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Iron key to brain tumor drug delivery
Date:6/2/2011

vity to the chemotherapeutic agent. The researchers studied whether silencing ferritin would lower the effective dosage of BCNU, a chemotherapy drug used in brain tumor treatment and one of the few approved for brain cancer. While BCNU is effective, it has serious side effects limiting its use.

The use of siRNA reduces the amount of BCNU needed for tumor suppression by more than half in mice, according to the researchers, who published their findings in the journal Cancer Research.

"Our results further indicate that a nanoliposomal delivery mechanism can increase the efficacy of siRNA and optimize the amount of siRNA delivered," Connor said. "By silencing the ferritin gene, tumor sensitivity to chemotoxins was increased. The results from this project are a promising initial step toward the development of siRNA gene therapy involving ferritin for the treatment of multiple tumor types."


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Contact: Matthew Solovey
aem1@psu.edu
717-531-8606
Penn State
Source:Eurekalert

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