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Statins Directly Influence the Polarization of Adipose Tissue Macrophages: A Role in Chronic Inflammation

S. Kauerova, H. Bartuskova, B. Muffova, L. Janousek, J. Fronek, M. Petras, R. Poledne, I. Kralova Lesna

. 2021 ; 9 (2) : . [pub] 20210219

Language English Country Switzerland

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc21010429

Grant support
17-28103A Ministerstvo Zdravotnictví Ceské Republiky
NV17-28103A MZ0 CEP Register

Statins represent one of the most widely used classes of drugs in current medicine. In addition to a substantial decrease in atherogenic low density lipoprotein (LDL) particle concentrations, several large trials have documented their potent anti-inflammatory activity. Based on our preliminary data, we showed that statins are able to decrease the proportion of pro-inflammatory macrophages (CD14+16+CD36high) in visceral adipose tissue in humans. In the present study including 118 healthy individuals (living kidney donors), a very close relationship between the pro-inflammatory macrophage proportion and LDL cholesterol levels was found. This was confirmed after adjustment for the most important risk factors. The effect of statins on the proportion of pro-inflammatory macrophages was also confirmed in an experimental model of the Prague hereditary hypercholesterolemia rat. A direct anti-inflammatory effect of fluvastatin on human macrophage polarization in vitro was documented. Based on modifying the LDL cholesterol concentrations, statins are suggested to decrease the cholesterol inflow through the lipid raft of macrophages in adipose tissue and hypercholesterolemia to enhance the pro-inflammatory macrophage phenotype polarization. On the contrary, due to their opposite effect, statins respond with anti-inflammatory activity, affecting the whole organism.

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