Paul F A Teunissen1, Marieke C Boshuizen2, Maurits R Hollander1, Paul S Biesbroek1, Nina W van der Hoeven1, Jan-Quinten Mol1, Marion J Gijbels3, Saskia van der Velden2, Tineke C van der Pouw Kraan4, Anton J Horrevoets4, Menno P de Winther5, Niels van Royen6. 1. Department of Cardiology, VU University Medical Center, De Boelelaan 1117, 1081HV Amsterdam, The Netherlands. 2. Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands. 3. Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands Department of Pathology and Molecular Genetics, CARIM, Maastricht, The Netherlands. 4. Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands. 5. Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands m.dewinther@amc.uva.nl n.vanroyen@vumc.nl. 6. Department of Cardiology, VU University Medical Center, De Boelelaan 1117, 1081HV Amsterdam, The Netherlands m.dewinther@amc.uva.nl n.vanroyen@vumc.nl.
Abstract
AIMS: IFN-beta (IFNβ) signalling is increased in patients with insufficient coronary collateral growth (i.e. arteriogenesis) and IFNβ hampers arteriogenesis in mice. A downside of most pro-arteriogenic agents investigated in the past has been their pro-atherosclerotic properties, rendering them unsuitable for therapeutic application. Interestingly, type I IFNs have also been identified as pro-atherosclerotic cytokines and IFNβ treatment increases plaque formation and accumulation of macrophages. We therefore hypothesized that mAb therapy to inhibit IFNβ signalling would stimulate arteriogenesis and simultaneously attenuate-rather than aggravate-atherosclerosis. METHODS AND RESULTS: In a murine hindlimb ischaemia model, atherosclerotic low-density lipoprotein receptor knockout (LDLR(-/-)) mice were treated during a 4-week period with blocking MAbs specific for mouse IFN-α/β receptor subunit 1 (IFNAR1) or murine IgG isotype as a control. The arteriogenic response was quantified using laser Doppler perfusion imaging (LDPI) as well as immunohistochemistry. Effects on atherosclerosis were determined by quantification of plaque area and analysis of plaque composition. Downstream targets of IFNβ were assessed by real-time PCR (RT-PCR) in the aortic arch. Hindlimb perfusion restoration after femoral artery ligation was improved in mice treated with anti-IFNAR1 compared with controls as assessed by LDPI. This was accompanied by a decrease in CXCL10 expression in the IFNAR1 MAb-treated group. Anti-IFNAR1 treatment reduced plaque apoptosis without affecting total plaque area or other general plaque composition parameters. Results were confirmed in a short-term model and in apolipoprotein E knockout (APOE)(-/-) mice. CONCLUSION: Monoclonal anti-IFNAR1 therapy during a 4-week treatment period stimulates collateral artery growth in mice and did not enhance atherosclerotic burden. This is the first reported successful strategy using MAbs to stimulate arteriogenesis. Published on behalf of the European Society of Cardiology. All rights reserved.
AIMS: IFN-beta (IFNβ) signalling is increased in patients with insufficient coronary collateral growth (i.e. arteriogenesis) and IFNβ hampers arteriogenesis in mice. A downside of most pro-arteriogenic agents investigated in the past has been their pro-atherosclerotic properties, rendering them unsuitable for therapeutic application. Interestingly, type I IFNs have also been identified as pro-atherosclerotic cytokines and IFNβ treatment increases plaque formation and accumulation of macrophages. We therefore hypothesized that mAb therapy to inhibit IFNβ signalling would stimulate arteriogenesis and simultaneously attenuate-rather than aggravate-atherosclerosis. METHODS AND RESULTS: In a murine hindlimb ischaemia model, atheroscleroticlow-density lipoprotein receptor knockout (LDLR(-/-)) mice were treated during a 4-week period with blocking MAbs specific for mouse IFN-α/β receptor subunit 1 (IFNAR1) or murine IgG isotype as a control. The arteriogenic response was quantified using laser Doppler perfusion imaging (LDPI) as well as immunohistochemistry. Effects on atherosclerosis were determined by quantification of plaque area and analysis of plaque composition. Downstream targets of IFNβ were assessed by real-time PCR (RT-PCR) in the aortic arch. Hindlimb perfusion restoration after femoral artery ligation was improved in mice treated with anti-IFNAR1 compared with controls as assessed by LDPI. This was accompanied by a decrease in CXCL10 expression in the IFNAR1 MAb-treated group. Anti-IFNAR1 treatment reduced plaque apoptosis without affecting total plaque area or other general plaque composition parameters. Results were confirmed in a short-term model and in apolipoprotein E knockout (APOE)(-/-) mice. CONCLUSION: Monoclonal anti-IFNAR1 therapy during a 4-week treatment period stimulates collateral artery growth in mice and did not enhance atherosclerotic burden. This is the first reported successful strategy using MAbs to stimulate arteriogenesis. Published on behalf of the European Society of Cardiology. All rights reserved.
Authors: Karin H Simons; Margreet R de Vries; Rob C M de Jong; Hendrika A B Peters; J Wouter Jukema; Paul H A Quax Journal: J Cell Mol Med Date: 2019-04-01 Impact factor: 5.310
Authors: Maurits R Hollander; Matthijs F Jansen; Luuk H G A Hopman; Edward Dolk; Peter M van de Ven; Paul Knaapen; Anton J Horrevoets; Esther Lutgens; Niels van Royen Journal: J Am Heart Assoc Date: 2019-10-09 Impact factor: 5.501