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Valikhov MP, Chadin AV, Shport SV. The Influence of Exosomes Derived from Mesenchymal Stem Cells on the Development of Fibrosis In Vitro. Bull Exp Biol Med 2023; 176:253-259. [PMID: 38198101 DOI: 10.1007/s10517-024-06005-2] [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: 12/15/2022] [Indexed: 01/11/2024]
Abstract
We studied the effect of exosomes derived from mesenchymal stem cells on the synthesis of collagen I and α-smooth muscle actin (α-SMA) by rat fibroblast culture. Exosomes were isolated from the verified culture of mesenchymal stem cells and also verified. Fibrosis was modeled using a fibroblast culture supplemented with recombinant TGF-β1 (5 ng/ml) and immunocytochemical analysis of the expression of collagen I and α-SMA markers was carried out. After 6-day incubation, the expression of the studied markers increased in comparison with the control. Addition of exosomes to the fibroblast culture reduced the production of collagen and SMA, which allows considering exosomes as a promising drug for the treatment of pathologies associated with fibrosis.
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Affiliation(s)
- M P Valikhov
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - A V Chadin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - S V Shport
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
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Yavuz A, Gok H, Yangi K, Celik SE, Percinoglu G, Goksu K. High-Frequency Bipolar Coagulation Limits Epidural Fibrosis in Lumbar Microdiscectomy. Cureus 2023; 15:e45077. [PMID: 37705564 PMCID: PMC10495867 DOI: 10.7759/cureus.45077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND AND AIM We propose a vast study to examine the effect of high-frequency bipolar coagulation used in the operating room to prevent the development of epidural fibrosis after lumbar microdiscectomy. MATERIALS AND METHODS A total of 1004 participants were divided into two groups: no high-frequency bipolar coagulation (NC group) and high-frequency bipolar coagulation (C group). Postoperative epidural fibrosis, infection rates, reoperation status, and dural injury complications during the operation were recorded. RESULTS Considering the epidural fibrosis rates of the two groups, epidural fibrosis was seen in 10.6% of the patients in the NC group. In contrast, it was seen in only 6.2% of the patients in the C group. CONCLUSION The complication of epidural fibrosis that develops after lumbar microsurgery operations both impairs patient comfort and brings with it the complications of reoperation. After performing hemostasis with bipolar, coagulating the annulus may effectively reduce epidural fibrosis and prevent reoperation.
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Affiliation(s)
- Ahmed Yavuz
- Neurosurgery, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, TUR
| | - Haydar Gok
- Neurological Surgery, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, TUR
| | - Kivanc Yangi
- Neurological Surgery, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, TUR
| | - Suat Erol Celik
- Neurological Surgery, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, TUR
| | - Gokhan Percinoglu
- Neurological Surgery, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, TUR
| | - Kamber Goksu
- Radiology, University of Health Sciences, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, TUR
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Yang L, Gao Q, Lv F, Guo M, Zhao D. miR‑519d‑3p promotes TGFβ/Smad mediated postoperative epidural scar formation via suppression of BAMBI. Mol Med Rep 2019; 20:3901-3909. [PMID: 31485673 DOI: 10.3892/mmr.2019.10630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 03/13/2018] [Indexed: 11/05/2022] Open
Abstract
To investigate the role of microRNA (miR)‑519d‑3p in postoperative epidural scar formation and its regulation of the bone morphogenetic protein and activin membrane‑bound inhibitor (BAMBI), miR‑519d‑3p and BAMBI expression levels in the lumbar disc of patients who had undergone laminectomy were detected with reverse transcription‑quantitative polymerase chain reaction and western blotting. The results demonstrated that miR‑519d‑3p expression was significantly increased, whereas BAMBI expression was sharply reduced in the lumbar discs of patients suffering from epidural scars. Subsequently, the miR‑519d‑3p mimic was transfected into primary fibroblasts isolated from epidural scar tissues. Flow cytometric and Cell Countin Kit‑8 analyses indicated that overexpression of miR‑519d‑3p promoted the proliferation of fibroblasts, the production of tumor necrosis factor‑α and interleukin (IL)‑1α, and the expression of type I collagen (col I), α‑smooth muscle actin (α‑SMA) and fibronectin (FN). Downregulation of miR‑519d‑3p by the miR‑519d‑3p antagomir transfection had the opposite effect. Bioinformatics and luciferase reporter gene analyses demonstrated that BAMBI is a target gene of miR‑519d‑3p: miR‑519d‑3p directly binds to the 3'‑untranslated region of BAMBI mRNA and suppressed BAMBI protein expression. Finally, the pcDNA‑BAMBI vector and BAMBI small interfering RNA were respectively transfected into primary fibroblasts to overexpress and knockdown the BAMBI gene. It was demonstrated that BAMBI overexpression suppressed fibroblast proliferation, TNF‑α and IL‑1α production, and the expression of col I, α‑SMA and FN proteins, whereas, BAMBI knockdown had the opposite effect. In conclusion, it was noted that BAMBI is a target of miR‑519d‑3p and miR‑519d‑3p promotes transforming growth factor β/mothers against decapentaplegic homolog 9‑mediated postoperative epidural scar formation via suppression of BAMBI.
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Affiliation(s)
- Longbiao Yang
- Department of Orthopaedics, Central Hospital of Zibo Mining Refco Group Ltd., Zibo, Shandong 255120, P.R. China
| | - Qingyuan Gao
- Department of Orthopaedics, Central Hospital of Zibo Mining Refco Group Ltd., Zibo, Shandong 255120, P.R. China
| | - Feng Lv
- Department of Orthopaedics, Central Hospital of Zibo Mining Refco Group Ltd., Zibo, Shandong 255120, P.R. China
| | - Min Guo
- Department of Geriatrics, Central Hospital of Zibo Mining Refco Group Ltd., Zibo, Shandong 255120, P.R. China
| | - Dong Zhao
- Department of Orthopaedics, Central Hospital of Zibo Mining Refco Group Ltd., Zibo, Shandong 255120, P.R. China
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Chong K, Kwon WK, Kim JH, Park YK, Yoon W, Kim JH, Kwon TH, Moon HJ. Inflammation by activated macrophage-like THP-1 cells increases human dura mater cell adhesion with alteration of integrin α 2 β 1 and matrix metalloproteinase. J Orthop Res 2019; 37:706-716. [PMID: 30561137 DOI: 10.1002/jor.24207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 12/06/2018] [Indexed: 02/04/2023]
Abstract
This study was designed to investigate (i) extracellular matrix to specify adhesive substrates to human dura mater cell (hDMC); (ii) the alteration on adhesion-related molecules in hDMC; and (iii) secreted matrix metalloproteinases (MMPs) linked with extracellular matrix remodeling after exposure to inflammation. The hDMC was cultured from human dura mater tissue, and the studies were performed with hDMC after co-culturing with macrophage like THP-1 cells (Mϕ). The adhesion of co-cultured hDMC through collagen I increased 6.4-fold and through collagen IV increased 5.0-fold compared with the adhesion of naïve cells (p < 0.001). Integrin subtype α2 β1 expression was increased 6.3-fold (p < 0.001) and α1 expression was decreased 2.0-fold (p < 0.001) in the co-cultured cells compared with the naïve cells. Co-culturing induced significant increases in MMP-1 (13.9-fold, p < 0.01), MMP-3 (7.6-fold, p < 0.01), and VEGF (VEGF: 3.8-fold, p < 0.05) expression and decreases in MMP-9 (0.1-fold, p < 0.01) compared with the sum of naïve hDMC and Mϕ values. Increased hDMC adhesion under inflammatory conditions is caused by an increased cellular affinity for collagen I and IV mediated by increased hDMC levels of integrin subtype α2 β1 and environmental MMP-1, -3 and decreased MMP-9. Selective integrin subtype α2 β1 inhibition assay showed 37.8% and 35.7% reduction in adhesion of co-cultured hDMC to collagen I (p < 0.001) and IV (p = 0.057), respectively. The present study provides insight into the pathological conditions related to dura mater adhesion in inflammation. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 9999:1-11, 2019.
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Affiliation(s)
- Kyuha Chong
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Woo-Keun Kwon
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.,Spine Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Joo Han Kim
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.,Spine Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Youn-Kwan Park
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.,Spine Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Wonki Yoon
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jong Hyun Kim
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Taek-Hyun Kwon
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hong Joo Moon
- Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.,Spine Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
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Tanriverdi O, Erdogan U, Tanik C, Yilmaz I, Gunaldi O, Adilay HU, Arslanhan A, Eseoglu M. Impact of sorafenib on epidural fibrosis: An immunohistochemical study. World J Clin Cases 2018; 6:249-258. [PMID: 30211205 PMCID: PMC6134279 DOI: 10.12998/wjcc.v6.i9.249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/23/2018] [Accepted: 08/01/2018] [Indexed: 02/05/2023] Open
Abstract
AIM To determine if sorafenib, an antineoplastic agent, could prevent the development of spinal epidural fibrosis (EF).
METHODS The study used CD105 and osteopontin antibodies in an immunohistochemical approach to quantify EF that occurred as a consequence of laminectomy in rats. Wistar albino rats (n = 16) were divided into two groups: control (L1-2 level laminectomy only) and sorafenib treatment (L1-2 level laminectomy + topical sorafenib). The animals were euthanatized after 6 wk, and the EF tissues were examined for histopathological changes after immunohistochemical staining. The EF grades were assigned to the tissues, and the treatment and control groups were compared.
RESULTS The EF thickness, inflammatory cell density, and arachnoid adherences determined by light microscopy were significantly higher in the control group compared to the sorafenib-treated group. Based on fibrosis scores, the extent of EF in the treatment group was significantly lower than in the controls. Immunohistochemical staining for CD105 to identify microvessels revealed that the EF grades based on vessel count were significantly lower in the treatment group. Staining for osteopontin did not show any significant differences between the groups in terms of the extent of EF. The staging of EF based on vascular counts observed after immunohistochemical staining for CD105, but not for osteopontin, was compatible with conventional staging methods. Neither toxic effects on tissues nor systemic side effects were observed with the use of sorafenib.
CONCLUSION Local administration of sorafenib significantly reduced post-laminectomy EF. Decreased neovascularization in spinal tissue may be due to the sorafenib-induced inhibition of vascular endothelial growth factor.
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Affiliation(s)
- Osman Tanriverdi
- Department of Neurosurgery and Psychiatry, University of Health Sciences, Bakırky Prof. Dr. Mazhar Osman Training and Research Hospital for Neurology, İstanbul 34303, Turkey
| | - Uzay Erdogan
- Department of Neurosurgery and Psychiatry, University of Health Sciences, Bakırky Prof. Dr. Mazhar Osman Training and Research Hospital for Neurology, İstanbul 34303, Turkey
| | - Canan Tanik
- Department of Pathology, University of Health Sciences, Şişli Hamidiye Etfal Training and Research Hospital, İstanbul 34303, Turkey
| | - Ilhan Yilmaz
- Department of Neurosurgery, University of Health Sciences, Şişli Hamidiye Etfal Training and Research Hospital, İstanbul 34303, Turkey
| | - Omur Gunaldi
- Department of Neurosurgery and Psychiatry, University of Health Sciences, Bakırky Prof. Dr. Mazhar Osman Training and Research Hospital for Neurology, İstanbul 34303, Turkey
| | - Huseyin Utku Adilay
- Department of Neurosurgery, Medical Faculty, Balıkesir University, Balıkesir 31300, Turkey
| | - Ayca Arslanhan
- Institute of Neurological Science, Marmara University, İstanbul 34303, Turkey
| | - Metehan Eseoglu
- Department of Neurosurgery, Medical Faculty, Medipol University, İstanbul 34303, Turkey
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Toll-Like Receptor 9 Promotes Survival in SERCA2a KO Heart Failure Mice. Mediators Inflamm 2017; 2017:9450439. [PMID: 28490840 PMCID: PMC5405589 DOI: 10.1155/2017/9450439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/24/2017] [Accepted: 03/07/2017] [Indexed: 12/21/2022] Open
Abstract
Aim. Inflammation is important in heart failure (HF). The role of the immune receptor toll-like receptor 9 (TLR9) in HF is not understood and not investigated in diastolic HF. We investigated the role of TLR9 in a murine diastolic HF model caused by cardiomyocyte SERCA2a excision. Methods and Results. We crossed SERCA2a KO and TLR9 KO mice to generate four mouse lines. Tamoxifen-induced cardiomyocyte SERCA2a gene excision was carried out in mice, causing diastolic HF. After 7.6 weeks, cardiac functions and dimensions were analyzed by echocardiography and heart tissues were processed. HF mice depleted of TLR9 demonstrated reduced survival compared to SERC2a KO mice, with a median life expectancy of 58 days compared to 63 days. Both HF groups displayed increased left atrium size, lung weight, fetal gene expressions, monocyte/macrophage infiltration, and fibrosis. However, there were no significant differences between the groups. Conclusion. In mice with SERCA2a KO-induced diastolic HF, the absence of TLR9 reduced median life expectancy. The cause remains elusive, as all investigated HF parameters were unaltered. Still, these findings support a salutary role of TLR9 in some subsets of HF conditions and underline the importance for future studies on the mechanisms of TLR9 in diastolic HF.
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