title: Graft-versus-adult T-cell leukemia/lymphoma effect following allogeneic hematopoietic stem cell transplantation.
abstract: Allogeneic hematopoietic stem cell transplantation (allo-HSCT) has proven effective in adult T-cell leukemia/lymphoma (ATL) patients. To study the graft-versus-ATL (Gv-ATL) effects after allo-HSCT, we analyzed 21 ATL patients who had been treated at our hospital. Of these, 18 had acute-, 2 had lymphoma- and 1 had chronic-type ATL; at allo-HSCT, seven patients were in CR, one was in PR, five had stable disease (SD) and eight had progressive disease (PD). Disease state after allo-HSCT was CR in 14, PR in 3, SD in 1 and PD in 3 patients. Among 15 patients who survived longer than 100 days, ATL relapsed in 10 patients, skin relapsed in 9 patients and 5 had relapsed on the skin alone. After we discontinued immunosuppressant therapy in these 10 patients, 8 manifested GVHD; ATL was ameliorated to CR in 6 patients. Donor lymphocytes were infused into two patients who did not show GVHD; one obtained CR. In five patients with skin relapse alone, four patients achieved CR following the discontinuation of the immunosuppressants. Our results demonstrate that relapse of ATL after allo-HSCT tends to develop on skin, and Gv-ATL effects played a critical role in the outcome of allo-HSCT for ATL.
authors.affiliation: Department of Hematology, Imamura Bun-in Hospital, Kagoshima, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yonekura
authors.forename: A
authors.initials: A
authors.lastname: Utsunomiya
authors.forename: Y
authors.initials: Y
authors.lastname: Takatsuka
authors.forename: S
authors.initials: S
authors.lastname: Takeuchi
authors.forename: Y
authors.initials: Y
authors.lastname: Tashiro
authors.forename: T
authors.initials: T
authors.lastname: Kanzaki
authors.forename: T
authors.initials: T
authors.lastname: Kanekura
mesh_terms: D000328:Adult; D015331:Cohort Studies; D018572:Disease-Free Survival; D004334:Drug Administration Schedule; D005260:Female; D006086:Graft vs Host Disease / Q000188:drug therapy; D020544:Graft vs Leukemia Effect; D018380:Hematopoietic Stem Cell Transplantation / Q000379:methods*; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage / Q000009:adverse effects; D053208:Kaplan-Meier Estimate; D015459:Leukemia-Lymphoma, Adult T-Cell / Q000473:pathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012189:Retrospective Studies; D012871:Skin Diseases / Q000473:pathology; D014184:Transplantation, Homologous
chemical_list: D007166:Immunosuppressive Agents