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Li JS, Zheng PF, Rong JJ, Zheng ZF, Liu ZY, Wang CL. Platelet-derived growth factor subunit-B mediating the effect of dickkopf-1 on acute myocardial infarction risk: a two-step Mendelian randomization study. Aging (Albany NY) 2024; 16:701-713. [PMID: 38175715 PMCID: PMC10817415 DOI: 10.18632/aging.205413] [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: 08/07/2023] [Accepted: 11/06/2023] [Indexed: 01/05/2024]
Abstract
Previous studies have indicated a potential connection between plasma levels of Dickkopf-1 (DKK1) and platelet-derived growth factor subunit-B (PDGF-B) with the development of atherosclerosis. However, the causal relationship between DKK1, PDGF-B, and the risk of acute myocardial infarction (AMI) is yet to be established. To address this research gap, we conducted Mendelian randomization (MR) and mediation analyses to investigate the potential mediating role of PDGF-B in the association between DKK1 and AMI risk. Summary statistics for DKK1 (n = 3,301) and PDGF-B (n = 21,758) were obtained from the GWAS meta-analyses conducted by Sun et al. and Folkersen et al., respectively. Data on AMI cases (n = 3,927) and controls (n = 333,272) were retrieved from the UK Biobank study. Our findings revealed that genetic predisposition to DKK1 (odds ratio [OR]: 1.00208; 95% confidence interval [CI]: 1.00056-1.00361; P = 0.0072) and PDGF-B (OR: 1.00358; 95% CI: 1.00136-1.00581; P = 0.0015) was associated with an increased risk of AMI. Additionally, genetic predisposition to DKK1 (OR: 1.38389; 95% CI: 1.07066-1.78875; P = 0.0131) was linked to higher PDGF-B levels. Furthermore, our MR mediation analysis revealed that PDGF-B partially mediated the association between DKK1 and AMI risk, with 55.8% of the effect of genetically predicted DKK1 being mediated through genetically predicted PDGF-B. These findings suggest that genetic predisposition to DKK1 is positively correlated with the risk of AMI, and that PDGF-B partially mediates this association. Therefore, DKK1 and PDGF-B may serve as promising targets for the prevention and treatment of AMI.
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Affiliation(s)
- Jun-Shan Li
- Cardiology Department, Hunan Provincial People’s Hospital Xingsha Branch (People’s Hospital of Changsha County), Changsha 410000, Hunan, China
- Cardiology Department, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
| | - Peng-Fei Zheng
- Cardiology Department, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
| | - Jing-Jing Rong
- Cardiology Department, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
| | - Zhao-Fen Zheng
- Cardiology Department, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
| | - Zheng-Yu Liu
- Cardiology Department, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
| | - Chang-Lu Wang
- Cardiology Department, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Changsha 410000, Hunan, China
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2
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Puig S, Gutstein HB. Chronic Morphine Modulates PDGFR-β and PDGF-B Expression and Distribution in Dorsal Root Ganglia and Spinal Cord in Male Rats. Neuroscience 2023; 519:147-161. [PMID: 36997020 DOI: 10.1016/j.neuroscience.2023.03.025] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 03/16/2023] [Accepted: 03/22/2023] [Indexed: 03/31/2023]
Abstract
The analgesic effect of opioids decreases over time due to the development of analgesic tolerance. We have shown that inhibition of the platelet-derived growth factor beta (PDGFR-β) signaling eliminates morphine analgesic tolerance in rats. Although the PDGFR-β and its ligand, the platelet-derived growth factor type B (PDGF-B), are expressed in the substantia gelatinosa of the spinal cord (SG) and in the dorsal root ganglia (DRG), their precise distribution within different cell types of these structures is unknown. Additionally, the impact of a tolerance-mediating chronic morphine treatment, on the expression and distribution of PDGF-B and PDGFR-β has not yet been studied. Using immunohistochemistry (IHC), we found that in the spinal cord, PDGFR-β and PDGF-B were expressed in neurons and oligodendrocytes and co-localized with the mu-opioid receptor (MOPr) in opioid naïve rats. PDGF-B was also found in microglia and astrocytes. Both PDGFR-β and PDGF-B were detected in DRG neurons but not in spinal primary afferent terminals. Chronic morphine exposure did not change the cellular distribution of PDGFR-β or PDGF-B. However, PDGFR-β expression was downregulated in the SG and upregulated in the DRG. Consistent with our previous finding that morphine caused tolerance by inducing PDGF-B release, PDGF-B was upregulated in the spinal cord. We also found that chronic morphine exposure caused a spinal proliferation of oligodendrocytes. The changes in PDGFR-β and PDGF-B expression induced by chronic morphine treatment suggest potential mechanistic substrates underlying opioid tolerance.
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Affiliation(s)
- Stephanie Puig
- Department of Pharmacology and Physiology, Boston University School of Medicine, Boston, 02118 MA, USA
| | - Howard B Gutstein
- Department of Anesthesiology, University of Connecticut Health Science Center, Farmington, 06030 CT, USA.
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Hosaka K, Wang C, Zhang S, Lv X, Seki T, Zhang Y, Jing X, Wu J, Du Q, He X, Fan Y, Li X, Kondo M, Yoshihara M, Qian H, Shi L, Zhu P, Xu Y, Yang Y, Cheng T, Cao Y. Perivascular localized cells commit erythropoiesis in PDGF-B-expressing solid tumors. Cancer Commun (Lond) 2023. [PMID: 37120719 DOI: 10.1002/cac2.12423] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 02/05/2023] [Accepted: 04/06/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND Tumors possess incessant growth features, and expansion of their masses demands sufficient oxygen supply by red blood cells (RBCs). In adult mammals, the bone marrow (BM) is the main organ regulating hematopoiesis with dedicated manners. Other than BM, extramedullary hematopoiesis is discovered in various pathophysiological settings. However, whether tumors can contribute to hematopoiesis is completely unknown. Accumulating evidence shows that, in the tumor microenvironment (TME), perivascular localized cells retain progenitor cell properties and can differentiate into other cells. Here, we sought to better understand whether and how perivascular localized pericytes in tumors manipulate hematopoiesis. METHODS To test if vascular cells can differentiate into RBCs, genome-wide expression profiling was performed using mouse-derived pericytes. Genetic tracing of perivascular localized cells employing NG2-CreERT2:R26R-tdTomato mouse strain was used to validate the findings in vivo. Fluorescence-activated cell sorting (FACS), single-cell sequencing, and colony formation assays were applied for biological studies. The production of erythroid differentiation-specific cytokine, erythropoietin (EPO), in TME was checked using quantitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA, magnetic-activated cell sorting and immunohistochemistry. To investigate BM function in tumor erythropoiesis, BM transplantation mouse models were employed. RESULTS Genome-wide expression profiling showed that in response to platelet-derived growth factor subunit B (PDGF-B), neural/glial antigen 2 (NG2)+ perivascular localized cells exhibited hematopoietic stem and progenitor-like features and underwent differentiation towards the erythroid lineage. PDGF-B simultaneously targeted cancer-associated fibroblasts to produce high levels of EPO, a crucial hormone that necessitates erythropoiesis. FACS analysis using genetic tracing of NG2+ cells in tumors defined the perivascular localized cell-derived subpopulation of hematopoietic cells. Single-cell sequencing and colony formation assays validated the fact that, upon PDGF-B stimulation, NG2+ cells isolated from tumors acted as erythroblast progenitor cells, which were distinctive from the canonical BM hematopoietic stem cells. CONCLUSIONS Our data provide a new concept of hematopoiesis within tumor tissues and novel mechanistic insights into perivascular localized cell-derived erythroid cells within TME. Targeting tumor hematopoiesis is a novel therapeutic concept for treating various cancers that may have profound impacts on cancer therapy.
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Affiliation(s)
- Kayoko Hosaka
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Chenchen Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Shiyue Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Xue Lv
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Takahiro Seki
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Yin Zhang
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
- School of Pharmacology, Binzhou Medical University, Yantai, Shandong, P.R. China
| | - Xu Jing
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
- Department of Clinical Laboratory, the Second Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Jieyu Wu
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Qiqiao Du
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Xingkang He
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University Medical School, Hangzhou, Zhejiang, P.R. China
| | - Yulong Fan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Xuan Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Makoto Kondo
- Center for Hematology and Regenerative Medicine, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Masahito Yoshihara
- Department of Biosciences and Nutrition, Karolinska Institute, Huddinge, Sweden
| | - Hong Qian
- Center for Hematology and Regenerative Medicine, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Lihong Shi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Ping Zhu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Yuanfu Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Yunlong Yang
- Department of Cellular and Genetic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, P. R. China
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, P. R. China
- Tianjin Institutes of Health Science, Tianjin, P. R. China
| | - Yihai Cao
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
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Hamaguchi H, Dohi K, Sakai T, Taoka M, Isobe T, Matsui TS, Deguchi S, Furuichi Y, Fujii NL, Manabe Y. PDGF-B secreted from skeletal muscle enhances myoblast proliferation and myotube maturation via activation of the PDGFR signaling cascade. Biochem Biophys Res Commun 2023; 639:169-175. [PMID: 36521377 DOI: 10.1016/j.bbrc.2022.11.085] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022]
Abstract
Myokines, secreted factors from skeletal muscle, act locally on muscle cells or satellite cells, which is important in regulating muscle mass and function. Here, we found platelet-derived growth factor subunit B (PDGF-B) is constitutively secreted from muscle cells without muscle contraction. Furthermore, PDGF-B secretion increased with myoblast to myotube differentiation. To examine the role of PDGF-B as a paracrine or autocrine myokine, myoblasts or myotubes were treated with PDGF-B. As a result, myoblast proliferation was significantly enhanced via several signaling pathways. Intriguingly, myotubes treated with PDGF-B showed enhanced maturation as indicated by their increased myotube diameter, myosin heavy chain expression, and strengthened contractile force. These findings suggest that PDGF-B is constitutively secreted by myokines to enhance myoblast proliferation and myotube maturation, which may contribute to skeletal muscle regeneration.
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Affiliation(s)
- Hiroki Hamaguchi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Kitora Dohi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Takaomi Sakai
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Masato Taoka
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, 192-0397, Japan
| | - Toshiaki Isobe
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, 192-0397, Japan
| | - Tsubasa S Matsui
- Division of Bioengineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Shinji Deguchi
- Division of Bioengineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Yasuro Furuichi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Nobuharu L Fujii
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan
| | - Yasuko Manabe
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan.
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5
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Nagarajan PP, Tora MS, Neill SG, Federici T, Texakalidis P, Donsante A, Canoll P, Lei K, Boulis NM. Lentiviral-Induced Spinal Cord Gliomas in Rat Model. Int J Mol Sci 2021; 22:12943. [PMID: 34884748 PMCID: PMC8657985 DOI: 10.3390/ijms222312943] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022] Open
Abstract
Intramedullary spinal cord tumors are a rare and understudied cancer with poor treatment options and prognosis. Our prior study used a combination of PDGF-B, HRAS, and p53 knockdown to induce the development of high-grade glioma in the spinal cords of minipigs. In this study, we evaluate the ability of each vector alone and combinations of vectors to produce high-grade spinal cord gliomas. Eight groups of rats (n = 8/group) underwent thoracolumbar laminectomy and injection of lentiviral vector in the lateral white matter of the spinal cord. Each group received a different combination of lentiviral vectors expressing PDGF-B, a constitutively active HRAS mutant, or shRNA targeting p53, or a control vector. All animals were monitored once per week for clinical deficits for 98 days. Tissues were harvested and analyzed using hematoxylin and eosin (H&E) and immunohistochemical (IHC) staining. Rats injected with PDGF-B+HRAS+sh-p53 (triple cocktail) exhibited statistically significant declines in all behavioral measures (Basso Beattie Bresnahan scoring, Tarlov scoring, weight, and survival rate) over time when compared to the control. Histologically, all groups except the control and those injected with sh-p53 displayed the development of tumors at the injection site, although there were differences in the rate of tumor growth and the histopathological features of the lesions between groups. Examination of immunohistochemistry revealed rats receiving triple cocktail displayed the largest and most significant increase in the Ki67 proliferation index and GFAP positivity than any other group. PDGF-B+HRAS also displayed a significant increase in the Ki67 proliferation index. Rats receiving PDGF-B alone and PDGF-B+ sh-p53 displayed more a significant increase in SOX2-positive staining than in any other group. We found that different vector combinations produced differing high-grade glioma models in rodents. The combination of all three vectors produced a model of high-grade glioma more efficiently and aggressively with respect to behavioral, physiological, and histological characteristics than the rest of the vector combinations. Thus, the present rat model of spinal cord glioma may potentially be used to evaluate therapeutic strategies in the future.
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Affiliation(s)
- Purva P. Nagarajan
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
| | - Muhibullah S. Tora
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Stewart G. Neill
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA;
| | - Thais Federici
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
| | - Pavlos Texakalidis
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
| | - Anthony Donsante
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
| | - Peter Canoll
- Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA;
| | - Kecheng Lei
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
| | - Nicholas M. Boulis
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA; (P.P.N.); (M.S.T.); (T.F.); (P.T.); (A.D.)
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Tillie RJHA, Theelen TL, van Kuijk K, Temmerman L, de Bruijn J, Gijbels M, Betsholtz C, Biessen EAL, Sluimer JC. A Switch from Cell-Associated to Soluble PDGF-B Protects against Atherosclerosis, despite Driving Extramedullary Hematopoiesis. Cells 2021; 10:1746. [PMID: 34359916 PMCID: PMC8308020 DOI: 10.3390/cells10071746] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 12/30/2022] Open
Abstract
Platelet-derived growth factor B (PDGF-B) is a mitogenic, migratory and survival factor. Cell-associated PDGF-B recruits stabilizing pericytes towards blood vessels through retention in extracellular matrix. We hypothesized that the genetic ablation of cell-associated PDGF-B by retention motif deletion would reduce the local availability of PDGF-B, resulting in microvascular pericyte loss, microvascular permeability and exacerbated atherosclerosis. Therefore, Ldlr-/-Pdgfbret/ret mice were fed a high cholesterol diet. Although plaque size was increased in the aortic root of Pdgfbret/ret mice, microvessel density and intraplaque hemorrhage were unexpectedly unaffected. Plaque macrophage content was reduced, which is likely attributable to increased apoptosis, as judged by increased TUNEL+ cells in Pdgfbret/ret plaques (2.1-fold) and increased Pdgfbret/ret macrophage apoptosis upon 7-ketocholesterol or oxidized LDL incubation in vitro. Moreover, Pdgfbret/ret plaque collagen content increased independent of mesenchymal cell density. The decreased macrophage matrix metalloproteinase activity could partly explain Pdgfbret/ret collagen content. In addition to the beneficial vascular effects, we observed reduced body weight gain related to smaller fat deposition in Pdgfbret/ret liver and adipose tissue. While dampening plaque inflammation, Pdgfbret/ret paradoxically induced systemic leukocytosis. The increased incorporation of 5-ethynyl-2'-deoxyuridine indicated increased extramedullary hematopoiesis and the increased proliferation of circulating leukocytes. We concluded that Pdgfbret/ret confers vascular and metabolic effects, which appeared to be protective against diet-induced cardiovascular burden. These effects were unrelated to arterial mesenchymal cell content or adventitial microvessel density and leakage. In contrast, the deletion drives splenic hematopoiesis and subsequent leukocytosis in hypercholesterolemia.
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Affiliation(s)
- Renée J. H. A. Tillie
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
| | - Thomas L. Theelen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
| | - Kim van Kuijk
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
| | - Lieve Temmerman
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
| | - Jenny de Bruijn
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
| | - Marion Gijbels
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Christer Betsholtz
- Rudbeck Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University, 751 85 Uppsala, Sweden;
| | - Erik A. L. Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany
| | - Judith C. Sluimer
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands; (R.J.H.A.T.); (T.L.T.); (K.v.K.); (L.T.); (J.d.B.); (M.G.); (E.A.L.B.)
- BHF Centre for Cardiovascular Sciences (CVS), University of Edinburgh, Edinburgh EH16 4TJ, UK
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7
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Nishiyama M, Li HJ, Okafuji I, Fujisawa A, Ehara M, Kambe N, Furukawa F, Kanazawa N. Sustained Surface ICAM-1 Expression and Transient PDGF-B Production by Phorbol Myristate Acetate-Activated THP-1 Cells Harboring Blau Syndrome-Associated NOD2 Mutations. Children (Basel) 2021; 8:children8050335. [PMID: 33923123 PMCID: PMC8145400 DOI: 10.3390/children8050335] [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] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/21/2022]
Abstract
Objectives: Blau syndrome is a distinct class of autoinflammatory syndrome presenting with early-onset systemic granulomatosis. Blau syndrome-causing NOD2 mutations located in the central nucleotide-oligomerization domain induce ligand-independent basal NF-κB activation in an in vitro reporter assay. However, the precise role of this signaling on granuloma formation has not yet been clarified. Methods: Blau syndrome-causing NOD2 mutations were introduced into human monocytic THP-1 cells, and their morphological and molecular changes from parental cells were analyzed. Identified molecules with altered expression were examined in the patient’s lesional skin by immunostaining. Results: Although the production of proinflammatory cytokines was not altered without stimulation, mutant NOD2-expressing THP-1 cells attached persistently to the culture plate after stimulation with phorbol myristate acetate. Sustained surface ICAM-1 expression was observed in association with this phenomenon, but neither persistent ICAM-1 mRNA expression nor impaired ADAM17 mRNA expression was revealed. However, the transient induction of PDGF-B mRNA expression was specifically observed in stimulated THP-1 derivatives. In the granulomatous skin lesion of a Blau syndrome patient, ICAM-1 and PDGF-B were positively immunostained in NOD2-expressing giant cells. Conclusions: Sustained surface ICAM-1 expression and transient PDGF-B production by newly differentiating macrophages harboring mutant NOD2 might play a role in granuloma formation in Blau syndrome.
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Affiliation(s)
- Mizuho Nishiyama
- Department of Dermatology, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.N.); (H.-j.L.); (F.F.)
| | - Hong-jin Li
- Department of Dermatology, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.N.); (H.-j.L.); (F.F.)
| | - Ikuo Okafuji
- Department of Pediatrics, Kobe City Medical Center General Hospital, Kobe 650-0047, Japan;
| | - Akihiko Fujisawa
- Department of Dermatology, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (A.F.); (N.K.)
| | - Mizue Ehara
- Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Naotomo Kambe
- Department of Dermatology, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (A.F.); (N.K.)
- Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Fukumi Furukawa
- Department of Dermatology, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.N.); (H.-j.L.); (F.F.)
| | - Nobuo Kanazawa
- Department of Dermatology, School of Medicine, Wakayama Medical University, Wakayama 641-0012, Japan; (M.N.); (H.-j.L.); (F.F.)
- Department of Dermatology, School of Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan
- Correspondence:
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8
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Ma J, Tang W, Gu R, Hu F, Zhang L, Wu J, Xu G. SHP-2-Induced Activation of c-Myc Is Involved in PDGF-B-Regulated Cell Proliferation and Angiogenesis in RMECs. Front Physiol 2020; 11:555006. [PMID: 33329018 PMCID: PMC7719712 DOI: 10.3389/fphys.2020.555006] [Citation(s) in RCA: 3] [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] [Received: 04/23/2020] [Accepted: 11/03/2020] [Indexed: 12/02/2022] Open
Abstract
Background: Aberrant neovascularization resulting from inappropriate angiogenic signaling is closely related to many diseases, such as cancer, cardiovascular disease, and proliferative retinopathy. Although some factors involved in regulating pathogenic angiogenesis have been identified, the molecular mechanisms of proliferative retinopathy remain largely unknown. In the present study, we determined the role of platelet-derived growth factor-B (PDGF-B), one of the HIF-1-responsive gene products, in cell proliferation and angiogenesis in retinal microvascular endothelial cells (RMECs) and explored its regulatory mechanism. Methods: Cell counting kit-8 (CCK-8), bromodeoxyuridine (BrdU) incorporation, tube formation, cell migration, and Western blot assays were used in our study. Results: Our results showed that PDGF-B promoted cell proliferation and angiogenesis by increasing the activity of Src homology 2 domain-containing tyrosine phosphatase 2 (SHP-2) in RMECs, which was attenuated by the inhibition of PDGF receptor (PDGFR) or SHP-2 knockdown. Moreover, activation of c-Myc was involved in the processes of PDGF-B/SHP-2-driven cell proliferation in RMECs. The promoting effects of PDGF-B/SHP-2 on c-Myc expression were mediated by the Erk pathway. Conclusion: These results indicate that PDGF-B facilitates cell proliferation and angiogenesis, at least in part, via the SHP-2/Erk/c-Myc pathway in RMECs, implying new potential treatment candidates for retinal microangiopathy.
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Affiliation(s)
- Jun Ma
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China
| | - Wenyi Tang
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China
| | - Ruiping Gu
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China
| | - Fangyuan Hu
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China
| | - Lei Zhang
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jihong Wu
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China
| | - Gezhi Xu
- Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China.,Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China
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Paramasivam T, Maiti SK, Palakkara S, Rashmi, Mohan D, Manjunthaachar HV, Karthik K, Kumar N. Effect of PDGF-B Gene-Activated Acellular Matrix and Mesenchymal Stem Cell Transplantation on Full Thickness Skin Burn Wound in Rat Model. Tissue Eng Regen Med 2021; 18:235-51. [PMID: 33145744 DOI: 10.1007/s13770-020-00302-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 08/10/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Full thickness burn wounds are lack of angiogenesis, cell migration, epithelialisation and finally scar tissue formation. Tissue engineered composite graft can provide sustained release of growth factor and promote the wound healing by cell migration, early angiogenesis and proliferation of extracellular matrix and wound remodeling. The objective of this study was to evaluate the gene embedded (pDNA-platelet-derived growth factor, PDGF-B) porcine acellular urinary bladder matrix with transfected mesenchymal stem cells (rBMSC) on healing of full thickness burn wound in rat model. METHODS Full thickness burn wound of 2 × 2 cm size was created in dorsum of rat model under general anesthesia. Burn wounds were treated with silver sulfadiazine; porcine acellular urinary bladder matrix (PAUBM); PAUBM transfected with pDNA-PDGF-B; PAUBM seeded with rBMSC; PAUBM seeded with rBMSC transfected with pDNA-PDGF-B in groups A, B, C, D and E respectively. The wound healing was assessed based on clinical, macroscopically, immunologically, histopathological and RT-qPCR parameters. RESULTS Wound was significantly healed in group E and group D with early extracellular matrix deposition, enhanced granulation tissue formation and early angiogenesis compared to all other groups. The immunologic response against porcine acellular matrix showed that PDGF-B gene activated matrix along with stem cell group showed less antibody titer against acellular matrix than other groups in all intervals. PDGF gene activated matrix releasing the PDGF-B and promote the healing of full thickness burn wound with neovascularization and neo tissue formation. PDGF gene also enhances secretion of other growth factors results in PDGF mediated regenerative activities. This was confirmed in RT-qPCR at various time intervals. CONCLUSION Gene activated matrix encoded for PDGF-B protein transfected stem cells have been clinically proven for early acceleration of angiogenesis and tissue regeneration in burn wounds in rat models. Evaluation of PDGF-B gene-activated acellular matrix and mesenchymal stem cell in full thickness skin burn wound in rat.
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10
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Zhang L, Yuan C, Peng J, Zhou L, Jiang Y, Lin Y, Yin W, Xu S, Ma J, Lu J. SHP-2-Mediated Upregulation of ZEB1 Is Important for PDGF-B-Induced Cell Proliferation and Metastatic Phenotype in Triple Negative Breast Cancer. Front Oncol 2020; 10:1230. [PMID: 32850368 PMCID: PMC7423842 DOI: 10.3389/fonc.2020.01230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 06/16/2020] [Indexed: 01/25/2023] Open
Abstract
Background: Triple negative breast cancer (TNBC), a fatal malignant tumor, is characterized by a lack of estrogen and progesterone hormone receptors and overexpression of HER2. Due to its characteristics, there are no effective targeted therapies for TNBC. Therefore, it is critical to identify the crucial factors that participate in modulating TNBC progression and explore the underlying molecular mechanism. Methods: CCK-8, bromodeoxyuridine incorporation, western blotting, qPCR, and transwell assays were utilized to evaluate breast cancer cell proliferation, migration, and invasion. Results: Activation of platelet-derived growth factor (PDGF)-B/PDGF receptor (PDGFR) promoted the proliferation and metastatic phenotype of TNBC cells; however, these effects were attenuated by SHP-2 knockdown. Moreover, PDGF-B promoted the expression of zinc finger E-box binding homeobox 1 (ZEB1) by downregulating the expression of miR-200. Furthermore, knockdown of ZEB1 mitigated the promoting effects of PDGF-B on cell proliferation and migration. In addition, the regulatory effects of PDGF-B on miR-200 and ZEB1 were mediated through the SHP-2/Akt pathway. Conclusion: Our findings highlight the important roles of PDGF-B/PDGFR and their downstream signaling pathways in regulating cell proliferation and metastatic phenotype in TNBC. Hence, these molecules may serve as novel therapeutic targets for TNBC in the future.
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Affiliation(s)
- Lei Zhang
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
- Department of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany
| | - Chenwei Yuan
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Peng
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Liheng Zhou
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yiwei Jiang
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yanping Lin
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wenjin Yin
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shuguang Xu
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Ma
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jinsong Lu
- Department of Breast Surgery, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
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11
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Anfuso CD, Longo A, Distefano A, Amorini AM, Salmeri M, Zanghì G, Giallongo C, Giurdanella G, Lupo G. Uveal Melanoma Cells Elicit Retinal Pericyte Phenotypical and Biochemical Changes in an in Vitro Model of Coculture. Int J Mol Sci 2020; 21:E5557. [PMID: 32756477 DOI: 10.3390/ijms21155557] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 12/17/2022] Open
Abstract
Vascular pericytes are an important cellular component in the tumor microenvironment, however, their role in supporting cancer invasion is poorly understood. We hypothesized that PDGF-BB could be involved in the transition of human retinal pericytes (HRPC) in cancer-activated fibroblasts (CAF), induced by the 92.1 uveal melanoma (UM) cell line. In our model system, HRPC were conditioned by co-culturing with 92.1UM for 6 days (cHRPC), in the presence or absence of imatinib, to block PDGF receptor-β (PDGFRβ). The effects of the treatments were tested by wound healing assay, proliferation assay, RT-PCR, high-content screening, Western blot analysis, and invasion assay. Results showed profound changes in cHRPC shape, with increased proliferation and motility, reduction of NG2 and increase of TGF-β1, α-SMA, vimentin, and FSP-1 protein levels, modulation of PDGF isoform mRNA levels, phospho-PDGFRβ, and PDGFRβ, as well as phospho-STAT3 increases. A reduction of IL-1β and IFNγ and an increase in TNFα, IL10, and TGF-β1, CXCL11, CCL18, and VEGF mRNA in cHRPC were found. Imatinib was effective in preventing all the 92.1UM-induced changes. Moreover, cHRPC elicited a significant increase of 92.1UM cell invasion and active MMP9 protein levels. Our data suggest that retinal microvascular pericytes could promote 92.1UM growth through the acquisition of the CAF phenotype.
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12
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Alessandrini F, Ceresa D, Appolloni I, Pagani F, Poliani PL, Marubbi D, Malatesta P. Glioblastoma models driven by different mutations converge to the proneural subtype. Cancer Lett 2020; 469:447-455. [PMID: 31733287 DOI: 10.1016/j.canlet.2019.11.010] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/29/2019] [Accepted: 11/07/2019] [Indexed: 12/12/2022]
Abstract
The need of reliable syngeneic animal models for gliomas has been addressed in the last decades by reproducing genetic alterations typical of human glioblastoma in the mouse. Since different alterations underlie different molecular glioblastoma subtypes it is commonly expected that tumors induced by specific alterations represent models of the corresponding subtypes. We tested this assumption by a multilevel analysis ranging from a detailed histopathological analysis to a genome-wide expression profiling by microarray and RNA-seq on gliomas induced by two distinct molecular alterations: the overstimulation of the PDGF- and the EGF- pathways. These alterations are landmarks of proneural and classical glioblastoma subtypes respectively. However, our results consistently showed a strong similarity between the two glioma models. The expression profiles of both models converged toward a signature typical of oligodendrocyte progenitor cells, regardless the wide differentiative potential of the cell of origin. A classification based on similarity with human gliomas profiles revealed that both models belong to the proneural subtype. Our results highlight that reproducing a molecular alteration specific of a glioblastoma subtype not necessarily generates a tumor model recapitulating such subtype.
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Affiliation(s)
| | - Davide Ceresa
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Irene Appolloni
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Francesca Pagani
- Department of Molecular and Translational Medicine, Pathology Unit, University of Brescia, Brescia, Italy
| | - Pietro Luigi Poliani
- Department of Molecular and Translational Medicine, Pathology Unit, University of Brescia, Brescia, Italy
| | - Daniela Marubbi
- Ospedale Policlinico San Martino, IRCCS, Genoa, Italy; Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Paolo Malatesta
- Ospedale Policlinico San Martino, IRCCS, Genoa, Italy; Department of Experimental Medicine, University of Genoa, Genoa, Italy.
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13
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Nakase H, Ishigami K. New paradigm of B-cell biology regarding the elucidation of a new mechanism of tissue fibrosis in IgG 4-related disease. J Allergy Clin Immunol 2020; 145:785-787. [PMID: 31954774 DOI: 10.1016/j.jaci.2020.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/25/2019] [Accepted: 01/02/2020] [Indexed: 10/25/2022]
Affiliation(s)
- Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Hokkaido, Japan.
| | - Keisuke Ishigami
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Hokkaido, Japan
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Cecerska-Heryć E, Heryć R, Wiśniewska M, Michalczyk A, Dołęgowska B. Regenerative potential of platelets in patients with chronic kidney disease. Int Urol Nephrol 2019; 51:1831-1840. [PMID: 31197743 DOI: 10.1007/s11255-019-02190-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 11/20/2018] [Accepted: 06/04/2019] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Chronic kidney disease (CKD) is a systemic disease affecting many organs. Progression of renal failure aggravates ongoing inflammation and increases oxidative stress. In the final stage of CKD, it is necessary to use renal replacement therapy. A side effect of dialysis therapy is the synthesis of proinflammatory factors and increased oxidative stress, which activates platelets and immune cells. AIM OF THE STUDY To determine the regenerative potential of platelets in patients with CKD based on the analysis of the relationships between substances with potential regenerative action, as well as analysis of the influence of the type of renal replacement therapy used on regeneration of platelets. MATERIALS AND METHODS The study group consisted of 117 patients. Based on the type of therapy used, patients were divided into four groups: hemodialysis, peritoneal dialysis, kidney transplant patients, and conservative treatment (30, 30, 27, and 30 patients). The control group consisted of 30 healthy volunteers. The concentrations of IGF-1, TGF-β, and PDGF-B in the blood serum were measured by ELISA methods. RESULTS It was shown that renal replacement therapy significantly influences the concentration of platelet growth factors (IGF-1: p = 0.025 and PDGF-B: p = 0.012). There was a relationship between the type of renal replacement therapy and the duration of dialysis, and the concentration of IGF-1, PDGF-B (p < 0.00001, p < 0.001). CONCLUSIONS The type of renal replacement therapy has a different effect on the concentration of platelet-derived growth factors IGF-1 and PDGF-B. PD patients had the highest concentrations of all growth factors, and this may be due to the presence of inflammation induced by dialysis-related advanced end-products of glycosylation (AGE).
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Affiliation(s)
- Elżbieta Cecerska-Heryć
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland.
| | - Rafał Heryć
- Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Magda Wiśniewska
- Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Anna Michalczyk
- Department of Psychiatry, Pomeranian Medical University of Szczecin, Broniewskiego 26, 71-460, Szczecin, Poland
| | - Barbara Dołęgowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
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Wang JC, Li GY, Wang B, Han SX, Sun X, Jiang YN, Shen YW, Zhou C, Feng J, Lu SY, Liu JL, Wang MD, Liu PJ. Metformin inhibits metastatic breast cancer progression and improves chemosensitivity by inducing vessel normalization via PDGF-B downregulation. J Exp Clin Cancer Res 2019; 38:235. [PMID: 31164151 PMCID: PMC6549289 DOI: 10.1186/s13046-019-1211-2] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [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: 01/22/2019] [Accepted: 05/03/2019] [Indexed: 12/29/2022]
Abstract
Background Vascular maturity and functionality are closely associated with tumor progression and chemosensitivity. The antidiabetic agent metformin has shown its ability to inhibit tumor angiogenesis in metastatic breast cancer models. However, it remains unclear if or how metformin remodels the abnormal vasculature of metastatic breast cancer, while inhibiting angiogenesis. Methods Metastatic breast cancer models were constructed to compare microvessel density (MVD), vascular maturity and function, lung metastasis and chemosensitivity in metformin-treated or untreated mice. Protein array assay and transcriptome sequencing were performed for genetic screening. Lentiviral shRNA-PDGF-B transfection was used for observing the contribution of PDGF-B knockdown to metformin’s vascular effects. Results Metastatic breast cancers were characterized by an excessively angiogenic, immature and morphologically abnormal vasculature. Compared to control, metformin significantly reduced MVD, leakage and hypoxia, and increased vascular mural cells coverage and perfusion, namely, “vessel normalization”. Metformin at human blood concentrations had no direct effect on the migration and proliferation of cancer cells. Based on that, reduced lung metastasis of the primary tumor and improved chemosensitization by metformin were assumed to be mediated via metformin’s vascular effects. Further results of genetic screening and in vivo experiments showed that the downregulation of platelet-derived growth factor B (PDGF-B) greatly contributed to the metformin-induced vessel normalization. Conclusions These findings provide pre-clinical evidences for the vascular mechanism of metformin-induced metastasis inhibition and the chemosensitization of metastatic breast cancers. Electronic supplementary material The online version of this article (10.1186/s13046-019-1211-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ji-Chang Wang
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China.,Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China
| | - Guang-Yue Li
- Department of Science and Technology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Bo Wang
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China
| | - Su-Xia Han
- Department of Oncological Radiotherapy, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Xin Sun
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Yi-Na Jiang
- Department of Pathology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Yan-Wei Shen
- Department of Breast Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Can Zhou
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Jun Feng
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Shao-Ying Lu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Jian-Lin Liu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Mao-De Wang
- Department of Neurosurgery, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China.
| | - Pei-Jun Liu
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China. .,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China.
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Yang RC, Qu XY, Xiao SY, Li L, Xu BJ, Fu JY, Lv YJ, Amjad N, Tan C, Kim KS, Chen HC, Wang XR. Meningitic Escherichia coli-induced upregulation of PDGF-B and ICAM-1 aggravates blood-brain barrier disruption and neuroinflammatory response. J Neuroinflammation 2019; 16:101. [PMID: 31092253 PMCID: PMC6521501 DOI: 10.1186/s12974-019-1497-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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: 10/26/2018] [Accepted: 04/30/2019] [Indexed: 01/13/2023] Open
Abstract
Background Blood-brain barrier (BBB) disruption and neuroinflammation are considered key mechanisms of pathogenic Escherichia coli invasion of the brain. However, the specific molecules involved in meningitic E. coli-induced BBB breakdown and neuroinflammatory response remain unclear. Our previous RNA-sequencing data from human brain microvascular endothelial cells (hBMECs) revealed two important host factors: platelet-derived growth factor-B (PDGF-B) and intercellular adhesion molecule-1 (ICAM-1), which were significantly upregulated in hBMECs after meningitic E. coli infection. Whether and how PDGF-B and ICAM-1 contribute to the development of E. coli meningitis are still unclear. Methods The western blot, real-time PCR, enzyme-linked immunosorbent assay, immunohistochemistry, and immunofluorescence were applied to verify the significant induction of PDGF-B and ICAM-1 by meningitic E. coli in vivo and in vitro. Evan’s blue assay and electric cell-substrate impedance sensing assay were combined to identify the effects of PDGF-B on BBB permeability. The CRISPR/Cas9 technology, cell-cell adhesion assay, and electrochemiluminescence assay were used to investigate the role of ICAM-1 in neuroinflammation subversion. Results We verified the significant induction of PDGF-B and ICAM-1 by meningitic E. coli in mouse as well as monolayer hBMECs models. Functionally, we showed that the increase of PDGF-B may directly enhance the BBB permeability by decreasing the expression of tight junction proteins, and the upregulation of ICAM-1 contributed to neutrophils or monocytes recruitment as well as neuroinflammation subversion in response to meningitic E. coli infection. Conclusions Our findings demonstrated the roles of PDGF-B and ICAM-1 in mediating bacterial-induced BBB damage as well as neuroinflammation, providing new concepts and potential targets for future prevention and treatment of bacterial meningitis.
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Affiliation(s)
- Rui-Cheng Yang
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Xin-Yi Qu
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Si-Yu Xiao
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Liang Li
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Bo-Jie Xu
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Ji-Yang Fu
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yu-Jin Lv
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, Henan, China
| | - Nouman Amjad
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Chen Tan
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Kwang Sik Kim
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Huan-Chun Chen
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Xiang-Ru Wang
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, Hubei, China. .,State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
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17
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Meng W, Liu S, Li D, Liu Z, Yang H, Sun B, Liu H. Expression of platelet-derived growth factor B is upregulated in patients with thoracic aortic dissection. J Vasc Surg 2019; 68:3S-13S. [PMID: 29685513 DOI: 10.1016/j.jvs.2018.01.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 08/30/2017] [Accepted: 01/24/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Thoracic aortic dissection (TAD) is a serious condition requiring urgent treatment to avoid catastrophic consequences. The inflammatory response is involved in the occurrence and development of TAD, possibly potentiated by platelet-derived growth factors (PDGFs). This study aimed to determine whether expression of PDGF-B (a subunit of PDGF-BB) was increased in TAD patients and to explore the factors responsible for its upregulation and subsequent effects on TAD. METHODS Full-thickness ascending aorta wall specimens from TAD patients (n = 15) and control patients (n = 10) were examined for expression of PDGF-B and its receptor (PDGFRB) and in terms of morphology, inflammation, and fibrosis. Blood samples from TAD and control patients were collected to detect plasma levels of PDGF-BB and soluble elastins. RESULTS Expression levels of PDGF-B, PDGFRB, and collagen I were significantly enhanced in ascending aorta wall specimens from TAD patients compared with controls. Furthermore, soluble elastic fragments and PDGF-BB were significantly increased in plasma from TAD patients compared with controls, and numerous irregular elastic fibers and macrophages were seen in the ascending aorta wall in TAD patients. CONCLUSIONS An increase in elastic fragments in the aorta wall might be responsible for inducing the activation and migration of macrophages to injured sites, leading to elevated expression of PDGF-B, which in turn induces deposition of collagen, disrupts extracellular matrix homeostasis, and increases the stiffness of the aorta wall, resulting in compromised aorta compliance.
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Affiliation(s)
- Weixin Meng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Shangdian Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Dandan Li
- Institute of Keshan Disease, Harbin Medical University, Harbin, Heilongjiang, China
| | - Zonghong Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hui Yang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Bo Sun
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hongyu Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
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18
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Camps J, Grosemans H, Gijsbers R, Maes C, Sampaolesi M. Growth Factor Screening in Dystrophic Muscles Reveals PDGFB/PDGFRB-Mediated Migration of Interstitial Stem Cells. Int J Mol Sci 2019; 20:E1118. [PMID: 30841538 DOI: 10.3390/ijms20051118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 01/08/2023] Open
Abstract
Progressive muscle degeneration followed by dilated cardiomyopathy is a hallmark of muscular dystrophy. Stem cell therapy is suggested to replace diseased myofibers by healthy myofibers, although so far, we are faced by low efficiencies of migration and engraftment of stem cells. Chemokines are signalling proteins guiding cell migration and have been shown to tightly regulate muscle tissue repair. We sought to determine which chemokines are expressed in dystrophic muscles undergoing tissue remodelling. Therefore, we analysed the expression of chemokines and chemokine receptors in skeletal and cardiac muscles from Sarcoglycan-α null, Sarcoglycan-β null and immunodeficient Sgcβ-null mice. We found that several chemokines are dysregulated in dystrophic muscles. We further show that one of these, platelet-derived growth factor-B, promotes interstitial stem cell migration. This finding provides perspective to an approachable mechanism for improving stem cell homing towards dystrophic muscles.
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19
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Fan X, Li N, Wang X, Sun W, Li Q, Li H, Wang X, Jia A. [ PDGF-B immunogen preparation and the suppressive effect of anti-PDGF-B ascite antibody on the proliferation of hepG2 cells]. Sheng Wu Gong Cheng Xue Bao 2019; 34:396-406. [PMID: 29577690 DOI: 10.13345/j.cjb.170325] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To observe the immunogenicity of hPDGF-B immunogens that were synthesized with the fusional expression vector pET28-Trx and to test the suppressive effect of these specific antibodies induced by both of immunogens on proliferation of human HepG2 hepatoma cells. First, we chose 2 antigenic epitopes hPDGF-BΔ103-118aa and hPDGF-BΔ152-167aa from human PDGF-B and inserted these 2 coding regions into the empty vector plasmid pET28-Trx, separately. Second, mice were immunized with purified recombinant proteins to generate polyclonal antibody. Then we intraperitoneally injected mice bearing hepatoma 22 (H22) tumor cells to prepare antibody ascites. ELISA and Western blot were used to detect the titer and the utility of the antibody, respectively. Finally, HepG2 cells were exposed to PDGF-BB protein or anti-PDGF-B ascite antibody in different dilution concentrations groups and the proliferation of HepG2 cells was quantified by CCK8 assay. As the results, we identified mice that could produce high drop of neutralizing antibodies against hPDGF-B induced by both two recombinant proteins. Two anti-PDGF-B ascite antibodies could markedly inhibit the proliferation of HepG2 cells by blocking the stimulating effect of PDGF-BB protein. Our results suggest that Trx-PDGF-B recombinant protein as immunogen provides a new method for the preparation of PDGF-B vaccine, and also a new idea for the treatment of hepatocellular carcinoma in clinical practice.
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Affiliation(s)
- Xiude Fan
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Na Li
- Department of Rehabilitation, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Xiqiang Wang
- Department of Cardiology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Wengang Sun
- Department of Rheumatism, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Qian Li
- Department of Rheumatism, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Hanchao Li
- Department of Rheumatism, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Xiaoyun Wang
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Ai Jia
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
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20
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Appolloni I, Alessandrini F, Ceresa D, Marubbi D, Gambini E, Reverberi D, Loiacono F, Malatesta P. Progression from low- to high-grade in a glioblastoma model reveals the pivotal role of immunoediting. Cancer Lett 2019; 442:213-21. [PMID: 30312732 DOI: 10.1016/j.canlet.2018.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/08/2018] [Accepted: 10/04/2018] [Indexed: 01/23/2023]
Abstract
The mutual reshape of tumor and immune system cells during tumor progression is a widely accepted notion in different cancers including gliomas. The importance of this phenomenon in shaping glioma progression and the mechanisms governing it, however, are not fully elucidated. Taking advantage of a well-characterized in vivo glioma model we performed an analysis of glioma cells transcriptomes at different stages of progression and unveiled the reorganization of glioma-immune system interactions. Specifically, we show that the inability of low-grade glioma cells to orthotopically graft in syngeneic immunocompetent mice, positively correlates with the abundance of infiltrating lymphocytes in donor tumors and with a highly immunostimulatory transcriptional profile. Notably, during tumor progression glioma cells downregulate these genes and the immune infiltrate shifts towards a pro-tumorigenic phenotype. Challenging low-grade gliomas by grafting into immunodeficient hosts revealed the crucial role of the adaptive immune system in constraining glioma progression. Finally, we observed that although progression still takes place in immunodeficient mice, it is slower, likely due to a milder selection thus reinforcing the view of a pivotal role for the immune system in regulating glioma progression.
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21
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Zhang Y, Wang D, Li M, Wei X, Liu S, Zhao M, Liu C, Wang X, Jiang X, Li X, Zhang S, Bergquist J, Wang B, Yang C, Mi J, Tian G. Quantitative Proteomics of TRAMP Mice Combined with Bioinformatics Analysis Reveals That PDGF-B Regulatory Network Plays a Key Role in Prostate Cancer Progression. J Proteome Res 2018; 17:2401-2411. [PMID: 29863873 DOI: 10.1021/acs.jproteome.8b00158] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 12/20/2022]
Abstract
Transgenic adenocarcinoma of the mouse prostate (TRAMP) mice is a widely used transgenic animal model of prostate cancer (PCa). We performed a label-free quantitative proteomics analysis combined with a bioinformatics analysis on the entire prostate protein extraction from TRAMP mice and compared it with WT littermates. From 2379 total identified proteins, we presented a modest mice prostate reference proteome containing 919 proteins. 61 proteins presented a significant expression difference between two groups. The integrative bioinformatics analysis predicted the overexpression of platelet-derived growth factor B (PDGF-B) in tumor tissues and supports the hypothesis of the PDGF-B signaling network as a key upstream regulator in PCa progression. Furthermore, we demonstrated that Crenolanib, a novel PDGF receptor inhibitor, inhibited PCa cell proliferation in a dose-dependent manner. Finally, we revealed the importance of PDGF-B regulatory network in PCa progression, which will assist us in understanding the role and mechanisms of PDGF-B in promoting cancer growth and provide valuable knowledge for future research on anti-PDGF therapy.
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Affiliation(s)
- Yuan Zhang
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Dan Wang
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China.,Department of Radiology , Affiliated Hospital of Binzhou Medical University , 661 Second Huanghe Road , Binzhou , Shandong Province 256603 , China
| | - Min Li
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Xiaodan Wei
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Shuang Liu
- College of Enology , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Miaoqing Zhao
- Department of Pathology , Provincial Hospital Affiliated to Shandong University , No. 324 Jingwu Weiqi Road , Jinan , Shandong Province 250021 , China
| | - Chu Liu
- Department of Urology , Yantai Yuhuangding Hospital , Zhifu District, No. 20, Yuhuangding East Road , Yantai , Shandong Province 264000 , China
| | - Xizhen Wang
- Imaging Center , Affiliated Hospital of Weifang Medical University , Kuiwen District, No. 465, Yuhe Road , Weifang , Shandong Province 256603 , China
| | - Xingyue Jiang
- Department of Radiology , Affiliated Hospital of Binzhou Medical University , 661 Second Huanghe Road , Binzhou , Shandong Province 256603 , China
| | - Xuri Li
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Shuping Zhang
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Jonas Bergquist
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China.,Department of Chemistry - BMC , Uppsala University , P.O. Box 599, Husargatan 3 , Uppsala 75124 , Sweden
| | - Bin Wang
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Chunhua Yang
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
| | - Jia Mi
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China.,Department of Chemistry - BMC , Uppsala University , P.O. Box 599, Husargatan 3 , Uppsala 75124 , Sweden
| | - Geng Tian
- Medicine and Pharmacy Research Center , Binzhou Medical University , Laishan District, No. 346, Guanhai Road , Yantai , Shandong Province 264003 , China
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22
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Vu CQ, Rotkrua P, Soontornworajit B, Tantirungrotechai Y. Effect of PDGF-B aptamer on PDGFRβ/PDGF-B interaction: Molecular dynamics study. J Mol Graph Model 2018; 82:145-156. [PMID: 29738888 DOI: 10.1016/j.jmgm.2018.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/23/2018] [Accepted: 04/21/2018] [Indexed: 12/27/2022]
Abstract
PDGFRβ/PDGF-B interaction plays a role in angiogenesis, and is mandatory in wound healing and cancer treatment. It has been reported that the PDGF-B aptamer was able to bind to PDGF-B, thus regulating the angiogenesis. However, the binding interaction between the aptamer and the growth factor, including the binding sites, has not been well investigated. This study applied a molecular dynamics (MD) simulation to investigate the aptamer-growth factor interaction in the presence or absence of a receptor (PDGFRβ). Characterization of the structure of an aptamer-growth factor complex revealed binding sites from each section in the complex. Upon the complex formation, PDGF-B and its aptamer exhibited less flexibility in their molecular movement, as indicated by the minimum values of RMSD, RMSF, loop-to-loop distance, and the summation of PCA eigenvalues. Our study of residue pairwise interaction demonstrated that the binding interaction was mainly contributed by electrostatic interaction between the positively-charged amino acid and the negatively-charged phosphate backbone. The role of the PDGF-B aptamer in PDGFRβ/PDGF-B interaction was also investigated. We demonstrated that the stability of the Apt-PDGF-B complex could prevent the presence of a competitor, of PDGFRβ, interrupting the binding process. Because the aptamer was capable of binding with PDGF-B, and blocking the growth factor from the PDGFRβ, it could down regulate the consequent signaling pathway. We provide evidence that the PDGF-BB aptamer is a promising molecule for regulation of angiogenesis. The MD study provides a molecular understanding to modification of the aptamer binding interaction, which could be used in a number of medical applications.
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Affiliation(s)
- Cong Quang Vu
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani, Thailand
| | - Pichayanoot Rotkrua
- Division of Biochemistry, Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
| | - Boonchoy Soontornworajit
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani, Thailand
| | - Yuthana Tantirungrotechai
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani, Thailand.
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23
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Zhang XA, Guo CT, Lu QB, Hu JG, Cui N, Yang ZD, Peng W, Liu R, Hu CY, Qin SL, Wang XJ, Ding SJ, Huang DD, Liu W, Cao WC. The platelet derived growth factor-B polymorphism is associated with risk of severe fever with thrombocytopenia syndrome in Chinese individuals. Oncotarget 2017; 7:33340-9. [PMID: 27147565 PMCID: PMC5078099 DOI: 10.18632/oncotarget.9043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 12/06/2015] [Accepted: 04/11/2016] [Indexed: 01/29/2023] Open
Abstract
Background Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by a novel bunyavirus named SFTS virus (SFTSV). We hypothesize that host genetic variations may contribute to susceptibility to SFTS. Results Compared with the rs1800818 AA genotype, AG + GG genotypes were significantly associated with increased susceptibility to SFTS (odds ratio, 1.66, 95% confidence interval = 1.28-2.16; P < 0.001). By using the ELISA assay, we observed that PDGF-BB concentration was significantly reduced in acute phase of patients than in the controls (P < 0.001) and recovered patients at 6 month (P = 0.007) and 12 month (P = 0.003). A persistently reduced PDGF-BB was also revealed from the SFTSV-infected C57BL/6J mice (P < 0.001). The rs1800818 G allele was associated with decreased serum PDGF-BB levels in SFTS patients at their early infection (P = 0.015). In accordance, the relative mRNA levels of the at-risk G allele of 1800818 were lower than those of the A allele in heterozygous cell from acute phase of SFTS patients. PDGF-B rs1800818 conferred no susceptibility to severe or fatal outcome in SFTS patients. Materials and Methods An initially small-scale case-control association study guided the selection of platelet derived growth factor-B (PDGF-B) rs1800818 in 1020 SFTS patients and 1353 controls. Functional analyses were conducted to verify the biological significance of rs1800818 polymorphism. Conclusions Our findings suggest that the PDGF-B rs1800818 polymorphism might play a role in mediating the susceptibility to SFTS.
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Affiliation(s)
- Xiao-Ai Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China
| | - Chen-Tao Guo
- Graduate School of Anhui Medical University, Hefei, 230032, P. R. China
| | - Qing-Bin Lu
- School of Public Health, Peking University, Beijing, 100191, P. R. China
| | - Jian-Gong Hu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China
| | - Ning Cui
- The 154 Hospital, People's Liberation Army, Xinyang, 464000, P. R. China
| | - Zhen-Dong Yang
- The 154 Hospital, People's Liberation Army, Xinyang, 464000, P. R. China
| | - Wei Peng
- The Shangcheng People's Hospital, Xinyang, 464000, P. R. China
| | - Rong Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China
| | - Chun-Yan Hu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China
| | - Shu-Li Qin
- The 154 Hospital, People's Liberation Army, Xinyang, 464000, P. R. China
| | - Xian-Jun Wang
- Shandong Provincial Center for Disease Control and Prevention, Jinan, 250001, P. R. China
| | - Shu-Jun Ding
- Shandong Provincial Center for Disease Control and Prevention, Jinan, 250001, P. R. China
| | - Dou-Dou Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China.,Graduate School of Anhui Medical University, Hefei, 230032, P. R. China
| | - Wei Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China.,Graduate School of Anhui Medical University, Hefei, 230032, P. R. China
| | - Wu-Chun Cao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, P. R. China
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24
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Liu F, Zhang Y, Men T, Jiang X, Yang C, Li H, Wei X, Yan D, Feng G, Yang J, Bergquist J, Wang B, Jiang W, Mi J, Tian G. Quantitative proteomic analysis of gastric cancer tissue reveals novel proteins in platelet-derived growth factor b signaling pathway. Oncotarget 2017; 8:22059-22075. [PMID: 28423550 PMCID: PMC5400646 DOI: 10.18632/oncotarget.15908] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 12/02/2016] [Accepted: 02/07/2017] [Indexed: 12/15/2022] Open
Abstract
Gastric cancer is one of the most common cancers in Asian countries. Searching for reliable biomarkers involving the development of gastric cancer is important for clinical practice. Quantitative proteomics has become an important method contributed to the discovery of novel diagnostic or therapeutic targets for the management of cancer. Here, we identified differently expressed proteins in gastric cancer and normal gastric tissues by using the high resolution mass spectrometer. Among the total of 2280 identified proteins, 87 were differentially expressed between gastric cancer and normal gastric tissues. Notably, several significant proteins are in the PDGF-B signaling pathway, including peroxiredoxin5 (PRDX5), S100A6, calreticulin (CALR) and cathepsin D (CTSD), which were validated by western blot. Furthermore, upstream regulators including PDGF-B, PDGFR-β, Akt, eIF4E and p70s6K were found significantly increased in the gastric cancer tissues. In addition, silencing of PRDX5 and PDGF-B suppressed the proliferation of gastric cancer cells in vitro. The administration of exogenous PDGF-BB recovered the reduced expression of PDGF-B signaling pathway in PDGF-B knockdown cells. Taken together, our findings suggested that PDGF-B signaling pathway plays an important role in the regulation of gastric cancer proliferation and the inhibition of this pathway may be a potential approach for treatment of gastric cancer.
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Affiliation(s)
- Fang Liu
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China.,Department of Radiology, Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong Province, 256603 China
| | - Yuan Zhang
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Tingting Men
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Xingyue Jiang
- Department of Radiology, Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong Province, 256603 China
| | - Chunhua Yang
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - He Li
- Department of Gastric and Intestine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Xiaodan Wei
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Dong Yan
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Gangming Feng
- Yantai Institute, China Agriculture University, Yantai, Shandong Province, 264670 China
| | - Jianke Yang
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Jonas Bergquist
- Department of Chemistry - BMC, Uppsala University, Uppsala, 75124, Sweden
| | - Bin Wang
- Department of Radiology, Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong Province, 256603 China
| | - Wenguo Jiang
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
| | - Jia Mi
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China.,Department of Chemistry - BMC, Uppsala University, Uppsala, 75124, Sweden
| | - Geng Tian
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong Province, 264003 China
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25
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Salva E, Turan SÖ, Akbuğa J. Inhibition of Glomerular Mesangial Cell Proliferation by si PDGF-B- and siPDGFR-β-Containing Chitosan Nanoplexes. AAPS PharmSciTech 2017; 18:1031-1042. [PMID: 27975193 DOI: 10.1208/s12249-016-0687-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 12/05/2016] [Indexed: 01/23/2023] Open
Abstract
Mesangioproliferative glomerulonephritis is a disease that has a high incidence in humans. In this disease, the proliferation of glomerular mesangial cells and the production of extracellular matrix are important. In recent years, the RNAi technology has been widely used in the treatment of various diseases due to its capability to inhibit the gene expression with high specificity and targeting. The objective of this study was to decrease mesangial cell proliferation by knocking down PDGF-B and its receptor, PDGFR-β. To be able to use small interfering RNAs (siRNAs) in the treatment of this disease successfully, it is necessary to develop appropriate delivery systems. Chitosan, which is a biopolymer, is used as a siRNA delivery system in kidney drug targeting. In order to deliver siRNA molecules targeted at PDGF-B and PDGFR-β, chitosan/siRNA nanoplexes were prepared. The in vitro characterization, transfection studies, and knockdown efficiencies were studied in immortalized and primary rat mesangial cells. In addition, the effects of chitosan nanoplexes on mesangial cell proliferation and migration were investigated. After in vitro transfection, the PDGF-B and PDGFR-β gene silencing efficiencies of PDGF-B and PDGFR-β targeting siRNA-containing chitosan nanoplexes were 74 and 71% in immortalized rat mesangial cells and 66 and 62% in primary rat mesangial cells, respectively. siPDGF-B- and siPDGFR-β-containing nanoplexes indicated a significant decrease in mesangial cell migration and proliferation. These results suggested that mesangial cell proliferation may be inhibited by silencing of the PDGF-B signaling pathway. Gene silencing approaches with chitosan-based gene delivery systems have promise for the efficient treatment of renal disease.
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26
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Song S, Zhang M, Yi Z, Zhang H, Shen T, Yu X, Zhang C, Zheng X, Yu L, Ma C, Liu Y, Zhu D. The role of PDGF-B/TGF-β1/neprilysin network in regulating endothelial-to-mesenchymal transition in pulmonary artery remodeling. Cell Signal 2016; 28:1489-501. [PMID: 27373199 DOI: 10.1016/j.cellsig.2016.06.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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: 11/12/2015] [Revised: 05/07/2016] [Accepted: 06/29/2016] [Indexed: 12/13/2022]
Abstract
Endothelial-to-mesenchymal transition (EndoMT) has been recognized as a major reason for the pulmonary artery remodeling (PAR) in pulmonary artery hypertension (PAH). However, the molecular mechanisms and regulatory pathways involved in the EndoMT remain undefined. In the present study, we have confirmed that EndoMT was occurred in pulmonary arteries of rats induced by hypoxia and monocrotaline and in hypoxic pulmonary artery endothelial cells (PAECs). Moreover, hypoxia increased the expression of platelet-derived growth factor (PDGF) and transforming growth factor-β1 (TGF-β1) and decreased the expression of neprilysin (NEP), which contributed to the hypoxia-induced EndoMT of PAECs. Furthermore, a reciprocal regulation of PDGF-B and TGF-β1 induced by decreasing NEP promoted the EndoMT of PAECs under hypoxia, which was a novel molecular mechanism to reveal the EndoMT participating in PAR. More importantly, imatinib, a PDGF receptor antagonist, relieved PAR and EndoMT in PAH rats. Thus, our results identify a novel mechanism to reveal the formation of EndoMT in PAH, and imply that imatinib may serve as a new therapeutic approach for treatment of the third cardiovascular disease.
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Affiliation(s)
- Shasha Song
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Min Zhang
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Zhi Yi
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Hongyue Zhang
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Tingting Shen
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Xiufeng Yu
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Chen Zhang
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Xiaodong Zheng
- Department of Pathophysiology, College of Basic Medicine, Harbin Medical University (Daqing), Daqing 163319, China
| | - Lei Yu
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Cui Ma
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China; Department of Immunology, College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, China
| | - Yang Liu
- Department of clinical nursing, College of nursing, Harbin Medical University (Daqing), Daqing 163319, China
| | - Daling Zhu
- Department of Biopharmaceutical Sciences, College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China; Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin 150081, China.
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Cumpănas AA, Cimpean AM, Ferician O, Ceausu RA, Sarb S, Barbos V, Dema A, Raica M. The Involvement of PDGF-B/PDGFRβ Axis in the Resistance to Antiangiogenic and Antivascular Therapy in Renal Cancer. Anticancer Res 2016; 36:2291-2295. [PMID: 27127135] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 04/18/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND/AIM Studies developed in the field of platelet-derived growth factors/platelet-derived growth factor receptors (PDGFs/PDGFRs) inhibition have focused on the therapeutic effects on tumor cells, neglecting their potential effects on tumor blood vessels. We herein propose a differential and critic assessment of platelet-derived growth factor B (PDGF-B) and platelet-derived growth factor receptor β (PDGFRβ) in renal cell carcinoma, correlated with the four main vascular patterns previously reported by our team. MATERIALS AND METHODS PDGF-B and PDGFRβ were evaluated on 50 archival paraffin embedded specimens related to vascular endothelial growth factor (VEGF), its inhibitory isoform VEGF165b and vascular patterns. RESULTS AND CONCLUSION Our results support the involvement of VEGF165b in the phosphorylation of PDGFRβ with an inhibitory effect on endothelial proliferation and migration. The simultaneous action of PDGF-B/PDGFRβ and VEGF165b on the same type of receptor may explain the resistance to antiangiogenic therapy, which depends on the degree of modulation of PDGFRβ phosphorylation.
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MESH Headings
- Angiogenesis Inhibitors/pharmacology
- Antineoplastic Agents/pharmacology
- Becaplermin
- Carcinoma, Renal Cell/blood supply
- Carcinoma, Renal Cell/chemistry
- Carcinoma, Renal Cell/drug therapy
- Drug Resistance, Neoplasm/physiology
- Humans
- Kidney Neoplasms/blood supply
- Kidney Neoplasms/chemistry
- Kidney Neoplasms/drug therapy
- Neovascularization, Pathologic/drug therapy
- Neovascularization, Pathologic/metabolism
- Phosphorylation
- Protein Kinase Inhibitors/pharmacology
- Protein Processing, Post-Translational
- Proto-Oncogene Proteins c-sis/analysis
- Proto-Oncogene Proteins c-sis/physiology
- Receptor, Platelet-Derived Growth Factor beta/analysis
- Receptor, Platelet-Derived Growth Factor beta/antagonists & inhibitors
- Receptor, Platelet-Derived Growth Factor beta/physiology
- Retrospective Studies
- Vascular Endothelial Growth Factor A/analysis
- Vascular Endothelial Growth Factor A/physiology
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Affiliation(s)
- Alin Adrian Cumpănas
- Department of Ortophedic Surgery, Traumatology and Urology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Anca Maria Cimpean
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Timisoara, Romania
| | - Ovidiu Ferician
- Department of Ortophedic Surgery, Traumatology and Urology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Raluca Amalia Ceausu
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Timisoara, Romania
| | - Simona Sarb
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Timisoara, Romania
| | - Vlad Barbos
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Timisoara, Romania
| | - Alice Dema
- Department of Pathology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Marius Raica
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Timisoara, Romania
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28
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Almahrog AJ, Radwan LRS, El-Zehery RR, Mourad MI, Grawish ME. In vivo association of immunophenotyped macrophages expressing CD163 with PDGF-B in gingival overgrowth-induced by three different categories of medications. J Oral Biol Craniofac Res 2016; 6:10-7. [PMID: 26937363 DOI: 10.1016/j.jobcr.2015.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 09/29/2015] [Accepted: 12/19/2015] [Indexed: 12/23/2022] Open
Abstract
AIMS This study was carried out to identify and outline the degree of relationship between immunophenotyped macrophages expressing CD163 and PDGF-B in cyclosporine-A, phenytoin, and nifedipine-induced gingival overgrowth. METHODS Eighty adult male albino rats were selected and divided into four equal groups. Group I received no treatment. Rats of groups II, III, and IV were administered cyclosporine-A, phenytoin, and nifedipine, respectively. Routine tissue processing was carried out for staining with CD163 and PDGF-B. The results of this study were analyzed statistically. RESULTS Group I exhibited score 0 gingival overgrowth while group II yielded score 3 with blunt and bulbous gingival crests. Rats of group III showed score 2 with knife edge and group IV revealed less pronounced gingival overgrowth and mostly the gingival crest was knife edge. Group II had the highest mean value for CD163 while group I showed the lowest value. In addition, group II had the highest mean value for PDGF-B while group I showed the lowest value. Statistically, there was an overall significant difference between the studied groups as well as between each two groups. CONCLUSION Strong association exists between immunophenotyped macrophages expressing CD163 and PDGF-B in GO induced by these medications. In addition, CD163 and PDGF-B upregulated in cyclosporine-A-induced GO compared to phenytoin and nifedipine medications.
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Affiliation(s)
- Amina J Almahrog
- Department of Oral Biology, Faculty of Dentistry, Almergib University, Libya
| | - Lobna R S Radwan
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Egypt
| | - Rehab R El-Zehery
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Egypt
| | - Mohamed I Mourad
- Department of Oral Pathology, Faculty of Dentistry, Mansoura University, Egypt
| | - Mohammed E Grawish
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Egypt; Department of Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Gamasa, Mansoura, Egypt
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29
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Frei K, Gramatzki D, Tritschler I, Schroeder JJ, Espinoza L, Rushing EJ, Weller M. Transforming growth factor-β pathway activity in glioblastoma. Oncotarget 2016; 6:5963-77. [PMID: 25849941 PMCID: PMC4467414 DOI: 10.18632/oncotarget.3467] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [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: 11/20/2014] [Accepted: 01/22/2015] [Indexed: 12/02/2022] Open
Abstract
Transforming growth factor (TGF)-β is a central molecule maintaining the malignant phenotype of glioblastoma. Anti-TGF-β strategies are currently being explored in early clinical trials. Yet, there is little contemporary data on the differential expression of TGF-β isoforms at the mRNA and protein level or TGF-β/Smad pathway activity in glioblastomas in vivo. Here we studied 64 newly diagnosed and 16 recurrent glioblastomas for the expression of TGF-β1-3, platelet-derived growth factor (PDGF)-B, and plasminogen activator inhibitor (PAI)-1 mRNA by RT-PCR and for the levels of TGF-β1-3 protein, phosphorylated Smad2 (pSmad2), pSmad1/5/8 and PAI-1 by immunohistochemistry. Among the TGF-β isoforms, TGF-β1 mRNA was the most, whereas TGF-β3 mRNA was the least abundant. TGF-β1-3 mRNA expression was strongly correlated, as was the expression of TGF-β1-3 mRNA, and of the TGF-β1-3 target genes, PDGF-B and PAI-1. TGF-β2 and TGF-β3 protein levels correlated well, whereas the comparison of the other TGF-βisoforms did not. Positive correlation was also observed between TGF-β1 and pSmad1/5/8 and between pSmad2 and pSmad1/5/8. Survival analyses indicated that a group of patients with high expression levels of TGF-β2 mRNA or pSmad1/5/8 protein have inferior outcome. We thus provide potential biomarkers for patient stratification in clinical trials of anti-TGF-β therapies in glioblastoma.
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Affiliation(s)
- Karl Frei
- Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
| | - Dorothee Gramatzki
- Laboratory for Molecular Neuro-Oncology, Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - Isabel Tritschler
- Laboratory for Molecular Neuro-Oncology, Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - Judith Johanna Schroeder
- Laboratory for Molecular Neuro-Oncology, Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - Larisa Espinoza
- Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
| | | | - Michael Weller
- Laboratory for Molecular Neuro-Oncology, Department of Neurology, University Hospital Zurich, Zurich, Switzerland.,Neuroscience Center Zurich, University of Zurich, Zurich, Switzerland
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30
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Chung SW, Bae SM, Lee M, Al-Hilal TA, Lee CK, Kim JK, Kim IS, Kim SY, Byun Y. LHT7, a chemically modified heparin, inhibits multiple stages of angiogenesis by blocking VEGF, FGF2 and PDGF-B signaling pathways. Biomaterials 2014; 37:271-8. [PMID: 25453957 DOI: 10.1016/j.biomaterials.2014.10.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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: 06/23/2014] [Accepted: 10/02/2014] [Indexed: 12/11/2022]
Abstract
Despite the therapeutic benefits of the angiogenesis inhibitors shown in the clinics, they have encountered an unexpected limitation by the occurrence of acquired resistance. Although the mechanism of the resistance is not clear so far, the upregulation of alternative angiogenic pathways and stabilization of endothelium by mural cells were reported to be responsible. Therefore, blocking multiple angiogenic pathways that are crucial in tumor angiogenesis has been highlighted to overcome such limitations. To develop an angiogenesis inhibitor that could block multiple angiogenic factors, heparin is an excellent lead compound since wide array of angiogenic factors are heparin-binding proteins. In previous study, we reported a heparin-derived angiogenesis inhibitor, LHT7, as a potent angiogenesis inhibitor and showed that it blocked VEGF signaling pathway. Here we show that LHT7 could block the fibroblast growth factor 2 (FGF2) and platelet-derived growth factor B (PDGF-B) in addition to VEGF. Simultaneous blockade of these angiogenic factors resulted in inhibition of multiple stages of the angiogenic process, including initial angiogenic response to maturation of the endothelium by pericyte coverage in vitro. In addition, the treatment of LHT7 in vivo did not show any sign of vascular normalization and directly led to decreased blood perfusion throughout the tumor. Our findings show that LHT7 could effectively inhibit tumor angiogenesis by blocking multiple stages of the angiogenesis, and could potentially be used to overcome the resistance.
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Affiliation(s)
- Seung Woo Chung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Sang Mun Bae
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu 700-422, South Korea
| | - Myungjin Lee
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - Taslim A Al-Hilal
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Chang Kyung Lee
- Division of Magnetic Resonance, Korea Basic Science Institute, Cheongwon, Chungbuk 363-883, South Korea; Department of Radiology, Research Institute of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - Jeong Kon Kim
- Division of Magnetic Resonance, Korea Basic Science Institute, Cheongwon, Chungbuk 363-883, South Korea; Department of Radiology, Research Institute of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - In-San Kim
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu 700-422, South Korea; Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea
| | - Sang Yoon Kim
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea; Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea
| | - Youngro Byun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergent Science and Technology, Seoul National University, Seoul 151-742, South Korea.
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31
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Zhou Y, Jin G, Mi R, Dong C, Zhang J, Liu F. The methylation status of the platelet-derived growth factor-B gene promoter and its regulation of cellular proliferation following folate treatment in human glioma cells. Brain Res 2014; 1556:57-66. [PMID: 24502980 DOI: 10.1016/j.brainres.2014.01.045] [Citation(s) in RCA: 9] [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] [Received: 10/10/2013] [Revised: 01/21/2014] [Accepted: 01/28/2014] [Indexed: 12/13/2022]
Abstract
Platelet-derived growth factor-B (PDGF-B) is a growth factor that regulates cell migration, proliferation, and differentiation, and is involved in several physical and pathological processes. The overexpression of PDGF-B in glioma surgical samples revealed its effect on tumorigenesis. In this study, we determined that the expression of PDGF-B in 54 glioma samples varied among different grades and was correlated with the cell proliferation marker, Ki-67. Using pyrosequencing, we quantitatively assessed PDGF-B gene methylation levels and determined that hypomethylation promotes increased expression of PDGF-B in higher grade gliomas. Furthermore, we treated two glioma cell lines with a demethylating agent (5-aza-2'-deoxycitidine, 5-aza-dC) or a remethylating agent (folate) to alter the methylation status of PDGF-B. The epigenetic regulation of the PDGF-B gene not only modulated the expression levels of PDGF-B but also affected the cellular proliferation induced by TGFβ-Smad activity and the PDGF-B peptide itself. Our work showed the importance of the methylation status of the PDGF-B gene promoter, and suggests that the epigenetic regulation of the PDGF-B gene may serve as a potential therapeutic target for the inhibition of glioma proliferation.
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Affiliation(s)
- Yiqiang Zhou
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Guishan Jin
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Ruifang Mi
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Chengyuan Dong
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Jin Zhang
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China
| | - Fusheng Liu
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing 100050, PR China.
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32
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Kuzmanov A, Hopfer U, Marti P, Meyer-Schaller N, Yilmaz M, Christofori G. LIM-homeobox gene 2 promotes tumor growth and metastasis by inducing autocrine and paracrine PDGF-B signaling. Mol Oncol 2013; 8:401-16. [PMID: 24423492 DOI: 10.1016/j.molonc.2013.12.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [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: 11/08/2013] [Revised: 12/11/2013] [Accepted: 12/16/2013] [Indexed: 12/17/2022] Open
Abstract
An epithelial-mesenchymal transition (EMT) is a critical process during embryonic development and the progression of epithelial tumors to metastatic cancers. Gene expression profiling has uncovered the transcription factor LIM homeobox gene 2 (Lhx2) with up-regulated expression during TGFβ-induced EMT in normal and cancerous breast epithelial cells. Loss and gain of function experiments in transgenic mouse models of breast cancer and of insulinoma in vivo and in breast cancer cells in vitro indicate that Lhx2 plays a critical role in primary tumor growth and metastasis. Notably, the transgenic expression of Lhx2 during breast carcinogenesis promotes vessel maturation, primary tumor growth, tumor cell intravasation and metastasis by directly inducing the expression of platelet-derived growth factor (PDGF)-B in tumor cells and by indirectly increasing the expression of PDGF receptor-β (PDGFRβ) on tumor cells and pericytes. Pharmacological inhibition of PDGF-B/PDGFRβ signaling reduces vessel functionality and tumor growth and Lhx2-induced cell migration and cell invasion. The data indicate a dual role of Lhx2 during EMT and tumor progression: by inducing the expression of PDGF-B, Lhx2 provokes an autocrine PDGF-B/PDGFRβ loop required for cell migration, invasion and metastatic dissemination and paracrine PDGF-B/PDGFRβ signaling to support blood vessel functionality and, thus, primary tumor growth.
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Affiliation(s)
- Aleksandar Kuzmanov
- Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058 Basel, Switzerland
| | - Ulrike Hopfer
- Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058 Basel, Switzerland; Novartis, Basel, Switzerland
| | - Patricia Marti
- Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058 Basel, Switzerland; Novartis, Basel, Switzerland
| | | | - Mahmut Yilmaz
- Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058 Basel, Switzerland; Roche, Basel, Switzerland
| | - Gerhard Christofori
- Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058 Basel, Switzerland.
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Peng M, Cai P, Ma H, Meng H, Xu Y, Zhang X, Si G. Chinese herbal medicine Shenqi Detoxification Granule inhibits fibrosis in adenine induced chronic renal failure rats. Afr J Tradit Complement Altern Med 2013; 11:194-204. [PMID: 24653577 DOI: 10.4314/ajtcam.v11i1.31] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Progressive fibrosis accompanies all chronic renal disease, connective tissue growth factor (CTGF,) and platelet-derived growth factor-B, (PDGF-B,) play important roles in extra-cellular matrix abnormal accumulation, while endothelin-1 (ET-1) nitric oxide (NO,) are related to endothelial dysfunction, which mediates the progression of renal fibrosis. Shenqi Detoxification Granule (SDG), a traditional Chinese herbal formula, has been used for treatment of chronic renal failure in clinic for many years. MATERIALS AND METHODS In order to evaluate the efficacy, and explore the mechanism of SDG to inhibit the progression of renal fibrosis, study was carried out using the adenine-induced Wister rats as the CRF model, and losartan as postive control drug. Levels of serum creatinine [Scr], and blood urea nitrogen (BUN), albumin (ALB), 24hrs, urine protein (24hUP), triacylglycerol (TG), and cholesterol (CHO), together with ET-1, and NO were detected. Pathological changes of renal tissues were observed by HE, staining. In addition, CTGF and PDGF-B expression were analyzed by immuno-histo-chemistry. RESULTS The results indicated that SDG can effectively reduce Scr, BUN, 24hUP, TG, and CHO levels, increase ALB levels, inhibit renal tissue damage in CRF rats, and the mechanism maybe reduce PDGF-B, CTGF expression and ET-1/NO. CONCLUSION Shenqi Detoxification Granule is a beneficial treatment for chronic renal failure.
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Affiliation(s)
- Min Peng
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
| | - Pingping Cai
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
| | - Hongbo Ma
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
| | - Hongyan Meng
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
| | - Yuan Xu
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
| | - Xiaoyi Zhang
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
| | - Guomin Si
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, 324, Jinwu Weiqi Road, Ji'nan, 250021, China
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34
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Neubauer B, Machura K, Rupp V, Tallquist MD, Betsholtz C, Sequeira-Lopez MLS, Ariel Gomez R, Wagner C. Development of renal renin-expressing cells does not involve PDGF-B-PDGFR-β signaling. Physiol Rep 2013; 1:e00132. [PMID: 24303195 PMCID: PMC3841059 DOI: 10.1002/phy2.132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 06/17/2013] [Revised: 09/23/2013] [Accepted: 09/27/2013] [Indexed: 12/29/2022] Open
Abstract
Apart from their endocrine functions renin-expressing cells play an important functional role as mural cells of the developing preglomerular arteriolar vessel tree in the kidney. The recruitment of renin-expressing cells from the mesenchyme to the vessel wall is not well understood. Assuming that it may follow more general lines of pericyte recruitment to endothelial tubes we have now investigated the relevance of the platelet-derived growth factor (PDGF)-B-PDGFR-β signaling pathway in this context. We studied renin expression in kidneys lacking PDGFR-β in these cells and in kidneys with reduced endothelial PDGF-B expression. We found that expression of renin in the kidneys under normal and stimulated conditions was not different from wild-type kidneys. As expected, PDGFR-β immunoreactivity was found in mesangial, adventitial and tubulo-interstitial cells but not in renin-expressing cells. These findings suggest that the PDGF-B-PDGFR-β signaling pathway is not essential for the recruitment of renin-expressing cells to preglomerular vessel walls in the kidney.
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Affiliation(s)
- Bjoern Neubauer
- Institute of Physiology, University of Regensburg Regensburg, Germany
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35
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Zhang Y, Ma Y, Wu C, Miron RJ, Cheng X. Platelet-derived growth factor BB gene-released scaffolds: biosynthesis and characterization. J Tissue Eng Regen Med 2013; 10:E372-E381. [PMID: 24130059 DOI: 10.1002/term.1825] [Citation(s) in RCA: 10] [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] [Received: 11/19/2012] [Revised: 07/25/2013] [Accepted: 08/30/2013] [Indexed: 12/13/2022]
Abstract
Tissue engineering generally requires three basic elements; stem/progenitor cells, inductive agents and a biomaterial scaffold; the latter is one of the key components which directly influences cellular activity and matrix formation. Commonly used scaffolds to repair defects in general do not induce stem cell recruitment, which is an essential element to tissue regeneration. In this study, fabrication of a scaffold which is capable of restoring damaged tissue through the recruitment of mesenchymal stem cells (MSCs) by gene therapy of the gene encoding platelet-derived growth factor-B (PDGF-B) was investigated. PDGF-B adenovirus (AdPDGF) was combined into novel mesoporous bioglass-silk fibrin scaffolds, which were characterized for their controlled release and sustained bioactivity. Our results demonstrate that these scaffolds can release PDGF-B adenovirus for up to 3 weeks and increase MSC recruitment, both in vitro and following subcutaneous implantation in mice. Osseous calvarial defects in mice further demonstrate the ability of these scaffolds to enhance tissue regeneration through stem cell homing. This study demonstrates the potent ability of host stem cells to regenerate tissue defects through recruitment of MSCs via gene therapy. Copyright © 2013 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yufeng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China.
| | - Yihui Ma
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Richard J Miron
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
| | - Xiangrong Cheng
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, People's Republic of China
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Engelmann D, Mayoli-Nüssle D, Mayrhofer C, Fürst K, Alla V, Stoll A, Spitschak A, Abshagen K, Vollmar B, Ran S, Pützer BM. E2F1 promotes angiogenesis through the VEGF-C/VEGFR-3 axis in a feedback loop for cooperative induction of PDGF-B. J Mol Cell Biol 2013; 5:391-403. [PMID: 24014887 DOI: 10.1093/jmcb/mjt035] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Angiogenesis is essential for primary tumor growth and metastatic dissemination. E2F1, frequently upregulated in advanced cancers, was recently shown to drive malignant progression. In an attempt to decipher the molecular events underlying this behavior, we demonstrate that the tumor cell-associated vascular endothelial growth factor-C/receptor-3 (VEGF-C/VEGFR-3) axis is controlled by E2F1. Activation or forced expression of E2F1 in cancer cells leads to the upregulation of VEGFR-3 and its ligand VEGF-C, whereas E2F1 depletion prevents their expression. E2F1-dependent receptor induction is crucial for tumor cells to enhance formation of capillary tubes and neovascularization in mice. We further provide evidence for a positive feedback loop between E2F1 and VEGFR-3 signaling to stimulate pro-angiogenic platelet-derived growth factor B (PDGF-B). E2F1 or VEGFR-3 knockdown results in reduced PDGF-B levels, while the coexpression synergistically upregulates promoter activity and endogenous protein expression of PDGF-B. Our findings delineate an as yet unrecognized function of E2F1 as enhancer of angiogenesis via regulation of VEGF-C/VEGFR-3 signaling in tumors to cooperatively activate PDGF-B expression. Targeting this pathway might be reasonable to complement standard anti-angiogenic treatment of cancers with deregulated E2F1.
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Affiliation(s)
- David Engelmann
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, 18057 Rostock, Germany
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Ahn SY, Pi LQ, Hwang ST, Lee WS. Effect of IGF-I on Hair Growth Is Related to the Anti-Apoptotic Effect of IGF-I and Up-Regulation of PDGF-A and PDGF-B. Ann Dermatol 2012; 24:26-31. [PMID: 22363152 PMCID: PMC3283847 DOI: 10.5021/ad.2012.24.1.26] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [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: 07/15/2010] [Revised: 04/03/2011] [Accepted: 06/29/2011] [Indexed: 11/26/2022] Open
Abstract
Background Insulin-like growth factor-I (IGF-I) shares a high degree of structural and functional homology with insulin and is a potent mitogen supporting cell growth and survival in many kinds of the tissues and cells. It also plays a role in some differentiation and anti-apoptotic functions. In previous reports, it has been shown that IGF-I stimulates hair follicle (HF) growth, maintains the anagen stage, and postpones the catagen stage. Objective The exact mechanism of the effect of IGF-I on HF growth is not yet established. Therefore, we investigated the relationships between IGF-I and various other factors (i.e. apoptosis related molecules, pro-inflammatory cytokines, other growth factors, etc.) in the control of HF growth. Methods The effect of IGF-I on human hair growth was measured using an organ culture model of human HFs and compared with a control group that did not receive IGF-I. We also measured mRNA expression of factors related to hair growth and apoptosis (which was determined by reverse transcription polymerase chain reaction (RT-PCR). RT-PCR was done on days 2, 4, 6, and 8 of organ culture. Results In organ cultured human hair follicles, IGF-I had a positive effect on the rate of linear hair growth. IGF-I maintained the anagen phase. IGF-I increased the expression of platelet-derived growth factor (PDGF)-A, PDGF-B and the expression ratio of Bcl-2/Bax. Conclusion The effect of IGF-I on hair growth appears to be related to the upregulation of PDGF-A and PDGF-B and to the anti-apoptotic effect of IGF-I.
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Affiliation(s)
- Seok-Yong Ahn
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
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