Title:A Motif in Metallopeptidase Inhibitor Decreases Effectively the Activity of
Macrophage Metalloproteinases
Volume: 19
Issue: 3
Author(s): Golnaz Esfandiari, Ghasem Ghasempour, Naser Kakavandi, Ali Akbar Soleimani, Borhan Rahimi Abkenar, Elham Bahraini, Mohammad Najafi*Mohsen Khosravi
Affiliation:
- Biochemistry Department, Iran University of Medical Sciences, Tehran, Iran
- Microbial Biotechnology Research Center, Biochemistry Department, Iran
University of Medical Sciences, Tehran, Iran
Keywords:
MMP-2, MMP-9, macrophage, TIMP, prediction, motif.
Abstract:
Objective: The tissue remodeling process and cellular migration relate to the activities of
Matrix Metalloproteinases (MMPs). The aim of this study was to investigate the effects of a predicted
motif from TIMPs on the MMP-2 and MMP-9 activities secreted from the differentiated macrophages.
Materials and Methods: The monocytes were isolated from the healthy individuals by RosetteSep
kit and were differentiated into macrophages using M-CSF. A 4-amino acid motif (TCAP) was predicted
using bioinformatics tools. Zymography technique was applied for the measurement of MMP
activities. The docking studies were also investigated between MMPs, tetrapeptide, and Batimastat.
Results: The TCAP inhibited significantly the differentiated macrophage MMP-2 and MMP-9 activities
(p=0.0001and p=0.01, respectively). The docking results suggested that some MMP amino acids
are involved with both tetrapeptide (TCAP) and Batimastat,
Conclusion: The data showed that the small motif (TCAP) of TIMPs inhibits effectively the MMP-
2 activity.