Suicide-Gene-Transduced Donor T-Cells for Controlled Graft-versus-Host Disease and Graft-Versus-Tumor

Progress in hematology

DOI: 10.1007/BF02982688

Cite this article as:
Ciceri, F. & Bordignon, C. Int J Hematol (2002) 76: 305. doi:10.1007/BF02982688


In allogeneic hematopoietic cell transplantation, donor lymphocytes play a central therapeutic role in both graft-versus-leukemia and immune reconstitution. However, their use is limited by the risk of severe graft-versus-host disease (GVHD). Different strategies have been investigated to obtain all the benefits derived from donor lymphocytes while avoiding the risk of GVHD. Infusions of donor lymphocytes transduced with the herpes simplex virus thymidine kinase (HSV-tk) suicide gene resulted in anti-tumor activity in a substantial number of patients.Acute GVHD could be effectively controlled by ganciclovir-induced elimination of the transduced cells. Haplo-identical stem cell transplantation (haplo-SCT) is a promising therapeutic option for patients with high-risk hematologic malignancies lacking an HLA-matched donor. However, the intensive T-cell depletion required to overcome the risk of lethal GVHD has been associated with a delayed immune recovery with a prolonged risk of posttransplantation viral, fungal, and other opportunistic infections. Donor lymphocyte infusions of HSV-tk represent a promising tool for preventing disease relapse and promoting immune reconstitution after haplo-SCT, and a unique tool for the control of GVHD. The genetic manipulation of donor lymphocytes with a suicide gene is a promising strategy to increase feasibility and safety of allogeneic bone marrow transplantation. Int J Hematol. 2002;76:305-309.

Key words

Hematopoietic cell transplantation Gene therapy Suicide gene Graft-versus-tumor 

Copyright information

© The Japanese Society of Hematology 2002

Authors and Affiliations

  1. 1.Cancer Immune Therapy and Gene Therapy ProgramSan Raffaele Scientific InstituteMilanoItaly
  2. 2.Department of HematologyBone Marrow Transplantation UnitMilanoItaly

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