Mesenchymal Stem Cells Treatment for AIDS Patients at Late Stage

Mesenchymal stem cell dose is 0.75-1.0×10\*6/kg and is transplanted by intravenous infusion. For the mesenchymal stem cell standard treatment group, the cells are used for three times(at week 0, 2,4 after recruitment) and the mesenchymal stem cell enhanced treatment group, the cells are used for six times(at week 0, 2,4,24,26,28 after recruitment).

saline is used as placebo in the placebo comparator group