He obtained his PhD degree from the Department of Microbiology of Kyungpook National University, South Korea in 2000. He had a Post-doctoral Training at Louisiana State University Health Sciences Center, Stanley S Scott Cancer Center. After relocation to Korea in 2005, he worked on mechanisms of novel TRAIL sensitizers, and role of c-FLIP in apoptotic pathways. Currently, he studies on the molecular mechanisms underlying regulating apoptosis-related genes by miRNA in cancer and human umbilical vein endothelial cells (HUVECs).