MALAT1 knockdown decreased lipogenesis in HCC cells.A, glucose uptake in HCCLM3 (left panel) and PLC (right panel) cells treated with siMALAT1. Data represent mean ± s.d. of triplicate independent experiments (∗p < 0.05, ∗∗p < 0.01, by two-sided Student’s t test). B, the concentration of unsaturated fatty acids extracted from HCCLM3 (left panel) and PLC (right panel) cells treated with siMALAT1s. Data represent mean ± s.d. of triplicate independent experiments (∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, by two-sided Student’s t test). C, the concentration of TG extracted from HCCLM3 (left panel) and PLC (right panel) cells treated with siMALAT1. Data represent mean ± s.d. of triplicate independent experiments (∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, by two-sided Student’s t test). D, targeted LC-MS/MS analysis of lipids with altered abundance between siNC and siMALAT1 treated HCCLM3 cells. Data represent mean ± s.d. of five biological replicates (∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, by two-sided Student’s t test). E, representative cell membrane images of HCCLM3 cells at the indicated time points after photobleaching. Fluorescence intensities of the photobleached areas at indicated time points were shown on the right.