1. Department of Biochemistry, School of Medicine, Dongguk University, Kyungju 780-714, Korea
2. Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu 700-422, Korea
3. Department of Dermatology, University Medical Centre Mannheim, Ruprecht-Karls University of Heidelberg, Mannheim, Germany
4. Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russia