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Salerno S, Piscioneri A, Morelli S, Gori A, Provasi E, Gagni P, Barile L, Cretich M, Chiari M, De Bartolo L. Extracellular vesicles selective capture by peptide-functionalized hollow fiber membranes. J Colloid Interface Sci 2024; 667:338-349. [PMID: 38640653 DOI: 10.1016/j.jcis.2024.04.074] [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: 01/04/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
Recently, membrane devices and processes have been applied for the separation and concentration of subcellular components such as extracellular vesicles (EVs), which play a diagnostic and therapeutic role in many pathological conditions. However, the separation and isolation of specific EV populations from other components found in biological fluids is still challenging. Here, we developed a peptide-functionalized hollow fiber (HF) membrane module to achieve the separation and enrichment of highly pure EVs derived from the culture media of human cardiac progenitor cells. The strategy is based on the functionalization of PSf HF membrane module with BPt, a peptide sequence able to bind nanovesicles characterized by highly curved membranes. HF membranes were modified by a nanometric coating with a copoly azide polymer to limit non-specific interactions and to enable the conjugation with peptide ligand by click chemistry reaction. The BPt-functionalized module was integrated into a TFF process to facilitate the design, rationalization, and optimization of EV isolation. This integration combined size-based transport of species with specific membrane sensing ligands. The TFF integrated BPt-functionalized membrane module demonstrated the ability to selectively capture EVs with diameter < 200 nm into the lumen of fibers while effectively removing contaminants such as albumin. The captured and released EVs contain the common markers including CD63, CD81, CD9 and syntenin-1. Moreover, they maintained a round shape morphology and structural integrity highlighting that this approach enables EVs concentration and purification with low shear stress. Additionally, it achieved the removal of contaminants such as albumin with high reliability and reproducibility, reaching a removal of 93%.
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Affiliation(s)
- Simona Salerno
- Institute on Membrane Technology, National Research Council of Italy, ITM-CNR, via P. Bucci, cubo 17/C, I-87036 Rende (CS), Italy
| | - Antonella Piscioneri
- Institute on Membrane Technology, National Research Council of Italy, ITM-CNR, via P. Bucci, cubo 17/C, I-87036 Rende (CS), Italy
| | - Sabrina Morelli
- Institute on Membrane Technology, National Research Council of Italy, ITM-CNR, via P. Bucci, cubo 17/C, I-87036 Rende (CS), Italy
| | - Alessandro Gori
- Institute of Chemical Sciences and Technologies "G. Natta", National Research Council of Italy, SCITEC-CNR, Via Mario Bianco 9, 20131, Milan, Italy
| | - Elena Provasi
- Lugano Cell Factory, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, via Tesserete 48, 6900 Lugano, Switzerland
| | - Paola Gagni
- Institute of Chemical Sciences and Technologies "G. Natta", National Research Council of Italy, SCITEC-CNR, Via Mario Bianco 9, 20131, Milan, Italy
| | - Lucio Barile
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Laboratories for Translational Research, Ente Ospedaliero Cantonale, Via Chiesa 5, 6500 Bellinzona, Switzerland; Euler Institute, Faculty of Biomedical Sciences, Università della Svizzera Italiana (USI), Via Buffi 13, 6900 Lugano, Switzerland
| | - Marina Cretich
- Institute of Chemical Sciences and Technologies "G. Natta", National Research Council of Italy, SCITEC-CNR, Via Mario Bianco 9, 20131, Milan, Italy
| | - Marcella Chiari
- Institute of Chemical Sciences and Technologies "G. Natta", National Research Council of Italy, SCITEC-CNR, Via Mario Bianco 9, 20131, Milan, Italy
| | - Loredana De Bartolo
- Institute on Membrane Technology, National Research Council of Italy, ITM-CNR, via P. Bucci, cubo 17/C, I-87036 Rende (CS), Italy.
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2
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Din M, Paul S, Ullah S, Yang H, Xu RG, Abidin NAZ, Chowdhury B, Zhou F, Rogers S, Miller M, Biswas A, Hu L, Fan Z, Zahner C, Chen Z, Berman M, Xue L, Ju LA, Chen Y. Multi-parametric thrombus profiling microfluidics detects intensified biomechanical thrombogenesis associated with hypertension and aging. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.11.598290. [PMID: 38915705 PMCID: PMC11195082 DOI: 10.1101/2024.06.11.598290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Arterial thrombosis, which represents a critical complication of cardiovascular diseases, is a leading cause of death and disability worldwide with no effective bioassay for clinical prediction. As a symbolic feature of arterial thrombosis, severe stenosis in the blood vessel creates a high-shear, high-gradient flow environment that effectively facilitates platelet aggregation towards vessel occlusion even with platelet amplification loops inhibited. However, no approach is currently available to comprehensively characterize the size, composition and platelet activation status of thrombi forming under this biorheological condition. Here, we present a thrombus profiling assay that monitors the multi-dimensional attributes of thrombi forming in conditions mimicking the physiological scenario of arterial thrombosis. Using this platform, we demonstrate that different receptor-ligand interactions contribute distinctively to the composition and activation status of the thrombus. Our investigation into hypertensive and older individuals reveals intensified biomechanical thrombogenesis and multi-dimensional thrombus profile abnormalities, demonstrating a direct contribution of mechanobiology to arterial thrombosis and endorsing the diagnostic potential of the assay. Furthermore, we identify the hyperactivity of GPIbα-integrin α IIb β 3 mechanosensing axis as a molecular mechanism that contributes to hypertension-associated arterial thrombosis. By studying the interactions between anti-thrombotic inhibitors and hypertension, and the inter-individual variability in personal thrombus profiles, our work reveals a critical need for personalized anti-thrombotic drug selection that accommodates each patient's pathological profile.
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Korobkin JJD, Deordieva EA, Tesakov IP, Adamanskaya EIA, Boldova AE, Boldyreva AA, Galkina SV, Lazutova DP, Martyanov AA, Pustovalov VA, Novichkova GA, Shcherbina A, Panteleev MA, Sveshnikova AN. Dissecting thrombus-directed chemotaxis and random movement in neutrophil near-thrombus motion in flow chambers. BMC Biol 2024; 22:115. [PMID: 38764040 DOI: 10.1186/s12915-024-01912-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 05/08/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND Thromboinflammation is caused by mutual activation of platelets and neutrophils. The site of thromboinflammation is determined by chemoattracting agents release by endothelium, immune cells, and platelets. Impaired neutrophil chemotaxis contributes to the pathogenesis of Shwachman-Diamond syndrome (SDS). In this hereditary disorder, neutrophils are known to have aberrant chemoattractant-induced F-actin properties. Here, we aim to determine whether neutrophil chemotaxis could be analyzed using our previously developed ex vivo assay of the neutrophils crawling among the growing thrombi. METHODS Adult and pediatric healthy donors, alongside with pediatric patients with SDS, were recruited for the study. Thrombus formation and granulocyte movement in hirudinated whole blood were visualized by fluorescent microscopy in fibrillar collagen-coated parallel-plate flow chambers. Alternatively, fibrinogen, fibronectin, vWF, or single tumor cells immobilized on coverslips were used. A computational model of chemokine distribution in flow chamber with a virtual neutrophil moving in it was used to analyze the observed data. RESULTS The movement of healthy donor neutrophils predominantly occurred in the direction and vicinity of thrombi grown on collagen or around tumor cells. For SDS patients or on coatings other than collagen, the movement was characterized by randomness and significantly reduced velocities. Increase in wall shear rates to 300-500 1/s led to an increase in the proportion of rolling neutrophils. A stochastic algorithm simulating leucocyte chemotaxis movement in the calculated chemoattractant field could reproduce the experimental trajectories of moving neutrophils for 72% of cells. CONCLUSIONS In samples from healthy donors, but not SDS patients, neutrophils move in the direction of large, chemoattractant-releasing platelet thrombi growing on collagen.
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Affiliation(s)
- Julia-Jessica D Korobkin
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina A Deordieva
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Ivan P Tesakov
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
- Department of Oncology, Hematology, Immunology, and Rheumatology, University Hospital Tübingen, Tübingen, Germany
| | - Ekaterina-Iva A Adamanskaya
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna E Boldova
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Antonina A Boldyreva
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - Sofia V Galkina
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Daria P Lazutova
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
| | - Alexey A Martyanov
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
| | | | - Galina A Novichkova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna Shcherbina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Mikhail A Panteleev
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
- Lomonosov Moscow State University, Moscow, Russia
| | - Anastasia N Sveshnikova
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, Moscow, Russia.
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia.
- Lomonosov Moscow State University, Moscow, Russia.
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Lemmens TP, Bröker V, Rijpkema M, Hughes CCW, Schurgers LJ, Cosemans JMEM. Fundamental considerations for designing endothelialized in vitro models of thrombosis. Thromb Res 2024; 236:179-190. [PMID: 38460307 DOI: 10.1016/j.thromres.2024.03.004] [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: 11/18/2023] [Revised: 02/19/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Endothelialized in vitro models for cardiovascular disease have contributed greatly to our current understanding of the complex molecular mechanisms underlying thrombosis. To further elucidate these mechanisms, it is important to consider which fundamental aspects to incorporate into an in vitro model. In this review, we will focus on the design of in vitro endothelialized models of thrombosis. Expanding our understanding of the relation and interplay between the different pathways involved will rely in part on complex models that incorporate endothelial cells, blood, the extracellular matrix, and flow. Importantly, the use of tissue-specific endothelial cells will help in understanding the heterogeneity in thrombotic responses between different vascular beds. The dynamic and complex responses of endothelial cells to different shear rates underlines the importance of incorporating appropriate shear in in vitro models. Alterations in vascular extracellular matrix composition, availability of bioactive molecules, and gradients in concentration and composition of these molecules can all regulate the function of both endothelial cells and perivascular cells. Factors modulating these elements in in vitro models should therefore be considered carefully depending on the research question at hand. As the complexity of in vitro models increases, so can the variability. A bottom-up approach to designing such models will remain an important tool for researchers studying thrombosis. As new techniques are continuously being developed and new pathways are brought to light, research question-dependent considerations will have to be made regarding what aspects of thrombosis to include in in vitro models.
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Affiliation(s)
- Titus P Lemmens
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Vanessa Bröker
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Minke Rijpkema
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Christopher C W Hughes
- Department of Molecular Biology and Biochemistry, and Department of Biomedical Engineering, University of California, Irvine, USA
| | - Leon J Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Judith M E M Cosemans
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands.
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5
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Mao A, Zhang K, Kan H, Gao M, Wang Z, Zhou T, Shao J, He D. Single-Cell RNA-Seq Reveals Coronary Heterogeneity and Identifies CD133 +TRPV4 high Endothelial Subpopulation in Regulating Flow-Induced Vascular Tone in Mice. Arterioscler Thromb Vasc Biol 2024; 44:653-665. [PMID: 38269590 PMCID: PMC10880935 DOI: 10.1161/atvbaha.123.319516] [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: 04/27/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Single-cell RNA-Seq analysis can determine the heterogeneity of cells between different tissues at a single-cell level. Coronary artery endothelial cells (ECs) are important to coronary blood flow. However, little is known about the heterogeneity of coronary artery ECs, and cellular identity responses to flow. Identifying endothelial subpopulations will contribute to the precise localization of vascular endothelial subpopulations, thus enabling the precision of vascular injury treatment. METHODS Here, we performed a single-cell RNA sequencing of 31 962 cells and functional assays of 3 branches of the coronary arteries (right coronary artery/circumflex left coronary artery/anterior descending left coronary artery) in wild-type mice. RESULTS We found a compendium of 7 distinct cell types in mouse coronary arteries, mainly ECs, granulocytes, cardiac myocytes, smooth muscle cells, lymphocytes, myeloid cells, and fibroblast cells, and showed spatial heterogeneity between arterial branches. Furthermore, we revealed a subpopulation of coronary artery ECs, CD133+TRPV4high ECs. TRPV4 (transient receptor potential vanilloid 4) in CD133+TRPV4high ECs is important for regulating vasodilation and coronary blood flow. CONCLUSIONS Our study elucidates the nature and range of coronary arterial cell diversity and highlights the importance of coronary CD133+TRPV4high ECs in regulating coronary vascular tone.
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Affiliation(s)
- Aiqin Mao
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
- School of Food Science and Technology (A.M., D.H.), Jiangnan University, China
| | - Ka Zhang
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Hao Kan
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Mengru Gao
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Zhiwei Wang
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Tingting Zhou
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Jing Shao
- Wuxi School of Medicine (A.M., K.Z., H.K., M.G., Z.W., T.Z., J.S.), Jiangnan University, China
| | - Dongxu He
- School of Food Science and Technology (A.M., D.H.), Jiangnan University, China
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6
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Nascimbene A, Bark D, Smadja DM. Hemocompatibility and biophysical interface of left ventricular assist devices and total artificial hearts. Blood 2024; 143:661-672. [PMID: 37890145 PMCID: PMC10900168 DOI: 10.1182/blood.2022018096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
ABSTRACT Over the past 2 decades, there has been a significant increase in the utilization of long-term mechanical circulatory support (MCS) for the treatment of cardiac failure. Left ventricular assist devices (LVADs) and total artificial hearts (TAHs) have been developed in parallel to serve as bridge-to-transplant and destination therapy solutions. Despite the distinct hemodynamic characteristics introduced by LVADs and TAHs, a comparative evaluation of these devices regarding potential complications in supported patients, has not been undertaken. Such a study could provide valuable insights into the complications associated with these devices. Although MCS has shown substantial clinical benefits, significant complications related to hemocompatibility persist, including thrombosis, recurrent bleeding, and cerebrovascular accidents. This review focuses on the current understanding of hemostasis, specifically thrombotic and bleeding complications, and explores the influence of different shear stress regimens in long-term MCS. Furthermore, the role of endothelial cells in protecting against hemocompatibility-related complications of MCS is discussed. We also compared the diverse mechanisms contributing to the occurrence of hemocompatibility-related complications in currently used LVADs and TAHs. By applying the existing knowledge, we present, for the first time, a comprehensive comparison between long-term MCS options.
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Affiliation(s)
- Angelo Nascimbene
- Advanced Cardiopulmonary Therapies and Transplantation, University of Texas, Houston, TX
| | - David Bark
- Division of Hematology and Oncology, Department of Pediatrics, Washington University in St. Louis, St. Louis, MO
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO
| | - David M. Smadja
- Université de Paris-Cité, Innovative Therapies in Haemostasis, INSERM, Paris, France
- Hematology Department, Assistance Publique–Hôpitaux de Paris, Georges Pompidou European Hospital, Paris, France
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7
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Zakharov A, Awan M, Cheng T, Gopinath A, Lee SJJ, Ramasubramanian AK, Dasbiswas K. Clots reveal anomalous elastic behavior of fiber networks. SCIENCE ADVANCES 2024; 10:eadh1265. [PMID: 38198546 PMCID: PMC10780871 DOI: 10.1126/sciadv.adh1265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024]
Abstract
The adaptive mechanical properties of soft and fibrous biological materials are relevant to their functionality. The emergence of the macroscopic response of these materials to external stress and intrinsic cell traction from local deformations of their structural components is not well understood. Here, we investigate the nonlinear elastic behavior of blood clots by combining microscopy, rheology, and an elastic network model that incorporates the stretching, bending, and buckling of constituent fibrin fibers. By inhibiting fibrin cross-linking in blood clots, we observe an anomalous softening regime in the macroscopic shear response as well as a reduction in platelet-induced clot contractility. Our model explains these observations from two independent macroscopic measurements in a unified manner, through a single mechanical parameter, the bending stiffness of individual fibers. Supported by experimental evidence, our mechanics-based model provides a framework for predicting and comprehending the nonlinear elastic behavior of blood clots and other active biopolymer networks in general.
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Affiliation(s)
- Andrei Zakharov
- Department of Physics, University of California, Merced, Merced, CA 95343, USA
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Myra Awan
- Department of Chemical and Materials Engineering, San José State University, San José, CA 95192, USA
| | - Terrence Cheng
- Department of Chemical and Materials Engineering, San José State University, San José, CA 95192, USA
| | - Arvind Gopinath
- Department of Bioengineering, University of California, Merced, Merced, CA 95343, USA
| | - Sang-Joon John Lee
- Department of Mechanical Engineering, San José State University, San José, CA 95192, USA
| | - Anand K. Ramasubramanian
- Department of Chemical and Materials Engineering, San José State University, San José, CA 95192, USA
| | - Kinjal Dasbiswas
- Department of Physics, University of California, Merced, Merced, CA 95343, USA
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Shu T, Wang X, Li M, Ma S, Cao J, Sun G, Lai T, Liu S, Li A, Qu Z, Pei D. Nanoscaled Titanium Oxide Layer Provokes Quick Osseointegration on 3D-Printed Dental Implants: A Domino Effect Induced by Hydrophilic Surface. ACS NANO 2024; 18:783-797. [PMID: 38117950 DOI: 10.1021/acsnano.3c09285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Three-dimensional printing is a revolutionary strategy to fabricate dental implants. Especially, 3D-printed dental implants modified with nanoscaled titanium oxide layer (H-SLM) have impressively shown quick osseointegration, but the accurate mechanism remains elusive. Herein, we unmask a domino effect that the hydrophilic surface of the H-SLM facilitates blood wetting, enhances the blood shear rate, promotes blood clotting, and changes clot features for quick osseointegration. Combining computational fluid dynamic simulation and biological verification, we find a blood shear rate during blood wetting of the hydrophilic H-SLM 1.2-fold higher than that of the raw 3D-printed implant, which activates blood clot formation. Blood clots formed on the hydrophilic H-SLM demonstrate anti-inflammatory and pro-osteogenesis effects, leading to a 1.5-fold higher bone-to-implant contact and a 1.8-fold higher mechanical anchorage at the early stage of osseointegration. This mechanism deepens current knowledge between osseointegration speed and implant surface characteristics, which is instructive in surface nanoscaled modification of multiple 3D-printed intrabony implants.
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Affiliation(s)
- Tianyu Shu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xueliang Wang
- MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Meng Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shaoyang Ma
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jiao Cao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Guo Sun
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Tao Lai
- MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shaobao Liu
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Ang Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhiguo Qu
- MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Dandan Pei
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
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9
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Kokkinidou D, Kaliviotis E, Shammas C, Anayiotos A, Kapnisis K. An in vivo investigation on the effects of stent implantation on hematological and hemorheological parameters. Clin Hemorheol Microcirc 2024; 87:39-53. [PMID: 38143339 DOI: 10.3233/ch-231921] [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] [Indexed: 12/26/2023]
Abstract
BACKGROUND Even though cardiovascular stenting is widely used for the treatment of coronary artery disease, information on how it can affect the hematological and hemorheological profile is scarce in the literature. Most of the work on this issue is based on theoretical or computational fluid dynamics models, lacking in-depth in vitro and in vivo experimental verification. OBJECTIVE This work investigates, in an in vivo setting, the effects of stenting and the implantation time-course on hematological and hemorheological parameters that could potentially compromise the device's functionality and longevity. METHODS Custom-made self-expanding nitinol stents were implanted in the common carotid artery of male CD1 mice. Whole blood samples were collected from control (non-stented) and stented animals at 5 and 10 weeks post-implantation. Hematological measurements and blood viscosity, red blood cell aggregation, and deformability were performed using standard techniques. RESULTS Implant-induced changes were observed in some of the hematological and hemorheological indices. Blood viscosity seems to have been negatively affected by an increased hematocrit and reduced RBC deformability, at 10 weeks post-implantation, despite a slight decrease in RBC aggregation. CONCLUSIONS Although the alterations observed may be the result of the peri-implant inflammatory response, the physiological consequences due to hemorheological changes need to be further investigated.
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Affiliation(s)
- D Kokkinidou
- Department of Mechanical Engineering and Material Science and Engineering, Cyprus University of Technology, Limassol, Cyprus
| | - E Kaliviotis
- Department of Mechanical Engineering and Material Science and Engineering, Cyprus University of Technology, Limassol, Cyprus
| | - C Shammas
- BIOANALYSIS Clinical Laboratory, Limassol, Cyprus
| | - A Anayiotos
- Department of Mechanical Engineering and Material Science and Engineering, Cyprus University of Technology, Limassol, Cyprus
| | - K Kapnisis
- Department of Mechanical Engineering and Material Science and Engineering, Cyprus University of Technology, Limassol, Cyprus
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10
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Sarıyer RM, Gill K, Needs SH, Hodge D, Reis NM, Jones CI, Edwards AD. Time- and distance-resolved robotic imaging of fluid flow in vertical microfluidic strips: a new technique for quantitative, multiparameter measurement of global haemostasis. SENSORS & DIAGNOSTICS 2023; 2:1623-1637. [PMID: 38013763 PMCID: PMC10633108 DOI: 10.1039/d3sd00162h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/26/2023] [Indexed: 11/29/2023]
Abstract
Measuring the complex processes of blood coagulation, haemostasis and thrombosis that are central to cardiovascular health and disease typically requires a choice between high-resolution low-throughput laboratory assays, or simpler less quantitative tests. We propose combining mass-produced microfluidic devices with open-source robotic instrumentation to enable rapid development of affordable and portable, yet high-throughput and performance haematological testing. A time- and distance-resolved fluid flow analysis by Raspberry Pi imaging integrated with controlled sample addition and illumination, enabled simultaneous tracking of capillary rise in 120 individual capillaries (∼160, 200 or 270 μm internal diameter), in 12 parallel disposable devices. We found time-resolved tracking of capillary rise in each individual microcapillary provides quantitative information about fluid properties and most importantly enables quantitation of dynamic changes in these properties following stimulation. Fluid properties were derived from flow kinetics using a pressure balance model validated with glycerol-water mixtures and blood components. Time-resolved imaging revealed fluid properties that were harder to determine from a single endpoint image or equilibrium analysis alone. Surprisingly, instantaneous superficial fluid velocity during capillary rise was found to be largely independent of capillary diameter at initial time points. We tested if blood function could be measured dynamically by stimulating blood with thrombin to trigger activation of global haemostasis. Thrombin stimulation slowed vertical fluid velocity consistent with a dynamic increase in viscosity. The dynamics were concentration-dependent, with highest doses reducing flow velocity faster (within 10 s) than lower doses (10-30 s). This open-source imaging instrumentation expands the capability of affordable microfluidic devices for haematological testing, towards high-throughput multi-parameter blood analysis needed to understand and improve cardiovascular health.
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Affiliation(s)
- Rüya Meltem Sarıyer
- Reading School of Pharmacy, University of Reading Whiteknights Reading RG6 6UB UK +44 (0)118 378 4253
| | - Kirandeep Gill
- Reading School of Pharmacy, University of Reading Whiteknights Reading RG6 6UB UK +44 (0)118 378 4253
- Department of Chemical Engineering and Centre for Biosensors, Bioelectronics and Biodevices (CBio), University of Bath Bath BA2 7AY UK
| | - Sarah H Needs
- Reading School of Pharmacy, University of Reading Whiteknights Reading RG6 6UB UK +44 (0)118 378 4253
| | - Daniel Hodge
- Reading School of Biological Sciences, University of Reading Whiteknights Reading UK
| | - Nuno M Reis
- Department of Chemical Engineering and Centre for Biosensors, Bioelectronics and Biodevices (CBio), University of Bath Bath BA2 7AY UK
| | - Chris I Jones
- Reading School of Biological Sciences, University of Reading Whiteknights Reading UK
| | - Alexander D Edwards
- Reading School of Pharmacy, University of Reading Whiteknights Reading RG6 6UB UK +44 (0)118 378 4253
- School of Electronics and Computer Science, University of Southampton Highfield Southampton SO17 1BJ UK
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11
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Kiouptsi K, Casari M, Mandel J, Gao Z, Deppermann C. Intravital Imaging of Thrombosis Models in Mice. Hamostaseologie 2023; 43:348-359. [PMID: 37857297 DOI: 10.1055/a-2118-2932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
Intravital microscopy is a powerful tool to study thrombosis in real time. The kinetics of thrombus formation and progression in vivo is studied after inflicting damage to the endothelium through mechanical, chemical, or laser injury. Mouse models of atherosclerosis are also used to induce thrombus formation. Vessels of different sizes and from different vascular beds such as carotid artery or vena cava, mesenteric or cremaster arterioles, can be targeted. Using fluorescent dyes, antibodies, or reporter mouse strains allows to visualize key cells and factors mediating the thrombotic processes. Here, we review the latest literature on using intravital microscopy to study thrombosis as well as thromboinflammation following transient middle cerebral artery occlusion, infection-induced immunothrombosis, and liver ischemia reperfusion.
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Affiliation(s)
- Klytaimnistra Kiouptsi
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
| | - Martina Casari
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Jonathan Mandel
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Zhenling Gao
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Carsten Deppermann
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
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12
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Serafini E, Corti A, Gallo D, Chiastra C, Li XC, Casarin S. An agent-based model of cardiac allograft vasculopathy: toward a better understanding of chronic rejection dynamics. Front Bioeng Biotechnol 2023; 11:1190409. [PMID: 37771577 PMCID: PMC10523786 DOI: 10.3389/fbioe.2023.1190409] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/17/2023] [Indexed: 09/30/2023] Open
Abstract
Cardiac allograft vasculopathy (CAV) is a coronary artery disease affecting 50% of heart transplant (HTx) recipients, and it is the major cause of graft loss. CAV is driven by the interplay of immunological and non-immunological factors, setting off a cascade of events promoting endothelial damage and vascular dysfunction. The etiology and evolution of tissue pathology are largely unknown, making disease management challenging. So far, in vivo models, mostly mouse-based, have been widely used to study CAV, but they are resource-consuming, pose many ethical issues, and allow limited investigation of time points and important biomechanical measurements. Recently, agent-based models (ABMs) proved to be valid computational tools for deciphering mechanobiological mechanisms driving vascular adaptation processes at the cell/tissue level, augmenting cost-effective in vivo lab-based experiments, at the same time guaranteeing richness in observation time points and low consumption of resources. We hypothesize that integrating ABMs with lab-based experiments can aid in vivo research by overcoming those limitations. Accordingly, this work proposes a bidimensional ABM of CAV in a mouse coronary artery cross-section, simulating the arterial wall response to two distinct stimuli: inflammation and hemodynamic disturbances, the latter considered in terms of low wall shear stress (WSS). These stimuli trigger i) inflammatory cell activation and ii) exacerbated vascular cell activities. Moreover, an extensive analysis was performed to investigate the ABM sensitivity to the driving parameters and inputs and gain insights into the ABM working mechanisms. The ABM was able to effectively replicate a 4-week CAV initiation and progression, characterized by lumen area decrease due to progressive intimal thickening in regions exposed to high inflammation and low WSS. Moreover, the parameter and input sensitivity analysis highlighted that the inflammatory-related events rather than the WSS predominantly drive CAV, corroborating the inflammatory nature of the vasculopathy. The proof-of-concept model proposed herein demonstrated its potential in deepening the pathology knowledge and supporting the in vivo analysis of CAV.
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Affiliation(s)
- Elisa Serafini
- PolitoMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
- LaSIE, UMR 7356 CNRS, La Rochelle Université, La Rochelle, France
- Center for Precision Surgery, Houston Methodist Research Institute, Houston, TX, United States
| | - Anna Corti
- Laboratory of Biological Structure Mechanics (LaBS), Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - Diego Gallo
- PolitoMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Claudio Chiastra
- PolitoMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Xian C. Li
- Immunobiology and Transplant Science Center, Houston Methodist Hospital, Houston, TX, United States
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, NY, United States
- Department of Surgery, Houston Methodist Hospital, Houston, TX, United States
| | - Stefano Casarin
- LaSIE, UMR 7356 CNRS, La Rochelle Université, La Rochelle, France
- Center for Precision Surgery, Houston Methodist Research Institute, Houston, TX, United States
- Department of Surgery, Houston Methodist Hospital, Houston, TX, United States
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13
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Okhota S, Kozlov S, Avtaeva Y, Melnikov I, Saburova O, Guria K, Matroze E, Gabbasov Z. Platelet Adhesion Mediated by von Willebrand Factor at High Shear Rates Is Associated with Premature Coronary Artery Disease. Biomedicines 2023; 11:1916. [PMID: 37509554 PMCID: PMC10377430 DOI: 10.3390/biomedicines11071916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
This study investigated von Willebrand factor (VWF)-mediated platelet adhesion at high shear rates in patients with premature coronary artery disease (CAD). The study included 84 patients with stable premature CAD and 64 patients without CAD. Whole blood samples were perfused through a microfluidic cell over a collagen-coated surface at a shear rate of 1300 s-1. Measurements were performed before and after the inhibition of VWF-specific platelet GPIb receptors with an anti-GPIb monoclonal antibody (mAb). Platelet adhesion decreased by 77.0% (55.9; 84.7) in patients with premature CAD and by 29.6% (0.0; 59.7) in control patients after the inhibition of VWF-platelet interaction with anti-GPIb mAb (p < 0.001). After adjusting for traditional risk factors, the odds ratio for premature CAD per 1% decrease in GPIb-mediated platelet adhesion was 1.03 (95% CI, 1.02-1.05; p < 0.001). The optimal cut-off level value of GPIb-mediated platelet adhesion was 62.8%, with 70.2% sensitivity and 81.2% specificity for CAD. The plasma levels of VWF or antiplatelet therapy did not affect the GPIb-mediated component of platelet adhesion. Thus, the GPIb-mediated component of platelet adhesion was more pronounced in patients with premature CAD. This may indicate the possible role of excessive VWF-platelet interactions in the development of premature CAD.
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Affiliation(s)
- Sergey Okhota
- Department of Problems of Atherosclerosis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Sergey Kozlov
- Department of Problems of Atherosclerosis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Yuliya Avtaeva
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Ivan Melnikov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
- Laboratory of Gas Exchange, Biomechanics and Barophysiology, State Scientific Center of the Russian Federation-The Institute of Biomedical Problems of the Russian Academy of Sciences, 123007 Moscow, Russia
| | - Olga Saburova
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Konstantin Guria
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
| | - Evgeny Matroze
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
- Department of Innovative Pharmacy, Medical Devices and Biotechnology, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Zufar Gabbasov
- Laboratory of Cell Hemostasis, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov of the Ministry of Health of the Russian Federation, 121552 Moscow, Russia
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14
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Ranftl S, Müller TS, Windberger U, Brenn G, von der Linden W. A Bayesian approach to blood rheological uncertainties in aortic hemodynamics. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2023; 39:e3576. [PMID: 35099851 DOI: 10.1002/cnm.3576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 01/29/2022] [Indexed: 05/12/2023]
Abstract
Computational hemodynamics has received increasing attention recently. Patient-specific simulations require questionable model assumptions, for example, for geometry, boundary conditions, and material parameters. Consequently, the credibility of these simulations is much doubted, and rightly so. Yet, the matter may be addressed by a rigorous uncertainty quantification. In this contribution, we investigated the impact of blood rheological models on wall shear stress uncertainties in aortic hemodynamics obtained in numerical simulations. Based on shear-rheometric experiments, we compare the non-Newtonian Carreau model to a simple Newtonian model and a Reynolds number-equivalent Newtonian model. Bayesian Probability Theory treats uncertainties consistently and allows to include elusive assumptions such as the comparability of flow regimes. We overcome the prohibitively high computational cost for the simulation with a surrogate model, and account for the uncertainties of the surrogate model itself, too. We have two main findings: (1) The Newtonian models mostly underestimate the uncertainties as compared to the non-Newtonian model. (2) The wall shear stresses of specific persons cannot be distinguished due to largely overlapping uncertainty bands, implying that a more precise determination of person-specific blood rheological properties is necessary for person-specific simulations. While we refrain from a general recommendation for one rheological model, we have quantified the error of the uncertainty quantification associated with these modeling choices.
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Affiliation(s)
- Sascha Ranftl
- Institute of Theoretical and Computational Physics, Graz University of Technology, Graz, Austria
- Graz Center of Computational Engineering, Graz University of Technology, Graz, Austria
| | - Thomas Stephan Müller
- Graz Center of Computational Engineering, Graz University of Technology, Graz, Austria
- Institute of Fluid Mechanics and Heat Transfer, Graz University of Technology, Graz, Austria
| | - Ursula Windberger
- Center for Biomedical Research, Medical University of Vienna, Vienna, Austria
| | - Günter Brenn
- Graz Center of Computational Engineering, Graz University of Technology, Graz, Austria
- Institute of Fluid Mechanics and Heat Transfer, Graz University of Technology, Graz, Austria
| | - Wolfgang von der Linden
- Institute of Theoretical and Computational Physics, Graz University of Technology, Graz, Austria
- Graz Center of Computational Engineering, Graz University of Technology, Graz, Austria
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15
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Csányi MC, Salamon P, Feller T, Bozó T, Hársfalvi J, Kellermayer MSZ. Structural hierarchy of mechanical extensibility in human von Willebrand factor multimers. Protein Sci 2023; 32:e4535. [PMID: 36478480 PMCID: PMC9798247 DOI: 10.1002/pro.4535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/04/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
The von Willebrand factor (VWF) is a multimeric glycoprotein composed of 80- to 120-nm-long protomeric units and plays a fundamental role in mediating platelet function at high shear. The exact nature of the shear-induced structural transitions have remained elusive; uncovering them requires the high-resolution quantitative analysis of gradually extended VWF. Here, we stretched human blood-plasma-derived VWF with molecular combing and analyzed the axial structure of the elongated multimers with atomic force microscopy. Protomers extended through structural intermediates that could be grouped into seven distinct topographical classes. Protomer extension thus progresses through the uncoiling of the C1-6 domain segment, rearrangements among the N-terminal VWF domains, and unfolding and elastic extension of the A2 domain. The least and most extended protomer conformations were localized at the ends and the middle of the multimer, respectively, revealing an apparent necking phenomenon characteristic of plastic-material behavior. The structural hierarchy uncovered here is likely to provide a spatial control mechanism to the complex functions of VWF.
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Affiliation(s)
- Mária Csilla Csányi
- Department of Biophysics and Radiation BiologySemmelweis UniversityBudapestHungary
| | - Pál Salamon
- Department of Biophysics and Radiation BiologySemmelweis UniversityBudapestHungary,Present address:
Department of BioengineeringSapientia Hungarian University of TransylvaniaMiercurea CiucRomania
| | - Tímea Feller
- Department of Biophysics and Radiation BiologySemmelweis UniversityBudapestHungary,Present address:
Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic MedicineUniversity of LeedsLeedsUK
| | - Tamás Bozó
- Department of Biophysics and Radiation BiologySemmelweis UniversityBudapestHungary
| | - Jolán Hársfalvi
- Department of Biophysics and Radiation BiologySemmelweis UniversityBudapestHungary
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16
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Chen Z, Han L, Meng G, Li H, Shan C, Du G, Li M. Intravenous Hemostats: Foundation, Targeting, and Controlled-Release. Bioconjug Chem 2022; 33:2269-2289. [PMID: 36404605 DOI: 10.1021/acs.bioconjchem.2c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Uncontrollable blood loss is the greatest cause of mortality in prehospital patients and the main source of disability and death in hospital care. Compared with external hemostats, intravenous hemostats are more appropriate for preventing and treating uncontrolled bleeding in vivo and large bleeding on the body surface. This Review initially establishes intravenous hemostats' response basis, including the coagulation mechanism, fibrinolytic pathway, and protein corona. Second, the study of advancement of intravenous hemostat targeting was expanded from two perspectives, cellular hemostatic agents and synthetic hemostatic agents. Meanwhile, after discussing the progress of controlled-release intravenous hemostats with platelets as the stimuli, this Review offers insight into the possibility of controlled-release intravenous hemostats with microenvironment as the stimuli, combining the studies of controlled-release targeted thrombolysis.
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Affiliation(s)
- Zihao Chen
- Department of Special Operations Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Lei Han
- Department of Special Operations Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Guo Meng
- Department of Special Operations Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Huaiyong Li
- Department of Special Operations Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Chao Shan
- Department of Special Operations Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Ge Du
- Department Of Geriatric Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing 100144, China
| | - Minggao Li
- Department of Special Operations Medicine, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
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17
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Loss of α4A- and β1-tubulins leads to severe platelet spherocytosis and strongly impairs hemostasis in mice. Blood 2022; 140:2290-2299. [PMID: 36026602 DOI: 10.1182/blood.2022016729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/16/2022] [Indexed: 11/20/2022] Open
Abstract
Native circulating blood platelets present with a discoid flat morphology maintained by a submembranous peripheral ring of microtubules, named marginal band. The functional importance of this particular shape is still debated, but it was initially hypothesized to facilitate platelet interaction with the injured vessel wall and to contribute to hemostasis. The importance of the platelet discoid morphology has since been questioned on the absence of clear bleeding tendency in mice lacking the platelet-specific β1-tubulin isotype, which exhibits platelets with a thinner marginal band and an ovoid shape. Here, we generated a mouse model inactivated for β1-tubulin and α4A-tubulin, an α-tubulin isotype strongly enriched in platelets. These mice present with fully spherical platelets completely devoid of a marginal band. In contrast to the single knockouts, the double deletion resulted in a severe bleeding defect in a tail-clipping assay, which was not corrected by increasing the platelet count to normal values by the thrombopoietin-analog romiplostim. In vivo, thrombus formation was almost abolished in a ferric chloride-injury model, with only a thin layer of loosely packed platelets, and mice were protected against death in a model of thromboembolism. In vitro, platelets adhered less efficiently and formed smaller-sized and loosely assembled aggregates when perfused over von Willebrand factor and collagen matrices. In conclusion, this study shows that blood platelets require 2 unique α- and β-tubulin isotypes to acquire their characteristic discoid morphology. Lack of these 2 isotypes has a deleterious effect on flow-dependent aggregate formation and stability, leading to a severe bleeding disorder.
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18
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Arce NA, Liu Y, Chen W, Zhang XF, Li R. Autoinhibitory module underlies species difference in shear activation of von Willebrand factor. J Thromb Haemost 2022; 20:2686-2696. [PMID: 36031939 PMCID: PMC9588639 DOI: 10.1111/jth.15837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/05/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Von Willebrand factor (VWF) is a multimeric plasma protein that bridges the gap between vessel injury and platelet capture at high shear rates. Under high shear or tension, VWF can become activated upon the unfolding of its autoinhibitory module (AIM). AIM unfolding exposes the A1 domain, allowing for binding to platelet glycoprotein (GP)Ibα to initiate primary hemostasis. The characteristics of the AIM and its inhibitory properties within mouse VWF are unknown. OBJECTIVES To determine and characterize the autoinhibitory properties of mouse VWF. METHODS Recombinant mouse VWF A1 fragments containing or lacking the flanking regions around the A1 domain were generated. We tested the ability of these fragments to bind to human or mouse GPIbα and platelets. We compared the unfolding of mouse AIM-A1 to human AIM-A1 by single-molecule force spectroscopy. RESULTS Recombinant mouse AIM-A1 binds with higher affinity to GPIbα than its human counterpart. Recombinant mouse proteins lacking part of the AIM show increased binding to GPIbα. Activated A1 fragments lacking the AIM can effectively agglutinate platelets across the species barrier. Using single-molecule force spectroscopy, we determined that the mouse AIM unfolds under forces similar to the human AIM. Additionally, the human AIM paired with mouse A1 largely recapitulates the behavior of human AIM-A1. CONCLUSIONS Our results suggest that the regulation of VWF-GPIbα binding has been specifically tuned to work optimally in different rheological architectures. Differences in the AIM sequence may contribute to the difference in VWF shear response between human and mice.
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Affiliation(s)
- Nicholas A. Arce
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Yi Liu
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Wenchun Chen
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - X. Frank Zhang
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Renhao Li
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
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19
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Perazzo A, Peng Z, Young YN, Feng Z, Wood DK, Higgins JM, Stone HA. The effect of rigid cells on blood viscosity: linking rheology and sickle cell anemia. SOFT MATTER 2022; 18:554-565. [PMID: 34931640 PMCID: PMC8925304 DOI: 10.1039/d1sm01299a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sickle cell anemia (SCA) is a disease that affects red blood cells (RBCs). Healthy RBCs are highly deformable objects that under flow can penetrate blood capillaries smaller than their typical size. In SCA there is an impaired deformability of some cells, which are much stiffer and with a different shape than healthy cells, and thereby affect regular blood flow. It is known that blood from patients with SCA has a higher viscosity than normal blood. However, it is unclear how the rigidity of cells is related to the viscosity of blood, in part because SCA patients are often treated with transfusions of variable amounts of normal RBCs and only a fraction of cells will be stiff. Here, we report systematic experimental measurements of the viscosity of a suspension varying the fraction of rigid particles within a suspension of healthy cells. We also perform systematic numerical simulations of a similar mixed suspension of soft RBCs, rigid particles, and their hydrodynamic interactions. Our results show that there is a rheological signature within blood viscosity to clearly identify the fraction of rigidified cells among healthy deformable cells down to a 5% volume fraction of rigidified cells. Although aggregation of RBCs is known to affect blood rheology at low shear rates, and our simulations mimic this effect via an adhesion potential, we show that such adhesion, or aggregation, is unlikely to provide a physical rationalization for the viscosity increase observed in the experiments at moderate shear rates due to rigidified cells. Through numerical simulations, we also highlight that most of the viscosity increase of the suspension is due to the rigidity of the particles rather than their sickled or spherical shape. Our results are relevant to better characterize SCA, provide useful insights relevant to rheological consequences of blood transfusions, and, more generally, extend to the rheology of mixed suspensions having particles with different rigidities, as well as offering possibilities for developments in the field of soft material composites.
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Affiliation(s)
- Antonio Perazzo
- Novaflux Inc., Princeton, NJ 08540, USA
- Advanced BioDevices LLC, Princeton, NJ 08540, USA
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA.
| | - Zhangli Peng
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Y-N Young
- Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Zhe Feng
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - David K Wood
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - John M Higgins
- Center for Systems Biology and Department of Pathology, Massachusetts General Hospital, and Department of Systems Biology, Harvard Medical School, Boston, MA 02114, USA
| | - Howard A Stone
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA.
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20
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Banka AL, Eniola-Adefeso O. Method article: an in vitro blood flow model to advance the study of platelet adhesion utilizing a damaged endothelium. Platelets 2021; 33:692-699. [PMID: 34927530 DOI: 10.1080/09537104.2021.1988550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In vitro flow assays utilizing microfluidic devices are often used to study human platelets as an alternative to the costly animal models of hemostasis and thrombosis that may not accurately represent human platelet behavior in vivo. Here, we present a tunable in vitro model to study platelet behavior in human whole blood flow that includes both an inflamed, damaged endothelium and exposed extracellular matrix. We demonstrate that the model is adaptable across various anticoagulants, shear rates, and proteins for endothelial cell culture without the need for a complicated, custom-designed device. Furthermore, we verified the ability of this 'damaged endothelium' model as a screening method for potential anti-platelet or anti-thrombotic compounds using a P2Y12 receptor antagonist (ticagrelor), a pan-selectin inhibitor (Bimosiamose), and a histamine receptor antagonist (Cimetidine). These compounds significantly decreased platelet adhesion to the damaged endothelium, highlighting that this model can successfully screen anti-platelet compounds that target platelets directly or the endothelium indirectly.
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Affiliation(s)
- Alison Leigh Banka
- Department of Chemical Engineering, University of Michigan, Ann Arbor, USA
| | - Omolola Eniola-Adefeso
- Department of Chemical Engineering, University of Michigan, Ann Arbor, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, USA
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21
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Venous puncture wound hemostasis results in a vaulted thrombus structured by locally nucleated platelet aggregates. Commun Biol 2021; 4:1090. [PMID: 34531522 PMCID: PMC8445961 DOI: 10.1038/s42003-021-02615-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 08/03/2021] [Indexed: 12/22/2022] Open
Abstract
Primary hemostasis results in a platelet-rich thrombus that has long been assumed to form a solid plug. Unexpectedly, our 3-dimensional (3D) electron microscopy of mouse jugular vein puncture wounds revealed that the resulting thrombi were structured about localized, nucleated platelet aggregates, pedestals and columns, that produced a vaulted thrombus capped by extravascular platelet adherence. Pedestal and column surfaces were lined by procoagulant platelets. Furthermore, early steps in thrombus assembly were sensitive to P2Y12 inhibition and late steps to thrombin inhibition. Based on these results, we propose a Cap and Build, puncture wound paradigm that should have translational implications for bleeding control and hemostasis. Rhee, Pokrovskaya et al. utilize 3D electron microscopy of mouse jugular vein puncture wounds to reveal thrombi structured around localized, nucleated platelet aggregates that produced a vaulted thrombus capped by extravascular platelet adherence. As a result, the authors propose a “Cap and Build” paradigm of primary hemostasis.
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22
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Windberger U, Baroni P, Noirez L. Capillary-size flow of human blood plasma: Revealing hidden elasticity and scale dependence. J Biomed Mater Res A 2021; 110:298-303. [PMID: 34351058 DOI: 10.1002/jbm.a.37286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 07/17/2021] [Accepted: 07/21/2021] [Indexed: 11/11/2022]
Abstract
The dynamical mechanical analysis of blood generally uses models inspired by conventional flows, assuming scale-independent homogeneous flows and without considering fluid-surface boundary interactions. The present experimental study highlights the relevance of using an approach in line with physiological reality providing a strong interaction between the fluid and the boundary interface. New dynamic properties of human blood plasma are found: a finite shear elastic response (solid-like property) is identified in nearly static conditions, which also depends on the scale (being reinforced at small scales). The elastic behavior is confirmed by the induction, without heat transfer, of local hot and cold thermodynamic states evidencing a thermo-mechanical coupling in blood plasma so far known only in elastic materials. This finding opens new routes for medical diagnosis and device fabrication.
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Affiliation(s)
- Ursula Windberger
- Center for Biomedical Research, Decentralized Biomedical Facilities, Medical University Vienna, Vienna, Austria
| | - Patrick Baroni
- Laboratoire Léon Brillouin (CEA-CNRS), University of Paris-Saclay, Gif-sur-Yvette, France
| | - Laurence Noirez
- Laboratoire Léon Brillouin (CEA-CNRS), University of Paris-Saclay, Gif-sur-Yvette, France
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Ecker P, Sparer A, Lukitsch B, Elenkov M, Seltenhammer M, Crevenna R, Gföhler M, Harasek M, Windberger U. Animal blood in translational research: How to adjust animal blood viscosity to the human standard. Physiol Rep 2021; 9:e14880. [PMID: 34042285 PMCID: PMC8157792 DOI: 10.14814/phy2.14880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 04/27/2021] [Indexed: 11/24/2022] Open
Abstract
Animal blood is used in mock circulations or in forensic bloodstain pattern analysis. Blood viscosity is important in these settings as it determines the driving pressure through biomedical devices and the shape of the bloodstain. However, animal blood can never exactly mimic human blood due to erythrocyte properties differing among species. This results in the species-specific shear thinning behavior of blood suspensions, and it is therefore not enough to adjust the hematocrit of an animal blood sample to mimic the behavior of human blood over the entire range of shear rates that are present in the body. In order to optimize experiments that require animal blood, we need models to adapt the blood samples. We here offer mathematical models derived for each species using a multi linear regression approach to describe the influence of shear rate, hematocrit, and temperature on blood viscosity. Results show that pig blood cannot be recommended for experiments at low flow conditions (<200 s-1 ) even though erythrocyte properties are similar in pigs and humans. However, pig blood mimics human blood excellently at high flow condition. Horse blood is unsuitable as experimental model in this regard. For several studied conditions, sheep blood was the closest match to human blood viscosity among the tested species.
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Affiliation(s)
- Paul Ecker
- Institute of ChemicalEnvironmental and Bioscience EngineeringTU WienViennaAustria
- Institute of Engineering Design and Product DevelopmentTU WienViennaAustria
| | - Andreas Sparer
- Decentralized Biomedical FacilitiesCenter for Biomedical ResearchMedical University of ViennaViennaAustria
| | - Benjamin Lukitsch
- Institute of ChemicalEnvironmental and Bioscience EngineeringTU WienViennaAustria
| | - Martin Elenkov
- Institute of Engineering Design and Product DevelopmentTU WienViennaAustria
| | | | - Richard Crevenna
- University Clinic of Physical MedicineRehabilitation and Occupational MedicineMedical University ViennaViennaAustria
| | - Margit Gföhler
- Institute of Engineering Design and Product DevelopmentTU WienViennaAustria
| | - Michael Harasek
- Institute of ChemicalEnvironmental and Bioscience EngineeringTU WienViennaAustria
| | - Ursula Windberger
- Decentralized Biomedical FacilitiesCenter for Biomedical ResearchMedical University of ViennaViennaAustria
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