دورية أكاديمية
Nanobody activator improves sensitivity of the von Willebrand factor activity assay to multimer size.
العنوان: | Nanobody activator improves sensitivity of the von Willebrand factor activity assay to multimer size. |
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المؤلفون: | Liang Q; Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Parker ET; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Dean G; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Karpen MS; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Wu Y; Department of Statistics, School of Statistics and Center of Statistical Research, Southwestern University of Finance and Economics, Chengdu, China., Wang X; Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China., Di Paola J; Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA., Maier CL; Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA., Meeks SL; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Lollar P; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Sidonio RF; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA., Li R; Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA. Electronic address: renhao.li@emory.edu. |
المصدر: | Journal of thrombosis and haemostasis : JTH [J Thromb Haemost] 2024 Jul; Vol. 22 (7), pp. 2052-2058. Date of Electronic Publication: 2024 May 03. |
نوع المنشور: | Journal Article |
اللغة: | English |
بيانات الدورية: | Publisher: Elsevier Country of Publication: England NLM ID: 101170508 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1538-7836 (Electronic) Linking ISSN: 15387836 NLM ISO Abbreviation: J Thromb Haemost Subsets: MEDLINE |
أسماء مطبوعة: | Publication: 2023- : [New York] : Elsevier Original Publication: Oxford : Blackwell Pub. |
مواضيع طبية MeSH: | von Willebrand Factor*/metabolism , von Willebrand Factor*/analysis , Single-Domain Antibodies*/immunology , Single-Domain Antibodies*/chemistry , Enzyme-Linked Immunosorbent Assay* , Protein Multimerization*, Humans ; Linear Models ; Recombinant Proteins ; Blood Platelets/metabolism ; Platelet Aggregation/drug effects ; Platelet Glycoprotein GPIb-IX Complex/metabolism ; Protein Binding ; Platelet Adhesiveness ; Molecular Weight |
مستخلص: | Background: The activity of von Willebrand factor (VWF) in facilitating platelet adhesion and aggregation correlates with its multimer size. Traditional ristocetin-dependent functional assays lack sensitivity to multimer sizes. Recently, nanobodies targeting the autoinhibitory module and activating VWF were identified. Objectives: To develop an assay that can differentiate the platelet-binding activity of VWF multimers. Methods: A novel enzyme-linked immunosorbent assay (nanobody-triggered glycoprotein Ib binding assay [VWF:GPIbNab]) utilizing a VWF-activating nanobody was developed. Recombinant VWF, plasma-derived VWF (pdVWF), and selected gel-filtrated fractions of pdVWF were evaluated for VWF antigen and activity levels. A linear regression model was developed to estimate the specific activity of VWF multimers. Results: Of the 3 activating nanobodies tested, 6C11 with the lowest activation effect exhibited the highest sensitivity for high-molecular-weight multimers (HMWMs) of VWF. VWF:GPIbNab utilizing 6C11 (VWF:GPIbNab Conclusion: The VWF:GPIbNab Competing Interests: Declaration of competing interests R.L. and Q.L. are coinventors on a pending patent describing applications of nanobodies to measure the von Willebrand factor activity. The other coauthors declare no conflicts of interest. (Copyright © 2024 International Society on Thrombosis and Haemostasis. Published by Elsevier Inc. All rights reserved.) |
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معلومات مُعتمدة: | R35 HL166654 United States HL NHLBI NIH HHS |
فهرسة مساهمة: | Keywords: nanobody; platelet; ristocetin; sensitivity; von Willebrand factor |
المشرفين على المادة: | 0 (von Willebrand Factor) 0 (Single-Domain Antibodies) 0 (Recombinant Proteins) 0 (Platelet Glycoprotein GPIb-IX Complex) |
تواريخ الأحداث: | Date Created: 20240504 Date Completed: 20240630 Latest Revision: 20240722 |
رمز التحديث: | 20240722 |
مُعرف محوري في PubMed: | PMC11214880 |
DOI: | 10.1016/j.jtha.2024.04.015 |
PMID: | 38704122 |
قاعدة البيانات: | MEDLINE |
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