Dr. Steer accepted a Hepatology Fellowship at the NIH in the Section on Diseases of the Liver in 1976 and remained on staff at the NIH as an Expert in his field for an additional 10 years. During his time at the University, Dr. Steer has been active in mentorship of PhD students and post-doctoral fellows in his lab, is a member of multiple committees and has continued to be academically productive in his current area of research, which is regenerative medicine. Research Summary/Interests The Sleeping Beauty (SB) transposon system in non-viral gene therapy Ursodeoxycholic acid (UDCA), a hydrophilic bile acid, as an anti-apoptotic agent Role of microRNAs in gene regulation for different target organs and stem cell populations Basic and translational applications to human disease Regenerative medicine using gene editing (CRISPR) and blastocyst complementation