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Endothelial progenitor cells are differentially impaired in ANCA-associated vasculitis compared to healthy controls

Overview of attention for article published in Arthritis Research & Therapy, June 2016
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Title
Endothelial progenitor cells are differentially impaired in ANCA-associated vasculitis compared to healthy controls
Published in
Arthritis Research & Therapy, June 2016
DOI 10.1186/s13075-016-1044-8
Pubmed ID
Authors

B. Wilde, A. Mertens, S. J. Arends, R. P. Rouhl, R. Bijleveld, J. Huitema, S. A. Timmermans, J. Damoiseaux, O. Witzke, A. M. Duijvestijn, P. van Paassen, R. J. van Oostenbrugge, J. W. Cohen Tervaert

Abstract

Endothelial progenitor cells (EPC) are of major importance in vascular repair under healthy circumstances. Vascular injury in need of repair occurs frequently in ANCA-associated vasculitis (AAV). A specialized T cell subset enhancing EPC function and differentiation has recently been described. These angiogenic T cells (Tang) may have an important impact on the vascular repair process. Therefore, the aim of our study was to investigate EPC and Tang in AAV. Fifty-three patients suffering from AAV and 29 healthy controls (HC) were enrolled in our study. Forty-four patients were in remission, nine patients were in active state of disease. Patients were either untreated or were under monotherapy with low-dose steroids (max. 5 mg/day) at the time of sampling. Circulating EPC and Tang were determined by flow cytometry (FACS). The functional capacity of EPC was assessed by established cell culture methods. Circulating EPC were significantly decreased in AAV as compared to HC. The capacity of EPC to differentiate and proliferate was differentially impaired in patients as compared to HC. The outgrowth of endothelial colony-forming cells (ECFC) was severely decreased in patients whereas colony-forming units-endothelial cell (CFU-EC) outgrowth was unaffected. ECFC and CFU-EC differentiation was strictly T cell-dependent. Patients with a relapsing disease course had an impaired ECFC outgrowth and expansion of Tang as compared to patients with a stable, nonrelapsing disease. The differentiation process of EPC is impaired in AAV. This may favor insufficient vascular repair promoting a relapsing disease course. Finally, these factors may explain a higher cardiovascular morbidity as has been previously documented in AAV.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 19 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 19 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 5 26%
Professor > Associate Professor 4 21%
Other 3 16%
Researcher 2 11%
Professor 1 5%
Other 2 11%
Unknown 2 11%
Readers by discipline Count As %
Medicine and Dentistry 7 37%
Biochemistry, Genetics and Molecular Biology 3 16%
Immunology and Microbiology 3 16%
Agricultural and Biological Sciences 2 11%
Neuroscience 2 11%
Other 0 0%
Unknown 2 11%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 June 2016.
All research outputs
#20,656,161
of 25,374,647 outputs
Outputs from Arthritis Research & Therapy
#2,907
of 3,381 outputs
Outputs of similar age
#284,112
of 368,659 outputs
Outputs of similar age from Arthritis Research & Therapy
#50
of 61 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. This one is in the 10th percentile – i.e., 10% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,381 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.2. This one is in the 7th percentile – i.e., 7% of its peers scored the same or lower than it.
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We're also able to compare this research output to 61 others from the same source and published within six weeks on either side of this one. This one is in the 9th percentile – i.e., 9% of its contemporaries scored the same or lower than it.