Cancer cells are different from normal cells in many fundamental ways. Inventive scientists are using those differences to build a wide range of targeted cancer killers. EurekAlert! has the scoop one of the latest: "a molecule containing long, double-stranded RNA is attached to epidermal growth factor (EGF) and delivered selectively to cells with an abnormally high number of epidermal growth factor receptors (EGFR). ... The nucleic acid-EFG molecule [is] avidly gobbled up by the multiple EGF receptors on the cancer cells, without harming normal cells. ... Normal cells, which possess 20 to 100 less receptors for EGF, are spared, since the amount of double-stranded RNA gobbled up is insufficient to induce them to die. The lethal RNA approach has been applied to mice in which human brain tumors were grown. The tests proved 100% effective in eliminating the tumorous growths." Effective, low-cost cancer therapies are an essential component of future longevity medicine - the more progress the better!

Link: http://www.eurekalert.org/pub_releases/2006-10/thuo-kb102406.php