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Perrella G, Montague SJ, Brown HC, Garcia Quintanilla L, Slater A, Stegner D, Thomas M, Heemskerk JWM, Watson SP. Role of Tyrosine Kinase Syk in Thrombus Stabilisation at High Shear. Int J Mol Sci 2022; 23:ijms23010493. [PMID: 35008919 PMCID: PMC8745592 DOI: 10.3390/ijms23010493] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 12/18/2022] Open
Abstract
Understanding the pathways involved in the formation and stability of the core and shell regions of a platelet-rich arterial thrombus may result in new ways to treat arterial thrombosis. The distinguishing feature between these two regions is the absence of fibrin in the shell which indicates that in vitro flow-based assays over thrombogenic surfaces, in the absence of coagulation, can be used to resemble this region. In this study, we have investigated the contribution of Syk tyrosine kinase in the stability of platelet aggregates (or thrombi) formed on collagen or atherosclerotic plaque homogenate at arterial shear (1000 s-1). We show that post-perfusion of the Syk inhibitor PRT-060318 over preformed thrombi on both surfaces enhances thrombus breakdown and platelet detachment. The resulting loss of thrombus stability led to a reduction in thrombus contractile score which could be detected as early as 3 min after perfusion of the Syk inhibitor. A similar loss of thrombus stability was observed with ticagrelor and indomethacin, inhibitors of platelet adenosine diphosphate (ADP) receptor and thromboxane A2 (TxA2), respectively, and in the presence of the Src inhibitor, dasatinib. In contrast, the Btk inhibitor, ibrutinib, causes only a minor decrease in thrombus contractile score. Weak thrombus breakdown is also seen with the blocking GPVI nanobody, Nb21, which indicates, at best, a minor contribution of collagen to the stability of the platelet aggregate. These results show that Syk regulates thrombus stability in the absence of fibrin in human platelets under flow and provide evidence that this involves pathways additional to activation of GPVI by collagen.
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Affiliation(s)
- Gina Perrella
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
- Department of Biochemistry, CARIM, Maastricht University, 6200 AC Maastricht, The Netherlands;
| | - Samantha J. Montague
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
| | - Helena C. Brown
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
- Institute of Experimental Biomedicine I, University Hospital, University of Würzburg, 97080 Würzburg, Germany;
| | - Lourdes Garcia Quintanilla
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
| | - Alexandre Slater
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
| | - David Stegner
- Institute of Experimental Biomedicine I, University Hospital, University of Würzburg, 97080 Würzburg, Germany;
| | - Mark Thomas
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
| | - Johan W. M. Heemskerk
- Department of Biochemistry, CARIM, Maastricht University, 6200 AC Maastricht, The Netherlands;
- Department Synapse Research Institute, 6214 AC Maastricht, The Netherlands
| | - Steve P. Watson
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (G.P.); (S.J.M.); (H.C.B.); (L.G.Q.); (A.S.); (M.T.)
- Centre of Membrane Proteins and Receptors (COMPARE), The Universities of Birmingham, Birmingham B15 2TT, UK
- Centre of Membrane Proteins and Receptors (COMPARE), The Universities of Nottingham, Nottingham NG7 2RD, UK
- Correspondence: ; Tel.: +44-0121-4146514
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Abstract
Increased blood platelet activation plays an important role in cardiovascular diseases (CVDs). Recent experiments indicate that certain fruits and vegetables, including onion, garlic, and beetroot, have anti-platelet potential and therefore may reduce the likelihood of CVDs. While vegetables from the Cucuritaceae family are known to exerting beneficial antioxidant and anti-inflammatory effects, their effects on blood platelet activation are poorly understood. Therefore, the aim of the present study was to determine the effect on platelet adhesion of preparations from selected cucurbits: pumpkin (Cucurbita pepo; fruit without seeds), zucchini (Cucurbita pepo convar. giromontina; fruit with seeds), cucumber (Cucumis sativus; fruit with seeds), white pattypan squash (Cucurbita pepo var. patisoniana; fruit without seeds) and yellow pattypan squash (Cucurbita pepo var. patisoniana, fruit without seeds). It also evaluates the activity of these preparations on enzymatic lipid peroxidation in thrombin-activated washed blood platelets by TBARS assay. The study also determines the anti-platelet properties of these five cucurbit preparations in whole blood by flow cytometry and with the total thrombus-formation analysis system (T-TAS) and evaluates the cytotoxicity of the tested preparations against platelets based on LDH activity. The results indicate that the yellow Cucurbita pepo var. patisoniana preparation demonstrated stronger anti-platelet properties than the other tested preparations, reducing the adhesion of thrombin-activated platelets to collagen/fibrinogen, and inhibiting arachidonic acid metabolism and GPIIb/IIIa expression on 10 µM ADP-activated platelets. None of the preparations was found to cause platelet lysis. Our findings provide new information on the anti-platelet activity of the tested cucurbit preparations and their potential for treating CVDs associated with platelet hyperactivity.
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Affiliation(s)
- Agata Rolnik
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Łódź, 90-236, Lodz, Poland
| | - Bartosz Skalski
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Łódź, 90-236, Lodz, Poland
| | - Anna Stochmal
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100, Puławy, Poland
| | - Beata Olas
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Łódź, 90-236, Lodz, Poland.
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Ablat N, Ablimit M, Abudoukadier A, Kadeer B, Yang L. Investigating the hemostatic effect of medicinal plant Arnebia euchroma (Royle) I.M.Johnst extract in a mouse model. J Ethnopharmacol 2021; 278:114306. [PMID: 34111535 DOI: 10.1016/j.jep.2021.114306] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 05/26/2021] [Accepted: 06/03/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Arnebia euchroma (Royle) I.M.Johnst (AE) has been reported to be a potentially useful medicinal herb for the treatment of several circulatory diseases in traditional Chinese medicine. It shows effects such as "cooling of the blood," promotion of blood circulation, detoxification, and rash clearance. AIM OF THE STUDY To explore the hemostatic effect of the ethyl acetate extract of AE in mice. MATERIALS AND METHODS In this study, we explored the effects of AE on bleeding time, blood coagulation time, platelet count, and blood coagulation parameters in normal Kunming mice. Different doses of the AE extract (5, 10, and 20 g kg-1·day-1) were administered to mice for 14 days. Sodium carboxymethyl cellulose (CMC-Na at 0.5%) and Yunnan Baiyao (0.8 g kg-1·day-1) were administered as negative and positive control treatments, respectively. Bleeding time, blood coagulation time, platelet count, blood platelet aggregation, blood platelet adhesion to fibrinogen, platelet factor 4 (PF-4) secretions from blood platelets, and blood coagulation parameters including prothrombin time (PT), activated partial thromboplastin time (aPTT), thrombin time (TT), and fibrinogen (FIB) levels were measured on day 15 of administration. RESULTS Bleeding and blood coagulation time were significantly lower and TT was shorter in the AE extract-treated groups than in the control groups. Furthermore, FIB levels and platelet count were higher, whereas blood platelet aggregation, blood platelet adhesion to fibrinogen, and PF-4 secretion from blood platelets were more obvious in the AE extract-treated groups than in the control group. However, no significant differences were detected for PT and aPTT between the extract-treated and control groups. CONCLUSIONS The ethyl acetate extract of AE showed potential hemostasis effects in mice by shortening the bleeding and coagulation time. In addition, the extract increased platelet count and induced blood platelet aggregation, blood platelet adhesion to fibrinogen, PF-4 secretion from blood platelets, and FIB level, while it shortened TT.
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Affiliation(s)
- Nuramatjan Ablat
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China; School of Medicine, Huanghuai University, Henan Province, 463000, China.
| | - Mihray Ablimit
- Xinjiang Uygur Autonomous Region Shache County Dunbag Township Health Center, 844700, China.
| | - Abudoureheman Abudoukadier
- Department of Cardiology, Urumqi City Friendship Hospital, Xinjiang Uygur Autonomous Region, Urumqi, 830049, China.
| | - Buhaiqiemu Kadeer
- Department of Gynecology, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830000, China.
| | - Lei Yang
- Key Laboratory of Cardiovascular and Cerebrovascular Diseases, School of Medicine, Huanghuai University, Henan Province, 463000, China.
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Coenen DM, Heinzmann ACA, Oggero S, Albers HJ, Nagy M, Hagué P, Kuijpers MJE, Vanderwinden JM, van der Meer AD, Perretti M, Koenen RR, Cosemans JMEM. Inhibition of Phosphodiesterase 3A by Cilostazol Dampens Proinflammatory Platelet Functions. Cells 2021; 10:1998. [PMID: 34440764 PMCID: PMC8392606 DOI: 10.3390/cells10081998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE platelets possess not only haemostatic but also inflammatory properties, which combined are thought to play a detrimental role in thromboinflammatory diseases such as acute coronary syndromes and stroke. Phosphodiesterase (PDE) 3 and -5 inhibitors have demonstrated efficacy in secondary prevention of arterial thrombosis, partially mediated by their antiplatelet action. Yet it is unclear whether such inhibitors also affect platelets' inflammatory functions. Here, we aimed to examine the effect of the PDE3A inhibitor cilostazol and the PDE5 inhibitor tadalafil on platelet function in various aspects of thromboinflammation. Approach and results: cilostazol, but not tadalafil, delayed ex vivo platelet-dependent fibrin formation under whole blood flow over type I collagen at 1000 s-1. Similar results were obtained with blood from Pde3a deficient mice, indicating that cilostazol effects are mediated via PDE3A. Interestingly, cilostazol specifically reduced the release of phosphatidylserine-positive extracellular vesicles (EVs) from human platelets while not affecting total EV release. Both cilostazol and tadalafil reduced the interaction of human platelets with inflamed endothelium under arterial flow and the release of the chemokines CCL5 and CXCL4 from platelets. Moreover, cilostazol, but not tadalafil, reduced monocyte recruitment and platelet-monocyte interaction in vitro. CONCLUSIONS this study demonstrated yet unrecognised roles for platelet PDE3A and platelet PDE5 in platelet procoagulant and proinflammatory responses.
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Affiliation(s)
- Daniëlle M. Coenen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands; (D.M.C.); (A.C.A.H.); (M.N.); (M.J.E.K.); (R.R.K.)
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Alexandra C. A. Heinzmann
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands; (D.M.C.); (A.C.A.H.); (M.N.); (M.J.E.K.); (R.R.K.)
| | - Silvia Oggero
- Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London E1 4NS, UK; (S.O.); (M.P.)
| | - Hugo J. Albers
- BIOS Lab-on-a-Chip Group, Technical Medical Centre, MESA+ Institute for Nanotechnology, University of Twente, 7522 NB Enschede, The Netherlands;
- Applied Stem Cell Technologies Group, Technical Medical Centre, University of Twente, 7522 NB Enschede, The Netherlands;
| | - Magdolna Nagy
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands; (D.M.C.); (A.C.A.H.); (M.N.); (M.J.E.K.); (R.R.K.)
| | - Perrine Hagué
- Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, B-1070 Brussels, Belgium; (P.H.); (J.-M.V.)
| | - Marijke J. E. Kuijpers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands; (D.M.C.); (A.C.A.H.); (M.N.); (M.J.E.K.); (R.R.K.)
| | - Jean-Marie Vanderwinden
- Laboratory of Neurophysiology, Faculty of Medicine, Université Libre de Bruxelles, B-1070 Brussels, Belgium; (P.H.); (J.-M.V.)
| | - Andries D. van der Meer
- Applied Stem Cell Technologies Group, Technical Medical Centre, University of Twente, 7522 NB Enschede, The Netherlands;
| | - Mauro Perretti
- Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London E1 4NS, UK; (S.O.); (M.P.)
| | - Rory R. Koenen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands; (D.M.C.); (A.C.A.H.); (M.N.); (M.J.E.K.); (R.R.K.)
| | - Judith M. E. M. Cosemans
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands; (D.M.C.); (A.C.A.H.); (M.N.); (M.J.E.K.); (R.R.K.)
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Lau S, Maier A, Braune S, Gossen M, Lendlein A. Effect of Endothelial Culture Medium Composition on Platelet Responses to Polymeric Biomaterials. Int J Mol Sci 2021; 22:7006. [PMID: 34209789 PMCID: PMC8268423 DOI: 10.3390/ijms22137006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/23/2021] [Accepted: 06/23/2021] [Indexed: 02/05/2023] Open
Abstract
Near-physiological in vitro thrombogenicity test systems for the evaluation of blood-contacting endothelialized biomaterials requires co-cultivation with platelets (PLT). However, the addition of PLT has led to unphysiological endothelial cell (EC) detachment in such in vitro systems. A possible cause for this phenomenon may be PLT activation triggered by the applied endothelial cell medium, which typically consists of basal medium (BM) and nine different supplements. To verify this hypothesis, the influence of BM and its supplements was systematically analyzed regarding PLT responses. For this, human platelet rich plasma (PRP) was mixed with BM, BM containing one of nine supplements, or with BM containing all supplements together. PLT adherence analysis was carried out in six-channel slides with plasma-treated cyclic olefin copolymer (COC) and poly(tetrafluoro ethylene) (PTFE, as a positive control) substrates as part of the six-channel slides in the absence of EC and under static conditions. PLT activation and aggregation were analyzed using light transmission aggregometry and flow cytometry (CD62P). Medium supplements had no effect on PLT activation and aggregation. In contrast, supplements differentially affected PLT adherence, however, in a polymer- and donor-dependent manner. Thus, the use of standard endothelial growth medium (BM + all supplements) maintains functionality of PLT under EC compatible conditions without masking the differences of PLT adherence on different polymeric substrates. These findings are important prerequisites for the establishment of a near-physiological in vitro thrombogenicity test system assessing polymer-based cardiovascular implant materials in contact with EC and PLT.
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Affiliation(s)
- Skadi Lau
- Institute of Active Polymers and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Hereon, 14513 Teltow, Germany; (S.L.); (A.M.); (S.B.); (M.G.)
| | - Anna Maier
- Institute of Active Polymers and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Hereon, 14513 Teltow, Germany; (S.L.); (A.M.); (S.B.); (M.G.)
| | - Steffen Braune
- Institute of Active Polymers and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Hereon, 14513 Teltow, Germany; (S.L.); (A.M.); (S.B.); (M.G.)
| | - Manfred Gossen
- Institute of Active Polymers and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Hereon, 14513 Teltow, Germany; (S.L.); (A.M.); (S.B.); (M.G.)
| | - Andreas Lendlein
- Institute of Active Polymers and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Hereon, 14513 Teltow, Germany; (S.L.); (A.M.); (S.B.); (M.G.)
- Institute of Chemistry, University of Potsdam, 14476 Potsdam, Germany
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Cheng N, Zhang Y, Delaney MK, Wang C, Bai Y, Skidgel RA, Du X. Targeting Gα 13-integrin interaction ameliorates systemic inflammation. Nat Commun 2021; 12:3185. [PMID: 34045461 PMCID: PMC8159967 DOI: 10.1038/s41467-021-23409-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/27/2021] [Indexed: 12/13/2022] Open
Abstract
Systemic inflammation as manifested in sepsis is an excessive, life-threatening inflammatory response to severe bacterial or viral infection or extensive injury. It is also a thrombo-inflammatory condition associated with vascular leakage/hemorrhage and thrombosis that is not effectively treated by current anti-inflammatory or anti-thrombotic drugs. Here, we show that MB2mP6 peptide nanoparticles, targeting the Gα13-mediated integrin "outside-in" signaling in leukocytes and platelets, inhibited both inflammation and thrombosis without causing hemorrhage/vascular leakage. MB2mP6 improved mouse survival when infused immediately or hours after onset of severe sepsis. Furthermore, platelet Gα13 knockout inhibited septic thrombosis whereas leukocyte Gα13 knockout diminished septic inflammation, each moderately improving survival. Dual platelet/leukocyte Gα13 knockout inhibited septic thrombosis and inflammation, further improving survival similar to MB2mP6. These results demonstrate that inflammation and thrombosis independently contribute to poor outcomes and exacerbate each other in systemic inflammation, and reveal a concept of dual anti-inflammatory/anti-thrombotic therapy without exacerbating vascular leakage.
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Affiliation(s)
- Ni Cheng
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Yaping Zhang
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - M Keegan Delaney
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
- DuPage Medical Technology, Inc., Chicago, IL, USA
| | - Can Wang
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Yanyan Bai
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | | | - Xiaoping Du
- Department of Pharmacology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA.
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Jia E, Liang B, Lin Y, Su Z. Hemocompatibility of polyzwitterion-modified titanium dioxide nanotubes. Nanotechnology 2021; 32:305704. [PMID: 33752184 DOI: 10.1088/1361-6528/abf0cb] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
Titanium dioxide nanotubes (TNTs) have attracted increasing interest as implantable materials due to their many desirable properties. However, their blood compatibility remains an issue. In this paper, TNTs of different diameters were modified with two types of zwitterionic polymers, poly(sulfobetaine methacrylate) (pSBMA) and poly(carboxybetaine methacrylate) (pCBMA), which were grafted onto the TNTs using ARGET-ATRP (activators regenerated by electron transfer atom transfer radical polymerization) method. Both pSBMA and pCBMA brushes coatings were found to greatly reduce adsorption of bovine serum albumin (BSA) and fibrinogen (Fib) onto the TNTs, showing excellent protein resistance. Moreover, the effects of the surface topography on the amount of protein adsorption were largely suppressed by the polyzwitterion coatings. The conformation of the protein adsorbed to the substrates was analyzed at the molecular level by Fourier-transform infrared reflection spectroscopy (FT-IR), which revealed that the BSA adsorbed on the polyzwitterion-modified TNTs adopted significantly different secondary structures from that on the virgin TNTs, whereas the conformation of the adsorbed Fib remained basically the same. The polyzwitterion-modified TNTs were found to be non-hemolytic, and platelet adhesion and activation was significantly reduced, showing excellent blood compatibility.
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Affiliation(s)
- Erna Jia
- The State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Bang Liang
- The State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Yuan Lin
- The State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | - Zhaohui Su
- The State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
- University of Science and Technology of China, Hefei 230026, People's Republic of China
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Meng X, Cheng Y, Wang P, Chen K, Chen Z, Liu X, Fu X, Wang K, Liu K, Liu Z, Duan X. Enhanced Hemocompatibility of a Direct Chemical Vapor Deposition-Derived Graphene Film. ACS Appl Mater Interfaces 2021; 13:4835-4843. [PMID: 33474941 DOI: 10.1021/acsami.0c19790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A wide range of biomedical devices are being used to treat cardiovascular diseases, and thus they routinely come into contact with blood. Insufficient hemocompatibility has been found to impair the functionality and safety of these devices through the activation of blood coagulation and the immune system. Numerous attempts have been made to develop surface modification approaches of the cardiovascular devices to improve their hemocompatibility. However, there are still no ideal "blood-friendly" coating materials, which possess the desired hemocompatibility, tissue compatibility, and mechanical properties. As a novel multifunctional material, graphene has been proposed for a wide range of biomedical applications. The chemical inertness, atomic smoothness, and high durability make graphene an ideal candidate as a surface coating material for implantable devices. Here, we evaluated the hemocompatibility of a graphene film prepared on quartz glasses (Gra-glasses) from a direct chemical vapor deposition process. We found that the graphene coating, which is free of transfer-mediating polymer contamination, significantly suppressed platelet adhesion and activation, prolonged coagulation time, and reduced ex vivo thrombosis formation. We attribute the excellent antithrombogenic properties of the Gra-glasses to the low surface roughness, low surface energy (especially the low polar component of the surface energy), and the negative surface charge of the graphene film. Given these excellent hemocompatible properties, along with its chemical inertness, high durability, and molecular impermeability, a graphene film holds great promise as an antithrombogenic coating for next-generation cardiovascular devices.
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Affiliation(s)
- Xuejuan Meng
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Yi Cheng
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Puxin Wang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Ke Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhaolong Chen
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xiaojun Liu
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Xuefeng Fu
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Kun Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Kaihui Liu
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
| | - Zhongfan Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Xiaojie Duan
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
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Wajih N, Alipour E, Rigal F, Zhu J, Perlegas A, Caudell DL, Kim-Shapiro D. Effects of nitrite and far-red light on coagulation. Nitric Oxide 2021; 107:11-18. [PMID: 33271226 PMCID: PMC7855911 DOI: 10.1016/j.niox.2020.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/18/2020] [Accepted: 11/26/2020] [Indexed: 01/14/2023]
Abstract
Nitric oxide, NO, has been explored as a therapeutic agent to treat thrombosis. In particular, NO has potential in treating mechanical device-associated thrombosis due to its ability to reduce platelet activation and due to the central role of platelet activation and adhesion in device thrombosis. Nitrite is a unique NO donor that reduces platelet activation in that it's activity requires the presence of red blood cells whereas NO activity of other NO donors is blunted by red blood cells. Interestingly, we have previously shown that red blood cell mediated inhibition of platelet activation by adenosine diphosophate (ADP) is dramatically enhanced by illumination with far-red light that is likely due to photolysis of red cell surface bound NO congeners. We now report the effects of nitrite, far-red light, and their combination on several measure of blood coagulation using a variety of agonists. We employed turbidity assays in platelet rich plasma, platelet activation using flow cytometry analysis of a fluorescently labeled antibody to the activated platelet fibrinogen binding site, multiplate impedance-based platelet aggregometry, and assessment of platelet adhesion to collagen coated flow-through microslides. In all cases, the combination of far-red light and nitrite treatment decreased measures of coagulation, but in some cases mono-treatment with nitrite or light alone had no effect. Perhaps most relevant to device thrombosis, we observed that platelet adhesions was inhibited by the combination of nitrite and light treatment while nitrite alone and far-red light alone trended to decrease adhesion, but the results were mixed. These results support the potential of combined far-red light and nitrite treatment for preventing thrombosis in extra-corporeal or shallow-tissue depth devices where the far-red light can penetrate. Such a combined treatment could be advantageous due to the localized treatment afforded by far-red light illumination with minimal systemic effects. Given the role of thrombosis in COVID 19, application to treatment of patients infected with SARS Cov-2 might also be considered.
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Affiliation(s)
- Nadeem Wajih
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, United States; Translational Science Center, Wake Forest University, Winston-Salem, NC, 27109, United States.
| | - Elmira Alipour
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, United States.
| | - Fernando Rigal
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, United States.
| | - Jiqing Zhu
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, United States.
| | - Andreas Perlegas
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, United States
| | - David L Caudell
- Department of Pathology,-Section on Comparative Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, United States.
| | - Daniel Kim-Shapiro
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, United States; Translational Science Center, Wake Forest University, Winston-Salem, NC, 27109, United States.
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10
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Belcher A, Zulfiker AHM, Li OQ, Yue H, Gupta AS, Li W. Targeting Thymidine Phosphorylase With Tipiracil Hydrochloride Attenuates Thrombosis Without Increasing Risk of Bleeding in Mice. Arterioscler Thromb Vasc Biol 2021; 41:668-682. [PMID: 33297751 PMCID: PMC8105268 DOI: 10.1161/atvbaha.120.315109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Current antiplatelet medications increase the risk of bleeding, which leads to a clear clinical need in developing novel mechanism-based antiplatelet drugs. TYMP (Thymidine phosphorylase), a cytoplasm protein that is highly expressed in platelets, facilitates multiple agonist-induced platelet activation, and enhances thrombosis. Tipiracil hydrochloride (TPI), a selective TYMP inhibitor, has been approved by the Food and Drug Administration for clinical use. We tested the hypothesis that TPI is a safe antithrombotic medication. Approach and Results: By coexpression of TYMP and Lyn, GST (glutathione S-transferase) tagged Lyn-SH3 domain or Lyn-SH2 domain, we showed the direct evidence that TYMP binds to Lyn through both SH3 and SH2 domains, and TPI diminished the binding. TYMP deficiency significantly inhibits thrombosis in vivo in both sexes. Pretreatment of platelets with TPI rapidly inhibited collagen- and ADP-induced platelet aggregation. Under either normal or hyperlipidemic conditions, treating wild-type mice with TPI via intraperitoneal injection, intravenous injection, or gavage feeding dramatically inhibited thrombosis without inducing significant bleeding. Even at high doses, TPI has a lower bleeding side effect compared with aspirin and clopidogrel. Intravenous delivery of TPI alone or combined with tissue plasminogen activator dramatically inhibited thrombosis. Dual administration of a very low dose of aspirin and TPI, which had no antithrombotic effects when used alone, significantly inhibited thrombosis without disturbing hemostasis. CONCLUSIONS This study demonstrated that inhibition of TYMP, a cytoplasmic protein, attenuated multiple signaling pathways that mediate platelet activation, aggregation, and thrombosis. TPI can be used as a novel antithrombotic medication without the increase in risk of bleeding.
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Affiliation(s)
- Adam Belcher
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine of Marshall University, Huntington, WV, 25755, USA
| | - Abu Hasanat Md Zulfiker
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine of Marshall University, Huntington, WV, 25755, USA
| | - Oliver Qiyue Li
- Marshall Institute for Interdisciplinary Research; Huntington, WV, 25701, USA
| | - Hong Yue
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine of Marshall University, Huntington, WV, 25755, USA
| | - Anirban Sen Gupta
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland OH 44106, USA
| | - Wei Li
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine of Marshall University, Huntington, WV, 25755, USA
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11
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Klingler P, Niklaus M, Koessler J, Weber K, Koessler A, Boeck M, Kobsar A. Influence of long-term proteasome inhibition on platelet responsiveness mediated by bortezomib. Vascul Pharmacol 2021; 138:106830. [PMID: 33422688 DOI: 10.1016/j.vph.2021.106830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Although platelets contain a full proteasome system, its role in platelet function is not completely understood yet. Since the proteasome system may be involved in time-delayed processes, platelet responsiveness was investigated after long-term, bortezomib-mediated proteasome inhibition. MATERIALS AND METHODS Citrate-anticoagulated whole blood was stored with 5 nM and 1 μM bortezomib for 24 h. Consecutively, aggregation was measured by light transmission in platelet-rich-plasma (PRP). Flow cytometry was performed to determine phosphorylation levels of the vasodilator-stimulated phosphoprotein (VASP), fibrinogen binding, PAC1-antibody binding and purinergic receptor expression in PRP, P2Y12 activity or glycoprotein (GP) Ib and IIb expression in whole blood. P2Y1 and P2X1 activities were assessed by calcium flux-induced fluorescence in washed platelets. Using PRP, adherent platelets on fibrinogen-, collagen- and ristocetin-coated surfaces were visualized and quantified by immunostaining. RESULTS Under bortezomib, VASP phosphorylation was less inducible and nitric oxide-induced inhibition of fibrinogen binding was slightly reduced. Proteasome inhibition did not tamper adenosine diphosphate-mediated aggregation or purinergic receptor expression and activity. Induced expression of activated fibrinogen receptors and fibrinogen binding were not significantly influenced by incubation with bortezomib for 24 h. Aggregation values with threshold agonist concentrations were increased under bortezomib. Despite unchanged GPIb expression, bortezomib-treated platelets showed enhanced adhesion on coated surfaces. CONCLUSIONS In platelets incubated for 24 h, bortezomib mediates a slight attenuation of inhibitory signaling, associated with facilitated platelet aggregation using threshold agonist concentrations and enhanced adhesion on agonist-coated surfaces.
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Affiliation(s)
- Philipp Klingler
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
| | - Marius Niklaus
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
| | - Juergen Koessler
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
| | - Katja Weber
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
| | - Angela Koessler
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
| | - Markus Boeck
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
| | - Anna Kobsar
- Institute of Transfusion Medicine and Haemotherapy, University of Wuerzburg, Oberduerrbacher Straße 6, D-97080 Wuerzburg, Germany.
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12
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Douglass M, Hopkins S, Pandey R, Singha P, Norman M, Handa H. S-Nitrosoglutathione-Based Nitric Oxide-Releasing Nanofibers Exhibit Dual Antimicrobial and Antithrombotic Activity for Biomedical Applications. Macromol Biosci 2021; 21:e2000248. [PMID: 33021079 PMCID: PMC7855517 DOI: 10.1002/mabi.202000248] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/07/2020] [Indexed: 12/20/2022]
Abstract
The novel use of nanofibers as a physical barrier between blood and medical devices has allowed for modifiable, innovative surface coatings on devices ordinarily plagued by thrombosis, delayed healing, and chronic infection. In this study, the nitric oxide (NO) donor S-nitrosoglutathione (GSNO) is blended with the biodegradable polymers polyhydroxybutyrate (PHB) and polylactic acid (PLA) for the fabrication of hemocompatible, antibacterial nanofibers tailored for blood-contacting applications. Stress/strain behavior of different concentrations of PHB and PLA is recorded to optimize the mechanical properties of the nanofibers. Nanofibers incorporated with different concentrations of GSNO (10, 15, 20 wt%) are evaluated based on their NO-releasing kinetics. PLA/PHB + 20 wt% GSNO nanofibers display the greatest NO release over 72 h (0.4-1.5 × 10-10 mol mg-1 min-1 ). NO-releasing fibers successfully reduce viable adhered bacterial counts by ≈80% after 24 h of exposure to Staphylococcus aureus. NO-releasing nanofibers exposed to porcine plasma reduce platelet adhesion by 64.6% compared to control nanofibers. The nanofibers are found noncytotoxic (>95% viability) toward NIH/3T3 mouse fibroblasts, and 4',6-diamidino-2-phenylindole and phalloidin staining shows that fibroblasts cultured on NO-releasing fibers have improved cellular adhesion and functionality. Therefore, these novel NO-releasing nanofibers provide a safe antimicrobial and hemocompatible coating for blood-contacting medical devices.
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Affiliation(s)
- Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Sean Hopkins
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Rashmi Pandey
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Priya Singha
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Megan Norman
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
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13
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Ren L, You T, Li Q, Chen G, Liu Z, Zhao X, Wang Y, Wang L, Wu Y, Tang C, Zhu L. Molecular docking-assisted screening reveals tannic acid as a natural protein disulphide isomerase inhibitor with antiplatelet and antithrombotic activities. J Cell Mol Med 2020; 24:14257-14269. [PMID: 33128352 PMCID: PMC7753999 DOI: 10.1111/jcmm.16043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 12/12/2022] Open
Abstract
Protein disulphide isomerase (PDI) promotes platelet activation and constitutes a novel antithrombotic target. In this study, we reported that a PDI‐binding plant polyphenol, tannic acid (TA), inhibits PDI activity, platelet activation and thrombus formation. Molecular docking using plant polyphenols from dietary sources with cardiovascular benefits revealed TA as the most potent binding molecule with PDI active centre. Surface plasmon resonance demonstrated that TA bound PDI with high affinity. Using Di‐eosin‐glutathione disulphide fluorescence assay and PDI assay kit, we showed that TA inhibited PDI activity. In isolated platelets, TA inhibited platelet aggregation stimulated by either GPVI or ITAM pathway agonists. Flow cytometry showed that TA inhibited thrombin‐ or CRP‐stimulated platelet activation, as reflected by reduced granule secretion and integrin activation. TA also reduced platelet spreading on immobilized fibrinogen and platelet adhesion under flow conditions. In a laser‐induced vascular injury mouse model, intraperitoneal injection of TA significantly decreased the size of cremaster arteriole thrombi. No prolongation of mouse jugular vein and tail‐bleeding time was observed after TA administration. Therefore, we identified TA from natural polyphenols as a novel inhibitor of PDI function. TA inhibits platelet activation and thrombus formation, suggesting it as a potential antithrombotic agent.
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Affiliation(s)
- Lijie Ren
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
- National Clinical Research Center for Hematologic Diseasesthe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Tao You
- Jiangsu Institute of HematologyKey Laboratory of Thrombosis and Hemostasis of Ministry of HealthThe First Affiliated Hospital of Soochow UniversitySuzhouChina
- Department of CardiologyThe Second Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Qing Li
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
| | - Guona Chen
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
| | - Ziting Liu
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
| | - Xuefei Zhao
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
| | - Yinyan Wang
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
| | - Lei Wang
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
| | - Yi Wu
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
- National Clinical Research Center for Hematologic Diseasesthe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Chaojun Tang
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
- National Clinical Research Center for Hematologic Diseasesthe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Li Zhu
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySuzhou Key Laboratory of Thrombosis and Vascular DiseasesState Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouChina
- National Clinical Research Center for Hematologic Diseasesthe First Affiliated Hospital of Soochow UniversitySuzhouChina
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14
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Kim S, Ye SH, Adamo A, Orizondo RA, Jo J, Cho SK, Wagner WR. A biostable, anti-fouling zwitterionic polyurethane-urea based on PDMS for use in blood-contacting medical devices. J Mater Chem B 2020; 8:8305-8314. [PMID: 32785384 PMCID: PMC7530005 DOI: 10.1039/d0tb01220c] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Polydimethylsiloxane (PDMS) is commonly used in medical devices because it is non-toxic and stable against oxidative stress. Relatively high blood platelet adhesion and the need for chemical crosslinking through curing, however, limit its utility. In this research, a biostable PDMS-based polyurethane-urea bearing zwitterion sulfobetaine (PDMS-SB-UU) was synthesized for potential use in the fabrication or coating of blood-contacting devices, such as a conduits, artificial lungs, and microfluidic devices. The chemical structure and physical properties of synthesized PDMS-SB-UU were confirmed by 1H-nuclear magnetic resonance (1H-NMR), X-ray diffraction (XRD), and uniaxial stress-strain curve. In vitro stability of PDMS-SB-UU was confirmed against lipase and 30% H2O2 for 8 weeks, and PDMS-SB-UU demonstrated significantly higher resistance to fibrinogen adsorption and platelet deposition compared to control PDMS. Moreover, PDMS-SB-UU showed a lack of hemolysis and cytotoxicity with whole ovine blood and rat vascular smooth muscle cells (rSMCs), respectively. The PDMS-SB-UU was successfully processed into small-diameter (0.80 ± 0.05 mm) conduits by electrospinning and coated onto PDMS- and polypropylene-based blood-contacting biomaterials due to its unique physicochemical characteristics from its soft- and hard- segments.
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Affiliation(s)
- Seungil Kim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. and Departments of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sang-Ho Ye
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. and Departments of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Arianna Adamo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. and Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, 90100 Palermo, Italy
| | - Ryan A Orizondo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. and Departments of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA and Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jaehyuk Jo
- Department of Mechanical Engineering & Materials Science, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sung Kwon Cho
- Department of Mechanical Engineering & Materials Science, University of Pittsburgh, Pittsburgh, PA, USA
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. and Departments of Surgery, University of Pittsburgh, Pittsburgh, PA, USA and Departments of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA and Departments of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA
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15
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Devine R, Goudie MJ, Singha P, Schmiedt C, Douglass M, Brisbois EJ, Handa H. Mimicking the Endothelium: Dual Action Heparinized Nitric Oxide Releasing Surface. ACS Appl Mater Interfaces 2020; 12:20158-20171. [PMID: 32271542 PMCID: PMC7962625 DOI: 10.1021/acsami.9b22277] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The management of thrombosis and bacterial infection is critical to ensure the functionality of medical devices. While administration of anticoagulants is the current antithrombotic clinical practice, a variety of complications, such as uncontrolled hemorrhages or heparin-induced thrombocytopenia, can occur. Additionally, infection rates remain a costly and deadly complication associated with use of these medical devices. It has been hypothesized that if a synthetic surface could mimic the biochemical mechanisms of the endothelium of blood vessels, thrombosis could be reduced, anticoagulant use could be avoided, and infection could be prevented. Herein, the interfacial biochemical effects of the endothelium were mimicked by altering the surface of medical grade silicone rubber (SR). Surface modification was accomplished via heparin surface immobilization (Hep) and the inclusion of a nitric oxide (NO) donor into the SR polymeric matrix to achieve synergistic effects (Hep-NO-SR). An in vitro bacteria adhesion study revealed that Hep-NO-SR exhibited a 99.46 ± 0.17% reduction in viable bacteria adhesion compared to SR. An in vitro platelet study revealed Hep-NO-SR reduced platelet adhesion by 84.12 ± 6.19% compared to SR, while not generating a cytotoxic response against fibroblast cells. In a 4 h extracorporeal circuit model without systemic anticoagulation, all Hep-NO-SR samples were able to maintain baseline platelet count and device patency; whereas 66% of SR samples clotted within the first 2 h of study. Results indicate that Hep-NO-SR creates a more hemocompatible and antibacterial surface by mimicking two key biochemical functions of the native endothelium.
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Affiliation(s)
- Ryan Devine
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA USA
| | - Marcus J. Goudie
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA USA
| | - Priyadarshini Singha
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA USA
| | - Chad Schmiedt
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA USA
| | - Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA USA
| | - Elizabeth J. Brisbois
- Department of Materials Science & Engineering, College of Engineering and Computer Science, University of Central Florida, Orlando, FL USA
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA USA
- Corresponding author Dr. Hitesh Handa, College of Engineering, University of Georgia, 220 Riverbend Road, Athens, GA 30602, Telephone: (706) 542-8109,
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16
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Li P, Wang Y, Jin X, Dou J, Han X, Wan X, Yuan J, Shen J. Catalytic Generation of Nitric Oxide from Poly(ε-caprolactone)/Phosphobetainized Keratin Mats for a Vascular Tissue Engineering Scaffold. Langmuir 2020; 36:4396-4404. [PMID: 32255641 DOI: 10.1021/acs.langmuir.0c00579] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tissue-engineered vascular graft (TEVG) is a promising alternative to meet the clinical demand of organ shortages. Herein, human hair keratin was extracted by the reduction method, followed by modification with zwitterionic 2-methacryloyloxyethyl phosphorylcholine (MPC) through thiol-Michael addition to improve blood clotting nature. Then, phosphobetainized keratin (PK) was coelectrospun with poly(ε-caprolactone) (PCL) to afford PCL/PK mats with a ratio of 7:3. The surface morphology, chemical structure, and wettability of these mats were characterized. The biocomposite mats selectively enhanced adhesion, migration, and growth of endothelial cells (ECs) while suppressed proliferation of smooth muscle cells (SMCs) in the presence of glutathione (GSH) and GSNO due to the catalytic generation of NO. In addition, these mats exhibited good blood anticoagulant activity by reducing platelet adhesion, prolonging blood clotting time, and inhibiting hemolysis. Taken together, these NO-generating PCL/PK mats have potential applications as a scaffold for vascular tissue engineering with rapid endothelialization and reduced SMC proliferation.
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Affiliation(s)
- Pengfei Li
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yanfang Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xingxing Jin
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jie Dou
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiao Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiuzhen Wan
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jiang Yuan
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jian Shen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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17
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Vijayan VM, Tucker BS, Hwang PTJ, Bobba PS, Jun HW, Catledge SA, Vohra YK, Thomas V. Non-equilibrium organosilane plasma polymerization for modulating the surface of PTFE towards potential blood contact applications. J Mater Chem B 2020; 8:2814-2825. [PMID: 32163093 PMCID: PMC7453349 DOI: 10.1039/c9tb02757b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report a novel and facile organosilane plasma polymerization method designed to improve the surface characteristics of poly(tetrafluoroethylene) (PTFE). We hypothesized that the polymerized silane coating would provide an adhesive surface for endothelial cell proliferation due to a large number of surface hydroxyl groups, while the large polymer networks on the surface of PTFE would hinder platelet attachment. The plasma polymerized PTFE surfaces were then systematically characterized via different analytical techniques such as FTIR, XPS, XRD, Contact angle, and SEM. The key finding of the characterization is the time-dependent deposition of an organosilane layer on the surface of PTFE. This layer was found to provide favorable surface properties to PTFE such as a very high surface oxygen content, high hydrophilicity and improved surface mechanics. Additionally, in vitro cellular studies were conducted to determine the bio-interface properties of the plasma-treated and untreated PTFE. The important results of these experiments were rapid endothelial cell growth and decreased platelet attachment on the plasma-treated PTFE compared to untreated PTFE. Thus, this new surface modification technique could potentially address the current challenges associated with PTFE for blood contact applications, specifically poor endothelial cell growth and risk of thrombosis.
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Affiliation(s)
- Vineeth M Vijayan
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA. and Department of Material Science and Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Bernabe S Tucker
- Department of Material Science and Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Pratheek S Bobba
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Ho-Wook Jun
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Shane A Catledge
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Yogesh K Vohra
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Vinoy Thomas
- Center for Nanoscale Materials and Biointegration, The University of Alabama at Birmingham, Birmingham, AL 35294, USA. and Department of Material Science and Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
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Ovcharenko EA, Seifalian A, Rezvova MA, Klyshnikov KY, Glushkova TV, Akenteva TN, Antonova LV, Velikanova EA, Chernonosova VS, Shevelev GY, Shishkova DK, Krivkina EO, Kudryavceva YA, Seifalian AM, Barbarash LS. A New Nanocomposite Copolymer Based On Functionalised Graphene Oxide for Development of Heart Valves. Sci Rep 2020; 10:5271. [PMID: 32210287 PMCID: PMC7093488 DOI: 10.1038/s41598-020-62122-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 03/09/2020] [Indexed: 11/09/2022] Open
Abstract
Polymeric heart valves seem to be an attractive alternative to mechanical and biological prostheses as they are more durable, due to the superior properties of novel polymers, and have the biocompatibility and hemodynamics comparable to tissue substitutes. This study reports a comprehensive assessment of a nanocomposite based on the functionalised graphene oxide and poly(carbonate-urea)urethane with the trade name "Hastalex" in comparison with GORE-TEX, a commercial polymer routinely used for cardiovascular medical devices. Experimental data have proved that GORE-TEX has a 2.5-fold (longitudinal direction) and 3.5-fold (transverse direction) lower ultimate tensile strength in comparison with Hastalex (p < 0.05). The contact angles of Hastalex surfaces (85.2 ± 1.1°) significantly (p < 0.05) are lower than those of GORE-TEX (127.1 ± 6.8°). The highest number of viable cells Ea.hy 926 is on the Hastalex surface exceeding 7.5-fold when compared with the GORE-TEX surface (p < 0.001). The platelet deformation index for GORE-TEX is 2-fold higher than that of Hastalex polymer (p < 0.05). Calcium content is greater for GORE-TEX (8.4 mg/g) in comparison with Hastalex (0.55 mg/g). The results of this study have proven that Hastalex meets the main standards required for manufacturing artificial heart valves and has superior mechanical, hemocompatibility and calcific resistance properties in comparison with GORE-TEX.
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Affiliation(s)
- Evgeny A Ovcharenko
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation.
| | - Amelia Seifalian
- UCL Medical School, University College London, London, United Kingdom
| | - Maria A Rezvova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation.
| | - Kirill Yu Klyshnikov
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Tatiana V Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Tatyana N Akenteva
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Larisa V Antonova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Elena A Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Vera S Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Georgy Yu Shevelev
- Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Darya K Shishkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Evgeniya O Krivkina
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Yuliya A Kudryavceva
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
| | - Alexander M Seifalian
- NanoRegMed Ltd (Nanotechnology and Regenerative Medicine Commercialization Centre), London BioScience Innovation Centre, London, United Kingdom
| | - Leonid S Barbarash
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russian Federation
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19
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Li N, Li T, Qiao XY, Li R, Yao Y, Gong YK. Universal Strategy for Efficient Fabrication of Blood Compatible Surfaces via Polydopamine-Assisted Surface-Initiated Activators Regenerated by Electron Transfer Atom-Transfer Radical Polymerization of Zwitterions. ACS Appl Mater Interfaces 2020; 12:12337-12344. [PMID: 32096981 DOI: 10.1021/acsami.9b22574] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Implant and blood-contacting biomaterials are challenged by biofouling and thrombus formation at their interface. Zwitterionic polymer brush coating can achieve excellent hemocompatibility, but the preparation often involves tedious, expensive, and complicated procedures that are designed for specific substrates. Here, we report a facile and universal strategy of creating zwitterionic polymer brushes on variety of materials by polydopamine (PDA)-assisted and surface-initiated activators regenerated by electron transfer atom-transfer radical polymerization (PDA-SI-ARGET-ATRP). A PDA adhesive layer is first dipcoated on a substrate, followed by covalent immobilization of 3-trimethoxysilyl propyl 2-bromo-2-methylpropionate (SiBr, ATRP initiator) on the PDA via condensation. Meanwhile, the trimethoxysilyl group of SiBr also cross-links the PDA oligomers forming stabilized PDA/SiBr complex coating. Finally, SI-ARGET-ATRP is performed in a zwitterionic monomer solution catalyzed by the parts per million level of CuBr2 without deoxygenization. The conveniently fabricated zwitterionic polymer brush coatings are demonstrated to have stable, ultralow fouling, and extremely blood compatible and functionalizable characteristics. This facile, versatile, and universal surface modification strategy is expected to be widely applicable in various advanced biomaterials and devices.
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Affiliation(s)
- Nan Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, P. R. China
- Institute of Materials Science and New Technology, Northwest University, Xi'an 710127, Shaanxi, P. R. China
| | - Tong Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, P. R. China
- Institute of Materials Science and New Technology, Northwest University, Xi'an 710127, Shaanxi, P. R. China
| | - Xin-Yu Qiao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, P. R. China
- Institute of Materials Science and New Technology, Northwest University, Xi'an 710127, Shaanxi, P. R. China
| | - Rong Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, P. R. China
- Institute of Materials Science and New Technology, Northwest University, Xi'an 710127, Shaanxi, P. R. China
| | - Yao Yao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, P. R. China
- Institute of Materials Science and New Technology, Northwest University, Xi'an 710127, Shaanxi, P. R. China
| | - Yong-Kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, P. R. China
- Institute of Materials Science and New Technology, Northwest University, Xi'an 710127, Shaanxi, P. R. China
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20
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Yan S, Napiwocki B, Xu Y, Zhang J, Zhang X, Wang X, Crone WC, Li Q, Turng LS. Wavy small-diameter vascular graft made of eggshell membrane and thermoplastic polyurethane. Mater Sci Eng C Mater Biol Appl 2020; 107:110311. [PMID: 31761197 PMCID: PMC6905500 DOI: 10.1016/j.msec.2019.110311] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/17/2019] [Accepted: 10/12/2019] [Indexed: 12/17/2022]
Abstract
In this study, a small-diameter, double-layered eggshell membrane/thermoplastic polyurethane (ESM/TPU) vascular graft with a wavy structure was developed. The avian eggshell membrane, a fibrous structure similar to the extracellular matrix (ECM), has the potential to yield rapid endothelialization in vitro. The dopamine and heparin modification of the ESM surface not only promoted human umbilical vein endothelial cell (HUVEC) proliferation via cytocompatibility assessment, but also improved its anticoagulation properties as verified in platelet adhesion tests. The biomimetic mechanical properties of the vascular graft were provided by the elastic TPU fibers via electrospinning using a wavy cross-section rotating collector. The advantage of combining these two materials is to make use of the bioactivity of ESM as the internal membrane and the tunable mechanical properties of TPU as the external layer. The circumferentially wavy structure of the vascular graft produced a toe region in the non-linear section of the stress-strain curve similar to that of natural blood vessels. The ESM/TPU graft's circumferential ultimate strength was 2.57 MPa, its strain was 339% mm/mm, and its toe region was found to be around 20% mm/mm. Cyclical tension tests showed that the vascular graft could maintain good mechanical properties and showed no structural damage under repeated extension tests.
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Affiliation(s)
- Shujie Yan
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China; National Center for International Research of Micro-Nano Molding Technology Zhengzhou University, Zhengzhou, China; Polymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA; Wisconsin Institute for Discovery University of Wisconsin-Madison, Madison, WI, USA
| | - Brett Napiwocki
- Wisconsin Institute for Discovery University of Wisconsin-Madison, Madison, WI, USA
| | - Yiyang Xu
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China; National Center for International Research of Micro-Nano Molding Technology Zhengzhou University, Zhengzhou, China; Polymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA; Wisconsin Institute for Discovery University of Wisconsin-Madison, Madison, WI, USA
| | - Jue Zhang
- Morgridge Institute for Research, Madison, WI, USA
| | - Xiang Zhang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China; National Center for International Research of Micro-Nano Molding Technology Zhengzhou University, Zhengzhou, China
| | - Xiaofeng Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China; National Center for International Research of Micro-Nano Molding Technology Zhengzhou University, Zhengzhou, China
| | - Wendy C Crone
- Wisconsin Institute for Discovery University of Wisconsin-Madison, Madison, WI, USA
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China; National Center for International Research of Micro-Nano Molding Technology Zhengzhou University, Zhengzhou, China.
| | - Lih-Sheng Turng
- Polymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA; Wisconsin Institute for Discovery University of Wisconsin-Madison, Madison, WI, USA.
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21
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Sabino RM, Kauk K, Movafaghi S, Kota A, Popat KC. Interaction of blood plasma proteins with superhemophobic titania nanotube surfaces. Nanomedicine 2019; 21:102046. [PMID: 31279063 PMCID: PMC6814547 DOI: 10.1016/j.nano.2019.102046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/12/2019] [Accepted: 06/12/2019] [Indexed: 10/26/2022]
Abstract
The need to improve blood biocompatibility of medical devices is urgent. As soon as blood encounters a biomaterial implant, proteins adsorb on its surfaces, often leading to several complications such as thrombosis and failure of the device. Therefore, controlling protein adsorption plays a major role in developing hemocompatible materials. In this study, the interaction of key blood plasma proteins with superhemophobic titania nanotube substrates and the blood clotting responses was investigated. The substrate stability was evaluated and fibrinogen adsorption and thrombin formation from plasma were assessed using ELISA. Whole blood clotting kinetics was also investigated, and Factor XII activation on the substrates was characterized by an in vitro plasma coagulation time assay. The results show that superhemophobic titania nanotubes are stable and considerably decrease surface protein adsorption/Factor XII activation as well as delay the whole blood clotting, and thus can be a promising approach for designing blood contacting medical devices.
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Affiliation(s)
- Roberta Maia Sabino
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO, USA
| | - Kirsten Kauk
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Sanli Movafaghi
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Arun Kota
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO, USA; School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA
| | - Ketul C Popat
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO, USA; School of Biomedical Engineering, Colorado State University, Fort Collins, CO, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA.
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22
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Mondal A, Douglass M, Hopkins SP, Singha P, Tran M, Handa H, Brisbois EJ. Multifunctional S-Nitroso- N-acetylpenicillamine-Incorporated Medical-Grade Polymer with Selenium Interface for Biomedical Applications. ACS Appl Mater Interfaces 2019; 11:34652-34662. [PMID: 31483604 PMCID: PMC8007129 DOI: 10.1021/acsami.9b10610] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Modern crises in implantable or indwelling blood-contacting medical devices are mainly due to the dual problems of infection and thrombogenicity. There is a paucity of biomaterials that can address both problems simultaneously through a singular platform. Taking cues from the body's own defense mechanism against infection and blood clotting (thrombosis) via the endogenous gasotransmitter nitric oxide (NO), both of these issues are addressed through the development of a layered S-nitroso-N-acetylpenicillamine (SNAP)-doped polymer with a blended selenium (Se)-polymer interface. The unique capability of the SNAP-Se-1 polymer composites to explicitly release NO from the SNAP reservoir as well as generate NO via the incorporated Se is reported for the first time. The NO release from the SNAP-doped polymer increased substantially in the presence of the Se interface. The Se interface was able to generate NO in the presence of S-nitrosoglutathione (GSNO) and glutathione (GSH), demonstrating the capability of generating NO from endogenous S-nitrosothiols (RSNO). Scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) traced distribution of elemental Se nanoparticles on the interface and the surface properties were evaluated by surface wettability and roughness. The SNAP-Se-1 efficiently inhibited the growth of bacteria and reduced platelet adhesion while showing minimal cytotoxicity, thus potentially eliminating the risks of systemic antibiotic and blood coagulation therapy. The SNAP-Se-1 exhibited antibacterial activity of ∼2.39 and ∼2.25 log reductions in the growth of clinically challenging adhered Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. SNAP-Se-1 also significantly reduced platelet adhesion by 85.5% compared to corresponding controls. A WST-8-based cell viability test performed on NIH 3T3 mouse fibroblast cells provided supporting evidence for the potential biocompatibility of the material in vitro. These results highlight the prospective utility of SNAP-Se-1 as a blood-contacting infection-resistant biomaterial in vitro which can be further tuned by application specificity.
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Affiliation(s)
- Arnab Mondal
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Sean P Hopkins
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Priyadarshini Singha
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Martin Tran
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
- Corresponding Authors: Dr. Hitesh Handa, Assistant Professor, University of Georgia, 220 Riverbend Road, Athens, GA 30602, Telephone: (706) 542-8109, ; Dr. Elizabeth Brisbois, Assistant Professor, University of Central Florida, 12760 Pegasus Drive, Orlando, FL 32816, Telephone: (407) 266-7169,
| | - Elizabeth J Brisbois
- Department of Materials Science & Engineering, College of Engineering & Computer Science , University of Central Florida , Orlando , Florida 32816 , United States
- Corresponding Authors: Dr. Hitesh Handa, Assistant Professor, University of Georgia, 220 Riverbend Road, Athens, GA 30602, Telephone: (706) 542-8109, ; Dr. Elizabeth Brisbois, Assistant Professor, University of Central Florida, 12760 Pegasus Drive, Orlando, FL 32816, Telephone: (407) 266-7169,
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23
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Liu W, Xi G, Yang X, Hao X, Wang M, Feng Y, Chen H, Shi C. Poly(lactide-co-glycolide) grafted hyaluronic acid-based electrospun fibrous hemostatic fragments as a sustainable anti-infection and immunoregulation material. J Mater Chem B 2019; 7:4997-5010. [PMID: 31411610 DOI: 10.1039/c9tb00659a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Poly(lactide-co-glycolide) (PLGA) copolymers are promising synthetic materials in the biomedical field. However, in wound management, their hydrophobic properties limit their further application because of their poor adhesion to the surface of moist wounds. Furthermore, the lack of hemostatic materials with sustainable anti-infection and immunoregulation functions remains a highly significant clinical problem, as commercially available hemostatic products, such as Arista™, Celox™ and QuikClot™, do not have sufficient infection prevention and immunoregulation properties. Herein, we employ electrospinning, ammonia dissociation and surface grafting techniques to develop a series of PLGA-based hemostatic materials, including a PLGA electrospun fibrous membrane, PLGA-NH2 fibrous particles and PLGA-hyaluronic acid fibrous fragments (PLGA-HA FFs). Notably, we load azithromycin on the PLGA-HA FFs to endow them with anti-infection and immunoregulation properties. The hemostatic mechanism analysis demonstrates that the PLGA-HA FFs show superior hemostasis performance compared to traditional gauzes. The results show that the PLGA-HA FFs can act as a versatile platform with high encapsulation of azithromycin (83.03% ± 2.81%) and rapid hemostasis (28 ± 2 s) as well as prominent cytocompatibility towards L929 cells, RAW 264.7 cells and red blood cells. We believe that the current research proposes a possible strategy to synthesize materials that achieve not only safe and effective hemostasis, but also have anti-infection and immunoregulation properties for the development of further hemostatic products.
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Affiliation(s)
- Wen Liu
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang 325011, China.
| | - Guanghui Xi
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang 325011, China.
| | - Xiao Yang
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang 325011, China. and School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China.
| | - Xiao Hao
- Hebei General Hospital, Shijiazhuang, Hebei 050051, China
| | - Mingshan Wang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yakai Feng
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang 325011, China. and School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China.
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang 325011, China.
| | - Changcan Shi
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang 325011, China.
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24
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Zhao S, Li Z, Huang F, Wu J, Gui L, Zhang X, Wang Y, Wang X, Peng S, Zhao M. Nano-scaled MTCA-KKV: for targeting thrombus, releasing pharmacophores, inhibiting thrombosis and dissolving blood clots in vivo. Int J Nanomedicine 2019; 14:4817-4831. [PMID: 31308660 PMCID: PMC6614858 DOI: 10.2147/ijn.s206294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/23/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND In vitro (1R,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxyl-Lys(Pro-Ala-Lys)-Arg-Gly-Asp-Val (MTCA-KKV) adheres activated platelets, targets P-selectin and GPIIb/IIIa. This led to the development of MTCA-KKV as thrombus targeting nano-medicine. METHODS MTCA-KKV was characterized by nano-feature, anti-thrombotic activity, thrombolytic activity, thrombus target and targeting release. RESULTS In vivo 0.01 μmol/kg of MTCA-KKV formed nano-particles less than 100 nm in diameter, targeted thrombus, released anti-thrombotic and thrombolytic pharmacophores, prevented thrombosis and dissolved blood clots. CONCLUSION Based on the profiles of targeting thrombus, targeting release, inhibiting thrombosis and dissolving blood clots MTCA-KKV is a promising nano-medicine.
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Affiliation(s)
- Shurui Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Ze Li
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Fei Huang
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, People’s Republic of China
| | - Jianhui Wu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Lin Gui
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Xiaoyi Zhang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Yaonan Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Xiaozhen Wang
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Shiqi Peng
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
| | - Ming Zhao
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, College of Pharmaceutical Sciences, Capital Medical University, Beijing100069, People’s Republic of China
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25
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Costa B, Mota R, Parreira P, Tamagnini P, L Martins MC, Costa F. Broad-Spectrum Anti-Adhesive Coating Based on an Extracellular Polymer from a Marine Cyanobacterium. Mar Drugs 2019; 17:md17040243. [PMID: 31022915 PMCID: PMC6520837 DOI: 10.3390/md17040243] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/17/2019] [Accepted: 04/18/2019] [Indexed: 12/30/2022] Open
Abstract
Medical device-associated infections are a major health threat, representing about half of all hospital-acquired infections. Current strategies to prevent this problem based on device coatings with antimicrobial compounds (antibiotics or antiseptics) have proven to be insufficient, often toxic, and even promoting bacterial resistance. Herein, we report the development of an infection-preventive coating (CyanoCoating) produced with an extracellular polymer released by the marine cyanobacterium Cyanothece sp. CCY 0110. CyanoCoating was prepared by spin-coating and its bacterial anti-adhesive efficiency was evaluated against relevant etiological agents (Staphylococcus aureus, S. epidermidis, Pseudomonas aeruginosa and Escherichia coli) and platelets, both in the presence or absence of human plasma proteins. CyanoCoating cytotoxicity was assessed using the L929 fibroblasts cell line. CyanoCoating exhibited a smooth topography, low thickness and high hydrophilic properties with mild negative charge. The non-cytotoxic CyanoCoating prevented adhesion of all the bacteria tested (≤80%) and platelets (<87%), without inducing platelet activation (even in the presence of plasma proteins). The significant reduction in protein adsorption (<77%) confirmed its anti-adhesive properties. The development of this anti-adhesive coating is an important step towards the establishment of a new technological platform capable of preventing medical device-associated infections, without inducing thrombus formation in blood-contacting applications.
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Affiliation(s)
- Bruna Costa
- i3S⁻Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- INEB⁻Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
| | - Rita Mota
- i3S⁻Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- IBMC⁻Instituto de Biologia Celular e Molecular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
| | - Paula Parreira
- i3S⁻Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- INEB⁻Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
| | - Paula Tamagnini
- i3S⁻Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- IBMC⁻Instituto de Biologia Celular e Molecular, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- Faculdade de Ciências, Departamento de Biologia, Universidade do Porto, Rua do Campo Alegre, Edifício FC4, 4169-007 Porto, Portugal.
| | - M Cristina L Martins
- i3S⁻Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- INEB⁻Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- ICBAS⁻Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - Fabíola Costa
- i3S⁻Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
- INEB⁻Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal.
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Latifi Y, Moccetti F, Wu M, Xie A, Packwood W, Qi Y, Ozawa K, Shentu W, Brown E, Shirai T, McCarty OJ, Ruggeri Z, Moslehi J, Chen J, Druker BJ, López JA, Lindner JR. Thrombotic microangiopathy as a cause of cardiovascular toxicity from the BCR-ABL1 tyrosine kinase inhibitor ponatinib. Blood 2019; 133:1597-1606. [PMID: 30692122 PMCID: PMC6450432 DOI: 10.1182/blood-2018-10-881557] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/16/2019] [Indexed: 01/13/2023] Open
Abstract
The third-generation tyrosine kinase inhibitor (TKI) ponatinib has been associated with high rates of acute ischemic events. The pathophysiology responsible for these events is unknown. We hypothesized that ponatinib produces an endothelial angiopathy involving excessive endothelial-associated von Willebrand factor (VWF) and secondary platelet adhesion. In wild-type mice and ApoE-/- mice on a Western diet, ultrasound molecular imaging of the thoracic aorta for VWF A1-domain and glycoprotein-Ibα was performed to quantify endothelial-associated VWF and platelet adhesion. After treatment of wild-type mice for 7 days, aortic molecular signal for endothelial-associated VWF and platelet adhesion were five- to sixfold higher in ponatinib vs sham therapy (P < .001), whereas dasatinib had no effect. In ApoE-/- mice, aortic VWF and platelet signals were two- to fourfold higher for ponatinib-treated compared with sham-treated mice (P < .05) and were significantly higher than in treated wild-type mice (P < .05). Platelet and VWF signals in ponatinib-treated mice were significantly reduced by N-acetylcysteine and completely eliminated by recombinant ADAMTS13. Ponatinib produced segmental left ventricular wall motion abnormalities in 33% of wild-type and 45% of ApoE-/- mice and corresponding patchy perfusion defects, yet coronary arteries were normal on angiography. Instead, a global microvascular angiopathy was detected by immunohistochemistry and by intravital microscopy observation of platelet aggregates and nets associated with endothelial cells and leukocytes. Our findings reveal a new form of vascular toxicity for the TKI ponatinib that involves VWF-mediated platelet adhesion and a secondary microvascular angiopathy that produces ischemic wall motion abnormalities. These processes can be mitigated by interventions known to reduce VWF multimer size.
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Affiliation(s)
| | | | - Melinda Wu
- Knight Cardiovascular Institute
- Doernbecher Children's Hospital, and
| | | | | | - Yue Qi
- Knight Cardiovascular Institute
| | | | | | | | - Toshiaki Shirai
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR
| | - Owen J McCarty
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR
| | - Zaverio Ruggeri
- Department of Molecular and Experimental Medicine, Scripps Research Institute, La Jolla, CA
| | - Javid Moslehi
- Cardiovascular Division, Vanderbilt University, Nashville, TN
| | | | - Brian J Druker
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR; and
| | | | - Jonathan R Lindner
- Knight Cardiovascular Institute
- Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR
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27
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Ooi CH, Ling YP, Abdullah WZ, Mustafa AZ, Pung SY, Yeoh FY. Physicochemical evaluation and in vitro hemocompatibility study on nanoporous hydroxyapatite. J Mater Sci Mater Med 2019; 30:44. [PMID: 30929088 DOI: 10.1007/s10856-019-6247-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 03/19/2019] [Indexed: 05/10/2023]
Abstract
Hydroxyapatite is an ideal biomaterial for bone tissue engineering due to its biocompatibility and hemocompatibility which have been widely studied by many researchers. The incorporation of nanoporosity into hydroxyapatite could transform the biomaterial into an effective adsorbent for uremic toxins removal especially in artificial kidney system. However, the effect of nanoporosity incorporation on the hemocompatibility of hydroxyapatite has yet to be answered. In this study, nanoporous hydroxyapatite was synthesized using hydrothermal technique and its hemocompatibility was determined. Non-ionic surfactants were used as soft templates to create porosity in the hydroxyapatite. The presence of pure hydroxyapatite phase in the synthesized samples is validated by X-ray diffraction analysis and Fourier transform infrared spectroscopy. The TEM images show that the hydroxyapatite formed rod-like particles with the length of 21-90 nm and diameter of 11-70 nm. The hydroxyapatite samples exhibit BET surface area of 33-45 m2 g-1 and pore volume of 0.35-0.44 cm3 g-1. The hemocompatibility of the hydroxyapatite was determined via hemolysis test, platelet adhesion, platelet activation and blood clotting time measurement. The nanoporous hydroxyapatite shows less than 5% hemolysis, suggesting that the sample is highly hemocompatible. There is no activation and morphological change observed on the platelets adhered onto the hydroxyapatite. The blood clotting time demonstrates that the blood incubated with the hydroxyapatite did not coagulate. This study summarizes that the synthesized nanoporous hydroxyapatite is a highly hemocompatible biomaterial and could potentially be utilized in biomedical applications.
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Affiliation(s)
- Chee-Heong Ooi
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia
| | - Yew Pei Ling
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia
| | - Wan Zaidah Abdullah
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Ahmad Zakwan Mustafa
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Swee-Yong Pung
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia
| | - Fei-Yee Yeoh
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia.
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28
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Nimjee SM, Dornbos D, Pitoc GA, Wheeler DG, Layzer JM, Venetos N, Huttinger A, Talentino SE, Musgrave NJ, Moody H, Rempel RE, Jones C, Carlisle K, Wilson J, Bratton C, Joseph ME, Khan S, Hoffman MR, Sommerville L, Becker RC, Zweier JL, Sullenger BA. Preclinical Development of a vWF Aptamer to Limit Thrombosis and Engender Arterial Recanalization of Occluded Vessels. Mol Ther 2019; 27:1228-1241. [PMID: 30987839 DOI: 10.1016/j.ymthe.2019.03.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 03/08/2019] [Accepted: 03/25/2019] [Indexed: 11/18/2022] Open
Abstract
Endothelial surface and circulating glycoprotein von Willebrand factor (vWF) regulates platelet adhesion and is associated with thrombotic diseases, including ischemic stroke, myocardial infarction, and peripheral vascular disease. Thrombosis, as manifested in these diseases, is the leading cause of disability and death in the western world. Current parenteral antithrombotic and thrombolytic agents used to treat these conditions are limited by a short therapeutic window, irreversibility, and major risk of hemorrhage. To overcome these limitations, we developed a novel anti-vWF aptamer, called DTRI-031, that selectively binds and inhibits vWF-mediated platelet adhesion and arterial thrombosis while enabling rapid reversal of this antiplatelet activity by an antidote oligonucleotide (AO). Aptamer DTRI-031 exerts dose-dependent inhibition of platelet aggregation and thrombosis in whole blood and mice, respectively. Moreover, DTRI-031 can achieve potent vascular recanalization of platelet-rich thrombotic occlusions in murine and canine carotid arteries. Finally, DTRI-031 activity is rapidly (<5 min) and completely reversed by AO administration in a murine saphenous vein hemorrhage model, and murine toxicology studies indicate the aptamer is well tolerated. These findings suggest that targeting vWF with an antidote-controllable aptamer potentially represents an effective and safer treatment for thrombosis patients having platelet-rich arterial occlusions in the brain, heart, or periphery.
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Affiliation(s)
- Shahid M Nimjee
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA.
| | - David Dornbos
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - George A Pitoc
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Debra G Wheeler
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Juliana M Layzer
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Nicholas Venetos
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Allyson Huttinger
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Spencer E Talentino
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Nicholas J Musgrave
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Holly Moody
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Rachel E Rempel
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Cheyenne Jones
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Kendyl Carlisle
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Jenna Wilson
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Camille Bratton
- Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Matthew E Joseph
- Department of Surgery, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Shoeb Khan
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Maureane R Hoffman
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Laura Sommerville
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Richard C Becker
- Department of Medicine, University of Cincinnati Medical Center, Cincinnati, OH 45219, USA
| | - Jay L Zweier
- Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH 43210, USA
| | - Bruce A Sullenger
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.
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29
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Murakami D, Mawatari N, Sonoda T, Kashiwazaki A, Tanaka M. Effect of the Molecular Weight of Poly(2-methoxyethyl acrylate) on Interfacial Structure and Blood Compatibility. Langmuir 2019; 35:2808-2813. [PMID: 30673282 DOI: 10.1021/acs.langmuir.8b02971] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The blood-compatible polymer poly(2-methoxyethyl acrylate) (PMEA) is composed of nanometer-scale interfacial structures because of the phase separation of the polymer and water at the PMEA/phosphate-buffered saline (PBS) interface. We synthesized PMEA with four different molecular weights (19, 30, 44, and 183 kg/mol) to investigate the effect of the molecular weight on the interfacial structures and blood compatibility. The amounts of intermediate water and fibrinogen adsorption were not affected by the molecular weight of PMEA. In contrast, the degree of denaturation of adsorbed fibrinogen molecules and platelet adhesion increased as the molecular weight increased. Atomic force microscopy observation revealed that the domain size of the microphase separation structures observed at the PMEA/PBS interfaces drastically (nearly 3 times in the mean area of a domain) changed with the molecular weight. PMEA with a lower molecular weight showed a smaller polymer-rich domain size, as expected on the basis of the microphase separation of polymer-rich and water-rich domains. The small domain size suppressed the aggregation and denaturation of adsorbed fibrinogen molecules because only a few fibrinogen molecules were adsorbed on a domain. Increasing the domain size enhanced the denaturation of adsorbed fibrinogen molecules. Controlling the interfacial structures is crucial for ensuring the blood compatibility of polymer interfaces.
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Affiliation(s)
| | | | | | | | - Masaru Tanaka
- Frontier Center for Organic System Innovations , Yamagata University , 4-3-16 Jonan , Yonezawa , Yamagata 992-8510 , Japan
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30
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Abstract
For the acquisition of blood-compatible materials, various hydrophilic polymers for surface modification have been examined. Among them, polymers with a representative phospholipid polar group, the phosphorylcholine (PC) group, are a successful example. These polymers were designed from inspiration of the cell membrane surface and provide protein adsorption resistance even following contact with plasma. This important property is based on the unique hydration state of water molecules surrounding hydrated polymer; in other words, water molecules weakly interact with the polymers and maintain their favorable cluster structure through hydrogen bonding. These polymers are not only hydrophilic, but also electrically neutral, important characteristics which make hydrogen bonding with water molecules less likely to occur and avoid hydrophobic interactions. Phosphorylcholine groups and other zwitterionic structures are significant as hydrophilic functional groups meeting these important requirements. In this review, blood compatibility of a polymer having a PC group is introduced in relation to its hydration structure, followed by a description of the applications of this polymer to cardiovascular medical devices.
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Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
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31
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Chou C, Syu S, Chang JH, Aimar P, Chang Y. Bioinspired Pseudozwitterionic Hydrogels with Bioactive Enzyme Immobilization via pH-Responsive Regulation. Langmuir 2019; 35:1909-1918. [PMID: 30343571 DOI: 10.1021/acs.langmuir.8b02483] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydrogels are hydrated networks of flexible polymers with versatile biomedical applications, and their resistance to nonspecific protein adsorption is critical. On the other hand, functionalization with other biomacromolecules would greatly enhance their biotechnological potential. The aim of this research is to prepare low fouling hydrogel polymers for selective protein immobilization. Initially, hydrogels were prepared by controlling the composition ratios of 2-carboxyethyl acrylate (CA) and 2-dimethylaminoethyl methacrylate (DMAEMA) monomers in an N, N-methylene-bis-acrylamide (NMBA) cross-linked free radical polymerization reaction. This series of hydrogels (C1D9 to C9D1) were then analyzed by X-ray photoelectron spectroscopy (XPS) and dynamic laser scattering to confirm the actual polymer ratios and surface charge. When the composition ratio was set at CA:6 vs DMEAMA:4 (C6D4), the hydrogel showed nearly neutral surface charge and an equivalent reaction ratio of CA vs DMAEMA in the hydrogel. Subsequent analysis showed excellent antifouling properties, low blood cell adhesion, hemocompatibility, and platelet deactivation. Moreover, this hydrogel exhibited pH responsiveness to protein adsorption and was then used to facilitate the immobilization of lipase as an indication of active protein functionalization while still maintaining a low fouling status. In summary, a mixed-charge nonfouling pseudozwitterionic hydrogel could be prepared, and its pH-responsive adsorption holds potential for designing a biocompatible tissue engineering matrix or membrane enzyme reactors.
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Affiliation(s)
- Chungjung Chou
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli District , Taoyuan 320 , Taiwan , R.O.C
| | - Sioujyuan Syu
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli District , Taoyuan 320 , Taiwan , R.O.C
| | - Jen-Hsuan Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli District , Taoyuan 320 , Taiwan , R.O.C
| | - Pierre Aimar
- Laboratoire de Génie Chimique , Université Paul Sabatier , 118 Route de Narbonne , 31062 Toulouse , Cedex 9 , France
| | - Yung Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli District , Taoyuan 320 , Taiwan , R.O.C
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32
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Xin X, Li P, Zhu Y, Shi L, Yuan J, Shen J. Mussel-Inspired Surface Functionalization of PET with Zwitterions and Silver Nanoparticles for the Dual-Enhanced Antifouling and Antibacterial Properties. Langmuir 2019; 35:1788-1797. [PMID: 30089363 DOI: 10.1021/acs.langmuir.8b01603] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, we designed and constructed a dual functional surface with antimicrobial and antifouling abilities to prevent protein and bacterial attachment that are significant challenges in biomedical devices. Primary amino-group-capped sulfobetaine of DMMSA was synthesized and then grafted onto polydopamine pretreated PET sheets via click chemistry. The sheets were subsequently immersed into silver ion solution, in which the absorbed silver ions were reduced to silver nanoparticles (AgNPs) in situ by a polydopamine layer. The antifouling assays demonstrated that the resultant PET/DMMSA/AgNPs sheets exhibited great antifouling performances against bovine serum albumin (BSA), bovine fibrinogen (BFG), platelets, and bacteria, the critical proteins/microorganisms leading to implant failure. The antibacterial data suggested that the sheets had dual functions as inhibitors of bacterial growth and bactericide and could efficiently delay the biofilm formation. This repelling and killing approach is green and simple, with potential biomedical applications.
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Affiliation(s)
- Xuanxuan Xin
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Pengfei Li
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Yinyan Zhu
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Leigang Shi
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Jiang Yuan
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Jian Shen
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
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33
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O’Brien KT, Golla K, Kranjc T, O’Donovan D, Allen S, Maguire P, Simpson JC, O’Connell D, Moran N, Shields DC. Computational and experimental analysis of bioactive peptide linear motifs in the integrin adhesome. PLoS One 2019; 14:e0210337. [PMID: 30689642 PMCID: PMC6349357 DOI: 10.1371/journal.pone.0210337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/20/2018] [Indexed: 12/15/2022] Open
Abstract
Therapeutic modulation of protein interactions is challenging, but short linear motifs (SLiMs) represent potential targets. Focal adhesions play a central role in adhesion by linking cells to the extracellular matrix. Integrins are central to this process, and many other intracellular proteins are components of the integrin adhesome. We applied a peptide network targeting approach to explore the intracellular modulation of integrin function in platelets. Firstly, we computed a platelet-relevant integrin adhesome, inferred via homology of known platelet proteins to adhesome components. We then computationally selected peptides from the set of platelet integrin adhesome cytoplasmic and membrane adjacent protein-protein interfaces. Motifs of interest in the intracellular component of the platelet integrin adhesome were identified using a predictor of SLiMs based on analysis of protein primary amino acid sequences (SLiMPred), a predictor of strongly conserved motifs within disordered protein regions (SLiMPrints), and information from the literature regarding protein interactions in the complex. We then synthesized peptides incorporating these motifs combined with cell penetrating factors (tat peptide and palmitylation for cytoplasmic and membrane proteins respectively). We tested for the platelet activating effects of the peptides, as well as their abilities to inhibit activation. Bioactivity testing revealed a number of peptides that modulated platelet function, including those derived from α-actinin (ACTN1) and syndecan (SDC4), binding to vinculin and syntenin respectively. Both chimeric peptide experiments and peptide combination experiments failed to identify strong effects, perhaps characterizing the adhesome as relatively robust against within-adhesome synergistic perturbation. We investigated in more detail peptides targeting vinculin. Combined experimental and computational evidence suggested a model in which the positively charged tat-derived cell penetrating part of the peptide contributes to bioactivity via stabilizing charge interactions with a region of the ACTN1 negatively charged surface. We conclude that some interactions in the integrin adhesome appear to be capable of modulation by short peptides, and may aid in the identification and characterization of target sites within the complex that may be useful for therapeutic modulation.
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Affiliation(s)
- Kevin T. O’Brien
- School of Medicine, University College Dublin, Dublin, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Kalyan Golla
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Tilen Kranjc
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- School of Biology and Environment Science, University College Dublin, Dublin, Ireland
| | - Darragh O’Donovan
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Seamus Allen
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Patricia Maguire
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Jeremy C. Simpson
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- School of Biology and Environment Science, University College Dublin, Dublin, Ireland
| | - David O’Connell
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Niamh Moran
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Denis C. Shields
- School of Medicine, University College Dublin, Dublin, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
- * E-mail:
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34
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Xu LC, Meyerhoff ME, Siedlecki CA. Blood coagulation response and bacterial adhesion to biomimetic polyurethane biomaterials prepared with surface texturing and nitric oxide release. Acta Biomater 2019; 84:77-87. [PMID: 30471478 PMCID: PMC6549232 DOI: 10.1016/j.actbio.2018.11.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/10/2018] [Accepted: 11/20/2018] [Indexed: 12/26/2022]
Abstract
A dual functional polyurethane (PU) film that mimics aspects of blood vessel inner surfaces by combining surface texturing and nitric oxide (NO) release was fabricated through a soft lithography two-stage replication process. The fabrication of submicron textures on the polymer surface was followed by solvent impregnation with the NO donor, S-nitroso-N-acetylpenicillamine (SNAP). An in vitro plasma coagulation assay showed that the biomimetic surface significantly increased the plasma coagulation time and also exhibited reduced platelet adhesion and activation, thereby reducing the risk of blood coagulation and thrombosis. A contact activation assay for coagulation factor XII (FXII) demonstrated that both NO release and surface texturing also reduced FXII contact activation, which contributes to the inhibition of plasma coagulation. The biomimetic surface was also evaluated for bacterial adhesion in plasma and results demonstrate that this combined strategy enables a synergistic effect to reduce bacterial adhesion of Staphylococcus epidermidis, Staphylococcus aureus, and Pseudomonas aeruginosa microorganisms. The results strongly suggest that the biomimetic modification with surface texturing and NO release provides an effective approach to improve the biocompatibility of polymeric materials in combating thrombosis and microbial infection. STATEMENT OF SIGNIFICANCE: (1) Developed a dual functional polyurethane (PU) film that mimics blood vessel inner surface by combining surface texturing and nitric oxide (NO) release for combatting biomaterial associated thrombosis and microbial infection. (2) Studied the blood coagulation response and bacterial adhesion to such biomimetic PU surfaces, and demonstrated that the combination of surface texturing and NO release synergistically reduced the platelet adhesion and bacterial adhesion in plasma, providing an effective approach to improve the biocompatibility of biomaterials used in blood-contacting medical devices. (3) The NO releasing surface significantly inhibits the plasma coagulation via the reduction of contact activation of FXII, indicating the multifunctional roles of NO in improving the biocompatibility of biomaterials in blood-contacting medical devices.
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Affiliation(s)
- Li-Chong Xu
- Departments of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, USA.
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Christopher A Siedlecki
- Departments of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, USA; Departments of Bioengineering, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, USA
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35
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Abstract
Platelet receptor GPVI plays an important role in platelet firm adhesion to site of vascular injury. Receptor ligation with collagen, in company with other agonist/receptor interactions, augments inside out signaling pathways leading to platelet aggregation and thrombus formation. As GPVI expression is significantly modulated by ectodomain shedding, this study aimed to examine whether GPVI shedding functionally affects collagen-mediated platelet activation during storage. 6 PRP-platelet concentrates were subjected to adhesion analysis on collagen matrix under mild stirring condition as well as collagen-induced aggregation on day 1, 3 and 5 post-storage. Concurrently, platelet supernatants of same samples were fractionated by ultra-centrifugation and obtained micro-particle-free samples were subjected to western blot analysis for the evaluation of GPVI shedding. We showed a direct correlation between collagen-dependent platelet aggregation and adhesion (r = 0.8, p = 0.0001). The increasing levels of GPVI shedding during storage were in reverse correlation with collagen-induced platelet aggregation (r = - 0.82, p = 0.0004) which was significantly reducing during storage. Platelet adhesion to collagen matrix significantly decreased post-storage while it was also reversely correlated with the levels of GPVI shedding during 5 days storage of platelets (r = - 0.69, p = 0.002). Data presented here demonstrated that progressive shedding of surface adhesion receptor GPVI can affect its functional activities in stored platelets. Thereby considering the crucial role of GPVI in platelet adhesion to the site of injury, whether the therapeutic efficacy of banked platelet products could be influenced by storage-dependent shedding of this receptor, remains to be answered in future studies.
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Affiliation(s)
- Ehteramolsadat Hosseini
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Pezhman Beshkar
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Mehran Ghasemzadeh
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, 3004, Australia.
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization Building, Hemmat Exp. Way, Next to the Milad Tower, PO Box: 14665-1157, Tehran, Iran.
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36
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Li Q, Li J, Liao G, Xu Z. The preparation of heparin-like hyperbranched polyimides and their antithrombogenic, antibacterial applications. J Mater Sci Mater Med 2018; 29:126. [PMID: 30056507 DOI: 10.1007/s10856-018-6137-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
1,3,5-Tris(4-aminophenoxy) benzene (TAPOB) and 2,2-bis [4-(3,4-dicarboxyphenoxy) phenyl] propane dianhydride (BPADA) were used to synthesize an amino-terminated hyperbranched polyimide (AM-HBPI). Then, the 2-methacryloyloxyethyl phosphorylcholine-modified hyperbranched polyimide (HBPI-MPC) was obtained through the graft modification of MPC onto AM-HBPI by Michael addition. The infrared spectroscopy and X-ray photoelectron spectroscopy spectra showed MPC molecules were successfully grafted onto the HBPI molecules. The HBPI-MPC films exhibited slightly decreased thermal stabilities with 5% weight loss temperature in the range of of 418-483 °C in nitrogen, compared with the pure HBPI film. With the increase of MPC grafting amount, the static water contact angles decreased from average 84.0° of the pure HBPI film to average 45.0° of the HBPI-MPC film with 20% MPC. Meanwhile, the increased surface roughness of the HBPI-MPC films increased the contact areas with the platelets, enhancing their anticoagulant efficiency. The number of platelet adhesion declined and the shape of platelet changed from flat to round. The recalcification times grew from average 300 s of pure HBPI to average 551 s of the HBPI-MPC film with 20% MPC, indicating improved anticoagulant properties and biocompatibility. Bacterial adhesion test also demonstrated the number of bacterial adhesion was significantly reduced and antibacterial properties were improved. Thus, the HBPI-MPC films have great application prospects as biomedical anticoagulant materials.
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Affiliation(s)
- Qing Li
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, 530008, Nanning, Guangxi, China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials; Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, 430062, Wuhan, Hubei, China
| | - Jing Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials; Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, 430062, Wuhan, Hubei, China
| | - Guangfu Liao
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-Sen University, 510275, Guangzhou, China
| | - Zushun Xu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials; Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, 430062, Wuhan, Hubei, China.
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Witkowska J, Sowińska A, Czarnowska E, Płociński T, Rajchel B, Tarnowski M, Wierzchoń T. Structure and properties of composite surface layers produced on NiTi shape memory alloy by a hybrid method. J Mater Sci Mater Med 2018; 29:110. [PMID: 30019236 PMCID: PMC6061091 DOI: 10.1007/s10856-018-6118-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
A hybrid process that combines oxidation under glow-discharge conditions with ion beam-assisted deposition (IBAD) has been applied to mechanically polished NiTi shape memory alloy in order to produce composite surface layers consisting of a TiO2 layer and an external carbon coating with an addition of silver. The produced surface layers a-C(Ag) + TiO2 type have shown increased surface roughness, improved corrosion resistance, altered wettability, and surface free energy, as well as reduced platelet adhesion, aggregation, and activation in comparison to NiTi alloy in initial state. Such characteristics can be of great benefit for cardiac applications.
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Affiliation(s)
- Justyna Witkowska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507, Warsaw, Poland.
| | - Agnieszka Sowińska
- Pathology Department, Children's Memorial Health Institute, Dzieci Polskich 20, 04-730, Warsaw, Poland
| | - Elżbieta Czarnowska
- Pathology Department, Children's Memorial Health Institute, Dzieci Polskich 20, 04-730, Warsaw, Poland
| | - Tomasz Płociński
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507, Warsaw, Poland
| | - Bogusław Rajchel
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342, Cracow, Poland
| | - Michał Tarnowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507, Warsaw, Poland
| | - Tadeusz Wierzchoń
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507, Warsaw, Poland
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Chen J, Ding L, He C, Chen D, Deng SR, Gong F, Li Y. [Dynamical Analysis of the Inhibitory Effect of Aspirin and Clopidogrel on Platelet Adhesion and Aggregation for Healthy People under Physiological Flow Condition by Microfluidic Chip Technology]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2018; 40:299-307. [PMID: 29978783 DOI: 10.3881/j.issn.1000-503x.2018.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective To explore the inhibitory effect of aspirin and clopidogrel on platelet adhesion and aggregation behaviors under the physiological flow condition using microfluidic chip technology for health volunteers. Methods Peripheral venous blood samples collected from twelve randomly recruited health volunteers were treated with 20 μmol/L acetylsalicylic acid,50 μmol/L 2-methlthioadenosine-5'-monophosphate triethylammonium salt,and their combination,respectively,with untreated blood samples being control group. The blood samples were flowed through a microchannel modified with type I collagen protein at a physiological relevant shear rate of 1000 s-1 for 300 s,while the fluorescent images of platelet aggregations were dynamic captured using a microscope. Based on the images,the platelet coverage rates were calculated and used as quantitative parameters for evaluating platelet adhesion and aggregation behaviors. Results Under a flow condition of 1000 s-1 shear rate,an expected in vivo-like platelet adhesion and aggregation behaviors were observed at the surfaces of collagen proteins for control blood samples. Aspirin alone or clopidogrel alone suppressed platelet adhesion and aggregation at the later period of flow(200-300 s),while the combination of aspirin and clopidogrel reduced the adhesion numbers of platelets at the earlier stage of flow(≤150 s) and compromised the stability of platelet aggregation at the later period of flow(200-300 s). The combination showed synergistic effect in inhibiting platelet aggregation. Furthermore,such inhibitory effect was heterogeneous among 12 volunteers. Conclusion This simple microfluidic technology can offer a new technical platform for analyzing the inhibitory effect of antiplatelet drugs.
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Affiliation(s)
- Jing Chen
- Central Laboratory,Yongchuan Hospital,Chongqing Medical University,Chongqing 402160,China
| | - Ling Ding
- Yongchuan Sub-center,Chongqing Blood Center,Chongqing 402160,China
| | - Cui He
- Central Laboratory,Yongchuan Hospital,Chongqing Medical University,Chongqing 402160,China
| | - Dan Chen
- Central Laboratory,Yongchuan Hospital,Chongqing Medical University,Chongqing 402160,China
| | - Su-Rong Deng
- Central Laboratory,Yongchuan Hospital,Chongqing Medical University,Chongqing 402160,China
| | - Fang Gong
- Central Laboratory,Yongchuan Hospital,Chongqing Medical University,Chongqing 402160,China
| | - Yuan Li
- Central Laboratory,Yongchuan Hospital,Chongqing Medical University,Chongqing 402160,China
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Park DS, Bae IH, Jeong MH, Lim KS, Sim DS, Hong YJ, Lee SY, Jang EJ, Shim JW, Park JK, Lim HC, Kim HB. In vitro and in vivo evaluation of a novel polymer-free everolimus-eluting stent by nitrogen-doped titanium dioxide film deposition. Mater Sci Eng C Mater Biol Appl 2018; 91:615-623. [PMID: 30033294 DOI: 10.1016/j.msec.2018.05.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 05/09/2018] [Accepted: 05/17/2018] [Indexed: 01/17/2023]
Abstract
Inflammation and thrombosis are linked to the use of polymer-based drug-eluting stents (DES). The aim of this study was to develop a polymer-free everolimus (EVL)-eluting stent using nitrogen-doped titanium dioxide (N-TiO2) and verify its efficacy by in vitro and in vivo assessment in a porcine coronary model. Various analytical approaches such as scanning electron microscopy and atomic force microscopy, electron spectroscopy, Fourier transform infrared spectrometry and contact angle measurement were employed for the characterization. As a part of biocompatibility assessment, platelet adhesion and smooth muscle cell (SMC) proliferation were examined. Bare metal stent (BMS), N-TiO2 stent, everolimus-eluting N-TiO2 (N-TiO2-EVL) stent, and commercialized EVL-eluting stent (EES) were randomly placed in forty coronary arteries in twenty pigs. After four weeks of implantation, the stents were subjected to histological and quantitative analysis. The N-TiO2 film used in this study was well coated without any cracks or peeling. Surface hydrophilicity (88.8% of angle decrement) could be associated with the decrease in surface roughness post N-TiO2 deposition (37.0%). The platelet adhesion on the N-TiO2 surfaces was less than that on the BMS surface. The proliferation of SMC was suppressed in the N-TiO2-EVL group (30.2%) but not in the BMS group. In the animal study, the percent area restenosis was significantly decreased in the N-TiO2-EVL group compared to that in the BMS group. The results (BMS; 47.0 ± 11.00%, N-TiO2-EVL; 31.7 ± 10.50%, and EES; 29.1 ± 11.21%, n = 10, p < 0.05) were almost at par with those of the commercialized EVL-eluting stent. The introduction of N-TiO2 deposition during fabrication of polymer-free DES may be an efficient accessorial process for preventing in-stent restenosis and thrombosis.
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Affiliation(s)
- Dae Sung Park
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Korea Cardiovascular Stent Research Institute, Jangsung 57248, Republic of Korea; Research Institute of Medical Sciences, Chonnam National University, Republic of Korea
| | - In-Ho Bae
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Korea Cardiovascular Stent Research Institute, Jangsung 57248, Republic of Korea
| | - Myung Ho Jeong
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Korea Cardiovascular Stent Research Institute, Jangsung 57248, Republic of Korea; Department of Cardiology, Chonnam National University Hospital, Gwangju 61469, Republic of Korea.
| | - Kyung Seob Lim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang 28116, Chungbuk, Republic of Korea
| | - Doo Sun Sim
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Department of Cardiology, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Young Joon Hong
- Department of Cardiology, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - So-Youn Lee
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Korea Cardiovascular Stent Research Institute, Jangsung 57248, Republic of Korea
| | - Eun Jae Jang
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Korea Cardiovascular Stent Research Institute, Jangsung 57248, Republic of Korea
| | - Jae-Won Shim
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju 61469, Republic of Korea; Korea Cardiovascular Stent Research Institute, Jangsung 57248, Republic of Korea
| | - Jun-Kyu Park
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Han Chul Lim
- Department of Cardiology, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
| | - Han Byul Kim
- Department of Cardiology, Chonnam National University Hospital, Gwangju 61469, Republic of Korea
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Fu X, Ning JP. Synthesis and biocompatibility of an argatroban-modified polysulfone membrane that directly inhibits thrombosis. J Mater Sci Mater Med 2018; 29:66. [PMID: 29744595 DOI: 10.1007/s10856-018-6054-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
Anticoagulation therapy plays a vital role in the prevention of blood clot formation during hemodialysis and hemofiltration, especially for critical care patients. Here, we synthesized a novel argatroban (Arg)-modified polysulfone (PSf) membrane for anticoagulation. Arg was grafted onto the PSF membrane via chemical modification to increase membrane hydrophilicity. Protein adsorption, coagulation, as well as activation of platelets and complement systems were greatly reduced on the Arg-modified PSf membrane. Thus, the recalcification time and the activated partial thrombin time (APTT) were increased after the modification. In comparison with the pristine PSf membrane, the Arg-modified PSf membrane showed better hemocompatibility and anticoagulation properties, indicating its potential for applications in hemodialysis and hemofiltration. Modification of the PSf membrane has been investigated in attempts to further enhance the anticoagulation properties of the hemodialysis membranes, including a heparin-modified PSf membrane. However, heparin can inhibit plasma-free thrombin, and cause the occurrence of heparin-induced thrombocytopenia (HIT), which increases the risk of bleeding during dialysis in critical care patients. To address this problem, we modified PSf membrane with as a novel direct thrombin inhibitors, argatroban (Arg). It can reversibly bind to thrombin, inhibiting not only the plasma-free thrombin in the blood, but also clot-bound thrombin.
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Affiliation(s)
- Xiao Fu
- Department of Hematology, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jian-Ping Ning
- Department of Nephropathy, Xiangya Hospital, Central South University, Changsha, 410008, China.
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Modi A, Verma SK, Bellare J. Extracellular matrix-coated polyethersulfone-TPGS hollow fiber membranes showing improved biocompatibility and uremic toxins removal for bioartificial kidney application. Colloids Surf B Biointerfaces 2018; 167:457-467. [PMID: 29723817 DOI: 10.1016/j.colsurfb.2018.04.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/15/2018] [Accepted: 04/23/2018] [Indexed: 12/11/2022]
Abstract
In this study, L-3, 4-dihydroxyphenylalanine and human collagen type IV were coated over the outer surface of the custom-made hollow fiber membranes (HFMs) with the objective of simultaneously improving biocompatibility leading to proliferation of human embryonic kidney cells-293 (HEK-293) and improving separation of uremic toxins, thereby making them suitable for bioartificial kidney application. Physicochemical characterization showed the development of coated HFMs, resulting in low hemolysis (0.25 ± 0.10%), low SC5b-9 marker level (7.95 ± 1.50 ng/mL), prolonged blood coagulation time, and minimal platelet adhesion, which indicated their improved human blood compatibility. Scanning electron microscopy and confocal laser scanning microscopy showed significantly improved attachment and proliferation of HEK-293 cells on the outer surface of the coated HFMs, which was supported by the results of glucose consumption and MTT cell proliferation assay. The solute rejection profile of these coated HFMs was compared favorably with that of the commercial dialyzer membranes. These coated HFMs showed a remarkable 1.6-3.2 fold improvement in reduction ratio of uremic toxins as compared to standard dialyzer membranes. These results clearly demonstrated that these extracellular matrix-coated HFMs can be a potential biocompatible substrate for the attachment and proliferation of HEK-293 cells and removal of uremic toxins from the simulated blood, which may find future application for bioartificial renal assist device.
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Affiliation(s)
- Akshay Modi
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Surendra Kumar Verma
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Jayesh Bellare
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India; Wadhwani Research Centre for Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India; Centre for Research in Nanotechnology & Science, Indian Institute of Technology Bombay, Mumbai 400076, India.
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Ju L, McFadyen JD, Al-Daher S, Alwis I, Chen Y, Tønnesen LL, Maiocchi S, Coulter B, Calkin AC, Felner EI, Cohen N, Yuan Y, Schoenwaelder SM, Cooper ME, Zhu C, Jackson SP. Compression force sensing regulates integrin α IIbβ 3 adhesive function on diabetic platelets. Nat Commun 2018; 9:1087. [PMID: 29540687 PMCID: PMC5852038 DOI: 10.1038/s41467-018-03430-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 02/09/2018] [Indexed: 01/25/2023] Open
Abstract
Diabetes is associated with an exaggerated platelet thrombotic response at sites of vascular injury. Biomechanical forces regulate platelet activation, although the impact of diabetes on this process remains ill-defined. Using a biomembrane force probe (BFP), we demonstrate that compressive force activates integrin αIIbβ3 on discoid diabetic platelets, increasing its association rate with immobilized fibrinogen. This compressive force-induced integrin activation is calcium and PI 3-kinase dependent, resulting in enhanced integrin affinity maturation and exaggerated shear-dependent platelet adhesion. Analysis of discoid platelet aggregation in the mesenteric circulation of mice confirmed that diabetes leads to a marked enhancement in the formation and stability of discoid platelet aggregates, via a mechanism that is not inhibited by therapeutic doses of aspirin and clopidogrel, but is eliminated by PI 3-kinase inhibition. These studies demonstrate the existence of a compression force sensing mechanism linked to αIIbβ3 adhesive function that leads to a distinct prothrombotic phenotype in diabetes.
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Affiliation(s)
- Lining Ju
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - James D McFadyen
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Saheb Al-Daher
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Imala Alwis
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Yunfeng Chen
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Coulter Department of Biomedical Engineering; and Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, 92037, CA, USA
| | - Lotte L Tønnesen
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Sophie Maiocchi
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
| | - Brianna Coulter
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
| | - Anna C Calkin
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
- Lipid Metabolism and Cardiometabolic Disease Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, 3004, Australia
| | - Eric I Felner
- Division of Pediatric Endocrinology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Neale Cohen
- Clinical Diabetes, Baker Heart and Diabetes Institute, Melbourne, Victoria, 3004, Australia
| | - Yuping Yuan
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Simone M Schoenwaelder
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, 3004, Victoria, Australia
| | - Cheng Zhu
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia.
- Coulter Department of Biomedical Engineering; and Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Shaun P Jackson
- Heart Research Institute, Thrombosis Group, Newtown, New South Wales, 2042, Australia.
- Charles Perkins Centre, Level 3E Cardiovascular Division, The University of Sydney, New South Wales, 2006, Australia.
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia.
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, 92037, CA, USA.
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Chi C, Sun B, Zhou N, Zhang M, Chu X, Yuan P, Shen J. Anticoagulant polyurethane substrates modified with poly(2-methacryloyloxyethyl phosphorylcholine) via SI-RATRP. Colloids Surf B Biointerfaces 2018; 163:301-308. [PMID: 29329075 DOI: 10.1016/j.colsurfb.2018.01.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 12/31/2017] [Accepted: 01/06/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Cheng Chi
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Baohong Sun
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Ninglin Zhou
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China; Nanjing Zhou Ninglin Advanced Materials Technology Company Limited, Nanjing 211505, China.
| | - Ming Zhang
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Xiaohong Chu
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Ping Yuan
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Jian Shen
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China.
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Holbrook L, Sandhar GK, Sasikumar P, Schenk MP, Stainer AR, Sahli KA, Flora GD, Bicknell AB, Gibbins JM. A humanized monoclonal antibody that inhibits platelet-surface ERp72 reveals a role for ERp72 in thrombosis. J Thromb Haemost 2018; 16:367-377. [PMID: 29052936 PMCID: PMC5838528 DOI: 10.1111/jth.13878] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Indexed: 11/26/2022]
Abstract
Essentials ERp72 is a thiol isomerase enzyme. ERp72 levels increase at the platelet surface during platelet activation. We generated a humanized monoclonal antibody which blocks ERp72 enzyme activity (anti-ERp72). Anti-ERp72 inhibits platelet functional responses and thrombosis. SUMMARY Background Within the endoplasmic reticulum, thiol isomerase enzymes modulate the formation and rearrangement of disulfide bonds in newly folded proteins entering the secretory pathway to ensure correct protein folding. In addition to their intracellular importance, thiol isomerases have been recently identified to be present on the surface of a number of cell types where they are important for cell function. Several thiol isomerases are known to be present on the resting platelet surface, including PDI, ERp5 and ERp57, and levels are increased following platelet activation. Inhibition of the catalytic activity of these enzymes results in diminished platelet function and thrombosis. Aim We previously determined that ERp72 is present at the resting platelet surface and levels increase upon platelet activation; however, its functional role on the cell surface was unclear. We aimed to investigate the role of ERp72 in platelet function and its role in thrombosis. Methods Using HuCAL technology, fully humanized Fc-null anti-ERp72 antibodies were generated. Eleven antibodies were screened for their ability to inhibit ERp72 activity and the most potent inhibitory antibody (anti-ERp72) selected for further testing in platelet functional assays. Results and conclusions Anti-ERp72 inhibited platelet aggregation, granule secretion, calcium mobilisation and integrin activation, revealing an important role for extracellular ERp72 in the regulation of platelet activation. Consistent with this, infusion of anti-ERp72 into mice protected against thrombosis.
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Affiliation(s)
- L.‐M. Holbrook
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - G. K. Sandhar
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - P. Sasikumar
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - M. P. Schenk
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - A. R. Stainer
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - K. A. Sahli
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - G. D. Flora
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - A. B. Bicknell
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
| | - J. M. Gibbins
- School of Biological SciencesInstitute for Cardiovascular and Metabolic ResearchUniversity of ReadingReadingBerkshireUK
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Xu LC, Li Z, Tian Z, Chen C, Allcock HR, Siedlecki CA. A new textured polyphosphazene biomaterial with improved blood coagulation and microbial infection responses. Acta Biomater 2018; 67:87-98. [PMID: 29229544 DOI: 10.1016/j.actbio.2017.11.056] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/20/2017] [Accepted: 11/30/2017] [Indexed: 12/16/2022]
Abstract
A new poly[bis(octafluoropentoxy) phosphazene] (OFP) was synthesized for the purpose of blood contacting medical devices. OFP was further either developed into crosslinkable polyphosphazene (X-OFP) or blended with polyurethane (PU) as the mixture (OFP/PU) for improvement of mechanical property of polyphosphazene polymers. All the materials were fabricated as smooth films or further textured with submicron pillars for the assay of antimicrobial and antithrombotic properties. Results showed that crosslinkable OFP (X-OFP) and blends of OFP/PU successfully improved the mechanical strength of OFP and fewer defects of pillars were found on the textured polyphosphazene surfaces. The antithrombotic experiments showed that polyphosphazene OFP materials reduced human Factor XII activation and platelet adhesion, thereby being resistant to plasma coagulation and thrombosis. The bacterial adhesion and biofilm experiments demonstrated that OFP materials inhibited staphylococcal bacterial adhesion and biofilm formation. The surface texturing further reduced the platelet adhesion and bacterial adhesion, and inhibited biofilm formation up to 23 days. The data suggested that textured OFP materials may provide a practical approach to improve the biocompatibility of current biomaterials in the application of blood contacting medical devices with significant reduction in risk of pathogenic infection and thrombosis. STATEMENT OF SIGNIFICANCE The thromboembolic events and microbial infection have been the significant barriers for the long term use of biomaterials in blood-contacting medical devices. The development of new materials with multiple functions including anti-thrombosis and antibacterial surfaces is a high research priority. This study synthesized new biostable and biocompatible polyphosphazene polymers, poly[bis(octafluoropentoxy)phosphazene] (OFP) and crosslinkable OFP, and successfully improved the mechanical strength of polyphosphazenes. Polymers were fabricated into textured films with submicron pillars on the surfaces. The antimicrobial and antithrombotic assays demonstrated that new materials combined with surface physical modification have significant reduction in risk of pathogenic infection and thrombosis, and improve the biocompatibility of current biomaterials in the application of blood-contacting medical devices. It would be interest to biomaterials and bioengineering related communities.
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Affiliation(s)
- Li-Chong Xu
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, United States.
| | - Zhongjing Li
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, United States
| | - Zhicheng Tian
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, United States
| | - Chen Chen
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, United States
| | - Harry R Allcock
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, United States
| | - Christopher A Siedlecki
- Department of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, United States; Department of Bioengineering, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, United States
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Plegue TJ, Kovach KM, Thompson AJ, Potkay JA. Stability of Polyethylene Glycol and Zwitterionic Surface Modifications in PDMS Microfluidic Flow Chambers. Langmuir 2018; 34:492-502. [PMID: 29231737 DOI: 10.1021/acs.langmuir.7b03095] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Blood-material interactions are crucial to the lifetime, safety, and overall success of blood contacting devices. Hydrophilic polymer coatings have been employed to improve device lifetime by shielding blood contacting materials from the natural foreign body response, primarily the intrinsic pathway of the coagulation cascade. These coatings have the ability to repel proteins, cells, bacteria, and other micro-organisms. Coatings are desired to have long-term stability, so that the nonthrombogenic and nonfouling effects gained are long lasting. Unfortunately, there exist limited studies which investigate their stability under dynamic flow conditions as encountered in a physiological setting. In addition, direct comparisons between multiple coatings are lacking in the literature. In this study, we investigate the stability of polyethylene glycol (PEG), zwitterionic sulfobetaine silane (SBSi), and zwitterionic polyethylene glycol sulfobetaine silane (PEG-SBSi) grafted by a room temperature, sequential flow chemistry process on polydimethylsiloxane (PDMS) over time under ambient, static fluid (no flow), and physiologically relevant flow conditions and compare the results to uncoated PDMS controls. PEG, SBSi, and PEG-SBSi coatings maintained contact angles below 20° for up to 35 days under ambient conditions. SBSi and PEG-SBSi showed increased stability and hydrophilicity after 7 days under static conditions. They also retained contact angles ≤40° for all shear rates after 7 days under flow, demonstrating their potential for long-term stability. The effectiveness of the coatings to resist platelet adhesion was also studied under physiological flow conditions. PEG showed a 69% reduction in adhered platelets, PEG-SBSi a significant 80% reduction, and SBSi a significant 96% reduction compared to uncoated control samples, demonstrating their potential applicability for blood contacting applications. In addition, the presented coatings and their stability under shear may be of interest in other applications including marine coatings, lab on a chip devices, and contact lenses, where it is desirable to reduce surface fouling due to proteins, cells, and other organisms.
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Affiliation(s)
- Thomas J Plegue
- VA Ann Arbor Healthcare System , Ann Arbor, Michigan 48105, United States
| | - Kyle M Kovach
- Department of Biomedical Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Alex J Thompson
- VA Ann Arbor Healthcare System , Ann Arbor, Michigan 48105, United States
- Department of Surgery, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Joseph A Potkay
- VA Ann Arbor Healthcare System , Ann Arbor, Michigan 48105, United States
- Department of Surgery, University of Michigan , Ann Arbor, Michigan 48109, United States
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Lehmann M, Ashworth K, Manco-Johnson M, Di Paola J, Neeves KB, Ng CJ. Evaluation of a microfluidic flow assay to screen for von Willebrand disease and low von Willebrand factor levels. J Thromb Haemost 2018; 16:104-115. [PMID: 29064615 PMCID: PMC5794217 DOI: 10.1111/jth.13881] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Indexed: 11/28/2022]
Abstract
Essentials von Willebrand factor (VWF) function is shear stress dependent. Platelet accumulation in a microfluidic assay correlates with VWF levels. The microfluidic assay discriminates type 1 von Willebrand disease from healthy controls. The microfluidic flow assay detects responses to therapeutic intervention (DDAVP). SUMMARY Background von Willebrand disease (VWD) is a mucocutaneous bleeding disorder with a reported prevalence of 1 in 10 000. von Willebrand factor (VWF) function and platelet adhesion are regulated by hemodynamic forces that are not integrated into most current clinical assays. Objective We evaluated whether a custom microfluidic flow assay (MFA) can screen for deficiencies in VWF in patients presenting with mucocutaneous bleeding. Methods Whole blood from individuals with mucocutaneous bleeding was assayed in a custom MFA. Results Thirty-two patients with type 1 VWD (10/32) or reported mucocutaneous bleeding were enrolled. The platelet adhesion velocity (r = 0.5978 for 750 s-1 and 0.6895 for 1500 s-1 ) and the maximum platelet surface area coverage (r = 0.5719 for 750 s-1 and 0.6633 for 1500 s-1 ) in the MFA correlated with VWF levels. Furthermore, the platelet adhesion velocity at 750 s-1 (type 1 VWD, mean 0.0009761, 95% confidence interval [CI] 0.0003404-0.001612; control, mean 0.003587, 95% CI 0.002455-0.004719) and at 1500 s-1 (type 1 VWD, mean 0.0003585, 95% CI 0.00003914-0.0006778; control, mean 0.003132, 95% CI 0.001565-0.004699) differentiated type 1 VWD from controls. Maximum platelet surface area coverage at 750 s-1 (type 1 VWD, mean 0.1831, 95% CI 0.03816-0.3281; control, mean 0.6755, 95% CI 0.471-0.88) and at 1500 s-1 (type 1 VWD, mean 0.07873, 95% CI 0.01689-0.1406; control, mean 0.6432, 95% CI 0.3607-0.9257) also differentiated type 1 VWD from controls. We also observed an improvement in platelet accumulation after 1-desamino-8-d-arginine vasopressin (DDAVP) treatment at 1500 s-1 (pre-DDAVP, mean 0.4784, 95% CI 0.1777-0.7791; post-DDAVP, mean 0.8444, 95% CI 0.7162-0.9726). Conclusions These data suggest that this approach can be used as a screening tool for VWD.
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Affiliation(s)
- Marcus Lehmann
- Chemical and Biological Engineering, Colorado School of Mines University of Colorado Denver, Aurora, CO, USA
| | | | - Marilyn Manco-Johnson
- Pediatrics, University of Colorado Denver University of Colorado Denver, Aurora, CO, USA
| | - Jorge Di Paola
- Pediatrics, University of Colorado Denver University of Colorado Denver, Aurora, CO, USA
- Human Medical Genetics and Genomics, University of Colorado Denver, Aurora, CO, USA
| | - Keith B. Neeves
- Chemical and Biological Engineering, Colorado School of Mines University of Colorado Denver, Aurora, CO, USA
- Pediatrics, University of Colorado Denver University of Colorado Denver, Aurora, CO, USA
| | - Christopher J. Ng
- Pediatrics, University of Colorado Denver University of Colorado Denver, Aurora, CO, USA
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Abstract
SummaryPlatelets play a primary role in thrombus formation after plaque rupture. Platelets recognize the exposed collagen via Von Willebrand factor (VWF) and become activated. Saratin, an inhibitor of the VWF-dependent binding of platelets to collagen, may reduce the thrombotic risk associated to atherosclerosis. Our objective was to evaluate the antithrombotic effects of local treatment with saratin on human atherosclerotic lesions. Thrombus formation was assessed by the deposition of 111Inplatelets on different human atherosclerotic lesions under three local shear conditions (800,1700 and 3400/s) with blood derived from catheterized pigs. Human atherosclerotic lesions were locally treated with saratin (30 µg/ml) at 37ºC for 5 min and placed in the chamber. Under stenotic shear conditions of 800/s, saratin significantly (p<0.05) reduced platelet deposition triggered by human denuded vessel wall (44%), fatty streaks (47%), severely damaged vessel (50%) and atherosclerotic plaque (57%). Thrombus characterization by immunohistochemistry showed also a reduction in fibrin deposition in treated vessels. These results suggest that the local site-specific treatment with saratin inhibits atherosclerotic plaque thrombogenicity at haemodynamic conditions typical of moderately stenotic coronary arteries.
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Affiliation(s)
- Gemma Vilahur
- Cardiovascular Research Center, ICCC-CSIC, Hospital de la Santa Creu i Sant Pau (U.A.B.), Barcelona, Spain
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Lee Y, Le Thi P, Seon GM, Ryu SB, Brophy CM, Kim Y, Park JC, Park KD, Cheung-Flynn J, Sung HJ. Heparin-functionalized polymer graft surface eluting MK2 inhibitory peptide to improve hemocompatibility and anti-neointimal activity. J Control Release 2017; 266:321-330. [PMID: 28987880 PMCID: PMC5723561 DOI: 10.1016/j.jconrel.2017.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/30/2017] [Accepted: 10/03/2017] [Indexed: 12/21/2022]
Abstract
The leading cause of synthetic graft failure includes thrombotic occlusion and intimal hyperplasia at the site of vascular anastomosis. Herein, we report a co-immobilization strategy of heparin and potent anti-neointimal drug (Mitogen Activated Protein Kinase II inhibitory peptide; MK2i) by using a tyrosinase-catalyzed oxidative reaction for preventing thrombotic occlusion and neointimal formation of synthetic vascular grafts. The binding of heparin-tyramine polymer (HT) onto the polycarprolactone (PCL) surface enhanced blood compatibility with significantly reduced protein absorption (64.7% decrease) and platelet adhesion (85.6% decrease) compared to bare PCL surface. When loading MK2i, 1) the HT depot surface gained high MK2i-loading efficiency through charge-charge interaction, and 2) this depot platform enabled long-term, controlled release over 4weeks (92-272μg/mL of MK2i). The released MK2i showed significant inhibitory effects on VSMC migration through down-regulated phosphorylation of target proteins (HSP27 and CREB) associated with intimal hyperplasia. In addition, it was found that the released MK2i infiltrated into the tissue with a cumulative manner in ex vivo human saphenous vein (HSV) model. This present study demonstrates that enzymatically HT-coated surface modification is an effective strategy to induce long-term MK2i release as well as hemocompatibility, thereby improving anti-neointimal activity of synthetic vascular grafts.
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Affiliation(s)
- Yunki Lee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Phuong Le Thi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Gyeung Mi Seon
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Seung Bae Ryu
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Colleen M Brophy
- Division of Vascular Surgery, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - YongTae Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Joyce Cheung-Flynn
- Division of Vascular Surgery, Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Hak-Joon Sung
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA; Severance Biomedical Science Institute, College of Medicine, Yonsei University, Seoul 03722, South Korea.
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Goudie MJ, Pant J, Handa H. Liquid-infused nitric oxide-releasing (LINORel) silicone for decreased fouling, thrombosis, and infection of medical devices. Sci Rep 2017; 7:13623. [PMID: 29051609 PMCID: PMC5648791 DOI: 10.1038/s41598-017-14012-9] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/03/2017] [Indexed: 01/15/2023] Open
Abstract
Recent reports on liquid-infused materials have shown promise in creating ultra-low fouling surfaces, but are limited in their ability to prevent bacterial proliferation and prevent platelet activation in blood-contacting applications. In this work, a liquid-infused nitric oxide-releasing (LINORel) material is created by incorporating the nitric oxide (NO) donor S-nitroso-acetylpenicillamine (SNAP) and silicone oil in commercial medical grade silicone rubber tubing through a solvent swelling process. This combination provides several key advantages over previous NO-releasing materials, including decreased leaching of NO donor, controlled release of NO, and maintenance of ultra-low fouling property of liquid-infused materials. The LINORel tubing reduces protein adhesion as observed using fluorescence imaging, and platelet adhesion (81.7 ± 2.5%) in vitro over a 2 h period. The LINORel combination greatly reduces bacterial adhesion and biofilm formation of two most common pathogens responsible for hospital acquired infections: gram-positive Staphylococcus aureus and gram-negative Pseudomonas aeruginosa (99.3 ± 1.9% and 88.5 ± 3.3% respectively) over a 7-day period in a CDC bioreactor environment. Overall, the LINORel approach provides a synergistic combination of active and passive non-fouling approaches to increase biocompatibility and reduce infection associated with medical devices.
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Affiliation(s)
- Marcus J Goudie
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Jitendra Pant
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA.
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