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Zhang K, Li R, Xu G, Han H, Qin L. Effect of GM6001 on the expression of syndecan-1 in rats with acute kidney injury and its protective effect on the kidneys. Exp Ther Med 2020; 20:2049-2054. [PMID: 32782516 PMCID: PMC7401296 DOI: 10.3892/etm.2020.8892] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/03/2019] [Indexed: 11/15/2022] Open
Abstract
Expression of syndecan-1 (SDC-1) in rats with acute kidney injury and the protective effect of GM6001 on the kidney were investigated. Fifty SD rats were selected and randomly divided into control group (CG) (n=15), treatment control group (TCG) (n=10), module group (MG) (n=15) and treatment group (TG) (n=10). In TG, the model of acute renal injury (AKI) in rats was established after pretreatment of intraperitoneal injection of GM6001 one day before modeling. In MG, the same amount of saline was injected intraperitoneally one day before modeling and the same treatment was done on the day of modeling. In CG, the same amount of saline was injected intraperitoneally one day before modeling but the model was not made. In TCG, rats were pretreated with intraperitoneal injection of GM6001 one day before modeling but the model was not made. The contents of blood urea nitrogen (BUN) in serum, serum creatinine (SCR), uric acid (UA) and blood β2-microglobulin (β2-MG) were detected by ELISA. The content of SDC-1 in renal tissues was detected by qRT-PCR and western blotting. Expression of SDC-1 in renal tissue of 24 rats after modeling was lower than that of MG (P<0.050). SDC-1 expression was the highest in TG (P<0.05). Compared with before modeling, the contents of BUN, SCR, UA and β2-MG in MG and TG increased (P<0.05). After modeling, the contents of serum BUN, SCR, UA and β2-MG in TG were significantly lower than those in MG (P<0.05). The levels of SDC-1 in renal tissue of rats with acute kidney injury increased. After GM6001 treatment, SDC-1 levels can be improved and has a certain protective effect on the kidneys.
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Affiliation(s)
- Kunying Zhang
- Department of Nephrology, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Rongxin Li
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
| | - Guodong Xu
- Department of Pathology, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Huirong Han
- Department of Anesthesiology, Weifang Medical University, Weifang, Shandong 261042, P.R. China
| | - Lili Qin
- Department of Nephrology, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
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Dolmatov IY, Shulga AP, Ginanova TT, Eliseikina MG, Lamash NE. Metalloproteinase inhibitor GM6001 delays regeneration in holothurians. Tissue Cell 2019; 59:1-9. [PMID: 31383283 DOI: 10.1016/j.tice.2019.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 01/31/2023]
Abstract
The effect of the GM6001 metalloproteinase inhibitor on the regeneration of ambulacral structures in Eupentacta fraudatrix has been investigated. Inhibition of proteinase activity exerts a marked effect on regeneration, being dependent on the time when GM6001 is injected. When administration of the inhibitor begins on day 3 post-injury, regeneration is completely abolished, and the animals die. This means that early activation of proteinases is crucial for triggering the regenerative process in holothurians. When GM6001 in first injected on day 7 post-injury, the regeneration rate decreases. However, this effect has proven to be reversible: when inhibition ceases, the regeneration resumes. The effect of the inhibitor is manifested as a retarded degradation of the extracellular matrix, the lack of cell dedifferentiation, and, probably, a slower cell migration. The gelatinase activity is detected in all the regenerating organs of E. fraudatrix. In the holothurian Cucumaria japonica, which is not capable of healing skin wounds and ambulacrum reparation, no gelatinase activity was observed at the site of damage. A suggestion is made that proteinases play an important role in regeneration in holothurians. The most probable morphogenesis regulators are matrix metalloproteinases with gelatinase activity.
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Affiliation(s)
- I Yu Dolmatov
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia; Far Eastern Federal University, Vladivostok, 690950, Russia.
| | - A P Shulga
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - T T Ginanova
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - M G Eliseikina
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - N E Lamash
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia; Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, 152742, Nekouzskii raion, Yaroslavl oblast, Russia
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Chiu CW, Huang WH, Kuo HS, Tsai MJ, Chen CJ, Lee MJ, Cheng H. Local inhibition of matrix metalloproteinases reduced M2 macrophage activity and impeded recovery in spinal cord transected rats after treatment with fibroblast growth factor-1 and nerve grafts. Neural Regen Res 2018; 13:1447-1454. [PMID: 30106058 PMCID: PMC6108206 DOI: 10.4103/1673-5374.235302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Alternatively activated macrophages (M2 macrophages) promote central nervous system regeneration. Our previous study demonstrated that treatment with peripheral nerve grafts and fibroblast growth factor-1 recruited more M2 macrophages and improved partial functional recovery in spinal cord transected rats. The migration of macrophages is matrix metalloproteinase (MMP) dependent. We used a general inhibitor of MMPs to influence macrophage migration, and we examined the migration of macrophage populations and changes in spinal function. Rat spinal cords were completely transected at T8, and 5 mm of spinal cord was removed (group T). In group R, spinal cord-transected rats received treatment with fibroblast growth factor-1 and peripheral nerve grafts. In group RG, rats received the same treatment as group R with the addition of 200 μM GM6001 (an MMP inhibitor) to the fibrin mix. We found that MMP-9, but not MMP-2, was upregulated in the graft area of rats in group R. Local application of the MMP inhibitor resulted in a reduction in the ratio of arginase-1 (M2 macrophage subset)/inducible nitric oxide synthase-postive cells. When the MMP inhibitor was applied at 8 weeks postoperation, the partial functional recovery observed in group R was lost. This effect was accompanied by a decrease in brain-derived neurotrophic factor levels in the nerve graft. These results suggested that the arginase-1 positive population in spinal cord transected rats is a migratory cell population rather than the phenotypic conversion of early iNOS+ cells and that the migration of the arginase-1+ population could be regulated locally. Simultaneous application of MMP inhibitors or promotion of MMP activity for spinal cord injury needs to be considered if the coadministered treatment involves M2 recruitment.
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Affiliation(s)
- Chuan-Wen Chiu
- Department and Institute of Pharmacology, National Yang-Ming University; Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, China
| | - Wen-Hung Huang
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, China
| | - Huai-Sheng Kuo
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, China
| | - May-Jywan Tsai
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, China
| | - Ching-Jung Chen
- Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, China
| | - Meng-Jen Lee
- Department of Applied Chemistry, Chaoyang University of Technology, Taichung, Taiwan, China
| | - Henrich Cheng
- Department and Institute of Pharmacology, National Yang-Ming University; Neural Regeneration Laboratory, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital; Center for Neural Regeneration, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, China
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Sterzik A, Paprottka PM, Zengel P, Hirner H, Roßpunt S, Eschbach R, Moser M, Havla L, Ingrisch M, Mack B, Reiser MF, Nikolaou K, Cyran CC. DCE-MRI biomarkers for monitoring an anti-angiogenic triple combination therapy in experimental hypopharynx carcinoma xenografts with immunohistochemical validation. Acta Radiol 2015; 56:294-303. [PMID: 24609871 DOI: 10.1177/0284185114527444] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Novel anti-angiogenic treatments are increasingly complementing established cancer therapy strategies in head and neck tumors. Contrast-enhanced magnetic resonance imaging (MRI) can be applied for early and non-invasive therapy monitoring by non-invasive quantitative assessment of tumor microcirculation as in vivo imaging biomarkers of therapy response. PURPOSE To monitor the anti-angiogenic effects of a novel combination therapy on experimental head and neck squamous cell carcinomas (HNSCC) with dynamic contrast-enhanced (DCE)-MRI. MATERIAL AND METHODS Athymic rats (n = 18) with subcutaneous HNSCC xenografts were investigated by DCE-MRI before and after 7 days of a daily triple therapy regimen combining the COX-II-inhibitor celecoxib, the matrix-metalloproteinase-inhibitor GM6001, and the uPA-inhibitor upamostat. Quantitative measurements of tumor blood flow (tBF), tumor blood volume (tBV), and permeability-surface area product (PS) were calculated and validated by immunohistochemistry. RESULTS Mean tBF and tBV in triple-therapy animals decreased significantly from day 0 to day 7 (tBF, 41.0 ± 14.2 to 20.4 ± 5.7 mL/100 mL/min; P < 0.01; tBV, 17.7 ± 3.9 to 7.5 ± 3.3%; P < 0.01). No significant effects on PS were observed in either group (P > 0.05). Immunohistochemical analysis showed a significantly lower tumor vascularity in the therapy group than in the control group (CD31), significantly fewer Ki-67+ proliferating tumor cells and significantly more Capase-3+ apoptotic tumor cells (P < 0.05). Significant (P < 0.05) correlations were observed between tBF/tBV and CD31 (tBF, r = 0.84; tBV, r = 0.70), tBV and Ki-67 (r = 0.62), as well as tBF and caspase-3 (r = -0.64). CONCLUSION DCE-MRI may be a suitable tool for the non-invasive monitoring of the anti-vascular effects of this innovative triple therapy regimen with potential for clinical translation.
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Affiliation(s)
- Alexander Sterzik
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Philipp M Paprottka
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Pamela Zengel
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Heidrun Hirner
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Svenja Roßpunt
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Ralf Eschbach
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Matthias Moser
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Lukas Havla
- Josef Lissner Laboratory for Biomedical Imaging, Department of Clinical Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Michael Ingrisch
- Josef Lissner Laboratory for Biomedical Imaging, Department of Clinical Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Brigitte Mack
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Maximilian F Reiser
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Konstantin Nikolaou
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Clemens C Cyran
- Department of Clinical Radiology, Laboratory of Experimental Radiology, University of Munich Hospitals, Ludwig-Maximilians-University Munich, Munich, Germany
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Xin H, Liang W, Mang J, Lin L, Guo N, Zhang F, Xu Z. Relationship of gelatinases-tight junction proteins and blood-brain barrier permeability in the early stage of cerebral ischemia and reperfusion. Neural Regen Res 2014; 7:2405-12. [PMID: 25337090 PMCID: PMC4200714 DOI: 10.3969/j.issn.1673-5374.2012.31.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 10/13/2012] [Indexed: 01/13/2023] Open
Abstract
Gelatinases matrix metalloproteinase-2 and matrix metalloproteinase-9 have been shown to mediate claudin-5 and occludin degradation, and play an important regulatory role in blood-brain barrier permeability. This study established a rat model of 1.5-hour middle cerebral artery occlusion with reperfusion. Protein expression levels of claudin-5 and occludin gradually decreased in the early stage of reperfusion, which corresponded to the increase of the gelatinolytic activity of matrix metalloproteinase-2 and matrix metalloproteinase-9. In addition, rats that received treatment with matrix metalloproteinase inhibitor N-[(2R)-2-(hydroxamidocarbonylmethyl)-4-methylpenthanoyl]-L-tryptophan methylamide (GM6001) showed a significant reduction in Evans blue leakage and an inhibition of claudin-5 and occludin protein degradation in striatal tissue. These data indicate that matrix metalloproteinase-2 and matrix metalloproteinase-9-mediated claudin-5 and occludin degradation is an important reason for blood-brain barrier leakage in the early stage of reperfusion. The leakage of the blood-brain barrier was present due to gelatinases-mediated degradation of claudin-5 and occludin proteins. We hypothesized that the timely closure of the structural component of the blood-brain barrier (tight junction proteins) is of importance.
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Affiliation(s)
- Haolin Xin
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Wenzhao Liang
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Jing Mang
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Lina Lin
- Department of Neurosurgery, First Hospital, Jilin University, Changchun 130021, Jilin Province, China
| | - Na Guo
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
| | - Feng Zhang
- College of Life Science, Jilin University, Changchun 130012, Jilin Province, China
| | - Zhongxin Xu
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin Province, China
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Matsunaga N, Chikaraishi Y, Shimazawa M, Yokota S, Hara H. Vaccinium myrtillus (Bilberry) Extracts Reduce Angiogenesis In Vitro and In Vivo. Evid Based Complement Alternat Med 2007; 7:47-56. [PMID: 18955266 PMCID: PMC2816375 DOI: 10.1093/ecam/nem151] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Accepted: 09/12/2007] [Indexed: 12/16/2022]
Abstract
Vaccinium myrtillus (Bilberry) extracts (VME) were tested for effects on angiogenesis in vitro and in vivo. VME (0.3–30 µg ml−1) and GM6001 (0.1–100 µM; a matrix metalloproteinase inhibitor) concentration-dependently inhibited both tube formation and migration of human umbilical vein endothelial cells (HUVECs) induced by vascular endothelial growth factor-A (VEGF-A). In addition, VME inhibited VEGF-A-induced proliferation of HUVECs. VME inhibited VEGF-A-induced phosphorylations of extracellular signal-regulated kinase 1/2 (ERK 1/2) and serine/threonine protein kinase family protein kinase B (Akt), but not that of phospholipase Cγ (PLCγ). In an in vivo assay, intravitreal administration of VME inhibited the formation of neovascular tufts during oxygen-induced retinopathy in mice. Thus, VME inhibited angiogenesis both in vitro and in vivo, presumably by inhibiting the phosphorylations of ERK 1/2 and Akt. These findings indicate that VME may be effective against retinal diseases involving angiogenesis, providing it can reach the retina after its administration. Further investigations will be needed to clarify the major angiogenesis-modulating constituent(s) of VME.
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Affiliation(s)
- Nozomu Matsunaga
- Department of Biofunctional Evaluation, Molecular Pharmacology, Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, Gifu 502-8585 and Wakasa Seikatsu Co. Ltd, 22 Naginataboko-cho, Shijo-Karasuma, Shimogyo-ku, Kyoto 600-8008, Japan
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