Lund University Diabetes Centre 1 article published in JoVE Medicine Longitudinal In Vivo Imaging and Quantification of Human Pancreatic Islet Grafting and Contributing Host Cells in the Anterior Eye Chamber Julia Nilsson1,2, Dan Holmberg1,2, Anja Schmidt-Christensen1,2 1Department of Experimental Medical Science, Lund University, 2Lund University Diabetes Centre The goal of this protocol is to continuously monitor the dynamics of the human pancreatic islet engraftment process and the contributing host versus donor cells. This is accomplished by transplanting human islets into the anterior chamber of the eye (ACE) of an NOD.(Cg)-Gt(ROSA)26Sortm4-Rag2-/-mouse recipient followed by repeated 2-photon imaging.