New Scientist is running this article detailing a new research finding regarding cancer in mice. By controlling the expression of a certain kind of hormone, called "MYC" (pronounced "mick"), scientists were able to cause cancerous liver cells to revert to normal liver cells. Humans do not have the sort of hormone switch the scientists used in mice, so the therapy has no direct application. It does, however, indicate that research into MYC supression in humans could yield positive results.