101
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Qu Y, Zhang N. miR-365b-3p inhibits the cell proliferation and migration of human coronary artery smooth muscle cells by directly targeting ADAMTS1 in coronary atherosclerosis. Exp Ther Med 2018; 16:4239-4245. [PMID: 30402161 DOI: 10.3892/etm.2018.6720] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/02/2018] [Indexed: 12/11/2022] Open
Abstract
Abnormal proliferation and migration of vascular smooth muscle cells serves a crucial role in the development of atherosclerosis. Previous studies have suggested that some microRNAs (miRs) are involved in this process; however, the associated underlying molecular mechanism is unclear. In present study, human coronary artery smooth muscle cells (HCASMCs) were used to explore the function of miR-365b-3p in the coronary atherosclerosis. It was indicated that platelet-derived growth factor-BB (PDGF-BB) treatment inhibited miR-365b-3p expression and upregulated the expression of a disintegrin and metalloproteinase with thrombospondin motifs 1 (ADAMTS1) in HCASMCs. Subsequently, miR-365b-3p mimic was transfected in HCASMCs to explore the function of this miR. The results of reverse transcription-quantitative polymerase chain reaction and western blot analysis indicated that overexpression of miR-365b-3p significantly downregulated ADAMTS1 expression. Functional assay results revealed that overexpression of miR-365b-3p significantly attenuated PDGF-BB-induced proliferation and migration of HCASMCs. Furthermore, the dual-luciferase reporter assay results confirmed that ADAMTS1 is a direct target gene of miR-365b-3p. This discovery proposed a novel channel of communication between ADAMTS1 and HCASMCs, and suggests a potential therapeutic approach for coronary atherosclerosis.
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Affiliation(s)
- Yunfei Qu
- Department of Cardiac Vascular Surgery, Chongqing Three Gorges Central Hospital, Chongqing 404000, P.R. China
| | - Ning Zhang
- Department of General Medicine, Chongqing Three Gorges Central Hospital, Chongqing 404000, P.R. China
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102
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Burgos CM, Davey MG, Riley JS, Jia H, Flake AW, Peranteau WH. Lung function and pulmonary artery blood flow following prenatal maternal retinoic acid and imatinib in the nitrofen model of congenital diaphragmatic hernia. J Pediatr Surg 2018; 53:1681-1687. [PMID: 29409619 DOI: 10.1016/j.jpedsurg.2017.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/08/2017] [Accepted: 12/03/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND Lung and pulmonary vascular maldevelopment in congenital diaphragmatic hernia (CDH) results in significant morbidity and mortality. Retinoic acid (RA) and imatinib have been shown to improve pulmonary morphology following prenatal administration in the rat nitrofen-induced CDH model. It remains unclear if these changes translate into improved function. We evaluated the effect of prenatal RA and imatinib on postnatal lung function, structure, and pulmonary artery (PA) blood flow in the rat CDH model. METHODS Olive oil or nitrofen was administered alone or in combination with RA or imatinib to pregnant rats. Pups were assessed for PA blood flow by ultrasound and pulmonary function/morphology following delivery, intubation, and short-term ventilation. RESULTS Neither RA nor imatinib had a negative effect on lung and body growth. RA accelerated lung maturation indicated by increased alveoli number and thinner interalveolar septa and was associated with decreased PA resistance and improved oxygenation. With the exception of a decreased PA pulsatility index, no significant changes in morphology and pulmonary function were noted following imatinib. CONCLUSION Prenatal treatment with RA but not imatinib was associated with improved pulmonary morphology and function, and decreased pulmonary vascular resistance. This study highlights the potential of prenatal pharmacologic therapies, such as RA, for management of CDH.
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Affiliation(s)
- Carmen Mesas Burgos
- The Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia; Karolinska Institutet, Stockholm, Sweden
| | - Marcus G Davey
- The Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia
| | - John S Riley
- The Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia
| | - Huimin Jia
- The Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia
| | - Alan W Flake
- The Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia
| | - William H Peranteau
- The Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia.
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103
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Wu JH, Li Y, Zhou YF, Haslam J, Elvis ON, Mao L, Xia YP, Hu B. Semaphorin-3E attenuates neointimal formation via suppressing VSMCs migration and proliferation. Cardiovasc Res 2018; 113:1763-1775. [PMID: 29016743 DOI: 10.1093/cvr/cvx190] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 09/14/2017] [Indexed: 02/06/2023] Open
Abstract
Aims The migration and proliferation of vascular smooth muscle cells (VSMCs) are crucial events in the neointimal formation, a hallmark of atherosclerosis and restenosis. Semaphorin3E (Sema3E) has been found to be a critical regulator of cell migration and proliferation in many scenarios. However, its role on VSMCs migration and proliferation is unclear. This study aimed to investigate the effect of Sema3E on VSMCs migration, proliferation and neointimal formation, and explore possible mechanisms. Methods and results We found that the expression of Sema3E was progressively decreased during neointimal formation in a carotid ligation model. H&E-staining showed lentivirus-mediated overexpression of Sema3E in carotid ligation area attenuated neointimal formation. Immunofluorescence staining showed that the receptor (PlexinD1) of Sema3E was expressed in vascular walls. In cultured mouse VSMCs, Sema3E inhibited VSMCs migration and proliferation via plexinD1 receptor. The inhibitory effect was mediated, at least in part, by inactivating Rap1-AKT signalling pathways in VSMCs. Moreover, we found that PDGFBB down-regulated the expression of Sema3E in VSMCs and Sema3E notably inhibited the expression of PDGFB in endothelial cells. In addition, the number of Sema3E-positive VSMCs was diminished in plaques of atherosclerotic patients. Results from a public GEO microarray database showed a negative correlation between Sema3E and PDGFB transcriptional levels in the human plaques examined. Conclusion Our study demonstrates that Sema3E/plexinD1 inhibits proliferation and migration of VSMCs via inactivation of Rap1-AKT signalling pathways. The mutual inhibition between PDGF-BB and Sema3E after vascular injury plays a critical role in the process of neointimal formation.
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Affiliation(s)
- Jie-Hong Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanan Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yi-Fan Zhou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - James Haslam
- Swansea College of Medicine, Swansea University, Singleton Park, Swansea, Wales SA2 8PP, UK
| | - Opoku Nana Elvis
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ling Mao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuan-Peng Xia
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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104
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Papadopoulos N, Lennartsson J. The PDGF/PDGFR pathway as a drug target. Mol Aspects Med 2018; 62:75-88. [DOI: 10.1016/j.mam.2017.11.007] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/10/2017] [Indexed: 02/07/2023]
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105
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Gocht A, Distler JH, Spriewald B, Ramsperger-Gleixner M, Weyand M, Ensminger SM, Heim C. Effects of different serotonin receptor subtype antagonists on the development of cardiac allograft vasculopathy in murine aortic allografts. Transpl Immunol 2018; 49:43-53. [DOI: 10.1016/j.trim.2018.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 01/19/2023]
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106
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Callahan R, Kieran MW, Baird CW, Colan SD, Gauvreau K, Ireland CM, Marshall AC, Sena LM, Vargas SO, Jenkins KJ. Adjunct Targeted Biologic Inhibition Agents to Treat Aggressive Multivessel Intraluminal Pediatric Pulmonary Vein Stenosis. J Pediatr 2018; 198:29-35.e5. [PMID: 29576325 DOI: 10.1016/j.jpeds.2018.01.029] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 12/28/2017] [Accepted: 01/10/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To evaluate the use of imatinib mesylate with or without bevacizumab targeting neoproliferative myofibroblast-like cells with tyrosine kinase receptor expression, as adjuncts to modern interventional therapies for the treatment of multivessel intraluminal pulmonary vein stenosis (PVS). We describe the 48- and 72-week outcomes among patients receiving imatinib mesylate with or without bevacizumab for multivessel intraluminal PVS. STUDY DESIGN This single-arm, prospective, open-label US Food and Drug Administration approved trial enrolled patients with ≥2 affected pulmonary veins after surgical or catheter-based relief of obstruction between March 2009 and December 2014. Drug therapy was discontinued at 48 weeks, or after 24 weeks of stabilization, whichever occurred later. RESULTS Among 48 enrolled patients, 5 had isolated PVS, 26 congenital heart disease, 5 lung disease, and 12 both. After the 72-week follow-up, 16 patients had stabilized, 27 had recurred locally without stabilization, and 5 had progressed. Stabilization was associated with the absence of lung disease (P = .03), a higher percentage of eligible drug doses received (P = .03), and was not associated with age, diagnosis, disease laterality, or number of veins involved. Survival to 72 weeks was 77% (37 of 48). Adverse events were common (n = 1489 total), but only 16 were definitely related to drug treatment, none of which were serious. CONCLUSION Survival to 72 weeks was 77% in a referral population with multivessel intraluminal PVS undergoing multimodal treatment, including antiproliferative tyrosine kinase blockade. Toxicity specific to tyrosine kinase blockade was minimal.
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Affiliation(s)
- Ryan Callahan
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston, MA.
| | - Mark W Kieran
- Division of Pediatric Medical Neuro-Oncology, Dana-Farber Cancer Institute, Boston Children's Hospital and Harvard Medical School, Boston, MA; Department of Hematology/Oncology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Christopher W Baird
- Department of Cardiac Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Steven D Colan
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Kimberlee Gauvreau
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Christina M Ireland
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Audrey C Marshall
- Department of Cardiology, Floating Hospital for Children at Tufts Medical Center, Boston, MA
| | - Laureen M Sena
- Department of Radiology, UMass Memorial Medical Center, Boston, MA
| | - Sara O Vargas
- Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - Kathy J Jenkins
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston, MA
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107
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Gocht A, Spriewald B, Distler JH, Ramsperger-Gleixner M, Ensminger SM, Weyand M, Heim C. Small Molecule Tyrosine Kinase Inhibitor Nintedanib Reduces Development of Cardiac Allograft Vasculopathy in Murine Aortic Allografts. Transplant Direct 2018; 4:e367. [PMID: 30046657 PMCID: PMC6056280 DOI: 10.1097/txd.0000000000000804] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Nintedanib is a small molecule tyrosine kinase inhibitor that blocks the action of the platelet-derived growth factor receptor (PDGFR), the vascular endothelial growth factor receptor (VEGFR) and the fibroblast growth factor receptor. All of these receptors have been shown to be involved in the development of cardiac allograft vasculopathy (CAV) after heart transplantation. We therefore hypothesized that blocking these tyrosine kinase receptors with nintedanib could prevent CAV. METHODS CBA/JRj (H2k) mice underwent an abdominal aortic transplantation with a graft derived from fully allogeneic C57BL/6JRj (H2b) mice. Nintedanib was given daily from the first day after transplantation until harvest on day 14 for polymerase chain reaction analysis of intragraft cytokine expression or harvest on day 30 for histological analysis of the graft. RESULTS Nintedanib treatment resulted in significantly reduced neointima formation in the aortic graft compared with untreated control allografts. Interestingly, the immigration of smooth muscle cells into the neointima was markedly reduced while graft infiltrating macrophages and T cells were not altered in nintedanib-treated animals. The expression of the growth factor PDGF was significantly reduced in the nintedanib group going along with a distinctly reduced expression of the corresponding receptors PDGFR α and -β. CONCLUSIONS Treatment with nintedanib caused a significant reduction of CAV development after aortic transplantation in mice. We hypothesize the attenuated neointima formation in nintedanib-treated animals to be mediated by a direct inhibition of intimal smooth muscle cell proliferation via reduced expression of PDGF and the appropriate receptors PDGFR α + β.
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Affiliation(s)
- Annika Gocht
- Department of Cardiac Surgery, University Hospital Erlangen, Erlangen, Germany
| | - Bernd Spriewald
- Department of Internal Medicine, University Hospital Erlangen, Erlangen, Germany
| | - Jörg H.W. Distler
- Department of Internal Medicine, University Hospital Erlangen, Erlangen, Germany
| | | | | | - Michael Weyand
- Department of Cardiac Surgery, University Hospital Erlangen, Erlangen, Germany
| | - Christian Heim
- Department of Cardiac Surgery, University Hospital Erlangen, Erlangen, Germany
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108
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Chen J, Cui X, Li L, Qu J, Raj JU, Gou D. MiR-339 inhibits proliferation of pulmonary artery smooth muscle cell by targeting FGF signaling. Physiol Rep 2018; 5:5/18/e13441. [PMID: 28947594 PMCID: PMC5617928 DOI: 10.14814/phy2.13441] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/08/2017] [Accepted: 08/14/2017] [Indexed: 12/02/2022] Open
Abstract
Pulmonary artery hypertension (PAH) is a fatal disorder. Recent studies suggest that microRNA (miRNA) plays an important role in regulating proliferation of pulmonary artery smooth muscle cells (PASMC), which underlies the pathology of PAH. However, the exact mechanism of action of miRNAs remains elusive. In this study, we found that miR‐339 was highly expressed in the cardiovascular system and was downregulated by a group of cytokines and growth factors, especially PDGF‐BB and FGF2. Functional analyses revealed that miR‐339 can inhibit proliferation of PASMC. Also, miR‐339 inhibited FGF2‐induced proliferation, but had no effect on proliferation induced by PDGF‐BB. The fibroblast growth factor receptor substrate 2 (FRS2) was identified as a potential direct target of miR‐339. Consistent with the actions of miR‐339, knockdown of FRS2 only inhibited FGF2‐ but not PDGF‐BB‐induced proliferation of PASMC. In addition, our results showed that inhibition of ERK and PI3K abrogated the downregulation of miR‐339 induced by PDGF‐BB. Finally, miR‐339 expression was found to be decreased in the pulmonary arteries of rats with MCT‐induced PAH. Our study is the first report on the biological role of miR‐339 in regulating proliferation of PASMC by targeting FGF signaling, providing new mechanistic insights into PASMC proliferation and pathogenesis of PAH.
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Affiliation(s)
- Jidong Chen
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, China.,Key Laboratory of Optoelectronic Devices, Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - Xiaolei Cui
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, China
| | - Li Li
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices, Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - J Usha Raj
- Department of Pediatrics, University of Illinois at Chicago, Chicago, Illinois
| | - Deming Gou
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen, Guangdong, China
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109
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Yuping Y, Hua C, Qing Z. Advances in the relationship between Kruppel-like factor 15 and cardiovascular disease research. Cardiovasc Endocrinol Metab 2018; 7:37-41. [PMID: 31646278 PMCID: PMC6739844 DOI: 10.1097/xce.0000000000000140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 11/10/2017] [Indexed: 11/26/2022]
Abstract
Kruppel-like factor 15 (KLF15) is a subtype of the Kruppel-like family of transcription factors (KLFs). KLFs have three high-fidelity zinc fingers at the carboxyl terminus that enable them to regulate the biological processes of proliferation, differentiation, cellular development, and apoptosis. KLF15 is highly expressed in the kidney, pancreas, and cardiac and skeletal muscle, and plays an essential role in the development and occurrence of multiple system diseases. In this paper, we underscored the important relationship between KLF15 and cardiovascular diseases such as atherosclerosis, heart failure, arrhythmia, aortic lesions, etc. On this basis, we identified KLF15 as a potential therapeutic target for the treatment of cardiovascular disease.
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Affiliation(s)
| | - Chen Hua
- Department of Emergency, the Second Affiliated Hospital of Guilin Medical University, Guilin, China
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110
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Braetz J, Becker A, Geissen M, Larena-Avellaneda A, Schrepfer S, Daum G. Sphingosine-1-phosphate receptor 1 regulates neointimal growth in a humanized model for restenosis. J Vasc Surg 2018; 68:201S-207S. [PMID: 29804740 DOI: 10.1016/j.jvs.2018.02.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/28/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The main objective of this study was to define a role of sphingosine-1-phosphate receptor 1 (S1PR1) in the arterial injury response of a human artery. The hypotheses were tested that injury induces an expansion of S1PR1-positive cells and that these cells accumulate toward the lumen because they follow the sphingosine-1-phosphate gradient from arterial wall tissue (low) to plasma (high). METHODS A humanized rat model was used in which denuded human internal mammary artery (IMA) was implanted into the position of the abdominal aorta of immunosuppressed Rowett nude rats. This injury model is characterized by medial as well as intimal hyperplasia, whereby intimal cells are of human origin. At 7, 14, and 28 days after implantation, grafts were harvested and processed for fluorescent immunostaining for S1PR1 and smooth muscle α-actin. Nuclei were stained with 4',6-diamidine-2'-phenylindole dihydrochloride. Using digitally reconstructed, complete cross sections of grafts, intimal and medial areas were measured, whereby the medial area had virtually been divided into an outer (toward adventitia) and inner (toward lumen) layer. The fraction of S1PR1-positive cells was determined in each layer by counting S1PR1-positive and S1PR1-negative cells. RESULTS The fraction of S1PR1-postive cells in naive IMA is 58.9% ± 6.0% (mean ± standard deviation). At day 28 after implantation, 81.6% ± 4.4% of medial cells were scored S1PR1 positive (P < .01). At day 14, the ratio between S1PR1-positive and S1PR1-negative cells was significantly higher in the lumen-oriented inner layer (9.3 ± 2.1 vs 6.0 ± 1.0; P < .01). Cells appearing in the intima at day 7 and day 14 were almost all S1PR1 positive. At day 28, however, about one-third of intimal cells were scored S1PR1 negative. CONCLUSIONS From these data, we conclude that denudation of IMA specifically induces the expansion of S1PR1-positive cells. Based on the nonrandom distribution of S1PR1-positive cells, we consider the possibility that much like lymphocytes, S1PR1-positive smooth muscle cells also use S1PR1 to recognize the sphingosine-1-phosphate gradient from tissue (low) to plasma (high) and so migrate out of the media toward the intima of the injured IMA.
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Affiliation(s)
- Julian Braetz
- Clinic and Polyclinic for Vascular Medicine, University Heart Center Hamburg-Eppendorf, Hamburg, Germany; Clinic and Polyclinic for General and Interventional Cardiology, University Heart Center Hamburg-Eppendorf, Hamburg, Germany
| | - Astrid Becker
- Clinic and Polyclinic for Vascular Medicine, University Heart Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Geissen
- Clinic and Polyclinic for Vascular Medicine, University Heart Center Hamburg-Eppendorf, Hamburg, Germany
| | - Axel Larena-Avellaneda
- Clinic and Polyclinic for Vascular Medicine, University Heart Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sonja Schrepfer
- Clinic and Polyclinic for Cardiovascular Surgery, Transplant and Stem Cell Immunobiology Laboratory, University Heart Center Hamburg-Eppendorf, Hamburg, Germany
| | - Guenter Daum
- Clinic and Polyclinic for Vascular Medicine, University Heart Center Hamburg-Eppendorf, Hamburg, Germany.
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111
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Feng L, Dou C, Wang J, Jiang C, Ma X, Liu J. Upregulated 14‑3‑3β aggravates restenosis by promoting cell migration following vascular injury in diabetic rats with elevated levels of free fatty acids. Int J Mol Med 2018; 42:1074-1085. [PMID: 29749466 DOI: 10.3892/ijmm.2018.3671] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 05/09/2018] [Indexed: 11/05/2022] Open
Abstract
Mono‑unsaturated free fatty acids (FFAs) can serve as a predictive indicator of vascular restenosis following interventional therapy, particularly in individuals with high‑fat diet‑induced type 2 diabetes. However, the pathogenic mechanism remains to be fully elucidated. In the present study, the levels of tyrosine 3‑monooxygenase/tryptophan 5‑monooxygenase activation protein β (YWHAB; also known as 14‑3‑3β), in vascular smooth muscle cells (VSMCs) treated with different concentrations of oleic acid (OA) were examined by reverse transcription‑quantitative polymerase chain reaction and western blot analyses. The migration of VSMCs was examined using wound‑healing and Transwell migration assays. The protein distribution of B‑cell lymphoma 2 (BCL‑2)‑associated death promoter (BAD) in VSMCs treated with OA was examined by immunofluorescence and western blot analyses. In in vivo experiments, the carotid artery morphology of rats in different groups was assessed at 14 days post‑injury by non-invasive ultrasonographic imaging and confirmed by histological staining. The expression of YWHAB was upregulated by OA in a concentration‑dependent manner in VSMCs. In the in vivo experiments, carotid stenosis was more serious among high‑FFA diabetic rats. However, silencing of YWHAB significantly alleviated carotid neointimal hyperplasia among the diabetic rats with elevated FFA levels. In addition, YWHAB silencing alleviated the migration of OA‑treated VSMCs and increased translocation of the BAD protein from the cytoplasm to the mitochondria. In conclusion, the results showed that FFA‑induced upregulation of YWHAB was involved in neointimal hyperplasia by enhancing the migration of VSMCs following carotid artery injury. The inhibition of YWHAB may serve as a novel potential pharmacological target for preventing vascular restenosis following interventional therapy in diabetic individuals with high FFA levels.
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Affiliation(s)
- Lishuai Feng
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Chaoran Dou
- Department of Ultrasound in Medicine, Shanghai Institute of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Jianbo Wang
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Chunyu Jiang
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Xu Ma
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Jingjing Liu
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
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Dong X, Hu H, Fang Z, Cui J, Liu F. CTRP6 inhibits PDGF-BB-induced vascular smooth muscle cell proliferation and migration. Biomed Pharmacother 2018; 103:844-850. [PMID: 29710500 DOI: 10.1016/j.biopha.2018.04.112] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/09/2018] [Accepted: 04/16/2018] [Indexed: 10/17/2022] Open
Abstract
Vascular smooth muscle cell (VSMC) proliferation and migration play critical roles in the development and progression of atherosclerosis. C1q/tumor necrosis factor-related protein 6 (CTRP6), a member of CTRPs family, was involved in cardiovascular diseases, inflammatory reaction and adipogenesis. However, the role of CTRP6 in VSMCs remains largely unknown. The purpose of this study is to investigate the effects of CTRP6 on VSMC proliferation and migration and explore the possible mechanism. Our results indicated that CTRP6 expression was dramatically down-regulated in human atherosclerotic tissues and in cultured VSMCs stimulated by platelet-derived growth factor-BB (PDGF-BB). In addition, CTRP6 overexpression significantly inhibited the proliferation and migration of VSMCs exposed to PDGF-BB, as well as increased expression of α-SMA and SM22α in PDGF-BB-stimulated VSMCs. Furthermore, CTRP6 overexpression efficiently prevented the activation of PI3K/Akt/mTOR in VSMCs in response to PDGF-BB. In conclusion, these findings showed that CTRP6 inhibits PDGF-BB-induced VSMC proliferation and migration, at least in part, through suppressing the PI3K/Akt/mTOR signaling pathway. Therefore, CTRP6 may be a potential target for the treatment of atherosclerosis.
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Affiliation(s)
- Xunzhong Dong
- Department of Vascular Surgery, The Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China; Department of Vascular Surgery, The People's Hospital of Bozhou, Clinical College of Anhui Medical University, Bozhou, 236800, Anhui Province, China
| | - Hejie Hu
- Department of Vascular Surgery, The Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China.
| | - Zhengdong Fang
- Department of Vascular Surgery, The Affiliated Provincial Hospital of Anhui Medical University, Hefei, 230001, Anhui Province, China
| | - Jian Cui
- Department of Vascular Surgery, The People's Hospital of Bozhou, Clinical College of Anhui Medical University, Bozhou, 236800, Anhui Province, China
| | - Fangxin Liu
- Department of Ultrasound, The People's Hospital of Bozhou, Clinical College of Anhui Medical University, Bozhou, 236800, Anhui Province, China
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113
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Togliatto G, Dentelli P, Rosso A, Lombardo G, Gili M, Gallo S, Gai C, Solini A, Camussi G, Brizzi MF. PDGF-BB Carried by Endothelial Cell-Derived Extracellular Vesicles Reduces Vascular Smooth Muscle Cell Apoptosis in Diabetes. Diabetes 2018; 67:704-716. [PMID: 29386225 DOI: 10.2337/db17-0371] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 01/22/2018] [Indexed: 11/13/2022]
Abstract
Endothelial cell-derived extracellular vesicles (CD31EVs) constitute a new entity for therapeutic/prognostic purposes. The roles of CD31EVs as mediators of vascular smooth muscle cell (VSMC) dysfunction in type 2 diabetes (T2D) are investigated herein. We demonstrated that, unlike serum-derived extracellular vesicles in individuals without diabetes, those in individuals with diabetes (D CD31EVs) boosted apoptosis resistance of VSMCs cultured in hyperglycemic condition. Biochemical analysis revealed that this effect relies on changes in the balance between antiapoptotic and proapoptotic signals: increase of bcl-2 and decrease of bak/bax. D CD31EV cargo analysis demonstrated that D CD31EVs are enriched in membrane-bound platelet-derived growth factor-BB (mbPDGF-BB). Thus, we postulated that mbPDGF-BB transfer by D CD31EVs could account for VSMC resistance to apoptosis. By depleting CD31EVs of platelet-derived growth factor-BB (PDGF-BB) or blocking the PDGF receptor β on VSMCs, we demonstrated that mbPDGF-BB contributes to D CD31EV-mediated bak/bax and bcl-2 levels. Moreover, we found that bak expression is under the control of PDGF-BB-mediated microRNA (miR)-296-5p expression. In fact, while PDGF-BB treatment recapitulated D CD31EV-mediated antiapoptotic program and VSMC resistance to apoptosis, PDGF-BB-depleted CD31EVs failed. D CD31EVs also increased VSMC migration and recruitment to neovessels by means of PDGF-BB. Finally, we found that VSMCs, from human atherosclerotic arteries of individuals with T2D, express low bak/bax and high bcl-2 and miR-296-5p levels. This study identifies the mbPDGF-BB in D CD31EVs as a relevant mediator of diabetes-associated VSMC resistance to apoptosis.
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Affiliation(s)
| | | | - Arturo Rosso
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Giusy Lombardo
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Maddalena Gili
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Sara Gallo
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Chiara Gai
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Anna Solini
- Department of Surgical, Medical, Molecular, and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Giovanni Camussi
- Department of Medical Sciences, University of Torino, Torino, Italy
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114
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Folestad E, Kunath A, Wågsäter D. PDGF-C and PDGF-D signaling in vascular diseases and animal models. Mol Aspects Med 2018; 62:1-11. [PMID: 29410092 DOI: 10.1016/j.mam.2018.01.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/14/2017] [Accepted: 01/22/2018] [Indexed: 01/06/2023]
Abstract
Members of the platelet-derived growth factor (PDGF) family are well known to be involved in different pathological conditions. The cellular and molecular mechanisms induced by the PDGF signaling have been well studied. Nevertheless, there is much more to discover about their functions and some important questions to be answered. This review summarizes the known roles of two of the PDGFs, PDGF-C and PDGF-D, in vascular diseases. There are clear implications for these growth factors in several vascular diseases, such as atherosclerosis and stroke. The PDGF receptors are broadly expressed in the cardiovascular system in cells such as fibroblasts, smooth muscle cells and pericytes. Altered expression of the receptors and the ligands have been found in various cardiovascular diseases and current studies have shown important implications of PDGF-C and PDGF-D signaling in fibrosis, neovascularization, atherosclerosis and restenosis.
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Affiliation(s)
- Erika Folestad
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Anne Kunath
- Division of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Dick Wågsäter
- Division of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
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115
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Guo X, Kashihara T, Nakada T, Aoyama T, Yamada M. PDGF-induced migration of synthetic vascular smooth muscle cells through c-Src-activated L-type Ca 2+ channels with full-length Ca V1.2 C-terminus. Pflugers Arch 2018; 470:909-921. [PMID: 29441404 DOI: 10.1007/s00424-018-2114-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/06/2018] [Accepted: 01/19/2018] [Indexed: 01/22/2023]
Abstract
In atherosclerosis, vascular smooth muscle cells (VSMC) migrate from the media toward the intima of the arteries in response to cytokines, such as platelet-derived growth factor (PDGF). However, molecular mechanism underlying the PDGF-induced migration of VSMCs remains unclear. The migration of rat aorta-derived synthetic VSMCs, A7r5, in response to PDGF was potently inhibited by a CaV1.2 channel inhibitor, nifedipine, and a Src family tyrosine kinase (SFK)/Abl inhibitor, bosutinib, in a less-than-additive manner. PDGF significantly increased CaV1.2 channel currents without altering CaV1.2 protein expression levels in A7r5 cells. This reaction was inhibited by C-terminal Src kinase, a selective inhibitor of SFKs. In contractile VSMCs, the C-terminus of CaV1.2 is proteolytically cleaved into proximal and distal C-termini (PCT and DCT, respectively). Clipped DCT is noncovalently reassociated with PCT to autoinhibit the channel activity. Conversely, in synthetic A7r5 cells, full-length CaV1.2 (CaV1.2FL) is expressed much more abundantly than truncated CaV1.2. In a heterologous expression system, c-Src activated CaV1.2 channels composed of CaV1.2FL but not truncated CaV1.2 (CaV1.2Δ1763) or CaV1.2Δ1763 plus clipped DCT. Further, c-Src enhanced the coupling efficiency between the voltage-sensing domain and activation gate of CaV1.2FL channels by phosphorylating Tyr1709 and Tyr1758 in PCT. Compared with CaV1.2Δ1763, c-Src could more efficiently bind to and phosphorylate CaV1.2FL irrespective of the presence or absence of clipped DCT. Therefore, in atherosclerotic lesions, phenotypic switching of VSMCs may facilitate pro-migratory effects of PDGF on VSMCs by suppressing posttranslational CaV1.2 modifications.
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Affiliation(s)
- Xiaoguang Guo
- Department of Molecular Pharmacology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.,Department of Metabolic Regulation, Institute on Aging and Adaptation, Shinshu University Graduate School of Medicine, Matsumoto, Nagano, Japan
| | - Toshihide Kashihara
- Department of Molecular Pharmacology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Tsutomu Nakada
- Department of Molecular Pharmacology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Toshifumi Aoyama
- Department of Metabolic Regulation, Institute on Aging and Adaptation, Shinshu University Graduate School of Medicine, Matsumoto, Nagano, Japan
| | - Mitsuhiko Yamada
- Department of Molecular Pharmacology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.
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116
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Chen J, Guo J, Cui X, Dai Y, Tang Z, Qu J, Raj JU, Hu Q, Gou D. The Long Noncoding RNA LnRPT Is Regulated by PDGF-BB and Modulates the Proliferation of Pulmonary Artery Smooth Muscle Cells. Am J Respir Cell Mol Biol 2018; 58:181-193. [DOI: 10.1165/rcmb.2017-0111oc] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Jidong Chen
- Shenzhen Key Laboratory of Microbial Genetic Engineering
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences, and
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Jiao Guo
- Shenzhen Key Laboratory of Microbial Genetic Engineering
| | - Xiaolei Cui
- Shenzhen Key Laboratory of Microbial Genetic Engineering
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences, and
| | - Yan Dai
- Key Laboratory of Systems Biology, Chinese Academy of Science, Shanghai Institute for Biological Sciences, Shanghai, China
| | - Zhixiong Tang
- Shenzhen Key Laboratory of Microbial Genetic Engineering
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences, and
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - J. Usha Raj
- Department of Pediatrics, University of Illinois at Chicago, Chicago, Illinois; and
| | - Qinghua Hu
- Department of Pathophysiology and
- Key Laboratory of Pulmonary Diseases of Ministry of Health, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences, and
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117
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Zhang L, Shao J, Zhou Y, Chen H, Qi H, Wang Y, Chen L, Zhu Y, Zhang M, Chen L, Du Y, Zhong M, Shi X, Li Q. Inhibition of PDGF-BB-induced proliferation and migration in VSMCs by proanthocyanidin A2: Involvement of KDR and Jak-2/STAT-3/cPLA 2 signaling pathways. Biomed Pharmacother 2018; 98:847-855. [PMID: 29571255 DOI: 10.1016/j.biopha.2018.01.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/29/2017] [Accepted: 01/03/2018] [Indexed: 12/21/2022] Open
Abstract
Proanthocyanidin A2 (PA2), one of A-type proanthocyanidins, has been shown to harbor a broad spectrum of pharmacological activities, including anti-inflammatory, antioxidant, anti-HIV, anti-CDV and anti-?-glucosidase activities. However, little is known about the role for PA2 in regulating PDGF-induced VSMC proliferation and migration. In the present study, we investigated the possible effects of PA2 on PDGF-BB-induced proliferation, migration and inflammation in VSMCs in vitro to mimic a postangioplasty PDGF shedding condition. Herein, the data clearly show that PA2 markedly inhibited proliferation, migration and inflammatory responses at 0-30??g/ml concentration in VSMCs in vitro. 10-30??g/ml PA2 inhibited PDGF-mediated NAD(P)H oxidase activation and intracellular ROS formation in VSMCs. Furthermore, the effects exerted by PA2 involve the participation of KDR and Jak-2/STAT-3/cPLA2 signaling pathways. These data also highlight the possible therapeutic use of PA2 in vascular proliferative diseases, where abnormal proliferation and migration play important pathological roles.
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Affiliation(s)
- Liudi Zhang
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Jie Shao
- Department of General Surgery, Huashan Hospital North, Shanghai 201907, China
| | - Yufu Zhou
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Haifei Chen
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Huijie Qi
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Yi Wang
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Lu Chen
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Yongjun Zhu
- Department of Cardio-thoracic surgery, Huashan Hospital, Shanghai 200040, China.
| | - Meng Zhang
- Brunswick Laboratories (China), Suzhou Industrial Park 215021, China
| | - Li Chen
- Pharmacy Department, Xuhui district Central Hospital, 966 Huai Hai M Road, Shanghai 200031, China
| | - Yongli Du
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, China
| | - Mingkang Zhong
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Xiaojin Shi
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China
| | - Qunyi Li
- Department of Pharmacy, Huashan Hospital North, Shanghai 201907, China.
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118
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Heldin CH, Lennartsson J, Westermark B. Involvement of platelet-derived growth factor ligands and receptors in tumorigenesis. J Intern Med 2018; 283:16-44. [PMID: 28940884 DOI: 10.1111/joim.12690] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Platelet-derived growth factor (PDGF) isoforms and their receptors have important roles during embryogenesis, particularly in the development of various mesenchymal cell types in different organs. In the adult, PDGF stimulates wound healing and regulates tissue homeostasis. However, overactivity of PDGF signalling is associated with malignancies and other diseases characterized by excessive cell proliferation, such as fibrotic conditions and atherosclerosis. In certain tumours, genetic or epigenetic alterations of the genes for PDGF ligands and receptors drive tumour cell proliferation and survival. Examples include the rare skin tumour dermatofibrosarcoma protuberance, which is driven by autocrine PDGF stimulation due to translocation of a PDGF gene, and certain gastrointestinal stromal tumours and leukaemias, which are driven by constitute activation of PDGF receptors due to point mutations and formation of fusion proteins of the receptors, respectively. Moreover, PDGF stimulates cells in tumour stroma and promotes angiogenesis as well as the development of cancer-associated fibroblasts, both of which promote tumour progression. Inhibitors of PDGF signalling may thus be of clinical usefulness in the treatment of certain tumours.
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Affiliation(s)
- C-H Heldin
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - J Lennartsson
- Ludwig Institute for Cancer Research, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - B Westermark
- Department of Genetics and Pathology, Uppsala University, Uppsala, Sweden
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119
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Kim HS, Kim SK, Kang KW. Differential Effects of sEH Inhibitors on the Proliferation and Migration of Vascular Smooth Muscle Cells. Int J Mol Sci 2017; 18:ijms18122683. [PMID: 29232926 PMCID: PMC5751285 DOI: 10.3390/ijms18122683] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 11/30/2017] [Accepted: 12/08/2017] [Indexed: 02/07/2023] Open
Abstract
Epoxyeicosatrienoic acid (EET) is a cardioprotective metabolite of arachidonic acid. It is known that soluble epoxide hydrolase (sEH) is involved in the metabolic degradation of EET. The abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) play important roles in the pathogenesis of atherosclerosis and restenosis. Thus, the present study investigated the effects of the sEH inhibitor 12-(((tricyclo(3.3.1.13,7)dec-1-ylamino)carbonyl)amino)-dodecanoic acid (AUDA) on platelet-derived growth factor (PDGF)-induced proliferation and migration in rat VSMCs. AUDA significantly inhibited PDGF-induced rat VSMC proliferation, which coincided with Pin1 suppression and heme oxygenase-1 (HO-1) upregulation. However, exogenous 8,9-EET, 11,12-EET, and 14,15-EET treatments did not alter Pin1 or HO-1 levels and had little effect on the proliferation of rat VSMCs. On the other hand, AUDA enhanced the PDGF-stimulated cell migration of rat VSMCs. Furthermore, AUDA-induced activation of cyclooxygenase-2 (COX-2) and subsequent thromboxane A2 (TXA2) production were required for the enhanced migration. Additionally, EETs increased COX-2 expression but inhibited the migration of rat VSMCs. In conclusion, the present study showed that AUDA exerted differential effects on the proliferation and migration of PDGF-stimulated rat VSMCs and that these results may not depend on EET stabilization.
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MESH Headings
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Enzyme Inhibitors/pharmacology
- Epoxide Hydrolases/antagonists & inhibitors
- Epoxy Compounds/metabolism
- Gene Expression Regulation/drug effects
- Heme Oxygenase-1/metabolism
- Lauric Acids/pharmacology
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Rats
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Affiliation(s)
- Hyo Seon Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea.
| | - Sang Kyum Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea.
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea.
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120
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Abstract
Fibrosis is part of a tissue repair response to injury, defined as increased deposition of extracellular matrix. In some instances, fibrosis is beneficial; however, in the majority of diseases fibrosis is detrimental. Virtually all chronic progressive diseases are associated with fibrosis, representing a huge number of patients worldwide. Fibrosis occurs in all organs and tissues, becomes irreversible with time and further drives loss of tissue function. Various cells types initiate and perpetuate pathological fibrosis by paracrine activation of the principal cellular executors of fibrosis, i.e. stromal mesenchymal cells like fibroblasts, pericytes and myofibroblasts. Multiple pathways are involved in fibrosis, platelet-derived growth factor (PDGF)-signaling being one of the central mediators. Stromal mesenchymal cells express both PDGF receptors (PDGFR) α and β, activation of which drives proliferation, migration and production of extracellular matrix, i.e. the principal processes of fibrosis. Here, we review the role of PDGF signaling in organ fibrosis, with particular focus on the more recently described ligands PDGF-C and -D. We discuss the potential challenges, opportunities and open questions in using PDGF as a potential target for anti-fibrotic therapies.
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Affiliation(s)
| | - Jürgen Floege
- Division of Nephrology, RWTH University of Aachen, Germany
| | - Peter Boor
- Institute of Pathology, RWTH University of Aachen, Germany; Division of Nephrology, RWTH University of Aachen, Germany.
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121
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Paeoniflorin inhibits VSMCs proliferation and migration by arresting cell cycle and activating HO-1 through MAPKs and NF-κB pathway. Int Immunopharmacol 2017; 54:103-111. [PMID: 29121532 DOI: 10.1016/j.intimp.2017.10.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/13/2017] [Accepted: 10/16/2017] [Indexed: 11/22/2022]
Abstract
The proliferation, migration and inflammation of vascular smooth muscle cells (VSMCs) contributes to the pathogenesis and progression of atherosclerosis. Paeoniflorin (PF) as active compound in the Rhizoma Atractylodes macrocephala has been used for various diseases like cancer, splenic asthenia, anaphylaxis and anorexia. This study aimed to explore whether and how PF regulated the inflammation, proliferation and migration of VSMCs under ox-LDL stimulation. Here, we found that PF dose-dependently inhibited ox-LDL-induced VSMCs proliferation and migration, and decreased inflammatory cytokines and chemokine overexpression. Mechanistically, PF prevented p38, ERK1/2 and NF-κB phosphorylation, and arrested cell cycle in S phase. Meanwhile, PF regulated the HO-1 and PCNA expression. Furthermore, PF blocked the foam cell formation in macrophages induced by ox-LDL. These results indicate that PF antagonizes the ox-LDL-induced VSMCs proliferation, migration and inflammation through activation of HO-1, cell cycle arrest and then suppression of p38, ERK1/2/MAPK and NF-κB signaling pathways.
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122
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Platelet-derived growth factor-C and -D in the cardiovascular system and diseases. Mol Aspects Med 2017; 62:12-21. [PMID: 28965749 DOI: 10.1016/j.mam.2017.09.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 09/26/2017] [Indexed: 12/31/2022]
Abstract
The cardiovascular system is among the first organs formed during development and is pivotal for the formation and function of the rest of the organs and tissues. Therefore, the function and homeostasis of the cardiovascular system are finely regulated by many important molecules. Extensive studies have shown that platelet-derived growth factors (PDGFs) and their receptors are critical regulators of the cardiovascular system. Even though PDGF-C and PDGF-D are relatively new members of the PDGF family, their critical roles in the cardiovascular system as angiogenic and survival factors have been amply demonstrated. Understanding the functions of PDGF-C and PDGF-D and the signaling pathways involved may provide novel insights into both basic biomedical research and new therapeutic possibilities for the treatment of cardiovascular diseases.
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123
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Murtha LA, Schuliga MJ, Mabotuwana NS, Hardy SA, Waters DW, Burgess JK, Knight DA, Boyle AJ. The Processes and Mechanisms of Cardiac and Pulmonary Fibrosis. Front Physiol 2017; 8:777. [PMID: 29075197 PMCID: PMC5643461 DOI: 10.3389/fphys.2017.00777] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/22/2017] [Indexed: 02/06/2023] Open
Abstract
Fibrosis is the formation of fibrous connective tissue in response to injury. It is characterized by the accumulation of extracellular matrix components, particularly collagen, at the site of injury. Fibrosis is an adaptive response that is a vital component of wound healing and tissue repair. However, its continued activation is highly detrimental and a common final pathway of numerous disease states including cardiovascular and respiratory disease. Worldwide, fibrotic diseases cause over 800,000 deaths per year, accounting for ~45% of total deaths. With an aging population, the incidence of fibrotic disease and subsequently the number of fibrosis-related deaths will rise further. Although, fibrosis is a well-recognized cause of morbidity and mortality in a range of disease states, there are currently no viable therapies to reverse the effects of chronic fibrosis. Numerous predisposing factors contribute to the development of fibrosis. Biological aging in particular, interferes with repair of damaged tissue, accelerating the transition to pathological remodeling, rather than a process of resolution and regeneration. When fibrosis progresses in an uncontrolled manner, it results in the irreversible stiffening of the affected tissue, which can lead to organ malfunction and death. Further investigation into the mechanisms of fibrosis is necessary to elucidate novel, much needed, therapeutic targets. Fibrosis of the heart and lung make up a significant proportion of fibrosis-related deaths. It has long been established that the heart and lung are functionally and geographically linked when it comes to health and disease, and thus exploring the processes and mechanisms that contribute to fibrosis of each organ, the focus of this review, may help to highlight potential avenues of therapeutic investigation.
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Affiliation(s)
- Lucy A Murtha
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Michael J Schuliga
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Nishani S Mabotuwana
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Sean A Hardy
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - David W Waters
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Janette K Burgess
- Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, W. J. Kolff Research Institute, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.,Respiratory Cellular and Molecular Biology Group, Woolcock Institute of Medical Research, Glebe, NSW, Australia.,Discipline of Pharmacology, University of Sydney, Sydney, NSW, Australia
| | - Darryl A Knight
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia.,School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia.,Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, BS, Canada.,Department of Medicine, University of Western Australia, Perth, WA, Australia.,Research and Innovation Conjoint, Hunter New England Health, Newcastle, NSW, Australia
| | - Andrew J Boyle
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
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124
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Rezayani S, Farazmandfar T, shahbazi M. Association assessment of platelet derived growth factor B gene polymorphism and its expression status with susceptibility to coronary artery disease. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2017. [DOI: 10.1016/j.ejmhg.2017.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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125
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Small molecule-mediated induction of miR-9 suppressed vascular smooth muscle cell proliferation and neointima formation after balloon injury. Oncotarget 2017; 8:93360-93372. [PMID: 29212155 PMCID: PMC5706801 DOI: 10.18632/oncotarget.21382] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 09/04/2017] [Indexed: 01/04/2023] Open
Abstract
Pathologic proliferation and migration of vascular smooth muscle cells (VSMCs) exacerbate cardiovascular disease. MicroRNAs (miRNAs), as endogenous inhibitors of protein synthesis, are expected to modulate pathologic proliferation of VSMCs. Here we report that both platelet-derived growth factor receptor (PDGFR) targeting miR-9 and a small molecule that increases miR-9 can inhibit the serum-induced proliferation of VSMCs. First, based on miRNA-target prediction databases and empirical data, we have selected miR-9 as a potent anti-proliferative miRNA in VSMCs. Further examination indicated that miR-9 directly targets PDGFR disrupting downstream signaling cascades, and this resulted in inhibition of VSMC proliferation and migration. Exogenous delivery of miR-9 inhibited VSMC proliferation in vitro, and a small molecule that increased miR-9 expression also inhibited neointima formation following balloon injury in vivo. We provide evidence of miRNA-mediated modulation of VSMC proliferation and further demonstrate that small molecule-mediated regulation of miRNA targeting a key regulator of VSMC proliferation is a viable therapeutic strategy for treating vascular disease involving pathologic VSMC proliferation such as restenosis.
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126
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Song IS, Jeong YJ, Park JH, Shim S, Jang SW. Chebulinic acid inhibits smooth muscle cell migration by suppressing PDGF-Rβ phosphorylation and inhibiting matrix metalloproteinase-2 expression. Sci Rep 2017; 7:11797. [PMID: 28924208 PMCID: PMC5603554 DOI: 10.1038/s41598-017-12221-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 09/06/2017] [Indexed: 01/10/2023] Open
Abstract
Excessive migration of vascular smooth muscle cells (VSMCs) after vascular injury contributes to the development of occlusive vascular disease. Inhibition of VSMC migration is a validated therapeutic modality for occlusive vascular diseases, such as atherosclerosis and restenosis. We investigated the inhibitory effect of chebulinic acid (CBA) on cell migration and matrix metalloproteinase (MMP)-2 activation in platelet-derived growth factor (PDGF)-BB-induced mouse and human VSMCs. CBA significantly inhibited PDGF-BB-induced migration in mouse and human VSMCs, without inducing cell death. Additionally, CBA significantly blocked PDGF-BB-induced phosphorylation of the PDGF receptor (PDGF-R), Akt, and extracellular signal-regulated kinase (ERK)1/2 by inhibiting the activation of the PDGF-BB signalling pathway. In both mouse and human VSMCs, CBA inhibited PDGF-induced MMP-2 mRNA and protein expression as well as the proteolytic activity of MMP-2. Moreover, CBA suppressed sprout outgrowth formation of VSMCs from endothelium-removed aortic rings as well as neointima formation following rat carotid balloon injury. Taken together, our findings indicated that CBA inhibits VSMC migration by decreasing MMP-2 expression through PDGF-R and the ERK1/2 and Akt pathways. Our data may improve the understanding of the antiatherogenic effects of CBA in VSMCs.
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Affiliation(s)
- In-Sung Song
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, 138-736, Korea.,Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 138-736, Korea
| | - Yu Jeong Jeong
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, 138-736, Korea.,Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 138-736, Korea
| | - Jung-Hyun Park
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, 138-736, Korea.,Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 138-736, Korea
| | - Sungbo Shim
- Department of Biochemistry, Neuromarker Resource Bank, College of Natural Sciences, Chungbuk National University, Cheongju, Republic of Korea.
| | - Sung-Wuk Jang
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, 138-736, Korea. .,Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 138-736, Korea.
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127
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Battig MR, Fishbein I, Levy RJ, Alferiev IS, Guerrero D, Chorny M. Optimizing endothelial cell functionalization for cell therapy of vascular proliferative disease using a direct contact co-culture system. Drug Deliv Transl Res 2017; 8:954-963. [PMID: 28755158 DOI: 10.1007/s13346-017-0412-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Increased susceptibility to thrombosis, neoatherosclerosis, and restenosis due to incomplete regrowth of the protective endothelial layer remains a critical limitation of the interventional strategies currently used clinically to relieve atherosclerotic obstruction. Rapid recovery of endothelium holds promise for both preventing the thrombotic events and reducing post-angioplasty restenosis, providing the rationale for developing cell delivery strategies for accelerating arterial reendothelialization. The successful translation of experimental cell therapies into clinically viable treatment modalities for restoring vascular endothelium critically depends on identifying strategies for enhancing the functionality of endothelial cells (EC) derived from high cardiovascular risk patients, the target group for the majority of angioplasty procedures. Enhancing EC-associated nitric oxide (NO) synthesis by inducing overexpression of NO synthase (NOS) has shown promise as a way of increasing paracrine activity and restoring function of EC. In the present study, we developed a direct contact co-culture approach compatible with highly labile effectors, such as NO, and applied it for determining the effect of EC functionalization via NOS gene transfer on the growth of co-cultured arterial smooth muscle cells (A10 cell line) exhibiting the defining characteristics of neointimal cells. Bovine aortic endothelial cells magnetically transduced with inducible NOS-encoding adenovirus (Ad) formulated in zinc oleate-based magnetic nanoparticles (MNP[iNOSAd]) strongly suppressed growth of proliferating A10 and attenuated the stimulatory effect of a potent mitogen, platelet-derived growth factor (PDGF-BB), whereas EC functionalization with free iNOSAd or MNP formulated with a different isoform of the enzyme, endothelial NOS, was associated with lower levels of NO synthesis and less pronounced antiproliferative activity toward co-cultured A10 cells. These results show feasibility of applying magnetically facilitated gene transfer to potentiate therapeutically relevant effects of EC for targeted cell therapy of restenosis. The direct contact co-culture methodology provides a sensitive and reliable tool with potential utility for a variety of biomedical applications.
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Affiliation(s)
- Mark R Battig
- Division of Cardiology, The Children's Hospital of Philadelphia, and Department of Pediatrics, Perelman School of Medicine, Philadelphia, PA, 19104, USA
| | - Ilia Fishbein
- Division of Cardiology, The Children's Hospital of Philadelphia, and Department of Pediatrics, Perelman School of Medicine, Philadelphia, PA, 19104, USA
| | - Robert J Levy
- Division of Cardiology, The Children's Hospital of Philadelphia, and Department of Pediatrics, Perelman School of Medicine, Philadelphia, PA, 19104, USA
| | - Ivan S Alferiev
- Division of Cardiology, The Children's Hospital of Philadelphia, and Department of Pediatrics, Perelman School of Medicine, Philadelphia, PA, 19104, USA
| | - David Guerrero
- Division of Cardiology, The Children's Hospital of Philadelphia, and Department of Pediatrics, Perelman School of Medicine, Philadelphia, PA, 19104, USA
| | - Michael Chorny
- Division of Cardiology, The Children's Hospital of Philadelphia, and Department of Pediatrics, Perelman School of Medicine, Philadelphia, PA, 19104, USA.
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128
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Liu R, Heiss EH, Schachner D, Jiang B, Liu W, Breuss JM, Dirsch VM, Atanasov AG. Xanthohumol Blocks Proliferation and Migration of Vascular Smooth Muscle Cells in Vitro and Reduces Neointima Formation in Vivo. JOURNAL OF NATURAL PRODUCTS 2017. [PMID: 28627872 PMCID: PMC5537697 DOI: 10.1021/acs.jnatprod.7b00268] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Xanthohumol (1) is a principal prenylated chalcone found in hops. The aim of this study was to examine its influence on platelet-derived growth factor (PDGF)-BB-triggered vascular smooth muscle cell (VSMC) proliferation and migration in vitro and on experimentally induced neointima formation in vivo. Quantification of resazurin conversion indicated that 1 can inhibit PDGF-BB-induced VSMC proliferation concentration-dependently (IC50 = 3.49 μM). Furthermore, in a wound-healing assay 1 potently suppresses PDGF-BB-induced VSMC migration at 15 μM. Tested in a mouse femoral artery cuff model, 1 significantly reduces neointima formation. Taken together, we show that 1 represses PDGF-BB-induced VSMC proliferation and migration in vitro as well as neointima formation in vivo. This novel activity suggests 1 as an interesting candidate for further studies addressing a possible therapeutic application to counteract vascular proliferative disease.
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Affiliation(s)
- Rongxia Liu
- School of Pharmacy,
Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai
University), Ministry of Education, Collaborative Innovation Center
of Advanced Drug Delivery System and Biotech Drugs in Universities
of Shandong, Yantai University, Yantai, 264005, People’s Republic of China
| | - Elke H. Heiss
- Department
of Pharmacognosy, University of Vienna, Vienna, 1090, Austria
- Tel: +43-1-4277-55993. Fax: +43-1-4277-855270. E-mail: (E. H. Heiss)
| | - Daniel Schachner
- Department
of Pharmacognosy, University of Vienna, Vienna, 1090, Austria
| | - Baohong Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy
of Sciences, Shanghai, 201203, People’s Republic
of China
| | - Wanhui Liu
- School of Pharmacy,
Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai
University), Ministry of Education, Collaborative Innovation Center
of Advanced Drug Delivery System and Biotech Drugs in Universities
of Shandong, Yantai University, Yantai, 264005, People’s Republic of China
| | - Johannes M. Breuss
- Center for Physiology and Pharmacology, Institute for
Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, 1090, Austria
| | - Verena M. Dirsch
- Department
of Pharmacognosy, University of Vienna, Vienna, 1090, Austria
| | - Atanas G. Atanasov
- Department
of Pharmacognosy, University of Vienna, Vienna, 1090, Austria
- Institute of Genetics and Animal Breeding of the Polish Academy of
Sciences, 05-552 Jastrzebiec, Poland
- Tel: +43-1-4277-55231. Fax: +43-1-4277-55969. E-mail: (A. G. Atanasov)
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de Oliveira MG, Doro FG, Tfouni E, Krieger MH. Phenotypic switching prevention and proliferation/migration inhibition of vascular smooth muscle cells by the ruthenium nitrosyl complex trans-[Ru(NO)Cl(cyclam](PF 6 ) 2. ACTA ACUST UNITED AC 2017; 69:1155-1165. [PMID: 28590566 DOI: 10.1111/jphp.12755] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 05/07/2017] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Vascular smooth muscle cell (VSMC) migration and proliferation at sites of vascular injury are both critical steps in the development of intimal hyperplasia (IH). Local delivery of nitric oxide (NO) largely prevents these events. Among the NO donors, tetraazamacrocyclic nitrosyl complexes, such as trans-[Ru(NO)Cl(cyclam)](PF6 )2 (cyclamNO), gained attention for their features, which include the possibility of being embedded in solid matrices, and ability to participate in a nitrite/NO catalytic conversion cycle. METHODS Methods used to evaluate cyclamNO activity: safety margin by NR and MTT; cell proliferation by 3H-thymidine incorporation and proliferating cell nuclear antigen (PCNA) expression; antimigratory properties by transwell and wound healing; prevention of cell phenotypic switching under platelet-derived growth factor type BB (PDGF-BB) stimuli by analysis of alpha smooth muscle actin (α-SMA) expression. KEY FINDINGS Cell proliferation and migration induced by PDGF-BB were significantly inhibited by cyclamNO. The ~60% reduction on expression of contractile protein α-SMA induced by PDGF-BB revealed VSMC phenotypic switching which is significantly prevented by cyclamNO. Compared to the NO donor sodium nitroprusside, cyclamNO showed to be significantly less cytotoxic. CONCLUSIONS With great potential to maintain VSMC functionality and prevent IH-associated events, cyclamNO might be a promissory drug for several applications in cardiovascular medicine, as in stents.
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Affiliation(s)
- Mariana G de Oliveira
- Laboratório de Cardiovascular, Departamento de Anatomia, Biologia Celular e Fisiologia, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Fabio G Doro
- Departamento de Química Geral e Inorgânica, Instituto de Química, Universidade Federal da Bahia (UFBA), Salvador, BA, Brazil
| | - Elia Tfouni
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Marta H Krieger
- Laboratório de Cardiovascular, Departamento de Anatomia, Biologia Celular e Fisiologia, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
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130
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Brown RV, Wang T, Chappeta VR, Wu G, Onel B, Chawla R, Quijada H, Camp SM, Chiang ET, Lassiter QR, Lee C, Phanse S, Turnidge MA, Zhao P, Garcia JGN, Gokhale V, Yang D, Hurley LH. The Consequences of Overlapping G-Quadruplexes and i-Motifs in the Platelet-Derived Growth Factor Receptor β Core Promoter Nuclease Hypersensitive Element Can Explain the Unexpected Effects of Mutations and Provide Opportunities for Selective Targeting of Both Structures by Small Molecules To Downregulate Gene Expression. J Am Chem Soc 2017; 139:7456-7475. [PMID: 28471683 PMCID: PMC5977998 DOI: 10.1021/jacs.6b10028] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The platelet-derived growth factor receptor β (PDGFR-β) signaling pathway is a validated and important target for the treatment of certain malignant and nonmalignant pathologies. We previously identified a G-quadruplex-forming nuclease hypersensitive element (NHE) in the human PDGFR-β promoter that putatively forms four overlapping G-quadruplexes. Therefore, we further investigated the structures and biological roles of the G-quadruplexes and i-motifs in the PDGFR-β NHE with the ultimate goal of demonstrating an alternate and effective strategy for molecularly targeting the PDGFR-β pathway. Significantly, we show that the primary G-quadruplex receptor for repression of PDGFR-β is the 3'-end G-quadruplex, which has a GGA sequence at the 3'-end. Mutation studies using luciferase reporter plasmids highlight a novel set of G-quadruplex point mutations, some of which seem to provide conflicting results on effects on gene expression, prompting further investigation into the effect of these mutations on the i-motif-forming strand. Herein we characterize the formation of an equilibrium between at least two different i-motifs from the cytosine-rich (C-rich) sequence of the PDGFR-β NHE. The apparently conflicting mutation results can be rationalized if we take into account the single base point mutation made in a critical cytosine run in the PDGFR-β NHE that dramatically affects the equilibrium of i-motifs formed from this sequence. We identified a group of ellipticines that targets the G-quadruplexes in the PDGFR-β promoter, and from this series of compounds, we selected the ellipticine analog GSA1129, which selectively targets the 3'-end G-quadruplex, to shift the dynamic equilibrium in the full-length sequence to favor this structure. We also identified a benzothiophene-2-carboxamide (NSC309874) as a PDGFR-β i-motif-interactive compound. In vitro, GSA1129 and NSC309874 downregulate PDGFR-β promoter activity and transcript in the neuroblastoma cell line SK-N-SH at subcytotoxic cell concentrations. GSA1129 also inhibits PDGFR-β-driven cell proliferation and migration. With an established preclinical murine model of acute lung injury, we demonstrate that GSA1129 attenuates endotoxin-mediated acute lung inflammation. Our studies underscore the importance of considering the effects of point mutations on structure formation from the G- and C-rich sequences and provide further evidence for the involvement of both strands and associated structures in the control of gene expression.
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Affiliation(s)
- Robert V. Brown
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
| | - Ting Wang
- College of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, Arizona 85724, United States
| | | | - Guanhui Wu
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
| | - Buket Onel
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
| | - Reena Chawla
- BIO5 Institute, 1657 East Helen Street, Tucson, Arizona 85721, United States
| | - Hector Quijada
- College of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, Arizona 85724, United States
| | - Sara M. Camp
- College of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, Arizona 85724, United States
| | - Eddie T. Chiang
- College of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, Arizona 85724, United States
| | - Quinea R. Lassiter
- College of Agriculture & Life Sciences, University of Arizona, 1117 East Lowell Street, Tucson, Arizona 85721, United States
| | - Carmen Lee
- College of Agriculture & Life Sciences, University of Arizona, 1117 East Lowell Street, Tucson, Arizona 85721, United States
- College of Science, University of Arizona, 1040 East Fourth Street, Tucson, Arizona 85721, United States
| | - Shivani Phanse
- College of Science, University of Arizona, 1040 East Fourth Street, Tucson, Arizona 85721, United States
| | - Megan A. Turnidge
- College of Science, University of Arizona, 1040 East Fourth Street, Tucson, Arizona 85721, United States
| | - Ping Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, No. 280 Waihuandong Road, Education Mega Centre, Guanzhou 510006, Peoples Republic of China
| | - Joe G. N. Garcia
- College of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, Arizona 85724, United States
| | - Vijay Gokhale
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
- BIO5 Institute, 1657 East Helen Street, Tucson, Arizona 85721, United States
| | - Danzhou Yang
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
- BIO5 Institute, 1657 East Helen Street, Tucson, Arizona 85721, United States
- University of Arizona Cancer Center, 1515 North Campbell Avenue, Tucson, Arizona 85724, United States
| | - Laurence H. Hurley
- College of Pharmacy, University of Arizona, 1703 East Mabel Street, Tucson, Arizona 85721, United States
- BIO5 Institute, 1657 East Helen Street, Tucson, Arizona 85721, United States
- University of Arizona Cancer Center, 1515 North Campbell Avenue, Tucson, Arizona 85724, United States
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131
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Son DJ, Jung YY, Seo YS, Park H, Lee DH, Kim S, Roh YS, Han SB, Yoon DY, Hong JT. Interleukin-32α Inhibits Endothelial Inflammation, Vascular Smooth Muscle Cell Activation, and Atherosclerosis by Upregulating Timp3 and Reck through suppressing microRNA-205 Biogenesis. Am J Cancer Res 2017; 7:2186-2203. [PMID: 28740544 PMCID: PMC5505053 DOI: 10.7150/thno.18407] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/13/2017] [Indexed: 12/14/2022] Open
Abstract
Interleukin-32 (IL-32) is a multifaceted cytokine that promotes inflammation and regulates vascular endothelial cell behavior. Although some IL-32 isoforms have been reported to contribute to vascular inflammation and atherosclerosis, the functional role of IL-32α in vascular inflammation and atherogenesis has not been studied. Methods: IL-32α function was assessed in cells with transient IL-32α overexpression or treated with recombinant human IL-32α by western blotting and mRNA expression analysis. Vascular smooth muscle cell (VSMC) proliferation and migration was examined by BrdU incorporation and wound healing assays, respectively. In addition, the participation of IL-32α on vascular inflammation, arterial wall thickening, and atherosclerosis in vivo was monitored in human IL-32α transgenic (hIL-32α-Tg) mice with or without ApoE knockout (ApoE-/-/hIL-32α-Tg). Results: Our analyses showed that IL-32α suppresses genes involved in the inflammatory and immune responses and cell proliferation, and by limiting matrix metalloproteinase (MMP) function. In vivo, administration of hIL-32α inhibited vascular inflammation and atherosclerosis in hIL-32α-Tg and ApoE-/-/hIL-32α-Tg mice. Subsequent microarray and in silico analysis also revealed a marked decreased in inflammatory gene expression in hIL-32α-Tg mice. Collectively, our studies demonstrated that IL-32α upregulates the atheroprotective genes Timp3 and Reck by downregulating microRNA-205 through regulation of the Rprd2-Dgcr8/Ddx5-Dicer1 biogenesis pathway. Conclusion: Our findings provide the first direct evidence that IL-32α is an anti-inflammatory and anti-atherogenic cytokine that may be useful as a diagnostic and therapeutic protein in atherosclerosis.
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MiR-26a contributes to the PDGF-BB-induced phenotypic switch of vascular smooth muscle cells by suppressing Smad1. Oncotarget 2017; 8:75844-75853. [PMID: 29100273 PMCID: PMC5652667 DOI: 10.18632/oncotarget.17998] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 05/06/2017] [Indexed: 12/21/2022] Open
Abstract
The phenotypic switch of vascular smooth muscle cells (VSMCs) is a key event in the pathogenesis of various vascular diseases, such as atherosclerosis and post-angioplasty restenosis. Small non-coding microRNAs (miRNAs) have emerged as critical modulators of VSMC function. In the present study, miR-26a was significantly increased in cultured VSMCs stimulated by platelet-derived growth factor-BB (PDGF-BB) and in arteries with neointimal lesion formation. Moreover, we demonstrated that miR-26a regulates the expression of VSMC differentiation marker genes such as α-smooth muscle actin (α-SMA), calponin and smooth muscle myosin heavy chain (SM-MHC) in PDGF-BB-treated VSMCs. We further confirmed that the regulatory effect of miR-26a during the phenotypic transition occurs through its target gene Smad1, which is a critical mediator of the pro-contractile signal transmitted by bone morphogenetic protein (BMP) and transforming growth factor-beta (TGF-β). This discovery proposed a new channel for communication between PDGF and the BMP/TGF-β family. We concluded that miR-26a is an important regulator in the PDGF-BB-mediated VSMC phenotypic transition by targeting Smad1. Interventions aimed at miR-26a may be promising in treating numerous proliferative vascular disorders.
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Liu X, Wang J, Dong F, Li H, Hou Y. Induced differentiation of human gingival fibroblasts into VSMC-like cells. Differentiation 2017; 95:1-9. [PMID: 28107746 DOI: 10.1016/j.diff.2017.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 12/31/2016] [Accepted: 01/05/2017] [Indexed: 01/08/2023]
Abstract
Vascular smooth muscle cells (VSMCs) are major component of the vascular wall, and they play an essential role in maintaining the basic physiological function and stable structure of the vascular wall. In the present study, human gingival fibroblasts (HGFs) were cultured and induced into VSMC-like cells in vitro to confirm that HGFs with properties of stem cells have the potential for differentiation. The epithelium isolated from patients was extracted from normal human gingiva consisting of epithelium and connective tissue. HGFs were first identified by morphological examination, as well as specific gene and protein expression, and then induced by 10ng/mL PDGF-BB combined with 2ng/mL of TGF-β1 for 28 days. After induction, ICS data indicated that induced VSMC-like cells were positive for α-SMA and SM-MHC, and IFA data showed that induced cells were positive for SM22α and Cnn1. RT-PCR results demonstrated that α-SMA and SM-MHC mRNA were specifically expressed, and myofilament-like structures also appeared in induced cells. In conclusion, the data indicated that HGFs could differentiate to VSMC-like cells with typical VSMC morphologic, ultrastructural, and immunological characteristics via induction with PDGF-BB and TGF-β1.
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Affiliation(s)
- Xuqian Liu
- Department of Oral Pathology, The Key Laboratory of Stomatology, College of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jie Wang
- Department of Oral Pathology, The Key Laboratory of Stomatology, College of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China.
| | - Fusheng Dong
- Department of Oral and Maxillofacial Surgery, The Key Laboratory of Stomatology, College of Stomatology, Hebei Medical University, Shijiazhuang, China
| | - Hexiang Li
- Department of Oral Pathology, The Key Laboratory of Stomatology, College of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yali Hou
- Department of Oral Pathology, The Key Laboratory of Stomatology, College of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
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134
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Abstract
As a common etiology for ischemic stroke, atherosclerotic carotid stenosis has been targeted by vascular surgery since 1950s. Compared with carotid endarterectomy, carotid angioplasty and stenting (CAS) is almost similarly efficacious and less invasive. These advantages make CAS an alternative in treating carotid stenosis. However, accumulative evidences suggested that the long-term benefit-risk ratio of CAS may be decreased or even neutralized by the complications related to in-stent restenosis (ISR). Therefore, investigating the mechanisms and identifying the influential factors of ISR are of vital importance for improving the long-term outcomes of CAS. As responses to intrinsic and extrinsic injuries, intimal hyperplasia and vascular smooth muscle cell proliferation have been regarded as the principle mechanisms for ISR development. Due to the lack of consensus-based definition and consistent follow-up protocol, the reported incidences of ISR after CAS varied widely among studies. These variations made the inter-study comparisons of ISR largely illogical. To eliminate restenosis after CAS, both surgery and endovascular procedures have been attempted with promising results. For preventing ISR, drug-eluting stents and antiplatelets have been proposed as potential solutions.
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Affiliation(s)
- Zhengze Dai
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
- Department of Neurology, Pukou Hospital, Nanjing, China
| | - Gelin Xu
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
- Department of Neurology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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135
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Lekshmi KM, Che HL, Cho CS, Park IK. Drug- and Gene-eluting Stents for Preventing Coronary Restenosis. Chonnam Med J 2017; 53:14-27. [PMID: 28184335 PMCID: PMC5299126 DOI: 10.4068/cmj.2017.53.1.14] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 08/17/2016] [Accepted: 08/18/2016] [Indexed: 12/19/2022] Open
Abstract
Coronary artery disease (CAD) has been reported to be a major cause of death worldwide. Current treatment methods include atherectomy, coronary angioplasty (as a percutaneous coronary intervention), and coronary artery bypass. Among them, the insertion of stents into the coronary artery is one of the commonly used methods for CAD, although the formation of in-stent restenosis (ISR) is a major drawback, demanding improvement in stent technology. Stents can be improved using the delivery of DNA, siRNA, and miRNA rather than anti-inflammatory/anti-thrombotic drugs. In particular, genes that could interfere with the development of plaque around infected regions are conjugated on the stent surface to inhibit neointimal formation. Despite their potential benefits, it is necessary to explore the various properties of gene-eluting stents. Furthermore, multifunctional electronic stents that can be used as a biosensor and deliver drug- or gene-based on physiological condition will be a very promising way to the successful treatment of ISR. In this review, we have discussed the molecular mechanism of restenosis, the use of drug- and gene-eluting stents, and the possible roles that these stents have in the prevention and treatment of coronary restenosis. Further, we have explained how multifunctional electronic stents could be used as a biosensor and deliver drugs based on physiological conditions.
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Affiliation(s)
- Kamali Manickavasagam Lekshmi
- Department of Biomedical Sciences and BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Korea
| | - Hui-Lian Che
- Department of Biomedical Sciences and BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Korea.; Heart Research Centre, Chonnam National University Hospital, Gwangju, Korea
| | - Chong-Su Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - In-Kyu Park
- Department of Biomedical Sciences and BK21 PLUS Centre for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Korea
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Shi N, Li CX, Cui XB, Tomarev SI, Chen SY. Olfactomedin 2 Regulates Smooth Muscle Phenotypic Modulation and Vascular Remodeling Through Mediating Runt-Related Transcription Factor 2 Binding to Serum Response Factor. Arterioscler Thromb Vasc Biol 2017; 37:446-454. [PMID: 28062493 DOI: 10.1161/atvbaha.116.308606] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/22/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The objective of this study is to investigate the role and underlying mechanism of Olfactomedin 2 (Olfm2) in smooth muscle cell (SMC) phenotypic modulation and vascular remodeling. APPROACH AND RESULTS Platelet-derived growth factor-BB induces Olfm2 expression in primary SMCs while modulating SMC phenotype as shown by the downregulation of SMC marker proteins. Knockdown of Olfm2 blocks platelet-derived growth factor-BB-induced SMC phenotypic modulation, proliferation, and migration. Conversely, Olfm2 overexpression inhibits SMC marker expression. Mechanistically, Olfm2 promotes the interaction of serum response factor with the runt-related transcription factor 2 that is induced by platelet-derived growth factor-BB, leading to a decreased interaction between serum response factor and myocardin, causing a repression of SMC marker gene transcription and consequently SMC phenotypic modulation. Animal studies show that Olfm2 is upregulated in balloon-injured rat carotid arteries. Knockdown of Olfm2 effectively inhibits balloon injury-induced neointima formation. Importantly, knockout of Olfm2 in mice profoundly suppresses wire injury-induced neointimal hyperplasia while restoring SMC contractile protein expression, suggesting that Olfm2 plays a critical role in SMC phenotypic modulation in vivo. CONCLUSIONS Olfm2 is a novel factor mediating SMC phenotypic modulation. Thus, Olfm2 may be a potential target for treating injury-induced proliferative vascular diseases.
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Affiliation(s)
- Ning Shi
- From the Department of Physiology and Pharmacology, University of Georgia, Athens (N.S., C.-X.L., X.-B.C., S.-Y.C.); and Section on Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD (S.I.T.)
| | - Chen-Xiao Li
- From the Department of Physiology and Pharmacology, University of Georgia, Athens (N.S., C.-X.L., X.-B.C., S.-Y.C.); and Section on Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD (S.I.T.)
| | - Xiao-Bing Cui
- From the Department of Physiology and Pharmacology, University of Georgia, Athens (N.S., C.-X.L., X.-B.C., S.-Y.C.); and Section on Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD (S.I.T.)
| | - Stanislav I Tomarev
- From the Department of Physiology and Pharmacology, University of Georgia, Athens (N.S., C.-X.L., X.-B.C., S.-Y.C.); and Section on Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD (S.I.T.)
| | - Shi-You Chen
- From the Department of Physiology and Pharmacology, University of Georgia, Athens (N.S., C.-X.L., X.-B.C., S.-Y.C.); and Section on Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD (S.I.T.).
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Tanwar J, Trebak M, Motiani RK. Cardiovascular and Hemostatic Disorders: Role of STIM and Orai Proteins in Vascular Disorders. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:425-452. [PMID: 28900927 DOI: 10.1007/978-3-319-57732-6_22] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Store-operated Ca2+ entry (SOCE) mediated by STIM and Orai proteins is a highly regulated and ubiquitous signaling pathway that plays an important role in various cellular and physiological functions. Endoplasmic reticulum (ER) serves as the major site for intracellular Ca2+ storage. Stromal Interaction Molecule 1/2 (STIM1/2) sense decrease in ER Ca2+ levels and transmits the message to plasma membrane Ca2+ channels constituted by Orai family members (Orai1/2/3) resulting in Ca2+ influx into the cells. This increase in cytosolic Ca2+ in turn activates a variety of signaling cascades to regulate a plethora of cellular functions. Evidence from the literature suggests that SOCE dysregulation is associated with several pathophysiologies, including vascular disorders. Interestingly, recent studies have suggested that STIM proteins may also regulate vascular functions independent of their contribution to SOCE. In this updated book chapter, we will focus on the physiological role of STIM and Orai proteins in the vasculature (endothelial cells and vascular smooth muscle cells). We will further retrospect the literature implicating a critical role for these proteins in vascular disease.
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Affiliation(s)
- Jyoti Tanwar
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi, 110020, India
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA.
| | - Rajender K Motiani
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi, 110020, India.
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138
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Li K, Wang Y, Zhang A, Liu B, Jia L. miR-379 Inhibits Cell Proliferation, Invasion, and Migration of Vascular Smooth Muscle Cells by Targeting Insulin-Like Factor-1. Yonsei Med J 2017; 58:234-240. [PMID: 27873518 PMCID: PMC5122642 DOI: 10.3349/ymj.2017.58.1.234] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/29/2016] [Accepted: 05/30/2016] [Indexed: 01/12/2023] Open
Abstract
PURPOSE MicroRNAs are small non-coding RNAs that play important roles in vascular smooth muscle cell (VSMC) function. This study investigated the role of miR-379 on proliferation, invasion, and migration of VSMCs and explored underlying mechanisms thereof. MATERIALS AND METHODS MicroRNA, mRNA, and protein levels were determined by quantitative real-time PCR and western blot. The proliferative, invasive, and migratory abilities of VSMCs were measured by CCK-8, invasion, and wound healing assay, respectively. Luciferase reporter assay was used to confirm the target of miR-379. RESULTS Platelet-derived growth factor-bb was found to promote cell proliferation and suppress miR-379 expression in VSMCs. Functional assays demonstrated that miR-379 inhibited cell proliferation, cell invasion, and migration. Flow cytometry results further showed that miR-379 induced apoptosis in VSMCs. TargetScan analysis and luciferase report assay confirmed that insulin-like growth factor-1 (IGF-1) 3'UTR is a direct target of miR-379, and mRNA and protein levels of miR-379 and IGF-1 were inversely correlated. Rescue experiments showed that enforced expression of IGF-1 sufficiently overcomes the inhibitory effect of miR-379 on cell proliferation, invasion, and migration in VSMCs. CONCLUSION Our results suggest that miR-379 plays an important role in regulating VSMCs proliferation, invasion, and migration by targeting IGF-1.
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Affiliation(s)
- Kai Li
- Department of Cardiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi Province, China
| | - Yong Wang
- Department of Cardiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi Province, China.
| | - Anji Zhang
- Department of Cardiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi Province, China
| | - Baixue Liu
- Department of Cardiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi Province, China
| | - Li Jia
- Department of Cardiology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi Province, China
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139
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Herring BP, Hoggatt AM, Griffith SL, McClintick JN, Gallagher PJ. Inflammation and vascular smooth muscle cell dedifferentiation following carotid artery ligation. Physiol Genomics 2016; 49:115-126. [PMID: 28039430 PMCID: PMC5374455 DOI: 10.1152/physiolgenomics.00095.2016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 11/22/2022] Open
Abstract
Following vascular injury medial smooth muscle cells dedifferentiate and migrate through the internal elastic lamina where they form a neointima. The goal of the current study was to identify changes in gene expression that occur before the development of neointima and are associated with the early response to injury. Vascular injury was induced in C57BL/6 mice and in Myh11-creER(T2) mTmG reporter mice by complete ligation of the left carotid artery. Reporter mice were used to visualize cellular changes in the injured vessels. Total RNA was isolated from control carotid arteries or from carotid arteries 3 days following ligation of C57BL/6 mice and analyzed by Affymetrix microarray and quantitative RT-PCR. This analysis revealed decreased expression of mRNAs encoding smooth muscle-specific contractile proteins that was accompanied by a marked increase in a host of mRNAs encoding inflammatory cytokines following injury. There was also marked decrease in molecules associated with BMP, Wnt, and Hedgehog signaling and an increase in those associated with B cell, T cell, and macrophage signaling. Expression of a number of noncoding RNAs were also altered following injury with microRNAs 143/145 being dramatically downregulated and microRNAs 1949 and 142 upregulated. Several long noncoding RNAs showed altered expression that mirrored the expression of their nearest coding genes. These data demonstrate that following carotid artery ligation an inflammatory cascade is initiated that is associated with the downregulation of coding and noncoding RNAs that are normally required to maintain smooth muscle cells in a differentiated state.
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Affiliation(s)
- B Paul Herring
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - April M Hoggatt
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - Sarah L Griffith
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - Jeanette N McClintick
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Patricia J Gallagher
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana; and
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140
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Chen CC, Liang CJ, Leu YL, Chen YL, Wang SH. Viscolin Inhibits In Vitro Smooth Muscle Cell Proliferation and Migration and Neointimal Hyperplasia In Vivo. PLoS One 2016; 11:e0168092. [PMID: 27977759 PMCID: PMC5158191 DOI: 10.1371/journal.pone.0168092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 11/25/2016] [Indexed: 12/12/2022] Open
Abstract
Viscolin, an extract of Viscum coloratum, has anti-inflammatory and anti-proliferative properties against harmful stimuli. The aim of the study was to examine the anti-proliferative effects of viscolin on platelet derived growth factor-BB (PDGF)-treated human aortic smooth muscle cells (HASMCs) and identify the underlying mechanism responsible for these effects. Viscolin reduced the PDGF-BB-induced HASMC proliferation and migration in vitro; it also arrested HASMCs in the G0/G1 phase by decreasing the protein expression of Cyclin D1, CDK2, Cyclin E, CDK4, and p21Cip1 as detected by Western blot analysis. These effects may be mediated by reduced PDGF-induced phosphorylation of ERK1/2, JNK, and P38, but not AKT as well as inhibition of PDGF-mediated nuclear factor (NF)-κB p65 and activator protein 1 (AP-1)/c-fos activation. Furthermore, viscolin pre-treatment significantly reduced neointimal hyperplasia of an endothelial-denuded femoral artery in vivo. Taken together, viscolin attenuated PDGF–BB-induced HASMC proliferation in vitro and reduced neointimal hyperplasia in vivo. Thus, viscolin may represent a therapeutic candidate for the prevention and treatment of vascular proliferative diseases.
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Affiliation(s)
- Chin-Chuan Chen
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
- Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chan-Jung Liang
- Center for Lipid and Glycomedicine Research (CLGR), Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Lipid Biosciences (CLB), Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
- Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yuh-Lien Chen
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shu-Huei Wang
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
- * E-mail:
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141
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Huang C, Mei H, Zhou M, Zheng X. A novel PDGF receptor inhibitor-eluting stent attenuates in-stent neointima formation in a rabbit carotid model. Mol Med Rep 2016; 15:21-28. [PMID: 27922693 PMCID: PMC5355735 DOI: 10.3892/mmr.2016.5986] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 07/20/2016] [Indexed: 11/06/2022] Open
Abstract
A novel drug-eluting stent (DES) is required to target vascular smooth muscle cells (SMCs) without harming endothelial cells (ECs). Platelet-derived growth factor (PDGF) is critical for the proliferation and migration of SMCs. Sunitinib [a PDGF receptor (PDGFR) tyrosine kinase inhibitor]‑eluting stents may therefore inhibit neointimal formation. The aim of the present study was to examine the stent‑based delivery of sunitinib in a rabbit carotid model; in addition, the effects of sunitinib were evaluated in vitro. Local administration of sunitinib markedly reduced neointimal formation without delaying re-endothelialization in the carotid artery model. In vitro, sunitinib inhibited SMC proliferation; however, no effects were observed on ECs. Sunitinib caused necrosis of SMCs. In addition, sunitinib attenuated PDGF-stimulated SMC migration in a scratch wound assay and inhibited α‑SMA cytoskeleton polymerization. Furthermore, sunitinib inhibited PDGF-induced phosphorylation of extracellular signal-regulated kinase in vitro and in vivo. Therefore, this novel DES may be a potential strategy for the treatment of vascular disorders.
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Affiliation(s)
- Chen Huang
- Division of Vascular Surgery, Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Haijun Mei
- Division of Vascular Surgery, Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Min Zhou
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Xiaobing Zheng
- Division of Vascular Surgery, Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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142
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Bi R, Ding F, He Y, Jiang L, Jiang Z, Mei J, Liu H. miR-503 inhibits platelet-derived growth factor-induced human aortic vascular smooth muscle cell proliferation and migration through targeting the insulin receptor. Biomed Pharmacother 2016; 84:1711-1716. [PMID: 27829550 DOI: 10.1016/j.biopha.2016.10.081] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 10/19/2016] [Accepted: 10/27/2016] [Indexed: 12/14/2022] Open
Abstract
Abnormal proliferation and migration of vascular smooth muscle cells (VSMC) is a common feature of disease progression in atherosclerosis. Here, we investigated the potential role of miR-503 in platelet-derived growth factor (PDGF)-induced proliferation and migration of human aortic smooth muscle cells and the underlying mechanisms of action. miR-503 expression was significantly downregulated in a dose- and time-dependent manner following PDGF treatment. Introduction of miR-503 mimics into cultured SMCs significantly attenuated cell proliferation and migration induced by PDGF. Bioinformatics analyses revealed that the insulin receptor (INSR) is a target candidate of miR-503. miR-503 suppressed luciferase activity driven by a vector containing the 3'-untranslated region of INSR in a sequence-specific manner. Downregulation of INSR appeared critical for miR-503-mediated inhibitory effects on PDGF-induced cell proliferation and migration in human aortic SMCs. Based on the collective data, we suggest a novel role of miR-503 as a regulator of VSMC proliferation and migration through modulating INSR.
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Affiliation(s)
- Rui Bi
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Fangbao Ding
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Yi He
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Lianyong Jiang
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Zhaolei Jiang
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Ju Mei
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China.
| | - Hao Liu
- Department of Cardiothoracic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China.
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143
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Chen J, Cui X, Qian Z, Li Y, Kang K, Qu J, Li L, Gou D. Multi-omics analysis reveals regulators of the response to PDGF-BB treatment in pulmonary artery smooth muscle cells. BMC Genomics 2016; 17:781. [PMID: 27716141 PMCID: PMC5053085 DOI: 10.1186/s12864-016-3122-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 09/26/2016] [Indexed: 12/18/2022] Open
Abstract
Background Pulmonary arterial hypertension (PAH) is a lethal disease with pronounced narrowing of pulmonary vessels due to abnormal cell proliferation. The platelet-derived growth factor BB (PDGF-BB) is well known as a potent mitogen for smooth muscle cell proliferation. To better understand how this growth factor regulates pulmonary arterial smooth muscle cells (PASMCs) proliferation, we sought to characterize the response to PDGF-BB stimulation at system-wide levels, including the transcriptome and proteome. Results In this study, we identified 1611 mRNAs (transcriptome), 207 proteins (proteome) differentially expressed in response to PDGF-BB stimulation in PASMCs based on RNA-sequencing and isobaric tags for relative and absolute quantification (iTRAQ) assay. Transcription factor (TF)-target network analysis revealed that PDGF-BB regulated gene expression potentially via TFs including HIF1A, JUN, EST1, ETS1, SMAD1, FOS, SP1, STAT1, LEF1 and CEBPB. Among them, SMAD1-involved BMPR2/SMADs axis plays a significant role in PAH development. Interestingly, we observed that the expression of BMPR2 was decreased in both mRNA and protein level in response to PDGF-BB. Further study revealed that BMPR2 is the direct target of miR-376b that is up-regulated upon PDGF-BB treatment. Finally, EdU incorporation assay showed that miR-376b promoted proliferation of PASMCs. Conclusion This integrated analysis of PDGF-BB-regulated transcriptome and proteome was performed for the first time in normal PASMCs, which revealed a crosstalk between PDGF signaling and BMPR2/SMADs axis. Further study demonstrated that PDGF-BB-induced miR-376b upregulation mediated the downregulation of BMPR2, which led to expression change of its downstream targets and promoted proliferation of PASMCs. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3122-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jidong Chen
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Nanhai Ave 3688, Shenzhen, Guangdong, 518060, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Xiaolei Cui
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Nanhai Ave 3688, Shenzhen, Guangdong, 518060, China
| | - Zhengjiang Qian
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Nanhai Ave 3688, Shenzhen, Guangdong, 518060, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Yanjiao Li
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Nanhai Ave 3688, Shenzhen, Guangdong, 518060, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Kang Kang
- Department of Physiology, Shenzhen University Health Science Center, Shenzhen, Guangdong, 518060, China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Li Li
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Nanhai Ave 3688, Shenzhen, Guangdong, 518060, China.
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Nanhai Ave 3688, Shenzhen, Guangdong, 518060, China.
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144
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Daniel JM, Reichel CA, Schmidt-Woell T, Dutzmann J, Zuchtriegel G, Krombach F, Herold J, Bauersachs J, Sedding DG, Kanse SM. Factor VII-activating protease deficiency promotes neointima formation by enhancing leukocyte accumulation. J Thromb Haemost 2016; 14:2058-2067. [PMID: 27431088 DOI: 10.1111/jth.13417] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 07/01/2016] [Indexed: 01/08/2023]
Abstract
Essentials Factor VII-activating protease (FSAP) is a plasma protease involved in vascular processes. Neointima formation was investigated after vascular injury in FSAP-/- mice. The neointimal lesion size and the accumulation of macrophages were increased in FSAP-/- mice. This was due to an increased activity of the chemokine (C-C motif) ligand 2 (CCL2). SUMMARY Background Factor VII-activating protease (FSAP) is a multifunctional circulating plasma serine protease involved in thrombosis and vascular remodeling processes. The Marburg I single-nucleotide polymorphism (MI-SNP) in the FSAP-coding gene is characterized by low proteolytic activity, and is associated with increased rates of stroke and carotid stenosis in humans. Objectives To determine whether neointima formation after vascular injury is increased in FSAP-/- mice. Methods and Results The neointimal lesion size and the proliferation of vascular smooth muscle cells (VSMCs) were significantly enhanced in FSAP-/- mice as compared with C57BL/6 control mice after wire-induced injury of the femoral artery. Accumulation of leukocytes and macrophages was increased within the lesions of FSAP-/- mice at day 3 and day 14. Quantitative zymography demonstrated enhanced activity of gelatinases/matrix metalloproteinase (MMP)-2 and MMP-9 within the neointimal lesions of FSAP-/- mice, and immunohistochemistry showed particular costaining of MMP-9 with accumulating leukocytes. Using intravital microscopy, we observed that FSAP deficiency promoted the intravascular adherence and the subsequent transmigration of leukocytes in vivo in response to chemokine ligand 2 (CCL2). CCL2 expression was increased in FSAP-/- monocytes but not in the vessel wall. There was no difference in the expression of platelet-derived growth factor (PDGF-BB). Conclusions FSAP deficiency causes an increase in CCL2 expression and CCL2-mediated infiltration of leukocytes into the injured vessel, thereby promoting SMC proliferation and migration by the activation of leukocyte-derived gelatinases. These results provide a possible explanation for the observed association of the loss-of-function MI-SNP with vascular proliferative diseases.
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Affiliation(s)
- J-M Daniel
- Department of Biochemistry, Justus-Liebig-Universität Giessen, Giessen, Germany
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - C A Reichel
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-Universität München, Munich, Germany
- Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - T Schmidt-Woell
- Department of Biochemistry, Justus-Liebig-Universität Giessen, Giessen, Germany
| | - J Dutzmann
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - G Zuchtriegel
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-Universität München, Munich, Germany
- Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - F Krombach
- Walter Brendel Center of Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - J Herold
- Department of Cardiology, Angiology and Pneumology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - J Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - D G Sedding
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | - S M Kanse
- Department of Biochemistry, Justus-Liebig-Universität Giessen, Giessen, Germany.
- Oslo University Hospital and University of Oslo, Oslo, Norway.
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145
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Wang H, Yin YG, Huang H, Zhao XH, Yu J, Wang Q, Li W, Cai KY, Ding SF. Transplantation of EPCs overexpressing PDGFR-β promotes vascular repair in the early phase after vascular injury. BMC Cardiovasc Disord 2016; 16:179. [PMID: 27619504 PMCID: PMC5020463 DOI: 10.1186/s12872-016-0353-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/26/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) play important roles in the regeneration of the vascular endothelial cells (ECs). Platelet-derived growth factor receptor (PDGFR)-β is known to contribute to proliferation, migration, and angiogenesis of EPCs, this study aims to investigate effects of transplantation of EPCs overexpressing PDGFR-β on vascular regeneration. METHODS We transplanted genetically modified EPCs overexpressing PDGFR-β into a mouse model with carotid artery injury. After 3 days of EPCs transplantation, the enhanced green fluorescent protein (EGFP)-expressing cells were found at the injury site and the lining of the lumen by laser scanning confocal microscope (LSCM). At 4, 7, and 14 days of the carotid artery injury, reendothelialization was evaluated by Evans Blue staining. Neointima formation was evaluated at day 14 with hematoxylin and eosin (HE) staining by calculating the neointimal area, medial area, and neointimal/media (NI/M) ratio. Intimal cell apoptosis was evaluated using TUNEL assay. Then we tested whether PDGF-BB-induced VSMC migration and PDGF-BB's function in reducing VSMC apoptosis can be attenuated by EPCs overexpressing PDGFR-β in a transwell co-culture system. RESULTS Our results showed that EPCs overexpressing PDGFR-β accelerates reendothelialization and mitigates neointimal formation at 14 days after injury. Moreover, we found that there is great possibility that EPCs overexpressing PDGFR-β enhanc VSMC apoptosis and suppress VSMC migration by competitive consumption of PDGF-BB in the early phase after carotid artery injury in mice. CONCLUSIONS We report the first in vivo and in vitro evidence that transplantation of genetically modified EPC can have a combined effect of both amplifying the reendothelialization capacity of EPCs and inhibiting neointima formation so as to facilitate better inhibition of adverse remodeling after vascular injury.
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Affiliation(s)
- Hang Wang
- Cadre Ward Two, Wuhan General Hospital of Guangzhou Military Command, Wuhan, 430070, China
| | - Yang-Guang Yin
- Intensive Care Unit, The sixth people's hospital of Chongqing, Nan'an District, Chongqing, 400060, China
| | - Hao Huang
- Clinic center, Shenzhen Hornetcorn Biotechnology Company, Ltd, Shenzhen, 518400, China
| | - Xiao-Hui Zhao
- Institute of Cardiovascular Science, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Jie Yu
- Institute of Cardiovascular Science, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Qiang Wang
- Institute of Cardiovascular Science, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Wei Li
- Institute of Cardiovascular Science, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Ke-Yin Cai
- Cadre Ward Two, Wuhan General Hospital of Guangzhou Military Command, Wuhan, 430070, China
| | - Shi-Fang Ding
- Institute of Cardiovascular Science, Wuhan General Hospital of Guangzhou Military Command, Wuhan, 430070, China.
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146
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Kim YA, Lee DG, Yi KY, Lee BH, Jung YS. Blockade of Urotensin II Receptor Prevents Vascular Dysfunction. Biomol Ther (Seoul) 2016; 24:523-8. [PMID: 27582556 PMCID: PMC5012878 DOI: 10.4062/biomolther.2015.142] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 09/15/2015] [Accepted: 09/17/2015] [Indexed: 02/07/2023] Open
Abstract
Urotensin II (UII) is a potent vasoactive peptide and mitogenic agent to induce proliferation of various cells including vascular smooth muscle cells (VSMCs). In this study, we examined the effects of a novel UII receptor (UT) antagonist, KR-36676, on vasoconstriction of aorta and proliferation of aortic SMCs. In rat aorta, UII-induced vasoconstriction was significantly inhibited by KR-36676 in a concentration-dependent manner. In primary human aortic SMCs (hAoSMCs), UII-induced cell proliferation was significantly inhibited by KR-36676 in a concentration-dependent manner. In addition, KR-36676 decreased UII-induced phosphorylation of ERK, and UII-induced cell proliferation was also significantly inhibited by a known ERK inhibitor U0126. In mouse carotid ligation model, intimal thickening of carotid artery was dramatically suppressed by oral treatment with KR-36676 (30 mg/ kg/day) for 4 weeks compared to vehicle-treated group. From these results, it is indicated that KR-36676 suppress UII-induced proliferation of VSMCs at least partially through inhibition of ERK activation, and that it also attenuates UII-induced vasoconstriction and vascular neointima formation. Our study suggest that KR-36676 may be an attractive candidate for the pharmacological management of vascular dysfunction.
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Affiliation(s)
- Young-Ae Kim
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Dong Gil Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Kyu Yang Yi
- Research Center for Drug Discovery Technology, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Byung Ho Lee
- Research Center for Drug Discovery Technology, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea.,Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Republic of Korea
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147
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Alehagen U, Olsen RS, Länne T, Matussek A, Wågsäter D. PDGF-D gene polymorphism is associated with increased cardiovascular mortality in elderly men. BMC MEDICAL GENETICS 2016; 17:62. [PMID: 27585990 PMCID: PMC5009508 DOI: 10.1186/s12881-016-0325-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 08/20/2016] [Indexed: 12/22/2022]
Abstract
Background Platelet-derived growth factor (PDGF) D has been reported to be active in fibroblasts, and in areas of myocardial infarction. In this longitudinal study we evaluated the association between PDGF-D polymorphism and cardiovascular mortality, and attempted to discover whether specific genotype differences regarding risk could be observed, and if gender differences could be seen. Methods Four hundred seventy-six elderly community participants were included in this study. All participants underwent a clinical examination, echocardiography, and blood sampling including PDGF-D single nucleotide polymorphism (SNP) analyses of the rs974819 A/A, G/A and G/G SNP. The follow-up time was 6.7 years. Results No specific genotype of rs974819 demonstrated increased cardiovascular mortality in the total population, however, the male group with genotypes A/A and G/A demonstrated an increased risk that persisted in a multivariate evaluation where adjustments were made for well-known cardiovascular risk factors (2.7 fold compared with the G/G genotype). No corresponding finding was observed in the female group. Conclusion We report here for the first time that the genotypes G/A or A/A of the SNP rs974819 near PDGF-D exhibited a 2.7 fold increased cardiovascular mortality risk in males. Corresponding increased risk could not be observed in either the total population and thus not in the female group. However, the sample size is was small and the results should be regarded as hypothesis-generating, and thus more research in the field is recommended.
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Affiliation(s)
- Urban Alehagen
- Department of Cardiology, University Hospital of Linköping, SE-581 85, Linköping, Sweden. .,Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
| | - Renate S Olsen
- Division of Drug Research, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden.,Department of Laboratory Services, County Hospital Ryhov, Jönköping, Sweden
| | - Toste Länne
- Division of Drug Research, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden.,Department of Medical and Health Sciences, Division of Cardiovascular Medicine/Physiology, University of Linköping, 581 85, Linköping, Sweden
| | - Andreas Matussek
- Department of Laboratory Services, County Hospital Ryhov, Jönköping, Sweden
| | - Dick Wågsäter
- Division of Drug Research, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden.,Department of Medical and Health Sciences, Division of Drug Research/Clinical Pharmacology, University of Linköping, 581 85, Linköping, Sweden
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148
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Lee KP, Kim JE, Kim H, Chang HR, Lee DW, Park WH. Bo-Gan-Whan regulates proliferation and migration of vascular smooth muscle cells. Altern Ther Health Med 2016; 16:306. [PMID: 27549769 PMCID: PMC4994174 DOI: 10.1186/s12906-016-1292-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 08/17/2016] [Indexed: 02/05/2023]
Abstract
Background Bo-Gan-Whan (BGH), a Korean polyherbal medicine, is used as a hepatoprotective drug. It has six natural sources, and has been demonstrated to have anti-oxidative, anti-cancer, and anti-inflammatory properties; however, its effect on vascular diseases remains unclear. Methods Cell viability and proliferation assays were employed using an EZ-Cytox Cell Viability Assay Kit. Platelet-derived growth factor (PDGF)-BB-induced vascular smooth muscle cell (VSMC) migration was measured by scratch wound healing assay and Boyden chamber assay. The expression levels of the phosphorylated signaling proteins relevant to proliferation, including extracellular signal-regulated kinase (ERK) 1/2 and p38 mitogen-activated protein kinase (MAPK) were determined by western blot analysis. Chromatogram and mass analysis were employed by Ultra Performance Liquid Chromatography (UPLC) system. Cell prolife ration and migration were also explored using the PDGF-BB-induced aortic sprout assay. Results BGH (100–500 μg/mL) significantly inhibited the proliferation and migration of PDGF-BB-stimulated VSMCs through the reduced phosphorylation of ERK1/2 and p38 MAPK in comparison to untreated PDGF-BB-stimulated VSMC. Moreover, we identified the paeoniflorin as the major composition of BGH. Conclusions We suggest that BGH may have an anti-atherosclerosis effect by inhibiting the proliferation and migration of PDGF-BB-stimulated VSMCs through down-regulation of ERK1/2 and p38 MAPK phosphorylation.
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149
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The inhibition of calpains ameliorates vascular restenosis through MMP2/TGF-β1 pathway. Sci Rep 2016; 6:29975. [PMID: 27453531 PMCID: PMC4958998 DOI: 10.1038/srep29975] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 06/28/2016] [Indexed: 01/16/2023] Open
Abstract
Restenosis limits the efficacy of vascular percutaneous intervention, in which vascular smooth muscle cell (VSMC) proliferation and activation of inflammation are two primary causal factors. Calpains influence VSMC proliferation and collagen synthesis. However, the roles of calpastatin and calpains in vascular restenosis remain unclear. Here, restenosis was induced by ligating the left carotid artery, and VSMCs were pretreated with platelet-derived growth factor (PDGF)-BB. Adenovirus vector carrying MMP2 sequence and specific small interfering RNA against calpain-1/2 were introduced. Finally, restenosis enhanced the expression of calpain-1/2, but reduced calpastatin content. In calpastatin transgenic mice, lumen narrowing was attenuated gradually and peaked on days 14-21. Cell proliferation and migration as well as collagen synthesis were inhibited in transgenic mice, and expression of calpain-1/2 and MMP2/transforming growth factor-β1 (TGF-β1). Consistently, in VSMCs pretreated with PDGF-BB, calpastatin induction and calpains inhibition suppressed the proliferation and migration of VSMCs and collagen synthesis, and reduced expression of calpain-1/2 and MMP2/TGF-β1. Moreover, simvastatin improved restenosis indicators by suppressing the HIF-1α/calpains/MMP2/TGF-β1 pathway. However, MMP2 supplementation eliminated the vascular protection of calpastatin induction and simvastatin. Collectively, calpains inhibition plays crucial roles in vascular restenosis by preventing neointimal hyperplasia at the early stage via suppression of the MMP2/TGF-β1 pathway.
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150
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Shh mediates PDGF-induced contractile-to-synthetic phenotypic modulation in vascular smooth muscle cells through regulation of KLF4. Exp Cell Res 2016; 345:82-92. [DOI: 10.1016/j.yexcr.2016.05.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 05/11/2016] [Accepted: 05/15/2016] [Indexed: 12/31/2022]
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