1. Institute of Molecular Medicine, College of Medicine, National Cheng-Kung University, Tainan City 704-56, Taiwan, ROC
2. Center of Infectious Disease and Signal Transduction, College of Medicine, National Cheng-Kung University, Tainan City 704-56, Taiwan, ROC
3. Department of Applied Biology, Graduated School of Science and technology, Shinshu University, Ueda, Japan
4. Present address: Department of Food Science and Technology, Faculty of Agricultural Technology, Udayana University, Bali, Indonesia.
5. Division of Gene Research, Department of Life Science, Research Center for Supports to Advanced Science, Shinshu University, Ueda, Japan