Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease

Coronary Artery Disease (CAD), one of the most common heart disease, is the leading cause of death in the world. One of the main causes for CAD is atherosclerosis. There have been many studies done to identify genes responsible for atherosclerotic plaques formation. Recently, Genome-wide association...

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Main Authors: Hsu, Shih Han, George, Benjamin Lawrence
Other Authors: Thirumaran s/o Thanabalu
Format: Thesis
Language:English
Published: 2016
Subjects:
Online Access:http://hdl.handle.net/10356/68406
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author Hsu, Shih Han
George, Benjamin Lawrence
author2 Thirumaran s/o Thanabalu
author_facet Thirumaran s/o Thanabalu
Hsu, Shih Han
George, Benjamin Lawrence
author_sort Hsu, Shih Han
collection NTU
description Coronary Artery Disease (CAD), one of the most common heart disease, is the leading cause of death in the world. One of the main causes for CAD is atherosclerosis. There have been many studies done to identify genes responsible for atherosclerotic plaques formation. Recently, Genome-wide association studies (GWAS) done by Ghosh et al. has shown a strong association between semaphorin pathway with CAD. Additionally, the protease Furin was found to be a member in 6 of the 32 replicated, CAD associated pathways. To follow up for these novel findings, present studies examined the regulation of Semaphorin pathway gene expression and the effects of Furin knock-down in RAW264.7 macrophages. CAD characterized cells were induced using human high OxLDL and Furin knock-down was carried out using siRNA. Preliminary results suggest that Semaphorin pathway could be regulated by OxLDL with decrease in NRP1 and PLXNA2 expression. Presence of OxLDL also reduced the expression of Sma and Icam1 by more than 50%. Knock-down of Furin reduced expression of IL-1B, CD86 and CD205 by more than 50%. Future studies will include measurement of protein levels for candidate gene and examine of OxLDL and Furin knock-down effect in endothelial and vascular smooth muscle cells.
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spelling ntu-10356/684062023-02-28T18:47:53Z Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease Hsu, Shih Han George, Benjamin Lawrence Thirumaran s/o Thanabalu School of Biological Sciences Sujoy Ghosh DRNTU::Science Coronary Artery Disease (CAD), one of the most common heart disease, is the leading cause of death in the world. One of the main causes for CAD is atherosclerosis. There have been many studies done to identify genes responsible for atherosclerotic plaques formation. Recently, Genome-wide association studies (GWAS) done by Ghosh et al. has shown a strong association between semaphorin pathway with CAD. Additionally, the protease Furin was found to be a member in 6 of the 32 replicated, CAD associated pathways. To follow up for these novel findings, present studies examined the regulation of Semaphorin pathway gene expression and the effects of Furin knock-down in RAW264.7 macrophages. CAD characterized cells were induced using human high OxLDL and Furin knock-down was carried out using siRNA. Preliminary results suggest that Semaphorin pathway could be regulated by OxLDL with decrease in NRP1 and PLXNA2 expression. Presence of OxLDL also reduced the expression of Sma and Icam1 by more than 50%. Knock-down of Furin reduced expression of IL-1B, CD86 and CD205 by more than 50%. Future studies will include measurement of protein levels for candidate gene and examine of OxLDL and Furin knock-down effect in endothelial and vascular smooth muscle cells. Doctor of Philosophy (SBS) 2016-05-25T09:09:26Z 2016-05-25T09:09:26Z 2016 Thesis http://hdl.handle.net/10356/68406 en application/pdf
spellingShingle DRNTU::Science
Hsu, Shih Han
George, Benjamin Lawrence
Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease
title Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease
title_full Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease
title_fullStr Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease
title_full_unstemmed Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease
title_short Investigations into Semaphorin signaling and Furin as novel effectors of coronary artery disease
title_sort investigations into semaphorin signaling and furin as novel effectors of coronary artery disease
topic DRNTU::Science
url http://hdl.handle.net/10356/68406
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