April 29, 2010
Curcumin Nanoparticles ‘Open Up’ Resistant Cancers
Pre-treatment with curcumin, a component of the spice turmeric, makes ovarian cancer cells more vulnerable to chemotherapy and radiotherapy. Researchers writing in BioMed Central's open access Journal of Ovarian Research found that delivering the curcumin via very small (less than 100nm) nanoparticles enhanced the sensitizing effect.
Subhash Chauhan, PhD, and Meena Jaggi, PhD, led a team of researchers from Sanford Research and the University of South Dakota, USA, who carried out the in vitro study. They said, "One strategy to improve the effectiveness and limit the toxicity of cancer therapy is to induce chemo/radio-sensitization in cancer cells using natural dietary phytochemicals like curcumin. However, curcumin is poorly absorbed by the body, which limits its effectiveness. We have developed a nanoparticle formulation, Nano-CUR, to provide increased bioavailability as well as targeted delivery of curcumin into tumors".
Curcumin induces chemo/radio-sensitization in ovarian cancer cells and curcumin nanoparticles inhibit ovarian cancer cell growth. Murali M Yallapu, Diane M Maher, Vasudha Sundram, Maria C Bell, Meena Jaggi and Subhash C Chauhan. Journal of Ovarian Research (in press)
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