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Liu G, Liang J, Li W, Jiang S, Song M, Xu S, Du Q, Wang L, Wang X, Liu X, Tang L, Yang Z, Zhou M, Meng H, Zhang L, Yang Y, Zhang B. The protective effect of erythropoietin and its novel derived peptides in peripheral nerve injury. Int Immunopharmacol 2024; 138:112452. [PMID: 38943972 DOI: 10.1016/j.intimp.2024.112452] [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: 03/28/2024] [Revised: 05/23/2024] [Accepted: 06/07/2024] [Indexed: 07/01/2024]
Abstract
Peripheral nerve injury seriously endangers human life and health, but there is no clinical drug for the treatment of peripheral nerve injury, so it is imperative to develop drugs to promote the repair of peripheral nerve injury. Erythropoietin (EPO) not only has the traditional role of promoting erythropoiesis, but also has a tissue-protective effect. Over the past few decades, researchers have confirmed that EPO has neuroprotective effects. However, side effects caused by long-term use of EPO limited its clinical application. Therefore, EPO derivatives with low side effects have been explored. Among them, ARA290 has shown significant protective effects on the nervous system, but the biggest disadvantage of ARA290, its short half-life, limits its application. To address the short half-life issue, the researchers modified ARA290 with thioether cyclization to generate a thioether cyclized helical B peptide (CHBP). ARA290 and CHBP have promising applications as peptide drugs. The neuroprotective effects they exhibit have attracted continuous exploration of their mechanisms of action. This article will review the research on the role of EPO, ARA290 and CHBP in the nervous system around this developmental process, and provide a certain reference for the subsequent research.
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Affiliation(s)
- Guixian Liu
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Jie Liang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Wei Li
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Suli Jiang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Meiying Song
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Shuo Xu
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Qiaochu Du
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Luoyang Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Xiao Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Xiaoli Liu
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Lei Tang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Zijie Yang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Mengting Zhou
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Haining Meng
- Department of Emergency Medicine, Medical College of Qingdao University, Qingdao, Shandong 266071, PR China
| | - Li Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Bei Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266071, PR China.
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Shao J, Nie P, Yang W, Guo R, Ding D, Liang R, Wei B, Wei H. An
EPO
‐loaded multifunctional hydrogel synergizing with adipose‐derived stem cells restores neurogenic erectile function via enhancing nerve regeneration and penile rehabilitation. Bioeng Transl Med 2022; 7:e10319. [PMID: 36176612 PMCID: PMC9471998 DOI: 10.1002/btm2.10319] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/23/2022] [Accepted: 03/11/2022] [Indexed: 12/02/2022] Open
Abstract
Neurogenic erectile dysfunction (nED) is one of the most common and intractable postoperative complications of rectal and prostate cancer surgery and sometimes accompanies patients lifelong. The transplantation of stem cells has been proved a promising way for treatment. However, the therapeutic efficacy is severely impaired by excessive cell loss and death and poor accumulation in the injury site along with the traditional implantation strategy. Herein, an EPO‐loaded multifunctional hydrogel was designed. The hydrogels' adhesive property and mechanical strength were enhanced by adding catechol‐catechol adducts, thus significantly improving adipose‐derived stem cells (ADSC) retention and rescuing cell loss in the injury site. Meanwhile, the sustained release of EPO effectively ameliorated the viability and paracrine activity of ADSC, leading to enhanced migration of Schwann cells and differentiation of PC12 cells in vivo. On a bilateral cavernous nerve injury rat model, the present stem cell‐EPO‐hydrogel implanted strategy could significantly alleviate erectile dysfunction. The higher expression of Tuj1 and lower expression of GFAP in the major pelvic ganglia (MPG) indicated the acceleration of neural differentiation while the suppressing development of astrocytes. Also, the combined therapy restored the expression levels of eNOs, nNOs, and α‐SMA in penile tissues, suggesting the rehabilitation of the penis. Further analysis of Masson trichrome staining and apoptosis evaluation of the corpus cavernosum showed the preservation of vascular endothelium content and the prevention of penile fibrosis after denervation. Overall, we believe that this combined strategy presents a promising way not only for restoring neurogenic erectile function but also for the clinical translation of stem cell therapy.
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Affiliation(s)
- Jun Shao
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Pan Nie
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Wende Yang
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering Jinan University Guangzhou China
| | - Dongbing Ding
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Rongpu Liang
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Bo Wei
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Hongbo Wei
- Department of Gastrointestinal Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou China
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Pandya M, Saxon M, Bozanich J, Tillberg C, Luan X, Diekwisch TG. The Glycoprotein/Cytokine Erythropoietin Promotes Rapid Alveolar Ridge Regeneration In Vivo by Promoting New Bone Extracellular Matrix Deposition in Conjunction with Coupled Angiogenesis/Osteogenesis. Int J Mol Sci 2021; 22:2788. [PMID: 33801825 PMCID: PMC8002021 DOI: 10.3390/ijms22062788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 12/20/2022] Open
Abstract
The loss of bone following tooth extraction poses a significant clinical problem for maxillofacial esthetics, function, and future implant placement. In the present study, the efficacy of an erythropoietin-impregnated collagen scaffold as an alveolar ridge augmentation material versus a conventional collagen scaffold and a BioOss inorganic bovine bone xenograft was examined. The collagen/Erythropoietin (EPO) scaffold exhibited significantly more rapid and complete osseous regeneration of the alveolar defect when compared to bone xenograft and the collagen membrane alone. The new EPO induced extracellular matrix was rich in Collagen I, Collagen III, Fibronectin (Fn) and E-cadherin, and featured significantly increased levels of the osteogenic transcription factors Runt-related transcription factor 2 (Runx2) and Osterix (Osx). Histomorphometric evaluation revealed a significant two-fold increase in the number of capillaries between the EPO and the BioOss group. Moreover, there was a highly significant 3.5-fold higher level of vascular endothelial growth factor (VEGF) in the collagen/EPO-treated group compared to controls. The significant effect of EPO on VEGF, FN, and RUNX2 upregulation was confirmed in vitro, and VEGF pathway analysis using VEGF inhibitors confirmed that EPO modulated extracellular matrix protein expression through VEGF even in the absence of blood vessels. Together, these data demonstrate the effectiveness of an EPO-impregnated collagen scaffold for bone regeneration as it induces rapid matrix production and osseoinduction adjacent to new capillaries via VEGF.
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Affiliation(s)
- Mirali Pandya
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - Matthew Saxon
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - John Bozanich
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - Connie Tillberg
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
| | - Xianghong Luan
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
| | - Thomas G.H. Diekwisch
- Center for Craniofacial Research and Diagnosis, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.P.); (C.T.); (X.L.)
- Department of Periodontics, Texas A&M College of Dentistry, 3302 Gaston Avenue, Dallas, TX 75246, USA; (M.S.); (J.B.)
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Lee JI, Hur JM, You J, Lee DH. Functional recovery with histomorphometric analysis of nerves and muscles after combination treatment with erythropoietin and dexamethasone in acute peripheral nerve injury. PLoS One 2020; 15:e0238208. [PMID: 32881928 PMCID: PMC7470391 DOI: 10.1371/journal.pone.0238208] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/11/2020] [Indexed: 12/21/2022] Open
Abstract
Introduction Peripheral nerve injury (PNI) often leads to significant functional loss in patients and poses a challenge to physicians since treatment options for improving functional outcomes are limited. Recent studies suggest that erythropoietin and glucocoticoids have beneficial effects as mediators of neuro-regenerative processes. We hypothesized that combination treatment with erythropoietin and glucocoticoids would have a synergistic effect on functional outcome after PNI. Materials and methods Sciatic nerve crush injury was simulated in ten-week-old male C57BL/6 mice. The mice were divided into four groups according to the type of drugs administered (control, erythropoietin, dexamethasone, and erythropoietin with dexamethasone). Motor functional recovery was monitored by walking track analysis at serial time points up to 28 days after injury. Morphological analysis of the nerve was performed by immunofluorescent staining for neurofilament (NF) heavy chain and myelin protein zero (P0) in cross-sectional and whole-mount nerve preparations. Additionally, morphological analysis of the muscle was performed by Hematoxylin and eosin staining. Results Combination treatment with erythropoietin and dexamethasone significantly improved the sciatic functional index at 3, 7, 14, and 28 days after injury. Fluorescence microscopy of cross sectional nerve revealed that the combination treatment increased the ratio of P0/NF-expressing axons. Furthermore, confocal microscopy of the whole-mount nerve revealed that the combination treatment increased the fluorescence intensity of P0 expression. The cross-sectional area and minimum Feret’s diameter of the muscle fibers were significantly larger in the mice which received combination treatment than those in the controls. Conclusion Our results demonstrated that combination treatment with erythropoietin and dexamethasone accelerates functional recovery and reduces neurogenic muscle atrophy caused by PNI in mice, which may be attributed to the preservation of myelin and Schwann cell re-myelination. These findings may provide practical therapeutic options for patients with acute PNI.
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Affiliation(s)
- Jung Il Lee
- Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
- College of Medicine, Hanyang University, Seoul, South Korea
- * E-mail:
| | - Jeong Min Hur
- Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
| | - Jooyoung You
- Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
| | - Duk Hee Lee
- Department of Emergency Medicine, Ewha Women's University Mokdong Hospital, Seoul, South Korea
- College of Medicine, Ewha Women's University, Seoul, South Korea
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5
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Min Q, Parkinson DB, Dun XP. Migrating Schwann cells direct axon regeneration within the peripheral nerve bridge. Glia 2020; 69:235-254. [PMID: 32697392 DOI: 10.1002/glia.23892] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 12/12/2022]
Abstract
Schwann cells within the peripheral nervous system possess a remarkable regenerative potential. Current research shows that peripheral nerve-associated Schwann cells possess the capacity to promote repair of multiple tissues including peripheral nerve gap bridging, skin wound healing, digit tip repair as well as tooth regeneration. One of the key features of the specialized repair Schwann cells is that they become highly motile. They not only migrate into the area of damaged tissue and become a key component of regenerating tissue but also secrete signaling molecules to attract macrophages, support neuronal survival, promote axonal regrowth, activate local mesenchymal stem cells, and interact with other cell types. Currently, the importance of migratory Schwann cells in tissue regeneration is most evident in the case of a peripheral nerve transection injury. Following nerve transection, Schwann cells from both proximal and distal nerve stumps migrate into the nerve bridge and form Schwann cell cords to guide axon regeneration. The formation of Schwann cell cords in the nerve bridge is key to successful peripheral nerve repair following transection injury. In this review, we first examine nerve bridge formation and the behavior of Schwann cell migration in the nerve bridge, and then discuss how migrating Schwann cells direct regenerating axons into the distal nerve. We also review the current understanding of signals that could activate Schwann cell migration and signals that Schwann cells utilize to direct axon regeneration. Understanding the molecular mechanism of Schwann cell migration could potentially offer new therapeutic strategies for peripheral nerve repair.
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Affiliation(s)
- Qing Min
- School of Pharmacy, Hubei University of Science and Technology, Xianning, Hubei Province, People's Republic of China
| | - David B Parkinson
- Peninsula Medical School, Faculty of Health, Plymouth University, Plymouth, Devon, UK
| | - Xin-Peng Dun
- School of Pharmacy, Hubei University of Science and Technology, Xianning, Hubei Province, People's Republic of China
- Peninsula Medical School, Faculty of Health, Plymouth University, Plymouth, Devon, UK
- The Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, People's Republic of China
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6
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Shiga Y, Shiga A, Mesci P, Kwon H, Brifault C, Kim JH, Jeziorski JJ, Nasamran C, Ohtori S, Muotri AR, Gonias SL, Campana WM. Tissue-type plasminogen activator-primed human iPSC-derived neural progenitor cells promote motor recovery after severe spinal cord injury. Sci Rep 2019; 9:19291. [PMID: 31848365 PMCID: PMC6917728 DOI: 10.1038/s41598-019-55132-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 11/18/2019] [Indexed: 01/06/2023] Open
Abstract
The goal of stem cell therapy for spinal cord injury (SCI) is to restore motor function without exacerbating pain. Induced pluripotent stem cells (iPSC) may be administered by autologous transplantation, avoiding immunologic challenges. Identifying strategies to optimize iPSC-derived neural progenitor cells (hiNPC) for cell transplantation is an important objective. Herein, we report a method that takes advantage of the growth factor-like and anti-inflammatory activities of the fibrinolysis protease, tissue plasminogen activator tPA, without effects on hemostasis. We demonstrate that conditioning hiNPC with enzymatically-inactive tissue-type plasminogen activator (EI-tPA), prior to grafting into a T3 lesion site in a clinically relevant severe SCI model, significantly improves motor outcomes. EI-tPA-primed hiNPC grafted into lesion sites survived, differentiated, acquired markers of motor neuron maturation, and extended βIII-tubulin-positive axons several spinal segments below the lesion. Importantly, only SCI rats that received EI-tPA primed hiNPC demonstrated significantly improved motor function, without exacerbating pain. When hiNPC were treated with EI-tPA in culture, NMDA-R-dependent cell signaling was initiated, expression of genes associated with stemness (Nestin, Sox2) was regulated, and thrombin-induced cell death was prevented. EI-tPA emerges as a novel agent capable of improving the efficacy of stem cell therapy in SCI.
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Affiliation(s)
- Yasuhiro Shiga
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, 92093, USA.,Department of Orthopaedic Surgery and Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Akina Shiga
- Department of Orthopaedic Surgery and Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Pinar Mesci
- Departments of Pediatrics and Cellular and Molecular Medicine, and the Stem Cell Program, University of California, San Diego, CA, 92037-0695, USA
| | - HyoJun Kwon
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, 92093, USA
| | - Coralie Brifault
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, 92093, USA.,Department of Pathology, University of California San Diego, La Jolla, CA, 92093, USA
| | - John H Kim
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, 92093, USA.,Department of Chemistry, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jacob J Jeziorski
- Departments of Pediatrics and Cellular and Molecular Medicine, and the Stem Cell Program, University of California, San Diego, CA, 92037-0695, USA
| | - Chanond Nasamran
- Center for Computational Biology & Bioinformatics (CCBB), University of California, San Diego, La Jolla, CA, 92093, USA
| | - Seiji Ohtori
- Department of Orthopaedic Surgery and Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Alysson R Muotri
- Departments of Pediatrics and Cellular and Molecular Medicine, and the Stem Cell Program, University of California, San Diego, CA, 92037-0695, USA
| | - Steven L Gonias
- Department of Pathology, University of California San Diego, La Jolla, CA, 92093, USA
| | - Wendy M Campana
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, 92093, USA. .,Veterans Administration San Diego HealthCare System, San Diego, CA, 92161, USA.
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7
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Muscella A, Vetrugno C, Cossa LG, Marsigliante S. TGF-β1 activates RSC96 Schwann cells migration and invasion through MMP-2 and MMP-9 activities. J Neurochem 2019; 153:525-538. [PMID: 31729763 DOI: 10.1111/jnc.14913] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/31/2019] [Accepted: 11/06/2019] [Indexed: 12/18/2022]
Abstract
Following peripheral nerve injury, remnant Schwann cells adopt a migratory phenotype and remodel the extracellular matrix allowing axonal regrowth. Although much evidence has demonstrated that TGF-β1 promotes glioma cell motility and induces the expression of extracellular matrix proteins, the effects of TGF-β1 on Schwann cell migration has not yet been studied. We therefore investigated the cellular effects and the signal transduction pathways evoked by TGF-β1 in rattus norvegicus neuronal Schwann RSC96 cell. TGF-β1 significantly increased migration and invasion of Schwann cells assessed by the wound-healing assay and by cell invasion assay. TGF-β1-enhanced migration/invasion was blocked by inhibition of MMP-2 and MMP-9. Consistently, by real-time and western blot analyses, we demonstrated that TGF-β1 increased MMP-2 and MMP-9 mRNA and protein levels. TGF-β1 also increased MMPs activities in cell growth medium, as shown by gelatin zymography. The selective TGF-β Type I receptor inhibitor SB431542 completely abrogated any effects by TGF-β1. Indeed, TGF-β1 Type I receptor activation provoked the cytosol-to-nucleus translocation of SMAD2 and SMAD3. SMAD2 knockdown by siRNA blocked MMP-2 induction and cell migration/invasion due to TGF-β1. TGF-β1 also provoked phosphorylation of MAPKs extracellular regulated kinase 1/2 and JNK1/2. Both MAPKs were upstream to p65/NF-kB inasmuch as both MAPKs' inhibitors PD98059 and SP600125 or their down-regulation by siRNA significantly blocked the TGF-β1-induced nuclear translocation of p65/NF-kB. In addition, p65/NF-κB siRNA knockdown inhibited the effects of TGF-β1 on both MMP-9 and cell migration/invasion. We conclude that TGF-β1 controls RSC96 Schwann cell migration and invasion through MMP-2 and MMP-9 activities. MMP-2 is controlled by SMAD2 whilst MMP-9 is controlled via an ERK1/2-JNK1/2-NF-κB dependent pathway.
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Affiliation(s)
- Antonella Muscella
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.), Università del Salento, Lecce, Italy
| | - Carla Vetrugno
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.), Università del Salento, Lecce, Italy
| | - Luca Giulio Cossa
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.), Università del Salento, Lecce, Italy
| | - Santo Marsigliante
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (Di.S.Te.B.A.), Università del Salento, Lecce, Italy
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8
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Lotfi L, Khakbiz M, Moosazadeh Moghaddam M, Bonakdar S. A biomaterials approach to Schwann cell development in neural tissue engineering. J Biomed Mater Res A 2019; 107:2425-2446. [DOI: 10.1002/jbm.a.36749] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/08/2019] [Accepted: 05/07/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Leila Lotfi
- Department of Life Science Engineering, Faculty of New Sciences and TechnologiesUniversity of Tehran Tehran Iran
| | - Mehrdad Khakbiz
- Department of Life Science Engineering, Faculty of New Sciences and TechnologiesUniversity of Tehran Tehran Iran
| | | | - Shahin Bonakdar
- National Cell Bank DepartmentPasteur Institute of Iran Tehran Iran
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9
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Huang CT, Chen SH, Lin SC, Chen WT, Lue JH, Tsai YJ. Erythropoietin reduces nerve demyelination, neuropathic pain behavior and microglial MAPKs activation through erythropoietin receptors on Schwann cells in a rat model of peripheral neuropathy. Glia 2018; 66:2299-2315. [PMID: 30417431 DOI: 10.1002/glia.23461] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 04/15/2018] [Accepted: 05/08/2018] [Indexed: 12/21/2022]
Abstract
Neuroprotective effects of erythropoietin (EPO) on peripheral nerve injury remain uncertain. This study investigated the efficacy of EPO in attenuating median nerve chronic constriction injury (CCI)-induced neuropathy. Animals received an intraneural injection of EPO at doses of 1,000, 3,000, or 5,000 units/kg 15 min before median nerve CCI. Afterwards, the behavioral and electrophysiological tests were conducted. Immunohistochemistry and immunoblotting were used for qualitative and quantitative analysis of microglial and mitogen-activated protein kinases (MAPKs), including p38, JNK, and ERK, activation. Enzyme-linked immunosorbent assay and microdialysis were applied to measure pro-inflammatory cytokine and glutamate responses, respectively. EPO pre-treatment dose-dependently ameliorated neuropathic pain behavior, decreased microglial and MAPKs activation, and diminished the release of pro-inflammatory cytokines and glutamate in the ipsilateral cuneate nucleus after CCI. Moreover, EPO pre-treatment preserved myelination of the injured median nerve on morphological investigation and suppressed injury-induced discharges. We also observed that EPO receptor (EPOR) expression was up-regulated in the injured nerve after CCI. Double immunofluorescence showed that EPOR was localized to Schwann cells. Furthermore, siRNA-mediated knockdown of EPOR expression eliminated the therapeutic effects of EPO on attenuating the microglial and MAPKs activation, pro-inflammatory cytokine responses, injury discharges, and neuropathic pain behavior in CCI rats. In conclusion, binding of EPO to its receptors on Schwann cells maintains myelin integrity and blocks ectopic discharges in the injured median nerve, that in the end contribute to attenuation of neuropathic pain via reducing glutamate release from primary afferents and inhibiting activation of microglial MAPKs and production of pro-inflammatory cytokines.
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Affiliation(s)
- Chun-Ta Huang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Seu-Hwa Chen
- Department of Anatomy, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shih-Chang Lin
- Division of Allergy and Immunology, Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan
| | - Wei-Ting Chen
- Department of Anesthesiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan.,Graduate Institute of Biomedical and Pharmaceutical Science, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - June-Horng Lue
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Ju Tsai
- Graduate Institute of Biomedical and Pharmaceutical Science, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
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10
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Poplawski G, Ishikawa T, Brifault C, Lee-Kubli C, Regestam R, Henry KW, Shiga Y, Kwon H, Ohtori S, Gonias SL, Campana WM. Schwann cells regulate sensory neuron gene expression before and after peripheral nerve injury. Glia 2018. [PMID: 29520865 DOI: 10.1002/glia.23325] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Sensory neurons in the PNS demonstrate substantial capacity for regeneration following injury. Recent studies have identified changes in the transcriptome of sensory neurons, which are instrumental for axon regeneration. The role of Schwann cells (SCs) in mediating these changes remains undefined. We tested the hypothesis that SCs regulate expression of genes in sensory neurons before and after PNS injury by comparing mice in which LDL Receptor-related Protein-1 (LRP1) is deleted in SCs (scLRP1-/- mice) with wild-type (scLRP1+/+ ) littermates. LRP1 is an endocytic and cell-signaling receptor that is necessary for normal SC function and the SC response to nerve injury. scLRP1-/- mice represent a characterized model in which the SC response to nerve injury is abnormal. Adult DRG neurons, isolated from scLRP1-/- mice, with or without a conditioning nerve lesion, demonstrated increased neurite outgrowth when cultured ex vivo, compared with neurons from wild-type mice. Following sciatic nerve crush injury, nerve regeneration was accelerated in vivo in scLRP1-/- mice. These results were explained by transcriptional activation of RAGs in DRG neurons in scLRP1-/- mice prior to nerve injury. Although the presence of abnormal SCs in scLRP1-/- mice primed DRG neurons for repair, nerve regeneration in scLRP1-/- mice resulted in abnormalities in ultrastructure, principally in Remak bundles, and with the onset of neuropathic pain. These results demonstrate the importance of SCs in controlling RAG expression by neurons and the potential for this process to cause chronic pain when abnormal. The SC may represent an important target for preventing pain following PNS injury.
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Affiliation(s)
- Gunnar Poplawski
- Department of Neurosciences, UCSD, La Jolla, California.,Program in Neuroscience, UCSD, La Jolla, California
| | - Tetsuhiro Ishikawa
- Department of Anesthesiology, UCSD, La Jolla, California.,Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | | | | | | | | | - Yasuhiro Shiga
- Department of Anesthesiology, UCSD, La Jolla, California.,Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - HyoJun Kwon
- Department of Anesthesiology, UCSD, La Jolla, California
| | - Seiji Ohtori
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | | | - Wendy M Campana
- Program in Neuroscience, UCSD, La Jolla, California.,Department of Anesthesiology, UCSD, La Jolla, California
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11
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Geary MB, Li H, Zingman A, Ketz J, Zuscik M, De Mesy Bentley KL, Noble M, Elfar JC. Erythropoietin accelerates functional recovery after moderate sciatic nerve crush injury. Muscle Nerve 2017; 56:143-151. [PMID: 28168703 DOI: 10.1002/mus.25459] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 10/29/2016] [Accepted: 11/02/2016] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Erythropoietin (EPO) has been identified as a neuroregenerative agent. We hypothesize that it may accelerate recovery after crush injury and may vary with crush severity. METHODS Mice were randomized to mild, moderate, or severe crush of the sciatic nerve and were treated with EPO or vehicle control after injury. The sciatic function index (SFI) was monitored over the first week. Microstructural changes were analyzed by immunofluorescence for neurofilament (NF) and myelin (P0 ), and electron microscopy was used to assess ultrastructural changes. RESULTS In moderate crush injuries, EPO significantly improved SFI at 7 days post-injury, an effect not observed with other severity levels. Increases in the ratio of P0 to NF were observed after EPO treatment in moderate crush injuries. Electron microscopy demonstrated endothelial cell hypertrophy in the EPO group. CONCLUSIONS EPO accelerates recovery in moderately crushed nerves, which may be through effects on myelination and vascularization. Injury severity may influence the efficacy of EPO. Muscle Nerve 56: 143-151, 2017.
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Affiliation(s)
- Michael B Geary
- Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Avenue, Box 665, Rochester, New York, 14642, USA
| | - Haiyan Li
- Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Avenue, Box 665, Rochester, New York, 14642, USA
| | - Alissa Zingman
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
| | - John Ketz
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
| | - Michael Zuscik
- Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Avenue, Box 665, Rochester, New York, 14642, USA
| | - Karen L De Mesy Bentley
- Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Avenue, Box 665, Rochester, New York, 14642, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Mark Noble
- Department of Biomedical Genetics, Stem Cell Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, New York, USA
| | - John C Elfar
- Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Avenue, Box 665, Rochester, New York, 14642, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
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12
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Localized and sustained delivery of erythropoietin from PLGA microspheres promotes functional recovery and nerve regeneration in peripheral nerve injury. BIOMED RESEARCH INTERNATIONAL 2015; 2015:478103. [PMID: 25821803 PMCID: PMC4363504 DOI: 10.1155/2015/478103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Accepted: 02/09/2015] [Indexed: 12/14/2022]
Abstract
Erythropoietin (EPO) has been demonstrated to exert neuroprotective effects on peripheral nerve injury recovery. Though daily intraperitoneal injection of EPO during a long period of time was effective, it was a tedious procedure. In addition, only limited amount of EPO could reach the injury sites by general administration, and free EPO is easily degraded in vivo. In this study, we encapsulated EPO in poly(lactide-co-glycolide) (PLGA) microspheres. Both in vitro and in vivo release assays showed that the EPO-PLGA microspheres allowed sustained release of EPO within a period of two weeks. After administration of such EPO-PLGA microspheres, the peripheral nerve injured rats had significantly better recovery compared with those which received daily intraperitoneal injection of EPO, empty PLGA microspheres, or saline treatments. This was supported by the functional, electrophysiological, and histological evaluations of the recovery done at week 8 postoperatively. We conclude that sustained delivery of EPO could be achieved by using EPO-PLGA microspheres, and such delivery method could further enhance the recovery function of EPO in nerve injury recovery.
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13
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Tzekova N, Heinen A, Küry P. Molecules involved in the crosstalk between immune- and peripheral nerve Schwann cells. J Clin Immunol 2014; 34 Suppl 1:S86-104. [PMID: 24740512 DOI: 10.1007/s10875-014-0015-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 12/13/2022]
Abstract
Schwann cells are the myelinating glial cells of the peripheral nervous system and establish myelin sheaths on large caliber axons in order to accelerate their electrical signal propagation. Apart from this well described function, these cells revealed to exhibit a high degree of differentiation plasticity as they were shown to re- and dedifferentiate upon injury and disease as well as to actively participate in regenerative- and inflammatory processes. This review focuses on the crosstalk between glial- and immune cells observed in many peripheral nerve pathologies and summarizes functional evidences of molecules, regulators and factors involved in this process. We summarize data on Schwann cell's role presenting antigens, on interactions with the complement system, on Schwann cell surface molecules/receptors and on secreted factors involved in immune cell interactions or para-/autocrine signaling events, thus strengthening the view for a broader (patho) physiological role of this cell lineage.
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Affiliation(s)
- Nevena Tzekova
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Moorenstrasse 5, D-40225, Düsseldorf, Germany
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14
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Heermann S, Schwab MH. Molecular control of Schwann cell migration along peripheral axons: keep moving! Cell Adh Migr 2012; 7:18-22. [PMID: 23076214 DOI: 10.4161/cam.22123] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The development of the peripheral nervous system (PNS) is a highly dynamic process, during which motor and sensory axons innervate distal targets, such as skeletal muscles and skin. Axonal function depends critically on support from Schwann cells, the main glial cell type in the PNS. Schwann cells originate from the neural crest, migrate along outgrowing axons and associate with axons along their entire length prior to ensheathment or myelination. How axonal growth and the migration of Schwann cells is coordinated at the level of reciprocal axon-glial signaling is the fascinating subject of ongoing research. Neuregulin-1 (NRG1) type III, an axonal membrane-bound ligand for receptor tyrosine kinases of the ErbB family, acts as a "master regulator" of peripheral myelination. In addition, NRG1-ErbB signaling directs the development of the Schwann cell lineage and regulates the proliferation and survival of Schwann cells. Studies in zebrafish have identified a direct role of NRG1 type III in Schwann cell migration, but to what extend NRG1 serves a similar function in the mammalian PNS is not clear. We have employed a mouse superior cervical ganglion explant culture system, in which the migration of endogenous Schwann cells along outgrowing axons can be visualized by time-lapse imaging. Using this approach, we found that NRG1 type III-ErbB signaling regulates the colonization of distal axonal segments by Schwann cells. However, our data suggest an indirect effect of NRG1 type III-ErbB signaling via the support of Schwann cell survival in proximal axonal regions rather than a direct effect on Schwann cell motility.
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Affiliation(s)
- Stephan Heermann
- Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany.
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15
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Chang IA, Oh MJ, Kim MH, Park SK, Kim BG, Namgung U. Vimentin phosphorylation by Cdc2 in Schwann cell controls axon growth via β1-integrin activation. FASEB J 2012; 26:2401-13. [PMID: 22371530 DOI: 10.1096/fj.11-199018] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Although preconditioning injury on the peripheral nerve induces axonal regenerative capacity in neurons, it is not known whether similar lesion effects occur in glial cells. Here we demonstrate that Schwann cells are activated by peripheral nerve preinjury and primed to mediate axon regeneration. Cdc2, which was induced from Schwann cells after sciatic nerve injury, phosphorylated vimentin almost exclusively in the distal nerve area. Phospho-vimentin-positive Schwann cells showed increased migration activity and were in close contact with process outgrowth of co-cultured neurons. Vimentin phosphorylation by Cdc2 was involved in β1-integrin activation leading to FAK phoshorylation and associated with Erk1/2 activation in Schwann cells. Neurite outgrowth of dorsal root ganglion neurons was increased by co-culture with activated Schwann cells, in which phospho-vimentin signaling was transmitted into β1-integrin activation. Then neurite outgrowth was suppressed by genetic depletion of phospho-vimentin and β1 integrin as well as inhibition of vimentin phosphorylation by Cdc2 inhibitor purvalanol A. The sciatic nerve graft harboring activated Schwann cells into the spinal cord induced Schwann cell migration beyond the graft-host barrier and facilitated regeneration of spinal axons, which was inhibited by purvalanol A pretreatment of the graft. This is the first report to our knowledge demonstrating that activation of phospho-vimentin linked to β1-integrin pathway may mediate transcellular signaling to promote axon growth.
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Affiliation(s)
- In Ae Chang
- Department of Oriental Medicine, Daejeon University, Daejeon 300-716, Republic of Korea
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Mantuano E, Jo M, Gonias SL, Campana WM. Low density lipoprotein receptor-related protein (LRP1) regulates Rac1 and RhoA reciprocally to control Schwann cell adhesion and migration. J Biol Chem 2010; 285:14259-66. [PMID: 20197276 DOI: 10.1074/jbc.m109.085126] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
LDL receptor-related protein (LRP1) is expressed by Schwann cells in vivo mainly after injury to the peripheral nervous system (PNS). Schwann cells in primary culture, which provide a model of Schwann cells in the injured PNS, also express abundant LRP1. Herein, we show that LRP1 gene-silencing or treatment with receptor-associated protein (RAP) promotes Schwann cell adhesion and inhibits cell migration on fibronectin. LRP1 gene-silencing also resulted in the formation of prominent focal adhesions and actin stress fibers. These changes, which were induced by loss of LRP1 expression or activity, were explained mechanistically by an increase in activated RhoA, coupled with a decrease in activated Rac1. Known LRP1 ligands, including matrix metalloprotease-9, tissue-type plasminogen activator, and alpha(2)-macroglobulin activated Rac1 in LRP1-expressing Schwann cells. An inhibitor of Rac1 activation promoted Schwann cell adhesion. Conversely, in cells in which LRP1 was silenced, a Rho kinase inhibitor promoted migration and inhibited adhesion. These results demonstrate that direct binding of ligands to LRP1 controls activation of small Rho family GTPases. The effects of LRP1 gene-silencing and RAP implicate autocrine pathways involving endogenously produced LRP1 ligands. Regulation of Schwann cell migration by LRP1 may be important in PNS injury.
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Affiliation(s)
- Elisabetta Mantuano
- Department of Anesthesiology, University of California, San Diego, La Jolla, California 92093, USA
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