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Wang Y, Li G, Yang L, Luo R, Guo G. Development of Innovative Biomaterials and Devices for the Treatment of Cardiovascular Diseases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201971. [PMID: 35654586 DOI: 10.1002/adma.202201971] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/29/2022] [Indexed: 06/15/2023]
Abstract
Cardiovascular diseases have become the leading cause of death worldwide. The increasing burden of cardiovascular diseases has become a major public health problem and how to carry out efficient and reliable treatment of cardiovascular diseases has become an urgent global problem to be solved. Recently, implantable biomaterials and devices, especially minimally invasive interventional ones, such as vascular stents, artificial heart valves, bioprosthetic cardiac occluders, artificial graft cardiac patches, atrial shunts, and injectable hydrogels against heart failure, have become the most effective means in the treatment of cardiovascular diseases. Herein, an overview of the challenges and research frontier of innovative biomaterials and devices for the treatment of cardiovascular diseases is provided, and their future development directions are discussed.
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Affiliation(s)
- Yunbing Wang
- National Engineering Research Center for Biomaterials and College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Gaocan Li
- National Engineering Research Center for Biomaterials and College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Li Yang
- National Engineering Research Center for Biomaterials and College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials and College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Gaoyang Guo
- National Engineering Research Center for Biomaterials and College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
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2
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Li KX, Wang ZC, Machuki JO, Li MZ, Wu YJ, Niu MK, Yu KY, Lu QB, Sun HJ. Benefits of Curcumin in the Vasculature: A Therapeutic Candidate for Vascular Remodeling in Arterial Hypertension and Pulmonary Arterial Hypertension? Front Physiol 2022; 13:848867. [PMID: 35530510 PMCID: PMC9075737 DOI: 10.3389/fphys.2022.848867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/03/2022] [Indexed: 01/14/2023] Open
Abstract
Growing evidence suggests that hypertension is one of the leading causes of cardiovascular morbidity and mortality since uncontrolled high blood pressure increases the risk of myocardial infarction, aortic dissection, hemorrhagic stroke, and chronic kidney disease. Impaired vascular homeostasis plays a critical role in the development of hypertension-induced vascular remodeling. Abnormal behaviors of vascular cells are not only a pathological hallmark of hypertensive vascular remodeling, but also an important pathological basis for maintaining reduced vascular compliance in hypertension. Targeting vascular remodeling represents a novel therapeutic approach in hypertension and its cardiovascular complications. Phytochemicals are emerging as candidates with therapeutic effects on numerous pathologies, including hypertension. An increasing number of studies have found that curcumin, a polyphenolic compound derived from dietary spice turmeric, holds a broad spectrum of pharmacological actions, such as antiplatelet, anticancer, anti-inflammatory, antioxidant, and antiangiogenic effects. Curcumin has been shown to prevent or treat vascular remodeling in hypertensive rodents by modulating various signaling pathways. In the present review, we attempt to focus on the current findings and molecular mechanisms of curcumin in the treatment of hypertensive vascular remodeling. In particular, adverse and inconsistent effects of curcumin, as well as some favorable pharmacokinetics or pharmacodynamics profiles in arterial hypertension will be discussed. Moreover, the recent progress in the preparation of nano-curcumins and their therapeutic potential in hypertension will be briefly recapped. The future research directions and challenges of curcumin in hypertension-related vascular remodeling are also proposed. It is foreseeable that curcumin is likely to be a therapeutic agent for hypertension and vascular remodeling going forwards.
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Affiliation(s)
- Ke-Xue Li
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Zi-Chao Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | | | - Meng-Zhen Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yu-Jie Wu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ming-Kai Niu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Kang-Ying Yu
- Nursing School of Wuxi Taihu University, Wuxi, China
| | - Qing-Bo Lu
- School of Medicine, Southeast University, Nanjing, China
| | - Hai-Jian Sun
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China.,Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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3
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Khang MK, Kuriakose AE, Nguyen T, Co CMD, Zhou J, Truong TTD, Nguyen KT, Tang L. Enhanced Endothelial Cell Delivery for Repairing Injured Endothelium via Pretargeting Approach and Bioorthogonal Chemistry. ACS Biomater Sci Eng 2020; 6:6831-6841. [PMID: 33320611 DOI: 10.1021/acsbiomaterials.0c00957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Arterial wall injury often leads to endothelium cell activation, endothelial detachment, and atherosclerosis plaque formation. While abundant research efforts have been placed on treating the end stages of the disease, no cure has been developed to repair injured and denude endothelium often occurred at an early stage of atherosclerosis. Here, a pretargeting cell delivery strategy using combined injured endothelial targeting nanoparticles and bioorthogonal click chemistry approach was developed to deliver endothelial cells to replenish the injured endothelium via a two-step process. First, nanoparticles bearing glycoprotein 1b α (Gp1bα) proteins and tetrazine (Tz) were fabricated to provide a homogeneous nanoparticle coating on an injured arterial wall via the interactions between Gp1bα and von Willebrand factor (vWF), a ligand that is present on denuded endothelium. Second, transplanted endothelium cells bearing transcyclooctene (TCO) would be quickly immobilized on the surfaces of nanoparticles via TCO:Tz reactions. In vitro binding studies under both static and flow conditions confirmed that our novel Tz-labeled Gp1bα-conjugated poly(lactic-co-glycolic acid) (PLGA) nanoparticles can successfully pretargeted toward the injured site and support rapid adhesion of endothelial cells from the circulation. Ex vivo results also confirm that such an approach is highly efficient in mediating the local delivery of endothelial cells at the sites of arterial injury. The results support that this pretargeting cell delivery approach may be used for repairing injured endothelium in situ at its early stage.
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Affiliation(s)
- Min Kyung Khang
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States.,Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76010, United States
| | - Aneetta Elizabeth Kuriakose
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Tam Nguyen
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Cynthia My-Dung Co
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Jun Zhou
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Thuy Thi Dang Truong
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Kytai Truong Nguyen
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, P.O. Box 19138, Arlington, Texas 76010, United States
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4
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Jung RG, Simard T, Labinaz A, Ramirez FD, Di Santo P, Motazedian P, Rochman R, Gaudet C, Faraz MA, Beanlands RS, Hibbert B. Role of plasminogen activator inhibitor-1 in coronary pathophysiology. Thromb Res 2018; 164:54-62. [DOI: 10.1016/j.thromres.2018.02.135] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 02/03/2018] [Accepted: 02/15/2018] [Indexed: 01/13/2023]
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5
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Li L, An L, Zhou X, Pan S, Meng X, Ren Y, Yang K, Guan Y. Biological behaviour of human umbilical artery smooth muscle cell grown on nickel-free and nickel-containing stainless steel for stent implantation. Sci Rep 2016; 6:18762. [PMID: 26727026 PMCID: PMC4698661 DOI: 10.1038/srep18762] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/26/2015] [Indexed: 12/12/2022] Open
Abstract
To evaluate the clinical potential of high nitrogen nickel-free austenitic stainless steel (HNNF SS), we have compared the cellular and molecular responses of human umbilical artery smooth muscle cells (HUASMCs) to HNNF SS and 316L SS (nickel-containing austenitic 316L stainless steel). CCK-8 analysis and flow cytometric analysis were used to assess the cellular responses (proliferation, apoptosis, and cell cycle), and quantitative real-time PCR (qRT-PCR) was used to analyze the gene expression profiles of HUASMCs exposed to HNNF SS and 316L SS, respectively. CCK-8 analysis demonstrated that HUASMCs cultured on HNNF SS proliferated more slowly than those on 316L SS. Flow cytometric analysis revealed that HNNF SS could activate more cellular apoptosis. The qRT-PCR results showed that the genes regulating cell apoptosis and autophagy were up-regulated on HNNF SS. Thus, HNNF SS could reduce the HUASMC proliferation in comparison to 316L SS. The findings furnish valuable information for developing new biomedical materials for stent implantation.
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Affiliation(s)
- Liming Li
- Institute of Biotechnology, Northeastern University, Shenyang, China.,Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, China
| | - Liwen An
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, China
| | - Xiaohang Zhou
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, China
| | - Shuang Pan
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, China
| | - Xin Meng
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, China
| | - Yibin Ren
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Yifu Guan
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, China
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6
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Roopmani P, Sethuraman S, Satheesh S, Maheswari Krishnan U. The metamorphosis of vascular stents: passive structures to smart devices. RSC Adv 2016. [DOI: 10.1039/c5ra19109b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The role of nanotechnology enabled techniques in the evolution of vascular stents.
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Affiliation(s)
- Purandhi Roopmani
- Centre for Nanotechnology and Advanced Biomaterials (CeNTAB)
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613 401
- India
| | - Swaminathan Sethuraman
- Centre for Nanotechnology and Advanced Biomaterials (CeNTAB)
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613 401
- India
| | - Santhosh Satheesh
- Jawaharlal Institute of Post Graduate Medical Education and Research (JIPMER)
- Department of Cardiology
- Pondicherry-605 006
- India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology and Advanced Biomaterials (CeNTAB)
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613 401
- India
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7
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Zhou J, Hu W, Tang L. Non-invasive Characterization of Immune Responses to Biomedical Implants. Ann Biomed Eng 2015; 44:693-704. [DOI: 10.1007/s10439-015-1470-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 09/22/2015] [Indexed: 01/08/2023]
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8
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Accelerated Recovery of Endothelium Function after Stent Implantation with the Use of a Novel Systemic Nanoparticle Curcumin. BIOMED RESEARCH INTERNATIONAL 2015; 2015:291871. [PMID: 26167481 PMCID: PMC4475764 DOI: 10.1155/2015/291871] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 05/24/2015] [Indexed: 01/31/2023]
Abstract
Curcumin was reported to exhibit a wide range of pharmacological effects including antioxidant, anti-inflammatory, and antiproliferative activities and significantly prevent smooth muscle cells migration. In the present study, a novel kind of curcumin loaded nanoparticles (Cur-NP) has been prepared and characterized with the aim of inhibiting inflammation formation and accelerating the healing process of the stented arteries. Cur-NP was administrated intravenously after stent implantation twice a week and detailed tissue responses were evaluated. The results demonstrated that intravenous administration of Cur-NP after stent implantation accelerated endothelial cells restoration and endothelium function recovery and may potentially be an effective therapeutic alternative to reduce adverse events for currently available drug eluting stents.
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9
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Hassan HA, El-Gharib NE. Obesity and Clinical Riskiness Relationship: Therapeutic Management by Dietary Antioxidant Supplementation—a Review. Appl Biochem Biotechnol 2015; 176:647-69. [DOI: 10.1007/s12010-015-1602-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 03/31/2015] [Indexed: 01/03/2023]
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10
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Kewitz S, Volkmer I, Staege MS. Curcuma Contra Cancer? Curcumin and Hodgkin's Lymphoma. CANCER GROWTH AND METASTASIS 2013; 6:35-52. [PMID: 24665206 PMCID: PMC3941149 DOI: 10.4137/cgm.s11113] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Curcumin, a phytochemical isolated from curcuma plants which are used as coloring ingredient for the preparation of curry powder, has several activities which suggest that it might be an interesting drug for the treatment or prevention of cancer. Curcumin targets different pathways which are involved in the malignant phenotype of tumor cells, including the nuclear factor kappa B (NFKB) pathway. This pathway is deregulated in multiple tumor entities, including Hodgkin’s lymphoma (HL). Indeed, curcumin can inhibit growth of HL cell lines and increases the sensitivity of these cells for cisplatin. In this review we summarize curcumin activities with special focus on possible activities against HL cells.
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Affiliation(s)
- Stefanie Kewitz
- Martin-Luther-University Halle-Wittenberg, University Clinic and Polyclinic for Child and Adolescent Medicine, Halle, Germany
| | - Ines Volkmer
- Martin-Luther-University Halle-Wittenberg, University Clinic and Polyclinic for Child and Adolescent Medicine, Halle, Germany
| | - Martin S Staege
- Martin-Luther-University Halle-Wittenberg, University Clinic and Polyclinic for Child and Adolescent Medicine, Halle, Germany
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11
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Curcumin/xanthan–galactomannan hydrogels: Rheological analysis and biocompatibility. Carbohydr Polym 2013; 93:279-84. [DOI: 10.1016/j.carbpol.2012.02.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 02/09/2012] [Accepted: 02/17/2012] [Indexed: 11/17/2022]
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12
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Amini AR, Wallace JS, Nukavarapu SP. Short-term and long-term effects of orthopedic biodegradable implants. J Long Term Eff Med Implants 2012; 21:93-122. [PMID: 22043969 DOI: 10.1615/jlongtermeffmedimplants.v21.i2.10] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Presently, orthopedic and oral/maxillofacial implants represent a combined $2.8 billion market, a figure expected to experience significant and continued growth. Although traditional permanent implants have been proved clinically efficacious, they are also associated with several drawbacks, including secondary revision and removal surgeries. Non-permanent, biodegradable implants offer a promising alternative for patients, as they provide temporary support and degrade at a rate matching tissue formation, and thus, eliminate the need for secondary surgeries. These implants have been in clinical use for nearly 25 years, competing directly with, or maybe even exceeding, the performance of permanent implants. The initial implantation of biodegradable materials, as with permanent materials, mounts an acute host inflammatory response. Over time, the implant degradation profile and possible degradation product toxicity mediate long-term biodegradable implant-induced inflammation. However, unlike permanent implants, this inflammation is likely to cease once the material disappears. Implant-mediated inflammation is a critical determinant for implant success. Thus, for the development of a proactive biodegradable implant that has the ability to promote optimal bone regeneration and minimal detrimental inflammation, a thorough understanding of short- and long-term inflammatory events is required. Here, we discuss an array of biodegradable orthopedic implants, their associated short- and long- term inflammatory effects, and methods to mediate these inflammatory events.
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Affiliation(s)
- Ami R Amini
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, CT, USA
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13
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In vitro mutagenicity and blood compatibility of paclitaxel and curcumin in poly (DL-lactide-co-glicolide) films. Toxicol In Vitro 2012; 27:198-203. [PMID: 23108037 DOI: 10.1016/j.tiv.2012.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 10/16/2012] [Accepted: 10/16/2012] [Indexed: 11/23/2022]
Abstract
Curcumin is considered to be a potential component for drug-eluting stents due to its anti-inflammatory properties. In this study we compared the mutagenicity and blood compatibility of curcumin to first generation drug eluting stent components: paclitaxel and sirolimus. The Ames test was used to assess mutagenicity. Blood compatibility was tested by measuring platelet activation and fibrinogen adsorption on poly (DL-lactide-co-glycolide, PLGA) films. We discovered that there was no significant increase in the number of revertants/plate following treatment with curcumin (up to 0.5mg/plate) or sirolimus (up to 0.5 μg/plate). However, a significant induction in the frequency of bacterial his(+) revertant colonies by paclitaxel at concentrations of 0.02, 0.05, 0.1, 0.2 and 0.5 μg/plate was observed. We also discovered a significant reduction in platelet activation by PLGA films containing 30% and 50% by weight curcumin. A similar reduction in platelet activation was also observed for PLGA films containing 1% by weight paclitaxel. In addition, we observed an increase of fibrinogen adsorption to PLGA-films containing curcumin. This would compromise the potential use of curcumin as a component of drug-eluting stents. Moreover, our data challenges the current view that paclitaxel does not significantly induce mutagenesis.
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Ganesh SK, Joo J, Skelding K, Mehta L, Zheng G, O'Neill K, Billings EM, Helgadottir A, Andersen K, Thorgeirsson G, Gudnason T, Geller NL, Simari RD, Holmes DR, O'Neill WW, Nabel EG. Time course analysis of gene expression identifies multiple genes with differential expression in patients with in-stent restenosis. BMC Med Genomics 2011; 4:20. [PMID: 21356094 PMCID: PMC3053213 DOI: 10.1186/1755-8794-4-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 02/28/2011] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND The vascular disease in-stent restenosis (ISR) is characterized by formation of neointima and adverse inward remodeling of the artery after injury by coronary stent implantation. We hypothesized that the analysis of gene expression in peripheral blood mononuclear cells (PBMCs) would demonstrate differences in transcript expression between individuals who develop ISR and those who do not. METHODS AND RESULTS We determined and investigated PBMC gene expression of 358 patients undergoing an index procedure to treat in de novo coronary artery lesions with bare metallic stents, using a novel time-varying intercept model to optimally assess the time course of gene expression across a time course of blood samples. Validation analyses were conducted in an independent sample of 97 patients with similar time-course blood sampling and gene expression data. We identified 47 probesets with differential expression, of which 36 were validated upon independent replication testing. The genes identified have varied functions, including some related to cellular growth and metabolism, such as the NAB2 and LAMP genes. CONCLUSIONS In a study of patients undergoing bare metallic stent implantation, we have identified and replicated differential gene expression in peripheral blood mononuclear cells, studied across a time series of blood samples. The genes identified suggest alterations in cellular growth and metabolism pathways, and these results provide the basis for further specific functional hypothesis generation and testing of the mechanisms of ISR.
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Affiliation(s)
- Santhi K Ganesh
- National Heart, Lung, and Blood Institute (NHLBI), Division of Intramural Research, Bethesda, Maryland, USA
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15
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Hollow microcapsules built by layer by layer assembly for the encapsulation and sustained release of curcumin. Colloids Surf B Biointerfaces 2011; 82:588-93. [DOI: 10.1016/j.colsurfb.2010.10.021] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Revised: 09/09/2010] [Accepted: 10/11/2010] [Indexed: 02/02/2023]
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16
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Pandey A, Aswath P. Indentation creep reservoirs for drug-eluting poly(L-lactic acid) scaffolds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2010; 22:1591-606. [PMID: 20663280 DOI: 10.1163/092050610x517103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The indentation creep behavior of poly(L-lactic acid) (PLLA) thin and thick films was examined. The creep rate was found to be strongly dependent on applied stress, as well as on the thickness of the PLLA film with creep rates being much larger in thin films compared to thick ones at lower stresses, but the difference was minimal at high stresses. The indentation creep approach was used to create a drug-delivery device with multiple reservoirs. Managing the thickness of the diffusion barrier that was a low-molecular-weight PLLA controlled the rate of drug release and it is shown that transport of drug through the barrier is diffusion controlled and the rate of dissolution of the PLLA is slower than the rate of transport of drug. A stable release rate together with periodic pulsed release was achieved over a period of 28 days with complete transport of the drug achieved over this time frame.
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Affiliation(s)
- Anurag Pandey
- Materials Science and Engineering Department, The University of Texas at Arlington, 76019, USA
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17
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Albini A, Indraccolo S, Noonan DM, Pfeffer U. Functional genomics of endothelial cells treated with anti-angiogenic or angiopreventive drugs. Clin Exp Metastasis 2010; 27:419-39. [PMID: 20383568 DOI: 10.1007/s10585-010-9312-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 02/16/2010] [Indexed: 01/28/2023]
Abstract
Angiogenesis is a highly regulated physiological process that has been studied in considerable detail given its importance in several chronic pathologies. Many endogenous factors and hormones intervene in the regulation of angiogensis and classical as well as targeted drugs have been developed for its control. Angiogenesis inhibition has come off the bench and entered into clinical application for cancer therapy, particularly for metastatic disease. While the clinical benefit is currently in terms of months, preclinical data suggest that novel drugs and drug combinations could lead to substantial improvement. The many targets of endogenous angiogenesis inhibitors reflect the complexity of the process; in contrast, current clinical therapies mainly target the vascular endothelial growth factor system. Cancer chemopreventive compounds can retard tumor insurgence and delay or prevent metastasis and many of these molecules hinder angiogenesis, a mechanism that we termed angioprevention. Angiopreventive drugs appear to prevalently act through the inhibition of the pro-inflammatory and anti-apoptotic player NFkappaB, thus contrasting inflammation dependent angiogenesis. Relatively little is known concerning the effects of these angiogenesis inhibitors on gene expression of endothelial cells, the main target of many of these molecules. Here we provide an exhaustive list of anti-angiogenic molecules, and summarize their effects, where known, on the transcriptome and functional genomics of endothelial cells. The regulation of specific genes can be crucial to preventive or therapeutic intervention. Further, novel targets might help to circumvent resistance to anti-angiogenic therapy. The studies we review are relevant not only to cancer but also to other chronic degenerative diseases involving endothelial cells, such as cardiovascular disorders, diabetes, rheumatoid arthritis and retinopaties, as well as vessel aging.
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Affiliation(s)
- Adriana Albini
- MultiMedica Castellanza (VA) and Oncology Research, IRCCS MultiMedica, 20138 Milan, Italy.
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18
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Kona S, Chellamuthu P, Xu H, Hills SR, Nguyen KT. Effects of cyclic strain and growth factors on vascular smooth muscle cell responses. Open Biomed Eng J 2009; 3:28-38. [PMID: 19812708 PMCID: PMC2757671 DOI: 10.2174/1874120700903010028] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 07/06/2009] [Accepted: 07/09/2009] [Indexed: 01/09/2023] Open
Abstract
Under physiological and pathological conditions, vascular smooth muscle cells (SMC) are exposed to different biochemical factors and biomechanical forces. Previous studies pertaining to SMC responses have not investigated the effects of both factors on SMCs. Thus, in our research we investigated the combined effects of growth factors like Bfgf (basic fibroblast growth factor), TGF-β (transforming growth factor β) and PDGF (platelet-derived growth factor) along with physiological cyclic strain on SMC responses. Physiological cyclic strain (10% strain) significantly reduced SMC proliferation compared to static controls while addition of growth factors bFGF, TGF-β or PDGF-AB had a positive influence on SMC growth compared to strain alone. Microarray analysis of SMCs exposed to these growth factors and cyclic strain showed that several bioactive genes (vascular endothelial growth factor, epidermal growth factor receptor, etc.) were altered upon exposure. Further work involving biochemical and pathological cyclic strain stimulation will help us better understand the role of cyclic strain and growth factors in vascular functions and development of vascular disorders.
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Affiliation(s)
- Soujanya Kona
- Department of Bioengineering, University of Texas at Arlington and University of Texas Southwestern Medical Center at Dallas, USA
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Abstract
Synthetic polymer coatings are used extensively in modern medical devices and implants because of their material versatility and processability. These coatings are designed for specific applications by controlling composition and physical and chemical properties, and they can be formed into a variety of complex structures and shapes. However, implantation of these materials into the body elicits a strong inflammatory host response that significantly limits the integration and biological performance of devices. Biomaterial-mediated inflammation is a complex reaction involving protein adsorption, leukocyte recruitment and activation, secretion of inflammatory mediators, and fibrous encapsulation of the implant. Significant research efforts have focused on modifying material properties using various anti-inflammatory polymeric surface coatings to generate more biocompatible implants. This minireview provides a brief background on the events of biomaterial-mediated inflammation and highlights various approaches used for modifying material surfaces to modulate inflammatory responses. These include both passive and active strategies, such as nonfouling surface treatments and delivery of anti-inflammatory agents, respectively. Novel approaches will be needed to extend the in vivo lifetime and performance of devices and reduce the need for multiple implantation surgeries.
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Affiliation(s)
- Amanda W. Bridges
- Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia
| | - Andrés J. García
- Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia
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20
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Lewis G. Materials, fluid dynamics, and solid mechanics aspects of coronary artery stents: A state‐of‐the‐art review. J Biomed Mater Res B Appl Biomater 2008; 86:569-90. [DOI: 10.1002/jbm.b.31028] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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21
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Belligundu S, Shiakolas PS, Pandey A, Aswath PB. A systemic approach toward optimization of the hot embossing of poly-L-lactic acid for biomedical applications. J Biomed Mater Res B Appl Biomater 2008; 85:469-77. [DOI: 10.1002/jbm.b.30967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Hupcey MAZ, Ekins S. Improving the drug selection and development process for combination devices. Drug Discov Today 2007; 12:844-52. [PMID: 17933686 DOI: 10.1016/j.drudis.2007.07.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 07/14/2007] [Accepted: 07/16/2007] [Indexed: 11/16/2022]
Abstract
Combination devices are at the interface of both pharmaceutical and medical device research. While there have been several notable successes in bringing combination devices to market there are drug selection criteria that both the pharmaceutical and medical device companies need to consider. A successful combination device creates a product that has efficacy greater than the sum of the parts. However, failure to address some aspects of the drug or biologic properties in enough detail could result in a suboptimal product, creating a challenging legacy for future iterations. This review addresses the many dimensions including opportunities and challenges of combination device development from both the device and pharmaceutical perspectives.
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Affiliation(s)
- Maggie A Z Hupcey
- PA Consulting Group, 600 College Road East, Suite 1120, Princeton, NJ 08540, USA.
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23
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Aggarwal BB, Sundaram C, Malani N, Ichikawa H. CURCUMIN: THE INDIAN SOLID GOLD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 595:1-75. [PMID: 17569205 DOI: 10.1007/978-0-387-46401-5_1] [Citation(s) in RCA: 842] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Turmeric, derived from the plant Curcuma longa, is a gold-colored spice commonly used in the Indian subcontinent, not only for health care but also for the preservation of food and as a yellow dye for textiles. Curcumin, which gives the yellow color to turmeric, was first isolated almost two centuries ago, and its structure as diferuloylmethane was determined in 1910. Since the time of Ayurveda (1900 Bc) numerous therapeutic activities have been assigned to turmeric for a wide variety of diseases and conditions, including those of the skin, pulmonary, and gastrointestinal systems, aches, pains, wounds, sprains, and liver disorders. Extensive research within the last half century has proven that most of these activities, once associated with turmeric, are due to curcumin. Curcumin has been shown to exhibit antioxidant, anti-inflammatory, antiviral, antibacterial, antifungal, and anticancer activities and thus has a potential against various malignant diseases, diabetes, allergies, arthritis, Alzheimer's disease, and other chronic illnesses. These effects are mediated through the regulation of various transcription factors, growth factors, inflammatory cytokines, protein kinases, and other enzymes. Curcumin exhibits activities similar to recently discovered tumor necrosis factor blockers (e.g., HUMIRA, REMICADE, and ENBREL), a vascular endothelial cell growth factor blocker (e.g., AVASTIN), human epidermal growth factor receptor blockers (e.g., ERBITUX, ERLOTINIB, and GEFTINIB), and a HER2 blocker (e.g., HERCEPTIN). Considering the recent scientific bandwagon that multitargeted therapy is better than monotargeted therapy for most diseases, curcumin can be considered an ideal "Spice for Life".
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MESH Headings
- Animals
- Anti-Bacterial Agents/chemistry
- Anti-Bacterial Agents/pharmacology
- Anti-Bacterial Agents/therapeutic use
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Antifungal Agents/chemistry
- Antifungal Agents/pharmacology
- Antifungal Agents/therapeutic use
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Agents, Phytogenic/therapeutic use
- Antioxidants/chemistry
- Antioxidants/pharmacology
- Antioxidants/therapeutic use
- Antiviral Agents/chemistry
- Antiviral Agents/pharmacology
- Antiviral Agents/therapeutic use
- Arthritis, Rheumatoid/drug therapy
- Curcuma/chemistry
- Curcumin/analogs & derivatives
- Curcumin/chemistry
- Curcumin/metabolism
- Curcumin/pharmacology
- Curcumin/therapeutic use
- Humans
- India
- Medicine, Ayurvedic
- Models, Biological
- Molecular Structure
- Neoplasms/drug therapy
- Phytotherapy
- Plants, Medicinal
- Spices
- Structure-Activity Relationship
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Affiliation(s)
- Bharat B Aggarwal
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
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24
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Tsukagoshi T, Kondo Y, Yoshino N. Preparation of thin polymer films with controlled drug release. Colloids Surf B Biointerfaces 2007; 57:219-25. [PMID: 17382526 DOI: 10.1016/j.colsurfb.2007.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 02/03/2007] [Indexed: 11/28/2022]
Abstract
Poly(N-isopropylacrylamide) (PAAm) is a thermal responsive polymer that undergoes a structural change in aqueous solution at its lower critical solution temperature (LCST). PAAm-modified silicon substrates were prepared and the effect of PAAm density on the thermal response of the modified surface was examined in terms of changes in the water contact angle as a basis for applying the structural change of the polymer to controlled drug release. Changes with temperature in the ability to load and release of the modified layer for drug were also examined using 2-acetoxybenzoic acid (aspirin) as a model drug. The amount of PAAm was found to greatly affect the thermal response and the ability to load and release of the modified layer for aspirin.
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Affiliation(s)
- Tatsuya Tsukagoshi
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, 12-1 Ichigaya-Funagawara, Tokyo, Japan
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25
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Pan CJ, Tang JJ, Shao ZY, Wang J, Huang N. Improved blood compatibility of rapamycin-eluting stent by incorporating curcumin. Colloids Surf B Biointerfaces 2007; 59:105-11. [PMID: 17540543 DOI: 10.1016/j.colsurfb.2007.04.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2007] [Revised: 04/10/2007] [Accepted: 04/25/2007] [Indexed: 11/17/2022]
Abstract
This paper dealt with improving the blood compatibility of the rapamycin-eluting stent by incorporating curcumin. The rapamycin- and rapamycin/curcumin-loaded PLGA (poly(d,l-lactic acid-co-glycolic acid)) coatings were fabricated onto the surface of the stainless steel stents using an ultrasonic atomization spray method. The structure of the coating films was characterized by Fourier transform infrared spectroscopy (FTIR). The optical microscopy and scanning electron microscopy (SEM) images of the drug-eluting stents indicated that the surface of all drug-eluting stents was very smooth and uniform, and there were not webbings and "bridges" between struts. There were not any cracks and delaminations on stent surface after expanded by the angioplasty balloon. The in vitro platelet adhesion and activation were investigated by static platelet adhesion test and GMP140 (P-selection), respectively. The clotting time was examined by activated partially prothromplastin time (APTT) test. The fibrinogen adsorption on the drug-loaded PLGA films was evaluated by enzyme-linked immunosorbent assay (ELISA). All obtained data showed that incorporating curcumin in rapamycin-loaded PLGA coating can significantly decrease platelet adhesion and activation, prolong APTT clotting time as well as decrease the fibrinogen adsorption. All results indicated that incorporating curcumin in rapamycin-eluting coating obviously improve the blood compatibility of rapamycin-eluting stents. It was suggested that it may be possible to develop a drug-eluting stent which had the characteristics of not only good anti-proliferation but also improved anticoagulation.
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Affiliation(s)
- C J Pan
- Key Laboratory of Advanced Materials Technology, Education Ministry, Southwest Jiaotong University, Chengdu 610031, China
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26
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Tsukagoshi T, Kondo Y, Yoshino N. Preparation of thin polymer films with drug release and protein adsorption resistance. Colloids Surf B Biointerfaces 2007; 55:19-25. [PMID: 17161591 DOI: 10.1016/j.colsurfb.2006.10.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2006] [Accepted: 10/25/2006] [Indexed: 10/23/2022]
Abstract
Thin polymer films with the ability of both drug release and protein adsorption resistance were formed on silicon substrates and silica particles. The films were made of a block copolymer of poly(N-isopropylacrylamide) (p(AAm)) that can load and release drugs and poly(2-methoxyethyl methacrylate) (p(MEMA)) that can suppress protein adsorption. Aspirin and bovine serum albumin were respectively used as model substances for testing the abilities of the films to load and release drugs and to suppress protein adsorption. The films were immersed in a phosphate buffer saline (pH 7.4) for 100 days to evaluate their water resistance. The experimental results showed that the films have both drug release and protein adsorption resistance and are highly stable against PBS.
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Affiliation(s)
- Tatsuya Tsukagoshi
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, 12-1 Ichigaya-Funagawara, Shinjuku-ku, Tokyo 162-0826, Japan
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27
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Liu H, Lin J, Roy K. Effect of 3D scaffold and dynamic culture condition on the global gene expression profile of mouse embryonic stem cells. Biomaterials 2006; 27:5978-89. [PMID: 16824594 DOI: 10.1016/j.biomaterials.2006.05.053] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2006] [Accepted: 05/19/2006] [Indexed: 10/24/2022]
Abstract
We have previously demonstrated that mouse embryonic stem (ES) cells differentiated on three-dimensional (3D), highly porous, tantalum-based scaffolds (Cytomatrixtrade mark) have significantly higher hematopoietic differentiation efficiency than those cultured under conventional two-dimensional (2D) tissue culture conditions. In addition, ES cell-seeded scaffolds cultured inside spinner bioreactors showed further enhancement in hematopoiesis compared to static conditions. In the present study, we evaluated how these various biomaterial-based culture conditions, e.g. 2D vs. 3D scaffolds and static vs. dynamic, influence the global gene expression profile of differentiated ES cells. We report that compared to 2D tissue culture plates, cells differentiated on porous, Cytomatrixtrade mark scaffolds possess significantly higher expression levels of extracellular matrix (ECM)-related genes, as well as genes that regulate cell growth, proliferation and differentiation. In addition, these differences in gene expression were more pronounced in 3D dynamic culture compared to 3D static culture. We report specific genes that are either uniquely expressed under each condition or are quantitatively regulated, i.e. over expressed or inhibited by a specific culture environment. We conclude that that biomaterial-based 3D cultures, especially under dynamic conditions, might favor efficient hematopoietic differentiation of ES cells by stimulating increased expression of specific ECM proteins, growth factors and cell adhesion related genes while significantly down-regulating genes that act to inhibit expression of these molecules.
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Affiliation(s)
- Hui Liu
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
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28
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Pan CJ, Tang JJ, Weng YJ, Wang J, Huang N. Preparation, characterization and anticoagulation of curcumin-eluting controlled biodegradable coating stents. J Control Release 2006; 116:42-9. [PMID: 17046093 DOI: 10.1016/j.jconrel.2006.08.023] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2006] [Revised: 08/10/2006] [Accepted: 08/29/2006] [Indexed: 11/24/2022]
Abstract
Curcumin is pharmaceutically active in many ways, having properties including anticoagulation, anti-proliferation, anti-inflammatory, and may be used to fabricate drug-eluting stents to treat in-stent restenosis after stent implantation. Here we describe our investigations of curcumin-eluting PLGA coatings formed using the biodegradable polymer PLGA (polylactic acid-co-glycolic acid) as drug carrier and uniformly fabricated on the surface of 316L stainless steel stents by an ultrasonic spray method. Three doses were explored--low dose ( approximately 140 microg per stent or 115 microg/cm(2)), moderate dose ( approximately 280 microg per stent or 230 microg/cm(2)), and high dose ( approximately 490 microg per stent or 408 microg/cm(2)). Pre- and post-expansion morphologies of the stent coating were examined by optical microscopy (OM) and scanning electron microscopy (SEM), indicating that the coating not only was very smooth and uniform but also had the ability to withstand the compressive and tensile strains imparted without cracking from the stent during the expansion process. Atomic force microscopy (AFM) images indicated the topography of the PLGA-only and moderate dose curcumin-eluting stent that showed an average roughness below 1 nm; no drug particles could be seen on the stent surface, indicating that curcumin can be mixed with PLGA at the molecular level using an ultrasonic atomization spray method. The structure of the coating films was characterized by Fourier Transform Infrared (FTIR) spectroscopy and X-ray electron spectroscopy (XPS), with results suggesting that there was no chemical reaction between curcumin and the drug. The results of in vitro measurements of drug release from curcumin-eluting stents showed that all the curcumin-eluting stents studied exhibited a nearly linear sustained-release profile with no significant burst releases within the measurement period. The in vitro anticoagulation behavior of curcumin-eluting stents was investigated by static platelet adhesion and APTT (activated partial thromboplastin time) tests, revealing that the anticoagulation properties of curcumin-eluting stents are superior to those for stainless steel stents and PLGA-only-coated stents. The anticoagulation behavior of curcumin stents improved significantly as the drug dose was increased.
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Affiliation(s)
- Ch J Pan
- Key Laboratory for Advanced Technologies of Materials, The Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
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29
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Abstract
PURPOSE OF REVIEW This review covers recent developments in microarray studies in the field of atherogenesis research. RECENT FINDINGS During the past year microarrays have been applied to the analysis of pathogenic mechanisms of several atherosclerosis risk factors, including ageing, hypertension, obesity, and cytomegalovirus infection. In addition, gene expression patterns during the development of in-stent restenosis have been examined. Several studies have also explored the pleiotropic effects of statin therapy. As a technical improvement, the combination of laser microdissection with microarrays in human samples has been reported. SUMMARY Microarray analyses have given important new information about atherogenesis. It is anticipated that microarray studies will significantly contribute to further discoveries in the field.
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Affiliation(s)
- Tiina T Tuomisto
- Department of Biotechnology and Molecular Medicine, AI Virtanen Institute, Kuopio University Hospital, Kuopio, Finland
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30
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Abstract
Atherosclerosis and its clinical manifestations are the leading cause of death in Western countries. Atherosclerosis is a multifactorial disease characterized by endothelial dysfunction, smooth muscle cell (SMC) proliferation and migration, inflammation, lipid and matrix accumulation and thrombus formation. Multiple genetic and environmental features and interactions between these factors influence the disease process. To understand fundamental pathobiological mechanisms in atherogenesis and to develop and target new therapies, information on genetic factors (atherogenetics), gene expression patterns (atherogenomics) and protein expression patterns (atheroproteomics) are needed. This review will summarize current knowledge in these areas of atherosclerosis research with a special emphasis on microarray technology.
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Affiliation(s)
- Tiina T Tuomisto
- Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute, Kuopio University, Kuopio, Finland
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