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자료유형
학술대회자료
저자정보
Park, Min-Sik (Department of Pharmacology, College of Pharmacy, Seoul National University) Lee, Woo-Jong (Department of Pharmacology, College of Pharmacy, Seoul National University) Kim, Young-Eun (Department of Pharmacology, College of Pharmacy, Seoul National University) Ko, Kwang-Ho (Department of Pharmacology, College of Pharmacy, Seoul National University)
저널정보
한국응용약물학회 한국응용약물학회 추계학술발표논문집 한국응용약물학회 2003년도 Annual Meeting of KSAP : International Symposium on Pharmaceutical and Biomedical Sciences on Obesity
발행연도
2003.1
수록면
84 - 84 (1page)

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Lead has long been considered as a toxic environmental pollutant, which severely damages central nervous system. Lead can cause hypo- and de-myelination, and glial cells are closely related with myelination or demyelination. Matrix metalloproteinases (MMPs) are proteolytic enzymes that are involved in the remodelling of the extracellular matrix in a variety of physiological and pathological processes. MMPs also seem to be important in the pathogenesis of inflammatory demyelinating diseases of the central and peripheral nervous system. In this study, we investigated whether lead affects MMP-9 expression in rat primary glial cells. Treatment of 0.1-5 ${\mu}$M lead dose- and time-dependently increased MMP-9 expression in rat primary glial cells. The activity of MMPs was determined using zymography. Lead activated Erk(1/2) but neither of the other endogenous MAP kinases, p38 or JNK. Inhibition of Erk(1/2) activation by PD98059, a MEK inihibitor, prevented lead-induced expression of MMP-9. The results of the present study suggest that lead intoxication may adversely affect brain function at least in part by inducing MMP-9 expression through Erk(1/2) activation in primary glial cells.

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