AAAS MEETING:
10-Gallon Molecule Stomps Tumors
Amy Adams
A newly created, larger version of a pigment called porphyrin that ferries iron and other metals in the blood is showing promise as a means of ferrying cancer drugs into tumor cells. In pilot trials, the new molecule, called texaphyrin, has shown promise in enhancing the effects of radiation on inoperable brain tumors, and the National Cancer Institute has now added it to its list of the most promising therapies.