PMID- 14676438 OWN - NLM STAT- MEDLINE DCOM- 20040805 LR - 20220311 IS - 1011-8934 (Print) IS - 1598-6357 (Electronic) IS - 1011-8934 (Linking) VI - 18 IP - 6 DP - 2003 Dec TI - Lung matrix metalloproteinase-9 correlates with cigarette smoking and obstruction of airflow. PG - 821-7 AB - Cigarette smoking is the most important risk factor for obstruction of airflow in chronic obstructive pulmonary disease (COPD). Matrix metalloproteinases (MMPs) or an imbalance between MMPs and their inhibitors, the tissue inhibitors of MMP (TIMPs), is considered to play a role in the pathogenesis of COPD. We investigated whether the MMPs expression or the imbalance between MMPs and TIMP-1 is associated with the amount of cigarette smoking and the FEV1 value, in the lung parenchyma of 26 subjects (6 non-smokers and 20 cigarette smokers). First, we performed zymographic analysis to identify the profile of the MMPs, which revealed gelatinolytic bands mainly equivalent to MMP-9 in the smokers. We then measured, using enzyme immunoassay, the concentrations of MMP-9 and its inhibitor, TIMP-1. Correlation analysis revealed that both the MMP-9 concentrations and the molar ratios of MMP-9 to TIMP-1 (MMP-9/TIMP-1) were correlated with the amount of cigarette smoking. Furthermore, MMP-9 concentrations were inversely correlated with FEV1. In conclusion, this study shows that MMP-9 expression in human lung parenchyma is associated with cigarette smoking and also with the obstruction of airflow, suggesting that MMP-9 may play a role in the pathogenesis of the cigarette smoke-induced obstruction of airflow known as the characteristic of COPD. FAU - Kang, Min Jong AU - Kang MJ AD - Department of Internal Medicine, Hallym University Sacred Heart Hospital, College of Medicine, Hallym University, Anyang, Korea. FAU - Oh, Yeon-Mok AU - Oh YM FAU - Lee, Jae Cheol AU - Lee JC FAU - Kim, Dong Gyu AU - Kim DG FAU - Park, Myung Jae AU - Park MJ FAU - Lee, Myung Goo AU - Lee MG FAU - Hyun, In Gyu AU - Hyun IG FAU - Han, Sung Koo AU - Han SK FAU - Shim, Young-Soo AU - Shim YS FAU - Jung, Ki-Suck AU - Jung KS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Korea (South) TA - J Korean Med Sci JT - Journal of Korean medical science JID - 8703518 RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) SB - IM MH - Adult MH - Aged MH - Female MH - Forced Expiratory Volume MH - Humans MH - Lung/*enzymology MH - Male MH - Matrix Metalloproteinase 9/*metabolism MH - Middle Aged MH - Pulmonary Disease, Chronic Obstructive/*etiology MH - *Pulmonary Ventilation MH - *Smoking MH - Statistics as Topic MH - Tissue Inhibitor of Metalloproteinase-1/metabolism PMC - PMC3055149 EDAT- 2003/12/17 05:00 MHDA- 2004/08/06 05:00 PMCR- 2003/12/01 CRDT- 2003/12/17 05:00 PHST- 2003/12/17 05:00 [pubmed] PHST- 2004/08/06 05:00 [medline] PHST- 2003/12/17 05:00 [entrez] PHST- 2003/12/01 00:00 [pmc-release] AID - 200312821 [pii] AID - 10.3346/jkms.2003.18.6.821 [doi] PST - ppublish SO - J Korean Med Sci. 2003 Dec;18(6):821-7. doi: 10.3346/jkms.2003.18.6.821.