Microparticles from Endothelial Cells and Immune Cells in Patients with Takayasu Arteritis.

Abstract:

AIM:This study was designed to analyze microparticles (MPs) from endothelial cells (EMPs) and immune cells from healthy individuals and paitents with Takayasu arteritis (TA), and any possible relationships between MPs and TA acitivity. METHODS:MPs derived from the plasma of 51 subjects were analyzed, including 32 patients with TA and 19 healthy individuals. Flow cytometry was performed with Annexin (Anx)-V and antibodies against surface markers of endothelial cells (CD144), T cells (CD3), B cells (CD19), and monocytes (CD14). RESULTS:The concentrations of total EMPs, AnxV+ EMPs and AnxV- EMPs were significantly increased when comparing patients with TA and healthy controls (54×103 vs. 32×103 MPs /ml, P=0.0004; 22×103 vs. 12×103 MPs /ml, P=0.0006; and 31×103 vs. 19×103 MPs /ml, P=0.0005), and comparing active TA patients with remission ones (85×103 vs. 45×103 MPs /ml, P=0.016; 39×103 vs. 14×103 MPs /ml, P=0.0092; and 47×103 vs.29×103 MPs /ml, P=0.0371). In addition, the concentrations of total EMPs (odds ratio [OR]=1.024, 95% confidence interval [CI]: 1.001 to 1.048, P=0.037), AnxV+(OR=1.089, 95%CI: 1.011 to 1.172, P=0.024), and AnxV- EMPs (OR=1.029, 95% CI: 1.002 to 1.056, P=0.034) were positively related to TA activity. With multiple linear regression analysis, platelet was associated with both total and AnxV- EMP concentrations independently, while erythrocyte sedimentation rate was independently correlated with AnxV+EMPs. CONCLUSION:Concentrations of endothelial microparticles are correlated with inflammation in Takayasu arteritis and may be useful markers to assess disease activity.

journal_name

J Atheroscler Thromb

authors

Cheng X,Dang A,Lv N,Zhao T

doi

10.5551/jat.45351

subject

Has Abstract

pub_date

2019-06-01 00:00:00

pages

547-558

issue

6

eissn

1340-3478

issn

1880-3873

journal_volume

26

pub_type

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