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Martin-Lorenzo M, Cao J, Van Kuijk K, Gijbels M, Claes B, Heeren R, Sluimer J, Alvarez-Llamas G, Balluff B. In-situ lipid alterations of aortic atherosclerosis in LDLR-deficient mice using mass spectrometry imaging. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Sluimer J, Van Kuijk K, Demandt JAF, Perales-Paton J, Kuppe C, Jin H, Matic L, Mees B, Hedin U, Biessen EAL, Carmeliet P, Baker AH, Kramann RK, Schurgers LJ, Saez-Rodriguez J. Deficiency of myeloid prolyl hydroxylase domain proteins aggravates atherogenesis via macrophage apoptosis and paracrine fibrotic signaling. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Atherosclerotic plaque hypoxia is detrimental for macrophage function. Prolyl hydroxylases (PHDs) initiate cellular hypoxic responses, possibly influencing macrophage function in plaque hypoxia. Thus, we aimed to elucidate the role of myeloid PHDs in atherosclerosis.
Methods
Myeloid specific PHD knockout (PHDko) mice were fed high cholesterol diet for 6–12 weeks to induce atherosclerosis. Plaque parameters, e.g. plaque size and macrophage content, were analyzed. Bulk and single cell RNA sequencing was performed on PHD2 BMDMs and plaque macrophages, respectively.
Results
Aortic root plaque size was augmented 2.6fold in PHD2cko, and 1.4-fold in PHD3ko, but not in PHD1ko mice compared to controls. Macrophage apoptosis was promoted in PHD2cko and PHD3ko mice in vitro and in vivo, via the HIF1α/BNIP3 axis. Bulk and single cell RNA data of PHD2cko bone-marrow-derived macrophages (BMDM) and plaque macrophages, respectively, confirmed these findings and were validated by siRNA silencing. Human plaque BNIP3 mRNA associated with plaque necrotic core, suggesting similar adverse effects. Further, PHD2cko plaques displayed enhanced fibrosis, independent of macrophage MMP activity, collagen secretion or proliferation and of SMC collagen production, or proliferation. Rather, PHD2cko BMDMs enhanced fibroblast collagen secretion in a paracrine manner. Nichenet in silico analysis of macrophage-fibroblast communication predicted SPP1 signaling as regulator, in line with enhanced plaque SPP1 protein content, and SPP1 mRNA in TREM2-foamy plaque macrophages, but not in neutrophils.
Conclusion
Myeloid PHD2cko and PHD3ko enhanced plaque growth, macrophage apoptosis, and PHD2cko activated paracrine collagen secretion by fibroblasts.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): NWO, Leducq
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Affiliation(s)
- J Sluimer
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - K Van Kuijk
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - J A F Demandt
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - J Perales-Paton
- University of Heidelberg, BioQuant, Institute for computational biomedicine, Heidelberg, Germany
| | - C Kuppe
- RWTH Aachen University, Division of Nephrology and Clinical Immunology, Aachen, Germany
| | - H Jin
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - L Matic
- Karolinska Institute, Stockholm, Sweden
| | - B Mees
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - U Hedin
- Karolinska Institute, Stockholm, Sweden
| | - E A L Biessen
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - P Carmeliet
- Vesalius Research Centre, Laboratory of Angiogenesis and Neurovascular Link, Leuven, Belgium
| | - A H Baker
- University of Edinburgh, BHF Centre for Cardiovascular Sciences (CVS), Edinburgh, United Kingdom
| | - R K Kramann
- RWTH Aachen University, Division of Nephrology and Clinical Immunology, Aachen, Germany
| | - L J Schurgers
- Maastricht University, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, Netherlands (The)
| | - J Saez-Rodriguez
- University of Heidelberg, BioQuant, Institute for computational biomedicine, Heidelberg, Germany
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Van Kuijk K, Mccracken I, Tillie R, Schreur RW, Taylor R, Dobie R, Temmerman L, Ramachamdran P, Noels H, Owens G, Jin H, Wilson-Kanamori J, Mees B, Biessen E, Henderson N, Baker A, Sluimer J. Single cell sequencing reveals fibroblast heterogeneity in healthy and diseased vasculature. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Van Kuijk K, Theelen T, Demandt J, Marsch E, Gijbels M, Jin H, Reutelingsperger C, Cosemans J, Schurgers L, Carmeliet P, Biessen E, Daemen M, Sluimer J. Myeloid Phd2 Knockdown Drives Macrophage Apoptosis And Paracrine Fibroblast/Smooth Muscle Cell Collagen Secretion Leading To Atherosclerotic Plaque Fibrosis. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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