Haylie Helms is a third year PhD candidate in the Knight Cancer Precision Biofabrication Hub at Oregon Health and Science University (OHSU). Under the mentorship of Dr. Luiz Bertassoni, she is developing methods to single-cell bioprint complex tissues that match the native cellular spatial arrangement. Her research is currently focused on recreating the ductal carcinoma in situ (DCIS) tumor microenvironment, with single cell spatial precision, to investigate cell-cell interactions driving disease progression to invasive breast cancer. By systematically manipulating the cellular composition and arrangement of the tumor microenvironment they hope to uncover the fundamental biology of tumor initiation and progression.