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Overexpressed N-fucosylation on the Cell Surface Driven by FUT3, 5, and 6 Promotes Cell Motilities in Metastatic Pancreatic Cancer Cell Lines

Overview
Publisher Elsevier
Specialty Biochemistry
Date 2019 Feb 28
PMID 30808544
Citations 8
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Abstract

Pancreatic cancer is a highly malignant tumor of the digestive system. Previous studies have shown that abnormal cell surface glycosylation is associated with cancer metastasis, which suggests that glycosylation changes may open a new window for discovering metastasis-related pathways. In this study, we used a microarray with 55 lectins to screen for altered glycosylation between two metastatic pancreatic cancer lines (Capan-1 and Su.86.86) and two nonmetastatic pancreatic cancer lines (Panc-1 and MIA PaCa-2), and we further analyzed three lectins with high-binding activities (AAL, UEA-I, and PHA-E) in cell motility assays using these pancreatic cancer cells to detect whether blocking certain forms of cell surface glycosylation affects any processes associated with metastasis. As a result, we found that AAL, a fucose-specific lectin, has different binding patterns between metastatic pancreatic cancer and nonmetastatic pancreatic cancer lines and inhibits cell motility in metastatic pancreatic cancer cells. Furthermore, the N-fucosylation-related genes FUT3, 5, and 6 were found to be responsible for the elevated fucosylation in metastatic pancreatic cells through real-time PCR screening. In summary, our findings that the specific bindings of AAL on cell surfaces and highly expressed FUT3, 5, and 6 in metastatic pancreatic cancer cells, although preliminary, are encouraging, and our established combined method is also suitable for discovering metastasis-related mechanisms in other cancers.

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