PMID- 19062520 OWN - NLM STAT- MEDLINE DCOM- 20090115 LR - 20131121 IS - 0041-3771 (Print) IS - 0041-3771 (Linking) VI - 50 IP - 10 DP - 2008 TI - [Changes in matrix metalloproteinases activities in normal and transformed mouse fibroblasts under effect of antioxidants]. PG - 877-81 AB - The effect of two antioxidants on the activities of matrix metalloproteinases (MMP) secreted by normal (3T3) and transformed (3T3-SV40) mouse fibroblasts was examined. We compared the effect of N-acetylcystein (NAC) and alpha-lipoic acid (ALA) on two gelatinases, MMP-2 and MMP-9. Gel zymography demonstrated that activity of MMP-2 was higher in normal 3T3 cells, and MMP-9 activity was higher in transformed 3T3-SV40 cells. NAC action for 2-6 hours completely inhibited MMP-2 and MMP-9 activity in both cell lines. The inhibitory effect almost did not depend on NAC concentration at the range of 1-10 mM. ALA (1.2 mM) affected the cells not so dramatically. ALA decreased the MMP-2 activity in both cellular types. As to MMP-9 activity, it decreased in 3T3 cells and slightly increased in 3T3-SV40 cells in the presence of ALA. The activity of membrane bound and intracellular MMP was not changed under the same conditions. In conclusion, an altered activity of MMP in the presence of an antioxidant may influence the intracellular signalling and cell functions. FAU - Voronkina, I V AU - Voronkina IV FAU - Kirpichnikova, K M AU - Kirpichnikova KM FAU - Smagina, L V AU - Smagina LV FAU - Gamalii, I A AU - Gamalii IA LA - rus PT - Comparative Study PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Russia (Federation) TA - Tsitologiia JT - Tsitologiia JID - 0417363 RN - 0 (Antioxidants) RN - 0 (Enzyme Inhibitors) RN - 0 (Matrix Metalloproteinase Inhibitors) RN - 73Y7P0K73Y (Thioctic Acid) RN - EC 3.4.24.24 (Matrix Metalloproteinase 2) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) RN - WYQ7N0BPYC (Acetylcysteine) SB - IM MH - 3T3 Cells MH - Acetylcysteine/*pharmacology MH - Animals MH - Antioxidants/*pharmacology MH - Cell Line, Transformed MH - Cell Transformation, Viral/drug effects MH - Enzyme Inhibitors/*pharmacology MH - Fibroblasts/drug effects/enzymology MH - Matrix Metalloproteinase 2/metabolism MH - Matrix Metalloproteinase 9/metabolism MH - *Matrix Metalloproteinase Inhibitors MH - Mice MH - Thioctic Acid/*pharmacology EDAT- 2008/12/10 09:00 MHDA- 2009/01/16 09:00 CRDT- 2008/12/10 09:00 PHST- 2008/12/10 09:00 [pubmed] PHST- 2009/01/16 09:00 [medline] PHST- 2008/12/10 09:00 [entrez] PST - ppublish SO - Tsitologiia. 2008;50(10):877-81.