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Eraslan M, Çerman E, Bozkurt S, Genç D, Virlan AT, Demir CS, Akkoç T, Karaöz E, Akkoç T. Mesenchymal stem cells differentiate to retinal ganglion-like cells in rat glaucoma model induced by polystyrene microspheres. Tissue Cell 2023; 84:102199. [PMID: 37633122 DOI: 10.1016/j.tice.2023.102199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 08/28/2023]
Abstract
AIM The study aimed to evaluate the differentiation ability of intravitreally injected rat bone marrow-derived mesenchymal stem cells (rBM-MSCs) to retinal ganglion-like cells in a polystyrene microsphere induced rat glaucoma model. MATERIALS AND METHODS The glaucoma rat model was generated via intracameral injection of 7 microliter polystyrene microspheres. Green fluorescence protein-labeled (GFP) rBM-MSCs were transplanted intravitreally at or after induction of ocular hypertension (OHT), depending on the groups. By the end of the fourth week, flat-mount retinal dissection was performed, and labeled against Brn3a, CD90, GFAP, CD11b, Vimentin, and localization of GFP positive rBM-MSCs was used for evaluation through immunofluorescence staining and to count differentiated retinal cells by flow cytometry. From 34 male Wistar albino rats, 56 eyes were investigated. RESULTS Flow cytometry revealed significantly increased CD90 and Brn3a positive cells in glaucoma induced and with rBM-MSC injected groups compared to control(P = 0.006 and P = 0.003 respectively), sham-operated (P = 0.007 and P < 0.001 respectively), and only rBM-MSCs injected groups (P = 0.002 and P = 0.009 respectively). Immunofluorescence microscopy revealed differentiation of GFP labeled stem cells to various retinal cells, including ganglion-like cells. rBM-MSCs were observable in ganglion cells, inner and outer nuclear retinal layers in rBM-MSCs injected eyes. CONCLUSION Intravitreally transplanted rBM-MSCs differentiated into retinal cells, including ganglion-like cells, which successfully created a glaucoma model damaged with polystyrene microspheres. Promisingly, MSCs may have a role in neuro-protection and neuro-regeneration treatment of glaucoma in the future.
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Affiliation(s)
- Muhsin Eraslan
- Department of Ophthalmology, Marmara University Faculty of Medicine, Istanbul, Turkey.
| | - Eren Çerman
- Department of Ophthalmology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Süheyla Bozkurt
- Department of Pathology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Deniz Genç
- Department of Pediatric Diseases, Faculty of Health Sciences, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Aysın Tulunay Virlan
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, Scotland, UK
| | - Cansu Subaşı Demir
- Center for Regenerative Medicine and Stem Cell Research & Manufacturing (LivMedCell), Istanbul, Turkey
| | - Tolga Akkoç
- Genetic Engineering and Biotechnology Institute, Tubitak Marmara Research Center, Kocaeli, Turkey
| | - Erdal Karaöz
- Department of Histology & Embryology, Istinye University Faculty of Medicine, Istanbul, Turkey; Center for Stem Cell and Tissue Engineering Research & Practice, Istinye University, Istanbul, Turkey
| | - Tunç Akkoç
- Department of Pediatric Allergy and Immunology, Marmara University Faculty of Medicine, Istanbul, Turkey; Department of Immunology, Marmara University Faculty of Medicine, Istanbul, Turkey; Marstem Cell Technologies, Marmara University Technopark, İstanbul, Turkey
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Topcu Sarica L, Zibandeh N, Genç D, Gül F, Akkoç T, Kombak EF, Cinel L, Akkoç T, Cinel I. Immunomodulatory and Tissue-preserving Effects of Human Dental Follicle Stem Cells in a Rat Cecal Ligation and Perforation Sepsis Model. Arch Med Res 2020; 51:397-405. [PMID: 32334851 DOI: 10.1016/j.arcmed.2020.04.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/19/2020] [Accepted: 04/10/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Mesenchymal stem cells may be used for the treatment of sepsis. Dental follicle stem cells (DFSCs) are easily accessible but have not been studied in vivo or in clinical trials in sepsis models. AIM OF THE STUDY We aim to elucidate DFSC effects on host immunological functions in a rat cecal ligation and perforation (CLP) sepsis model. METHODS Adult male rats were categorized into group 1 (sham procedure SP), group 2 (SP + 1 × 106 DFSCs administered 0 h after SP), group 3 (CLP + saline), group 4 (CLP + 1 × 106 DFSCs administered 0 h after CLP), and group 5 (CLP + 1 × 106 DFSCs administered 4 h after CLP). Green fluorescent protein-labeled cells were used for imaging. Histopathological examination of ileal tissues was performed. RESULTS A significant increase in the percentage of CD4+/CD25+/Foxp3+ Treg cells in groups 4 and 5 occurred compared with that in group 3. No significant changes in CD3+/CD4+ helper T-cells and CD3+/CD8+ cytotoxic T-cells were observed. Treatment with DFSCs at 4 h significantly decreased the level of TNF-α compared with that in group 3. No significant changes in IL-10 levels and lymphocyte proliferation suppression were observed. During histopathological examination, no high scoring (Chiu scores: 3 or 4) rats were observed in the curative treatment group (group 5). CONCLUSIONS Treatment with DFSC after 4 h of sepsis induction downregulates tissue inflammatory responses by decreasing TNF-α levels and increasing Treg cell ratio. This also has a protective effect on intestinal tissues during sepsis.
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Affiliation(s)
- Leyla Topcu Sarica
- Department of Anesthesiology and Reanimation, School of Medicine, Marmara University, Istanbul, Turkey
| | - Noushin Zibandeh
- Department of Allergy and Immunology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Deniz Genç
- Department of Allergy and Immunology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Fethi Gül
- Department of Anesthesiology and Reanimation, School of Medicine, Marmara University, Istanbul, Turkey
| | - Tolga Akkoç
- TUBITAK MRC Genetic Engineering and Biotechnology Institute, Gebze, Turkey
| | - Erdem Faruk Kombak
- Department of Pathology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Leyla Cinel
- Department of Pathology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Tunç Akkoç
- Department of Allergy and Immunology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Ismail Cinel
- Department of Anesthesiology and Reanimation, School of Medicine, Marmara University, Istanbul, Turkey.
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Genç D, Zibandeh N, Nain E, Arığ Ü, Göker K, Aydıner E, Akkoç T. IFN-γ stimulation of dental follicle mesenchymal stem cells modulates immune response of CD4 + T lymphocytes in Der p1 + asthmatic patients in vitro. Allergol Immunopathol (Madr) 2019; 47:467-476. [PMID: 30826066 DOI: 10.1016/j.aller.2018.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/22/2018] [Accepted: 12/29/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND House dust mite (Dermataphagoides pteronyssinus) is a widespread risk factor in the development of asthma. CD4+ T lymphocytes have an important role in the pathogenesis of allergic asthma by polarizing to Th2 cells. OBJECTIVE We aimed to evaluate the immunoregulatory effects of dental follicle mesenchymal stem cells with and without IFN-γ stimulation on peripheral blood mononuclear cells of house dust mite sensitive asthmatic patients, and compared those with Dexamethasone as a systemic steroid. MATERIAL AND METHODS PBMC of asthmatic patients and healthy individuals separately cultured with or without DF-MSCs in the presence and absence of IFN-γ or Der p1 or Dexamethasone for 72h. CD4+ T proliferation, cell viability, CD4+CD25+FoxP3+ Treg cell frequency and cytokine profiles of PBMC were evaluated via flow cytometry. RESULTS DF-MSCs suppressed proliferation of CD4+ T lymphocytes (pCDmix<0.01, pDerp1<0.01, pIFN<0.005) by increasing the number of FoxP3 expressing CD4+CD25+ T regulatory cells (pCDmix<0.005, pDerp1<0.01, pIFN<0.001) and suppressed lymphocyte apoptosis (pCDmix<0.05, pDerp1<0.05, pIFN<0.05), while Dexamethasone increased the apoptosis and decreased Treg cell frequency in asthmatic patients. IFN-γ stimulation increased the suppressive effect of DF-MSCs and also enhanced the frequency of FoxP3 expressing CD4+CD25+ T regulatory cells. The cytokine levels were regulated by DF-MSCs by reducing IL-4 cytokine levels (pCDmix<0.01, pDerp1<0.05, pIFN<0.05) and upregulating IFN-γ levels (pCDmix<0.01, pDerp1<0.05, pIFN<0.005) in asthmatic patients. CONCLUSION IFN-γ stimulated DF-MSCs were found to have a high modulatory effect on CD4+ T cell responses, while Dexamethasone had an apoptotic effect on CD4+ T cells in asthmatic patients. DF-MSCs may be a new cell-based therapy option for allergic diseases including asthma.
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Akkoç T, Genç D, Zibandeh N, Akkoç T. Intranasal ovalbumin immunotherapy with mycobacterial adjuvant promotes regulatory T cell accumulation in lung tissues. Microbiol Immunol 2018; 62:531-540. [PMID: 29989252 DOI: 10.1111/1348-0421.12634] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/04/2018] [Accepted: 06/17/2018] [Indexed: 12/24/2022]
Abstract
Allergen-specific immunotherapy to induce T regulatory cells in the periphery has been used to treat allergic diseases. Mycobacteria can be used as an adjuvant for inducing T regulatory cells. However, it is unclear whether intranasal immunotherapy in combination with Mycobacteria adjuvant induces regulatory T cell differentiation and attenuates allergic responses in vivo. To investigate the role of intranasal ovalbumin (OVA) treatment alone and in combination with Mycobacteria vaccae, proportions of FoxP3+ regulatory T cells and anti-inflammatory responses were evaluated in a murine model of asthma that was established in three groups of bicistronic Foxp3EGFP reporter BALB/c mice. Before establishment of the asthma model, two groups of mice received intranasal OVA immunotherapy and one also received simultaneous s.c. M. vaccae. Expression of CD4+ CD25+ Foxp3+EGFP+ T cells in the lung and spleen was analyzed by flow cytometry and the cytokine profiles of allergen-stimulated lung and spleen lymphocytes assessed. The intranasal OVA immunotherapy group showed greater expression of CD4+ CD25+ Foxp3+EGFP+ T cells in the spleen whereas in the group that also received M. vaccae such greater expression was demonstrated in the lung. Additionally, the proportion of IL-10 and IFN-γ-secreting splenocytes was greater in the intranasal OVA + M. vaccae group. CD25 neutralization decreased CD4+ Foxp3+ cells more than other groups. In parallel with this finding, production of IL-10 and IFN-γ was down-regulated. Mucosal administration of OVA antigen results in a greater proportion of CD4+ Foxp3+ T cells in the spleen. IL-10 and IFN-γ induced by intranasal OVA immunotherapy and M. vaccae administration is down-regulated after CD25 neutralization.
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Affiliation(s)
- Tunç Akkoç
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, İstanbul, Turkey
| | - Deniz Genç
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, İstanbul, Turkey
| | - Noushin Zibandeh
- Faculty of Medicine, Division of Pediatric Allergy and Immunology, Marmara University, İstanbul, Turkey
| | - Tolga Akkoç
- Scientific and Technological Research Council of Turkey, Marmara Research Center, Kocaeli, Turkey
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Genç D, Zibandeh N, Nain E, Gökalp M, Özen AO, Göker MK, Akkoç T. Dental follicle mesenchymal stem cells down-regulate Th2-mediated immune response in asthmatic patients mononuclear cells. Clin Exp Allergy 2018; 48:663-678. [PMID: 29498435 DOI: 10.1111/cea.13126] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 02/01/2018] [Accepted: 02/13/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Asthma is a chronic inflammatory disease in which inflammatory responses have the polarisation of CD4+ T cells to Th2 cells. Dental follicle mesenchymal stem cells (DFSCs) have strong anti-inflammatory properties comparable to other mesenchymal stem cells. OBJECTIVE We investigated the immunomodulatory effects of DFSCs on CD4+ T helper cell responses of asthmatic patients and compared the results with those obtained with asthmatic subjects on immunotherapy and with healthy individuals. METHOD Peripheral blood mononuclear cells (PBMC) were isolated from immunotherapy naïve asthmatics, asthmatics on subcutaneous Der p1 immunotherapy and from healthy individuals. PBMC were pre-conditioned with anti-CD3/anti-CD28 mAbs, Der p1 or IFN-γ in the presence and absence of DFSCs and analysed for T cell viability and proliferation, CD4+ CD25+ FOXP3+ regulatory T cell frequencies, cytokine expression, and GATA3, T bet and FoxP3 expressions. Neutralisation of TGF-β and blockade of IDO and PGE2 pathways were performed to determine suppressive signalling pathways of DFSCs. RESULTS Dental follicle mesenchymal stem cells suppressed proliferative responses of CD4+ T lymphocytes and increased the frequency of Treg cells. DFSCs decreased effector and effector memory CD4+ T cell phenotypes in favour of naïve T cell markers. DFSCs decreased IL-4 and GATA3 expression and increased IFN-γ, T-bet and IL-10 expression in asthmatics. Costimulatory molecules were suppressed in monocytes with DFSCs in the cocultures. DFSCs down-regulated inflammatory responses via IDO and TGF-β pathways in asthmatic patients. CONCLUSION Dental follicle mesenchymal stem cells suppressed allergen-induced Th2-cell polarisation in favour of Th1 responses and attenuated antigen-presenting cell co-stimulatory activities. These studies suggest that DFSC-based cell therapy may provide pro-tolerogenic immunomodulation relevant to allergic diseases such as asthma.
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Affiliation(s)
- D Genç
- Faculty of Medicine, Department of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - N Zibandeh
- Faculty of Medicine, Department of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - E Nain
- Faculty of Medicine, Department of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - M Gökalp
- Faculty of Medicine, Department of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - A O Özen
- Faculty of Medicine, Department of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
| | - M K Göker
- Faculty of Dentistry, Marmara University, Istanbul, Turkey
| | - T Akkoç
- Faculty of Medicine, Department of Pediatric Allergy and Immunology, Marmara University, Istanbul, Turkey
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Çerman E, Akkoç T, Eraslan M, Şahin Ö, Özkara S, Vardar Aker F, Subaşı C, Karaöz E, Akkoç T. Correction: Retinal Electrophysiological Effects of Intravitreal Bone Marrow Derived Mesenchymal Stem Cells in Streptozotocin Induced Diabetic Rats. PLoS One 2016; 11:e0165219. [PMID: 27755590 PMCID: PMC5068793 DOI: 10.1371/journal.pone.0165219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Çerman E, Akkoç T, Eraslan M, Şahin Ö, Özkara S, Vardar Aker F, Subaşı C, Karaöz E, Akkoç T. Retinal Electrophysiological Effects of Intravitreal Bone Marrow Derived Mesenchymal Stem Cells in Streptozotocin Induced Diabetic Rats. PLoS One 2016; 11:e0156495. [PMID: 27300133 PMCID: PMC4907488 DOI: 10.1371/journal.pone.0156495] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 05/16/2016] [Indexed: 01/09/2023] Open
Abstract
Diabetic retinopathy is the most common cause of legal blindness in developed countries at middle age adults. In this study diabetes was induced by streptozotocin (STZ) in male Wistar albino rats. After 3 months of diabetes, rights eye were injected intravitreally with green fluorescein protein (GFP) labelled bone marrow derived stem cells (BMSC) and left eyes with balanced salt solution (Sham). Animals were grouped as Baseline (n = 51), Diabetic (n = 45), Diabetic+BMSC (n = 45 eyes), Diabetic+Sham (n = 45 eyes), Healthy+BMSC (n = 6 eyes), Healthy+Sham (n = 6 eyes). Immunohistology analysis showed an increased retinal gliosis in the Diabetic group, compared to Baseline group, which was assessed with GFAP and vimentin expression. In the immunofluorescence analysis BMSC were observed to integrate mostly into the inner retina and expressing GFP. Diabetic group had prominently lower oscillatory potential wave amplitudes than the Baseline group. Three weeks after intravitreal injection Diabetic+BMSC group had significantly better amplitudes than the Diabetic+Sham group. Taken together intravitreal BMSC were thought to improve visual function.
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Affiliation(s)
- Eren Çerman
- Marmara University School of Medicine, Department of Ophthalmology, Istanbul, Turkey
- * E-mail:
| | - Tolga Akkoç
- Genetic Engineering and Biotechnology Institution, The Scientific and Technological Research Council of Turkey, Kocaeli, Turkey
| | - Muhsin Eraslan
- Marmara University School of Medicine, Department of Ophthalmology, Istanbul, Turkey
| | - Özlem Şahin
- Marmara University School of Medicine, Department of Ophthalmology, Istanbul, Turkey
| | - Selvinaz Özkara
- Haydarpaşa Numune Education and Research Hospital, Department of Pathology, Istanbul, Turkey
| | - Fugen Vardar Aker
- Haydarpaşa Numune Education and Research Hospital, Department of Pathology, Istanbul, Turkey
| | - Cansu Subaşı
- Kocaeli University Center for Stem Cell and Gene Therapies, Kocaeli, Turkey
| | - Erdal Karaöz
- Kocaeli University Center for Stem Cell and Gene Therapies, Kocaeli, Turkey
| | - Tunç Akkoç
- Marmara University School of Medicine, Department of Pediatric Allergy and Immunology, Istanbul, Turkey
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Bagis H, Akkoç T, Tasş A, Aktoprakligil D. Cryogenic effect of antifreeze protein on transgenic mouse ovaries and the production of live offspring by orthotopic transplantation of cryopreserved mouse ovaries. Mol Reprod Dev 2007; 75:608-13. [PMID: 17874447 DOI: 10.1002/mrd.20799] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The purpose of the present study was to evaluate the cryogenic effect of antifreeze protein (AFP) on transgenic mouse ovaries which is expressed AFP type III from Ocean pout and the production of live offspring by orthotopic transplantation of cryopreserved mouse ovaries. In this study, whole transgenic and nontransgenic mouse ovaries were vitrified with 20% DMSO and 20% EG in M2 medium supplemented with 0.5 M sucrose. All vitrified and toxicity control and fresh ovaries were transplanted orthotopically into ovariectomized recipients bilaterally. For fresh ovaries transplantation, 5 mice delivered litters of 18 and 19 live pups in first and second matings, respectively. For toxicity control of chemicals, 6 mice delivered litters of 22 and 23 live pups. For nontransgenic mouse ovaries (vitrified) transplantation, 7 mice delivered litters of 22 and 23 live pups. For transgenic mouse ovaries (vitrified) transplantation, 10 mice delivered litters of 35 and 37 live pups. Litter sizes from pups of freshly transplanted ovaries were not significantly different from AFP-transplanted transgenic ovaries but those from nontransgenic-transplanted ovaries were significantly different from the AFP-transplanted transgenic ovaries group (P < 0.05). In this study, for the first time, it was shown that the ovarian tissue of AFP transgenic mice was protected from cryopreservation by vitrification. These results demonstrate that a normal reproductive lifespan can be restored by orthotopic transplantation of AFP transgenic-vitrified ovary.
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Affiliation(s)
- Haydar Bagis
- TUBITAK, Marmara Research Center, Genetic Engineering and Biotechnology Institute, Transgenic Core Facility, Kocaeli, Turkey.
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Abstract
A murine model of allergen-induced airway inflammation, epithelial phenotypic changes, and total immunoglobulin E (IgE) levels is described. Mice were sensitized to ovalbumin without adjuvant and challenged by multiple intratracheal instillations of ovalbumin by a nonsurgical technique. After repeated challenges, the basement membrane of the airway epithelium showed fibrosis, inflammatory cell infiltration at peribronchial and perivascular sites, and goblet cell hyperplasia. In addition, total IgE levels were found to be increased significantly. Further studies which will evaluate the contribution of each feature of remodeled airway to the natural history of asthma are definitely needed.
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Affiliation(s)
- T Akkoç
- Pediatric Allergy and Immunology Department, Marmara University Hospital, Istanbul, Turkey.
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