1
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Bormann D, Gugerell A, Ankersmit HJ, Mildner M. Therapeutic Application of Cell Secretomes in Cutaneous Wound Healing. J Invest Dermatol 2023; 143:893-912. [PMID: 37211377 DOI: 10.1016/j.jid.2023.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/02/2023] [Accepted: 02/10/2023] [Indexed: 05/23/2023]
Abstract
Although the application of stem cells to chronic wounds emerged as a candidate therapy in the previous century, the mechanism of action remains unclear. Recent evidence has implicated secreted paracrine factors in the regenerative properties of cell-based therapies. In the last two decades, considerable research advances involving the therapeutic potential of stem cell secretomes have expanded the scope of secretome-based therapies beyond stem cell populations. In this study, we review the modes of action of cell secretomes in wound healing, important preconditioning strategies for enhancing their therapeutic efficacy, and clinical trials on secretome-based wound healing.
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Affiliation(s)
- Daniel Bormann
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Alfred Gugerell
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Vienna, Austria.
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2
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Vorstandlechner V, Copic D, Klas K, Direder M, Golabi B, Radtke C, Ankersmit HJ, Mildner M. The Secretome of Irradiated Peripheral Mononuclear Cells Attenuates Hypertrophic Skin Scarring. Pharmaceutics 2023; 15:pharmaceutics15041065. [PMID: 37111549 PMCID: PMC10143262 DOI: 10.3390/pharmaceutics15041065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Hypertrophic scars can cause pain, movement restrictions, and reduction in the quality of life. Despite numerous options to treat hypertrophic scarring, efficient therapies are still scarce, and cellular mechanisms are not well understood. Factors secreted by peripheral blood mononuclear cells (PBMCsec) have been previously described for their beneficial effects on tissue regeneration. In this study, we investigated the effects of PBMCsec on skin scarring in mouse models and human scar explant cultures at single-cell resolution (scRNAseq). Mouse wounds and scars, and human mature scars were treated with PBMCsec intradermally and topically. The topical and intradermal application of PBMCsec regulated the expression of various genes involved in pro-fibrotic processes and tissue remodeling. We identified elastin as a common linchpin of anti-fibrotic action in both mouse and human scars. In vitro, we found that PBMCsec prevents TGFβ-mediated myofibroblast differentiation and attenuates abundant elastin expression with non-canonical signaling inhibition. Furthermore, the TGFβ-induced breakdown of elastic fibers was strongly inhibited by the addition of PBMCsec. In conclusion, we conducted an extensive study with multiple experimental approaches and ample scRNAseq data demonstrating the anti-fibrotic effect of PBMCsec on cutaneous scars in mouse and human experimental settings. These findings point at PBMCsec as a novel therapeutic option to treat skin scarring.
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Affiliation(s)
- Vera Vorstandlechner
- 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
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, 1090 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
- Department of Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, 1090 Vienna, Austria
| | - 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
| | - 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
- Department of Orthopedics and Trauma-Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Christine Radtke
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Hendrik J. 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
- Correspondence:
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3
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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.
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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
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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.
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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.)
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Umar AK, Luckanagul JA, Zothantluanga JH, Sriwidodo S. Complexed Polymer Film-Forming Spray: An Optimal Delivery System for Secretome of Mesenchymal Stem Cell as Diabetic Wound Dressing? Pharmaceuticals (Basel) 2022; 15:867. [PMID: 35890165 PMCID: PMC9324405 DOI: 10.3390/ph15070867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 02/04/2023] Open
Abstract
Diabetes-related wounds have physiological factors that make healing more complicated. High sugar levels can increase microbial infection risk while limiting nutrition and oxygen transfer to the wound area. The secretome of mesenchymal stem cells has been widely known for its efficacy in regenerative therapy. However, applying the secretome directly to the wound can reduce its effectiveness. In this review, we examined the literature on synthesizing the combinations of carboxymethyl chitosan, hyaluronic acid, and collagen tripeptides, as well as the possibility of physicochemical properties enhancement of the hydrogel matrix, which could potentially be used as an optimal delivery system of stem cell's secretome for diabetic wound healing.
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Affiliation(s)
- Abd. Kakhar Umar
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Jittima Amie Luckanagul
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand;
| | - James H. Zothantluanga
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India;
| | - Sriwidodo Sriwidodo
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
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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).
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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.
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Tan KX, Chang T, Lin XL. Secretomes as an emerging class of bioactive ingredients for enhanced cosmeceutical applications. Exp Dermatol 2022; 31:674-688. [PMID: 35338666 DOI: 10.1111/exd.14570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/23/2022] [Accepted: 03/22/2022] [Indexed: 11/30/2022]
Abstract
Skin aging is predominantly caused by either intrinsic or extrinsic factors, leading to undesirable skin features. Advancements in both molecular and cellular fields have created possibilities in developing novel stem cell-derived active ingredients for cosmeceutical applications and the beauty industry. Mesenchymal stromal cell (MSC)-derived secretomes or conditioned media hold great promise for advancing skin repair and regeneration due to the presence of varying cytokines. These cytokines signal our cells and trigger biological mechanisms associated with anti-inflammatory, antioxidant, anti-aging, proliferative, and immunomodulatory effects. In this review, we discuss the potential of MSC secretomes as novel biomaterials for skincare and rejuvenation by illustrating their mechanism of action related to wound healing, anti-aging, and whitening properties. The advantages and disadvantages of secretomes are compared to both plant-based and animal-derived extracts. In addition, this paper reviews the current safety standards, regulations, market products and research work related to the cosmeceutical applications of secretomes along with strategies to maintain and improve the therapeutic efficacy and production of secretomes. The future outlook of beauty industry is also presented. Lastly, we highlight significant challenges to be addressed for the clinical realization of MSC secretomes-based skin therapies as well as providing perspectives for the future direction of secretomes.
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Affiliation(s)
- Kei-Xian Tan
- Esco Aster, Block 67, Ayer Rajah Crescent, 139950, Singapore
| | - Trixie Chang
- Esco Aster, Block 67, Ayer Rajah Crescent, 139950, Singapore
| | - Xiang-Liang Lin
- Esco Aster, Block 67, Ayer Rajah Crescent, 139950, Singapore
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8
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Tanaka R, Fujimura S, Kado M, Fukuta T, Arita K, Hirano-Ito R, Mita T, Watada H, Kato Y, Miyauchi K, Mizuno H. Phase I/IIa Feasibility Trial of Autologous Quality- and Quantity-Cultured Peripheral Blood Mononuclear Cell Therapy for Non-Healing Extremity Ulcers. Stem Cells Transl Med 2022; 11:146-158. [PMID: 35298656 PMCID: PMC8929435 DOI: 10.1093/stcltm/szab018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 10/24/2021] [Indexed: 11/24/2022] Open
Abstract
Non-healing wounds are among the main causes of morbidity and mortality. We recently described a novel, serum-free ex vivo expansion system, the quantity and quality culture system (QQc), which uses peripheral blood mononuclear cells (PBMNCs) for effective and noninvasive regeneration of tissue and vasculature in murine and porcine models. In this prospective clinical study, we investigated the safety and efficacy of QQ-cultured peripheral blood mononuclear cell (MNC-QQ) therapy for chronic non-healing ischemic extremity wounds. Peripheral blood was collected from 9 patients with 10 chronic (>1 month) non-healing wounds (8 males, 1 female; 64-74 years) corresponding to ischemic extremity ulcers. PBMNCs were isolated and cultured using QQc. Within a 20-cm area surrounding the ulcer, 2 × 107 cells were injected under local anesthesia. Wound healing was monitored photometrically every 2 weeks. The primary endpoint was safety, whereas the secondary endpoint was efficacy at 12-week post-injection. All patients remained ambulant, and no deaths, other serious adverse events, or major amputations were observed for 12 weeks after cell transplantation. Six of the 10 cases showed complete wound closure with an average wound closure rate of 73.2% ± 40.1% at 12 weeks. MNC-QQ therapy increased vascular perfusion, skin perfusion pressure, and decreased pain intensity in all patients. These results indicate the feasibility and safety of MNC-QQ therapy in patients with chronic non-healing ischemic extremity wounds. As the therapy involves transplanting highly vasculogenic cells obtained from a small blood sample, it may be an effective and highly vasculogenic strategy for limb salvage.
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Affiliation(s)
- Rica Tanaka
- Division of Regenerative Therapy, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
- Intractable Disease Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Satoshi Fujimura
- Division of Regenerative Therapy, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Intractable Disease Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Makiko Kado
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Taro Fukuta
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Kayo Arita
- Division of Regenerative Therapy, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Intractable Disease Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Rie Hirano-Ito
- Division of Regenerative Therapy, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Center for Genomic and Regenerative Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tomoya Mita
- Department of Metabolism and Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hirotaka Watada
- Department of Metabolism and Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoshiteru Kato
- Department of Internal Medicine, Division of Cardiology, Juntendo University School of Medicine, Tokyo, Japan
| | - Katsumi Miyauchi
- Department of Internal Medicine, Division of Cardiology, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroshi Mizuno
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
- Intractable Disease Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
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9
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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.
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Damayanti RH, Rusdiana T, Wathoni N. Mesenchymal Stem Cell Secretome for Dermatology Application: A Review. Clin Cosmet Investig Dermatol 2021; 14:1401-1412. [PMID: 34675575 PMCID: PMC8502696 DOI: 10.2147/ccid.s331044] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/21/2021] [Indexed: 12/25/2022]
Abstract
Secretome, also known as conditioned medium, is a secreted molecule from mesenchymal stem cells (MSCs) that has a variety of biological activities that can be used in various therapies, especially on the skin applications. A lack of conventional therapies makes secretome as a promising alternative therapy. The presence of growth factors, cytokines, and extracellular vesicles including microvesicles and exosomes in secretome has been widely reported, which serves in improving the proliferation and migration of cells to help in skin regeneration. Therefore, we were able to optimize the use of this secretome in a well-needed special review related to its work in addressing various skin problems. So, in this article, we discussed the benefits and biological activity of secretome on the skin application. This review was compiled based on the approval of several sites, such as Scopus, PubMed, Science Direct, and Google Scholar with the terms "MSC secretome for skin," "secretome for skin," "secretome dermatology," "secretome conditioned medium for skin," "secretome conditioned medium for skin wound," "secretome conditioned medium for aging," "secretome conditioned medium for hair growth," and "secretome conditioned medium for psoriasis." A total of 215 articles were collected for selection, of which 90 articles were used. Based on the results, it was concluded that secretome has a variety of useful activities to regenerate and repair tissue damage that have not been used on the skin, such as for wound healing, photoprotection, promotion of hair growth, psoriasis treatment, and other application as antimicrobial.
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Affiliation(s)
- Restu Harisma Damayanti
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45353, Indonesia
| | - Taofik Rusdiana
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45353, Indonesia
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, 45353, Indonesia
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11
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Kantapan J, Anukul N, Leetrakool N, Rolin G, Vergote J, Dechsupa N. Iron-Quercetin Complex Preconditioning of Human Peripheral Blood Mononuclear Cells Accelerates Angiogenic and Fibroblast Migration: Implications for Wound Healing. Int J Mol Sci 2021; 22:ijms22168851. [PMID: 34445558 PMCID: PMC8396238 DOI: 10.3390/ijms22168851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 02/07/2023] Open
Abstract
Cell-based therapy is a highly promising treatment paradigm in ischemic disease due to its ability to repair tissue when implanted into a damaged site. These therapeutic effects involve a strong paracrine component resulting from the high levels of bioactive molecules secreted in response to the local microenvironment. Therefore, the secreted therapeutic can be modulated by preconditioning the cells during in vitro culturing. Herein, we investigated the potential use of magnetic resonance imaging (MRI) probes, the "iron-quercetin complex" or IronQ, for preconditioning peripheral blood mononuclear cells (PBMCs) to expand proangiogenic cells and enhance their secreted therapeutic factors. PBMCs obtained from healthy donor blood were cultured in the presence of the iron-quercetin complex. Differentiated preconditioning PBMCs were characterized by immunostaining. An enzyme-linked immunosorbent assay was carried out to describe the secreted cytokines. In vitro migration and tubular formation using human umbilical vein endothelial cells (HUVECs) were completed to investigate the proangiogenic efficacy. IronQ significantly increased mononuclear progenitor cell proliferation and differentiation into spindle-shape-like cells, expressing both hematopoietic and stromal cell markers. The expansion increased the number of colony-forming units (CFU-Hill). The conditioned medium obtained from IronQ-treated PBMCs contained high levels of interleukin 8 (IL-8), IL-10, urokinase-type-plasminogen-activator (uPA), matrix metalloproteinases-9 (MMP-9), and tumor necrosis factor-alpha (TNF-α), as well as augmented migration and capillary network formation of HUVECs and fibroblast cells, in vitro. Our study demonstrated that the IronQ-preconditioning PBMC protocol could enhance the angiogenic and reparative potential of non-mobilized PBMCs. This protocol might be used as an adjunctive strategy to improve the efficacy of cell therapy when using PBMCs for ischemic diseases and chronic wounds. However, in vivo assessment is required for further validation.
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Affiliation(s)
- Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic 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;
| | - Nipapan Leetrakool
- Blood Bank Section, Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Gwenaël Rolin
- Inserm Centre d’Investigation Clinique-1431 (Inserm CIC-1431), Centre Hospitalier Régional Universitaire de Besançon, F-25000 Besançon, France;
- Inserm UMR1098, RIGHT Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Etablissement Français du Sang en Bourgogne Franche-Comté, Université de Bourgogne Franche-Comté, F-25000 Besançon, France
| | - Jackie Vergote
- Laboratoire Signalisation et Transports Ioniques Membranaires (EA 7349), Faculté de Pharmacie, Université de Tours, F-37200 Tours, 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;
- Correspondence: ; Tel.: +66-53-936-022
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12
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Laggner M, Gugerell A, Copic D, Jeitler M, Springer M, Peterbauer A, Kremslehner C, Filzwieser-Narzt M, Gruber F, Madlener S, Erb M, Widder J, Lechner W, Georg D, Mildner M, Ankersmit HJ. Comparing the efficacy of γ- and electron-irradiation of PBMCs to promote secretion of paracrine, regenerative factors. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2021; 21:14-27. [PMID: 33768126 PMCID: PMC7960502 DOI: 10.1016/j.omtm.2021.02.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/19/2021] [Indexed: 11/28/2022]
Abstract
Cell-free secretomes represent a promising new therapeutic avenue in regenerative medicine, and γ-irradiation of human peripheral blood mononuclear cells (PBMCs) has been shown to promote the release of paracrine factors with high regenerative potential. Recently, the use of alternative irradiation sources, such as artificially generated β- or electron-irradiation, is encouraged by authorities. Since the effect of the less hazardous electron-radiation on the production and functions of paracrine factors has not been tested so far, we compared the effects of γ- and electron-irradiation on PBMCs and determined the efficacy of both radiation sources for producing regenerative secretomes. Exposure to 60 Gy γ-rays from a radioactive nuclide and 60 Gy electron-irradiation provided by a linear accelerator comparably induced cell death and DNA damage. The transcriptional landscapes of PBMCs exposed to either radiation source shared a high degree of similarity. Secretion patterns of proteins, lipids, and extracellular vesicles displayed similar profiles after γ- and electron-irradiation. Lastly, we detected comparable biological activities in functional assays reflecting the regenerative potential of the secretomes. Taken together, we were able to demonstrate that electron-irradiation is an effective, alternative radiation source for producing therapeutic, cell-free secretomes. Our study paves the way for future clinical trials employing secretomes generated with electron-irradiation in tissue-regenerative medicine.
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Affiliation(s)
- Maria Laggner
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Alfred Gugerell
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Dragan Copic
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Markus Jeitler
- Core Facility Genomics, Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Springer
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Anja Peterbauer
- Austrian Red Cross Blood Transfusion Service of Upper Austria, 4020 Linz, Austria
| | - Christopher Kremslehner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, 1090 Vienna, Austria
| | - Manuel Filzwieser-Narzt
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, 1090 Vienna, Austria
| | - Florian Gruber
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, 1090 Vienna, Austria
| | - Sibylle Madlener
- Molecular Neuro-Oncology, Department of Pediatrics and Adolescent Medicine, and Institute of Neurology, Medical University of Vienna, 1090 Vienna, Austria.,Comprehensive Cancer Center of the Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Erb
- SYNLAB Analytics and Services Switzerland AG, 4127 Birsfelden, Switzerland
| | - Joachim Widder
- Department of Radiation Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Wolfgang Lechner
- Department of Radiation Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Dietmar Georg
- Department of Radiation Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
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13
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Gugerell A, Gouya-Lechner G, Hofbauer H, Laggner M, Trautinger F, Almer G, Peterbauer-Scherb A, Seibold M, Hoetzenecker W, Dreschl C, Mildner M, Ankersmit HJ. Safety and clinical efficacy of the secretome of stressed peripheral blood mononuclear cells in patients with diabetic foot ulcer-study protocol of the randomized, placebo-controlled, double-blind, multicenter, international phase II clinical trial MARSYAS II. Trials 2021; 22:10. [PMID: 33407796 PMCID: PMC7789696 DOI: 10.1186/s13063-020-04948-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022] Open
Abstract
Background Diabetes and its sequelae such as diabetic foot ulcer are rising health hazards not only in western countries but all over the world. Effective, yet safe treatments are desperately sought for by physicians, healthcare providers, and of course patients. Methods/design APOSEC, a novel, innovative drug, is tested in the phase I/II study MARSYAS II, where its efficacy to promote healing of diabetic foot ulcers will be determined. To this end, the cell-free secretome of peripheral blood mononuclear cells (APOSEC) blended with a hydrogel will be applied topically three times weekly for 4 weeks. APOSEC is predominantly effective in hypoxia-induced tissue damages by modulating the immune system and enhancing angiogenesis, whereby its anti-microbial ability and neuro-regenerative capacity will exert further positive effects. In total, 132 patients will be enrolled in the multicenter, randomized, double-blind, placebo-controlled, parallel group, dose-ranging phase I/II study and treated with APOSEC at three dose levels or placebo for 4 weeks, followed by an 8-week follow-up period to evaluate safety and efficacy of the drug. Wound area reduction after 4 weeks of treatment will serve as the primary endpoint. Conclusion We consider our study protocol to be suitable to test topically administered APOSEC in patients suffering from diabetic foot ulcers in a clinical phase I/II trial. Trial registration EudraCT 2018-001653-27. Registered on 30 July 2019. ClinicalTrials.gov NCT04277598. Registered on 20 February 2020. Title: “A randomized, placebo-controlled, double-blind study to evaluate safety and dose-dependent clinical efficacy of APO-2 at three different doses in patients with diabetic foot ulcer (MARSYAS II)” Supplementary Information The online version contains supplementary material available at 10.1186/s13063-020-04948-1.
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Affiliation(s)
- Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Aposcience AG, Vienna, Austria
| | | | - Helmut Hofbauer
- Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Aposcience AG, Vienna, Austria
| | - Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Aposcience AG, Vienna, Austria
| | - Franz Trautinger
- Clinical Department for Skin and Venereal Diseases, Universitaetsklinikum St.Poelten, St. Poelten, Austria
| | | | | | - Marcus Seibold
- Aposcience AG, Vienna, Austria.,Austrian Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Wolfram Hoetzenecker
- Department of Dermatology and Venerology, Kepler University Hospital, Linz, Austria
| | - Christiane Dreschl
- Department of Surgery, Krankenhaus der Elisabethinen Klagenfurt, Klagenfurt, Austria
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria. .,Aposcience AG, Vienna, Austria.
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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.
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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
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15
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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.
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16
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Groppa E, Colliva A, Vuerich R, Kocijan T, Zacchigna S. Immune Cell Therapies to Improve Regeneration and Revascularization of Non-Healing Wounds. Int J Mol Sci 2020; 21:E5235. [PMID: 32718071 PMCID: PMC7432547 DOI: 10.3390/ijms21155235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/20/2022] Open
Abstract
With the increased prevalence of chronic diseases, non-healing wounds place a significant burden on the health system and the quality of life of affected patients. Non-healing wounds are full-thickness skin lesions that persist for months or years. While several factors contribute to their pathogenesis, all non-healing wounds consistently demonstrate inadequate vascularization, resulting in the poor supply of oxygen, nutrients, and growth factors at the level of the lesion. Most existing therapies rely on the use of dermal substitutes, which help the re-epithelialization of the lesion by mimicking a pro-regenerative extracellular matrix. However, in most patients, this approach is not efficient, as non-healing wounds principally affect individuals afflicted with vascular disorders, such as peripheral artery disease and/or diabetes. Over the last 25 years, innovative therapies have been proposed with the aim of fostering the regenerative potential of multiple immune cell types. This can be achieved by promoting cell mobilization into the circulation, their recruitment to the wound site, modulation of their local activity, or their direct injection into the wound. In this review, we summarize preclinical and clinical studies that have explored the potential of various populations of immune cells to promote skin regeneration in non-healing wounds and critically discuss the current limitations that prevent the adoption of these therapies in the clinics.
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Affiliation(s)
- Elena Groppa
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy; (E.G.); (A.C.); (R.V.); (T.K.)
| | - Andrea Colliva
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy; (E.G.); (A.C.); (R.V.); (T.K.)
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Roman Vuerich
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy; (E.G.); (A.C.); (R.V.); (T.K.)
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Tea Kocijan
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy; (E.G.); (A.C.); (R.V.); (T.K.)
| | - Serena Zacchigna
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy; (E.G.); (A.C.); (R.V.); (T.K.)
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34127 Trieste, Italy
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17
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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.
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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:
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18
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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).
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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.
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19
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Laggner M, Gugerell A, Bachmann C, Hofbauer H, Vorstandlechner V, Seibold M, Gouya Lechner G, Peterbauer A, Madlener S, Demyanets S, Sorgenfrey D, Ostler T, Erb M, Mildner M, Ankersmit HJ. Reproducibility of GMP-compliant production of therapeutic stressed peripheral blood mononuclear cell-derived secretomes, a novel class of biological medicinal products. Stem Cell Res Ther 2020; 11:9. [PMID: 31900195 PMCID: PMC6942406 DOI: 10.1186/s13287-019-1524-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/29/2019] [Accepted: 12/10/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The recent concept of secretome-based tissue regeneration has profoundly altered the field of regenerative medicine and offers promising novel therapeutic options. In contrast to medicinal products with a single active substance, cell-derived secretomes comprise pleiotropic bioactive ingredients, representing a major obstacle for reproducible drug product efficacy and warranting patient safety. Good manufacturing practice (GMP)-compliant production guarantees high batch-to-batch consistency and reproducible efficacy of biological medicinal products, but different batches of cellular secretomes produced under GMP have not been compared yet, and suitable quality control parameters have not been established. To this end, we analyzed diverse biological and functional parameters of different batches produced under GMP of the secretome obtained from γ-irradiated peripheral blood mononuclear cells with proven tissue regenerative properties in infarcted myocardium, stroke, spinal cord injury, and skin wounds. METHODS We quantified key secretome ingredients, including cytokines, lipids, and extracellular vesicles, and functionally assessed potency in tube formation assay, ex vivo aortic ring sprouting assay, and cell-based protein and reporter gene assays. Furthermore, we determined secretome stability in different batches after 6 months of storage at various ambient temperatures. RESULTS We observed that inter-batch differences in the bioactive components and secretome properties were small despite considerable differences in protein concentrations and potencies between individual donor secretomes. Stability tests showed that the analytical and functional properties of the secretomes remained stable when lyophilisates were stored at temperatures up to + 5 °C for 6 months. CONCLUSIONS We are the first to demonstrate the consistent production of cell-derived, yet cell-free secretome as a biological medicinal product. The results from this study provide the basis for selecting appropriate quality control parameters for GMP-compliant production of therapeutic cell secretomes and pave the way for future clinical trials employing secretomes in tissue regenerative medicine.
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Affiliation(s)
- Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | | | - Helmut Hofbauer
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Vera Vorstandlechner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | | | | | - Anja Peterbauer
- Austrian Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Sibylle Madlener
- Molecular Neuro-Oncology, Department of Pediatrics and Adolescent Medicine and Institute of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Cancer Center of the Medical University of Vienna, Vienna, Austria
| | - Svitlana Demyanets
- Department for Laboratory Medicine at the Medical University of Vienna, Vienna, Austria
| | | | - Tobias Ostler
- SYNLAB Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - Michael Erb
- SYNLAB Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
- Aposcience AG, Vienna, Austria.
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20
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Gugerell A, Sorgenfrey D, Laggner M, Raimann J, Peterbauer A, Bormann D, Suessner S, Gabriel C, Moser B, Ostler T, Mildner M, Ankersmit HJ. Viral safety of APOSECTM: a novel peripheral blood mononuclear cell derived-biological for regenerative medicine. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2020; 18:30-39. [PMID: 30865581 PMCID: PMC7053523 DOI: 10.2450/2019.0249-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [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.
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Affiliation(s)
- Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | | | - Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Jürgen Raimann
- Charles River Laboratories Germany GmbH (CRL), Cologne, Germany
| | - Anja Peterbauer
- Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Daniel Bormann
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Susanne Suessner
- Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Christian Gabriel
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
| | - Bernhard Moser
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Tobias Ostler
- SYNLAB Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - 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
- Wiener Wirtschaftsagentur Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
- Austrian Research Promotion Agency FFG Projects 852748 and 862068 "APOSEC", Medical University Vienna, Vienna, Austria
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21
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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.
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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.
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22
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Öhnstedt E, Lofton Tomenius H, Vågesjö E, Phillipson M. The discovery and development of topical medicines for wound healing. Expert Opin Drug Discov 2019; 14:485-497. [PMID: 30870037 DOI: 10.1080/17460441.2019.1588879] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Chronic, nonhealing skin wounds claim >3% of the health-care budget in industrialized countries, and the incidence is rising. Currently, two parallel trends influence innovations within the field of wound healing: the need to reduce spread of antibiotic resistance and the emerging use of health economy and value-based models. Areas covered: This review focuses on the discovery of drug candidates and development of treatments aiming to enhance wound healing in the heterogeneous group of patients with nonhealing wounds. Expert opinion: Nonhealing wounds are multifaceted and recognized as difficult indications. The majority of products currently in use are medical device dressings, or concepts of negative pressure or hyperbaric oxygen treatment. Global best practice guidelines for the treatment of diabetic foot ulcers recommend debridement, redressing, as well as infection control, and are critical to the lack of coherent clinical evidence for many approved products in active wound care. To accelerate wound healing, there is an emerging trend toward biologics, gene therapy, and novel concepts for drug delivery in research and in the pipeline for clinical trials. Scientific delineation of the therapeutic mechanism of action is, in our opinion, vital for clinical trial success and for an increased fraction of medical products in the pharmaceutical pipeline.
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Affiliation(s)
- E Öhnstedt
- a Department of Medical Cell Biology , Uppsala University , Uppsala , Sweden.,b Ilya Pharma AB , Dag Hammarskiölds väg, Uppsala , Sweden
| | - H Lofton Tomenius
- a Department of Medical Cell Biology , Uppsala University , Uppsala , Sweden.,b Ilya Pharma AB , Dag Hammarskiölds väg, Uppsala , Sweden
| | - E Vågesjö
- b Ilya Pharma AB , Dag Hammarskiölds väg, Uppsala , Sweden
| | - M Phillipson
- a Department of Medical Cell Biology , Uppsala University , Uppsala , Sweden.,b Ilya Pharma AB , Dag Hammarskiölds väg, Uppsala , Sweden
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23
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Yang X, Kang N, Toyofuku WM, Scott MD. Enhancing the pro-inflammatory anti-cancer T cell response via biomanufactured, secretome-based, immunotherapeutics. Immunobiology 2019; 224:270-284. [PMID: 30711357 DOI: 10.1016/j.imbio.2018.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 12/24/2022]
Abstract
T lymphocytes play a critical role in the pro-inflammatory anti-cancer response; hence, significant pharmacologic efforts have been made to enhance the endogenous T cell response. Unfortunately, significant toxicity arises consequent to pan T cell activation. In contrast, the less robust T cell alloresponse has also demonstrated an anti-cancer effect, but poses an inherent risk of GvHD. To overcome the GvHD risk, an acellular pro-inflammatory agent (IA1) has been biomanufactured from the secretome of the allorecognition response. To assess IA1's immunomodulatory activity, T cell proliferation and differentiation were determined in vitro. The pro-inflammatory properties of the IA1 therapeutic were mediated by the miRNA-enriched fractions. Moreover, cross-species efficacy was observed consequent to the evolutionary conservation of miRNA. IA1 exerted no toxicity to resting PBMC but induced significant proliferation of resting CD3+ (CD4+ and CD8+) T cells and skewed the response towards a pro-inflammatory state (i.e., increased Teff:Treg ratio). Crucially, IA1-activated PBMC demonstrated a potent inhibition of cancer cell (HeLa and SH-4 melanoma) proliferation relative to the resting PBMC. The anti-proliferation effect of IA1-activated PBMC was noted within ˜12 h versus 4-5 days for resting cells. A second biomanufactured therapeutic (IA2; produced using HeLa cells) surprisingly demonstrated direct toxicity to cancer cells but was less effective than IA1 in inducing a cell-mediated response. This study demonstrates that miRNA-enriched therapeutics can be biomanufactured from the secretome and can induce a potent pro-inflammatory, anti-cancer, effect on resting lymphocytes.
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Affiliation(s)
- Xining Yang
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada; University of British Columbia Centre for Blood Research, Canada
| | - Ning Kang
- University of British Columbia Centre for Blood Research, Canada; Canadian Blood Services, Canada
| | - Wendy M Toyofuku
- University of British Columbia Centre for Blood Research, Canada; Canadian Blood Services, Canada
| | - Mark D Scott
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada; University of British Columbia Centre for Blood Research, Canada; Canadian Blood Services, Canada.
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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.
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