TNF and non-Hodgkin lymphoma: Other studies on lymphoma include: (1) the role of TP73 and FOXP3 in the pathogenesis of reactive lymphoid hyperplasia and diffuse B-cell lymphoma, as well as the contribution of HLA-G polymorphism to non-Hodgkin lymphoma in Egypt (398–400), (2) susceptibility of individuals with A/A genotype of TNF promoter (-308A/G) to non-Hodgkins lymphoma in Tunisia (401) and Egypt (402) and the identification of HLA-B*18, DRB1*03, DRB1*07, and DQB1*02 as lymphoma susceptibility loci in Algerian children (403).