CM-DiI Labeled Mesenchymal stem cells homed to thymus inducing immune recovery of mice after haploidentical bone marrow transplantation

► MSCs homed to the thymus of mice after bone marrow transplantation. ► MSCs reduced thymus cells apoptosis. ► MSCs induced the CD4 and CD3 lymphocytes of recipient recovery. ► MSCs induce immune reconstitution by homing to the thymus after HSCT.