TIMP-1

Effect of TIMP1 transfection on PTEN expression in human kidney proximal tubular cells

J. X. Chen, Cai, G. Y., Chen, X. M., Liu, H., Chen, X., Peng, Y. M., Liu, F. Y., Li, Z., and Shi, S. Z., Effect of TIMP1 transfection on PTEN expression in human kidney proximal tubular cells, vol. 14, pp. 17373-17383, 2015.

To explore the role of metalloproteinase-1 (TIMP-1) tissue inhibitor in the mechanisms of kidney aging, we observed the effects of sense and antisense transfection of TIMP-1 and of metalloproteinase (MMP) inhibitors on phosphatase and tensin homolog (PTEN), vascular endothelial growth factor (VEGF), and Flk-1 expression in TIMP-1 transgenic human proximal tubular epithelial cells (HKCs). Transfected HKCs were co-incubated with 100 μM MMP-2 and MMP-9 inhibitor III for 24 h to affect enzyme inhibition.

Regulating effect of MMP-9 and TIMP-1 in pi­tuitary adenoma invasion

J. H. Mao, Guo, H., Si, N., Qiu, L., Guo, L. F., Sun, Z. S., Xiang, Y., Yang, X. H., Zhao, W. G., and Zhang, W. C., Regulating effect of MMP-9 and TIMP-1 in pi­tuitary adenoma invasion, vol. 14, pp. 17091-17098, 2015.

Pituitary adenomas can cause endocrine disorder and organ damage, with some aggressive ones leading to a high postoperative recurrence rate. The occurrence and development of these type of tumors is closely related with matrix metalloproteinases (MMPs) and endogenous specific tissue inhibitor of MMPs (TIMPs). In this study, the relationship between pituitary adenoma invasion and the changes in MMP-8 and TIMP-1 expressions is analyzed.

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