Yesterday, Christina attended the launch of the “Stand Up To Cancer” campaign. Health Central has information about the event.

Celebrities from both the entertainment industry and Major League Baseball gathered Wednesday in Los Angeles to launch a nationwide initiative that will fund the brightest researchers to complete both basic and advanced cancer research.

Dennis Quaid, Melissa Etheridge, David and Rosanna Arquette, Christina Ricci, Elizabeth Berkley, Jimmy Smits, Goran Visnjic and other stars mingled in the lobby of the Paley Center for Media in Beverly Hills, looking at the demonstrations of the Stand Up to Cancer Web site and munching on breakfast before the press conference.

The initiative’s purpose is to raise funds to accelerate cancer research, and all three major television networks have agreed to donate a simultaneous hour of commercial-free primetime programming for a special at 8 p.m. on Sept. 5. Earlier in the day, anchors from all three networks — ABC, CBS and NBC — announced the initiative together during live appearances on each network’s morning show.

The campaigns official website is located at StandUp2Cancer.org, there you can learn more about the campaign, donate to the cause and get information on the upcoming show. You can view the photos (both MQ and HQ) by clicking on the thumbnails below.