Deletion or Inhibition of NOD1 Favors Plaque Stability and Attenuates Atherothrombosis in Advanced Atherogenesis †
González-Ramos, Silvia (Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares)
Fernández-García, V. (Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares)
Recalde, Miriam (Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM))
Rodríguez, Cristina (Institut d'Investigació Biomèdica Sant Pau)
Martínez-González, José (Institut d'Investigació Biomèdica Sant Pau)
Andrés, Vicente (Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares)
Martín-Sanz, Paloma (Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas)
Boscá, Lisardo (Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares)
Universitat Autònoma de Barcelona

Date:	2020
Abstract:	Atherothrombosis, the main cause of acute coronary syndromes (ACS), is characterized by the rupture of the atherosclerotic plaque followed by the formation of thrombi. Fatal plaque rupture sites show large necrotic cores combined with high levels of inflammation and thin layers of collagen. Plaque necrosis due to the death of macrophages and smooth muscle cells (SMCs) remains critical in the process. To determine the contribution of the innate immunity receptor NOD1 to the stability of atherosclerotic plaque, Apoe-/- and Apoe-/- Nod1-/- atherosclerosis prone mice were placed on a high-fat diet for 16 weeks to assess post-mortem advanced atherosclerosis in the aortic sinus. The proliferation and apoptosis activity were analyzed, as well as the foam cell formation capacity in these lesions and in primary cultures of macrophages and vascular SMCs obtained from both groups of mice. Our results reinforce the preeminent role for NOD1 in human atherosclerosis. Advanced plaque analysis in the Apoe-/- atherosclerosis model suggests that NOD1 deficiency may decrease the risk of atherothrombosis by decreasing leukocyte infiltration and reducing macrophage apoptosis. Furthermore, Nod1-/- SMCs exhibit higher proliferation rates and decreased apoptotic activity, contributing to thicker fibrous caps with reduced content of pro-thrombotic collagen. These findings demonstrate a direct link between NOD1 and plaque vulnerability through effects on both macrophages and SMCs, suggesting promising insights for early detection of biomarkers for treating patients before ACS occurs.
Grants:	Ministerio de Economía y Competitividad SAF2015-64767-R Agencia Estatal de Investigación SAF2017-82436-R Ministerio de Economía y Competitividad CB16/11/00405 Ministerio de Economía y Competitividad CB16/11/00257 Ministerio de Economía y Competitividad SEV-2015-0505
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Atherothrombosis ; Coronary disease ; Innate immunity ; Pattern recognition receptors ; Vulnerable plaque
Published in:	Cells, Vol. 9 Núm. 9 (october 2020) , p. 632, ISSN 2073-4409

DOI: 10.3390/cells9092067
PMID: 32927803

14 p, 3.9 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut de Recerca Sant Pau
Articles > Research articles
Articles > Published articles