Jack Nicholson has been serving up a steady stream of cheer for cancer patients at the Cedars-Sinai Los Angeles hospital.

The Hollywood icon and Oscar winner has been visiting terminal patients and cheering them up with jokes, card games, and behind-the-scenes stories about his career.

Nicholson's next career move comes in the form of a movie called The Bucket List. He plays a dying man in the film and began spending time at the hospital to research his role. But once his film finished, Nicholson kept visiting. He was that touched and moved by the patients.

Hospital staff say the actor's visits do wonders for the patient spirits. The only down side is for Nicholson who finds it hard to leave, knowing he may have seen some of his new friends for the last time.

A study appearing in the Journal of Clinical Oncology reveals there may be something out there that can extend the lives of patients with recurrent prostate cancer.

This something is a new class of anti-cancer targeted drugs that scientists at Cedars-Sinai Medical Center in Los Angeles say are quite promising, despite their ineffectiveness in some prostate cancer patients with no previous chemotherapy treatment.

Pertuzumab, a molecular targeted compound that has been used successfully in ovarian cancer patients, has been shown to block the human epidermal growth factor receptor family by binding to and inhibiting the function of HER2 receptors. They essentially block a key pathway that leads to cancer growth. And this blockage can possibly offer a better, longer life for recurrent prostate cancer patients whose diseases no longer respond to traditional chemotherapy.

Pertuzumab, marketed under the brand name Omnitarg by Roche and Genentech, is just one of many targeted cancer therapies that give researchers hope that cancer may one day be a lifetime disease that can be skillfully managed.