4.7 Article

Cellular delivery and enhanced anticancer activity of berberine complexed with a cationic derivative of γ-cyclodextrin

Journal

BIOORGANIC & MEDICINAL CHEMISTRY
Volume 27, Issue 7, Pages 1414-1420

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2019.02.042

Keywords

gamma-Cyclodextrin; Propylenediamine; Berberine; Delivery; Mucoadhesivity; alpha-Amylase; Murine melanoma; Murine mammary gland cancer 4T1 cells; Normal murine mammary gland NMuMG cells

Funding

  1. Polish National Science Centre [UMO-2013/09/D/ST5/03864]

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A cationic derivative of gamma-cyclodextrin (GCD) modified with propylenediamine (PDA) was synthesized. It was shown that the derivative (GCD-PDA) is mucoadhesive and resistant to the digestion with gamma-amylase indicating that it may constitute an efficient oral delivery vehicle. GCD-PDA formed an inclusion complex with berberine (BBR), an alkaloid displaying a multitude of beneficial physiological effects. The complexed BBR penetrates a lipid membrane easier than the free one. Both uncomplexed BBR and that complexed with GCD-PDA was delivered to normal (NMuMG) and cancerous (4T1) murine mammary gland cells. In the normal cells both free and complexed BBR was homogeneously dispersed in the cytoplasm and was nontoxic up to 131 mu M. In the cancerous cells uncomplexed BBR was also homogeneously dispersed but it was toxic to about 25% of cells at 131 mu M, while the GCD-PDA/BBR complex was preferably localized in lysosomes and its toxicity doubled at this concentration compared to that of free BBR. Moreover, free BBR and GCD-PDA/BBR showed even more efficient inhibitory effect against murine melanoma (B16-F10) cells than against 4T1 cells.

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