Inhibition Of Endothelial Cell Adhesion Molecule Expression By High Density Lipoproteins
Funder
National Health and Medical Research Council
Funding Amount
$80,550.00
Summary
It is well known that high levels of cholesterol in blood cause coronary heart disease. However, it is also known that not all of the blood cholesterol is bad. If it is carried in particles called low density lipoproteins or LDLs it causes heart disease. But if it is carried in other particles known as high density lipoproteins or HDLs it does not. In fact, it is now well known that HDLs actually protect against the development of coronary heart disease. There are two main actions of HDLs that c ....It is well known that high levels of cholesterol in blood cause coronary heart disease. However, it is also known that not all of the blood cholesterol is bad. If it is carried in particles called low density lipoproteins or LDLs it causes heart disease. But if it is carried in other particles known as high density lipoproteins or HDLs it does not. In fact, it is now well known that HDLs actually protect against the development of coronary heart disease. There are two main actions of HDLs that contribute to their ability to protect. Firstly, they are known to drain cholesterol out of coronary arteries. We have recently shown that they have a second action. The end result of this second action is a slowing down of the entry into coronary arteries of cells called monocytes that are necessary for the development of the atherosclerosis that causes the heart disease. This project is concerned with this ability of HDLs to slow down the development of atherosclerosis by the second action. We have found that this second action of HDLs is influenced by the type of fats they carry. We propose now to investigate the mechanism by which different fats influence this action of HDLs with a view to devising new strategies for the prevention of heart disease.Read moreRead less
Investigation Of The Role For GPVI In Platelet Function And Thrombosis
Funder
National Health and Medical Research Council
Funding Amount
$542,772.00
Summary
Blood cells play an important role in maintaining healthy blood vessels. We are studying the role of platelets in blood clots following vessel injury. However, while critical for normal blood vessel maintenance, these cells also contribute to diseases including thrombosis. We will examine how an important platelet receptor called GPVI promotes blood clot formation, and examine whether combining anticoagulant drugs with GPVI deficient platelets leads to a more effective anticlotting approach.
Role Of Adhesion Molecules In Autoimmune Vasculitis
Funder
National Health and Medical Research Council
Funding Amount
$377,036.00
Summary
Lupus is a disease which causes inflammation and pain throughout the body. The inflammation is caused by white blood cells attacking the lining of blood vessels in tissues. The aim of this project is to understand the reasons why these white blood cells attack the blood vessel lining. This process is impossible to study in humans. However, there is a strain of mouse which is affected by a disease which is very similar to human lupus. This disease occurs spontaneously in these mice. Using a micro ....Lupus is a disease which causes inflammation and pain throughout the body. The inflammation is caused by white blood cells attacking the lining of blood vessels in tissues. The aim of this project is to understand the reasons why these white blood cells attack the blood vessel lining. This process is impossible to study in humans. However, there is a strain of mouse which is affected by a disease which is very similar to human lupus. This disease occurs spontaneously in these mice. Using a microscope, it is possible to study the tiny blood vessels which are affected by this disease in these mice . Under the microscope, it is possible to see the white blood cells as they undergo the process of attacking the blood vessel lining. Visualizing this attack then allows us to study it and determine which molecules are important in causing this damaging inflammatory response. Specifically I will examine diseased blood vessels in the skin and brain of these mice, two of the tissues most dramatically affected by this disease. This information should help us gain an increased understanding of lupus as it affects humans.Read moreRead less