Proto-oncogene Bcl-6 belongs to the B-cell lymphoma family of genes as a factor suppressing apoptosis, which is widely involved in the processes of cell differentiation, activation, cell cycle regulation, etc. Differentially expressed in cell types, Bcl-6 is expressed at high levels only in germinal center (GC) B cells and lymphomas with a germinal center B (GC-B) cell phenotype. Here, BCL6 is linked to lymphoma.