived MSCs can be used as a bona fide source of medial, but not EC in small-diameter vascular tissue engineering.
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Affiliation(s)
- Nynke M S van den Akker
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht University, Maastricht, The Netherlands
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Abstract
Hepatic encephalopathy is a serious complication of acute and chronic liver diseases and has a high mortality rate. The pathogenesis of hepatic encephalopathy remains unclear, and there is no means of prevention or effective cure for the disease. Therefore, there is an urgent need for the basic and clinical research of hepatic encephalopathy to elucidate its pathogenesis. The development of animal models is important for elucidating the pathogenesis of hepatic encephalopathy and providing new avenues for diagnosis and therapy of the disease. Among a variety of animal models, rat model is applied most widely for similarity to humans, repeatability, reliability, applicability, controllability, simplicity and economy. In this paper, we briefly review various rat models of hepatic encephalopathy that have different origins.
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