1
|
Innuan P, Sirikul C, Anukul N, Rolin G, Dechsupa N, Kantapan J. Identifying transcriptomic profiles of iron-quercetin complex treated peripheral blood mononuclear cells from healthy volunteers and diabetic patients. Sci Rep 2024; 14:9441. [PMID: 38658734 PMCID: PMC11043337 DOI: 10.1038/s41598-024-60197-1] [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: 11/03/2023] [Accepted: 04/19/2024] [Indexed: 04/26/2024] Open
Abstract
Peripheral blood is an alternative source of stem/progenitor cells for regenerative medicine owing to its ease of retrieval and blood bank storage. Previous in vitro studies indicated that the conditioned medium derived from peripheral blood mononuclear cells (PBMCs) treated with the iron-quercetin complex (IronQ) contains potent angiogenesis and wound-healing properties. This study aims to unveil the intricate regulatory mechanisms governing the effects of IronQ on the transcriptome profiles of human PBMCs from healthy volunteers and those with diabetes mellitus (DM) using RNA sequencing analysis. Our findings revealed 3741 and 2204 differentially expressed genes (DEGs) when treating healthy and DM PBMCs with IronQ, respectively. Functional enrichment analyses underscored the biological processes shared by the DEGs in both conditions, including inflammatory responses, cell migration, cellular stress responses, and angiogenesis. A comprehensive exploration of these molecular alterations exposed a network of 20 hub genes essential in response to stimuli, cell migration, immune processes, and the mitogen-activated protein kinase (MAPK) pathway. The activation of these pathways enabled PBMCs to potentiate angiogenesis and tissue repair. Corroborating this, quantitative real-time polymerase chain reaction (qRT-PCR) and cell phenotyping confirmed the upregulation of candidate genes associated with anti-inflammatory, pro-angiogenesis, and tissue repair processes in IronQ-treated PBMCs. In summary, combining IronQ and PBMCs brings about substantial shifts in gene expression profiles and activates pathways that are crucial for tissue repair and immune response, which is promising for the enhancement of the therapeutic potential of PBMCs, especially in diabetic wound healing.
Collapse
Affiliation(s)
- Phattarawadee Innuan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chonticha Sirikul
- Division of Transfusion Science, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nampeung Anukul
- Division of Transfusion Science, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Gwenaël Rolin
- INSERM CIC-1431, CHU Besançon, 25000, Besançon, France
| | - Nathupakorn Dechsupa
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
| |
Collapse
|
2
|
Lv C, Hu C, Zhu C, Wan X, Chen C, Ji X, Qin Y, Lu L, Guo X. Empagliflozin alleviates the development of autoimmune myocarditis via inhibiting NF-κB-dependent cardiomyocyte pyroptosis. Biomed Pharmacother 2024; 170:115963. [PMID: 38042114 DOI: 10.1016/j.biopha.2023.115963] [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: 08/24/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023] Open
Abstract
Autoimmune myocarditis, which falls within the broad spectrum of myocarditis, is characterized by an excessive inflammatory response in the heart, and can progress into dilated cardiomyopathy and irreversible heart failure in all possibility. However, effective clinical therapeutics are limited due to its complex inflammatory reactions. Empagliflozin (EMPA) has been previously demonstrated to possess anti-inflammatory properties. This study aimed to determine the improvement effects of EMPA on cardiac dysfunction under the condition of autoimmune myocarditis, and to further investigate the potential mechanisms. In vivo, all male Balb/c mice were randomly divided into four groups: control, experimental autoimmune myocarditis (EAM), EAM+EMPA and EMPA. In vitro, the effects of EMPA on IL-18-stimulated H9C2 cells were explored and the underlying molecular mechanisms were further determined. EMPA treatment significantly inhibited the development of autoimmune myocarditis, and mice treated with EMPA exhibited improved cardiac function compared with that in the EAM group, potentially through modulating pyroptosis of myocardium. Specifically, the NF-κB pathway was activated in the hearts of the EAM mice, which further activated NLRP3 inflammasome-dependent pyroptosis. EMPA treatment significantly inhibited such activation, thus alleviating inflammatory reactions in the context of EAM. Moreover, in vitro, we also observed that EMPA significantly inhibited pyroptosis of IL-18-stimulated H9C2 cells, and reduced nuclear translocation of NF-κB and degradation of activated IκBα. This work provides the first direct evidence that EMPA can inhibit myocardial inflammation and improve cardiac function in EAM mice, partly attributed to the drug-induced suppression of cardiomyocyte pyroptosis via disrupting the NF-κB pathway.
Collapse
Affiliation(s)
- Chao Lv
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Chongqing Hu
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Chuanmeng Zhu
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Xiaoning Wan
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Chen Chen
- Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan 430071, China
| | - Xinyun Ji
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Yating Qin
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China.
| | - Li Lu
- Department of Orthopedics, Union Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
| | - Xiaomei Guo
- Department of Cardiology, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China.
| |
Collapse
|
3
|
Yu M, Tang W, Liang W, Xie B, Gao R, Ding P, Gu X, Wang M, Wen S, Sun P. PCSK9 inhibition ameliorates experimental autoimmune myocarditis by reducing Th17 cell differentiation through LDLR/STAT-3/ROR-γt pathway. Int Immunopharmacol 2023; 124:110962. [PMID: 37776771 DOI: 10.1016/j.intimp.2023.110962] [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: 04/27/2023] [Revised: 08/16/2023] [Accepted: 09/15/2023] [Indexed: 10/02/2023]
Abstract
Proprotein convertase subtilisin kexin type 9 (PCSK9) was characterized as a protein regulating circulating cholesterol metabolism; however, recent studies demonstrated a role for PCSK9 in inflammatory and autoimmune diseases unrelated to cholesterol alterations. The implication of PCSK9 in myocarditis is unclear and we aim at investigating the roles and mechanisms of PCSK9 in myocarditis. Male BALB/c mice received subcutaneous immunization with MyHC-α peptide on days 0 and 7 to establish the experimental autoimmune myocarditis (EAM) model. PCSK9 inhibitor, evolocumab, was administered subcutaneously once a week starting on day 0 and all mice were euthanized on day 21. Our results showed that PCSK9 inhibition ameliorated the cardiac inflammation of EAM mice. PCSK9 inhibition reduced both the levels of cardiac and peripheral blood PCSK9. We found that CD4+ T cells, CD8+ T cells, macrophages, and cardiomyocytes in the heart of EAM mice could express PCSK9. PCSK9 inhibition decreased the differentiation of cardiac Th17 cells by lowering ROR-γt levels but had no effects on Th1, Th2, and Treg cell differentiation. In vitro experiments of CD4+ T cells, we found that PCSK9 directly promoted Th17 cell differentiation through LDLR/STAT3/ROR-γt pathway. Collectively, we demonstrated that PCSK9 inhibition ameliorated the severity of EAM mice by reducing Th17 cell differentiation. PCSK9 is a promising target for treating myocarditis.
Collapse
Affiliation(s)
- Miao Yu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wenjing Tang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wei Liang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Baikang Xie
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ran Gao
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Peiwu Ding
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaoying Gu
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Min Wang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Provincial Engineering Research Center of Immunological Diagnosis and Therapy for Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shuang Wen
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.
| | - Peng Sun
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.
| |
Collapse
|
4
|
Ribeiro RSDA, Demarque KC, Figueiredo Júnior I, Ferreira IMDESR, Valeriano JDP, Verícimo MA. Do Fetal Microchimeric Cells Influence Experimental Autoimmune Myocarditis? Fetal Pediatr Pathol 2022; 41:781-793. [PMID: 34678109 DOI: 10.1080/15513815.2021.1994067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: We investigated the presence and influence of fetal microchimerism in the cardiac tissue of mated female mice submitted to experimental autoimmune myocarditis. Materials and methods: Nulliparous BALB/c females and BALB/c females mated with either BALB/c males (syngeneic mating) or C57BL/6 males (allogeneic mating) were immunized with cardiac myosin peptide MyHC-α614-629 or kept as non-immunized controls. Immunization occurred 6-8 weeks after delivery and mice were assessed after 21 days. Results: Immunized mice of allogeneic mating had a lower production of anti-MyHC-α614-629 antibodies compared to immunized nulliparous mice. Immunized nulliparous females had an intense mononuclear inflammatory infiltrate in cardiac tissue, associated with fibroplasia, while mated females had a lower inflammatory reaction. An increase in the frequency of microchimeric fetal cells was observed in mice submitted to allogeneic mating following immunization. Conclusion: Allogeneic cells of fetal origin could contribute to mitigating the inflammatory response in experimental myocarditis.
Collapse
Affiliation(s)
- Roberto Stefan de Almeida Ribeiro
- Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Brazil.,Graduate Program in Pathology, Federal Fluminense University, Niterói, Brazil
| | | | - Israel Figueiredo Júnior
- Maternal and Child Department, Antônio Pedro University Hospital, Federal Fluminense University, Niterói, Brazil
| | | | - Jessica do Prado Valeriano
- Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Brazil.,Graduate Program in Pathology, Federal Fluminense University, Niterói, Brazil
| | - Maurício Afonso Verícimo
- Department of Immunobiology, Institute of Biology, Federal Fluminense University, Niterói, Brazil.,Graduate Program in Pathology, Federal Fluminense University, Niterói, Brazil
| |
Collapse
|
5
|
Klas K, Ondracek AS, Hofbauer TM, Mangold A, Pfisterer K, Laggner M, Copic D, Direder M, Bormann D, Ankersmit HJ, Mildner M. The Effect of Paracrine Factors Released by Irradiated Peripheral Blood Mononuclear Cells on Neutrophil Extracellular Trap Formation. Antioxidants (Basel) 2022; 11:antiox11081559. [PMID: 36009277 PMCID: PMC9405389 DOI: 10.3390/antiox11081559] [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: 07/29/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/29/2022] Open
Abstract
Neutrophil extracellular trap (NET)-formation represents an important defence mechanism for the rapid clearance of infections. However, exaggerated NET formation has been shown to negatively affect tissue-regeneration after injury. As our previous studies revealed the strong tissue-protective and regenerative properties of the secretome of stressed peripheral blood mononuclear cells (PBMCsec), we here investigated the influence of PBMCsec on the formation of NETs. The effect of PBMCsec on NET formation was assessed ex vivo in ionomycin stimulated neutrophils derived from healthy donors using flow cytometry, image stream analysis, and quantification of released extracellular DNA. The effect of PBMCsec on molecular mechanisms involved in NET formation, including Ca-flux, protein kinase C activity, reactive oxygen species production, and protein arginine deiminase 4 activity, were analysed. Our results showed that PBMCsec significantly inhibited NET formation. Investigation of the different biological substance classes found in PBMCsec revealed only a partial reduction in NET formation, suggesting a synergistic effect. Mechanistically, PBMCsec treatment did not interfere with calcium signalling and PKC-activation, but exerted anti-oxidant activity, as evidenced by reduced levels of reactive oxygen species and upregulation of heme oxygenase 1 and hypoxia inducible-factor 1 in PBMCsec-treated neutrophils. In addition, PBMCsec strongly inhibited the activation of protein arginine deiminase 4 (PAD4), ultimately leading to the inhibition of NET formation. As therapeutics antagonizing excessive NET formation are not currently available, our study provides a promising novel treatment option for a variety of conditions resulting from exaggerated NET formation.
Collapse
Affiliation(s)
- Katharina Klas
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Anna S Ondracek
- Division of Cardiology, Department of Internal Medicine II, Vienna General Hospital, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas M Hofbauer
- Division of Cardiology, Department of Internal Medicine II, Vienna General Hospital, Medical University of Vienna, 1090 Vienna, Austria
| | - Andreas Mangold
- Division of Cardiology, Department of Internal Medicine II, Vienna General Hospital, Medical University of Vienna, 1090 Vienna, Austria
| | - Karin Pfisterer
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Maria Laggner
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Dragan Copic
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Martin Direder
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Daniel Bormann
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Hendrik Jan Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| |
Collapse
|
6
|
Copic D, Direder M, Schossleitner K, Laggner M, Klas K, Bormann D, Ankersmit HJ, Mildner M. Paracrine Factors of Stressed Peripheral Blood Mononuclear Cells Activate Proangiogenic and Anti-Proteolytic Processes in Whole Blood Cells and Protect the Endothelial Barrier. Pharmaceutics 2022; 14:pharmaceutics14081600. [PMID: 36015226 PMCID: PMC9415091 DOI: 10.3390/pharmaceutics14081600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 01/25/2023] Open
Abstract
Tissue-regenerative properties have been attributed to secreted paracrine factors derived from stem cells and other cell types. In particular, the secretome of γ-irradiated peripheral blood mononuclear cells (PBMCsec) has been shown to possess high tissue-regenerative and proangiogenic capacities in a variety of preclinical studies. In light of future therapeutic intravenous applications of PBMCsec, we investigated the possible effects of PBMCsec on white blood cells and endothelial cells lining the vasculature. To identify changes in the transcriptional profile, whole blood was drawn from healthy individuals and stimulated with PBMCsec for 8 h ex vivo before further processing for single-cell RNA sequencing. PBMCsec significantly altered the gene signature of granulocytes (17 genes), T-cells (45 genes), B-cells (72 genes), and, most prominently, monocytes (322 genes). We detected a strong upregulation of several tissue-regenerative and proangiogenic cyto- and chemokines in monocytes, including VEGFA, CXCL1, and CXCL5. Intriguingly, inhibitors of endopeptidase activity, such as SERPINB2, were also strongly induced. Measurement of the trans-endothelial electrical resistance of primary human microvascular endothelial cells revealed a strong barrier-protective effect of PBMCsec after barrier disruption. Together, we show that PBMCsec induces angiogenic and proteolytic processes in the blood and is able to attenuate endothelial barrier damage. These regenerative properties suggest that systemic application of PBMCsec might be a promising novel strategy to restore damaged organs.
Collapse
Affiliation(s)
- Dragan Copic
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (D.C.); (M.D.); (M.L.); (K.K.); (D.B.)
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Martin Direder
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (D.C.); (M.D.); (M.L.); (K.K.); (D.B.)
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Klaudia Schossleitner
- Skin and Endothelium Research Division, Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Maria Laggner
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (D.C.); (M.D.); (M.L.); (K.K.); (D.B.)
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Katharina Klas
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (D.C.); (M.D.); (M.L.); (K.K.); (D.B.)
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Daniel Bormann
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (D.C.); (M.D.); (M.L.); (K.K.); (D.B.)
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (D.C.); (M.D.); (M.L.); (K.K.); (D.B.)
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence: (H.J.A.); (M.M.)
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence: (H.J.A.); (M.M.)
| |
Collapse
|
7
|
Long Q, Li L, Yang H, Lu Y, Yang H, Zhu Y, Tang Y, Liu C, Yuan J. SGLT2 inhibitor, canagliflozin, ameliorates cardiac inflammation in experimental autoimmune myocarditis. Int Immunopharmacol 2022; 110:109024. [PMID: 35841866 DOI: 10.1016/j.intimp.2022.109024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 12/19/2022]
Abstract
Myocarditis is an inflammatory cardiovascular disease which contributes to dilated cardiomyopathy (DCM) and heart failure. Canagliflozin (CANA) exerts anti-inflammatory and cardioprotective effects in heart failure besides its hypoglycemic effect. However, the role of CANA in myocarditis has not been elucidated. In this work, CANA treatment markedly alleviated cardiac inflammation and improved cardiac function in experimental autoimmune myocarditis (EAM) mice induced by α-myosin-heavy chain peptides. The expressions of NLRP3 inflammasome complexes (NLRP3, ASC, and Caspase-1) and their downstream molecules (IL-1β, IL-18) were significantly downregulated by CANA, accompanied with reduced Th17 cell infiltration in hearts. Furthermore, Bax/Bcl-2 ratio, Cleaved Caspase-3 protein level and the percentage of TUNEL-positive myocardial cells, which usually indicated apoptosis, were reduced by CANA treatment. These findings suggest CANA could be a valuable medication for myocarditis treatment.
Collapse
Affiliation(s)
- Qi Long
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Lixia Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongmin Yang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Lu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Yang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaoxi Zhu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaohan Tang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changhu Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Yuan
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
8
|
Laggner M, Acosta GS, Kitzmüller C, Copic D, Gruber F, Altenburger LM, Vorstandlechner V, Gugerell A, Direder M, Klas K, Bormann D, Peterbauer A, Shibuya A, Bohle B, Ankersmit HJ, Mildner M. The secretome of irradiated peripheral blood mononuclear cells attenuates activation of mast cells and basophils. EBioMedicine 2022; 81:104093. [PMID: 35671621 PMCID: PMC9168057 DOI: 10.1016/j.ebiom.2022.104093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 05/11/2022] [Accepted: 05/19/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND IgE-mediated hypersensitivity is becoming increasingly prevalent and activation of mast cells and basophils represent key events in the pathophysiology of allergy. We have previously reported that the secretome of γ-irradiated peripheral blood mononuclear cells (PBMCsec) exerts beneficial anti-inflammatory effects. Yet, its ability to alleviate allergic symptoms has not been investigated so far. METHODS Several experimental in vitro and in vivo models have been used in this basic research study. A murine ear swelling model was used to study the effects of PBMCsec on 48/80-induced mast cell degranulation in vivo. The transcriptional profile of murine mast cells was analysed by single cell RNA sequencing (scRNAseq). Mast cell activation was studied in vitro using primary skin mast cells. Basophils from individuals allergic to birch pollens were used to investigate basophile activation by allergens. Transcriptomic and lipidomic analyses were used to identify mRNA expression and lipid species present in PBMCsec, respectively. FINDINGS Topical application of PBMCsec on mouse ears (C57BL/6) significantly reduced tissue swelling following intradermal injection of compound 48/80, an inducer of mast cell degranulation. Single cell RNA sequencing of PBMCsec-treated murine dermal mast cells (Balb/c) revealed a downregulation of genes involved in immune cell degranulation and Fc-receptor signalling. In addition, treatment of primary human dermal mast cells with PBMCsec strongly inhibited compound 48/80- and α-IgE-induced mediator release in vitro. Furthermore, PBMCsec remarkably attenuated allergen driven activation of basophils from allergic individuals. Transcriptomic analysis of these basophils showed that PBMCsec downregulated a distinct gene battery involved in immune cell degranulation and Fc-receptor signalling, corroborating results obtained from dermal mast cells. Finally, we identified the lipid fraction of PBMCsec as the major active ingredient involved in effector cell inhibition. INTERPRETATION Collectively, our data demonstrate that PBMCsec is able to reduce activation of mast cells and basophils, encouraging further studies on the potential use of PBMCsec for treating allergy. FUNDING Austrian Research Promotion Agency (852748 and 862068, 2015-2019), Vienna Business Agency (2343727, 2018-2020), Aposcience AG, Austrian Federal Ministry of Education, Science and Research (SPA06/055), Danube Allergy Research Cluster, Austrian Science Fund (I4437 and P32953).
Collapse
Affiliation(s)
- Maria Laggner
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria
| | - Gabriela Sánchez Acosta
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Claudia Kitzmüller
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Dragan Copic
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria
| | - Florian Gruber
- Department of Dermatology, Medical University of Vienna, Lazarettgasse 14, 1090 Vienna, Austria
| | | | - Vera Vorstandlechner
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria; Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Vienna, Vienna, Austria
| | - Alfred Gugerell
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria
| | - Martin Direder
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria
| | - Katharina Klas
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria
| | - Daniel Bormann
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria
| | - Anja Peterbauer
- Aposcience AG, Vienna, Austria; Austrian Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Akira Shibuya
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Barbara Bohle
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria; Aposcience AG, Vienna, Austria.
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Lazarettgasse 14, 1090 Vienna, Austria.
| |
Collapse
|
9
|
Secretome of Stressed Peripheral Blood Mononuclear Cells Alters Transcriptome Signature in Heart, Liver, and Spleen after an Experimental Acute Myocardial Infarction: An In Silico Analysis. BIOLOGY 2022; 11:biology11010116. [PMID: 35053121 PMCID: PMC8772778 DOI: 10.3390/biology11010116] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 12/21/2022]
Abstract
Simple Summary Acute myocardial infarction is characterized by impaired coronary blood flow, which leads to cardiac ischemia and, ultimately, compromised heart function. Damage and cellular responses are not limited to the non-perfused area, but rather affect the entire heart, as well as distal organs, such as the liver and spleen. We found that the therapeutic secretome of stressed white blood cells improved short-term and long-term cardiac performance in a porcine infarction model. In order to unravel the molecular events governing secretome-mediated tissue regeneration, we performed transcriptional analyses of the non-perfused, transition, and perfused heart, as well as the liver and spleen 24 h after myocardial infarction. We observed a highly tissue-specific effect of the secretome and, except for the transition zone, a uniform downregulation of pro-inflammatory factors and pathways. Simultaneously, the secretome strongly promoted the expression of genes that are essential for heart function in the non-perfused area. In the liver and spleen, different metabolic processes were induced. Together, our data suggest several plausible mechanisms by which the secretome improves heart function after cardiac ischemia. Deepening our understanding of the molecular processes identified here might uncover further pharmacologic strategies aiming at delimiting adverse cardiac remodeling and sequelae after myocardial infarction. Abstract Acute myocardial infarction (AMI) is a result of cardiac non-perfusion and leads to cardiomyocyte necrosis, inflammation, and compromised cardiac performance. Here, we showed that the secretome of γ-irradiated peripheral blood mononuclear cells (PBMCsec) improved heart function in a porcine AMI model and displayed beneficial long- and short-term effects. As an AMI is known to strongly affect gene regulation of the ischemia non-affected heart muscle and distal organs, we employed a transcriptomics approach to further study the immediate molecular events orchestrated using the PBMCsec in myocardium, liver, and spleen 24 h post ischemia. In the infarcted area, the PBMCsec mainly induced genes that were essential for cardiomyocyte function and simultaneously downregulated pro-inflammatory genes. Interestingly, genes associated with pro-inflammatory processes were activated in the transition zone, while being downregulated in the remote zone. In the liver, we observed a pronounced inhibition of immune responses using the PBMCsec, while genes involved in urea and tricarboxylic cycles were induced. The spleen displayed elevated lipid metabolism and reduced immunological processes. Together, our study suggested several types of pharmacodynamics by which the PBMCsec conferred immediate cardioprotection. Furthermore, our data supported the assumption that an AMI significantly affects distal organs, suggesting that a holistic treatment of an AMI, as achieved by PBMCsec, might be highly beneficial.
Collapse
|
10
|
Liang W, Xie BK, Ding PW, Wang M, Yuan J, Cheng X, Liao YH, Yu M. Sacubitril/Valsartan Alleviates Experimental Autoimmune Myocarditis by Inhibiting Th17 Cell Differentiation Independently of the NLRP3 Inflammasome Pathway. Front Pharmacol 2021; 12:727838. [PMID: 34603042 PMCID: PMC8479108 DOI: 10.3389/fphar.2021.727838] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/03/2021] [Indexed: 12/11/2022] Open
Abstract
Sacubitril/valsartan (Sac/Val) is a recently approved drug that is commonly used for treatment of heart failure. Several studies indicated that Sac/Val also regulated the secretion of inflammatory factors. However, the effect and mechanism of this drug modulation of inflammatory immune responses are uncertain. In this study, an experimental autoimmune myocarditis (EAM) mouse model was established by injection of α-myosin-heavy chain peptides. The effect of oral Sac/Val on EAM was evaluated by histological staining of heart tissues, measurements of cardiac troponin T and inflammatory markers (IL-6 and hsCRP). The effects of Sac/Val on NLRP3 inflammasome activation and Th1/Th17 cell differentiation were also determined. To further explore the signaling pathways, the expressions of cardiac soluble guanylyl cyclase (sGC) and NF-κB p65 were investigated. The results showed that Sac/Val downregulated the inflammatory response and attenuated the severity of EAM, but did not influence NLRP3 inflammasomes activation. Moreover, Sac/Val treatment inhibited cardiac Th17 cell differentiation, and this might be associated with sGC/NF-κB p65 signaling pathway. These findings indicate the potential use of Sac/Val for treatment of myocarditis.
Collapse
Affiliation(s)
- Wei Liang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bai-Kang Xie
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pei-Wu Ding
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Wang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Yuan
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu-Hua Liao
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Miao Yu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
11
|
Wu Y, Zheng Z, Cao X, Yang Q, Norton V, Adini A, Maiti AK, Adini I, Wu H. RIP1/RIP3/MLKL Mediates Myocardial Function Through Necroptosis in Experimental Autoimmune Myocarditis. Front Cardiovasc Med 2021; 8:696362. [PMID: 34497836 PMCID: PMC8419468 DOI: 10.3389/fcvm.2021.696362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/22/2021] [Indexed: 12/23/2022] Open
Abstract
Cardiomyopathy often leads to dilated cardiomyopathy (DCM) when caused by viral myocarditis. Apoptosis is long considered as the principal process of cell death in cardiomyocytes, but programmed necrosis or necroptosis is recently believed to play an important role in cardiomyocyte cell death. We investigated the role of necroptosis and its interdependency with other processes of cell death, autophagy, and apoptosis in a rat system of experimental autoimmune myocarditis (EAM). We successfully created a rat model system of EAM by injecting porcine cardiac myosin (PCM) and showed that in EAM, all three forms of cell death increase considerably, resulting in the deterioration of cardiac conditions with an increase in inflammatory infiltration in cardiomyocytes. To explore whether necroptosis occurs in EAM rats independent of autophagy, we treated EAM rats with a RIP1/RIP3/MLKL kinase-mediated necroptosis inhibitor, Necrostatin-1 (Nec-1). In Nec-1 treated rats, cell death proceeds through apoptosis but has no significant effect on autophagy. In contrast, autophagy inhibitor 3-Methyl Adenine (3-MA) increases necroptosis, implying that blockage of autophagy must be compensated through necroptosis. Caspase 8 inhibitor zVAD-fmk blocks apoptosis but increases both necroptosis and autophagy. However, all necroptosis, apoptosis, and autophagy inhibitors independently reduce inflammatory infiltration in cardiomyocytes and improve cardiac conditions. Since apoptosis or autophagy is involved in many important cellular aspects, instead of suppressing these two major cell death processes, Nec1 can be developed as a potential therapeutic target for inflammatory myocarditis.
Collapse
Affiliation(s)
- Yujing Wu
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Cardiology, Jiangxi Hypertension Research Institute, Nanchang, China.,Department of Emergency, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhenzhong Zheng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Cardiology, Jiangxi Hypertension Research Institute, Nanchang, China
| | - Xiantong Cao
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qing Yang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Department of Cardiology, Jiangxi Hypertension Research Institute, Nanchang, China
| | - Vikram Norton
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, United States
| | - Avner Adini
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, United States
| | - Amit K Maiti
- Mydnavar, Department of Genetics and Genomics, Troy, MI, United States
| | - Irit Adini
- Center for Engineering in Medicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA, United States
| | - Hao Wu
- Vascular Biology Program, Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, United States
| |
Collapse
|
12
|
Hacker S, Mittermayr R, Traxler D, Keibl C, Resch A, Salminger S, Leiss H, Hacker P, Gabriel C, Golabi B, Pauzenberger R, Slezak P, Laggner M, Mildner M, Michlits W, Ankersmit HJ. The secretome of stressed peripheral blood mononuclear cells increases tissue survival in a rodent epigastric flap model. Bioeng Transl Med 2021; 6:e10186. [PMID: 33532586 PMCID: PMC7823127 DOI: 10.1002/btm2.10186] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 12/13/2022] Open
Abstract
Reconstructive surgery transfers viable tissue to cover defects and to restore aesthetic and functional properties. Failure rates after free flap surgery range from 3 to 7%. Co-morbidities such as diabetes mellitus or peripheral vascular disease increase the risk of flap failure up to 4.5-fold. Experimental therapeutic concepts commonly use a monocausal approach by applying single growth factors. The secretome of γ-irradiated, stressed peripheral blood mononuclear cells (PBMCsec) resembles the physiological environment necessary for tissue regeneration. Its application led to improved wound healing rates and a two-fold increase in blood vessel counts in previous animal models. We hypothesized that PBMCsec has beneficial effects on the survival of compromised flap tissue by reducing the necrosis rate and increasing angiogenesis. Surgery was performed on 39 male Sprague-Dawley rats (control, N = 13; fibrin sealant, N = 14; PBMCsec, N = 12). PBMCsec was produced according to good manufacturing practices (GMP) guidelines and 2 ml were administered intraoperatively at a concentration of 2.5 × 107 cells/ml using fibrin sealant as carrier substance. Flap perfusion and necrosis (as percentage of the total flap area) were analyzed using Laser Doppler Imaging and digital image planimetry on postoperative days 3 and 7. Immunohistochemical stainings for von Willebrand factor (vWF) and Vascular Endothelial Growth Factor-receptor-3 (Flt-4) were performed on postoperative day 7 to evaluate formation of blood vessels and lymphatic vessels. Seroma formation was quantified using a syringe and flap adhesion and tissue edema were evaluated clinically through a cranial incision by a blinded observer according to previously described criteria on postoperative day 7. We found a significantly reduced tissue necrosis rate (control: 27.8% ± 8.6; fibrin: 22.0% ± 6.2; 20.9% reduction, p = .053 vs. control; PBMCsec: 19.1% ± 7.2; 31.1% reduction, p = .012 vs. control; 12.9% reduction, 0.293 vs. fibrin) together with increased vWF+ vessel counts (control: 70.3 ± 16.3 vessels/4 fields at 200× magnification; fibrin: 67.8 ± 12.1; 3.6% reduction, p = .651, vs. control; PBMCsec: 85.9 ± 20.4; 22.2% increase, p = .045 vs. control; 26.7% increase, p = .010 vs. fibrin) on postoperative day 7 after treatment with PBMCsec. Seroma formation was decreased after treatment with fibrin sealant with or without the addition of PBMCsec. (control: 11.9 ± 9.7 ml; fibrin: 1.7 ± 5.3, 86.0% reduction, 0.004 vs. control; PBMCsec: 0.6 ± 2.0; 94.8% reduction, p = .001 vs. control; 62.8% reduction, p = .523 vs. fibrin). We describe the beneficial effects of a secretome derived from γ-irradiated PBMCs on tissue survival, angiogenesis, and clinical parameters after flap surgery in a rodent epigastric flap model.
Collapse
Affiliation(s)
- Stefan Hacker
- Division of Plastic and Reconstructive SurgeryMedical University of ViennaViennaAustria
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and RegenerationViennaAustria
| | - Rainer Mittermayr
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyViennaAustria
| | - Denise Traxler
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and RegenerationViennaAustria
| | - Claudia Keibl
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyViennaAustria
| | - Annika Resch
- Division of Plastic and Reconstructive SurgeryMedical University of ViennaViennaAustria
| | - Stefan Salminger
- Division of Plastic and Reconstructive SurgeryMedical University of ViennaViennaAustria
| | - Harald Leiss
- Division of RheumatologyMedical University of ViennaViennaAustria
| | - Philipp Hacker
- Department of Oral‐ and Maxillofacial SurgeryUniversity Clinic Sankt PoeltenSankt PoeltenAustria
| | - Christian Gabriel
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyViennaAustria
- Department of Blood Group Serology and Transfusion MedicineMedical University of GrazAustria
| | - Bahar Golabi
- Department of DermatologyMedical University of ViennaViennaAustria
| | - Reinhard Pauzenberger
- Division of Plastic and Reconstructive SurgeryMedical University of ViennaViennaAustria
| | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyViennaAustria
| | - Maria Laggner
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and RegenerationViennaAustria
| | - Michael Mildner
- Department of DermatologyMedical University of ViennaViennaAustria
| | - Wolfgang Michlits
- Department of Plastic and Reconstructive SurgeryHospital Wiener NeustadtWiener NeustadtAustria
| | - Hendrik J. Ankersmit
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and RegenerationViennaAustria
- Division of Thoracic SurgeryMedical University of ViennaViennaAustria
| |
Collapse
|
13
|
TGF-β in the Secretome of Irradiated Peripheral Blood Mononuclear Cells Supports In Vitro Osteoclastogenesis. Int J Mol Sci 2020; 21:ijms21228569. [PMID: 33202935 PMCID: PMC7696998 DOI: 10.3390/ijms21228569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/02/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023] Open
Abstract
Osteoclastogenesis required for bone remodeling is also a key pathologic mechanism of inflammatory osteolysis being controlled by paracrine factors released from dying cells. The secretome of irradiated, dying peripheral blood mononuclear cells (PBMCs) has a major impact on the differentiation of myeloid cells into dendritic cells, and macrophage polarization. The impact on osteoclastogenesis, however, has not been reported. For this aim, we used murine bone marrow macrophages exposed to RANKL and M-CSF to initiate osteoclastogenesis, with and without the secretome obtained from γ-irradiated PBMCs. We reported that the secretome significantly enhanced in vitro osteoclastogenesis as determined by means of histochemical staining of the tartrate-resistant acid phosphatase (TRAP), as well as the expression of the respective target genes, including TRAP and cathepsin K. Considering that TGF-β enhanced osteoclastogenesis, we confirmed the TGF-β activity in the secretome with a bioassay that was based on the increased expression of IL11 in fibroblasts. Neutralizing TGF-β by an antibody decreased the ability of the secretome to support osteoclastogenesis. These findings suggested that TGF-β released by irradiated PBMCs could enhance the process of osteoclastogenesis in vitro.
Collapse
|
14
|
Haque N, Fareez IM, Fong LF, Mandal C, Kasim NHA, Kacharaju KR, Soesilawati P. Role of the CXCR4-SDF1-HMGB1 pathway in the directional migration of cells and regeneration of affected organs. World J Stem Cells 2020. [DOI: 10.4252/wjsc.v12.i9.0000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
|
15
|
Haque N, Fareez IM, Fong LF, Mandal C, Abu Kasim NH, Kacharaju KR, Soesilawati P. Role of the CXCR4-SDF1-HMGB1 pathway in the directional migration of cells and regeneration of affected organs. World J Stem Cells 2020; 12:938-951. [PMID: 33033556 PMCID: PMC7524697 DOI: 10.4252/wjsc.v12.i9.938] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/18/2020] [Accepted: 07/19/2020] [Indexed: 02/06/2023] Open
Abstract
In recent years, several studies have reported positive outcomes of cell-based therapies despite insufficient engraftment of transplanted cells. These findings have created a huge interest in the regenerative potential of paracrine factors released from transplanted stem or progenitor cells. Interestingly, this notion has also led scientists to question the role of proteins in the secretome produced by cells, tissues or organisms under certain conditions or at a particular time of regenerative therapy. Further studies have revealed that the secretomes derived from different cell types contain paracrine factors that could help to prevent apoptosis and induce proliferation of cells residing within the tissues of affected organs. This could also facilitate the migration of immune, progenitor and stem cells within the body to the site of inflammation. Of these different paracrine factors present within the secretome, researchers have given proper consideration to stromal cell-derived factor-1 (SDF1) that plays a vital role in tissue-specific migration of the cells needed for regeneration. Recently researchers recognized that SDF1 could facilitate site-specific migration of cells by regulating SDF1-CXCR4 and/or HMGB1-SDF1-CXCR4 pathways which is vital for tissue regeneration. Hence in this study, we have attempted to describe the role of different types of cells within the body in facilitating regeneration while emphasizing the HMGB1-SDF1-CXCR4 pathway that orchestrates the migration of cells to the site where regeneration is needed.
Collapse
Affiliation(s)
- Nazmul Haque
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Selangor 42610, Malaysia
| | - Ismail M Fareez
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Selangor 42610, Malaysia
| | - Liew Fong Fong
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, Selangor 42610, Malaysia
| | - Chanchal Mandal
- Biotechnology and Genetic Engineering Discipline, Life Science, Khulna University, Khulna 9208, Bangladesh
| | - Noor Hayaty Abu Kasim
- Faculty of Dentistry, University Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
- Faculty of Dental Medicine, Universitas Airlangga, Surabaya 411007, Indonesia
| | - Kranthi Raja Kacharaju
- Department of Conservative Dentistry, Faculty of Dentistry MAHSA University, Selangor 42610, Malaysia
| | - Pratiwi Soesilawati
- Department of Oral Biology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| |
Collapse
|
16
|
Sun P, Wang N, Zhao P, Wang C, Li H, Chen Q, Mang G, Wang W, Fang S, Du G, Zhang M, Tian J. Circulating Exosomes Control CD4 + T Cell Immunometabolic Functions via the Transfer of miR-142 as a Novel Mediator in Myocarditis. Mol Ther 2020; 28:2605-2620. [PMID: 32882180 DOI: 10.1016/j.ymthe.2020.08.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 07/13/2020] [Accepted: 08/19/2020] [Indexed: 12/29/2022] Open
Abstract
CD4+ T cells undergo immunometabolic activation to mount an immunogenic response during experimental autoimmune myocarditis (EAM). Exosomes are considered key messengers mediating multiple T cell functions in autoimmune responses. However, the role of circulating exosomes in EAM immunopathogenesis and CD4+ T cell dysfunction remains elusive. Our objective was to elucidate the mechanism of action for circulating exosomes in EAM pathogenesis. We found that serum exosomes harvested from EAM mice induced CD4+ T cell immunometabolic dysfunction. Treatment with the exosome inhibitor GW4869 protected mice from developing EAM, underlying that exosomes are indispensable for the pathogenesis of EAM. Furthermore, by transfer of EAM exosomes, we confirmed that circulating exosomes initiate the T cell pathological immune response, driving the EAM pathological process. Mechanistically, EAM-circulating exosomes selectively loaded abundant microRNA (miR)-142. We confirmed methyl-CpG binding domain protein 2 (MBD2) and suppressor of cytokine signaling 1 (SOCS1) as functional target genes of miR-142. The miR-142/MBD2/MYC and miR-142/SOCS1 communication axes are critical to exosome-mediated immunometabolic turbulence. Moreover, the in vivo injection of the miR-142 inhibitor alleviated cardiac injury in EAM mice. This effect was abrogated by pretreatment with EAM exosomes. Collectively, our results indicate a newly endogenous mechanism whereby circulating exosomes regulate CD4+ T cell immunometabolic dysfunction and EAM pathogenesis via cargo miR-142.
Collapse
Affiliation(s)
- Ping Sun
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Naixin Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Peng Zhao
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Chao Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Hairu Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Qi Chen
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ge Mang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Weiwei Wang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shaohong Fang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Guoqing Du
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Maomao Zhang
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China; Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Jiawei Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
| |
Collapse
|
17
|
Panahipour L, Kochergina E, Laggner M, Zimmermann M, Mildner M, Ankersmit HJ, Gruber R. Role for Lipids Secreted by Irradiated Peripheral Blood Mononuclear Cells in Inflammatory Resolution in Vitro. Int J Mol Sci 2020; 21:ijms21134694. [PMID: 32630157 PMCID: PMC7370068 DOI: 10.3390/ijms21134694] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/24/2020] [Accepted: 06/28/2020] [Indexed: 12/18/2022] Open
Abstract
Periodontal inflammation is associated with dying cells that potentially release metabolites helping to promote inflammatory resolution. We had shown earlier that the secretome of irradiated, dying peripheral blood mononuclear cells support in vitro angiogenesis. However, the ability of the secretome to promote inflammatory resolution remains unknown. Here, we determined the expression changes of inflammatory cytokines in murine bone marrow macrophages, RAW264.7 cells, and gingival fibroblasts exposed to the secretome obtained from γ-irradiated peripheral blood mononuclear cells in vitro by RT-PCR and immunoassays. Nuclear translocation of p65 was detected by immunofluorescence staining. Phosphorylation of p65 and degradation of IκB was determined by Western blot. The secretome of irradiated peripheral blood mononuclear cells significantly decreased the expression of IL1 and IL6 in primary macrophages and RAW264.7 cells when exposed to LPS or saliva, and of IL1, IL6, and IL8 in gingival fibroblasts when exposed to IL-1β and TNFα. These changes were associated with decreased phosphorylation and nuclear translocation of p65 but not degradation of IκB in macrophages. We also show that the lipid fraction of the secretome lowered the inflammatory response of macrophages exposed to the inflammatory cues. These results demonstrate that the secretome of irradiated peripheral blood mononuclear cells can lower an in vitro simulated inflammatory response, supporting the overall concept that the secretome of dying cells promotes inflammatory resolution.
Collapse
Affiliation(s)
- Layla Panahipour
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090 Vienna, Austria; (L.P.); (E.K.)
| | - Evgeniya Kochergina
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090 Vienna, Austria; (L.P.); (E.K.)
| | - Maria Laggner
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Währingergürtel 18-20, 1090 Vienna, Austria; (M.L.); (H.J.A.)
- Division of Thoracic Surgery, Medical University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria
| | - Matthias Zimmermann
- Department of Oral and Maxillofacial Surgery, Medical University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria;
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria;
| | - Hendrik J. Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Währingergürtel 18-20, 1090 Vienna, Austria; (M.L.); (H.J.A.)
- Division of Thoracic Surgery, Medical University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria
| | - Reinhard Gruber
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090 Vienna, Austria; (L.P.); (E.K.)
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010 Bern, Switzerland
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, 1200 Vienna, Austria
- Correspondence:
| |
Collapse
|
18
|
Laggner M, Copic D, Nemec L, Vorstandlechner V, Gugerell A, Gruber F, Peterbauer A, Ankersmit HJ, Mildner M. Therapeutic potential of lipids obtained from γ-irradiated PBMCs in dendritic cell-mediated skin inflammation. EBioMedicine 2020; 55:102774. [PMID: 32403085 PMCID: PMC7218268 DOI: 10.1016/j.ebiom.2020.102774] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/08/2020] [Accepted: 04/15/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Since numerous pathological conditions are evoked by unwanted dendritic cell (DC) activity, therapeutic agents modulating DC functions are of great medical interest. In regenerative medicine, cellular secretomes have gained increasing attention and valuable immunomodulatory properties have been attributed to the secretome of γ-irradiated peripheral blood mononuclear cells (PBMCs). Potential effects of the PBMC secretome (PBMCsec) on key DC functions have not been elucidated so far. METHODS We used a hapten-mediated murine model of contact hypersensitivity (CH) to study the effects of PBMCsec on DCs in vivo. Effects of PBMCsec on human DCs were investigated in monocyte-derived DCs (MoDC) and ex vivo skin cultures. DCs were phenotypically characterised by transcriptomics analyses and flow cytometry. DC function was evaluated by cytokine secretion, antigen uptake, PBMC proliferation and T-cell priming. FINDINGS PBMCsec significantly alleviated tissue inflammation and cellular infiltration in hapten-sensitized mice. We found that PBMCsec abrogated differentiation of MoDCs, indicated by lower expression of classical DC markers CD1a, CD11c and MHC class II molecules. Furthermore, PBMCsec reduced DC maturation, antigen uptake, lipopolysaccharides-induced cytokine secretion, and DC-mediated immune cell proliferation. Moreover, MoDCs differentiated with PBMCsec displayed diminished ability to prime naïve CD4+T-cells into TH1 and TH2 cells. Furthermore, PBMCsec modulated the phenotype of DCs present in the skin in situ. Mechanistically, we identified lipids as the main biomolecule accountable for the observed immunomodulatory effects. INTERPRETATION Together, our data describe DC-modulatory actions of lipids secreted by stressed PBMCs and suggest PBMCsec as a therapeutic option for treatment of DC-mediated inflammatory skin conditions. FUNDING This research project was supported by the Austrian Research Promotion Agency (Vienna, Austria; grant "APOSEC" 862068; 2015-2019) and the Vienna Business Agency (Vienna, Austria; grant "APOSEC to clinic" 2343727).
Collapse
Affiliation(s)
- Maria Laggner
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Vienna, Austria; Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Dragan Copic
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Vienna, Austria; Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Lucas Nemec
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Lazarettgasse 14, 1090 Vienna, Austria
| | - Vera Vorstandlechner
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Vienna, Austria; Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Alfred Gugerell
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Vienna, Austria; Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Florian Gruber
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Lazarettgasse 14, 1090 Vienna, Austria
| | - Anja Peterbauer
- Austrian Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Hendrik J Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Vienna, Austria; Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Lazarettgasse 14, 1090 Vienna, Austria.
| |
Collapse
|
19
|
Mirna M, Paar V, Kraus T, Sotlar K, Wernly B, Pistulli R, Hoppe UC, Lichtenauer M. Autoimmune myocarditis is not associated with left ventricular systolic dysfunction. Eur J Clin Invest 2019; 49:e13132. [PMID: 31125424 PMCID: PMC6771695 DOI: 10.1111/eci.13132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/26/2019] [Accepted: 05/21/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Experimental autoimmune myocarditis (EAM) is a common animal model for the investigation of the pathophysiology of myocarditis. Because of diverging findings from previous studies, we performed serial echocardiographic examinations throughout the course of the disease and investigated the dimensions of the murine heart and left ventricular (LV) systolic function. MATERIALS AND METHODS Experimental autoimmune myocarditis was induced in male Balb/c mice by subcutaneous injection of a fragment of the α-myosin heavy chain (MyHC-α 614-629: Ac-SLKLMATLFSTYASAD). Transthoracic echocardiography was performed on days 0, 7 and 21 in healthy animals and mice with EAM. RESULTS Experimental autoimmune myocarditis was associated with a reduction in LV systolic function and an increase in LV internal diameter in diastole (LVIDd) and systole (LVIDs) 7 days postimmunization. After 21 days, EAM led to a significant increase in LV-thickness (1.3-fold increase in LV anterior wall diameter in diastole [LVAWDd]), but there was no difference in LV systolic function between immunized animals and healthy controls. LV-thickness correlated well with the severity of myocarditis in the histopathological examination (LVAWDd: rs = 0.603, P = 0.003, LV anterior wall diameter in systole (LVAWDs): rs = 0.718, P < 0.0001). CONCLUSION Our results indicate that EAM leads to an initial dilatation of the LV that is followed by ventricular "hypertrophy." On day 21, there was no significant difference in LV systolic function between immunized animals and controls. Furthermore, the ageing of the animals had a major impact on the echocardiographic parameters; therefore, the use of healthy age-matched controls seems warranted when echocardiography is performed in rodents.
Collapse
Affiliation(s)
- Moritz Mirna
- Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Vera Paar
- Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Theo Kraus
- Institute of Pathology, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Karl Sotlar
- Institute of Pathology, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Bernhard Wernly
- Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Rudin Pistulli
- Department of Cardiology I, Coronary and Peripheral Vascular Diseases, Heart Failure, University Hospital Münster, Münster, Germany
| | - Uta C Hoppe
- Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Michael Lichtenauer
- Department of Cardiology, Clinic of Internal Medicine II, Paracelsus Medical University of Salzburg, Salzburg, Austria
| |
Collapse
|
20
|
Wuschko S, Gugerell A, Chabicovsky M, Hofbauer H, Laggner M, Erb M, Ostler T, Peterbauer A, Suessner S, Demyanets S, Leuschner J, Moser B, Mildner M, Ankersmit HJ. Toxicological testing of allogeneic secretome derived from peripheral mononuclear cells (APOSEC): a novel cell-free therapeutic agent in skin disease. Sci Rep 2019; 9:5598. [PMID: 30944367 PMCID: PMC6447581 DOI: 10.1038/s41598-019-42057-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 03/19/2019] [Indexed: 12/19/2022] Open
Abstract
A cell-free approach using secretomes derived from stem cells or peripheral blood mononuclear cells is an active area of regenerative medicine that holds promise for therapies. Regulatory authorities classify these secretomes as biological medicinal products, and non- clinical safety assessment thus falls under the scope of ICH S6. A secretome of stressed peripheral blood mononuclear cells (APOSEC) was successfully tested in a toxicology program, supporting clinical use of the new drug candidate. Here, to allow for topical, dermal treatment of patients with diabetic foot ulcer, several non-clinical safety studies were performed. Acute toxicity (single dose) and neuropharmacological screening were tested intravenously in a rat model. Risk for skin sensitisation was tested in mice. A 4-week intravenous toxicity study in mice and a 4-week subcutaneous toxicity study in minipigs were conducted to cover the clinical setting and application in a rodent and a non-rodent model. Acute and repeated-dose toxicity studies show that APOSEC administered intravenously and subcutaneously does not involve major toxicities or signs of local intolerance at levels above the intended total human maximal dose of 3.3 U/kg/treatment, 200 U/wound/treatment, and 100 U/cm2/treatment. The non-clinical data support the safe topical use of APOSEC in skin diseases related to deficient wound healing.
Collapse
Affiliation(s)
- Silvio Wuschko
- Drug and Chemical Safety Research & Toxicology, Consultant, Alland, Austria
| | - Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,Department of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | | | - Helmut Hofbauer
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | | | | | - Anja Peterbauer
- Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Susanne Suessner
- Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Svitlana Demyanets
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Jost Leuschner
- LPT - Laboratory of Pharmacology and Toxicology GmbH & Co KG, Hamburg, Germany
| | - Bernhard Moser
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Hendrik J Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. .,FFG Projects "APOSEC" 852748 and 862068, Medical University Vienna, Vienna, Austria.
| |
Collapse
|
21
|
Viral safety of APOSECTM: a novel peripheral blood mononuclear cell derived-biological for regenerative medicine. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2019; 18:30-39. [PMID: 30865581 DOI: 10.2450/2019.0249-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 01/31/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Viral reduction and inactivation of cell-derived biologicals is paramount for patients' safety and so viral reduction needs to be demonstrated to regulatory bodies in order to obtain marketing authorisation. Allogeneic human blood-derived biological medicinal products require special attention. APOSECTM, the secretome harvested from selected human blood cells, is a new biological with promising regenerative capabilities. We evaluated the effectiveness of inactivation of model viruses by methylene blue/light treatment, lyophilisation, and gamma irradiation during the manufacturing process of APOSECTM. MATERIALS AND METHODS Samples of intermediates of APOSECTM were acquired during the manufacturing process and spiked with bovine viral diarrhoea virus (BVDV), human immunodeficiency virus type 1 (HIV-1), pseudorabies virus (PRV), hepatitis A virus (HAV), and porcine parvovirus (PPV). Viral titres were assessed with suitable cell lines. RESULTS Methylene blue-assisted viral reduction is mainly effective against enveloped viruses: the minimum log10 reduction factors for BVDV, HIV-1, and PRV were ≥6.42, ≥6.88, and ≥6.18, respectively, with no observed residual infectivity. Viral titres of both HAV and PPV were not significantly reduced, indicating minor inactivation of non-enveloped viruses. Lyophilisation had minor effects on the viability of several enveloped model viruses. Gamma irradiation contributes to the viral safety by reduction of enveloped viruses (BVDV: ≥2.42; HIV-1: 4.53; PRV: ≥4.61) and to some degree of non-enveloped viruses as seen for HAV with a minimum log10 reduction factor of 2.92. No significant reduction could be measured for the non-enveloped virus PPV (2.60). DISCUSSION Three manufacturing steps of APOSECTM were evaluated under Good Laboratory Practice conditions for their efficacy at reducing and inactivating potentially present viruses. It could be demonstrated that all three steps contribute to the viral safety of APOSECTM.
Collapse
|
22
|
Different pro-angiogenic potential of γ-irradiated PBMC-derived secretome and its subfractions. Sci Rep 2018; 8:18016. [PMID: 30573762 PMCID: PMC6301954 DOI: 10.1038/s41598-018-36928-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/27/2018] [Indexed: 12/11/2022] Open
Abstract
Secretomes from various cell sources exert strong regenerative activities on numerous organs, including the skin. Although secretomes consist of many diverse components, a growing body of evidence suggests that small extracellular vesicles (EVs) account for their regenerative capacity. We previously demonstrated that the secretome of γ-irradiated peripheral blood mononuclear cells (PBMCs) exhibits wound healing capacity. Therefore, we sought to dissect the molecular composition of EVs present in the secretome and compared wound healing-related activities of these EVs to other subfractions of the secretome and the fully supplemented secretome (MNCaposec). Compared to EVs derived from non-irradiated PBMCs, γ-irradiation significantly increased the size and number and changed the composition of released EVs. Detailed characterization of the molecular components of EVs, i.e. miRNA, proteins, and lipids, derived from irradiated PBMCs revealed a strong association with regenerative processes. Reporter gene assays and aortic ring sprouting assays revealed diminished activity of the subfractions compared to MNCaposec. In addition, we showed that MNCaposec accelerated wound closure in a diabetic mouse model. Taken together, our results suggest that secretome-based wound healing represents a promising new therapeutic avenue, and strongly recommend using the complete secretome instead of purified subfractions, such as EVs, to exploit its full regenerative capacity.
Collapse
|
23
|
Haque N, Abdullah BJJ, Kasim NHA. Secretome: Pharmaceuticals for Cell-Free Regenerative Therapy. STEM CELL DRUGS - A NEW GENERATION OF BIOPHARMACEUTICALS 2018. [DOI: 10.1007/978-3-319-99328-7_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
24
|
Safety and tolerability of topically administered autologous, apoptotic PBMC secretome (APOSEC) in dermal wounds: a randomized Phase 1 trial (MARSYAS I). Sci Rep 2017; 7:6216. [PMID: 28740204 PMCID: PMC5524970 DOI: 10.1038/s41598-017-06223-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/20/2017] [Indexed: 12/26/2022] Open
Abstract
Developing effective therapies against chronic wound healing deficiencies is a global priority. Thus we evaluated the safety of two different doses of topically administered autologous APOSEC, the secretome of apoptotic peripheral blood mononuclear cells (PBMCs), in healthy male volunteers with artificial dermal wounds. Ten healthy men were enrolled in a single-center, randomized, double-blinded, placebo-controlled phase 1 trial. Two artificial wounds at the upper arm were generated using a 4-mm punch biopsy. Each participant was treated with both topically applied APOSEC and placebo in NuGel for 7 consecutive days. The volunteers were randomized into two groups: a low-dose group (A) receiving the supernatant of 12.5 × 106 PBMCs and a high-dose group (B) receiving an equivalent of 25 × 106 PBMCs resuspended in NuGel Hydrogel. Irradiated medium served as placebo. The primary outcome was the tolerability of the topical application of APOSEC. All adverse events were recorded until 17 days after the biopsy. Local tolerability assessment was measured on a 4-point scale. Secondary outcomes were wound closure and epithelization at day 7. No therapy-related serious adverse events occurred in any of the participants, and both low- and high-dose treatments were well tolerated. Wound closure was not affected by APOSEC therapy.
Collapse
|
25
|
Haque N, Kasim NHA, Kassim NLA, Rahman MT. Autologous serum supplement favours in vitro regenerative paracrine factors synthesis. Cell Prolif 2017; 50. [PMID: 28682474 DOI: 10.1111/cpr.12354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/28/2017] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES Foetal bovine serum (FBS) is often the serum supplement of choice for in vitro human cell culture. This study compares the effect of FBS and autologous human serum (AuHS) supplement in human peripheral blood mononuclear cell (PBMC) culture to prepare secretome. MATERIALS AND METHODS The PBMC (n = 7) were cultured either in RPMI-1640 containing L-glutamine and 50 units/ml Penicillin-Streptomycin (BM) or in BM with either AuHS or FBS. Viability, proliferation and differentiation of PBMC were evaluated. Paracrine factors present in the secretomes (n = 6) were analysed using ProcartaPlex Human Cytokine panel (17 plex). Ingenuity Pathway Analysis (IPA) was performed to predict activation or inhibition of biological functions related to tissue regeneration. RESULTS The viability of PBMC that were cultured with FBS supplement was significantly reduced at 96 h compared to those at 0 and 24 h (P < .05). While the reduction of the viability of PBMC that were cultured with AuHS supplement was not significantly different compared to those at 0 and 24 h. The FBS secretomes prepared at 24 h was found to contain significantly higher amount of EGF (P < .05) compared to that in AuHS or BM secretome. The AuHS secretomes contained significantly higher amount of HGF at 24 (P < .05) and 96 h (P < .01), and VEGF-A at 24 h (P < .05) compared to those in the FBS secretomes. SDF-1 was not detected in the FBS secretomes prepared at either 24 or 96 hours. Double immunocytochemical staining revealed a marked increase in co-localization of SDF-1 and its receptor in PBMC that were cultured with AuHS supplement compared to that cultured with FBS supplement. CONCLUSION In secretome preparation, AuHS supplement favours synthesis of paracrine factors that are needed for regenerative therapy.
Collapse
Affiliation(s)
- Nazmul Haque
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.,Regenerative Dentistry Research Group, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Noor Hayaty Abu Kasim
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.,Regenerative Dentistry Research Group, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Noor Lide Abu Kassim
- Faculty of Education, International Islamic University Malaysia, Kuala Lumpur, Malaysia
| | | |
Collapse
|
26
|
Beer L, Nemec L, Wagner T, Ristl R, Altenburger LM, Ankersmit HJ, Mildner M. Ionizing radiation regulates long non-coding RNAs in human peripheral blood mononuclear cells. JOURNAL OF RADIATION RESEARCH 2017; 58:201-209. [PMID: 27974506 PMCID: PMC5603904 DOI: 10.1093/jrr/rrw111] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 09/27/2016] [Indexed: 05/17/2023]
Abstract
Long non-coding RNAs (lncRNAs) are non-protein coding transcripts that modulate mRNA and microRNA (miRNA) expression, thereby controlling multiple cellular processes, including transcriptional regulation of gene expression, cell differentiation and apoptosis. Ionizing radiation (IR), a strong cellular stressor, is known to influence gene expression of irradiated cells, mainly by activation of oxidative processes. Whether and how IR also affects lncRNA expression in human peripheral blood mononuclear cells (PBMCs) is still poorly understood. Exposure of PBMCs to IR dose-dependently activated p53 and its downstream target p21, ultimately leading to cell-cycle arrest and/or apoptosis. Cleavage of caspase-3, a specific process during apoptotic cell death, was detectable at doses as low as 30 Gy. Transcriptome analysis of 60 Gy-irradiated PBMCs revealed a strong time-dependent regulation of a variety of lncRNAs. Among many unknown lncRNAs we also identified a significant upregulation of Trp53cor1, MEG3 and TUG1, which have been shown to be involved in the regulation of cell cycle and apoptotic processes mediated by p53. In addition, we found 177 miRNAs regulated in the same samples, including several miRNAs that are known targets of upregulated lncRNAs. Our data show that IR dose-dependently regulates the expression of a wide spectrum of lncRNAs in PBMCs, suggesting a crucial role for lncRNAs in the complex regulatory machinery activated in response to IR.
Collapse
Affiliation(s)
- Lucian Beer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Austria
| | - Lucas Nemec
- Department of Thoracic Surgery, Medical University of Vienna, Austria
- Molecular Biotechnology, University of Applied Sciences FH Campus Wien, Vienna, Austria
| | - Tanja Wagner
- Department of Thoracic Surgery, Medical University of Vienna, Austria
| | - Robin Ristl
- Center for Medical Statistics, Informatics, and Intelligent Systems, Section for Medical Statistics, Medical University of Vienna, Vienna, Austria
| | - Lukas M. Altenburger
- Department of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Austria
- Department of Thoracic Surgery, Medical University of Vienna, Austria
- Head FFG Project 852748 ‘APOSEC’, FOLAB Surgery, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria
- Corresponding authors. Medical University of Vienna, Department of Dermatology, Research Division of Biology and Pathobiology of the Skin, Lazarettgasse 14, 1090, Vienna, Austria. Tel: +43-1-40400-73507; Fax: +43-1-40400-73590.
| |
Collapse
|
27
|
Chen QQ, Chen M, Zhang LH, Zeng Y, Qi-Cai L, Yang XL, Lin XC. Costimulation blockade by combining CTLA4Ig with anti-CD40L mAb markedly inhibits the inflammatory response of experimental autoimmune myocarditis. EUR J INFLAMM 2017. [DOI: 10.1177/1721727x16686980] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The aim of this study was to investigate the effect of costimulation blockade with cytotoxic T-lymphocyte-associated-antigen 4-immunoglobulin (CTLA4Ig) and anti-CD40L monoclonal antibody (anti-CD40L mAb) on an experimental autoimmune myocarditis (EAM) mouse model. Characteristics of myocardial tissue were observed by hematoxylin and eosin (H&E) staining. The messenger RNA (mRNA) levels of CTLA4, CD40L, IFN-γ, and IL-4 were detected by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR). Serum concentrations of IFN-γ and IL-4 were determined by ELISA. After immune intervention, the inflammatory score, mRNA levels of CTLA4 and CD40L, and IFN-γ level were decreased. Furthermore, these parameters in the combinational intervention group (blockade by CTLA4Ig and anti-CD40L mAb) were significantly decreased, compared to the single intervention group (blockade by CTLA4Ig or anti-CD40L mAb). However, after costimulation, blockade serum IL-4 levels were increased. Therefore, costimulation blockade by combination CTLA4Ig and anti-CD40L mAb could more effectively inhibit the inflammatory response of EAM than single use of CTLA4Ig or anti-CD40L mAb.
Collapse
Affiliation(s)
- Qing-Quan Chen
- Department of Laboratory Medicine, Medical Technology and Engineering College, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Min Chen
- Department of Laboratory Medicine, Medical Technology and Engineering College, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Li-Hua Zhang
- Department of Laboratory Medicine, the Affiliated Union Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Yu Zeng
- Department of Laboratory Medicine, Medical Technology and Engineering College, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Liu Qi-Cai
- Department of Laboratory Medicine, Medical Technology and Engineering College, Fujian Medical University, Fuzhou, Fujian, PR China
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Xiu-Lin Yang
- Department of Laboratory Medicine, Medical Technology and Engineering College, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Xu-Chen Lin
- Department of Laboratory Medicine, Medical Technology and Engineering College, Fujian Medical University, Fuzhou, Fujian, PR China
| |
Collapse
|
28
|
Abstract
For almost two decades, cell-based therapies have been tested in modern regenerative medicine to either replace or regenerate human cells, tissues, or organs and restore normal function. Secreted paracrine factors are increasingly accepted to exert beneficial biological effects that promote tissue regeneration. These factors are called the cell secretome and include a variety of proteins, lipids, microRNAs, and extracellular vesicles, such as exosomes and microparticles. The stem cell secretome has most commonly been investigated in pre-clinical settings. However, a growing body of evidence indicates that other cell types, such as peripheral blood mononuclear cells (PBMCs), are capable of releasing significant amounts of biologically active paracrine factors that exert beneficial regenerative effects. The apoptotic PBMC secretome has been successfully used pre-clinically for the treatment of acute myocardial infarction, chronic heart failure, spinal cord injury, stroke, and wound healing. In this review we describe the benefits of choosing PBMCs instead of stem cells in regenerative medicine and characterize the factors released from apoptotic PBMCs. We also discuss pre-clinical studies with apoptotic cell-based therapies and regulatory issues that have to be considered when conducting clinical trials using cell secretome-based products. This should allow the reader to envision PBMC secretome-based therapies as alternatives to all other forms of cell-based therapies.
Collapse
Affiliation(s)
- Lucian Beer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Mariann Gyöngyösi
- Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Vienna, Austria.
- Head FFG Project 852748 "APOSEC", FOLAB Surgery, Medical University of Vienna, Vienna, Austria.
- Department of Thoracic Surgery, Medical University Vienna, Vienna, Austria.
| |
Collapse
|
29
|
Kasiri MM, Beer L, Nemec L, Gruber F, Pietkiewicz S, Haider T, Simader EM, Traxler D, Schweiger T, Janik S, Taghavi S, Gabriel C, Mildner M, Ankersmit HJ. Dying blood mononuclear cell secretome exerts antimicrobial activity. Eur J Clin Invest 2016; 46:853-63. [PMID: 27513763 PMCID: PMC5113772 DOI: 10.1111/eci.12667] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 08/09/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND Several activities are attributed to antimicrobial peptides (AMPs), including bacterial killing, leucocyte recruitment and angiogenesis. Despite promises of advanced cellular therapies for treatment of diabetic foot ulcer, it is currently accepted that paracrine factors rather than cellular components are causative for the observed effects. Whether AMPs are present in the mononuclear cell (MNC) secretome (MNC-sec) of white blood cells that are beneficial in experimental wound healing is not known. MATERIALS AND METHODS Antimicrobial activity of the secretomes of nonirradiated (MNC-sec) and γ-irradiated MNCs (MNC-sec rad) was analysed by microdilution assay. AMPs were determined by quantitative real-time PCR (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). Whether human MNC-sec rad causes AMP secretion in vivo was examined in an experimental rat model. Image flow cytometry was used to determine the type of cell death induced in MNCs after exposure to γ-radiation. RESULTS The antimicrobial activity assay revealed a bactericidal activity of MNC-sec rad and to a lesser degree also of MNC-sec. Image flow cytometry showed that γ-irradiation of MNCs induced early apoptosis followed mainly by necroptosis. RT-PCR and ELISA revealed a high abundance of different AMPs in the secretome of MNCs. In addition, human MNC-sec elicited an increase in de novo endogenous AMP production in rats in vivo. CONCLUSION We provide evidence that the secretome of MNCs has direct and indirect positive effects on the immune defence system, including augmentation of antibacterial properties. Our data further suggest that necroptosis could play a key role for the release of paracrine factors and the therapeutic action of MNC-sec rad.
Collapse
Affiliation(s)
- Mohammad Mahdi Kasiri
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria
| | - Lucian Beer
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria.,Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Lucas Nemec
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Florian Gruber
- Department of Dermatology, Medical University of Vienna, Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, Vienna, Austria
| | - Sabine Pietkiewicz
- Translational Inflammation Research, Otto von Guericke University, Magdeburg, Germany
| | - Thomas Haider
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria
| | - Elisabeth Maria Simader
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria
| | - Denise Traxler
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria
| | - Thomas Schweiger
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Stefan Janik
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria
| | - Shahrokh Taghavi
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria.
| | - Hendrik Jan Ankersmit
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, Austria. .,Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. .,Head FFG Project 852748 'APOSEC', Medical University of Vienna, Vienna, Austria.
| |
Collapse
|
30
|
Paracrine Factors from Irradiated Peripheral Blood Mononuclear Cells Improve Skin Regeneration and Angiogenesis in a Porcine Burn Model. Sci Rep 2016; 6:25168. [PMID: 27125302 PMCID: PMC4850437 DOI: 10.1038/srep25168] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 03/31/2016] [Indexed: 12/22/2022] Open
Abstract
Burn wounds pose a serious threat to patients and often require surgical treatment. Skin grafting aims to achieve wound closure but requires a well-vascularized wound bed. The secretome of peripheral blood mononuclear cells (PBMCs) has been shown to improve wound healing and angiogenesis. We hypothesized that topical application of the PBMC secretome would improve the quality of regenerating skin, increase angiogenesis, and reduce scar formation after burn injury and skin grafting in a porcine model. Full-thickness burn injuries were created on the back of female pigs. Necrotic areas were excised and the wounds were covered with split-thickness mesh skin grafts. Wounds were treated repeatedly with either the secretome of cultured PBMCs (Sec(PBMC)), apoptotic PBMCs (Apo-Sec(PBMC)), or controls. The wounds treated with Apo-Sec(PBMC) had an increased epidermal thickness, higher number of rete ridges, and more advanced epidermal differentiation than controls. The samples treated with Apo-Sec(PBMC) had a two-fold increase in CD31+ cells, indicating more angiogenesis. These data suggest that the repeated application of Apo-Sec(PBMC) significantly improves epidermal thickness, angiogenesis, and skin quality in a porcine model of burn injury and skin grafting.
Collapse
|
31
|
Methods for Testing Immunological Factors. DRUG DISCOVERY AND EVALUATION: PHARMACOLOGICAL ASSAYS 2016. [PMCID: PMC7122208 DOI: 10.1007/978-3-319-05392-9_45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Hypersensitivity reactions can be elicited by various factors: either immunologically induced, i.e., allergic reactions to natural or synthetic compounds mediated by IgE, or non-immunologically induced, i.e., activation of mediator release from cells through direct contact, without the induction of, or the mediation through immune responses. Mediators responsible for hypersensitivity reactions are released from mast cells. An important preformed mediator of allergic reactions found in these cells is histamine. Specific allergens or the calcium ionophore 48/80 induce release of histamine from mast cells. The histamine concentration can be determined with the o-phthalaldehyde reaction.
Collapse
|
32
|
Analysis of the Secretome of Apoptotic Peripheral Blood Mononuclear Cells: Impact of Released Proteins and Exosomes for Tissue Regeneration. Sci Rep 2015; 5:16662. [PMID: 26567861 PMCID: PMC4645175 DOI: 10.1038/srep16662] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/19/2015] [Indexed: 12/12/2022] Open
Abstract
We previously showed that, when peripheral blood mononuclear cells (PBMCs) were stressed with ionizing radiation, they released paracrine factors that showed regenerative capacity in vitro and in vivo. This study aimed to characterize the secretome of PBMCs and to investigate its biologically active components in vitro and vivo. Bioinformatics analysis revealed that irradiated PBMCs differentially expressed genes that encoded secreted proteins. These genes were primarily involved in (a) pro-angiogenic and regenerative pathways and (b) the generation of oxidized phospholipids with known pro-angiogenic and inflammation-modulating properties. Subsequently, in vitro assays showed that the exosome and protein fractions of irradiated and non-irradiated PBMC secretome were the major biological components that enhanced cell mobility; conversely, secreted lipids and microparticles had no effects. We tested a viral-cleared PBMC secretome, prepared according to good manufacturing practice (GMP), in a porcine model of closed chest, acute myocardial infarction. We found that the potency for preventing ventricular remodeling was similar with the GMP-compliant and experimentally-prepared PBMC secretomes. Our results indicate that irradiation modulates the release of proteins, lipid-mediators and extracellular vesicles from human PBMCs. In addition our findings implicate the use of secretome fractions as valuable material for the development of cell-free therapies in regenerative medicine.
Collapse
|
33
|
Haider T, Höftberger R, Rüger B, Mildner M, Blumer R, Mitterbauer A, Buchacher T, Sherif C, Altmann P, Redl H, Gabriel C, Gyöngyösi M, Fischer MB, Lubec G, Ankersmit HJ. The secretome of apoptotic human peripheral blood mononuclear cells attenuates secondary damage following spinal cord injury in rats. Exp Neurol 2015; 267:230-42. [PMID: 25797576 DOI: 10.1016/j.expneurol.2015.03.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 03/05/2015] [Accepted: 03/12/2015] [Indexed: 12/16/2022]
Abstract
After spinal cord injury (SCI), secondary damage caused by oxidative stress, inflammation, and ischemia leads to neurological deterioration. In recent years, therapeutic approaches to trauma have focused on modulating this secondary cascade. There is increasing evidence that the success of cell-based SCI therapy is due mainly to secreted factors rather than to cell implantation per se. This study investigated peripheral blood mononuclear cells as a source of factors for secretome- (MNC-secretome-) based therapy. Specifically, we investigated whether MNC-secretome had therapeutic effects in a rat SCI contusion model and its possible underlying mechanisms. Rats treated with MNC-secretome showed substantially improved functional recovery, attenuated cavity formation, and reduced acute axonal injury compared to control animals. Histological evaluation revealed higher vascular density in the spinal cords of treated animals. Immunohistochemistry showed that MNC-secretome treatment increased the recruitment of CD68(+) cells with concomitant reduction of oxidative stress as reflected by lower expression of inducible nitric oxide synthase. Notably, MNC-secretome showed angiogenic properties ex vivo in aortic rings and spinal cord tissue, and experiments showed that the angiogenic potential of MNC-secretome may be regulated by CXCL-1 upregulation in vivo. Moreover, systemic application of MNC-secretome activated the ERK1/2 pathway in the spinal cord. Taken together, these results indicate that factors in MNC-secretome can mitigate the pathophysiological processes of secondary damage after SCI and improve functional outcomes in rats.
Collapse
Affiliation(s)
- Thomas Haider
- University Clinic for Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria; Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Romana Höftberger
- Institute of Neurology, Medical University of Vienna, Vienna, Austria
| | - Beate Rüger
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Roland Blumer
- Center of Anatomy and Cell Biology, Medical University Vienna, Vienna, Austria
| | - Andreas Mitterbauer
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria; Department of Thoracic Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Tanja Buchacher
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria; Department of Thoracic Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Camillo Sherif
- Department of Neurosurgery, Krankenanstalt Rudolfstiftung, Vienna, Austria
| | - Patrick Altmann
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria; Department of Thoracic Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Christian Gabriel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria; Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Mariann Gyöngyösi
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Michael B Fischer
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria; Center for Biomedical Technology, Danube University Krems, Krems, Austria
| | - Gert Lubec
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria; Department of Thoracic Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
| |
Collapse
|
34
|
Affiliation(s)
- Carsten Skurk
- Department of Cardiology, Pulmology and Angiology, Charite University Medicine Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, D-12203 Berlin, Germany
| | - Heinz-Peter Schultheiss
- Department of Cardiology, Pulmology and Angiology, Charite University Medicine Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, D-12203 Berlin, Germany
| |
Collapse
|
35
|
Affiliation(s)
- Thomas F Lüscher
- Editor-in-Chief, Zurich Heart House, Careum Campus, Moussonstrasse 4, 8091 Zurich, Switzerland
| |
Collapse
|
36
|
High dose ionizing radiation regulates micro RNA and gene expression changes in human peripheral blood mononuclear cells. BMC Genomics 2014; 15:814. [PMID: 25257395 PMCID: PMC4182888 DOI: 10.1186/1471-2164-15-814] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 09/22/2014] [Indexed: 12/15/2022] Open
Abstract
Background High dose ionizing radiation (IR) induces potent toxic cell effects mediated by either direct DNA damage or the production of reactive oxygen species (ROS). IR-induced modulations in multiple biological processes have been proposed to be partly regulated by radiosensitive microRNA (miRNA). In order to gain new insights into the role of miRNAs in the regulation of biological processes after IR, we have investigated changes in mRNA and miRNA expression after high dose IR. Results IR induced changes in the mRNA and miRNA profiles of human peripheral blood mononuclear cells (PBMCs). When comparing non-irradiated and irradiated samples, we detected a time-dependent increase in differentially expressed mRNAs and miRNAs, with the highest differences detectable 20 hours after exposure. Gene ontology analysis revealed that very early events (up to 4 hours) after irradiation were specifically associated with p53 signaling and apoptotic pathways, whereas a large number of diverse cellular processes were deregulated after 20 hours. Transcription factor analysis of all up-regulated genes confirmed the importance of p53 in the early post-irradiation phase. When analyzing miRNA expression, we found 177 miRNAs that were significantly regulated in the late post-irradiation phase. Integrating miRNA and target gene expression data, we found a significant negative correlation between miRNA-mRNA and identified hepatic leukemia factor (HLF) as a transcription factor down-regulated in the response to IR. These regulated miRNAs and the HLF target genes were involved in modulating radio-responsive pathways, such as apoptosis, the MAKP signaling pathway, endocytosis, and cytokine-cytokine interactions. Conclusion Using a large dataset of mRNA and miRNA expression profiles, we describe the interplay of mRNAs and miRNAs in the regulation of gene expression in response to IR at a posttranscriptional level and their involvement in the modulation of radiation-induced biological pathways. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-814) contains supplementary material, which is available to authorized users.
Collapse
|
37
|
Altmann P, Mildner M, Haider T, Traxler D, Beer L, Ristl R, Golabi B, Gabriel C, Leutmezer F, Ankersmit HJ. Secretomes of apoptotic mononuclear cells ameliorate neurological damage in rats with focal ischemia. F1000Res 2014; 3:131. [PMID: 25383184 PMCID: PMC4215751 DOI: 10.12688/f1000research.4219.2] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/20/2014] [Indexed: 12/15/2022] Open
Abstract
The pursuit of targeting multiple pathways in the ischemic cascade of cerebral stroke is a promising treatment option. We examined the regenerative potential of conditioned medium derived from rat and human apoptotic mononuclear cells (MNC), rMNC
apo sec and hMNC
apo sec, in experimental stroke. We performed middle cerebral artery occlusion on Wistar rats and administered apoptotic MNC-secretomes intraperitoneally in two experimental settings. Ischemic lesion volumes were determined 48 hours after cerebral ischemia. Neurological evaluations were performed after 6, 24 and 48 hours. Immunoblots were conducted to analyze neuroprotective signal-transduction in human primary glia cells and neurons. Neuronal sprouting assays were performed and neurotrophic factors in both hMNC
apo sec and rat plasma were quantified using ELISA. Administration of rat as well as human apoptotic MNC-secretomes significantly reduced ischemic lesion volumes by 36% and 37%, respectively. Neurological examinations revealed improvement after stroke in both treatment groups. Co-incubation of human astrocytes, Schwann cells and neurons with hMNC
apo sec resulted in activation of several signaling cascades associated with the regulation of cytoprotective gene products and enhanced neuronal sprouting
in vitro. Analysis of neurotrophic factors in hMNC
apo sec and rat plasma revealed high levels of brain derived neurotrophic factor (BDNF). Our data indicate that apoptotic MNC-secretomes elicit neuroprotective effects on rats that have undergone ischemic stroke.
Collapse
Affiliation(s)
- Patrick Altmann
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, 1090, Austria ; Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, 1090, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, 1090, Austria
| | - Thomas Haider
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, 1090, Austria ; Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, 1090, Austria
| | - Denise Traxler
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, 1090, Austria ; Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, 1090, Austria
| | - Lucian Beer
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, 1090, Austria
| | - Robin Ristl
- Section for Medical Statistics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, 1090, Austria
| | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, Vienna, 1090, Austria
| | - Christian Gabriel
- Red Cross Transfusion Service for Upper Austria, Linz, 4017, Austria
| | - Fritz Leutmezer
- Department of Neurology, Medical University of Vienna, Vienna, 1090, Austria
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, 1090, Austria ; Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Vienna, 1090, Austria
| |
Collapse
|