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Bian Y, Song D, Fu Z, Jiang C, Xu C, Zhang L, Wang K, Wang S, Sun D. Carboxyl PEGylation of magnetic nanoparticles as antithrombotic and thrombolytic agents by calcium binding. J Colloid Interface Sci 2023; 638:672-685. [PMID: 36780849 DOI: 10.1016/j.jcis.2023.01.129] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/05/2023] [Accepted: 01/26/2023] [Indexed: 02/10/2023]
Abstract
Known to be biocompatible and hemocompatible, polyethylene glycol (PEG) has been widely used as anti-fouling coating of biomaterials. Nanoparticles coated with functionalized PEG were also investigated for their nano-cell interactions, but seldomly on the coagulation system, especially with platelets. Both experiments and molecular dynamic simulations indicate that terminal carboxylation of PEG promotes its binding with calcium, especially in the ionized form, which makes it potential anticoagulants. Further, the carboxyl PEGylated magnetic nanoparticle (HOOC-PEG2000-MNP) exhibits significantly increased anticoagulant and antiplatelet properties, by entering the open canalicular system (OCS) of human platelets and binding with the cytoplasmic calcium ions. HOOC-PEG2000-MNP also acts as effective thrombolytic agents in dissolving mature blood clots under oscillating magnetic field both in vitro and in vivo. Therefore, the carboxyl PEGylated magnetic nanoparticles are prototype agents for antithrombotic and thrombolytic therapies and provide a versatile platform for targeted and effective treatments of acute cardiovascular diseases.
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Affiliation(s)
- Yingxin Bian
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Danhong Song
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Zejun Fu
- Department of Physiology and Pathophysiology, Shanghai Key Laboratory of Bioactive Small Molecules, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Chao Jiang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Chen Xu
- Department of Physiology and Pathophysiology, Shanghai Key Laboratory of Bioactive Small Molecules, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Lei Zhang
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China.
| | - Kun Wang
- School of Pharmaceutical Sciences, Wenzhou Medical College, University Town, Chashan, Wenzhou 325035, China.
| | - Shujun Wang
- Department of Blood Transfusion, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China.
| | - Dongping Sun
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China.
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Edwards JV, Prevost NT, Cintron MS. A Comparison of Hemostatic Activities of Zeolite-Based Formulary Finishes on Cotton Dressings. J Funct Biomater 2023; 14:jfb14050255. [PMID: 37233365 DOI: 10.3390/jfb14050255] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/22/2023] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
The need for affordable effective prehospital hemostatic dressings to control hemorrhage has led to an increased interest in new dressing design approaches. Here we consider the separate components of fabric, fiber, and procoagulant nonexothermic zeolite-based formulations on design approaches to accelerated hemostasis. The design of the fabric formulations was based on incorporation of zeolite Y as the principal procoagulant, with calcium and pectin to adhere and enhance the activity. Unbleached nonwoven cotton when combined with bleached cotton displays enhanced properties related to hemostasis. Here, we compare sodium zeolite with ammonium zeolite formulated on fabrics utilizing pectin with pad versus spray-dry-cure and varied fiber compositions. Notably, ammonium as a counterion resulted in shorter times to fibrin and clot formation comparable to the procoagulant standard. The time to fibrin formation as measured by thromboelastography was found to be within a range consistent with modulating severe hemorrhage control. The results indicate a correlation between fabric add-on and accelerated clotting as measured by both time to fibrin and clot formation. A comparison between the time to fibrin formation in calcium/pectin formulations and pectin alone revealed an enhanced clotting effect with calcium decreasing by one minute the time to fibrin formation. Infra-red spectra were employed to characterize and quantify the zeolite formulations on the dressings.
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Affiliation(s)
- J Vincent Edwards
- Southern Regional Research Center, United States Department of Agriculture (USDA), Agricultural Research Service, New Orleans, LA 70124, USA
| | - Nicolette T Prevost
- Southern Regional Research Center, United States Department of Agriculture (USDA), Agricultural Research Service, New Orleans, LA 70124, USA
| | - Michael Santiago Cintron
- Southern Regional Research Center, United States Department of Agriculture (USDA), Agricultural Research Service, New Orleans, LA 70124, USA
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Edwards JV, Prevost N, Yager D, Nam S, Graves E, Santiago M, Condon B, Dacorta J. Antimicrobial and Hemostatic Activities of Cotton-Based Dressings Designed to Address Prolonged Field Care Applications. Mil Med 2021; 186:116-121. [PMID: 33499453 DOI: 10.1093/milmed/usaa271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/24/2020] [Accepted: 09/09/2020] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION Developing affordable and effective hemostatic and antimicrobial wound dressings for prolonged field care (PFC) of open wounds is of interest to prevent infection, to prevent sepsis, and to conserve tissue viability. The need for an effective hemostatic dressing that is also antimicrobial is required of a hemostatic dressing that can be left in place for extended periods (days). This is particularly important in light of the existence of pathogens that have coagulopathy properties. Thus, dressings that provide effective hemostasis and reduction in the frequency of dressing changes, whereas exerting robust antimicrobial activity are of interest for PFC. Highly cleaned and sterile unbleached cotton has constituents not found in bleached cotton that are beneficial to the hemostatic and inflammatory stages of wound healing. Here, we demonstrate two approaches to cotton-based antimicrobial dressings that utilize the unique components of the cotton fiber with simple modification to confer a high degree of hemostatic and antimicrobial efficacy. METHODS Spun bond nonwoven unbleached cotton was treated using traditional pad dry cure methods to add ascorbic acid, zeolite (NaY) with pectin, calcium chloride, and sodium carbonate/calcium chloride. Similarly, nanosilver-embedded cotton fiber was blended with pristine cotton fibers at various weight ratios to produce hydroentangled nonwoven fabrics. The resulting treated fabrics were assessed for hemostasis using thromboelastographic clotting assays and antimicrobial activity utilizing American Association of Textile Chemists and Colorists 100. RESULTS Zeolite-containing dressings possessed significant hemostatic activity, whereas ascorbic acid- and silver-containing dressings reduced Gram-positive and Gram-negative organism numbers by several logs. CONCLUSION Based on this study, a multilayered hemostatic dressing with antimicrobial properties is envisioned. This dressing would be safe, would be economical, and have a stable shelf-life that would be conducive for using PFC.
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Affiliation(s)
- J Vincent Edwards
- Southern Regional Research Center - ARS, USDA, New Orleans, LA 70124, USA
| | - Nicolette Prevost
- Southern Regional Research Center - ARS, USDA, New Orleans, LA 70124, USA
| | - Dorne Yager
- Plastic and Reconstructive Surgery, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Sunghyun Nam
- Southern Regional Research Center - ARS, USDA, New Orleans, LA 70124, USA
| | - Elena Graves
- Southern Regional Research Center - ARS, USDA, New Orleans, LA 70124, USA
| | - Michael Santiago
- Southern Regional Research Center - ARS, USDA, New Orleans, LA 70124, USA
| | - Brian Condon
- Southern Regional Research Center - ARS, USDA, New Orleans, LA 70124, USA
| | - Joseph Dacorta
- Research & Development, H&H Medical, Inc., Williamsburg, VA 23040, USA
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In vitro hemocompatibility testing of medical devices. Thromb Res 2020; 195:146-150. [DOI: 10.1016/j.thromres.2020.07.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/18/2020] [Accepted: 07/10/2020] [Indexed: 12/14/2022]
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Edwards JV, Graves E, Prevost N, Condon B, Yager D, Dacorta J, Bopp A. Development of a Nonwoven Hemostatic Dressing Based on Unbleached Cotton: A De Novo Design Approach. Pharmaceutics 2020; 12:pharmaceutics12070609. [PMID: 32629845 PMCID: PMC7407894 DOI: 10.3390/pharmaceutics12070609] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 06/17/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023] Open
Abstract
Minimally processed greige (unbleached) cotton fibers demonstrate enhanced clotting relative to highly processed United States Pharmacopeia (USP) type 7 bleached cotton gauze. This effect is thought to be due to the material surface polarity. We hypothesized that a textile could be constructed, conserving the hemostasis-accelerating properties of greige cotton, while maintaining structural integrity and improving absorbance. Spun bond nonwovens of varying surface polarity were designed and prepared based on ratios of greige cotton/bleached cotton/polypropylene fibers. A thromboelastographic analysis was performed on fibrous samples in citrated blood to evaluate the rate of fibrin and clot formation. Lee White clotting times were obtained to assess the material’s clotting activity in platelet fresh blood. An electrokinetic analysis of samples was performed to analyze for material surface polarity. Hemostatic properties varied with composition ratios, fiber density, and fabric fenestration. The determinations of the surface polarity of cotton fabrics with electrokinetic analysis uncovered a range of surface polarities implicated in fabric-initiated clotting; a three-point design approach was employed with the combined use of thromboelastography, thrombin velocity index, Lee White clotting, and absorption capacity determinations applied to fabric structure versus function analysis. The resulting analysis demonstrates that greige cotton may be utilized, along with hydrophilic and hydrophobic fibers, to improve the initiation of fibrin formation and a decrease in clotting time in hemostatic dressings suitable to be commercially developed. Hydroentanglement is an efficient and effective process for imparting structural integrity to cotton-based textiles, while conserving hemostatic function.
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Affiliation(s)
- J. Vincent Edwards
- Southern Regional Research Center, New Orleans, LA 70124, USA; (E.G.); (N.P.); (B.C.)
- Correspondence: ; Tel.: +1-504-284-4360
| | - Elena Graves
- Southern Regional Research Center, New Orleans, LA 70124, USA; (E.G.); (N.P.); (B.C.)
| | - Nicolette Prevost
- Southern Regional Research Center, New Orleans, LA 70124, USA; (E.G.); (N.P.); (B.C.)
| | - Brian Condon
- Southern Regional Research Center, New Orleans, LA 70124, USA; (E.G.); (N.P.); (B.C.)
| | - Dorne Yager
- Plastic and Reconstructive Surgery, Virginia Commonwealth University, Richmond, VA 23111, USA;
| | | | - Alvin Bopp
- Department of Natural Sciences, Southern University at New Orleans, New Orleans, LA 70126, USA;
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6
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Effect of tannic acid on blood components and functions. Colloids Surf B Biointerfaces 2019; 184:110505. [DOI: 10.1016/j.colsurfb.2019.110505] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/06/2019] [Accepted: 09/11/2019] [Indexed: 02/07/2023]
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Peptide-immobilized starch/PEG sponge with rapid shape recovery and dual-function for both uncontrolled and noncompressible hemorrhage. Acta Biomater 2019; 99:220-235. [PMID: 31449930 DOI: 10.1016/j.actbio.2019.08.039] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 08/07/2019] [Accepted: 08/21/2019] [Indexed: 01/19/2023]
Abstract
It is challenging for traditional hemostatic sponges to meet the clinic demand for both uncontrolled and noncompressible hemorrhage. With the aim to develop a rapid shape recovery material with both active and passive hemostatic performance, a dual-functional hemostatic sponge (TRAP-Sp) with a macroporous structure and good mechanical properties for controlling massive and noncompressible hemorrhage was prepared by chemically immobilizing thrombin-receptor-agonist-peptide (TRAP) onto a starch/polyethylene glycol (PEG) sponge. The TRAP2-Sp1 showed the best hemostatic performance among all samples in both rat artery uncontrollable hemorrhage and liver defect noncompressible hemorrhage models. When analyzing the hemostatic mechanism of TRAP-Sp, the high water absorption capacity of the sponge contributed to absorbing plasma, concentrating blood cells, and enhancing blood coagulation. After absorbing water, the shape-fixed TRAP-Sp with sufficient mechanical strength and high resilience can rapidly expand and apply pressure to the wound. TRAP immobilized on the sponge could activate the adhered platelets in an active pathway. Additionally, evaluation of cytotoxicity, hemolysis, and histology further highlighted the adequate biocompatibility of TRAP-Sp. With excellent hemostatic performance and biosafety, this sponge could be a potential candidate as a topical hemostatic agent for uncontrolled and noncompressible hemorrhage. STATEMENT OF SIGNIFICANCE: There is a need for innovative hemostatic materials for both uncontrolled and noncompressible hemorrhage. This manuscript describes a rapid shape recovery hemostatic sponge with both active and passive hemostatic performances synthesized by foaming technique, cross-linking reaction, and chemical immobilization of thrombin-receptor-agonist-peptide (TRAP). On contact with blood, the shape-fixed sponge can not only rapidly recover its original shape and concentrate platelets and RBCs but also activate the adhered platelets efficiently. The dual-functional sponge has excellent hemostatic efficacy in rat femoral artery hemorrhage and can control noncompressible hemorrhage in penetrating liver wound. Thus, we believe that this sponge could be a potential candidate as a topical hemostatic agent for uncontrolled and noncompressible hemorrhage.
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Roberts TR, Leslie DC, Cap AP, Cancio LC, Batchinsky AI. Tethered-liquid omniphobic surface coating reduces surface thrombogenicity, delays clot formation and decreases clot strength ex vivo. J Biomed Mater Res B Appl Biomater 2019; 108:496-502. [PMID: 31069955 DOI: 10.1002/jbm.b.34406] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/12/2019] [Accepted: 04/25/2019] [Indexed: 12/16/2022]
Abstract
Hemocompatible materials for extracorporeal life support (ECLS) technology are investigated to mitigate thrombotic complications associated with this therapy. A promising solution is an omniphobic bilayer coating, tethered liquid perfluorocarbon (TLP), which utilizes an immobilized tether to anchor a mobile, liquid surface lubricant that prevents adhesion of blood components to the substrate. In this study, we investigated the effects of TLP on real-time clot formation using thromboelastography (TEG). TLP was applied to TEG cups, utilizing perfluorodecalin (PFD) or FluorLube63 as the liquid layer, and compared to uncoated cups. Human blood (n = 10) was added to cups; and TEG parameters (R, K, α-angle, MA, LY30, LY60) and adherent thrombus weight were assessed. TLP decreased clot amplification (α-angle), clot strength (MA), and adherent clot weight (p < .0001). These effects were greater with FluorLube63 versus PFD (α-angle p < .0001; MA p = .0019; clot weight p < .0001). Reaction time (R) was longer in TLP-coated cups versus control cups with liquid lubricant added (p = .0377). Percent fibrinolysis (LY30 and LY60) was greater in the TLP versus controls at LY30 (p < .0001), and in FluoroLube63 versus controls at LY60 (p = .0021). TLP significantly altered clot formation, exerting antithrombogenic effects. This reduction in surface thrombogenicity supports TLP as a candidate for improved biocompatibility of ECLS materials, pending further validation with exposure to shear stress.
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Affiliation(s)
- Teryn R Roberts
- Multi-Organ Support Technology, U.S. Army Institute of Surgical Research, San Antonio, Texas.,The Geneva Foundation, Tacoma, Washington.,Morsani College of Medicine, University of South Florida, Tampa, Florida
| | | | - Andrew P Cap
- Multi-Organ Support Technology, U.S. Army Institute of Surgical Research, San Antonio, Texas
| | - Leopoldo C Cancio
- Multi-Organ Support Technology, U.S. Army Institute of Surgical Research, San Antonio, Texas
| | - Andriy I Batchinsky
- Multi-Organ Support Technology, U.S. Army Institute of Surgical Research, San Antonio, Texas.,The Geneva Foundation, Tacoma, Washington.,Morsani College of Medicine, University of South Florida, Tampa, Florida.,Department of Translational Medicine, University of the Incarnate Word, San Antonio, Texas
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Liu Y, Rao L, Zhang H, Cen Y, Cheng K. Conjugation of vitamin E-TPGS and guar gum to carry borneol for enhancing blood–brain barrier permeability. J Biomater Appl 2018; 33:590-598. [PMID: 30208770 DOI: 10.1177/0885328218799551] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herb borneol is usually used in clinics for the treatment of central nervous system illness, for its ability of blood–brain barrier permeability, although its poor water solubility and poor bioavailability limit its clinical application to some degree. In this study, we developed a novel nanoparticle combining the benefits of vitamin E d-ɑ-tocopheryl poly(ethylene glycol) succinate (E-TPGS) (or TPGS) and guar gum to get TPGS-g-guar gum as a drug delivery system to carry borneol, which could improve the solubility of borneol and increase the drug-loading capacity efficiently. The results showed that TPGS-g-guar gum nanoparticles delivery system was suitable to carry borneol and release the drug effectively, and TPGS-g-guar gum/borneol nanoparticles would be a potential platform for improving the treatment of central nervous system illness and cerebrovascular disease.
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Affiliation(s)
- Yude Liu
- Department of Cardiovascular, The First Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China
| | - Lian Rao
- Department of Cardiovascular, The First Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China
| | - Hongguan Zhang
- Department of Cardiovascular, The First Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China
| | - Yanyou Cen
- Department of Cardiovascular, The First Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China
| | - Kaili Cheng
- Department of Cardiovascular, The First Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, China
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Mu S, Li G, Liang Y, Wu T, Ma D. Hyperbranched polyglycerol-modified graphene oxide as an efficient drug carrier with good biocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:639-646. [DOI: 10.1016/j.msec.2017.04.145] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 12/21/2022]
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Ajdari N, Vyas C, Bogan SL, Lwaleed BA, Cousins BG. Gold nanoparticle interactions in human blood: a model evaluation. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1531-1542. [DOI: 10.1016/j.nano.2017.01.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 12/19/2016] [Accepted: 01/31/2017] [Indexed: 12/01/2022]
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Brockman KS, Kizhakkedathu JN, Santerre JP. Hemocompatibility studies on a degradable polar hydrophobic ionic polyurethane (D-PHI). Acta Biomater 2017; 48:368-377. [PMID: 27818307 DOI: 10.1016/j.actbio.2016.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/23/2016] [Accepted: 11/02/2016] [Indexed: 11/15/2022]
Abstract
Biomaterial blood compatibility is a complex process that involves four key pathways, including the coagulation cascade, the complement system, platelets, and leukocytes. While many studies have addressed the initial contact of blood with homopolymeric (e.g. Teflon) or simple copolymeric (e.g. Dacron) biomaterials, relatively less attention has been given to investigating blood coagulation with respect to complex copolymeric systems containing well defined and diverse function. The current study sought to assess the hemocompatibility of a complex polyurethane (PU) containing a unique combination of polar, hydrophobic, and ionic domains (D-PHI). This included a whole blood (WB) study, followed by tests on the intrinsic and extrinsic coagulation pathways, complement activation, platelet activation, and an assessment of the effect of leukocytes on platelet-biomaterial interactions. A small increase in blood clot formation was observed on D-PHI in WB; however, there was no significant increase in clotting via the intrinsic coagulation cascade. No significant increase in platelet adhesion and only a very slight increase in platelet activation were observed in comparison to albumin-coated substrates (negative control). D-PHI showed mild complement activation and increased initiation of the extrinsic pathway of coagulation, along with the observation that leukocytes were important in mediating platelet-biomaterial interactions. It is proposed that complement is responsible for activating coagulation by inciting leukocytes to generate tissue factor (TF), which causes extrinsic pathway activation. This low level of blood clotting on D-PHI's surface may be necessary for the beneficial wound healing of vascular constructs that has been previously reported for this material. STATEMENT OF SIGNIFICANCE Understanding the hemocompatibility of devices intended for blood-contacting applications is important for predicting device failure. Hemocompatibility is a complex parameter (affected by at least four different mechanisms) that measures the level of thrombus generation and immune system activation resulting from blood-biomaterial contact. The complexity of hemocompatibility implies that homopolymers are unlikely to solve the clotting challenges that face most biomaterials. Diversity in surface chemistry (containing hydrophobic, ionic, and polar domains) obtained from engineered polyurethanes can lead to favourable interactions with blood. The current research considered the effect of a highly functionalized polyurethane biomaterial on all four mechanisms in order to provide a comprehensive in vitro measure of the hemocompatibility of this unique material and the important mechanisms at play.
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Affiliation(s)
- Kathryne S Brockman
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3R5, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | - Jayachandran N Kizhakkedathu
- Department of Pathology and Laboratory Medicine and Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J Paul Santerre
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3R5, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada; Faculty of Dentistry, University of Toronto, Toronto, Ontario M5G 1G6, Canada.
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Huang Y, Feng L, Zhang Y, He L, Wang C, Xu J, Wu J, Kirk TB, Guo R, Xue W. Hemostasis mechanism and applications of N-alkylated chitosan sponge. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuchen Huang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Guangzhou 510632 China
- Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Longbao Feng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Guangzhou 510632 China
- Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Yi Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Guangzhou 510632 China
- Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Liumin He
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Guangzhou 510632 China
- Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Changyong Wang
- Department of Advanced Interdisciplinary Studies; Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences; Beijing 100850 China
| | - Jiake Xu
- School of Pathology and Laboratory Medicine; University of Western Australia; Perth WA 6009 Australia
| | - Jianping Wu
- 3D Imaging and Bioengineering Laboratory, the Department of Mechanical Engineering; Curtin University; Perth WA Australia
| | - Thomas Brett Kirk
- 3D Imaging and Bioengineering Laboratory, the Department of Mechanical Engineering; Curtin University; Perth WA Australia
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Guangzhou 510632 China
- Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Guangzhou 510632 China
- Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institute; Guangzhou 510632 China
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Simak J, De Paoli S. The effects of nanomaterials on blood coagulation in hemostasis and thrombosis. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 9. [PMID: 28078811 DOI: 10.1002/wnan.1448] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 10/19/2016] [Accepted: 11/23/2016] [Indexed: 01/16/2023]
Abstract
The blood coagulation balance in the organism is achieved by the interaction of the blood platelets (PLTs) with the plasma coagulation system (PCS) and the vascular endothelial cells. In healthy organism, these systems prevent thrombosis and, in events of vascular damage, enable blood clotting to stop bleeding. The dysregulation of hemostasis may cause serious thrombotic and/or hemorrhagic pathologies. Numerous engineered nanomaterials are being investigated for biomedical purposes and are unavoidably exposed to the blood. Also, nanomaterials may access vascular system after occupational, environmental, or other types of exposure. Thus, it is essential to evaluate the effects of engineered nanomaterials on hemostasis. This review focuses on investigations of nanomaterial interactions with the blood components involved in blood coagulation: the PCS and PLTs. Particular emphases include the pathophysiology of effects of nanomaterials on the PCS, including the kallikrein-kinin system, and on PLTs. Methods for investigating these interactions are briefly described, and a review of the most important studies on the interactions of nanomaterials with plasma coagulation and platelets is provided. WIREs Nanomed Nanobiotechnol 2017, 9:e1448. doi: 10.1002/wnan.1448 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Jan Simak
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Silvia De Paoli
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
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Modification of a commercial thromboelastography instrument to measure coagulation dynamics with three-dimensional biomaterials. Biointerphases 2016; 11:029602. [PMID: 27126596 DOI: 10.1116/1.4948339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Three-dimensional synthetic constructs with complex geometries have immense potential for use in a multitude of blood-contacting applications. Understanding coagulation phenomena is arguably the most critical aspect for applications involving synthetic biomaterials; however, real-time evaluation of the clot formation while interfacing with these materials is difficult to achieve in a reproducible and robust manner. Here, work representing first steps toward addressing this deficit is presented, wherein modified consumables for a clinical instrument (a Thromboelastograph(®)) have been fabricated. Thromboelastography (TEG) measures viscoelastic properties throughout clot formation and therefore provides clinically relevant coagulation measurements in real time (i.e., kinetics and strength of clot formation). Through our modification, TEG consumables can readily accommodate three-dimensional materials (e.g., those for regenerative tissue applications). The authors performed proof-of-concept experiments using polymer scaffolds with a range of surface properties and demonstrated that variations in surface properties resulted in differences in blood plasma coagulation dynamics. For example, the maximum rate of thrombus generation ranged from 22.2 ± 2.2 (dyn/cm(2))/s for fluorocarbon coated scaffolds to 8.7 ± 1.0 (dyn/cm(2))/s for nitrogen-containing scaffolds. Through this work, the ability to make real-time coagulation activity measurements during constant coagulation factor interface with biomedically relevant materials is demonstrated.
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16
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Everett W, Scurr DJ, Rammou A, Darbyshire A, Hamilton G, de Mel A. A Material Conferring Hemocompatibility. Sci Rep 2016; 6:26848. [PMID: 27264087 PMCID: PMC4893622 DOI: 10.1038/srep26848] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 05/09/2016] [Indexed: 12/15/2022] Open
Abstract
There is a need for biomimetic materials for use in blood-contacting devices. Blood contacting surfaces maintain their patency through physico-chemical properties of a functional endothelium. A poly(carbonate-urea) urethane (PCU) is used as a base material to examine the feasibility of L-Arginine methyl ester (L-AME) functionalized material for use in implants and coatings. The study hypothesizes that L-AME, incorporated into PCU, functions as a bioactive porogen, releasing upon contact with blood to interact with endothelial nitric oxide synthase (eNOS) present in blood. Endothelial progenitor cells (EPC) were successfully cultured on L-AME functionalized material, indicating that L-AME -increases cell viability. L-AME functionalized material potentially has broad applications in blood-contacting medical devices, as well as various other applications requiring endogenous up-regulation of nitric oxide, such as wound healing. This study presents an in-vitro investigation to demonstrate the novel anti-thrombogenic properties of L-AME, when in solution and when present within a polyurethane-based polymer.
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Affiliation(s)
- William Everett
- Centre for Nanotechnology & Regenerative Medicine, University College London, London, UK
| | - David J Scurr
- Interface and Surface Analysis Centre, Boots Science Building, University of Nottingham, University Park, Nottingham, UK
| | - Anna Rammou
- Centre for Nanotechnology & Regenerative Medicine, University College London, London, UK
| | - Arnold Darbyshire
- Centre for Nanotechnology & Regenerative Medicine, University College London, London, UK
| | | | - Achala de Mel
- Centre for Nanotechnology & Regenerative Medicine, University College London, London, UK
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17
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Zhou X, Zheng Q, Wang C, Xu J, Wu JP, Kirk TB, Ma D, Xue W. Star-Shaped Amphiphilic Hyperbranched Polyglycerol Conjugated with Dendritic Poly(l-lysine) for the Codelivery of Docetaxel and MMP-9 siRNA in Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12609-12619. [PMID: 27153187 DOI: 10.1021/acsami.6b01611] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The drug/gene codelivery is a promising strategy for cancer treatment. Herein, to realize the codelivery of docetaxel and MMP-9 siRNA plasmid efficiently into tumor cells, a star-shaped amphiphilic copolymer consisting of hyperbranched polyglycerol derivative (HPG-C18) and dendritic poly(l-lysine) (PLLD) was synthesized by the click reaction between azido-modified HPG-C18 and propargyl focal point PLLD. The obtained HPG-C18-PLLD could form the nanocomplexes with docetaxel and MMP-9, and the complexes showed good gene delivery ability in vitro by inducing an obvious decrease in MMP-9 protein expression in MCF-7 cells. The apoptosis assay showed that the complex could induce a more significant apoptosis to breast cancer cells than that of docetaxel or MMP-9 used alone. In vivo assay indicated that the codelivery strategy displayed a better effect on tumor inhibition. Moreover, HPG-C18-PLLD displayed lower toxicity as well as better blood compatibility compared to polyethylenimine PEI-25k, which may be the result of that HPG-C18-PLLD showed the comparative MMP-9 delivery ability in vivo compared with PEI-25k even if it showed the slight lower transfection efficiency in vitro. Therefore, HPG-C18-PLLD is a safe and effective carrier for the codelivery of drug/gene, which should be encouraged in tumor therapy.
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Affiliation(s)
- Xiaoyan Zhou
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University , Guangzhou 510632, China
| | - Qianqian Zheng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University , Guangzhou 510632, China
| | - Changyong Wang
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences , Beijing 100850, China
| | - Jiake Xu
- The School of Pathology and Laboratory Medicine, University of Western Australia , Perth, Australia
| | - Jian-Ping Wu
- 3D Imaging and Bioengineering Laboratory, Department of Mechanical Engineering, Curtin University , Perth, Australia
| | - Thomas Brett Kirk
- 3D Imaging and Bioengineering Laboratory, Department of Mechanical Engineering, Curtin University , Perth, Australia
| | - Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University , Guangzhou 510632, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University , Guangzhou 510632, China
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18
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Guo C, Hu J, Kao L, Pan D, Luo K, Li N, Gu Z. Pepetide Dendron-Functionalized Mesoporous Silica Nanoparticle-Based Nanohybrid: Biocompatibility and Its Potential as Imaging Probe. ACS Biomater Sci Eng 2016; 2:860-870. [DOI: 10.1021/acsbiomaterials.6b00093] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
| | - Jiani Hu
- Department
of Radiology, Wayne State University, Detroit, Michigan 48201, United States
| | - Leslie Kao
- Department
of Radiology, Wayne State University, Detroit, Michigan 48201, United States
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19
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Zhou X, Lin A, Yuan X, Li H, Ma D, Xue W. Glucose-sensitive and blood-compatible nanogels for insulin controlled release. J Appl Polym Sci 2016. [DOI: 10.1002/app.43504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoyan Zhou
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Anhua Lin
- Department of Endocrinology; Jiangxi Provincial People's Hospital; Nanchang 330006 China
| | - Xinxin Yuan
- Department of Endocrinology; Jiangxi Provincial People's Hospital; Nanchang 330006 China
| | - Hui Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
- Institute of Life and Health Engineering Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes; Jinan University; Guangzhou 510632 China
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20
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Liu X, Mo Y, Liu X, Guo R, Zhang Y, Xue W, Zhang Y, Wang C, Ramakrishna S. Synthesis, characterisation and preliminary investigation of the haemocompatibility of polyethyleneimine-grafted carboxymethyl chitosan for gene delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:173-82. [PMID: 26952412 DOI: 10.1016/j.msec.2016.01.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/11/2016] [Accepted: 01/20/2016] [Indexed: 12/24/2022]
Abstract
The development of safe and efficient gene carriers is the key to the clinical success of gene therapy. In the present study, carboxymethyl chitosan (CMCS) was prepared by chitosan (CS) alkalisation and carboxymethylation reactions. Then polyethyleneimine (PEI) was grafted to the backbone of CMCS by an amidation reaction. The CMCS-PEI copolymer showed strong complexation capability with DNA to form nanoparticles, and achieved lower cytotoxicity and higher transfection efficiency compared with PEI (25 kDa) towards 293T and 3T3 cells. Moreover, the haemocompatibility of the CMCS-PEI copolymer was investigated through the aggregation, morphology and lysis of human red blood cells (RBCs), along with the impact on the clotting function with activated partial thromboplastin time (APTT), prothrombin time (PT) and thromboelastographic (TEG) assays. The results demonstrated that the CMCS-PEI copolymer with a concentration lower than 0.05 mg/mL had little impact on the aggregation, morphology or lysis of RBCs, or on blood coagulation. Therefore, the copolymer may be a strong alternative candidate as an effective and safe non-viral vector.
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Affiliation(s)
- Xuan Liu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Yunfei Mo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Xiaoyu Liu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Yi Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China; Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Yuanming Zhang
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Changyong Wang
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences, Beijing 100850, China
| | - Seeram Ramakrishna
- Guangdong-Hongkong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou 510632, China
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21
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Hu Q, Zhang Y, Wang C, Xu J, Wu J, Liu Z, Xue W. Hemocompatibility evaluation in vitro of methoxy polyethyleneglycol-polycaprolactone copolymer solutions. J Biomed Mater Res A 2016; 104:802-812. [PMID: 26481428 DOI: 10.1002/jbm.a.35594] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 10/15/2015] [Accepted: 10/16/2015] [Indexed: 12/27/2022]
Abstract
Amphiphilic block copolymer methoxy polyethyleneglycol-polycaprolactone (mPEG-PCL) has attracted interest in the biomedical field, due to its water solubility and biodegradability. Nevertheless, the blood safety of mPEG-PCL copolymers has not been investigated in detail. Because mPEG-PCL copolymers introduced in vivo would inevitably interact with blood tissue, an investigation of possible interactions of mPEG-PCL with key blood components is crucial. We studied the effects of two mPEG-PCL copolymer solutions on blood coagulation, the morphology and lysis of human red blood cells (RBCs), the structure of plasma fibrinogen, complement activation, and platelet aggregation. We found that higher concentrations of the mPEG-PCL copolymers impaired blood clotting, and the copolymers had little impact on the morphology or lysis of RBCs. From the spectroscopy results, the copolymers affected the local microstructure of fibrinogen. The copolymers significantly activated the complement system in a concentration-dependent way. At higher concentrations, the copolymers impaired platelet aggregation, which may have been mediated by an inhibition of the arachidonic acid pathway. These findings provide important information that may be useful for the molecular design and biomedical applications of mPEG-PCL copolymers. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 802-812, 2016.
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Affiliation(s)
- Qian Hu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, People's Republic of China
| | - Yi Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, People's Republic of China
| | - Changyong Wang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, People's Republic of China.,Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences, Beijing, People's Republic of China
| | - Jiake Xu
- The School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, Australia
| | - Jianping Wu
- 3D Imaging and Bioengineering, the Department of Mechanical Engineering, Curtin University, Perth, Australia
| | - Zonghua Liu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, People's Republic of China.,Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou, People's Republic of China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, People's Republic of China.,Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou, People's Republic of China
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22
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Zhao J, Farhatnia Y, Kalaskar DM, Zhang Y, Bulter PE, Seifalian AM. The influence of porosity on the hemocompatibility of polyhedral oligomeric silsesquioxane poly (caprolactone-urea) urethane. Int J Biochem Cell Biol 2015; 68:176-86. [DOI: 10.1016/j.biocel.2015.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 07/28/2015] [Accepted: 08/11/2015] [Indexed: 10/23/2022]
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23
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Zheng Q, Zhou X, Li H, Ma D, Xue W. Complex aggregates formed with a hyperbranched polyglycerol derivative for drug delivery. J Appl Polym Sci 2015. [DOI: 10.1002/app.42895] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Qianqian Zheng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Xiaoyan Zhou
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Hui Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
- Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes; Jinan University; Guangzhou 510632 China
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24
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Zeng X, Zhou X, Li M, Wang C, Xu J, Ma D, Xue W. Redox poly(ethylene glycol)-b-poly(L-lactide) micelles containing diselenide bonds for effective drug delivery. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:234. [PMID: 26395359 DOI: 10.1007/s10856-015-5573-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 09/16/2015] [Indexed: 06/05/2023]
Abstract
Bioreducible polymers have appeared as the ideal drug carriers for tumor therapy due to their properties of high stability in extracellular circulation and rapid drug release in intracellular reducing environment. Recently, the diselenide bond has emerged as a new reduction-sensitive linkage. In this work, the amphiphilic poly(ethylene glycol)-b-poly(L-lactide) containing diselenide bond has been synthesized and used to load anti-tumor drug, docetaxel (DTX), to form the redox micelles. It was found that the redox micelles showed a rapid response to glutataione (GSH), which resulted in a fast release of DTX in the presence of GSH. In contrast, <40 % of DTX was released from the micelles within 72 h under the normal condition (absence of GSH). The DTX-loaded redox micelles showed the significant inhibition effect to MCF-7 cells, and the cytotoxicity was dependent on the intracellular GSH concentrations. Moreover, considering the potentially clinical applications of the micelles through intravenous injection, the blood compatibility was also studied by the hemolysis analysis, activated partial thromboplastin time, prothrombin time and thromboelastography assays. These results confirmed that the redox micelles showed good blood safety, suggesting a potential application in tumor therapy.
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Affiliation(s)
- Xiaolong Zeng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Xiaoyan Zhou
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Mengyi Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Changyong Wang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Academy of Military Medical Sciences, Beijing, 100850, China
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, University of Western Australia, Perth, Australia
| | - Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China.
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China.
- Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Jinan University, Guangzhou, 510632, China.
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25
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Edwards JV, Graves E, Bopp A, Prevost N, Santiago M, Condon B. Electrokinetic and hemostatic profiles of nonwoven cellulosic/synthetic fiber blends with unbleached cotton. J Funct Biomater 2014; 5:273-87. [PMID: 25459983 PMCID: PMC4285407 DOI: 10.3390/jfb5040273] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/07/2014] [Accepted: 11/19/2014] [Indexed: 11/29/2022] Open
Abstract
Greige cotton contains waxes and pectin on the outer surface of the fiber that are removed when bleached, but these components present potential wound dressing functionality. Cotton nonwovens blended with hydrophobic and hydrophilic fibers including viscose, polyester, and polypropylene were assessed for clotting activity with thromboelastography (TEG) and thrombin production. Clotting was evaluated based on TEG measurements: R (time to initiation of clot formation), K (time from end of R to a 20 mm clot), α (rate of clot formation according to the angle tangent to the curve as K is reached), and MA (clot strength). TEG values correlate to material surface polarity as measured with electrokinetic parameters (ζplateau, Δζ and swell ratio). The material surface polarity (ζplateau) varied from −22 to −61 mV. K values and thrombin concentrations were found to be inversely proportional to ζplateau with an increase in material hydrophobicity. An increase in the swell ratios of the materials correlated with decreased K values suggesting that clotting rates following fibrin formation increase with increasing material surface area due to swelling. Clot strength (MA) also increased with material hydrophobicity. Structure/function implications from the observed clotting physiology induced by the materials are discussed.
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Affiliation(s)
- J Vincent Edwards
- USDA-ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
| | - Elena Graves
- USDA-ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
| | - Alvin Bopp
- USDA-ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
| | - Nicolette Prevost
- USDA-ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
| | - Michael Santiago
- USDA-ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
| | - Brian Condon
- USDA-ARS, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
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26
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Leung JM, Berry LR, Chan AKC, Brash JL. Surface modification of polydimethylsiloxane with a covalent antithrombin-heparin complex to prevent thrombosis. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:786-801. [PMID: 24735089 DOI: 10.1080/09205063.2014.907669] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
To prevent coagulation in contact with blood, polydimethylsiloxane (PDMS) was modified with an antithrombin-heparin (ATH) covalent complex using polyethylene glycol (PEG) as a linker/spacer. Using NHS chemistry, ATH was attached covalently to the distal chain end of the immobilized PEG linker. Surfaces were characterized by contact angle and X-ray photoelectron spectroscopy; attachment was confirmed by decrease in contact angles and an increase in nitrogen content as determined by X-ray photoelectron spectroscopy. Protein interactions in plasma were investigated using radiolabeled proteins added to plasma as tracers, and by immunoblotting of eluted proteins. Modification of PDMS with PEG alone was effective in reducing non-specific protein adsorption; attachment of ATH at the distal end of the PEG chains did not significantly affect protein resistance. It was shown that surfaces modified with ATH bound antithrombin selectively from plasma through the pentasaccharide sequence on the heparin moiety of ATH, indicating the ability of the ATH-modified surfaces to inhibit coagulation. Using thromboelastography, the effect of ATH modification on plasma coagulation was evaluated directly. It was found that initiation of coagulation was delayed and the time to clot was prolonged on PDMS modified with ATH/PEG compared to controls. For comparison, surfaces modified in a similar way with heparin were prepared and investigated using the same methods. The data suggest that the ATH-modified surfaces have superior anticoagulant properties compared to those modified with heparin.
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Affiliation(s)
- Jennifer M Leung
- a School of Biomedical Engineering , Hamilton , Ontario , Canada
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27
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Fu Y, Hu R, Li C, Wang Q, Liu Z, Xue W. Effects of poly(amidoamine) dendrimers on the structure and function of key blood components. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514521921] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Poly(amidoamine) dendrimers have a variety of promising biomedical applications; however, the biological safety of the dendrimers has not been well clarified. This study focuses on the effects of poly(amidoamine) dendrimers (G3, G4, G5, G5–OH) on the structure and function of key blood components, in order to elucidate the impacts of the dendrimers on the aggregation, morphology, lysis of human red blood cells, structural and conformational change as well as polymerization of fibrinogen, and the coagulation of blood tissue. The poly(amidoamine) dendrimers caused aggregation, morphological changes, and lysis of red blood cells, depending on the dendrimer concentration, generation, and surface functional groups. All the dendrimers induced fibrinogen structural and conformational changes, but only cationic dendrimers impaired fibrinogen polymerization ability at high concentrations. In addition, the cationic dendrimers inhibited the activity of clotting factors and fibrinogen in the coagulation of whole blood. Therefore, the surface functional groups, generation, and concentration of the dendrimers play important roles in affecting the structure and function of key blood components. These results provide a critical theoretical basis for the molecular design and clinical application of the poly(amidoamine) dendrimers.
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Affiliation(s)
- Yeyun Fu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, China
| | - Rushan Hu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, China
| | - Chenghua Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, China
| | - Qian Wang
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China
| | - Zonghua Liu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, China
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, Jinan University, Guangzhou, China
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, Jinan University, Guangzhou, China
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28
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Steuer H, Krastev R, Lembert N. Metallic oxide nanoparticles stimulate blood coagulation independent of their surface charge. J Biomed Mater Res B Appl Biomater 2013; 102:897-902. [DOI: 10.1002/jbm.b.33051] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 08/14/2013] [Accepted: 09/22/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Heiko Steuer
- NMI Technology Transfer GmbH; Markwiesenstrasse 55 72770 Reutlingen Germany
| | - Rumen Krastev
- NMI Natural and medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 72770 Reutlingen Germany
| | - Nicolas Lembert
- NMI Technology Transfer GmbH; Markwiesenstrasse 55 72770 Reutlingen Germany
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29
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Zhang W, Zhong D, Liu Q, Zhang Y, Li N, Wang Q, Liu Z, Xue W. Effect of chitosan and carboxymethyl chitosan on fibrinogen structure and blood coagulation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:1549-63. [DOI: 10.1080/09205063.2013.777229] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wei Zhang
- a Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering , Jinan University , Guangzhou , 510632 , China
| | - Dagen Zhong
- a Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering , Jinan University , Guangzhou , 510632 , China
| | - Quan Liu
- a Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering , Jinan University , Guangzhou , 510632 , China
| | - Yi Zhang
- a Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering , Jinan University , Guangzhou , 510632 , China
| | - Nan Li
- b Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes , Jinan University , Guangzhou , 510632 , China
| | - Qian Wang
- c Clinical Laboratory , Qilu Hospital of Shandong University , Shandong , 250012 , China
| | - Zonghua Liu
- a Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering , Jinan University , Guangzhou , 510632 , China
- b Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes , Jinan University , Guangzhou , 510632 , China
| | - Wei Xue
- a Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering , Jinan University , Guangzhou , 510632 , China
- b Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes , Jinan University , Guangzhou , 510632 , China
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30
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Zhong D, Jiao Y, Zhang Y, Zhang W, Li N, Zuo Q, Wang Q, Xue W, Liu Z. Effects of the gene carrier polyethyleneimines on structure and function of blood components. Biomaterials 2013; 34:294-305. [DOI: 10.1016/j.biomaterials.2012.09.060] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Accepted: 09/25/2012] [Indexed: 01/16/2023]
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Laroche M, Kutcher ME, Huang MC, Cohen MJ, Manley GT. Coagulopathy after traumatic brain injury. Neurosurgery 2012; 70:1334-45. [PMID: 22307074 DOI: 10.1227/neu.0b013e31824d179b] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Traumatic brain injury has long been associated with abnormal coagulation parameters, but the exact mechanisms underlying this phenomenon are poorly understood. Coagulopathy after traumatic brain injury includes hypercoagulable and hypocoagulable states that can lead to secondary injury by either the induction of microthrombosis or the progression of hemorrhagic brain lesions. Multiple hypotheses have been proposed to explain this phenomenon, including the release of tissue factor, disseminated intravascular coagulation, hyperfibrinolysis, hypoperfusion with protein C activation, and platelet dysfunction. The diagnosis and management of these complex patients are difficult given the lack of understanding of the underlying mechanisms. The goal of this review is to summarize the current knowledge regarding the mechanisms of coagulopathy after blunt traumatic brain injury. The current and emerging diagnostic tools, radiological findings, treatment options, and prognosis are discussed.
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Affiliation(s)
- Mathieu Laroche
- Department of Neurological Surgery, University of California, San Francisco, California 94110, USA
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Shankarraman V, Davis-Gorman G, Copeland JG, Caplan MR, McDonagh PF. Standardized methods to quantify thrombogenicity of blood-contacting materials via thromboelastography. J Biomed Mater Res B Appl Biomater 2011; 100:230-8. [DOI: 10.1002/jbm.b.31942] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 04/08/2011] [Accepted: 07/07/2011] [Indexed: 11/08/2022]
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Affiliation(s)
- Achala de Mel
- Centre for Nanotechnology & Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, United Kingdom
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Pathogenesis of implant-associated infection: the role of the host. Semin Immunopathol 2011; 33:295-306. [DOI: 10.1007/s00281-011-0275-7] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Accepted: 02/14/2011] [Indexed: 01/30/2023]
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