» Articles » PMID: 29921896

Biomimetic Post-capillary Venule Expansions for Leukocyte Adhesion Studies

Overview
Journal Sci Rep
Specialty Science
Date 2018 Jun 21
PMID 29921896
Citations 7
Authors
Affiliations
Soon will be listed here.
Abstract

Leukocyte adhesion and extravasation are maximal near the transition from capillary to post-capillary venule, and are strongly influenced by a confluence of scale-dependent physical effects. Mimicking the scale of physiological vessels using in vitro microfluidic systems allows the capture of these effects on leukocyte adhesion assays, but imposes practical limits on reproducibility and reliable quantification. Here we present a microfluidic platform that provides multiple (54-512) technical replicates within a 15-minute sample collection time, coupled with an automated computer vision analysis pipeline that captures leukocyte adhesion probabilities as a function of shear and extensional stresses. We report that in post-capillary channels of physiological scale, efficient leukocyte adhesion requires erythrocytes forcing leukocytes against the wall, a phenomenon that is promoted by the transitional flow in post-capillary venule expansions and dependent on the adhesion molecule ICAM-1.

Citing Articles

The role of galectins in mediating the adhesion of circulating cells to vascular endothelium.

Souchak J, Mohammed N, Lau L, Dimitroff C Front Immunol. 2024; 15:1395714.

PMID: 38840921 PMC: 11150550. DOI: 10.3389/fimmu.2024.1395714.


Sourcing cells for models of human vascular barriers of inflammation.

McCloskey M, Zhang V, Ahmad S, Walker S, Romanick S, Awad H Front Med Technol. 2022; 4():979768.

PMID: 36483299 PMC: 9724237. DOI: 10.3389/fmedt.2022.979768.


The Modular µSiM: A Mass Produced, Rapidly Assembled, and Reconfigurable Platform for the Study of Barrier Tissue Models In Vitro.

McCloskey M, Kasap P, Ahmad S, Su S, Chen K, Mansouri M Adv Healthc Mater. 2022; 11(18):e2200804.

PMID: 35899801 PMC: 9580267. DOI: 10.1002/adhm.202200804.


Assessments of microvascular function in organ systems.

Xu C, Sellke F, Abid M Am J Physiol Heart Circ Physiol. 2022; 322(6):H891-H905.

PMID: 35333121 PMC: 9037705. DOI: 10.1152/ajpheart.00589.2021.


Studies of Transendothelial Migration for Biological and Drug Discovery.

Salminen A, Allahyari Z, Gholizadeh S, McCloskey M, Ajalik R, Cottle R Front Med Technol. 2022; 2:600616.

PMID: 35047883 PMC: 8757899. DOI: 10.3389/fmedt.2020.600616.


References
1.
Laudanna C, Kim J, Constantin G, Butcher E . Rapid leukocyte integrin activation by chemokines. Immunol Rev. 2002; 186:37-46. DOI: 10.1034/j.1600-065x.2002.18604.x. View

2.
Handel T, Johnson Z, Crown S, Lau E, Proudfoot A . Regulation of protein function by glycosaminoglycans--as exemplified by chemokines. Annu Rev Biochem. 2005; 74:385-410. DOI: 10.1146/annurev.biochem.72.121801.161747. View

3.
Casanova-Acebes M, Pitaval C, Weiss L, Nombela-Arrieta C, Chevre R, A-Gonzalez N . Rhythmic modulation of the hematopoietic niche through neutrophil clearance. Cell. 2013; 153(5):1025-35. PMC: 4128329. DOI: 10.1016/j.cell.2013.04.040. View

4.
Gutierrez E, Groisman A . Quantitative measurements of the strength of adhesion of human neutrophils to a substratum in a microfluidic device. Anal Chem. 2007; 79(6):2249-58. DOI: 10.1021/ac061703n. View

5.
Smith M, Sperandio M, Galkina E, Ley K . Autoperfused mouse flow chamber reveals synergistic neutrophil accumulation through P-selectin and E-selectin. J Leukoc Biol. 2004; 76(5):985-93. DOI: 10.1189/jlb.1003483. View