Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Russia.
Institute of Microelectronics Technology and High-Purity Materials, Russian Academy of Sciences, 142432 Chernogolovka, Russia.
Int J Mol Sci. 2024 Aug 1;25(15):8422. doi: 10.3390/ijms25158422.
The terpolymers of N-vinylpyrrolidone (VP) with acrylic acid and triethylene glycol methacrylate were synthesized with more than 90% yield by radical copolymerization in ethanol from monomeric mixtures of different molar composition (98:2:2, 95:5: 2 and 98:2:5) and their monomer composition, absolute molecular masses and hydrodynamic radii in aqueous media were determined. Using the MTT test, these terpolymers were established to be low toxic for non-tumor Vero cells and HeLa tumor cells. Polymer compositions of hydrophobic dye methyl pheophorbide a (MPP) based on studied terpolymers and linear polyvinylpyrrolidone (PVP) were obtained and characterized in water solution. Quantum-chemical modeling of the MPP-copolymer structures was conducted, and the possibility of hydrogen bond formation between terpolymer units and the MPP molecule was shown. Using fluorescence microscopy, the accumulation and distribution of polymer particles in non-tumor (FetMSC) and tumor (HeLa) cells was studied, and an increase in the accumulation of MPP with both types of particles was found.
N-乙烯基吡咯烷酮(VP)与丙烯酸和三乙二醇甲基丙烯酸酯的三元共聚物通过在乙醇中从不同摩尔组成的单体混合物(98:2:2、95:5:2 和 98:2:5)进行自由基共聚以超过 90%的产率合成,其单体组成、绝对分子量和水介质中的流体力学半径。使用 MTT 试验,这些三元共聚物被确定为对非肿瘤 Vero 细胞和 HeLa 肿瘤细胞低毒。以研究的三元共聚物和线性聚乙烯吡咯烷酮(PVP)为基础,得到了基于疏水染料甲氧基 pheophorbide a(MPP)的聚合物组成,并在水溶液中进行了表征。对 MPP-共聚物结构进行了量子化学建模,表明了共聚物单元与 MPP 分子之间形成氢键的可能性。通过荧光显微镜研究了聚合物颗粒在非肿瘤(FetMSC)和肿瘤(HeLa)细胞中的积累和分布,并发现两种类型的颗粒都增加了 MPP 的积累。