|
|
|
| Cellular growth under hydrostatic pressure using bovine aortic EC-SMC co-cultured ePTFE vascular graft |
| SUN Lei, NIWA Koichi, LIN Jian-zhong, KARINO Takeshi |
| Department of Mechanics, Zhejiang University, Hangzhou 310027, China; Research Institute for Electronic Science, Hokkaido University North 12, West 6, North District, Sapporo 060-0812, Japan |
|
|
|
Abstract High blood pressure (hypertension) is implicated in the development of atherosclerosis. Blood vessels are constantly subjected to stretch due to blood pressure and changes in stretch usually instigate adaptive vascular remodeling, including abnormal growth and proliferation of vascular smooth muscle cells (VSMCs) as well as extracellular matrix (ECM). In this experiment, we used bovine aortic endothelial cells and smooth muscle cells (EC-SMC) co-cultured ePTFE vascular grafts subjected to normal atmospheric pressure (as a control), and 100 mmHg hydrostatic pressure for 7 d. The increase of cell layer thickness was observed. When measured, the cell layer thickness increased by 116.2%. The increase of collagen (Type IV) synthesis was also observed in the immunohistochemistry assay. When stained with toluidine blue, the cells showed metachromatic phenomenon.
|
|
Received: 17 September 2004
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
