So it will take not one hero but many. Sharp — a Nobel Prize-winning molecular biologist who studies the genetic causes of cancer — is recruiting special-forces units to fight back. For the past four years, he has been wrangling dream teams funded by Stand Up to Cancer (SU2C), an organization started by entertainment-industry figures unhappy with the progress being made against America’s most deadly disease. Cancer still kills in large numbers: an estimated 580,350 people will die of the disease in the U.S. this year, according to the National Cancer Institute. Another 1.7 million cases will be diagnosed, and those figures will grow as the population ages.