TIMP-2 gene transfer locally in atherosclerotic plaque could inhibit the activities of MMP-2 and MMP-9 in the lesion, increase the thickness of fibrous cap and the amount of collagen of the lesion, but may have no effect on the degree of the stenosis.

• 动脉粥样硬化局部转移TIMP2基因可明显抑制病变局部MMP2和MMP9活性,增加动脉粥样硬化斑块纤维帽厚度和病变局部胶原含量,但对动脉粥样硬化所致血管腔狭窄程度无明显影响。