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Cholesterol and phosphatidylserine are engaged in adenoviral dodecahedron endocytosis

Jedynak, Marta and Worch, Remigiusz and Podsiadla-Bialoskorska, Małgorzata and Chroboczek, Jadwiga and Szolajska, Ewa (2018) Cholesterol and phosphatidylserine are engaged in adenoviral dodecahedron endocytosis. Biochimica et Biophysica Acta (BBA) - Biomembranes, 1860 (11). pp. 2215-2223. ISSN 00052736


Official URL: http://doi.org/10.1016/j.bbamem.2018.09.002


Adenoviral dodecahedron is a virus-like particle composed of twelve penton base proteins, derived from the capsid of human adenovirus type 3. Due to the high cell penetration capacity, it was used as a vector for protein, peptide and drug delivery. Two receptors are known to be involved in the endocytic dodecahedron uptake, namely αv integrins and heparan sulfate proteoglycans. Since it has been observed, that dodecahedron efficiently penetrates a wide range of cancer cells, it suggests that other cellular compounds may play a role in the particle endocytosis. To shed some light onto the interactions with membrane lipids and their potential role in dodecahedron entry, we performed a series of experiments including biochemical assays, fluorescence confocal imaging of giant unilamellar vesicles and surface plasmon resonance, which indicated specific preference of the particle to anionic phosphatidylserine. Experiments performed on cholesterol-depleted epithelial cells showed that cholesterol is essential in the endocytic uptake, however a direct interaction was not observed. We believe that the results will allow to better understand the role of lipids in dodecahedron entry and to design more specific dodecahedron-based vectors for drug delivery to cancer cells.

Item Type:Article
Subjects:Q Science > Q Science (General)
Divisions:Department of Protein Biosynthesis
ID Code:1609
Deposited By: M.Sc. Marta Jedynak
Deposited On:30 Jan 2019 13:39
Last Modified:29 Jul 2021 07:27

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