S-25 Chemical Biology as a New Trend in Pharmaceutical Science   S25-1. Development of Nucleic Acid Based Therapeutics Using 4’-Thionucleic Acids   S25-2. Chemical Biology of Gene Expression and Cell Differentiation   S25-3. Chemical Genetics from Post-Genomic Information   S25-4. Transcriptomic and Proteomic Expression Analyses for Advanced Structure & Activity Relationship Study and Biomarker Identification   S25-5. Chemical Pharmaceutics Oriented Medicinal Chemistry   S25-6. Chemical Biology of Nuclear Receptors