John Colgan is an Associate Professor in the Immunology Division. He received his Ph.D. from Columbia University in 1994, and performed his postdoctoral studies at Columbia University College of Physicians and Surgeons. Following his postdoctoral training, worked as an Associate Research Scientist at Columbia University College of Physicians and Surgeons before joining the faculty at the University of Iowa in 2005 as an Assistant Professor and was promoted to Associate Professor in 2012. Dr. Colgan’s broad research interest is to understand the transcriptional mechanisms that control lymphocyte development and function. Additionally, he is interested in how surface receptors expressed by T cells act to tune their function. Currently, Dr. Colgan is investigating the role of the nuclear protein GON4L in controlling B and T cell development and also the importance of GON4L for the growth and survival of leukemias that arise from B and T cell precursors. Dr. Colgan’s lab is also characterizing the role of a surface receptor called Tim-3 in the regulation of T cell responses to acute microbial infections.