Cytokine production and adhesive protein expression by endothelial cells after contact with polyethylene terephthalate.

Cenni, E; Granchi, D; Ciapetti, G; Verri, E; Cavedagna, D; Gamberini, S; Di Leo, A; Pizzoferrato, A · Biomaterials · 1996

basic_science · Level V

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Abstract

The authors have evaluated adhesive protein expression and cytokine production by human umbilical vein endothelial cells cultured in contact with polyethylene terephthalate (PET). ELAM-1, ICAM-1 and VCAM-1 expression was determined by flow cytometry; the concentration of interleukin-1 alpha (IL-1 alpha), interleukin-6 (IL-6), granulocyte colony stimulating factor (G-CSF) and granulocyte-macrophage colony stimulating factor (GM-CSF) in the supernatant was determined by enzyme immunoassay. The contact with PET determined a significant increase in ELAM-1 expression and insignificant increase in cytokine production, demonstrating that PET had a limited capability to stimulate endothelial cells in a pro-inflammatory sense.

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