Dr. Simon C. Robson is a Professor in Medicine at the Harvard Medical School and physician scientist in the Liver Center, Gastroenterology at the Beth Israel Deaconess Medical Center, in Boston. His area of basic science research involves the CD39 related ectonucleotidases: vascular and immune cell expressed ectoenzymes that hydrolyze extracellular nucleotides to adenosine and derivatives. CD39 family members are crucial in modulating vascular inflammation and immune responses in transplanted organs, as well as in the cardiovascular system. His laboratory has pioneered this area of biology and have an interest in the vascular manifestations of ischemia reperfusion injury and transplant rejection.