A thesis in the Faculty of Science at the University of Kirkuk discussed a molecular and immunological study of the CD47 gene in different types of cancer. The aim of the student, Athraa Ismail Rabi, was to reveal the role of CD47 and other immune genes related to it such as CD80 and CD86 in different types of cancers. The study concluded that the highest gene expression of CD47 was in solid tumors such as ovarian cancer, cervix, brain, skin, colon cancer and the lowest gene expression was in breast cancer. In blood tumors, CD47 was higher in lymphoma and appeared the highest expression of gene (CD80, CD86) in solid tumors in brain cancer and less expression in acute lymphoblastic leukemia.