Abstract
Cell membrane chromatography (CMC) is a useful method for the simultaneous isolation and identification of active compounds from natural products. However, it suffers from high cell membrane consumption and is time-consuming to operate. In this study, CMC was performed for the first time with a silica capillary, termed cell membrane capillary chromatography (CMCC). Pancreatic islet cell membranes from a mouse were immobilized onto the capillary inner wall functionalized with aldehyde groups. Scanning electron microscopy observation of the prepared column showed that the cell membrane was evenly coated onto the capillary inner wall. Three model analytes with the pharmacological property of hypoglycemic activity including glibenclamide, glipizide and berberine were tested. They were all retained by the prepared column. Furthermore, the retention factors of the analytes in CMCC correlated well with their pharmacological action. The analytical procedure including washing (to obtain a flat baseline), injection and separation was accomplished within 10 min. The CMCC column was also used for screening active compounds from a natural plant (Coptis chinensis). The hypoglycemia activity of active components such as berberine was verified using the method. The results indicated that CMCC is a viable alternative method for screening active compounds from natural products.
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Acknowledgments
This work was supported by grants from Tianjin Research Program of Applied Basic and Cutting-edge Technologies (11JCZDJC20900), Postdoctoral Foundation of China (2012M510759), and New Teachers’ Fund for Doctor Stations from Ministry of Education, China (201012021200033).
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Tang, C., Liu, ZS., Qin, N. et al. Novel Cell Membrane Capillary Chromatography for Screening Active Compounds from Natural Products. Chromatographia 76, 697–701 (2013). https://doi.org/10.1007/s10337-013-2462-2
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DOI: https://doi.org/10.1007/s10337-013-2462-2