Li-Xia Shu, Liu-Li Cao, Xin Guo, Zong-Bao Wang, Shu-Zhi Wang
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Atherosclerosis (AS) is a chronic inflammatory vascular disease that occurs in the intima of large and medium-sized arteries with the immune system's involvement. It is a common pathological basis for high morbidity and mortality of cardiovascular diseases. Abnormal proliferation of apoptotic cells and necrotic cells leads to AS plaque expansion, necrotic core formation, and rupture. In the early stage of AS, macrophages exert an efferocytosis effect to engulf and degrade apoptotic, dead, damaged, or senescent cells by efferocytosis, thus enabling the regulation of the organism. In the early stage of AS, macrophages rely on this effect to slow down the process of AS. However, in the advanced stage of AS, the efferocytosis of macrophages within the plaque is impaired, which leads to the inability of macrophages to promptly remove the apoptotic cells (ACs) from the organism promptly, causing exacerbation of AS. Moreover, upregulation of CD47 expression in AS plaques also protects ACs from phagocytosis by macrophages, resulting in a large amount of residual ACs in the plaque, further expanding the necrotic core. In this review, we discussed the molecular mechanisms involved in the process of efferocytosis and how efferocytosis is impaired and regulated during AS, hoping to provide new insights for treating AS.
期刊介绍:
The Journal of Molecular Medicine publishes original research articles and review articles that range from basic findings in mechanisms of disease pathogenesis to therapy. The focus includes all human diseases, including but not limited to:
Aging, angiogenesis, autoimmune diseases as well as other inflammatory diseases, cancer, cardiovascular diseases, development and differentiation, endocrinology, gastrointestinal diseases and hepatology, genetics and epigenetics, hematology, hypoxia research, immunology, infectious diseases, metabolic disorders, neuroscience of diseases, -omics based disease research, regenerative medicine, and stem cell research.
Studies solely based on cell lines will not be considered. Studies that are based on model organisms will be considered as long as they are directly relevant to human disease.