Valerie Bertinelli plans to run the Boston Marathon to raise money for cancer research.

The actress says she recently shed 40 pounds. She says running the famed Boston race will give her a chance to test her endurance.

Bertinelli starred in the TV sitcom "One Day at a Time" three decades ago and, later, the drama "Touched by an Angel." She plans to join more than 500 runners who hope to raise nearly $4.5 million for research at the Dana-Farber Cancer Institute. Her personal trainer also plans to run.

The 114th Boston Marathon is set for April 19, four days shy of Bertinelli's 50th birthday.