Abstract
Although the understanding the pathophysiology of atherogenesis and atherosclerosis progression has been one of the major goals of cardiovascular research during the last decades, the precise mechanisms underlying plaque destabilization are still unknown. The disruption of the plaque and the thrombosis in the lumen that are mostly determined by the expansion of the necrotic core (NC) are driven by various mechanisms, including accelerated macrophage apoptosis and defective phagocytic clearance (defective efferocytosis). Oxidative stress is implicated in the expansion of the NC: in fact, many oxidized compounds and processes contribute to the macrophage apoptosis; in addition, the oxidized derivatives of polyunsatured fatty acids promote defective efferocytosis, with the final result of NC expansion. In the last years the role of the endoplasmic reticulum (ER) stress is under investigation to better define its possible contribution in affecting the NC expansion. The abnormal amount of apoptotic cells in the vulnerable plaque has been demonstrated to be related both to the sustained ER stress and to the expression of survival and protective genes, such as the unfolded protein response or/and the nuclear erytroid- related factor 2. In this review the authors focus on the promising results of the oxidative and ER stress in contributing to triggering and orchestrating the atherosclerotic plaque vulnerability.
Keywords: Apoptosis, atherosclerosis, efferocytosis, endoplasmic reticulum stress, necrotic core, oxidative stress, vulnerable plaque.
Current Medicinal Chemistry
Title:The Atherosclerotic Plaque Vulnerability: Focus on the Oxidative and Endoplasmic Reticulum Stress in Orchestrating the Macrophage Apoptosis in the Formation of the Necrotic Core
Volume: 22 Issue: 13
Author(s): Luciano Cominacini, Ulisse Garbin, Chiara Mozzini, Chiara Stranieri, Andrea Pasini, Erika Solani, Irene Alessandra Tinelli and Anna Fratta Pasini
Affiliation:
Keywords: Apoptosis, atherosclerosis, efferocytosis, endoplasmic reticulum stress, necrotic core, oxidative stress, vulnerable plaque.
Abstract: Although the understanding the pathophysiology of atherogenesis and atherosclerosis progression has been one of the major goals of cardiovascular research during the last decades, the precise mechanisms underlying plaque destabilization are still unknown. The disruption of the plaque and the thrombosis in the lumen that are mostly determined by the expansion of the necrotic core (NC) are driven by various mechanisms, including accelerated macrophage apoptosis and defective phagocytic clearance (defective efferocytosis). Oxidative stress is implicated in the expansion of the NC: in fact, many oxidized compounds and processes contribute to the macrophage apoptosis; in addition, the oxidized derivatives of polyunsatured fatty acids promote defective efferocytosis, with the final result of NC expansion. In the last years the role of the endoplasmic reticulum (ER) stress is under investigation to better define its possible contribution in affecting the NC expansion. The abnormal amount of apoptotic cells in the vulnerable plaque has been demonstrated to be related both to the sustained ER stress and to the expression of survival and protective genes, such as the unfolded protein response or/and the nuclear erytroid- related factor 2. In this review the authors focus on the promising results of the oxidative and ER stress in contributing to triggering and orchestrating the atherosclerotic plaque vulnerability.
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Cominacini Luciano, Garbin Ulisse, Mozzini Chiara, Stranieri Chiara, Pasini Andrea, Solani Erika, Alessandra Tinelli Irene and Fratta Pasini Anna, The Atherosclerotic Plaque Vulnerability: Focus on the Oxidative and Endoplasmic Reticulum Stress in Orchestrating the Macrophage Apoptosis in the Formation of the Necrotic Core, Current Medicinal Chemistry 2015; 22 (13) . https://dx.doi.org/10.2174/0929867322666150311150829
DOI https://dx.doi.org/10.2174/0929867322666150311150829 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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