Journal: Signal Transduction and Targeted Therapy
Article Title: Semaphorin 3C (Sema3C) reshapes stromal microenvironment to promote hepatocellular carcinoma progression
doi: 10.1038/s41392-024-01887-0
Figure Lengend Snippet: IL-6 and cholesterol biosynthesis are responsible for Sema3C-mediated HSCs activation. a The volcano map showed the differentially expressed genes of LX-2 cells treated with rhSema3C or PBS in vitro. HSCs were treated with rhSema3C or supernatants of MHCC-97L cells with different Sema3C expression levels. mRNA levels of IL6 and IL8 were detected using qRT-PCR ( b ). ELISA was used to examine the IL6 secretion level ( c ). d GSEA identified an enrichment of genes involved in the NF-κB pathway in rhSema3C-treated LX-2 cells. e Western blotting showed phosphorylated and total p65 protein expression levels in LX-2 cells treated with rhSema3C. LX-2 cells were pre-treated with Bay 11-7082 and subsequently stimulated with rhSema3C, the levels of phosphorylated p65, total p65, and α-SMA expression were determined by western blotting ( f ), and IL6 secretion levels were examined by ELISA assay ( g ). h LX-2 cells were treated with OE-Sema3C-Hep3B cell-derived supernatants, Co-IP assay was used to detect the interaction between ITGB1 and NRP1. LX-2 cells were transfected with siNRP1 and subsequently stimulated with rhSema3C, IL6 secretion levels were detected by ELISA ( i ). The phosphorylated p65, total p65, α-SMA, and HMGCR expression levels were determined by using western blotting ( j ). k LX-2 cells were treated with a dosage of rhSema3C or supernatants of Sema3C-overexpressed HCC cells, and ITGB1 protein expression was determined by western blotting. LX-2 cells were transfected with siITGB1 and subsequently stimulated with rhSema3C, and the IL6 secretion levels were detected by ELISA assay ( l ), the phosphorylated p65, total p65, and α-SMA expression levels were determined by using Western blotting ( m ). LX-2 cells were treated with siNRP1, siITGB1 or rhSema3C as indicated, the secretion of TGF-β1 in each group was detected by ELISA ( n ), the chemotherapy resistance of LX-2 cells was evaluated by MTT assay ( o ), and migration and invasion were performed by Transwell assay, scale bar, 200 μm ( p ). rhSema3C recombinant human Sema3C; Data are presented as means ± SD. ns not significantly; *P < 0.05, **P < 0.01, and ***P < 0.001
Article Snippet: Liver cancer cell line Hep3B were purchased from Procell (Wuhan, China), liver cancer cell lines (Huh7, MHCC-97L, HepG2 and SMMC7721) and the human HSC line LX-2 were purchased from Immocell (Xiamen, China), Human hepatocytes MIHA cell line was obtained from Fenghui (Hunan, China), all liver cancer cell lines and LX-2 were cultured in DMEM (Gibco, United States) supplemented with 10% fetal bovine serum (FBS, Invitrogen, United States), MIHA cells were culture in RPMI 1640 (Gibco, United States) containing 10% FBS and 1% penicillin-streptomycin.
Techniques: Activation Assay, In Vitro, Expressing, Quantitative RT-PCR, Enzyme-linked Immunosorbent Assay, Western Blot, Derivative Assay, Co-Immunoprecipitation Assay, Transfection, MTT Assay, Migration, Transwell Assay, Recombinant