lymphocyte cytotoxicity of oxldl in patients with atherosclerosis
نویسندگان
چکیده
background: atherosclerosis, a chronic inflammatory disease of the vessel wall is characterized by local and systemic immune responses to a variety of antigens. oxidized low-density lipoprotein (oxldl) is considered as an important determining factor in the pathogenesis of atherosclerosis. objective: the purpose of this study was to investigate the degree of peripheral blood mononuclear cells (pbmc) vulnerability to in vitro oxldl-induced cytotoxicity from atherosclerotic patients in comparison to healthy individuals. methods: thirty patients with atherosclerotic lesions, confirmed by angiography, and 30 matched healthy individuals were investigated. pbmc was prepared from individuals' blood samples which were further stimulated with low dose (1 μg/ml) and high dose (50 μg/ml) of extensively oxidized ldl. mtt assay was utilized to measure cell viability and proliferation. stimulation index (si) was calculated as mean ratio of optical density (od) of the stimulated cells divided by od of untreated cells. results: low dose oxldl treatment caused no significant proliferative or cytotoxic effect in the control group; however, similar treatment caused significant cytotoxic effect in the patient group compared to the controls (p=0.026). high dose oxldl treatment induced more significant cytotoxicity in the patient compared to the control group (p=0.006). comparison of the si between the two groups of patients and controls showed significantly lower index by either the low (p=0.03) or the high dose (p
منابع مشابه
Lymphocyte Cytotoxicity of oxLDL in Patients with Atherosclerosis
Background: Atherosclerosis, a chronic inflammatory disease of the vessel wall is characterized by local and systemic immune responses to a variety of antigens. Oxidized low-density lipoprotein (oxLDL) is considered as an important determining factor in the pathogenesis of atherosclerosis. Objective: The purpose of this study was to investigate the degree of peripheral blood mononuclear cells (...
متن کاملLymphocyte cytotoxicity of oxLDL in patients with atherosclerosis.
BACKGROUND Atherosclerosis, a chronic inflammatory disease of the vessel wall, is characterized by local and systemic immune responses to a variety of antigens. Oxidized low-density lipoprotein (oxLDL) is considered as an important determining factor in the pathogenesis of atherosclerosis. OBJECTIVE The purpose of this study was to investigate the degree of peripheral blood mononuclear cells ...
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15 صفحه اولLOX-1, OxLDL, and Atherosclerosis
Oxidized low-density lipoprotein (OxLDL) contributes to the atherosclerotic plaque formation and progression by several mechanisms, including the induction of endothelial cell activation and dysfunction, macrophage foam cell formation, and smooth muscle cell migration and proliferation. Vascular wall cells express on their surface several scavenger receptors that mediate the cellular effects of...
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عنوان ژورنال:
iranian journal of immunologyجلد ۸، شماره ۱، صفحات ۲۷-۳۳
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