Kazemi-Lomedasht Fatemeh, Rami Abbas, Zarghami Nosratolla
Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. ; Pasteur Institute of Iran, Tehran, Iran.
Adv Pharm Bull. 2013;3(1):127-30. doi: 10.5681/apb.2013.021. Epub 2013 Feb 7.
Telomerase is expressed in most cancers, including breast cancer. Curcumin, a polyphenolic compound that obtained from the herb of Curcuma longa, has many anticancer effects. But, its effect is low due to poor water solubility. In order to improve its solubility and drug delivery, we have utilized a β-cyclodextrin-curcumin inclusion complex.
To evaluate cytotoxic effects of cyclodextrin-curcumin and free curcumin, MTT assay was done. Cells were treated with equal concentration of cyclodextrin-curcumin and free curcumin. Telomerase gene expression level in two groups was compared by Real-time PCR.
MTT assay demonstrated that β-cyclodextrin-curcumin enhanced curcumin delivery in T47D breast cancer cells. The level of telomerase gene expression in cells treated with cyclodextrin-curcumin was lower than that of cells treated with free curcumin (P=0.001).
RESULTS are suggesting that cyclodextrin-curcumin complex can be more effective than free curcumin in inhibition of telomerase expression.
端粒酶在包括乳腺癌在内的大多数癌症中均有表达。姜黄素是一种从姜黄属植物中提取的多酚类化合物,具有多种抗癌作用。但其水溶性差,导致其效果不佳。为了提高其溶解度和药物递送能力,我们使用了β-环糊精-姜黄素包合物。
为评估环糊精-姜黄素和游离姜黄素的细胞毒性作用,进行了MTT试验。用等浓度的环糊精-姜黄素和游离姜黄素处理细胞。通过实时PCR比较两组中端粒酶基因的表达水平。
MTT试验表明,β-环糊精-姜黄素增强了姜黄素在T47D乳腺癌细胞中的递送。用环糊精-姜黄素处理的细胞中端粒酶基因表达水平低于用游离姜黄素处理的细胞(P = 0.001)。
结果表明,环糊精-姜黄素复合物在抑制端粒酶表达方面可能比游离姜黄素更有效。