[Synthesis and characteristics of new fluorescent probes based on cardiolipin].

New fluorescent lipid probes, cardiolipin derivatives AV12-CL and B7-CL, bearing the residues of 12-(9-anthryl)-11E-dodecenoic and 7-(4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacen-8-yl)heptanoic acid, respectively, have been synthesized by acylation of 1-lysocardiolipin, which had been obtained from bovine heart cardiolipin by enzymatic hydrolysis with bacterial lipase. The resulting probes are intended for the study of protein-anionic phospholipid interactions.

[Depth-dependent investigation of the apolar zone of lipid membranes using a series of fluorescent probes, Me4-BODIPY-8-labeled phosphatidylcholines].

A series of lipid probes, phosphatidylcholines labeled with Me4-BODIPY-8 (4,4-difluoro-1,3,5,7- tetramethyl-4-bora-3a,4a-diaza-s-indacen-8-yl) fluorophore attached to the end of an acyl residue at different distances from the polar head, were used as depth-dependent probes for the apolar zone of model membrane systems, large unilamellar vesicles (LUVs). Data on the anisotropy of probe fluorescence demonstrated different mobility profiles for the fluorophore microenvironment in LUVs of different composition at various temperatures, which indicates a high sensitivity of these probes as tools for studying membrane systems. An interesting anomaly was observed for LUVs from dimiristoylphosphatidylcholine (DMPC) or from a DMPC-cholesterol mixture: the anisotropy of the fluorophore located near the bilayer center is larger than that of the fluorophore located further from the center; i.

[Synthesis and properties of fluorescently-labelled triglyceride, derivative of the antineoplastic agent sarcolysin].

A new fluorescent probe, a 3-perylenoyl derivative of the lipophilized antitumor drug merphalan (sarcolysine), was synthesized. The probe is suitable for studying intracellular traffic and metabolism of merphalan and its derivatives. The perylenoyl fluorescence is partially quenched by the merphalan chromophore, which broadens the probe potentialities.

[New phospholipids--inhibitors of human immunodeficiency virus reproduction. Synthesis and antiviral activity].

Several novel phosphatidic acid derivatives of 3'-azido-3'-deoxythymidine and 2',3'-dideoxyinosine were synthesized, which contained dialkylphosphatidyl, dialkylthiophosphatidyl moieties, as well as diacylphosphatidyl moiety with either 14,14,14-trifluoro-12-oxatetradecanoyl or natural acyl residues inherent in egg yolk phosphatidylcholine. Diacylphosphatidyl derivatives of glycyrrhetinic acid were also prepared. All the synthesized compounds exhibited significant anti-HIV activity.