1
|
Lin J, Chen S, Zhang C, Liao J, Chen Y, Deng S, Mao Z, Zhang T, Tian N, Song Y, Zeng T. Recent advances in microfluidic technology of arterial thrombosis investigations. Platelets 2024; 35:2316743. [PMID: 38390892 DOI: 10.1080/09537104.2024.2316743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 02/05/2024] [Indexed: 02/24/2024]
Abstract
Microfluidic technology has emerged as a powerful tool in studying arterial thrombosis, allowing researchers to construct artificial blood vessels and replicate the hemodynamics of blood flow. This technology has led to significant advancements in understanding thrombosis and platelet adhesion and aggregation. Microfluidic models have various types and functions, and by studying the fabrication methods and working principles of microfluidic chips, applicable methods can be selected according to specific needs. The rapid development of microfluidic integrated system and modular microfluidic system makes arterial thrombosis research more diversified and automated, but its standardization still needs to be solved urgently. One key advantage of microfluidic technology is the ability to precisely control fluid flow in microchannels and to analyze platelet behavior under different shear forces and flow rates. This allows researchers to study the physiological and pathological processes of blood flow, shedding light on the underlying mechanisms of arterial thrombosis. In conclusion, microfluidic technology has revolutionized the study of arterial thrombosis by enabling the construction of artificial blood vessels and accurately reproducing hemodynamics. In the future, microfluidics will place greater emphasis on versatility and automation, holding great promise for advancing antithrombotic therapeutic and prophylactic measures.
Collapse
Affiliation(s)
- Jingying Lin
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
- Department of Laboratory Medicine, Chengdu Shangjin Nanfu Hospital/Shangjin Branch of West China Hospital, Sichuan University, Chengdu, China
| | - Si Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chunying Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Juan Liao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yuemei Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Shanying Deng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhigang Mao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Tonghao Zhang
- Department of Statistics, University of Virginia, Charlottesville, USA
| | - Na Tian
- Anesthesiology Department, Qingdao Eighth People's Hospital, Qingdao, China
| | - Yali Song
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Tingting Zeng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
2
|
Ronayne EK, Peters SC, Gish JS, Wilson C, Spencer HT, Doering CB, Lollar P, Spiegel PC, Childers KC. Structure of Blood Coagulation Factor VIII in Complex With an Anti-C2 Domain Non-Classical, Pathogenic Antibody Inhibitor. Front Immunol 2021; 12:697602. [PMID: 34177966 PMCID: PMC8223065 DOI: 10.3389/fimmu.2021.697602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 05/26/2021] [Indexed: 01/19/2023] Open
Abstract
Factor VIII (fVIII) is a procoagulant protein that binds to activated factor IX (fIXa) on platelet surfaces to form the intrinsic tenase complex. Due to the high immunogenicity of fVIII, generation of antibody inhibitors is a common occurrence in patients during hemophilia A treatment and spontaneously occurs in acquired hemophilia A patients. Non-classical antibody inhibitors, which block fVIII activation by thrombin and formation of the tenase complex, are the most common anti-C2 domain pathogenic inhibitors in hemophilia A murine models and have been identified in patient plasmas. In this study, we report on the X-ray crystal structure of a B domain-deleted bioengineered fVIII bound to the non-classical antibody inhibitor, G99. While binding to G99 does not disrupt the overall domain architecture of fVIII, the C2 domain undergoes an ~8 Å translocation that is concomitant with breaking multiple domain-domain interactions. Analysis of normalized B-factor values revealed several solvent-exposed loops in the C1 and C2 domains which experience a decrease in thermal motion in the presence of inhibitory antibodies. These results enhance our understanding on the structural nature of binding non-classical inhibitors and provide a structural dynamics-based rationale for cooperativity between anti-C1 and anti-C2 domain inhibitors.
Collapse
Affiliation(s)
- Estelle K Ronayne
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Shaun C Peters
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Joseph S Gish
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Celena Wilson
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - H Trent Spencer
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University, Atlanta, GA, United States
| | - Christopher B Doering
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University, Atlanta, GA, United States
| | - Pete Lollar
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University, Atlanta, GA, United States
| | - P Clint Spiegel
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| | - Kenneth C Childers
- Department of Chemistry, Western Washington University, Bellingham, WA, United States
| |
Collapse
|
3
|
Coxon CH, Yu X, Beavis J, Diaz-Saez L, Riches-Duit A, Ball C, Diamond SL, Raut S. Characterisation and application of recombinant FVIII-neutralising antibodies from haemophilia A inhibitor patients. Br J Haematol 2021; 193:976-987. [PMID: 33973229 DOI: 10.1111/bjh.17227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/16/2020] [Indexed: 12/20/2022]
Abstract
The development of anti-drug antibodies (ADAs) is a serious outcome of treatment strategies involving biological medicines. Coagulation factor VIII (FVIII) is used to treat haemophilia A patients, but its immunogenicity precludes a third of severe haemophiliac patients from receiving this treatment. The availability of patient-derived anti-drug antibodies can help us better understand drug immunogenicity and identify ways to overcome it. Thus, there were two aims to this work: (i) to develop and characterise a panel of recombinant, patient-derived, monoclonal antibodies covering a range of FVIII epitopes with varying potencies, kinetics and mechanism of action, and (ii) to demonstrate their applicability to assay development, evaluation of FVIII molecules and basic research. For the first objective we used recombinant antibodies to develop a rapid, sensitive, flexible and reproducible ex vivo assay that recapitulates inhibitor patient blood using blood from healthy volunteers. We also demonstrate how the panel can provide important information about the efficacy of FVIII products and reagents without the need for patient or animal material. These materials can be used as experimental exemplars or controls, as well as tools for rational, hypothesis-driven research and assay development in relation to FVIII immunogenicity and FVIII-related products.
Collapse
Affiliation(s)
- Carmen H Coxon
- National Institute for Biological Standards and Control, Hertfordshire, UK
| | - Xinren Yu
- University of Pennsylvania, Philadelphia, PA, USA
| | - James Beavis
- Oxford Haemophilia Centre, Churchill Hospital, Oxford, UK
| | | | - Andrew Riches-Duit
- National Institute for Biological Standards and Control, Hertfordshire, UK
| | - Chris Ball
- National Institute for Biological Standards and Control, Hertfordshire, UK
| | | | - Sanj Raut
- National Institute for Biological Standards and Control, Hertfordshire, UK
| |
Collapse
|
4
|
Li Q, Chen J, Lin S, Huang L, Yang X, Li F, Jin W, Li Y, Han B, Xiong Y, Fan D, Luo D, Li L, Yang X. Target capture next‐generation sequencing in non‐inversion haemophilia: an alternative approach. Br J Haematol 2020; 189:e168-e170. [PMID: 32190902 DOI: 10.1111/bjh.16584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Qiang Li
- The Department of Laboratory Medicine Nanfang Hospital Southern Medical University Guangzhou China
| | - Juanjuan Chen
- The Department of Laboratory Medicine Nanfang Hospital Southern Medical University Guangzhou China
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| | - Sheng Lin
- Shenzhen Health Development Research Center Shenzhen China
| | - Limin Huang
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| | - Xu Yang
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| | - Fenxia Li
- Technology Center of Prenatal Diagnosis and Genetic Diseases Diagnosis Department of Gynecology and Obstetrics Nanfang Hospital Southern Medical University Guangzhou China
| | - Wangjie Jin
- Technology Center of Prenatal Diagnosis and Genetic Diseases Diagnosis Department of Gynecology and Obstetrics Nanfang Hospital Southern Medical University Guangzhou China
| | - Yihong Li
- Technology Center of Prenatal Diagnosis and Genetic Diseases Diagnosis Department of Gynecology and Obstetrics Nanfang Hospital Southern Medical University Guangzhou China
| | - Bowei Han
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| | - Yufeng Xiong
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| | - Dongmei Fan
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| | - Dixian Luo
- The Department of Laboratory Medicine Nanfang Hospital Southern Medical University Guangzhou China
- Chenzhou Center for Clinical Pathological Laboratory National and Local Joint Engineering Laboratory for High‐through Molecular Diagnosis Technology Affiliated The First People’s Hospital of Chenzhou Chenzhou China
| | - Liyan Li
- Technology Center of Prenatal Diagnosis and Genetic Diseases Diagnosis Department of Gynecology and Obstetrics Nanfang Hospital Southern Medical University Guangzhou China
| | - Xuexi Yang
- School of Laboratory Medicine and Biotechnology Institute of Antibody Engineering Southern Medical University Guangzhou China
| |
Collapse
|