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Najar M, Bouhtit F, Rahmani S, Bouali A, Melki R, Najimi M, Lewalle P, Merimi M. The immunogenic profile and immunomodulatory function of mesenchymal stromal / stem cells in the presence of Ptychotis verticillata. Heliyon 2024; 10:e24822. [PMID: 38317994 PMCID: PMC10838760 DOI: 10.1016/j.heliyon.2024.e24822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 02/07/2024] Open
Abstract
Mesenchymal stromal/stem cells (MSCs) are considered to be a promising immunotherapeutic tool due to their easy accessibility, culture expansion possibilities, safety profile, and immunomodulatory properties. Although several studies have demonstrated the therapeutic effects of MSCs, their efficacy needs to be improved while also preserving their safety. It has been suggested that cell homeostasis may be particularly sensitive to plant extracts. The impact of natural compounds on immunity is thus a fascinating and growing field. Ptychotis verticillata and its bioactive molecules, carvacrol and thymol, are potential candidates for improving MSC therapeutic effects. They can be used as immunotherapeutic agents to regulate MSC functions and behavior during immunomodulation. Depending on their concentrations and incubation time, these compounds strengthened the immunomodulatory functions of MSCs while maintaining their immune-evasive profile. Incubating MSCs with carvacrol and thymol does not alter their hypoimmunogenicity, as no induction of the allogeneic immune response was observed. MSCs also showed enhanced abilities to reduce the proliferation of activated T cells. Thus, MSCs are immunologically responsive to bioactive molecules derived from PV. The bioactivity may depend on the whole phyto-complex of the oil. These findings may contribute to the development of safe and efficient immunotherapeutic MSCs by using medicinal plant-derived active molecules.
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Affiliation(s)
- Mehdi Najar
- Faculty of Medicine, ULB721, Université Libre de Bruxelles, 1070 Brussels, Belgium
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), University of Montreal, Montreal H2X 0A9, QC, Canada
| | - Fatima Bouhtit
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Saida Rahmani
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Abderrahim Bouali
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Rahma Melki
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Mustapha Najimi
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Philippe Lewalle
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Makram Merimi
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
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Johnston A, Callanan A. Recent Methods for Modifying Mechanical Properties of Tissue-Engineered Scaffolds for Clinical Applications. Biomimetics (Basel) 2023; 8:205. [PMID: 37218791 PMCID: PMC10204517 DOI: 10.3390/biomimetics8020205] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/03/2023] [Accepted: 05/12/2023] [Indexed: 05/24/2023] Open
Abstract
The limited regenerative capacity of the human body, in conjunction with a shortage of healthy autologous tissue, has created an urgent need for alternative grafting materials. A potential solution is a tissue-engineered graft, a construct which supports and integrates with host tissue. One of the key challenges in fabricating a tissue-engineered graft is achieving mechanical compatibility with the graft site; a disparity in these properties can shape the behaviour of the surrounding native tissue, contributing to the likelihood of graft failure. The purpose of this review is to examine the means by which researchers have altered the mechanical properties of tissue-engineered constructs via hybrid material usage, multi-layer scaffold designs, and surface modifications. A subset of these studies which has investigated the function of their constructs in vivo is also presented, followed by an examination of various tissue-engineered designs which have been clinically translated.
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Affiliation(s)
| | - Anthony Callanan
- Institute for Bioengineering, School of Engineering, University of Edinburgh, Edinburgh EH9 3DW, UK;
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Shende P, Gandhewar N. Current Trend and Pro-survival Approaches for Augmenting Stem Cell Viability. Curr Pharm Biotechnol 2020; 21:1154-1164. [PMID: 32297579 DOI: 10.2174/1389201021666200416130253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Stem cells are of two types: embryonic and adult stem cells and they act as a repair system by replenishing body tissue. Stem cells differentiate into different types of cells, such as neural, hematopoietic, adipose, etc. and are used for the treatment of various conditions like myocardial infarction, spinal cord injury, Parkinson's disease and diabetes. METHODS This article focuses on recent research development that addresses the viability issues of stem cells. The efficiency of transplanted stem cells reduces due to conditions like hypoxia, inflammation, nutrient deprivation, immunogenicity, extracellular matrix loss on delivery and mechanical stress. RESULTS To increase the viability of stem cells, techniques like scaffolds of stem cells with hydrogel or alginate, pre-conditioning, different routes of administration and encapsulation, are implemented. CONCLUSION For the protection of stem cells against apoptosis, different pathways, namely Phosphoinositide 3-Kinase (PI3K/AKT), Hypoxia-Inducible Factor (HIF1), Mitogen-Activated Protein Kinases (MAPK) and Hippo, are discussed. DISCUSSION Activation of the PI3K/AKT pathway decreases the concentration of apoptotic factors, while the HIF pathway protects stem cells against the micro-environment of tissue (hypoxia).
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Affiliation(s)
- Pravin Shende
- Shobhaben Pratapbhai Patel School Pharmacy and Technology Management SVKM'S NMIMS, V.L Mehta Road, Vile Parle(W), Mumbai, India
| | - Nivedita Gandhewar
- Shobhaben Pratapbhai Patel School Pharmacy and Technology Management SVKM'S NMIMS, V.L Mehta Road, Vile Parle(W), Mumbai, India
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Shroff G, Srivastav A, Shroff R. Human Embryonic Stem Cell Derived from Early Stage Fertilized Ovum: Non Immunogenic and Universal, Neuronal and Non-neuronal Cell Lines. Int J Stem Cells 2018; 11:105-110. [PMID: 29699383 PMCID: PMC5984064 DOI: 10.15283/ijsc17064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/09/2018] [Accepted: 02/18/2018] [Indexed: 12/12/2022] Open
Abstract
Background Human embryonic stem cells (hESCs) have the potential to treat various human disorders currently labeled as incurable and/or terminal illness. However, the fear that the patients' immune system would recognize them as non self and lead to an immune rejection has hampered their use. The main cause for immune rejection is usually the incompatibility of both donor and recipient's major histocompatibility complex (MHC). Methods We describe a hESC line developed through a patented technology that does not lead to immune reaction upon transplantation. We have transplanted these cells in >1,400 patients with chronic/terminal conditions and did not observe any immune reaction. No immunosuppressant were administered to these patients. We analyzed the expression levels of MHC-I and MHC-II on the surface of these hESCs using microarray technology. The gene targets for miRNA were analyzed using Gene ontology and DAVID database and pathways for these genes were determined using Reactome and Panther databases. Results Our results showed that the levels of expression of MHC-I and MHC-II on hESCs is almost negligible and thus the hESCs are less susceptible to an immune rejection. Conclusions The hESCs cultured at our facility expresses low levels of MHC-I and do not produce an immune reaction. These can be administered universally and need no cross matching before transplantation.
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Kreke M, Smith RR, Marbán L, Marbán E. Cardiospheres and cardiosphere-derived cells as therapeutic agents following myocardial infarction. Expert Rev Cardiovasc Ther 2013; 10:1185-94. [PMID: 23098154 DOI: 10.1586/erc.12.102] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Heart disease is a major cause of morbidity and mortality. Cellular therapies hold significant promise for patients with heart disease. Heart-derived progenitor cells are capable of repairing a diseased heart through modulation of growth factor milieu and temporary engraftment leading to endogenous repair. The proof-of-concept CADUCEUS clinical trial using cardiosphere-derived cells has shown evidence of therapeutic cardiac tissue regeneration. Future clinical trials are now being planned to generate additional safety and efficacy data in the hopes of building toward an approved cellular therapy for heart disease.
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Jacquet L, Stephenson E, Collins R, Patel H, Trussler J, Al-Bedaery R, Renwick P, Ogilvie C, Vaughan R, Ilic D. Strategy for the creation of clinical grade hESC line banks that HLA-match a target population. EMBO Mol Med 2012; 5:10-7. [PMID: 23161805 PMCID: PMC3569650 DOI: 10.1002/emmm.201201973] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/04/2012] [Accepted: 10/09/2012] [Indexed: 01/08/2023] Open
Abstract
Here, we describe a pre-derivation embryo haplotyping strategy that we developed in order to maximize the efficiency and minimize the costs of establishing banks of clinical grade hESC lines in which human leukocyte antigen (HLA) haplotypes match a significant proportion of the population. Using whole genome amplification followed by medium resolution HLA typing using PCR amplification with sequence-specific primers (PCR-SSP), we have typed the parents, embryos and hESC lines from three families as well as our eight clinical grade hESC lines and shown that this technical approach is rapid, reliable and accurate. By employing this pre-derivation strategy where, based on HLA match, embryos are selected for a GMP route on day 3-4 of development, we would have drastically reduced our cGMP laboratory running costs.
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Affiliation(s)
- Laureen Jacquet
- Embryonic Stem Cell Laboratories, Guy's Assisted Conception Unit, Division of Women's Health, King's College School of Medicine, London, UK
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Akla N, Pratt J, Annabi B. Concanavalin-A triggers inflammatory response through JAK/STAT3 signalling and modulates MT1-MMP regulation of COX-2 in mesenchymal stromal cells. Exp Cell Res 2012; 318:2498-506. [PMID: 22971618 DOI: 10.1016/j.yexcr.2012.08.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 08/02/2012] [Accepted: 08/20/2012] [Indexed: 12/22/2022]
Abstract
Pharmacological targeting of inflammation through STAT3 and NF-κB signaling pathways is, among other inflammatory biomarkers, associated with cyclooxygenase (COX)-2 inhibition and is believed to play a crucial role in prevention and therapy of cancer. Recently, inflammatory factors were found to impact on mesenchymal stromal cells (MSC) contribution to tumor angiogenesis. Given MSC chemotaxis and cell survival are regulated, in part, by the membrane type-1 matrix metalloproteinase (MT1-MMP), an MMP also involved in transducing NF-κB intracellular signaling pathways, we tested whether STAT3 regulation by MT1-MMP may also contribute to the expression balance of COX-2 in MSC. We demonstrate that STAT3 phosphorylation was triggered in MSC treated with the MT1-MMP inducer lectin Concanavalin-A (ConA), and that this phosphorylation was abrogated by the JAK2 inhibitor AG490. MT1-MMP gene silencing significantly inhibited ConA-induced STAT3 phosphorylation and this was correlated with reduced proMMP-2 activation and COX-2 expression. On the other hand, STAT3 gene silencing potentiated ConA-induced COX-2 expression, providing evidence for a new MT1-MMP/JAK/STAT3 signaling axis that may, in part, explain how MT1-MMP contributes to proinflammatory intracellular signaling. Given that MSC are avidly recruited within inflammatory microenvironments and within experimental vascularizing tumors, these mechanistic observations support a possible dual control of cell adaptation to inflammation by MT1-MMP and that may enable MSC to be active participants within inflamed tissues.
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Affiliation(s)
- Naoufal Akla
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, Quebec, Canada H3C 3P8
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Human umbilical cord Wharton’s jelly stem cells: Immune property genes assay and effect of transplantation on the immune cells of heart failure patients. Cell Immunol 2012; 276:83-90. [DOI: 10.1016/j.cellimm.2012.03.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 12/29/2022]
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Proulx-Bonneau S, Guezguez A, Annabi B. A concerted HIF-1α/MT1-MMP signalling axis regulates the expression of the 3BP2 adaptor protein in hypoxic mesenchymal stromal cells. PLoS One 2011; 6:e21511. [PMID: 21738685 PMCID: PMC3124525 DOI: 10.1371/journal.pone.0021511] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 05/31/2011] [Indexed: 01/01/2023] Open
Abstract
Increased plasticity, migratory and immunosuppressive abilities characterize mesenchymal stromal cells (MSC) which enable them to be active participants in the development of hypoxic solid tumours. Our understanding of the oncogenic adaptation of MSC to hypoxia however lacks the identification and characterization of specific biomarkers. In this study, we assessed the hypoxic regulation of 3BP2/SH3BP2 (Abl SH3-binding protein 2), an immune response adaptor/scaffold protein which regulates leukocyte differentiation and motility. Gene silencing of 3BP2 abrogated MSC migration in response to hypoxic cues and generation of MSC stably expressing the transcription factor hypoxia inducible factor 1alpha (HIF-1α) resulted in increased endogenous 3BP2 expression as well as cell migration. Analysis of the 3BP2 promoter sequence revealed only one potential HIF-1α binding site within the human but none in the murine sequence. An alternate early signalling cascade that regulated 3BP2 expression was found to involve membrane type-1 matrix metalloproteinase (MT1-MMP) transcriptional regulation which gene silencing abrogated 3BP2 expression in response to hypoxia. Collectively, we provide evidence for a concerted HIF-1α/MT1-MMP signalling axis that explains the induction of adaptor protein 3BP2 and which may link protein binding partners together and stimulate oncogenic MSC migration. These mechanistic observations support the potential for malignant transformation of MSC within hypoxic tumour stroma and may contribute to evasion of the immune system by a tumour.
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Affiliation(s)
- Sébastien Proulx-Bonneau
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, Quebec, Canada
| | - Amel Guezguez
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, Quebec, Canada
| | - Borhane Annabi
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, Quebec, Canada
- * E-mail:
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Hocking AM, Gibran NS. Mesenchymal stem cells: paracrine signaling and differentiation during cutaneous wound repair. Exp Cell Res 2010; 316:2213-9. [PMID: 20471978 DOI: 10.1016/j.yexcr.2010.05.009] [Citation(s) in RCA: 269] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 05/07/2010] [Accepted: 05/08/2010] [Indexed: 12/13/2022]
Abstract
Cutaneous wounds persist as a health care crisis in spite of increased understanding of the cellular and molecular responses to injury. Contributing significantly to this crisis is the lack of reliable therapies for treatment of wounds that are slow to heal including chronic wounds and deep dermal wounds that develop hypertrophic scars. This article will review the growing evidence demonstrating the promise of multipotent mesenchymal stem/stromal (MSCs) for the treatment of impaired wound healing. MSCs are often referred to as mesenchymal stem cells despite concerns that these cells are not truly stem cells given the lack of evidence demonstrating self-renewal in vivo. Regardless, abundant evidence demonstrates the therapeutic potential of MSCs for repair and regeneration of damaged tissue due to injury or disease. To date, MSC treatment of acute and chronic wounds results in accelerated wound closure with increased epithelialization, granulation tissue formation and angiogenesis. Although there is evidence for MSC differentiation in the wound, most of the therapeutic effects are likely due to MSCs releasing soluble factors that regulate local cellular responses to cutaneous injury. Important challenges need to be overcome before MSCs can be used effectively to treat wounds that are slow to heal.
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Affiliation(s)
- Anne M Hocking
- University of Washington, Campus Box 359796, 300 9th Avenue, Seattle, WA 98104, USA.
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Tasso R, Pennesi G. When stem cells meet immunoregulation. Int Immunopharmacol 2009; 9:596-8. [PMID: 19539568 DOI: 10.1016/j.intimp.2009.01.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Accepted: 01/22/2009] [Indexed: 12/29/2022]
Abstract
The clinical use of stem cells to prevent tissue injury or reconstruct damaged organs is constrained by different ethical and biological issues. Whereas the use of adult stem cells isolated from differentiated tissues is advantageous from the ethical point of view, the immune response of a host to implants of either embryonic or adult stem cells remains a critical problem. Embryonic stem cells can be rejected by an immunocompetent recipient as well as some types of adult stem cells. There is, however, a population of adult stem cells able to differentiate into the three mesenchymal lineages, osteocytes, chondrocytes, adipocytes that have the additional capacity of modulating the immune response by the activation of disparate mechanisms, among which the generation of antigen-specific CD4(+)CD25(+)FoxP3(+) regulatory T lymphocytes. This short review will focus on the immunological properties of embryonic and adult stem cells are, with particular emphasis on the immunomodulatory function of mesenchymal stem cells and their interactions with regulatory T lymphocytes.
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Affiliation(s)
- Roberta Tasso
- Department of Oncology, Biology, and Genetics, University of Genova, Genova, Italy
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Affiliation(s)
- Magdi Yacoub
- Heart Science Centre, Harefield Hospital, Harefield, Middlesex UB9 6 JH, UK.
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