IGF2BP1 and Miyoshi myopathy: In MM patients with 1q+ or t(4;14) (Fig. 1B), those with a higher IGF2BP1 mRNA expression level were found to have a worse prognosis in terms of overall survival as compared with the patients with a lower IGF2BP1 mRNA level (1q21+: P = 0.038, t(4;14)+: P = 0.022).