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Scand J Clin Lab Invest. 2010 Jul;70(4):237-43. doi: 10.3109/00365511003695608.

Circulating soluble CTLA-4 is related to inflammatory markers in the 70 year old population.

Author information

1
Rheumatology Unit, Center for Molecular Medicine, Karolinska Institutet, Stockholm. priya.sakthivel@ki.se

Abstract

OBJECTIVE:

Measurement of inflammatory mediators is an important tool to assess inflammation. We have, therefore, conducted a survey within the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) study to evaluate the inter-relationship between soluble CTLA-4 (sCTLA-4) and other inflammatory markers.

MATERIALS AND METHODS:

This is a population-based study, designed to quantify the circulating serum levels of sCTLA-4 and other inflammatory markers such as CRP and pro-inflammatory cytokines and chemokines by in-house ELISA, Immuno-turbidimetry and multiplex ELISA, respectively. A total of 1016 Swedish Caucasians aged 70 years old were recruited. The statistical analysis was performed by ANOVA.

RESULTS:

The levels of sCTLA-4 were directly related to the levels of pro-inflammatory cytokines such as IL-6, IL-1alpha, IL-1beta, TNF-alpha, IFN-gamma and chemokines such as IL-8. However, the levels of sCTLA-4 were inversely related to the levels of MCP-1. Also, we could not demonstrate any relation between the levels of sCTLA-4 and CRP or soluble adhesion molecules.

CONCLUSIONS:

Circulating sCTLA-4 could be used as a biomarker for inflammation, potentially reflecting dysregulated T lymphocytes.

PMID:
20331384
DOI:
10.3109/00365511003695608
[Indexed for MEDLINE]

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