Lipoprotein apheresis influences monocyte subpopulations

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Background Monocytes can be differentiated into subpopulations depending on their expression profile of CD14 and CD16. CD16-positive monocytes are associated with coronary artery disease. Up to now, no data exist about the effect of lipoprotein apheresis (LA) on the distribution of monocyte subpopulations. Methods 80 patients who underwent LA at the University Hospital Dresden were included in the study. 8 out of the 80 LA patients received LA for the first time at the time point of blood analysis. Six different methods of LA were used (H.E.L.P. n = 8; Liposorber D n = 10; LF n = 14; DALI n = 17; MONET n = 11; Therasorb® LDL n = 12). Blood samples were taken immediately before and after LA and analyzed for CD14 and CD16 expression on monocytes. A total of 42 patients with cardiovascular risk factors but no indication for LA served as control group. Results The composition of monocyte-population was analyzed in regard to the 3 subpopulations. After LA, an increase in classical monocytes (CD14++CD16) (93.3% vs. 93.9%, p < 0.01) and a decrease in non-classical monocytes (CD14+CD16+) (1.5% vs 1.0%; p < 0.001) were observed. LA did not change the amount of intermediate monocytes (CD14++CD16+) (5.3% vs. 5.1%). Two methods (MONET and Therasorb® LDL) did not influence the distribution of monocyte subpopulations. Interestingly, patients with LDL-C above 2.5 mmol/l prior LA showed increased amounts of intermediate monocytes. Conclusion The distribution of monocyte populations is influenced by LA but depends on the distinct method of LA. Influences of LA were mainly observed in the content of classical and non-classical monocytes, whereas the intermediate monocyte population remained unaltered by LA.

Details

Original languageEnglish
Pages (from-to)108-114
Number of pages7
JournalAtherosclerosis Supplements
Volume30
Publication statusPublished - Nov 2017
Peer-reviewedYes

External IDs

Scopus 85032442890
PubMed 29096825
researchoutputwizard legacy.publication#78910
ORCID /0000-0001-7803-1972/work/142235057

Keywords

Keywords

  • Lipoprotein apheresis, Monocytes, Subpopulations