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Baron F, Labopin M, Tischer J, Ciceri F, Raiola AM, Blaise D, Sica S, Vydra J, Fanin R, Stölzel F, Busca A, Diez-Martin JL, Koc Y, Nagler A, Mohty M. HLA-haploidentical transplantation for relapsed/refractory AML: better LFS with BM than with PBSC in patients ≥ 55 years of age. Am J Hematol 2022; 97:1065-1074. [PMID: 35696192 DOI: 10.1002/ajh.26627] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 11/12/2022]
Abstract
The best stem cell source for T-cell replete HLA-haploidentical transplantation with post-transplant cyclophosphamide (PTCy) remains to be determined. In this EBMT retrospective study we analyzed the impact of stem cell source on leukemia-free survival (LFS) in adult patients with primary refractory or relapsed acute myeloid leukemia (AML) given grafts from HLA-haploidentical donors with PTCy as graft-versus-host disease (GVHD) prophylaxis. A total of 668 patients (249 bone marrow (BM) and 419 peripheral blood stem cells (PBSC) recipients) met the inclusion criteria. The use of PBSC was associated with a higher incidence of grade II-IV (HR = 1.59, P = 0.029) and grade III-IV (HR = 2.08, P = 0.013) acute GVHD. There was a statistical interaction between patient age and the impact of stem cell source for LFS (P < 0.01). In multivariate Cox models, among patients <55 years, the use of PBSC versus BM resulted in comparable LFS (HR = 0.82, P = 0.2). In contrast, in patients ≥55 years of age, the use of PBSC versus BM was associated with higher non-relapse mortality (NRM) (HR = 1.7, P = 0.01), lower LFS (HR = 1.37, P = 0.026) and lower overall survival (OS) (HR = 1.33, P = 0.044). In conclusions, our data suggest that in patients ≥55 years of age with active AML at HLA-haploidentical transplantation, the use of BM instead of PBSC as stem cell source results in lower NRM and better LFS. In contrast among younger patients, the use of PBSC results in at least a comparable LFS. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Frédéric Baron
- Laboratory of Hematology, GIGA-I3, University of Liege and CHU of Liège, Liege, Belgium
| | - Myriam Labopin
- EBMT Paris study office/CEREST-TC, Paris, France.,Department of Hematology, Saint Antoine Hospital, Paris, France.,INSERM UMR 938, Paris, France.,Université Pierre et Marie Curie, Paris, France
| | | | - Fabio Ciceri
- Ospedale San Raffaele s.r.l., Haematology and BMT, Milan, Italy
| | | | - Didier Blaise
- Programme de Transplantation&Therapie Cellulaire, Centre de Recherche en Cancérologie de Marseille, Institut Paoli Calmettes, Marseille, France
| | - Simona Sica
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Jan Vydra
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Renato Fanin
- Azienda Ospedaliero Universitaria di Udine, Division of Hematology, Udine, Italy
| | | | - Alessandro Busca
- SSCVD Trapianto di Cellule Staminali, AOU Citta della Salute e della Scienza di Torino, Torino, Italy
| | | | - Yener Koc
- Medicana International Hospital Istanbul, Bone Marrow Transplant Unit, Istanbul, Turkey
| | - Arnon Nagler
- Division of Hematology and Bone Marrow Transplantation, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Mohamad Mohty
- EBMT Paris study office/CEREST-TC, Paris, France.,Department of Hematology, Saint Antoine Hospital, Paris, France.,INSERM UMR 938, Paris, France.,Université Pierre et Marie Curie, Paris, France
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Consequence of Histoincompatibility beyond GvH-Reaction in Cytomegalovirus Disease Associated with Allogeneic Hematopoietic Cell Transplantation: Change of Paradigm. Viruses 2021; 13:v13081530. [PMID: 34452395 PMCID: PMC8402734 DOI: 10.3390/v13081530] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/23/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023] Open
Abstract
Hematopoietic cell (HC) transplantation (HCT) is the last resort to cure hematopoietic malignancies that are refractory to standard therapies. Hematoablative treatment aims at wiping out tumor cells as completely as possible to avoid leukemia/lymphoma relapse. This treatment inevitably co-depletes cells of hematopoietic cell lineages, including differentiated cells that constitute the immune system. HCT reconstitutes hematopoiesis and thus, eventually, also antiviral effector cells. In cases of an unrelated donor, that is, in allogeneic HCT, HLA-matching is performed to minimize the risk of graft-versus-host reaction and disease (GvHR/D), but a mismatch in minor histocompatibility antigens (minor HAg) is unavoidable. The transient immunodeficiency in the period between hematoablative treatment and reconstitution by HCT gives latent cytomegalovirus (CMV) the chance to reactivate from latently infected donor HC or from latently infected organs of the recipient, or from both. Clinical experience shows that HLA and/or minor-HAg mismatches increase the risk of complications from CMV. Recent results challenge the widespread, though never proven, view of a mechanistic link between GvHR/D and CMV. Instead, new evidence suggests that histoincompatibility promotes CMV disease by inducing non-cognate transplantation tolerance that inhibits an efficient reconstitution of high-avidity CD8+ T cells capable of recognizing and resolving cytopathogenic tissue infection.
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