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Tamarat R, Satyamitra MM, Benderitter M, DiCarlo AL. Radiation-induced gastrointestinal and cutaneous injuries: understanding models, pathologies, assessments, and clinically accepted practices. Int J Radiat Biol 2024; 100:969-981. [PMID: 38787685 DOI: 10.1080/09553002.2024.2356544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024]
Abstract
PURPOSE A U. S. and European joint effort fostering the development of medical countermeasures (MCMs) operable in case of radiological or nuclear emergencies. METHODS Based on the joint engagement between the U.S. National Institute of Allergy and Infectious Diseases (NIAID) and the French Institut de Radioprotection et de Sûreté Nucléaire (IRSN), a Statement of Intent to Collaborate was signed in 2014 and a series of working group meeting were established. In December 2022, the NIAID and IRSN hosted a five-day, U.S./European meeting titled 'Radiation-Induced Cutaneous and Gastrointestinal Injuries: Advances in Understanding Pathologies, Assessment, and Clinically Accepted Practices' in Paris, France. The goals of the meeting were to bring together U.S. and European investigators to explore new research avenues for the medical management of skin and gastrointestinal injuries, including specific diagnostics for each organ system, animal models, and promising medical countermeasures (MCMs) to mitigate radiation damage. There was also an emphasis on exploring additional areas of medicine and response to understand best practices from other emergency scenarios, which could be leveraged to improve radiation preparedness, and the importance of accurate dosimetry in preclinical work. RESULTS Subsequent to the workshop, seven collaborative projects, funded by both organizations, were established on topics ranging from MCMs and predictive biomarkers, and using physical methods to assess cutaneous radiation injuries, to mechanistic studies to understand radiation-induced damage in multiple organ systems. The importance of accurate dosimetry in preclinical works was highlighted and two recently published U.S./European commentaries that focus on the need for dosimetry standardization in the reported literature had their origins in this meeting. This commentary summarizes the workshop and open discussions among academic investigators, industry researchers, and U.S. and IRSN program representatives. CONCLUSIONS Given the substantive progress made due to these interactions, both groups plan to expand out these meetings by incorporating high-level investigators from across the globe, while endeavoring to maintain the informal setting that was conducive to in-depth scientific discussion and enhanced the state of the science in radiation research.
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Affiliation(s)
- Radia Tamarat
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Merriline M Satyamitra
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology, and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - Marc Benderitter
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Andrea L DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology, and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
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2
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Rota Graziosi E, François S, Nasser F, Gauthier M, Oger M, Favier AL, Drouet M, Jullien N, Riccobono D. Comparison of Three Antagonists of Hedgehog Pathway to Promote Skeletal Muscle Regeneration after High Dose Irradiation. Radiat Res 2024; 201:429-439. [PMID: 38253061 DOI: 10.1667/rade-23-00140.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/01/2023] [Indexed: 01/24/2024]
Abstract
The current geopolitical context has brought the radiological nuclear risk to the forefront of concerns. High-dose localized radiation exposure leads to the development of a musculocutaneous radiation syndrome affecting the skin and subcutaneous muscles. Despite the implementation of a gold standard treatment based on an invasive surgical procedure coupled with autologous cell therapy, a muscular defect frequently persists. Targeting the modulation of the Hedgehog (Hh) signaling pathway appears to be a promising therapeutic approach. Activation of this pathway enhances cell survival and promotes proliferation after irradiation, while inhibition by Cyclopamine facilitates differentiation. In this study, we compared the effects of three antagonists of Hh, Cyclopamine (CA), Vismodegib (VDG) and Sonidegib (SDG) on differentiation. A stable cell line of murine myoblasts, C2C12, was exposed to X-ray radiation (5 Gy) and treated with CA, VDG or SDG. Analysis of proliferation, survival (apoptosis), morphology, myogenesis genes expression and proteins production were performed. According to the results, VDG does not have a significant impact on C2C12 cells. SDG increases the expression/production of differentiation markers to a similar extent as CA, while morphologically, SDG proves to be more effective than CA. To conclude, SDG can be used in the same way as CA but already has a marketing authorization with an indication against basal cell cancers, facilitating their use in vivo. This proof of concept demonstrates that SDG represents a promising alternative to CA to promotes differentiation of murine myoblasts. Future studies on isolated and cultured satellite cells and in vivo will test this proof of concept.
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Affiliation(s)
- Emmanuelle Rota Graziosi
- IRBA, French Armed Forces Biomedical Research Institute, Radiobiology unit, Brétigny-sur-Orge, France
| | - Sabine François
- IRBA, French Armed Forces Biomedical Research Institute, Radiobiology unit, Brétigny-sur-Orge, France
- INSERM, UMR1296, Radiations: Defense, Health, Environment, Lyon and Brétigny-sur-Orge, France
| | - Farah Nasser
- IRBA, French Armed Forces Biomedical Research Institute, Radiobiology unit, Brétigny-sur-Orge, France
| | - Michel Gauthier
- IRBA, French Armed Forces Biomedical Research Institute, Radiobiology unit, Brétigny-sur-Orge, France
| | - Myriam Oger
- IRBA, French Armed Forces Biomedical Research Institute, Imagery Unit, Department of Platforms and Technology Research, Brétigny-sur-Orge, France
| | - Anne-Laure Favier
- IRBA, French Armed Forces Biomedical Research Institute, Imagery Unit, Department of Platforms and Technology Research, Brétigny-sur-Orge, France
| | - Michel Drouet
- INSERM, UMR1296, Radiations: Defense, Health, Environment, Lyon and Brétigny-sur-Orge, France
- IRBA, French Armed Forces Biomedical Research Institute, Radiations Bioeffects Department, Brétigny-sur-Orge, France
| | - Nicolas Jullien
- IRBA, French Armed Forces Biomedical Research Institute, Radiobiology unit, Brétigny-sur-Orge, France
| | - Diane Riccobono
- INSERM, UMR1296, Radiations: Defense, Health, Environment, Lyon and Brétigny-sur-Orge, France
- IRBA, French Armed Forces Biomedical Research Institute, Radiations Bioeffects Department, Brétigny-sur-Orge, France
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3
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Ancel L, Gabillot O, Szurewsky C, Granger R, Sache A, Voyer F, Gruel G, Illiano S, Benderitter M, Le Guen B, Souidi M, Benadjaoud MA, Flamant S. microRNA blood signature for localized radiation injury. Sci Rep 2024; 14:2681. [PMID: 38302506 PMCID: PMC10834964 DOI: 10.1038/s41598-024-52258-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/16/2024] [Indexed: 02/03/2024] Open
Abstract
A radiological accident, whether from industrial, medical, or malicious origin, may result in localized exposure to high doses of ionizing radiations, leading to the development of local radiation injury (LRI), that may evolve toward deep ulceration and necrosis of the skin and underlying tissues. Early diagnosis is therefore crucial to facilitate identification and management of LRI victims. Circulating microRNAs (miRNA) have been studied as potential diagnostic biomarkers of several diseases including hematological defects following whole-body irradiation (WBI). This study aims to identify a blood miRNA signature associated with LRI in a preclinical C57BL/6J mouse model of hindlimb irradiation using different 10-MV X-ray doses that lead to injuries of different severities. To this end, we first performed broad-spectrum plasma miRNA profiling, followed by a targeted validation step, on two independent animal cohorts. Using a multivariate sparse partial least square discriminant analysis, we identified a panel of eight circulating miRNAs able to segregate mice according to LRI severity. Interestingly, these miRNAs were previously associated with WBI (miR-150-5p, miR-342-3p, miR-146a-5p), inflammation (miR-18a-5p, miR-148b-3p, miR-532-5p) and skin diseases (miR-139-5p, miR-195-5p). Our results suggest the use of circulating miRNAs as suitable molecular biomarkers for LRI prognosis and diagnosis.
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Affiliation(s)
- Lucie Ancel
- Radiobiology and Regenerative Medicine Research Service, Radiobiology of Accidental Exposure Laboratory, IRSN PSE-SANTE/SERAMED/LRAcc, 31 av de la Division Leclerc, 92260, Fontenay-aux-Roses, France
| | - Olivier Gabillot
- Radiobiology and Regenerative Medicine Research Service, Radiobiology of Accidental Exposure Laboratory, IRSN PSE-SANTE/SERAMED/LRAcc, 31 av de la Division Leclerc, 92260, Fontenay-aux-Roses, France
| | - Chloé Szurewsky
- Radiobiology and Regenerative Medicine Research Service, Radiobiology of Accidental Exposure Laboratory, IRSN PSE-SANTE/SERAMED/LRAcc, 31 av de la Division Leclerc, 92260, Fontenay-aux-Roses, France
| | - Romain Granger
- Ionizing Radiations Biological and Sanitary Effects Research Service, Support Group for Research and Animal Ethic, IRSN PSE-SANTE, Fontenay-aux-Roses, France
| | - Amandine Sache
- Ionizing Radiations Biological and Sanitary Effects Research Service, Support Group for Research and Animal Ethic, IRSN PSE-SANTE, Fontenay-aux-Roses, France
| | - Frédéric Voyer
- Ionizing Radiations Biological and Sanitary Effects Research Service, Support Group for Research and Animal Ethic, IRSN PSE-SANTE, Fontenay-aux-Roses, France
| | - Gaëtan Gruel
- Radiobiology and Regenerative Medicine Research Service, Radiobiology of Accidental Exposure Laboratory, IRSN PSE-SANTE/SERAMED/LRAcc, 31 av de la Division Leclerc, 92260, Fontenay-aux-Roses, France
| | - Stéphane Illiano
- Radiobiology and Regenerative Medicine Research Service, IRSN PSE-SANTE, Fontenay-aux-Roses, France
| | - Marc Benderitter
- Radiobiology and Regenerative Medicine Research Service, IRSN PSE-SANTE, Fontenay-aux-Roses, France
| | | | - Maâmar Souidi
- Radiobiology and Regenerative Medicine Research Service, Radiobiology of Accidental Exposure Laboratory, IRSN PSE-SANTE/SERAMED/LRAcc, 31 av de la Division Leclerc, 92260, Fontenay-aux-Roses, France
| | - Mohamed Amine Benadjaoud
- Radiobiology and Regenerative Medicine Research Service, IRSN PSE-SANTE, Fontenay-aux-Roses, France
| | - Stéphane Flamant
- Radiobiology and Regenerative Medicine Research Service, Radiobiology of Accidental Exposure Laboratory, IRSN PSE-SANTE/SERAMED/LRAcc, 31 av de la Division Leclerc, 92260, Fontenay-aux-Roses, France.
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4
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Průcha J, Šinkorová Z, Carrillo A, Burda T, Čuprová J. Radioreparative Effect of Diode Laser on Leukopoiesis Recovery: A Pilot Study. Life (Basel) 2024; 14:123. [PMID: 38255738 PMCID: PMC10817347 DOI: 10.3390/life14010123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/20/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
The aim of the present study was to investigate the effect of laser therapy on leukopoiesis recovery after irradiation with ionizing radiation. A dose of ionizing radiation was used that induced the hematological form of radiation sickness, reducing the number of blood cells. Subsequently, mice were treated with non-ionizing laser radiation. Based on the examination of the peripheral blood, the study found that laser therapy significantly impacted the number of eosinophils and basophils two weeks after irradiation. Laser therapy also led to the faster reparation of the lymphocyte lineage of white blood cells (WBCs). The research showed that the examined therapeutic laser had a long-term radioreparative effect on gamma-irradiated mice, improving the absolute counts of different lines of WBCs. The results of this study could have implications for the treatment of radiation sickness in humans.
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Affiliation(s)
- Jaroslav Průcha
- Department of Information and Communication Technologies in Medicine, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3105, 272 01 Kladno, Czech Republic; (J.P.); (T.B.)
| | - Zuzana Šinkorová
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Třebešská 1575, 500 02 Hradec Králové, Czech Republic; (Z.Š.); (A.C.)
| | - Anna Carrillo
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Třebešská 1575, 500 02 Hradec Králové, Czech Republic; (Z.Š.); (A.C.)
| | - Tomáš Burda
- Department of Information and Communication Technologies in Medicine, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3105, 272 01 Kladno, Czech Republic; (J.P.); (T.B.)
| | - Julie Čuprová
- Department of Healthcare and Population Protection, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3105, 272 01 Kladno, Czech Republic
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5
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Zhang B, Lai RC, Sim WK, Lim SK. Therapeutic Efficacy of Mesenchymal Stem/Stromal Cell Small Extracellular Vesicles in Alleviating Arthritic Progression by Restoring Macrophage Balance. Biomolecules 2023; 13:1501. [PMID: 37892183 PMCID: PMC10605110 DOI: 10.3390/biom13101501] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint inflammation and damage, often associated with an imbalance in M1/M2 macrophages. Elevated levels of anti-inflammatory M2 macrophages have been linked to a therapeutic response in RA. We have previously demonstrated that mesenchymal stem/stromal cell small extracellular vesicles (MSC-sEVs) promote M2 polarization and hypothesized that MSC-sEVs could alleviate RA severity with a concomitant increase in M2 polarization. Here, we treated a mouse model of collagen-induced arthritis (CIA) with MSC-sEVs. Relative to vehicle-treated CIA mice, both low (1 μg) and high (10 μg) doses of MSC-sEVs were similarly efficacious but not as efficacious as Prednisolone, the positive control. MSC-sEV treatment resulted in statistically significant reductions in disease progression rate and disease severity as measured by arthritic index (AI), anti-CII antibodies, IL-6, and C5b-9 plasma levels. There were no statistically significant differences in the treatment outcome between low (1 μg) and high (10 μg) doses of MSC-sEVs. Furthermore, immunohistochemical analysis revealed that concomitant with the therapeutic efficacy, MSC-sEV treatment increased anti-inflammatory M2 macrophages and decreased pro-inflammatory M1 macrophages in the synovium. Consistent with increased M2 macrophages, histopathological examination also revealed reduced inflammation, pannus formation, cartilage damage, bone resorption, and periosteal new bone formation in the MSC-sEV-treated group compared to the vehicle group. These findings suggest that MSC-sEVs are potential biologic disease-modifying antirheumatic drugs (DMARDs) that can help slow or halt RA joint damage and preserve joint function.
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Affiliation(s)
- Bin Zhang
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore; (B.Z.); (R.C.L.); (W.K.S.)
| | - Ruenn Chai Lai
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore; (B.Z.); (R.C.L.); (W.K.S.)
- Paracrine Therapeutics Pte. Ltd., 10 Choa Chu Kang Grove #13-22 Sol Acres, Singapore 688207, Singapore
| | - Wei Kian Sim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore; (B.Z.); (R.C.L.); (W.K.S.)
| | - Sai Kiang Lim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore; (B.Z.); (R.C.L.); (W.K.S.)
- Paracrine Therapeutics Pte. Ltd., 10 Choa Chu Kang Grove #13-22 Sol Acres, Singapore 688207, Singapore
- Department of Surgery, YLL School of Medicine, National University Singapore (NUS), 5 Lower Kent Ridge Road, Singapore 119074, Singapore
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6
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Hagey DW, Ojansivu M, Bostancioglu BR, Saher O, Bost JP, Gustafsson MO, Gramignoli R, Svahn M, Gupta D, Stevens MM, Görgens A, El Andaloussi S. The cellular response to extracellular vesicles is dependent on their cell source and dose. SCIENCE ADVANCES 2023; 9:eadh1168. [PMID: 37656796 DOI: 10.1126/sciadv.adh1168] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 07/31/2023] [Indexed: 09/03/2023]
Abstract
Extracellular vesicles (EVs) have been established to play important roles in cell-cell communication and shown promise as therapeutic agents. However, we still lack a basic understanding of how cells respond upon exposure to EVs from different cell sources at various doses. Thus, we treated fibroblasts with EVs from 12 different cell sources at doses between 20 and 200,000 per cell, analyzed their transcriptional effects, and functionally confirmed the findings in various cell types in vitro, and in vivo using single-cell RNA sequencing. Unbiased global analysis revealed EV dose to have a more significant effect than cell source, such that high doses down-regulated exocytosis and up-regulated lysosomal activity. However, EV cell source-specific responses were observed at low doses, and these reflected the activities of the EV's source cells. Last, we assessed EV-derived transcript abundance and found that immune cell-derived EVs were most associated with recipient cells. Together, this study provides important insights into the cellular response to EVs.
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Affiliation(s)
- Daniel W Hagey
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Miina Ojansivu
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Beklem R Bostancioglu
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Osama Saher
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Jeremy P Bost
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Manuela O Gustafsson
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Roberto Gramignoli
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - Dhanu Gupta
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
- Department of Paediatrics, University of Oxford, Oxford OX3 7TY, UK
| | - Molly M Stevens
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
- Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering, Imperial College London, London, UK
| | - André Görgens
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Samir El Andaloussi
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge and Karolinska Comprehensive Cancer Center, Stockholm, Sweden
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7
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Lai RC, Tan TT, Sim WK, Zhang B, Lim SK. A roadmap from research to clinical testing of mesenchymal stromal cell exosomes in the treatment of psoriasis. Cytotherapy 2023; 25:815-820. [PMID: 37115163 DOI: 10.1016/j.jcyt.2023.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/01/2023] [Accepted: 03/28/2023] [Indexed: 04/29/2023]
Abstract
The most clinically trialed cells, mesenchymal stromal cells (MSCs), are now known to mainly exert their therapeutic activity through paracrine secretions, which include exosomes. To mitigate potential regulatory concerns on the scalability and reproducibility in the preparations of MSC exosomes, MSC exosomes were produced using a highly characterized MYC-immortalized monoclonal cell line. These cells do not form tumors in athymic nude mice or exhibit anchorage-independent growth, and their exosomes do not carry MYC protein or promote tumor growth. Unlike intra-peritoneal injections, topical applications of MSC exosomes in a mouse model of IMQ-induced psoriasis alleviate interleukin (IL)-17, IL-23 and terminal complement complex, C5b9 in psoriatic skin. When applied on human skin explants, fluorescence from covalently labeled fluorescent MSC exosomes permeated and persisted in the stratum corneum for about 24 hours with negligible exit out of the stratum corneum into the underlying epidermis. As psoriatic stratum corneums are uniquely characterized by activated complements and Munro microabscesses, we postulated that topically applied exosomes permeate the psoriatic stratum corneum to inhibit C5b9 complement complex through CD59, and this inhibition attenuated neutrophil secretion of IL-17. Consistent with this, we demonstrated that assembly of C5b9 on purified human neutrophils induced IL-17 secretion and this induction was abrogated by MSC exosomes, which was in turn abrogated by a neutralizing anti-CD 59 antibody. We thus established the mechanism of action for the alleviation of psoriatic IL-17 by topically applied exosomes.
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Affiliation(s)
- Ruenn Chai Lai
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Thong Teck Tan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Wei Kian Sim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Bin Zhang
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Sai Kiang Lim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore C/O NUHS Tower Block, Singapore, Republic of Singapore.
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8
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Loinard C, Benadjaoud MA, Lhomme B, Flamant S, Baijer J, Tamarat R. Inflammatory cells dynamics control neovascularization and tissue healing after localized radiation induced injury in mice. Commun Biol 2023; 6:571. [PMID: 37248293 DOI: 10.1038/s42003-023-04939-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 05/15/2023] [Indexed: 05/31/2023] Open
Abstract
Local overexposure to ionizing radiation leads to chronic inflammation, vascular damage and cachexia. Here we investigate the kinetics of inflammatory cells from day (D)1 to D180 after mouse hindlimb irradiation and analyze the role of monocyte (Mo) subsets in tissue revascularization. At D1, we find that Mo and T cells are mobilized from spleen and bone marrow to the blood. New vessel formation during early phase, as demonstrated by ~1.4- and 2-fold increased angiographic score and capillary density, respectively, correlates with an increase of circulating T cells, and Mohi and type 1-like macrophages in irradiated muscle. At D90 vascular rarefaction and cachexia are observed, associated with decreased numbers of circulating Molo and Type 2-like macrophages in irradiated tissue. Moreover, CCR2- and CX3CR1-deficency negatively influences neovascularization. However adoptive transfer of Mohi enhances vessel growth. Our data demonstrate the radiation-induced dynamic inflammatory waves and the major role of inflammatory cells in neovascularization.
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Affiliation(s)
- Céline Loinard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France.
| | | | - Bruno Lhomme
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Stéphane Flamant
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | | | - Radia Tamarat
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
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9
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Teo KYW, Zhang S, Loh JT, Lai RC, Hey HWD, Lam KP, Lim SK, Toh WS. Mesenchymal Stromal Cell Exosomes Mediate M2-like Macrophage Polarization through CD73/Ecto-5'-Nucleotidase Activity. Pharmaceutics 2023; 15:pharmaceutics15051489. [PMID: 37242732 DOI: 10.3390/pharmaceutics15051489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/06/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Mesenchymal stem/stromal cell (MSC) exosomes have been shown to alleviate immune dysfunction and inflammation in preclinical animal models. This therapeutic effect is attributed, in part, to their ability to promote the polarization of anti-inflammatory M2-like macrophages. One polarization mechanism has been shown to involve the activation of the MyD88-mediated toll-like receptor (TLR) signaling pathway by the presence of extra domain A-fibronectin (EDA-FN) within the MSC exosomes. Here, we uncovered an additional mechanism where MSC exosomes mediate M2-like macrophage polarization through exosomal CD73 activity. Specifically, we observed that polarization of M2-like macrophages by MSC exosomes was abolished in the presence of inhibitors of CD73 activity, adenosine receptors A2A and A2B, and AKT/ERK phosphorylation. These findings suggest that MSC exosomes promote M2-like macrophage polarization by catalyzing the production of adenosine, which then binds to adenosine receptors A2A and A2B to activate AKT/ERK-dependent signaling pathways. Thus, CD73 represents an additional critical attribute of MSC exosomes in mediating M2-like macrophage polarization. These findings have implications for predicting the immunomodulatory potency of MSC exosome preparations.
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Affiliation(s)
- Kristeen Ye Wen Teo
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, Singapore 119228, Singapore
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore 119085, Singapore
| | - Shipin Zhang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, Singapore 119228, Singapore
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore 119085, Singapore
| | - Jia Tong Loh
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, Singapore 138648, Singapore
| | - Ruenn Chai Lai
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Hwee Weng Dennis Hey
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Kong-Peng Lam
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, Singapore 138648, Singapore
| | - Sai Kiang Lim
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Wei Seong Toh
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, Singapore 119228, Singapore
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore 119085, Singapore
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Singapore 117510, Singapore
- Integrative Sciences and Engineering Program, NUS Graduate School, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 119077, Singapore
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10
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Zhang B, Zhang B, Lai RC, Sim WK, Lam KP, Lim SK. MSC-sEV Treatment Polarizes Pro-Fibrotic M2 Macrophages without Exacerbating Liver Fibrosis in NASH. Int J Mol Sci 2023; 24:ijms24098092. [PMID: 37175803 PMCID: PMC10179074 DOI: 10.3390/ijms24098092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Mesenchymal stem/stromal cell small extracellular vesicles (MSC-sEVs) have shown promise in treating a wide range of animal models of various human diseases, which has led to their consideration for clinical translation. However, the possibility of contraindication for MSC-sEV use is an important consideration. One concern is that MSC-sEVs have been shown to induce M2 macrophage polarization, which is known to be pro-fibrotic, potentially indicating contraindication in fibrotic diseases such as liver fibrosis. Despite this concern, previous studies have shown that MSC-sEVs alleviate high-fat diet (HFD)-induced non-alcoholic steatohepatitis (NASH). To assess whether the pro-fibrotic M2 macrophage polarization induced by MSC-sEVs could worsen liver fibrosis, we first verified that our MSC-sEV preparations could promote M2 polarization in vitro prior to their administration in a mouse model of NASH. Our results showed that treatment with MSC-sEVs reduced or had comparable NAFLD Activity Scores and liver fibrosis compared to vehicle- and Telmisartan-treated animals, respectively. Although CD163+ M2 macrophages were increased in the liver, and serum IL-6 levels were reduced in MSC-sEV treated animals, our data suggests that MSC-sEV treatment was efficacious in reducing liver fibrosis in a mouse model of NASH despite an increase in pro-fibrotic M2 macrophage polarization.
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Affiliation(s)
- Bin Zhang
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Biyan Zhang
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, Immunos, Singapore 138648, Singapore
| | - Ruenn Chai Lai
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Wei Kian Sim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Kong Peng Lam
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, Immunos, Singapore 138648, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, 5 Science Drive 2, Singapore 117545, Singapore
- School of Biological Sciences, College of Science, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Sai Kiang Lim
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
- Department of Surgery, YLL School of Medicine, NUS, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
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11
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Benderitter M, Herrera-Reyes E, Tamarat R. Mesenchymal stromal cells in the regeneration of radiation-induced organ sequelae: will they make the difference? JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2022; 42:024001. [PMID: 35532367 DOI: 10.1088/1361-6498/ac6dd8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
Mesenchymal stromal cells (MSCs) are a stem cell product with good safety that demonstrate significant clinical efficacy in the treatment of different pathologies, including radiation diseases (e.g. radiological burns, pelvic radiation disease). While the first results for some first human applications for the treatment of radiation disease suggest benefit, larger trials with clinically important endpoints are needed before definitive conclusions can be drawn. However, the supply and cost of MSCs remain the two main limitations for this innovative therapeutic product. Exosomes (EXOs), a stem cell product associated with MSC therapy, have shown promising efficacy and safety in humans. MSC-EXO therapeutics represent a promising next-generation approach for treating radiation diseases involving a primary (major) inflammatory component. Provided that conditions for MSC-EXO production and bio-banking are agreed in the near future, the transition to industrial production of MSC-EXOs will be possible, and this is required to initiate well-controlled clinical trials for approval by the European Medicines Agency (EMA) and US Food and Drug Administration (FDA).
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Affiliation(s)
- M Benderitter
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Pôle Santé, 31 Avenue de la Division Leclerc, BP17, Fontenay-aux-Roses 92262, France
| | - E Herrera-Reyes
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Pôle Santé, 31 Avenue de la Division Leclerc, BP17, Fontenay-aux-Roses 92262, France
| | - R Tamarat
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Pôle Santé, 31 Avenue de la Division Leclerc, BP17, Fontenay-aux-Roses 92262, France
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