TY - JOUR
T1 - Macrophage ATP citrate lyase deficiency stabilizes atherosclerotic plaques
AU - Baardman, Jeroen
AU - Verberk, Sanne G.S.
AU - van der Velden, Saskia
AU - Gijbels, Marion J.J.
AU - van Roomen, Cindy P.P.A.
AU - Sluimer, Judith C.
AU - Broos, Jelle Y.
AU - Griffith, Guillermo R.
AU - Prange, Koen H.M.
AU - van Weeghel, Michel
AU - Lakbir, Soufyan
AU - Molenaar, Douwe
AU - Meinster, Elisa
AU - Neele, Annette E.
AU - Kooij, Gijs
AU - de Vries, Helga E.
AU - Lutgens, Esther
AU - Wellen, Kathryn E.
AU - de Winther, Menno P.J.
AU - den Bossche, Jan Van
PY - 2020/12
Y1 - 2020/12
N2 - Macrophages represent a major immune cell population in atherosclerotic plaques and play central role in the progression of this lipid-driven chronic inflammatory disease. Targeting immunometabolism is proposed as a strategy to revert aberrant macrophage activation to improve disease outcome. Here, we show ATP citrate lyase (Acly) to be activated in inflammatory macrophages and human atherosclerotic plaques. We demonstrate that myeloid Acly deficiency induces a stable plaque phenotype characterized by increased collagen deposition and fibrous cap thickness, along with a smaller necrotic core. In-depth functional, lipidomic, and transcriptional characterization indicate deregulated fatty acid and cholesterol biosynthesis and reduced liver X receptor activation within the macrophages in vitro. This results in macrophages that are more prone to undergo apoptosis, whilst maintaining their capacity to phagocytose apoptotic cells. Together, our results indicate that targeting macrophage metabolism improves atherosclerosis outcome and we reveal Acly as a promising therapeutic target to stabilize atherosclerotic plaques.
AB - Macrophages represent a major immune cell population in atherosclerotic plaques and play central role in the progression of this lipid-driven chronic inflammatory disease. Targeting immunometabolism is proposed as a strategy to revert aberrant macrophage activation to improve disease outcome. Here, we show ATP citrate lyase (Acly) to be activated in inflammatory macrophages and human atherosclerotic plaques. We demonstrate that myeloid Acly deficiency induces a stable plaque phenotype characterized by increased collagen deposition and fibrous cap thickness, along with a smaller necrotic core. In-depth functional, lipidomic, and transcriptional characterization indicate deregulated fatty acid and cholesterol biosynthesis and reduced liver X receptor activation within the macrophages in vitro. This results in macrophages that are more prone to undergo apoptosis, whilst maintaining their capacity to phagocytose apoptotic cells. Together, our results indicate that targeting macrophage metabolism improves atherosclerosis outcome and we reveal Acly as a promising therapeutic target to stabilize atherosclerotic plaques.
UR - https://research.vu.nl/en/publications/b904c5ba-d7f2-473f-9e15-0621838f34e2
U2 - 10.1038/s41467-020-20141-z
DO - 10.1038/s41467-020-20141-z
M3 - Article
C2 - 33293558
SN - 2041-1723
VL - 11
JO - Nature Communications
JF - Nature Communications
M1 - 6296
ER -