Cynthia Nixon

Cynthia Nixon has joined forces with the breast cancer organization Susan G. Komen for the Cure and is going public with her own battle with breast cancer.

Nixon, who is reprising her role as Miranda in HBO's "Sex and the City" in an upcoming movie, had a lumpectomy two years ago and then underwent six and a half weeks of radiation. She also helped her mother battle breast cancer.

"As the daughter of a breast cancer survivor, knowing my personal risk made me more aware and more empowered when I faced my own diagnosis," the 42-year-old actress said in a statement. "I want to help Susan G. Komen for the Cure educate the 1.1 million women around the globe who face a diagnosis each year."

The Dallas-based Komen foundation is known for its Race for the Cure events.