Human Duffy blood group alloantigen system influences the measurement of monocyte chemoattractant protein-1 (MCP-1) in serum but not in plasma.
Clin Lab 2012;
58:185-188. [PMID:
22372364]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND
We explored whether the Asp42Gly polymorphism (rs12075) in the DARC gene represents a confounding factor in the interpretation of monocyte chemoattractant protein-1 (MCP-1) concentration in circulating blood.
METHODS
MCP-1 concentration in serum and plasma were measured in 278 healthy Caucasian participants who are representative of our geographic area. The rs12075 genotype distribution was also assessed in this population.
RESULTS
Plasma MCP-1 concentration did not vary among the rs12075 polymorphism derived genotypes [in pg/mL, AA: 171.9 (100.2 - 287.2), AG: 178.9 (105.1 - 326.4) and GG: 173.7 (94.4 - 405.7)]. However, there were significant increases in serum MCP-1 related to the presence of the A allele [in pg/mL, AA: 334.6 (180.4 - 756.4), AG: 299.1 (166.1 - 634.9) and GG: 249.1 (149.3 - 578.1)].
CONCLUSIONS
These findings limit the value of circulating MCP-1 as a biomarker and apparently indicate a pathophysiological role for silent chemokine receptors.
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