Submitted by Cornelia Kroeger and Christine Chaffer and Jeff Wyckoff
"We know now that tumors are not comprised of one type of cancer cell, rather, cancers are made of multiple types of cancer cells with different biological properties. This image represents a tumor comprised of aggressive and non-aggressive cancer cell populations. The green cells represent the aggressive cancer cells that surround the tumor mass. The less aggressive red cells are contained within. We took this image to understand how aggressive and non-aggressive cancer cells interact with each other within a tumor. This is important for developing more effective and targeted therapies for cancer patients."