Грецкая Наталья Михайловна

Кандидат химических наук


Научный сотрудник (Лаборатория оксилипинов)

Тел.: +7 (495) 330-65-92

Эл. почта: natalia.gretskaya@gmail.com

Избранные публикации

  1. Gholami S., Bordbar A.K., Akvan N., Parastar H., Fani N., Gretskaya N.M., Bezuglov V.V., Haertlé T. (2015). Binding assessment of two arachidonic-based synthetic derivatives of adrenalin with β-lactoglobulin: Molecular modeling and chemometrics approach. Biophys. Chem. 207, 97–106 [+]

    A computational approach to predict the main binding modes of two adrenalin derivatives, arachidonoyl adrenalin (AA-AD) and arachidonoyl noradrenalin (AA-NOR) with the β-lactoglubuline (BLG) as a nano-milk protein carrier is presented and assessed by comparison to the UV-Vis absorption spectroscopic data using chemometric analysis. Analysis of the spectral data matrices by using the multivariate curve resolution-alternating least squares (MCR-ALS) algorithm led to the pure concentration calculation and spectral profiles resolution of the chemical constituents and the apparent equilibrium constants computation. The negative values of entropy and enthalpy changes for both compound indicated the essential role of hydrogen bonding and van der Waals interactions as main driving forces in stabilizing protein-ligand complex. Computational studies predicted that both derivatives are situated in the calyx pose and remained in that pose during the whole time of simulation with no any significant protein structural changes which pointed that the BLG could be considered as a suitable carrier for these catecholamine compounds.

    ID:1485
  2. Akimov M.G., Gretskaya N.M., Zinchenko G.N., Bezuglov V.V. (2015). Cytotoxicity of Endogenous Lipids N-acyl Dopamines and their Possible Metabolic Derivatives for Human Cancer Cell Lines of Different Histological Origin. Anticancer Res. 35 (5), 2657–61 [+]

    Dopamine amides of long chain fatty acids are a family of endogenous mammalian lipids with an unknown function; they are anti-proliferative for the C6 glioblastoma cell line. To assess their possible anti-cancer activity we evaluated their cytotoxicity for a set of cancer cell lines.

    ID:1483
  3. Sachl R., Mikhalyov I., Gretskaya N., Olżyńska A., Hof M., Johansson L.B. (2011). Distribution of BODIPY-labelled phosphatidylethanolamines in lipid bilayers exhibiting different curvatures. Phys Chem Chem Phys 13 (24), 11694–701 [+]

    In this paper we have investigated the behaviour of newly synthesised mono-palmitoyl- and dipalmitoyl-phosphatidylethanolamine probes (abbreviated as mPE and dPE, respectively) labelled in the polar headgroup region by either the FL-BODIPY or the 564/570-BODIPY fluorophore and solubilised in lipid systems that exhibit different curvatures. Because of the bulky BODIPY-groups, the monoacyl-form derivatives have a conic-like shape, whereas that for the diacyl derivatives is rather cylindrical. A careful analysis of time-resolved resonance energy transfer experiments by means of analytical models as well as Monte Carlo simulations shows that the mPE derivatives have a comparable affinity to highly curved bilayer regions (torroidal pores formed by magainin-2 in lipid bilayers, or the rims of discoid bicelles) and to planar bilayer regions (i.e. the flat region of lipid bilayers and bicelles). Furthermore, the monoacyl-probes are as compared to the diacyl-probes effectively closer to each other in a lipid bilayer, while none of these probes seems to be randomly distributed. Self-aggregation is most efficiently induced by the larger aromatic 564/570-BODIPY chromophore, but it is suppressed when using the diacyl instead of the monoacyl-form, and/or by attaching BODIPY-groups to the acyl-chain.

    ID:672
  4. Mikhalyov I., Gretskaya N., Johansson L.B. (2009). Fluorescent BODIPY-labelled GM1 gangliosides designed for exploring lipid membrane properties and specific membrane-target interactions. Chem. Phys. Lipids 159 (1), 38–44 [+]

    New fluorophore-labelled G(M1) gangliosides have been synthesised and spectroscopically characterised. Spectroscopically different BODIPY groups were covalently linked, specifically to either the polar or the hydrophobic part of the ganglioside molecule. The absorption and fluorescence spectroscopic properties are reported for 564/571-BODIPY- and 581/591-BODIPY-labelled G(M1). Each of the different BODIPY groups is highly fluorescent and depolarisation experiments provide molecular information about the spatial distribution in lipid bilayers, as well as order and dynamics. From experiments performed on two spectroscopically different BODIPY:s, specific interactions can be revealed by monitoring the rate/efficiency of donor-acceptor electronic energy transfer. Systems of particular interest for applying these probes are e.g. mixtures of lipids, and peptides/proteins interacting with lipid membranes.

    ID:218
  5. Безуглов В.В., Грецкая Н.М., Клинов Д.В., Бобров М.Ю., Шибанова Е.Д., Акимов М.Г., Фомина-Агеева Е.В., Зинченко Г.Н., Баирамашвили Д.И., Мирошников А.И. (2009). Нанокомплексы рекомбинантных белков с полисиаловой кислотой. Получение, свойства и биологическая активность. Биоорг. хим. 35 (3), 350–356 ID:197