1. Immunobiology
and Cancer Program, Oklahoma Medical Research Foundation, 825 NE 13th
Street, Oklahoma City, Oklahoma 73104, United States
2. Natural
Product Research Center, Korea Institute of Science and Technology, 679 Saimdang-ro, Gangneung, Gangwon-do 210-340, Republic of Korea
3. Department
of Biological Chemistry, Korea University of Science and Technology (UST), Daejeon 305-333, Republic of Korea
4. Department
of Medicine, Division of Endocrinology, Department of Physiology,
Harold Hamm Diabetes Center, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States
5. Department
of Physiology, The University of Oklahoma Health Science Center, 941 Stanton L. Young Boulevard, Oklahoma City, Oklahoma 73104, United States