Objectives and design: Inflammation has a prominent role in the development of atherosclerosis. Type 2 diabetes could contribute to atherosclerosis development by promoting inflammation. This status might accelerate changes in intrinsic vascular wall cells and favor plaque formation. Cyclooxygenase 2 (COX-2) is highly expressed in atherosclerotic plaques. COX-2 gene expression is promoted through activation of toll-like receptor 4 (TLR4) and pro-inflammatory cytokine interleukin 1β (IL1-β). Aim of this study is to investigate whether expression profiles of pro-inflammatory genes such as COX-2, TLR4 and IL1-β in atherosclerotic plaques are altered in type 2 diabetes (T2D).Methods: Total RNA was isolated from plaques of atherosclerotic patients and expression of COX-2, TLR4, IL1-β analyzed using real-time PCR. Histological analysis was performed on sections of the plaque to establish the degree of instability.Results: Statistically significant differences in mRNA expression of COX-2 and IL1-β were found in plaques of T2D compared with non-T2D patients. A multi-variable linear regression model suggests that COX-2 mRNA expression is affected by T2D pathology and IL1-β mRNA expression in atherosclerotic plaques.Conclusions: Our results support the hypothesis that T2D pathology contributes in vivo to increase the inflammatory process associated with the atherosclerotic plaque formation, as shown by an increment of COX-2 and IL1-β mRNA expression.
Cyclooxygenase 2, toll-like receptor 4 and interleukin 1beta mRNA expression in atherosclerotic plaques of type 2 diabetic patients. / Baldan, A.; Ferronato, S.; Olivato, S.; Malerba, G.; Scuro, A.; Veraldi, G.F.; Gelati, M.; Ferrari, S.; Mariotto, S.; Pignatti, P.F.; Mazzucco, S.; Gomez-Lira, M.. - In: INFLAMMATION RESEARCH. - ISSN 1023-3830. - STAMPA. - 63:10(2014), pp. 851-858.
Titolo: | Cyclooxygenase 2, toll-like receptor 4 and interleukin 1beta mRNA expression in atherosclerotic plaques of type 2 diabetic patients. |
Autori: | |
Data di pubblicazione: | 2014 |
Rivista: | |
Citazione: | Cyclooxygenase 2, toll-like receptor 4 and interleukin 1beta mRNA expression in atherosclerotic plaques of type 2 diabetic patients. / Baldan, A.; Ferronato, S.; Olivato, S.; Malerba, G.; Scuro, A.; Veraldi, G.F.; Gelati, M.; Ferrari, S.; Mariotto, S.; Pignatti, P.F.; Mazzucco, S.; Gomez-Lira, M.. - In: INFLAMMATION RESEARCH. - ISSN 1023-3830. - STAMPA. - 63:10(2014), pp. 851-858. |
Abstract: | Objectives and design: Inflammation has a prominent role in the development of atherosclerosis. Type 2 diabetes could contribute to atherosclerosis development by promoting inflammation. This status might accelerate changes in intrinsic vascular wall cells and favor plaque formation. Cyclooxygenase 2 (COX-2) is highly expressed in atherosclerotic plaques. COX-2 gene expression is promoted through activation of toll-like receptor 4 (TLR4) and pro-inflammatory cytokine interleukin 1β (IL1-β). Aim of this study is to investigate whether expression profiles of pro-inflammatory genes such as COX-2, TLR4 and IL1-β in atherosclerotic plaques are altered in type 2 diabetes (T2D).Methods: Total RNA was isolated from plaques of atherosclerotic patients and expression of COX-2, TLR4, IL1-β analyzed using real-time PCR. Histological analysis was performed on sections of the plaque to establish the degree of instability.Results: Statistically significant differences in mRNA expression of COX-2 and IL1-β were found in plaques of T2D compared with non-T2D patients. A multi-variable linear regression model suggests that COX-2 mRNA expression is affected by T2D pathology and IL1-β mRNA expression in atherosclerotic plaques.Conclusions: Our results support the hypothesis that T2D pathology contributes in vivo to increase the inflammatory process associated with the atherosclerotic plaque formation, as shown by an increment of COX-2 and IL1-β mRNA expression. |
Handle: | http://hdl.handle.net/11562/774166 |
Appare nelle tipologie: | 01.01 Articolo in Rivista |
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