Who have any form of autoimmune disease (such as autoimmune colitis or Crohn's Disease) or immunodeficiency as evidenced by abnormal white blood count (WBC) count 8 and/or presence of opportunistic infections. Must have recovered immune competence after radiation therapy. (The experimental treatment being evaluated in this protocol depends on an intact immune system. Patients who have decreased immune competence may be less responsive to the experimental treatment and more susceptible to its toxicities.)