"Beverly Hills, 90210" cast members are paying tribute to ailing co-star Shannen Doherty.
Doherty is being treated for breast cancer and didn't take part in a "90210" reunion panel at the Rewind Convention in Chicago over the weekend.
Luke Perry, whose character had an on-screen romance with Doherty's, told the audience Saturday that Doherty was "a very big part of the success of the show." He added that Doherty is "not doing well right now but sometimes her contributions are minimized."
Fellow cast mate Jennie Garth praised Doherty on Instagram by sharing a picture Saturday with a quote, "Fight Like A Brenda," a reference to Doherty's "90210" character, Brenda Walsh. Garth calls Doherty the "strongest lady I've ever known."
to my soul sister @theshando strongest lady i've ever known. then and now. i used to be threatened by your spirit, now i'm in awe of it. you've taught me a lot about speaking my mind and not being afraid of my power. i'm so grateful that young me got to be friends with you. but especially "old" me! the best is yet to come on this crazy journey!! love you! #fightlikeagirl #fightlikebrenda #aries