Kwang-Hyun Baek is a full professor of Department of Biomedical Science and a director of Cell and Gene Therapy Research Institute at CHA University in Korea. He received his Ph.D. from the department of Zoology and Genetics at Iowa State University in US in 1995 and worked as a postdoctoral research fellow in the division of Genetics at Brigham and Womens Hospital and in the department of Pediatric Oncology at Dana-Farber Cancer Institute, Harvard Medical School. He has been serving as an editorial board member of more than a dozen of international journals. Current research and clinical interests are in the molecular genetics of ubiquitination and deubiquitination systems relevant to various cancers. He first coined terms ubiquitomics and deubiquitomics in the field of the ubiquitin-proteasome system. In addition, he is also interested in genomics and proteomics during stem cell proliferation, differentiation, and reprogramming.