Mohamed Oukka mainly focuses on IL-2 receptor, Interleukin 21, Antigen-presenting cell, Cell biology and Immunology. His studies deal with areas such as Natural killer T cell and CD40 as well as Antigen-presenting cell. His Cell biology research is multidisciplinary, incorporating perspectives in Spleen, Mononuclear phagocyte system and Bone marrow.

His studies in FOXP3, Inflammation and Autoimmunity are all subfields of Immunology research. His work carried out in the field of FOXP3 brings together such families of science as Experimental autoimmune encephalomyelitis, Cellular differentiation, Retinoic acid and Antigen. His biological study spans a wide range of topics, including Molecular biology and Interleukin 12.