Univariate Cox proportional hazards regression analysis was conducted to determine the prognostic value of the quantified mRNA expression; the results indicated that in MM patients, higher expression of CXCR4, MARCKS, POMP, PSMB5, TXN, and XBP1 was significantly correlated with shorter PFS (Table 4, Figure 3). This evidence concerns the gene CXCR4 and Miyoshi myopathy.