Thus, previously demonstrated calretinin downregulation [9] and septin 7 inhibition by FCF (this study) appear to have the strongest effect on inhibiting MM cell proliferation in cells with high expression levels of the respective proteins (high septin 7 in SPC212 cells, high calretinin and septin 7 in MSTO-211H cells) [9]. This evidence concerns the gene SEPTIN7 and Miyoshi myopathy.