<qa>  What is the purpose of this study?The purpose of this study is to investigate the safety and initial efficacy of allogeneic adoptive immune therapy AAIT for advanced AIDS patients. 20 patients received i.v. transfusion one round 3 times of 2.0-3.010E8 cellskg of MNSs as the treated group. All of them received the conventional anti-opportunistic infection and ART treatment for AIDS. The side effects, symptom improvement, control of opportunistic infections and CD4 T cell numbers will be evaluated during the 48-week follow up. 