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Reversibility of Membrane N-Glycome of HeLa Cells upon Treatment with Epigenetic Inhibitors (CROSBI ID 190348)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Horvat, Tomislav ; Deželjin, Martina ; Redžić, Irma ; Barišić, Darko ; Herak Bosnar, Maja ; Lauc, Gordan ; Zoldoš, Vlatka Reversibility of Membrane N-Glycome of HeLa Cells upon Treatment with Epigenetic Inhibitors // PLoS One, 8 (2013), doi: 10.1371/journal.pone.0054672

Podaci o odgovornosti

Horvat, Tomislav ; Deželjin, Martina ; Redžić, Irma ; Barišić, Darko ; Herak Bosnar, Maja ; Lauc, Gordan ; Zoldoš, Vlatka

engleski

Reversibility of Membrane N-Glycome of HeLa Cells upon Treatment with Epigenetic Inhibitors

Glycans are essential regulators of protein function and are now in the focus of research in many physiological and pathophysiological processes. There are numerous modes of regulating their biosynthesis, including epigenetic mechanisms implicated in the expression of glyco- genes. Since N-glycans located at the cell membrane define intercellular communication as well as a cellular response to a given environment, we developed a method to preferentially analyze this fraction of glycans. The method is based on incorporation of living cells into polyacrylamide gels, partial denaturation of membrane proteins with 3 M urea and subsequent release of N-glycans with PNGase F followed by HPLC analysis. Using this newly developed method, we revealed multiple effects of epigenetic inhibitors Trichostatin A, sodium butyrate and zebularine on the composition of N- glycans in human cells. The induced changes were found to be reversible after inhibitor removal. Given that many epigenetic inhibitors are currently explored as a therapeutic strategy in treatment of cancer, wherein surface glycans play an important role, the presented work contributes to our understanding of their efficiency in altering the N-glycan profile of cancer cells in culture.

epigenetics ; cell membrane N-glycome ; zebularine ; trichostatin A ; HeLa cells ; HPLC analysis

Horvat Tomislav and Deželjin Martina contributed equally to this work.

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Podaci o izdanju

8

2013.

objavljeno

1932-6203

10.1371/journal.pone.0054672

Povezanost rada

Biologija

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