Evaluation of interactions between RAW264.7 macrophages and small molecules by capillary electrophoresis.

Autor: Wang FQ; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, P. R., China., Li QQ; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, P. R., China., Zhang Q; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, P. R., China., Wang YZ; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, P. R., China., Hu YJ; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R., China., Li P; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R., China., Wan JB; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, P. R., China., Yang FQ; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, P. R., China., Xia ZN; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, P. R., China.
Jazyk: angličtina
Zdroj: Electrophoresis [Electrophoresis] 2017 Mar; Vol. 38 (6), pp. 938-941. Date of Electronic Publication: 2017 Jan 13.
DOI: 10.1002/elps.201600345
Abstrakt: In this study, the affinity interactions between RAW 264.7 macrophages and three small molecules including naringin, oleuropein and paeoniflorin were evaluated by affinity capillary electrophoresis (ACE), partial filling affinity capillary electrophoresis (PFACE) and frontal analysis capillary electrophoresis (FACE), respectively. The result indicated that ACE (varying concentrations of cell suspension were filled in the capillary as receptor) may not be suitable for the evaluation of interactions between cell and small molecules due to the high viscosity of cell suspension; PFACE can qualitatively evaluate the interaction, but the difference in viscosity between RAW264.7 suspension and buffer effects on the liner relationship between filling length and injection time, which makes the calculation of binding constant difficult. Furthermore, based on the PFACE results, naringin showed stronger interaction with macrophages than the other two molecules; taking advantage of the aggregation phenomenon of cell induced by electric field, FACE was successfully used to determine the stoichiometry (n = 5×10 9 ) and binding constant (K b = 1×10 4 L/mol) of the interaction between RAW264.7 and naringin.
(© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
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