Just one day after news surfaced that beloved TV actress Valerie Harper plans to appear on "Dancing with the Stars," word surfaced that her brain cancer is "close to remission."

The Los Angeles Times reports that Harper and her doctor broke the news this morning on NBC’s "Today" show. Harper, who played Rhoda Morgenstern on "The Mary Tyler Moore Show" and "Rhoda" in the 1970s, was diagnosed with terminal brain cancer in January, and has already outlived doctors’ expectations.

"The 74-year-old ‘Rhoda’ star, who went public with her diagnosis in March, has combined chemotherapy with Eastern options including acupuncture and Chinese tea," the Times reports. "Harper has the rare condition leptomeningeal carcinomatosis, which occurs when cancer spreads to the fluid-filled membranes that surround the brain. She previously beat lung cancer."

But the news isn’t all good. Her doctor is quoted as saying: "The problem is that any minute this can change. … [Patients] develop resistance to the therapy and it’s not a matter of if, it’s a matter of when."

The Times report adds: "Harper has maintained an upbeat public attitude since her cancer revelation, which she shared in detail at the time with People magazine. Now, she’s cooperated for ‘Valerie’s Story — A Meredith Vieira Special,’ set to air Sept. 19 on NBC. The cameras travel into Harper’s home and even accompany her to chemotherapy."

Here’s a video report from E! News: