By screening a panel of MM cell lines in vitro, Harlin and colleagues found that the majority secreted only a restricted set of chemokines in vitro including predominantly CXCL8/IL-8 and CXCL1/Gro-α [11], which are in line with studies by us and others [3,11,68,69,70,71]. Here, CXCL8 is linked to Miyoshi myopathy.