Title : Modulation of P-glycoprotein expression and function by curcumin in multidrug-resistant human KB cells.

Pub. Date : 2002 Aug 15

PMID : 12167476






12 Functional Relationships(s)
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1 Modulation of P-glycoprotein expression and function by curcumin in multidrug-resistant human KB cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
2 In this study, curcumin was tested for its potential ability to modulate the expression and function of Pgp in the multidrug-resistant human cervical carcinoma cell line KB-V1. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
3 Western blot analysis and reverse transcription-polymerase chain reaction (RT-PCR) showed that treatment with 1, 5, and 10 microM curcumin for up to 72hr was able to significantly lower Pgp expression in KB-V1 cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
4 Curcumin (1-10 microM) decreased Pgp expression in a concentration-dependent manner and was also found to have the same effect on MDR1 mRNA levels. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
5 Curcumin (1-10 microM) decreased Pgp expression in a concentration-dependent manner and was also found to have the same effect on MDR1 mRNA levels. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
6 The effect of curcumin on Pgp function was demonstrated by rhodamine 123 (Rh123) accumulation and efflux in Pgp-expressing KB-V1 cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
7 The effect of curcumin on Pgp function was demonstrated by rhodamine 123 (Rh123) accumulation and efflux in Pgp-expressing KB-V1 cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
8 In addition, curcumin inhibited verapamil-stimulated ATPase activity and the photoaffinity labeling of Pgp with the prazosin analog [125I]iodoarylazidoprazosin in a concentration-dependent manner, demonstrating that curcumin interacts directly with the transporter. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
9 In addition, curcumin inhibited verapamil-stimulated ATPase activity and the photoaffinity labeling of Pgp with the prazosin analog [125I]iodoarylazidoprazosin in a concentration-dependent manner, demonstrating that curcumin interacts directly with the transporter. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
10 Thus, curcumin seems to be able to modulate the in vitro expression and function of Pgp in multidrug-resistant human KB-V1 cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
11 In summary, this study describes the duel modulation of MDR1 expression and Pgp function by the phytochemical curcumin, which may be an attractive new agent for the chemosensitization of cancer cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens
12 In summary, this study describes the duel modulation of MDR1 expression and Pgp function by the phytochemical curcumin, which may be an attractive new agent for the chemosensitization of cancer cells. Curcumin ATP binding cassette subfamily B member 1 Homo sapiens