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Ko JH, Lee HJ, Yoon CH, Choi YR, Ryu JS, Oh JY. Activation of Toll-like receptor 2 promotes mesenchymal stem/stromal cell-mediated immunoregulation and angiostasis through AKR1C1. Theranostics 2024; 14:4713-4729. [PMID: 39239520 PMCID: PMC11373616 DOI: 10.7150/thno.100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Accepted: 07/25/2024] [Indexed: 09/07/2024] Open
Abstract
Background: Mesenchymal stem/stromal cells (MSCs) maintain tissue homeostasis in response to microenvironmental perturbations. Toll-like receptors (TLRs) are key sensors for exogenous and endogenous signals produced during injury. In this study, we aimed to investigate whether TLRs affect the homeostatic functions of MSCs after injury. Methods: We examined the expression of TLR2, TLR3 and TLR4 in MSCs, and analyzed the functional significance of TLR2 activation using single-cell RNA sequencing. Additionally, we investigated the effects and mechanisms of TLR2 and its downstream activation in MSCs on the MSCs themselves, on monocytes/macrophages, and in a mouse model of sterile injury-induced inflammatory corneal angiogenesis. Results: MSCs expressed TLR2, which was upregulated by monocytes/macrophages. Activation of TLR2 in MSCs promoted their immunoregulatory and angiostatic functions in monocytes/macrophages and in mice with inflammatory corneal angiogenesis, whereas TLR2 inhibition attenuated these functions. Single-cell RNA sequencing revealed AKR1C1, a gene encoding aldo-keto reductase family 1 member C1, as the most significantly inducible gene in MSCs upon TLR2 stimulation, though its stimulation did not affect cell compositions. AKR1C1 protected MSCs against ferroptosis, increased secretion of anti-inflammatory cytokines, and enhanced their ability to drive monocytes/macrophages towards immunoregulatory phenotypes, leading to the amelioration of inflammatory corneal neovascularization in mice. Conclusion: Our findings suggest that activation of TLR2-AKR1C1 signaling in MSCs serves as an important pathway for the survival and homeostatic activities of MSCs during injury.
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Affiliation(s)
- Jung Hwa Ko
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Hyun Ju Lee
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Chang Ho Yoon
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
- Department of Ophthalmology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Yoo Rim Choi
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Jin Suk Ryu
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Joo Youn Oh
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
- Department of Ophthalmology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
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Buyl K, Merimi M, Rodrigues RM, Rahmani S, Fayyad-Kazan M, Bouhtit F, Boukhatem N, Vanhaecke T, Fahmi H, De Kock J, Najar M. The Immunological Profile of Adipose Mesenchymal Stromal/Stem Cells after Cell Expansion and Inflammatory Priming. Biomolecules 2024; 14:852. [PMID: 39062566 PMCID: PMC11275169 DOI: 10.3390/biom14070852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/28/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND AT-MSCs display great immunoregulatory features, making them potential candidates for cell-based therapy. This study aimed to evaluate the "RBC lysis buffer" isolation protocol and immunological profiling of the so-obtained AT-MSCs. METHODS We established an immune-comparative screening of AT-MSCs throughout in vitro cell expansion (PM, P1, P2, P3, P4) and inflammatory priming regarding the expression of 28 cell-surface markers, 6 cytokines/chemokines, and 10 TLR patterns. FINDINGS AT-MSCs were highly expandable and sensitive to microenvironment challenges, hereby showing plasticity in distinct expression profiles. Both cell expansion and inflammation differentially modulated the expression profile of CD34, HLA-DR, CD40, CD62L, CD200 and CD155, CD252, CD54, CD58, CD106, CD274 and CD112. Inflammation resulted in a significant increase in the expression of the cytokines IL-6, IL-8, IL-1β, IL-1Ra, CCL5, and TNFα. Depending on the culture conditions, the expression of the TLR pattern was distinctively altered with TLR1-4, TLR7, and TLR10 being increased, whereas TLR6 was downregulated. Protein network and functional enrichment analysis showed that several trophic and immune responses are likely linked to these immunological changes. CONCLUSIONS AT-MSCs may sense and actively respond to tissue challenges by modulating distinct and specific pathways to create an appropriate immuno-reparative environment. These mechanisms need to be further characterized to identify and assess a molecular target that can enhance or impede the therapeutic ability of AT-MSCs, which therefore will help improve the quality, safety, and efficacy of the therapeutic strategy.
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Affiliation(s)
- Karolien Buyl
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - Makram Merimi
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco (F.B.); (N.B.)
| | - Robim M. Rodrigues
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - Saida Rahmani
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco (F.B.); (N.B.)
| | - Mohammad Fayyad-Kazan
- Department of Natural and Applied Sciences, College of Arts and Sciences, The American University of Iraq-Baghdad (AUIB), Baghdad 10001, Iraq
| | - Fatima Bouhtit
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco (F.B.); (N.B.)
- Hematology Department, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium
- Laboratoire d’Hématologie, CHU Mohammed VI, Faculté de Médecine et de Pharmacie d’Oujda, University Mohammed Premier, Oujda 60000, Morocco
| | - Noureddine Boukhatem
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco (F.B.); (N.B.)
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Joery De Kock
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - Mehdi Najar
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
- Faculty of Medicine, ULB721, Université Libre de Bruxelles, 1070 Brussels, Belgium
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3
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Bahman F, AlSaeed H, Albeloushi S, Al-Mulla F, Ahmad R, Al-Rashed F. The role of TLR2 in exercise-induced immunomodulation in normal weight individuals. Sci Rep 2023; 13:10703. [PMID: 37400578 DOI: 10.1038/s41598-023-37811-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023] Open
Abstract
Toll-like receptors (TLRs) have been targeted for therapeutic drug development for several disorders, including cardiovascular diseases (CVD), and diabetes mellitus. Daily levels physical activity (PA) has been purported to influence the systemic circulation of cytokines, affecting the overall activation of TLRs and influencing the inflammatory milieu. Objective and self-reported daily PA was tracked in 69 normal-weight adults. Freedson's cut-offs categorized daily PA intensity into the 25th lowest, medium, and top percentiles. Monocytic TLR2 expression was quantified by flow cytometry in fresh whole blood. Cross-sectional associations between flow cytometry measured TLR2+ subsets and clinical biomarkers were evaluated. PA increased circulation of TLR2+ monocytes. TLR2 expression was adversely corelated with reduced diastolic blood pressure (DBP), triglyceride (TG), and matrix metallopeptidase 9 (MMP9) levels. However, regression analysis indicated that only TG levels were independently linked with TLR2+ subsets in circulation in active participants. Higher daily levels of physical activity are associated with improved cardiovascular blood markers and elevated circulatory monocytic TLR2+ subsets. These findings suggest that TLR2 may play a role in modulating CVD risk factors in individuals leading physically active lifestyles.
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Affiliation(s)
- Fatemah Bahman
- Immunology and Microbiology Department, Dasman Diabetes Institute, Al-Soor Street, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Halemah AlSaeed
- Immunology and Microbiology Department, Dasman Diabetes Institute, Al-Soor Street, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Shaima Albeloushi
- Immunology and Microbiology Department, Dasman Diabetes Institute, Al-Soor Street, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, 15462, Dasman, Kuwait
| | - Rasheed Ahmad
- Immunology and Microbiology Department, Dasman Diabetes Institute, Al-Soor Street, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Fatema Al-Rashed
- Immunology and Microbiology Department, Dasman Diabetes Institute, Al-Soor Street, P.O. Box 1180, 15462, Dasman, Kuwait.
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4
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Mabotuwana NS, Rech L, Lim J, Hardy SA, Murtha LA, Rainer PP, Boyle AJ. Paracrine Factors Released by Stem Cells of Mesenchymal Origin and their Effects in Cardiovascular Disease: A Systematic Review of Pre-clinical Studies. Stem Cell Rev Rep 2022; 18:2606-2628. [PMID: 35896860 PMCID: PMC9622561 DOI: 10.1007/s12015-022-10429-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/12/2022] [Indexed: 11/30/2022]
Abstract
Mesenchymal stem cell (MSC) therapy has gained significant traction in the context of cardiovascular repair, and have been proposed to exert their regenerative effects via the secretion of paracrine factors. In this systematic review, we examined the literature and consolidated available evidence for the "paracrine hypothesis". Two Ovid SP databases were searched using a strategy encompassing paracrine mediated MSC therapy in the context of ischemic heart disease. This yielded 86 articles which met the selection criteria for inclusion in this study. We found that the MSCs utilized in these articles were primarily derived from bone marrow, cardiac tissue, and adipose tissue. We identified 234 individual protective factors across these studies, including VEGF, HGF, and FGF2; which are proposed to exert their effects in a paracrine manner. The data collated in this systematic review identifies secreted paracrine factors that could decrease apoptosis, and increase angiogenesis, cell proliferation, and cell viability. These included studies have also demonstrated that the administration of MSCs and indirectly, their secreted factors can reduce infarct size, and improve left ventricular ejection fraction, contractility, compliance, and vessel density. Furthering our understanding of the way these factors mediate repair could lead to the identification of therapeutic targets for cardiac regeneration.
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Affiliation(s)
- Nishani S Mabotuwana
- College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia
- Hunter Medical Research Institute, Lot 1, Kookaburra Circuit, Newcastle, NSW, 2305, Australia
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, Graz, Austria
| | - Lavinia Rech
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, Graz, Austria
- Department of Cardiac Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Joyce Lim
- College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia
- Hunter Medical Research Institute, Lot 1, Kookaburra Circuit, Newcastle, NSW, 2305, Australia
- Department of Cardiovascular Medicine, John Hunter Hospital, Newcastle, NSW, Australia
| | - Sean A Hardy
- College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia
- Hunter Medical Research Institute, Lot 1, Kookaburra Circuit, Newcastle, NSW, 2305, Australia
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, Graz, Austria
| | - Lucy A Murtha
- College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia
- Hunter Medical Research Institute, Lot 1, Kookaburra Circuit, Newcastle, NSW, 2305, Australia
| | - Peter P Rainer
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Andrew J Boyle
- College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia.
- Hunter Medical Research Institute, Lot 1, Kookaburra Circuit, Newcastle, NSW, 2305, Australia.
- Department of Cardiovascular Medicine, John Hunter Hospital, Newcastle, NSW, Australia.
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5
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Satani N, Parsha K, Davis C, Gee A, Olson SD, Aronowski J, Savitz SI. Peripheral blood monocytes as a therapeutic target for marrow stromal cells in stroke patients. Front Neurol 2022; 13:958579. [PMID: 36277912 PMCID: PMC9580494 DOI: 10.3389/fneur.2022.958579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/05/2022] [Indexed: 11/22/2022] Open
Abstract
Background Systemic administration of marrow stromal cells (MSCs) leads to the release of a broad range of factors mediating recovery in rodent stroke models. The release of these factors could depend on the various cell types within the peripheral blood as they contact systemically administered MSCs. In this study, we assessed the immunomodulatory interactions of MSCs with peripheral blood derived monocytes (Mϕ) collected from acute stroke patients. Methods Peripheral blood from stroke patients was collected at 5–7 days (N = 5) after symptom onset and from age-matched healthy controls (N = 5) using mononuclear cell preparation (CPT) tubes. After processing, plasma and other cellular fractions were removed, and Mϕ were isolated from the mononuclear fraction using CD14 microbeads. Mϕ were then either cultured alone or co-cultured with MSCs in a trans-well cell-culture system. Secretomes were analyzed after 24 h of co-cultures using a MAGPIX reader. Results Our results show that there is a higher release of IFN-γ and IL-10 from monocytes isolated from peripheral blood at day 5–7 after stroke compared with monocytes from healthy controls. In trans-well co-cultures of MSCs and monocytes isolated from stroke patients, we found statistically significant increased levels of IL-4 and MCP-1, and decreased levels of IL-6, IL-1β, and TNF-α. Addition of MSCs to monocytes increased the secretions of Fractalkine, IL-6, and MCP-1, while the secretions of TNF-α decreased, as compared to the secretions from monocytes alone. When MSCs were added to monocytes from stroke patients, they decreased the levels of IL-1β, and increased the levels of IL-10 significantly more as compared to when they were added to monocytes from control patients. Conclusion The systemic circulation of stroke patients may differentially interact with MSCs to release soluble factors integral to their paracrine mechanisms of benefit. Our study finds that the effect of MSCs on Mϕ is different on those derived from stroke patients blood as compared to healthy controls. These findings suggest immunomodulation of peripheral immune cells as a therapeutic target for MSCs in patients with acute stroke.
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Affiliation(s)
- Nikunj Satani
- Department of Neurology, McGovern Medical School, Institute for Stroke and Cerebrovascular Diseases, The University of Texas Health Science Center at Houston, Houston, TX, United States
- *Correspondence: Nikunj Satani
| | - Kaushik Parsha
- Department of Neurology, McGovern Medical School, Institute for Stroke and Cerebrovascular Diseases, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Courtney Davis
- Department of Neurology, McGovern Medical School, Institute for Stroke and Cerebrovascular Diseases, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Adrian Gee
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, United States
| | - Scott D. Olson
- Department of Pediatric Surgery, McGovern Medical School at UTHealth, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Jaroslaw Aronowski
- Department of Neurology, McGovern Medical School, Institute for Stroke and Cerebrovascular Diseases, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Sean I. Savitz
- Department of Neurology, McGovern Medical School, Institute for Stroke and Cerebrovascular Diseases, The University of Texas Health Science Center at Houston, Houston, TX, United States
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6
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Transcriptional Profile of Cytokines, Regulatory Mediators and TLR in Mesenchymal Stromal Cells after Inflammatory Signaling and Cell-Passaging. Int J Mol Sci 2021; 22:ijms22147309. [PMID: 34298927 PMCID: PMC8306573 DOI: 10.3390/ijms22147309] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
Adult human subcutaneous adipose tissue (AT) harbors a rich population of mesenchymal stromal cells (MSCs) that are of interest for tissue repair. For this purpose, it is of utmost importance to determine the response of AT-MSCs to proliferative and inflammatory signals within the damaged tissue. We have characterized the transcriptional profile of cytokines, regulatory mediators and Toll-like receptors (TLR) relevant to the response of MSCs. AT-MSCs constitutively present a distinct profile for each gene and differentially responded to inflammation and cell-passaging. Inflammation leads to an upregulation of IL-6, IL-8, IL-1β, TNFα and CCL5 cytokine expression. Inflammation and cell-passaging increased the expression of HGF, IDO1, PTGS1, PTGS2 and TGFβ. The expression of the TLR pattern was differentially modulated with TLR 1, 2, 3, 4, 9 and 10 being increased, whereas TLR 5 and 6 downregulated. Functional enrichment analysis demonstrated a complex interplay between cytokines, TLR and regulatory mediators central for tissue repair. This profiling highlights that following a combination of inflammatory and proliferative signals, the sensitivity and responsive capacity of AT-MSCs may be significantly modified. Understanding these transcriptional changes may help the development of novel therapeutic approaches.
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7
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Markezana A, Goldberg SN, Kumar G, Zorde-Khvalevsky E, Gourevtich S, Rozenblum N, Galun E, Ahmed M. Incomplete thermal ablation of tumors promotes increased tumorigenesis. Int J Hyperthermia 2021; 38:263-272. [PMID: 33612046 DOI: 10.1080/02656736.2021.1887942] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
PURPOSE While systemic tumor-stimulating effects can occur following ablation of normal liver linked to the IL-6/HGF/VEGF cytokinetic pathway, the potential for tumor cells themselves to produce these unwanted effects is currently unknown. Here, we study whether partially treated tumors induce increased tumor growth post-radiofrequency thermal ablation (RFA). METHODS Tumor growth was measured in three immunocompetent, syngeneic tumor models following partial RFA of the target tumor (in subcutaneous CT26 and MC38 mouse colorectal adenocarcinoma, N = 14 each); and in a distant untreated tumor following partial RFA of target subcutaneous R3230 rat breast adenocarcinoma (N = 12). Tumor cell proliferation (ki-67) and microvascular density (CD34) was assessed. In R3230 tumors, in vivo mechanism of action was assessed following partial RFA by measuring IL-6, HGF, and VEGF expression (ELISA) and c-Met protein (Western blot). Finally, RFA was performed in R3230 tumors with adjuvant c-Met kinase inhibitor or VEGF receptor inhibitor (at 3 days post-RFA, N = 3/arm, total N = 12). RESULTS RFA stimulated tumor growth in vivo in residual, incompletely treated surrounding CT26 and MC38 tumor at 3-6 days (p < 0.01). In R3230, RFA increased tumor growth in distant tumor 7 days post treatment compared to controls (p < 0.001). For all models, Ki-67 and CD34 were elevated (p < 0.01, all comparisons). IL-6, HGF, and VEGF were also upregulated post incomplete tumor RFA (p < 0.01). These markers were suppressed to baseline levels with adjuvant c-MET kinase or VEGF receptor inhibition. CONCLUSION Incomplete RFA of a target tumor can sufficiently stimulate residual tumor cells to induce accelerated growth of distant tumors via the IL-6/c-Met/HGF pathway and VEGF production.
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Affiliation(s)
- Aurelia Markezana
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - S Nahum Goldberg
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel.,Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.,Division of Image-guided Therapy and Interventional Oncology, Department of Radiology, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Gaurav Kumar
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Elina Zorde-Khvalevsky
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Svetlana Gourevtich
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Nir Rozenblum
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Eithan Galun
- Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Muneeb Ahmed
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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Wang X, Han Z, Yu Y, Xu Z, Cai B, Yuan Y. Potential Applications of Induced Pluripotent Stem Cells for Cardiovascular Diseases. Curr Drug Targets 2018; 20:763-774. [PMID: 30539693 DOI: 10.2174/1389450120666181211164147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/05/2018] [Accepted: 12/05/2018] [Indexed: 12/13/2022]
Abstract
Owning the high incidence and disability rate in the past decades, to be expected, cardiovascular diseases (CVDs) have become one of the leading death causes worldwide. Currently, induced pluripotent stem cells (iPSCs), with the potential to form fresh myocardium and improve the functions of damaged hearts, have been studied widely in experimental CVD therapy. Moreover, iPSC-derived cardiomyocytes (CMs), as novel disease models, play a significant role in drug screening, drug safety assessment, along with the exploration of pathological mechanisms of diseases. Furthermore, a lot of studies have been carried out to clarify the biological basis of iPSCs and its derived cells in the treatment of CVDs. Their molecular mechanisms were associated with release of paracrine factors, regulation of miRNAs, mechanical support of new tissues, activation of specific pathways and specific enzymes, etc. In addition, a few small chemical molecules and suitable biological scaffolds play positive roles in enhancing the efficiency of iPSC transplantation. This article reviews the development and limitations of iPSCs in CVD therapy, and summarizes the latest research achievements regarding the application of iPSCs in CVDs.
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Affiliation(s)
- Xiaotong Wang
- Department of Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Zhenbo Han
- Department of Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Ying Yu
- Department of Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Zihang Xu
- Department of Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Benzhi Cai
- Department of Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Ye Yuan
- Department of Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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9
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Puddighinu G, D'Amario D, Foglio E, Manchi M, Siracusano A, Pontemezzo E, Cordella M, Facchiano F, Pellegrini L, Mangoni A, Tafani M, Crea F, Germani A, Russo MA, Limana F. Molecular mechanisms of cardioprotective effects mediated by transplanted cardiac ckit + cells through the activation of an inflammatory hypoxia-dependent reparative response. Oncotarget 2017; 9:937-957. [PMID: 29416668 PMCID: PMC5787525 DOI: 10.18632/oncotarget.22946] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 11/12/2017] [Indexed: 12/16/2022] Open
Abstract
The regenerative effects of cardiac ckit+ stem cells (ckit+CSCs) in acute myocardial infarction (MI) have been studied extensively, but how these cells exert a protective effect on cardiomyocytes is not well known. Growing evidences suggest that in adult stem cells injury triggers inflammatory signaling pathways which control tissue repair and regeneration. Aim of the present study was to determine the mechanisms underlying the cardioprotective effects of ckit+CSCs following transplantation in a murine model of MI. Following isolation and in vitro expansion, cardiac ckit+CSCs were subjected to normoxic and hypoxic conditions and assessed at different time points. These cells adapted to hypoxia as showed by the activation of HIF-1α and the expression of a number of genes, such as VEGF, GLUT1, EPO, HKII and, importantly, of alarmin receptors, such as RAGE, P2X7R, TLR2 and TLR4. Activation of these receptors determined an NFkB-dependent inflammatory and reparative gene response (IRR). Importantly, hypoxic ckit+CSCs increased the secretion of the survival growth factors IGF-1 and HGF. To verify whether activation of the IRR in a hypoxic microenvironment could exert a beneficial effect in vivo, autologous ckit+CSCs were transplanted into mouse heart following MI. Interestingly, transplantation of ckit+CSCs lowered apoptotic rates and induced autophagy in the peri-infarct area; further, it reduced hypertrophy and fibrosis and, most importantly, improved cardiac function. ckit+CSCs are able to adapt to a hypoxic environment and activate an inflammatory and reparative response that could account, at least in part, for a protective effect on stressed cardiomyocytes following transplantation in the infarcted heart.
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Affiliation(s)
- Giovanni Puddighinu
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Domenico D'Amario
- Department of Cardiovascular Sciences, Catholic University of The Sacred Heart, Rome, Italy
| | - Eleonora Foglio
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Melissa Manchi
- Department of Cardiovascular Sciences, Catholic University of The Sacred Heart, Rome, Italy
| | - Andrea Siracusano
- Department of Cardiovascular Sciences, Catholic University of The Sacred Heart, Rome, Italy
| | - Elena Pontemezzo
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Martina Cordella
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Francesco Facchiano
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Laura Pellegrini
- Department of Neurorehabilitation Sciences, Casa Cura Policlinico (CCP), Milan, Italy
| | - Antonella Mangoni
- Department of Pathological Anatomy, Catholic University of The Sacred Heart, Rome, Italy
| | - Marco Tafani
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Filippo Crea
- Department of Cardiovascular Sciences, Catholic University of The Sacred Heart, Rome, Italy
| | - Antonia Germani
- Laboratory of Vascular Pathology, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Fondazione Luigi Maria Monti, Rome, Italy
| | - Matteo Antonio Russo
- IRCCS San Raffaele Pisana, Rome, Italy.,MEBIC Consortium, San Raffaele Roma Open University, Rome, Italy
| | - Federica Limana
- IRCCS San Raffaele Pisana, Rome, Italy.,San Raffaele Roma Open University, Rome, Italy
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Deng S, Yu K, Jiang W, Li Y, Wang S, Deng Z, Yao Y, Zhang B, Liu G, Liu Y, Lian Z. Over-expression of Toll-like receptor 2 up-regulates heme oxygenase-1 expression and decreases oxidative injury in dairy goats. J Anim Sci Biotechnol 2017; 8:3. [PMID: 28078083 PMCID: PMC5223356 DOI: 10.1186/s40104-016-0136-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 12/12/2016] [Indexed: 12/14/2022] Open
Abstract
Background Mastitis, an infection caused by Gram-positive bacteria, produces udder inflammation and oxidative injury in milk-producing mammals. Toll-like receptor 2 (TLR2) is important for host recognition of invading Gram-positive microbes. Over-expression of TLR2 in transgenic dairy goats is a useful model for studying various aspects of infection with Gram-positive bacteria, in vivo. Methods We over-expressed TLR2 in transgenic dairy goats. Pam3CSK4, a component of Gram-positive bacteria, triggered the TLR2 signal pathway by stimulating the monocytes-macrophages from the TLR2-positive transgenic goats, and induced over-expression of activator protein-1 (AP-1), phosphatidylinositol 3-kinase (PI3K) and transcription factor nuclear factor kappa B (NF-κB) and inflammation factors downstream of the signal pathway. Results Compared with wild-type controls, measurements of various oxidative stress-related molecules showed that TLR2, when over-expressed in transgenic goat monocytes-macrophages, resulted in weak lipid damage, high level expression of anti-oxidative stress proteins, and significantly increased mRNA levels of transcription factor NF-E2-related factor-2 (Nrf2) and the downstream gene, heme oxygenase-1 (HO-1). When Pam3CSK4 was used to stimulate ear tissue in vivo the HO-1 protein of the transgenic goats had a relatively high expression level. Conclusions The results indicate that the oxidative injury in goats over-expressing TLR2 was reduced following Pam3CSK4 stimulation. The underlying mechanism for this reduction was increased expression of the anti-oxidation gene HO-1 by activation of the Nrf2 signal pathway.
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Affiliation(s)
- Shoulong Deng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Kun Yu
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China.,National key Lab of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People's Republic of China
| | - Wuqi Jiang
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China
| | - Yan Li
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China
| | - Shuotian Wang
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China
| | - Zhuo Deng
- Department of Animal Science, Oklahoma State University, Stillwater, OK 74078 USA
| | - Yuchang Yao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030 People's Republic of China
| | - Baolu Zhang
- State Oceanic Administration, Beijing, 100860 People's Republic of China
| | - Guoshi Liu
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China
| | - Yixun Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Zhengxing Lian
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People's Republic of China.,National key Lab of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193 People's Republic of China
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Shirjang S, Mansoori B, Solali S, Hagh MF, Shamsasenjan K. Toll-like receptors as a key regulator of mesenchymal stem cell function: An up-to-date review. Cell Immunol 2016; 315:1-10. [PMID: 28284487 DOI: 10.1016/j.cellimm.2016.12.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 12/07/2016] [Accepted: 12/24/2016] [Indexed: 02/07/2023]
Abstract
Understanding the role of toll-like receptors (TLRs) in the immunomodulation potential, differentiation, migration, and survival of mesenchymal stem cells (MSCs) is absolutely vital to fully exploiting their MSC-based therapeutic potential. Furthermore, through recognition of exogenous or endogenous ligands produced upon injury, TLRs have been linked to allograft rejection and maintenance of chronic inflammatory diseases, including Crohn's disease, rheumatoid arthritis. Characterizing the effect of TLRs in biological control of MSCs fate and function could improve our knowledge about the MSC-based cell therapy and immunotherapy. In this paper, we outline the impacts of TLR activation and mechanisms on MSCs immunomodulatory functions, differentiation, migration, and survivability. Moreover, we indicate that the expression patterns of TLRs in MSCs from different sources.
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Affiliation(s)
- Solmaz Shirjang
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Solali
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Karim Shamsasenjan
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Golpanian S, Wolf A, Hatzistergos KE, Hare JM. Rebuilding the Damaged Heart: Mesenchymal Stem Cells, Cell-Based Therapy, and Engineered Heart Tissue. Physiol Rev 2016; 96:1127-68. [PMID: 27335447 PMCID: PMC6345247 DOI: 10.1152/physrev.00019.2015] [Citation(s) in RCA: 221] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are broadly distributed cells that retain postnatal capacity for self-renewal and multilineage differentiation. MSCs evade immune detection, secrete an array of anti-inflammatory and anti-fibrotic mediators, and very importantly activate resident precursors. These properties form the basis for the strategy of clinical application of cell-based therapeutics for inflammatory and fibrotic conditions. In cardiovascular medicine, administration of autologous or allogeneic MSCs in patients with ischemic and nonischemic cardiomyopathy holds significant promise. Numerous preclinical studies of ischemic and nonischemic cardiomyopathy employing MSC-based therapy have demonstrated that the properties of reducing fibrosis, stimulating angiogenesis, and cardiomyogenesis have led to improvements in the structure and function of remodeled ventricles. Further attempts have been made to augment MSCs' effects through genetic modification and cell preconditioning. Progression of MSC therapy to early clinical trials has supported their role in improving cardiac structure and function, functional capacity, and patient quality of life. Emerging data have supported larger clinical trials that have been either completed or are currently underway. Mechanistically, MSC therapy is thought to benefit the heart by stimulating innate anti-fibrotic and regenerative responses. The mechanisms of action involve paracrine signaling, cell-cell interactions, and fusion with resident cells. Trans-differentiation of MSCs to bona fide cardiomyocytes and coronary vessels is also thought to occur, although at a nonphysiological level. Recently, MSC-based tissue engineering for cardiovascular disease has been examined with quite encouraging results. This review discusses MSCs from their basic biological characteristics to their role as a promising therapeutic strategy for clinical cardiovascular disease.
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Affiliation(s)
- Samuel Golpanian
- Interdisciplinary Stem Cell Institute, Department of Medicine, and Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Ariel Wolf
- Interdisciplinary Stem Cell Institute, Department of Medicine, and Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Konstantinos E Hatzistergos
- Interdisciplinary Stem Cell Institute, Department of Medicine, and Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Joshua M Hare
- Interdisciplinary Stem Cell Institute, Department of Medicine, and Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
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Ahmed M, Kumar G, Moussa M, Wang Y, Rozenblum N, Galun E, Goldberg SN. Hepatic Radiofrequency Ablation-induced Stimulation of Distant Tumor Growth Is Suppressed by c-Met Inhibition. Radiology 2016; 279:103-17. [PMID: 26418615 PMCID: PMC4819900 DOI: 10.1148/radiol.2015150080] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE To elucidate how hepatic radiofrequency (RF) ablation affects distant extrahepatic tumor growth by means of two key molecular pathways. MATERIALS AND METHODS Rats were used in this institutional animal care and use committee-approved study. First, the effect of hepatic RF ablation on distant subcutaneous in situ R3230 and MATBIII breast tumors was evaluated. Animals were randomly assigned to standardized RF ablation, sham procedure, or no treatment. Tumor growth rate was measured for 3½ to 7 days. Then, tissue was harvested for Ki-67 proliferative indexes and CD34 microvascular density. Second, hepatic RF ablation was performed for hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), and c-Met receptor expression measurement in periablational rim, serum, and distant tumor 24 hours to 7 days after ablation. Third, hepatic RF ablation was combined with either a c-Met inhibitor (PHA-665752) or VEGF receptor inhibitor (semaxanib) and compared with sham or drug alone arms to assess distant tumor growth and growth factor levels. Finally, hepatic RF ablation was performed in rats with c-Met-negative R3230 tumors for comparison with the native c-Met-positive line. Tumor size and immunohistochemical quantification at day 0 and at sacrifice were compared with analysis of variance and the two-tailed Student t test. Tumor growth curves before and after treatment were analyzed with linear regression analysis to determine mean slopes of pre- and posttreatment growth curves on a per-tumor basis and were compared with analysis of variance and paired two-tailed t tests. RESULTS After RF ablation of normal liver, distant R3230 tumors were substantially larger at 7 days compared with tumors treated with the sham procedure and untreated tumors, with higher growth rates and tumor cell proliferation. Similar findings were observed in MATBIII tumors. Hepatic RF ablation predominantly increased periablational and serum HGF and downstream distant tumor VEGF levels. Compared with RF ablation alone, RF ablation combined with adjuvant PHA-665752 or semaxanib reduced distant tumor growth, proliferation, and microvascular density. For c-Met-negative tumors, hepatic RF ablation did not increase distant tumor growth, proliferation, or microvascular density compared with sham treatment. CONCLUSION RF ablation of normal liver can stimulate distant subcutaneous tumor growth mediated by HGF/c-Met pathway and VEGF activation. This effect was not observed in c-Met-negative tumors and can be blocked with adjuvant c-Met and VEGF inhibitors.
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Affiliation(s)
- Muneeb Ahmed
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Gaurav Kumar
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Marwan Moussa
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Yuanguo Wang
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Nir Rozenblum
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Eithan Galun
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - S. Nahum Goldberg
- From the Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd, WCC 308-B, Boston, MA 02215 (M.A., G.K., M.M., Y.W., S.N.G.); and Goldyne Savad Institute of Gene Therapy (N.R., E.G.) and Division of Image-guided Therapy and Interventional Oncology, Department of Radiology (S.N.G.), Hadassah Hebrew University Hospital, Jerusalem, Israel
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Control of Cross Talk between Angiogenesis and Inflammation by Mesenchymal Stem Cells for the Treatment of Ocular Surface Diseases. Stem Cells Int 2016; 2016:7961816. [PMID: 27110252 PMCID: PMC4823508 DOI: 10.1155/2016/7961816] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 02/29/2016] [Indexed: 12/13/2022] Open
Abstract
Angiogenesis is beneficial in the treatment of ischemic heart disease and peripheral artery disease. However, it facilitates inflammatory cell filtration and inflammation cascade that disrupt the immune and angiogenesis privilege of the avascular cornea, resulting in ocular surface diseases and even vision loss. Although great progress has been achieved, healing of severe ocular surface injury and immunosuppression of corneal transplantation are the most difficult and challenging step in the treatment of ocular surface disorders. Mesenchymal stem cells (MSCs), derived from various adult tissues, are able to differentiate into different cell types such as endothelial cells and fat cells. Although it is still under debate whether MSCs could give rise to functional corneal cells, recent results from different study groups showed that MSCs could improve corneal disease recovery through suppression of inflammation and modulation of immune cells. Thus, MSCs could become a promising tool for ocular surface disorders. In this review, we discussed how angiogenesis and inflammation are orchestrated in the pathogenesis of ocular surface disease. We overviewed and updated the knowledge of MSCs and then summarized the therapeutic potential of MSCs via control of angiogenesis, inflammation, and immune response in the treatment of ocular surface disease.
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Harnessing the secretome of cardiac stem cells as therapy for ischemic heart disease. Biochem Pharmacol 2016; 113:1-11. [PMID: 26903387 DOI: 10.1016/j.bcp.2016.02.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 02/18/2016] [Indexed: 12/22/2022]
Abstract
Adult stem cells continue to promise opportunities to repair damaged cardiac tissue. However, precisely how adult stem cells accomplish cardiac repair, especially after ischemic damage, remains controversial. It has been postulated that the clinical benefit of adult stem cells for cardiovascular disease results from the release of cytokines and growth factors by the transplanted cells. Studies in animal models of myocardial infarction have reported that such paracrine factors released from transplanted adult stem cells contribute to improved cardiac function by several processes. These include promoting neovascularization of damaged tissue, reducing inflammation, reducing fibrosis and scar formation, as well as protecting cardiomyocytes from apoptosis. In addition, these factors might also stimulate endogenous repair by activating cardiac stem cells. Interestingly, stem cells discovered to be resident in the heart appear to be functionally superior to extra-cardiac adult stem cells when transplanted for cardiac repair and regeneration. In this review, we discuss the therapeutic potential of cardiac stem cells and how the proteins secreted from these cells might be harnessed to promote repair and regeneration of damaged cardiac tissue. We also highlight how recent controversies about the efficacy of adult stem cells in clinical trials of ischemic heart disease have not dampened enthusiasm for the application of cardiac stem cells and their paracrine factors for cardiac repair: the latter have proved superior to the mesenchymal stem cells used in most clinical trials in the past, some of which appear to have been conducted with sub-optimal rigor.
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Mesenchymal Stromal Cell-Derived Factors Promote Tissue Repair in a Small-for-Size Ischemic Liver Model but Do Not Protect against Early Effects of Ischemia and Reperfusion Injury. J Immunol Res 2015; 2015:202975. [PMID: 26380314 PMCID: PMC4561317 DOI: 10.1155/2015/202975] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 05/27/2015] [Indexed: 12/21/2022] Open
Abstract
Loss of liver mass and ischemia/reperfusion injury (IRI) are major contributors to postresectional liver failure and small-for-size syndrome. Mesenchymal stromal cell- (MSC-) secreted factors are described to stimulate regeneration after partial hepatectomy. This study investigates if liver-derived MSC-secreted factors also promote liver regeneration after resection in the presence of IRI.
C57BL/6 mice underwent IRI of 70% of their liver mass, alone or combined with 50% partial hepatectomy (PH). Mice were treated with MSC-conditioned medium (MSC-CM) or unconditioned medium (UM) and sacrificed after 6 or 24 hours (IRI group) or after 48 hours (IRI + PH group). Blood and liver tissue were analyzed for tissue injury, hepatocyte proliferation, and gene expression. In the IRI alone model, serum ALT and AST levels, hepatic tissue damage, and inflammatory cytokine gene expression showed no significant differences between both treatment groups. In the IRI + PH model, significant reduction in hepatic tissue damage as well as a significant increase in hepatocyte proliferation was observed after MSC-CM treatment. Conclusion. Mesenchymal stromal cell-derived factors promote tissue regeneration of small-for-size livers exposed to ischemic conditions but do not protect against early ischemia and reperfusion injury itself. MSC-derived factors therefore represent a promising treatment strategy for small-for-size syndrome and postresectional liver failure.
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Ahmed M, Kumar G, Navarro G, Wang Y, Gourevitch S, Moussa MH, Rozenblum N, Levchenko T, Galun E, Torchilin VP, Goldberg SN. Systemic siRNA Nanoparticle-Based Drugs Combined with Radiofrequency Ablation for Cancer Therapy. PLoS One 2015; 10:e0128910. [PMID: 26154425 PMCID: PMC4495977 DOI: 10.1371/journal.pone.0128910] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 05/01/2015] [Indexed: 01/10/2023] Open
Abstract
PURPOSE Radiofrequency thermal ablation (RFA) of hepatic and renal tumors can be accompanied by non-desired tumorigenesis in residual, untreated tumor. Here, we studied the use of micelle-encapsulated siRNA to suppress IL-6-mediated local and systemic secondary effects of RFA. METHODS We compared standardized hepatic or renal RFA (laparotomy, 1 cm active tip at 70 ± 2 °C for 5 min) and sham procedures without and with administration of 150 nm micelle-like nanoparticle (MNP) anti-IL6 siRNA (DOPE-PEI conjugates, single IP dose 15 min post-RFA, C57Bl mouse:3.5 ug/100ml, Fisher 344 rat: 20 ug/200 ul), RFA/scrambled siRNA, and RFA/empty MNPs. Outcome measures included: local periablational cellular infiltration (α-SMA+ stellate cells), regional hepatocyte proliferation, serum/tissue IL-6 and VEGF levels at 6-72 hr, and distant tumor growth, tumor proliferation (Ki-67) and microvascular density (MVD, CD34) in subcutaneous R3230 and MATBIII breast adenocarcinoma models at 7 days. RESULTS For liver RFA, adjuvant MNP anti-IL6 siRNA reduced RFA-induced increases in tissue IL-6 levels, α-SMA+ stellate cell infiltration, and regional hepatocyte proliferation to baseline (p < 0.04, all comparisons). Moreover, adjuvant MNP anti-IL6- siRNA suppressed increased distant tumor growth and Ki-67 observed in R3230 and MATBIII tumors post hepatic RFA (p<0.01). Anti-IL6 siRNA also reduced RFA-induced elevation in VEGF and tumor MVD (p < 0.01). Likewise, renal RFA-induced increases in serum IL-6 levels and distant R3230 tumor growth was suppressed with anti-IL6 siRNA (p < 0.01). CONCLUSIONS Adjuvant nanoparticle-encapsulated siRNA against IL-6 can be used to modulate local and regional effects of hepatic RFA to block potential unwanted pro-oncogenic effects of hepatic or renal RFA on distant tumor.
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Affiliation(s)
- Muneeb Ahmed
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd.–WCC-308B, Boston, Massachusetts, 02215, United States of America
- * E-mail:
| | - Gaurav Kumar
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd.–WCC-308B, Boston, Massachusetts, 02215, United States of America
| | - Gemma Navarro
- Department of Pharmaceutical Sciences and Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, 140 The Fenway, Boston, Massachusetts, 02115, United States of America
| | - Yuanguo Wang
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd.–WCC-308B, Boston, Massachusetts, 02215, United States of America
| | - Svetlana Gourevitch
- The Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Medical Center, Kiryat Hadassah POB 12000, Jerusalem, 91120, Israel
| | - Marwan H. Moussa
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd.–WCC-308B, Boston, Massachusetts, 02215, United States of America
| | - Nir Rozenblum
- The Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Medical Center, Kiryat Hadassah POB 12000, Jerusalem, 91120, Israel
| | - Tatyana Levchenko
- Department of Pharmaceutical Sciences and Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, 140 The Fenway, Boston, Massachusetts, 02115, United States of America
| | - Eithan Galun
- The Goldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Medical Center, Kiryat Hadassah POB 12000, Jerusalem, 91120, Israel
| | - Vladimir P. Torchilin
- Department of Pharmaceutical Sciences and Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, 140 The Fenway, Boston, Massachusetts, 02115, United States of America
| | - S. Nahum Goldberg
- Laboratory for Minimally Invasive Tumor Therapies, Department of Radiology, Beth Israel Deaconess Medical Center/Harvard Medical School, 1 Deaconess Rd.–WCC-308B, Boston, Massachusetts, 02215, United States of America
- Division of Image-guided Therapy and Interventional Oncology, Department of Radiology, Hadassah Hebrew University Medical Center, Kiryat Hadassah POB 12000, Jerusalem, 91120, Israel
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Chen C, Lin X, Wang J, Tang G, Mu Z, Chen X, Xu J, Wang Y, Zhang Z, Yang GY. Effect of HMGB1 on the Paracrine Action of EPC Promotes Post-Ischemic Neovascularization in Mice. Stem Cells 2014; 32:2679-89. [PMID: 24888319 DOI: 10.1002/stem.1754] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 04/21/2014] [Accepted: 05/10/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Chao Chen
- Department of Neurology, Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai People's Republic of China
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Xiaojie Lin
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Jixian Wang
- Department of Neurology, Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai People's Republic of China
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Guanghui Tang
- Department of Neurology, Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai People's Republic of China
| | - Zhihao Mu
- Department of Neurology, Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai People's Republic of China
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Xiaoyan Chen
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Jin Xu
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Yongting Wang
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Zhijun Zhang
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
| | - Guo-Yuan Yang
- Department of Neurology, Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai People's Republic of China
- Neuroscience and Neuroengineering Center; Med-X Research Institute Shanghai Jiao Tong University; Shanghai People's Republic of China
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Mesenchymal stem cells for cardiac therapy: practical challenges and potential mechanisms. Stem Cell Rev Rep 2014; 9:254-65. [PMID: 22577007 DOI: 10.1007/s12015-012-9375-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cell based treatments for myocardial infarction have demonstrated efficacy in the laboratory and in phase I clinical trials, but the understanding of such therapies remains incomplete. Mesenchymal stem cells (MSCs) are classically defined as maintaining the ability to generate mesenchyme-derived cell types, namely adipocytes, chondrocytes and osteocytes. Recent evidence suggests these cells may in fact harbor much greater potency than originally realized, as several groups have found that MSCs can form cardiac lineage cells in vitro. Additionally, experimental coculture of MSCs with cardiomyocytes appears to improve contractile function of the latter. Bolstered by such findings, several clinical trials have begun to test MSC transplantation for improving post-infarct cardiac function in human patients. The results of these trials have been mixed, underscoring the need to develop a deeper understanding of the underlying stem cell biology. To help synthesize the breadth of studies on the topic, this paper discusses current challenges in the field of MSC cellular therapies for cardiac repair, including methods of cell delivery and the identification of molecular markers that accurately specify the therapeutically relevant mesenchymal cell types. The various possible mechanisms of MSC mediated cardiac improvement, including somatic reprogramming, transdifferentiation, paracrine signaling, and direct electrophysiological coupling are also reviewed. Finally, we consider the traditional cell culture microenvironment, and the promise of cardiac tissue engineering to provide biomimetic in vitro model systems to more faithfully investigate MSC biology, helping to safely and effectively translate exciting discoveries in the laboratory to meaningful therapies in the clinic.
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Mesenchymal stem cell therapy for cardiac inflammation: immunomodulatory properties and the influence of toll-like receptors. Mediators Inflamm 2013; 2013:181020. [PMID: 24391353 PMCID: PMC3872440 DOI: 10.1155/2013/181020] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 11/14/2013] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND After myocardial infarction (MI), the inflammatory response is indispensable for initiating reparatory processes. However, the intensity and duration of the inflammation cause additional damage to the already injured myocardium. Treatment with mesenchymal stem cells (MSC) upon MI positively affects cardiac function. This happens likely via a paracrine mechanism. As MSC are potent modulators of the immune system, this could influence this postinfarct immune response. Since MSC express toll-like receptors (TLR), danger signal (DAMP) produced after MI could influence their immunomodulatory properties. SCOPE OF REVIEW Not much is known about the direct immunomodulatory efficiency of MSC when injected in a strong inflammatory environment. This review focuses first on the interactions between MSC and the immune system. Subsequently, an overview is provided of the effects of DAMP-associated TLR activation on MSC and their immunomodulative properties after myocardial infarction. MAJOR CONCLUSIONS MSC can strongly influence most cell types of the immune system. TLR signaling can increase and decrease this immunomodulatory potential, depending on the available ligands. Although reports are inconsistent, TLR3 activation may boost immunomodulation by MSC, while TLR4 activation suppresses it. GENERAL SIGNIFICANCE Elucidating the effects of TLR activation on MSC could identify new preconditioning strategies which might improve their immunomodulative properties.
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Inhibition of Toll-like receptor 2 reduces cardiac fibrosis by attenuating macrophage-mediated inflammation. Cardiovasc Res 2013; 101:383-92. [DOI: 10.1093/cvr/cvt258] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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DeSantiago J, Bare DJ, Banach K. Ischemia/Reperfusion injury protection by mesenchymal stem cell derived antioxidant capacity. Stem Cells Dev 2013; 22:2497-507. [PMID: 23614555 DOI: 10.1089/scd.2013.0136] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Mesenchymal stem cell (MSC) transplantation after ischemia/reperfusion (I/R) injury reduces infarct size and improves cardiac function. We used mouse ventricular myocytes (VMs) in an in vitro model of I/R to determine the mechanism by which MSCs prevent reperfusion injury by paracrine signaling. Exposure of mouse VMs to an ischemic challenge depolarized their mitochondrial membrane potential (Ψmito), increased their diastolic Ca(2+), and significantly attenuated cell shortening. Reperfusion of VMs with Ctrl tyrode or MSC-conditioned tyrode (ConT) resulted in a transient increase of the Ca(2+) transient amplitudes in all cells. ConT-reperfused cells exhibited a decreased number early after depolarization (EADs) (ConT: 6.3% vs. Ctrl: 28.4%) and prolonged survival (ConT: 58% vs. Ctrl: 33%). Ψmito rapidly recovered in Ctrl as well as ConT-treated VMs on reperfusion; however, in Ctrl solution, an exaggerated hyperpolarization of Ψmito was determined that preceded the collapse of Ψmito. The ability of ConT to attenuate the hyperpolarization of Ψmito was suppressed on inhibition of the PI3K/Akt signaling pathway or IK,ATP. However, protection of Ψmito was best mimicked by the reactive oxygen species (ROS) scavenger mitoTEMPO. Analysis of ConT revealed a significant antioxidant capacity that was linked to the presence of extracellular superoxide dismutase (SOD3) in ConT. In conclusion, MSC ConT protects VMs from simulated I/R injury by its SOD3-mediated antioxidant capacity and by delaying the recovery of Ψmito through Akt-mediated opening of IK,ATP. These changes attenuate reperfusion-induced ROS production and prevent the opening of the permeability transition pore and arrhythmic Ca(2+) release.
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Affiliation(s)
- Jaime DeSantiago
- Section of Cardiology, Department of Medicine, Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, Illinois 60612-7323, USA
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Rosado-de-Castro PH, Pimentel-Coelho PM, da Fonseca LMB, de Freitas GR, Mendez-Otero R. The rise of cell therapy trials for stroke: review of published and registered studies. Stem Cells Dev 2013; 22:2095-111. [PMID: 23509917 DOI: 10.1089/scd.2013.0089] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Stroke is the second leading cause of death and the third leading cause of disability worldwide. Approximately 16 million first-ever strokes occur each year, leading to nearly 6 million deaths. Nevertheless, currently, very few therapeutic options are available. Cell therapies have been applied successfully in different hematological diseases, and are currently being investigated for treating ischemic heart disease, with promising results. Recent preclinical studies have indicated that cell therapies may provide structural and functional benefits after stroke. However, the effects of these treatments are not yet fully understood and are the subject of continuing investigation. Meanwhile, different clinical trials for stroke, the majority of them small, nonrandomized, and uncontrolled, have been reported, and their results indicate that cell therapy seems safe and feasible in these conditions. In the last 2 years, the number of published and registered trials has dramatically increased. Here, we review the main findings available in the field, with emphasis on the clinical results. Moreover, we address some of the questions that have been raised to date, to improve future studies.
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Furlani D, Donndorf P, Westien I, Ugurlucan M, Pittermann E, Wang W, Li W, Vollmar B, Steinhoff G, Kaminski A, Ma N. HMGB-1 induces c-kit+ cell microvascular rolling and adhesion via both toll-like receptor-2 and toll-like receptor-4 of endothelial cells. J Cell Mol Med 2012; 16:1094-105. [PMID: 21762373 PMCID: PMC4365888 DOI: 10.1111/j.1582-4934.2011.01381.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
High-mobility group box 1 (HMGB-1) is a strong chemo-attractive signal for both inflammatory and stem cells. The aim of this study is to evaluate the mechanisms regulating HMGB-1-mediated adhesion and rolling of c-kit(+) cells and assess whether toll-like receptor-2 (TLR-2) and toll-like receptor-4 (TLR-4) of endothelial cells or c-kit(+) cells are implicated in the activation of downstream migration signals to peripheral c-kit(+) cells. Effects of HMGB-1 on the c-kit(+) cells/endothelial interaction were evaluated by a cremaster muscle model in wild-type (WT), TLR-2 (-/-) and Tlr4 (LPS-del) mice. The mRNA and protein expression levels of endothelial nitric oxide synthase were determined by quantitative real-time PCR and immunofluorescence staining. Induction of crucial adhesion molecules for rolling and adhesion of stem cells and leukocytes were monitored in vivo and in vitro. Following local HMGB-1 administration, a significant increase in cell rolling was detected (32.4 ± 7.1% in 'WT' versus 9.9 ± 3.2% in 'control', P < 0.05). The number of firmly adherent c-kit(+) cells was more than 13-fold higher than that of the control group (14.6 ± 5.1 cells/mm(2) in 'WT' versus 1.1 ± 1.0 cells/mm(2) in 'control', P < 0.05). In knockout animals, the fraction of rolling cells did not differ significantly from control levels. Firm endothelial adhesion was significantly reduced in TLR-2 (-/-) and Tlr4 (LPS-del) mice compared to WT mice (1.5 ± 1.4 cells/mm(2) in 'TLR-2 (-/-)' and 2.4 ± 1.4 cells/mm(2) in 'Tlr4 (LPS-del)' versus 14.6 ± 5.1 cells/mm(2) in 'WT', P < 0.05). TLR-2 (-/-) and Tlr4 (LPS-del) stem cells in WT mice did not show significant reduction in rolling and adhesion compared to WT cells. HMGB-1 mediates c-kit(+) cell recruitment via endothelial TLR-2 and TLR-4.
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Affiliation(s)
- Dario Furlani
- Reference and Translation Centre for Cardiac Stem Cell Therapy, Department of Cardiac Surgery, University Rostock, Rostock, Germany
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Delarosa O, Dalemans W, Lombardo E. Toll-like receptors as modulators of mesenchymal stem cells. Front Immunol 2012; 3:182. [PMID: 22783256 PMCID: PMC3387651 DOI: 10.3389/fimmu.2012.00182] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 06/13/2012] [Indexed: 12/15/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have differentiation and immunomodulatory properties that make them interesting tools for the treatment of degenerative disorders, allograft rejection, or inflammatory and autoimmune diseases. Biological properties of MSCs can be modulated by the inflammatory microenvironment they face at the sites of injury or inflammation. Indeed, MSCs do not constitutively exert their immunomodulating properties but have to be primed by inflammatory mediators released from immune cells and inflamed tissue. A polarization process, mediated by Toll-like receptors (TLRs), toward either an anti-inflammatory or a pro-inflammatory phenotype has been described for MSCs. TLRs have been linked to allograft rejection and the perpetuation of chronic inflammatory diseases (e.g., Crohn’s disease, rheumatoid arthritis) through the recognition of conserved pathogen-derived components or endogenous ligands (danger signals) produced upon injury. Interest in understanding the effects of TLR activation on MSCs has greatly increased in the last few years since MSCs will likely encounter TLR ligands at sites of injury, and it has been proven that the activation of TLRs in MSCs can modulate their function and therapeutic effect.
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Affiliation(s)
- Olga Delarosa
- Research and Development Department, TiGenix SA, Parque Tecnológico de Madrid Madrid, Spain
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26
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Lee JJ, Hsiao CC, Yang IH, Chou MH, Wu CL, Wei YC, Chen CH, Chuang JH. High-mobility group box 1 protein is implicated in advanced glycation end products-induced vascular endothelial growth factor A production in the rat retinal ganglion cell line RGC-5. Mol Vis 2012; 18:838-50. [PMID: 22511847 PMCID: PMC3327441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 04/02/2012] [Indexed: 11/09/2022] Open
Abstract
PURPOSE High-mobility group box 1 protein (HMGB1) has been reported to be a potent proangiogenic factor induced by inflammatory stress. In this study, we explore the role of HMGB1 in advanced glycation end products (AGEs)-induced vascular endothelial growth factor A (VEGF-A) production in rat retinal ganglion cell line 5 (RGC-5) cells. METHODS The VEGF-A protein and mRNA levels in conditioned medium of RGC-5 cells incubated with AGE-modified BSA (AGE-BSA) were examined with real-time PCR and enzyme-linked immunosorbent assay (ELISA), and BSA-treated cells were used as controls. The expression of HMGB1, c-Jun N-terminal kinase (JNK), extracellular-signal-regulated kinase (ERK), and p38 mitogen-activated protein kinase (p38 MAPK) was assessed with immunofluorescence and western blot analysis. Reactive oxidative species (ROS) were detected with flow cytometry measurements of peroxide-dependent oxidation of 2'-7'-dichlorofluorescein-diacetate (DCFH-DA). N-Acetyl-L-cysteine (NAC), glycyrrhizin (GZ), and SP600125 were used to block ROS, HMGB1, and JNK, respectively. RESULTS Compared with the BSA controls, the RGC-5 cells incubated with AGE-BSA showed a dose- and time-dependent increase in VEGF-A mRNA and VEGF-A protein secretion in the supernatant, with the highest levels achieved at 24 h. AGE-BSA stimulated a significant release of HMGB1 in the supernatant and a significant increase of intracellular ROS production at 3 h. NAC blocked HMGB1 production in a dose-dependent manner. Blocking with GZ, NAC, and JNK significantly suppressed AGE-induced VEGF-A production. CONCLUSIONS HMGB1 is implicated in the production of VEGF-A in retinal ganglion cell line-5 (RGC-5). Blocking HMGB1, ROS, or the JNK pathway may attenuate VEGF-A production, suggesting HMGB1 and related signaling molecules play a role in diabetic retinopathy.
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Affiliation(s)
- Jong-Jer Lee
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan,The Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chang-Chun Hsiao
- The Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - I-Hui Yang
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ming-Huei Chou
- The Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chia-Lin Wu
- Department of Surgery, Division of Pediatric Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yin-Chu Wei
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Hsin Chen
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Jiin-Haur Chuang
- Department of Surgery, Division of Pediatric Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan,The Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung, Taiwan
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Rodríguez R, García-Castro J, Trigueros C, García Arranz M, Menéndez P. Multipotent mesenchymal stromal cells: clinical applications and cancer modeling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2012; 741:187-205. [PMID: 22457111 DOI: 10.1007/978-1-4614-2098-9_13] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The recognition of the therapeutic potential of Multipotent Mesenchymal Stromal Cells (MSCs) is one of the most exciting recent advances in cell therapy. In just ten years, since the description of the multilineage potential of MSCs by Pittenger et al in 1999 until now, MSCs are being used in more than 150 clinical trials as therapeutic agents. The potential of these cells for cell-based therapies relies on several key properties: (1) their capacity to differentiate into several cell lineages; (2) their lack of immunogenicity and their immunomodulatory properties; (3) their ex vivo expansion potential; (4) their ability to secrete soluble factors which regulate crucial biological functions such as proliferation and differentiation over a broad spectrum of target cells; and (5) their ability to home to damaged tissues and tumor sites. Based on these properties MSCs are being exploited worldwide for a wide range of potential clinical applications including cell replacement strategies, treatment of graft-versus-host disease, autoimmune diseases and rejection after solid organ transplantation as well as their use as vehicles to deliver anti-cancer therapies. Importantly, the low inherent immunogenicity of MSCs means that they could be used not only for autologous but also for allogeneic cell therapies. In addition, increasing evidence has revealed a complex relationship between MSCs and cancer. Thus, solid evidence has placed MSCs transformed with specific mutations as the most likely cell of origin for certain sarcomas, and MSCs have been reported to both, inhibit or promote tumor growth depending on yet undefined conditions. Here we will thoroughly discuss the different potential clinical applications of MSC as well as the role of MSCs on sarcomagenesis and the control of tumor growth.
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Affiliation(s)
- René Rodríguez
- Andalusian Stem Cell Bank, Centro de Investigación Biomédica, Consejería de Salud-Universidad de Granada, Spain.
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Ha T, Liu L, Kelley J, Kao R, Williams D, Li C. Toll-like receptors: new players in myocardial ischemia/reperfusion injury. Antioxid Redox Signal 2011; 15:1875-93. [PMID: 21091074 PMCID: PMC3159106 DOI: 10.1089/ars.2010.3723] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Innate immune and inflammatory responses have been implicated in myocardial ischemia/reperfusion (I/R) injury. However, the mechanisms by which innate immunity and inflammatory response are involved in myocardial I/R have not been elucidated completely. Recent studies highlight the role of Toll-like receptors (TLRs) in the induction of innate immune and inflammatory responses. Growing evidence has demonstrated that TLRs play a critical role in myocardial I/R injury. Specifically, deficiency of TLR4 protects the myocardium from ischemic injury, whereas modulation of TLR2 induces cardioprotection against ischemic insult. Importantly, cardioprotection induced by modulation of TLRs involves activation of the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway, suggesting that there is a crosstalk between TLRs and PI3K/Akt signaling pathways. In addition, TLRs also associate with other coreceptors, such as macrophage scavenger receptors in the recognition of their ligands. TLRs are also involved in the induction of angiogenesis, modulation of stem cell function, and expression of microRNA, which are currently important topic areas in myocardial I/R. Understanding how TLRs contribute to myocardial I/R injury could provide basic scientific knowledge for the development of new therapeutic approaches for the treatment and management of patients with heart attack.
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Affiliation(s)
- Tuanzhu Ha
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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Intravenous Infusion of Mesenchymal Stem Cells Is Associated With Improved Myocardial Function During Endotoxemia. Shock 2011; 36:235-41. [DOI: 10.1097/shk.0b013e318225f6ae] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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30
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Lu C, Liu L, Chen Y, Ha T, Kelley J, Schweitzer J, Kalbfleisch JH, Kao RL, Williams DL, Li C. TLR2 ligand induces protection against cerebral ischemia/reperfusion injury via activation of phosphoinositide 3-kinase/Akt signaling. THE JOURNAL OF IMMUNOLOGY 2011; 187:1458-66. [PMID: 21709150 DOI: 10.4049/jimmunol.1003428] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This study examined the effect of TLR2 activation by its specific ligand, Pam3CSK4, on cerebral ischemia/reperfusion (I/R) injury. Mice (n = 8/group) were treated with Pam3CSK4 1 h before cerebral ischemia (60 min), followed by reperfusion (24 h). Pam3CSK4 was also given to the mice (n = 8) 30 min after ischemia. Infarct size was determined by triphenyltetrazolium chloride staining. The morphology of neurons in brain sections was examined by Nissl staining. Pam3CSK4 administration significantly reduced infarct size by 55.9% (p < 0.01) compared with untreated I/R mice. Therapeutic treatment with Pam3CSK4 also significantly reduced infarct size by 55.8%. Morphologic examination showed that there was less neuronal damage in the hippocampus of Pam3CSK4-treated mice compared with untreated cerebral I/R mice. Pam3CSK4 treatment increased the levels of Hsp27, Hsp70, and Bcl2, and decreased Bax levels and NF-κB-binding activity in the brain tissues. Administration of Pam3CSK4 significantly increased the levels of phospho-Akt/Akt and phospho-GSK-3β/GSK-3β compared with untreated I/R mice. More significantly, either TLR2 deficiency or PI3K inhibition with LY29004 abolished the protection by Pam3CSK4. These data demonstrate that activation of TLR2 by its ligand prevents focal cerebral ischemic damage through a TLR2/PI3K/Akt-dependent mechanism. Of greater significance, these data indicate that therapy with a TLR2-specific agonist during cerebral ischemia is effective in reducing injury.
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Affiliation(s)
- Chen Lu
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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31
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The essential roles of Toll-like receptor signaling pathways in sterile inflammatory diseases. Int Immunopharmacol 2011; 11:1422-32. [PMID: 21600309 DOI: 10.1016/j.intimp.2011.04.026] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Revised: 04/29/2011] [Accepted: 04/30/2011] [Indexed: 02/06/2023]
Abstract
Toll-like receptors (TLRs) form a family of pattern recognition receptors with at least 11 members in human and 13 in mouse. TLRs recognize a wide variety of putative host-derived agonists that have emerged as key mediators of innate immunity. TLR signaling also plays an important role in the activation of the adaptive immune system by inducing pro-inflammatory cytokines and upregulating costimulatory molecules of antigen presenting cells. Inappropriate activation of TLRs by self-components generated by damaged tissues may result in sterile inflammation. This review discusses the contribution of TLR signaling to the initiation and progression of non-infectious inflammatory processes, such as ischemia and reperfusion (I/R) injury, tissue repair and regeneration and autoimmune diseases. The involvement of TLR signaling in the pathogenesis of sterile inflammation-related diseases may provide novel targets for the development of therapeutics.
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32
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Poynter JA, Herrmann JL, Manukyan MC, Wang Y, Abarbanell AM, Weil BR, Brewster BD, Meldrum DR. Intracoronary mesenchymal stem cells promote postischemic myocardial functional recovery, decrease inflammation, and reduce apoptosis via a signal transducer and activator of transcription 3 mechanism. J Am Coll Surg 2011; 213:253-60. [PMID: 21546276 DOI: 10.1016/j.jamcollsurg.2011.04.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Revised: 04/04/2011] [Accepted: 04/04/2011] [Indexed: 11/28/2022]
Abstract
BACKGROUND Signal transducer and activator of transcription 3 (STAT3) regulates myocardial apoptosis, cellular proliferation, and the immune response after ischemia/reperfusion (I/R). STAT3 is also necessary for the production of vascular endothelial growth factor (VEGF) by mesenchymal stem cells (MSCs), which are known to reduce myocardial injury after I/R. However, it remains unknown whether STAT3 is an important mediator of MSC-based cardioprotection. We hypothesized that knockout of stem cell STAT3 would reduce MSC-derived myocardial functional recovery and increase myocardial inflammatory and apoptotic signaling. STUDY DESIGN With a Langendorff apparatus, male rat hearts were subjected to 15 minutes of equilibration and 25 minutes of ischemia, followed by 40 minutes of reperfusion. Immediately before ischemia, hearts received intracoronary infusions of vehicle, wild-type MSCs (WT MSCs) or STAT3 knockout MSCs (STAT3KO MSCs). Heart function was measured continuously. Myocardial homogenates were analyzed for production of interleukin (IL)-1, IL-6, and tumor necrosis factor-α (TNF-α). Additionally, MSC production of hepatocyte growth factor (HGF) and insulin-like growth factor-1 (IGF-1) were measured in vitro. RESULTS Hearts treated with WT MSCs exhibited the greatest functional recovery, and those treated with STAT3KO MSCs had equivalent recovery to vehicle. The highest proinflammatory cytokine levels were seen in vehicle-treated hearts, and the lowest in the WT MSC group. STAT3KO MSCs produced less IGF-1, but more HGF than WT MSCs. Finally, hearts treated with STAT3KO MSCs or vehicle had significantly higher caspase-3 levels than those treated with WT MSCs. CONCLUSIONS Intracoronary infusions of MSCs improve postischemic left ventricular function and reduce proapoptotic and proinflammatory signaling via a STAT3-dependent mechanism.
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Affiliation(s)
- Jeffrey A Poynter
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
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Manukyan MC, Weil BR, Wang Y, Abarbanell AM, Herrmann JL, Poynter JA, Brewster BD, Meldrum DR. Female stem cells are superior to males in preserving myocardial function following endotoxemia. Am J Physiol Regul Integr Comp Physiol 2011; 300:R1506-14. [PMID: 21451141 DOI: 10.1152/ajpregu.00518.2010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Mesenchymal stem cells (MSCs) may offer therapeutic benefit in the setting of sepsis and endotoxemia. Previous studies suggest that MSCs from female donors may possess better protective capabilities than their male counterparts. The present study examined whether female MSCs may offer a greater protective advantage in the setting of endotoxemic cardiac dysfunction compared with male MSCs. Adult male Sprague-Dawley rats were injected intraperitoneally with LPS and then treated with intraperitoneal injections of either saline, female MSCs, or male MSCs. Hearts and serum were then collected for analysis of myocardial function, myocardial protein, and myocardial and serum cytokines. Compared with male MSC or vehicle-treated animals, female MSC treatment resulted in greater preservation of myocardial function (P < 0.001). Serum and myocardial levels of all measured cytokines were comparable between rats given MSCs from male or female donors but substantially improved over rats given vehicle (P < 0.05). Reduced myocardial inflammation correlated with reduced levels of phosphorylated p38 MAPK expression in the myocardium of animals injected with MSCs of either sex (P < 0.05). The Bcl-xL/Bax ratio was increased to a greater extent following treatment with female MSCs vs. male MSCs (P < 0.05). Intraperitoneal administration of MSCs is effective in limiting myocardial inflammation and dysfunction in the rat endotoxemia model. Compared with treatment with their male counterparts, MSC treatment from female donors is associated with greater cardiac protection against acute endotoxemic injury.
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Affiliation(s)
- Mariuxi C Manukyan
- Department of Surgery, Indiana University School of Medicine, Indianapolis, USA
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Wu J, Li J, Zhang N, Zhang C. Stem cell-based therapies in ischemic heart diseases: a focus on aspects of microcirculation and inflammation. Basic Res Cardiol 2011; 106:317-24. [PMID: 21424917 DOI: 10.1007/s00395-011-0168-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 02/09/2011] [Accepted: 02/22/2011] [Indexed: 11/28/2022]
Abstract
Stem cells possessing the potential to replace damaged myocardium with functional myocytes have drawn increasing attention in the past decade in treating ischemic heart diseases; these diseases are the leading cause of morbidity and mortality in the world. The adult heart has recently been shown to contain a few cardiac stem cells (CSCs) that, in theory, suggest cardiac repair following acute myocardial infarction is possible if the CSC titer could be increased. Stem cell-based therapies, including hematopoietic stem cells and mesenchymal stem cells, were proven to be marginal and transitional. Multiple factors and mechanisms, rather than direct cardiac regeneration are involved in stem cell-mediated cardiac functional improvement. This review will focus on (1) the interaction between inflammation and stem cells; (2) the fate of stem cells at the microcirculatory level, and their subsequent influences on stem cell-based therapies.
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Affiliation(s)
- Junxi Wu
- Department of Internal Medicine, Medical Pharmacology and Physiology and Nutrition and Exercise Physiology, Dalton Cardiovascular Research Center, University of Missouri-Columbia, 65211, USA
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Song SY, Chung HM, Sung JH. The pivotal role of VEGF in adipose-derived-stem-cell-mediated regeneration. Expert Opin Biol Ther 2010; 10:1529-37. [PMID: 20860536 DOI: 10.1517/14712598.2010.522987] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
IMPORTANCE OF THE FIELD Several lines of evidence suggest that VEGF is a key regulator of the paracrine effects of adipose-derived stem cells (ASCs), but the mechanism of action remains to be identified. AREAS COVERED IN THIS REVIEW This brief review discusses the following research questions: i) Does VEGF increase the proliferation/migration and differentiation of ASCs?; ii) Does VEGF mediate the paracrine effects of ASCs?; and iii) How is VEGF synthesized, and which factors regulate VEGF secretion? WHAT THE READER WILL GAIN External stimuli such as hypoxia may activate receptor tyrosine kinases in the membrane of ASCs, which, in turn, phosphorylate extracellular signal regulated kinase (ERK) and members of the Akt signaling pathway, stabilizing hypoxia inducible factor 1α (HIF-1α) that are primary regulators of VEGF expression. Secreted VEGF directly stimulates ASCs via VEGF receptors in an autocrine manner and regenerates damaged neighboring cells in a paracrine manner. TAKE HOME MESSAGE Most studies of stem cell regeneration have focused on differentiation of ASCs and their building block function; however, the paracrine effects of ASCs should also be the focus of attention.
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Affiliation(s)
- Seung-Yong Song
- Department of Plastic & Reconstructive Surgery, CHA University, CHA Bundang Medical Center, Seongnam-si, Gyeonggi-do, Korea
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36
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Mirotsou M, Jayawardena TM, Schmeckpeper J, Gnecchi M, Dzau VJ. Paracrine mechanisms of stem cell reparative and regenerative actions in the heart. J Mol Cell Cardiol 2010; 50:280-9. [PMID: 20727900 DOI: 10.1016/j.yjmcc.2010.08.005] [Citation(s) in RCA: 330] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 08/02/2010] [Accepted: 08/03/2010] [Indexed: 12/12/2022]
Abstract
Stem cells play an important role in restoring cardiac function in the damaged heart. In order to mediate repair, stem cells need to replace injured tissue by differentiating into specialized cardiac cell lineages and/or manipulating the cell and molecular mechanisms governing repair. Despite early reports describing engraftment and successful regeneration of cardiac tissue in animal models of heart failure, these events appear to be infrequent and yield too few new cardiomyocytes to account for the degree of improved cardiac function observed. Instead, mounting evidence suggests that stem cell mediated repair takes place via the release of paracrine factors into the surrounding tissue that subsequently direct a number of restorative processes including myocardial protection, neovascularization, cardiac remodeling, and differentiation. The potential for diverse stem cell populations to moderate many of the same processes as well as key paracrine factors and molecular pathways involved in stem cell-mediated cardiac repair will be discussed in this review. This article is part of a special issue entitled, "Cardiovascular Stem Cells Revisited".
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Affiliation(s)
- Maria Mirotsou
- Department of Medicine, Duke University Medical Center & Mandel Center for Hypertension and Atherosclerosis Research, Durham, NC 27710, USA
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