Ablation of the GDP-fucose transporter suppresses lung cancer cell proliferation and migration by reducing expression of PD-L1
Citations Over Time
Abstract
Fucosylation, an important post-translational modification, is closely related to the development of tumors. In the microenvironment of lung cancer, expression of PD-L1 and fucosylation is abnormally upregulated. However, the correlation between PD-L1 expression and its fucosylation in lung adenocarcinoma (LUAD) remains unclear. The GDP-fucose transporter (GFT) is a key molecule in cellular fucosylation. To explore the correlation between fucosylation and PD-L1 expression, we knocked out the GFT-encoding gene SLC35C1 in mouse Lewis lung adenocarcinoma cells and in human H1299 lung adenocarcinoma cells. Loss of SLC35C1 impaired the phosphorylation of EGFR and its downstream target ERK. Moreover, loss of SLC35C1 up-regulated the expression of β-TrCP, a PD-L1 E3 ligase, thereby promoting the ubiquitination of PD-L1 and its subsequent degradation. The down-regulated expression of PD-L1 leads to a decline in lung cancer cell proliferation and migration. These results suggest that fucosylation partially influences LUAD tumorigenesis by regulating PD-L1 expression.
Related Papers
- → Exogenous l ‐fucose protects the intestinal mucosal barrier depending on upregulation of FUT2‐mediated fucosylation of intestinal epithelial cells(2021)36 cited
- → Synthetic Fluorinated l-Fucose Analogs Inhibit Proliferation of Cancer Cells and Primary Endothelial Cells(2020)32 cited
- → Decreased fucose incorporation in cell surface carbohydrates is associated with inhibition of invasion(1989)16 cited
- → Elevated Porcine α-1,6 Fucose On GGTA1/CMAH Knockout Pigs Is a Target of Cytolytic Pre-Formed Human Antibodies.(2014)
- → Insights into fucose metabolism: SLC35C1-independent fucosylation discriminates against mannose-derived GDP-fucose(2021)