Figure 3: Expression of LDHB and hnRNPF in fresh MCC tumor tissues and two primary human MCC cell lines.cDNAs were extracted from 16 fresh MCC tumors and 2 primary human MCC cell lines and qRT-PCR analysis of LDHB and hnRNPF mRNA expression was performed. cDNA from a fresh carcinoid tumor of the lung was used as a control. Triplicate runs of each sample were normalized to MRPS2 mRNA to determine relative expression (means ± SEM), (**P < 0.01, ***P< 0.001).