Journal: Scientific reports
Article Title: Melatonin suppresses PD-L1 expression and exerts antitumor activity in hepatocellular carcinoma.
doi: 10.1038/s41598-025-93486-4
Figure Lengend Snippet: Fig. 1. Effect of melatonin on the Huh7 cell. (A) Huh7 cells were treated with various concentrations of melatonin (Mel: 0, 0.5, 1, 2, 3, 4, 6 mM) for 24 and 48 h, and cell viability was measured with CCK8 assay. Data are expressed as a percentage of the control. Values are expressed as the mean ± standard deviation. (B , C) Colony formation of huh7 cells in the presence of melatonin (Mel: 0, 0.5, 1 mM) for 14 days. (D , E) Transwell migration assay. After incubating with melatonin (Mel: 0, 0.5, 1 mM) for 24 h, observe Huh7 cells under a microscope and count the migration rate. (F , G) Wound healing experiment: After treatment with melatonin (Mel: 0, 0.5, 1 mM) for 24 and 48 h, observe the degree of scratch closure and count the relative mobility. (H , I) Transwell invasion assay: After incubating with melatonin (Mel: 0, 0.5, 1 mM) for 24 h, observe the invasion of Huh7 cells under a microscope and calculate the relative invasion rate. (J) Western blot and quantitative analysis of the expression of Cleaved-Caspase-3, and BCL2 proteins after incubation with melatonin (Mel: 0, 0.5, 1 mM) for 24 h. (K) RT-qPCR was performed to detect the expression levels of BAX, BAD and BCL2 mRNA after incubation with melatonin (Mel: 0, 0.5, 1 mM) for 24 h. The images presented in figures were representative results of three independent experiments.
Article Snippet: Specific primary antibodies used were as follows: Antibody Source Identifier β-ACTIN Abclonal AC026 PD-L1 Abclonal A1645 P38 Abclonal A14401 P-P38 Cell signaling technology 4511 P-JNK Cell signaling technology 4668 JNK Cell signaling technology 9252 HIF-1α Cell signaling technology 14,179 Cleaved-Ccaspase-3 Proteintech 19677-1-AP BCL2 Biolight MA00081HuM10-C2F Fluorescent quantitative PCR detection technique (1) RNA Extraction: Cell samples were collected using Trizol reagent.
Techniques: CCK-8 Assay, Control, Standard Deviation, Transwell Migration Assay, Microscopy, Migration, Transwell Invasion Assay, Western Blot, Expressing, Incubation, Quantitative RT-PCR