Furthermore, mRNA expression analysis of A20 and 7 NF-κB target genes (BCL2, Cyclin D1, CCR7, CD44, CXCR2, cFlip, IRF4) [29] of MM cases with (n = 6) and without (n = 14) monoallelic A20 deletions and of non-neoplastic bone marrow biopsies (BM; n = 6) was performed. Here, CXCR2 is linked to Miyoshi myopathy.