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Ogata J, Shimada Y, Ohashi T, Kobayashi H. Usefulness of antibody-drug conjugate as preconditioning for hematopoietic stem cell-targeted gene therapy in wild-type and Fabry disease mouse models. Mol Genet Metab 2024; 142:108494. [PMID: 38820907 DOI: 10.1016/j.ymgme.2024.108494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 06/02/2024]
Abstract
BACKGROUND Fabry disease (FD) is characterized by deficient activity of α-galactosidase A (GLA). Consequently, globotriaosylceramide (Gb3) accumulates in various organs, causing cardiac, renal, and cerebrovascular damage. Gene therapies for FD have been investigated in humans. Strong conditioning is required for hematopoietic stem cell-targeted gene therapy (HSC-GT). However, strong conditioning leads to various side effects and should be avoided. In this study, we tested antibody-based conditioning for HSC-GT in wild-type and FD model mice. METHODS After preconditioning with an antibody-drug conjugate, HSC-GT using a lentiviral vector was performed in wild-type and Fabry model mice. In the wild-type experiment, the EGFP gene was introduced into HSCs and transplanted into preconditioned mice, and donor chimerism and EGFP expression were analyzed. In the FD mouse model, the GLA gene was introduced into HSCs and transplanted into preconditioned Fabry mice. GLA activity and Gb3 accumulation in the organs were analyzed. RESULTS In the wild-type mouse experiment, when anti-CD45 antibody-drug conjugate was used, the percentage of donor cells at 6 months was 64.5%, and 69.6% of engrafted donor peripheral blood expressed EGFP. When anti-CD117 antibody-drug conjugate and ATG were used, the percentage of donor cells at 6 months was 80.7%, and 73.4% of engrafted donor peripheral blood expressed EGFP. Although large variations in GLA activity among mice were observed in the FD mouse experiment for both preconditioning regimens, Gb3 was significantly reduced in many organs. CONCLUSIONS Antibody-based preconditioning may be an alternative preconditioning strategy for HSC-GT for treating FD.
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Affiliation(s)
- Jin Ogata
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Japan; Department of Pediatrics, The Jikei University School of Medicine, Japan
| | - Yohta Shimada
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Japan
| | - Toya Ohashi
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Japan; Department of Pediatrics, The Jikei University School of Medicine, Japan.
| | - Hiroshi Kobayashi
- Division of Gene Therapy, Research Center for Medical Sciences, The Jikei University School of Medicine, Japan; Department of Pediatrics, The Jikei University School of Medicine, Japan
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2
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Kosasih HJ, de Bock CE. Less is more: Depleting myeloid-biased HSCs to restore immune function. Hemasphere 2024; 8:e125. [PMID: 39035108 PMCID: PMC11258479 DOI: 10.1002/hem3.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Accepted: 06/25/2024] [Indexed: 07/23/2024] Open
Affiliation(s)
- Hansen J. Kosasih
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
- School of Clinical MedicineUNSW SydneyKensingtonNew South WalesAustralia
| | - Charles E. de Bock
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
- School of Clinical MedicineUNSW SydneyKensingtonNew South WalesAustralia
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Saha A, Palchaudhuri R, Lanieri L, Hyzy S, Riddle MJ, Panthera J, Eide CR, Tolar J, Panoskaltsis-Mortari A, Gorfinkel L, Tkachev V, Gerdemann U, Alvarez-Calderon F, Palato ER, MacMillan ML, Wagner JE, Kean LS, Osborn MJ, Kiem HP, Scadden DT, Olson LM, Blazar BR. Alloengraftment without significant toxicity or GVHD in CD45 antibody-drug conjugate-conditioned Fanconi anemia mice. Blood 2024; 143:2201-2216. [PMID: 38447038 PMCID: PMC11143525 DOI: 10.1182/blood.2023023549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/09/2024] [Accepted: 02/25/2024] [Indexed: 03/08/2024] Open
Abstract
ABSTRACT Fanconi anemia (FA) is an inherited DNA repair disorder characterized by bone marrow (BM) failure, developmental abnormalities, myelodysplasia, leukemia, and solid tumor predisposition. Allogeneic hematopoietic stem cell transplantation (allo-HSCT), a mainstay treatment, is limited by conditioning regimen-related toxicity and graft-versus-host disease (GVHD). Antibody-drug conjugates (ADCs) targeting hematopoietic stem cells (HSCs) can open marrow niches permitting donor stem cell alloengraftment. Here, we report that single dose anti-mouse CD45-targeted ADC (CD45-ADC) facilitated stable, multilineage chimerism in 3 distinct FA mouse models representing 90% of FA complementation groups. CD45-ADC profoundly depleted host stem cell enriched Lineage-Sca1+cKit+ cells within 48 hours. Fanca-/- recipients of minor-mismatched BM and single dose CD45-ADC had peripheral blood (PB) mean donor chimerism >90%; donor HSCs alloengraftment was verified in secondary recipients. In Fancc-/- and Fancg-/- recipients of fully allogeneic grafts, PB mean donor chimerism was 60% to 80% and 70% to 80%, respectively. The mean percent donor chimerism in BM and spleen mirrored PB results. CD45-ADC-conditioned mice did not have clinical toxicity. A transient <2.5-fold increase in hepatocellular enzymes and mild-to-moderate histopathological changes were seen. Under GVHD allo-HSCT conditions, wild-type and Fanca-/- recipients of CD45-ADC had markedly reduced GVHD lethality compared with lethal irradiation. Moreover, single dose anti-human CD45-ADC given to rhesus macaque nonhuman primates on days -6 or -10 was at least as myeloablative as lethal irradiation. These data suggest that CD45-ADC can potently promote donor alloengraftment and hematopoiesis without significant toxicity or severe GVHD, as seen with lethal irradiation, providing strong support for clinical trial considerations in highly vulnerable patients with FA.
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Affiliation(s)
- Asim Saha
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | | | | | | | - Megan J. Riddle
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Jamie Panthera
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Cindy R. Eide
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Jakub Tolar
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Angela Panoskaltsis-Mortari
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Lev Gorfinkel
- Boston Children's Hospital, Dana-Farber Cancer Institute, Boston, MA
| | - Victor Tkachev
- Massachusetts General Hospital Center for Transplantation Sciences, Mass General Brigham and Massachusetts General Hospital, Boston, MA
| | - Ulrike Gerdemann
- Boston Children's Hospital, Dana-Farber Cancer Institute, Boston, MA
| | | | | | - Margaret L. MacMillan
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - John E. Wagner
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Leslie S. Kean
- Boston Children's Hospital, Dana-Farber Cancer Institute, Boston, MA
| | - Mark J. Osborn
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
| | - Hans-Peter Kiem
- Department of Medicine, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA
| | - David T. Scadden
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
| | | | - Bruce R. Blazar
- Division of Blood and Marrow Transplant & Cellular Therapy, Department of Pediatrics and Masonic Cancer Center, University of Minnesota, Minneapolis, MN
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Lindsay JO, Hind D, Swaby L, Berntsson H, Bradburn M, Bannur C U, Byrne J, Clarke C, Desoysa L, Dickins B, Din S, Emsley R, Foulds GA, Gribben J, Hawkey C, Irving PM, Kazmi M, Lee E, Loban A, Lobo A, Mahida Y, Moran GW, Papaioannou D, Parkes M, Peniket A, Pockley AG, Satsangi J, Subramanian S, Travis S, Turton E, Uttenthal B, Rutella S, Snowden JA. Safety and efficacy of autologous haematopoietic stem-cell transplantation with low-dose cyclophosphamide mobilisation and reduced intensity conditioning versus standard of care in refractory Crohn's disease (ASTIClite): an open-label, multicentre, randomised controlled trial. Lancet Gastroenterol Hepatol 2024; 9:333-345. [PMID: 38340759 DOI: 10.1016/s2468-1253(23)00460-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 02/12/2024]
Abstract
BACKGROUND A previous controlled trial of autologous haematopoietic stem-cell transplantation (HSCT) in patients with refractory Crohn's disease did not meet its primary endpoint and reported high toxicity. We aimed to assess the safety and efficacy of HSCT with an immune-ablative regimen of reduced intensity versus standard of care in this patient population. METHODS This open-label, multicentre, randomised controlled trial was conducted in nine National Health Service hospital trusts across the UK. Adults (aged 18-60 years) with active Crohn's disease on endoscopy (Simplified Endoscopic Score for Crohn's Disease [SES-CD] ulcer sub-score of ≥2) refractory to two or more classes of biological therapy, with no perianal or intra-abdominal sepsis or clinically significant comorbidity, were recruited. Participants were centrally randomly assigned (2:1) to either HSCT with a reduced dose of cyclophosphamide (intervention group) or standard care (control group). Randomisation was stratified by trial site by use of random permuted blocks of size 3 and 6. Patients in the intervention group underwent stem-cell mobilisation (cyclophosphamide 1 g/m2 with granulocyte colony-stimulating factor (G-CSF) 5 μg/kg) and stem-cell harvest (minimum 2·0 × 106 CD34+ cells per kg), before conditioning (fludarabine 125 mg/m2, cyclophosphamide 120 mg/kg, and rabbit anti-thymocyte globulin [thymoglobulin] 7·5 mg/kg in total) and subsequent stem-cell reinfusion supported by G-CSF. Patients in the control group continued any available conventional, biological, or nutritional therapy. The primary outcome was absence of endoscopic ulceration (SES-CD ulcer sub-score of 0) without surgery or death at week 48, analysed in the intention-to-treat population by central reading. This trial is registered with the ISRCTN registry, 17160440. FINDINGS Between Oct 18, 2018, and Nov 8, 2019, 49 patients were screened for eligibility, of whom 23 (47%) were randomly assigned: 13 (57%) to the intervention group and ten (43%) to the control group. In the intervention group, ten (77%) participants underwent HSCT and nine (69%) reached 48-week follow-up; in the control group, nine (90%) reached 48-week follow-up. The trial was halted in response to nine reported suspected unexpected serious adverse reactions in six (46%) patients in the intervention group, including renal failure due to proven thrombotic microangiopathy in three participants and one death due to pulmonary veno-occlusive disease. At week 48, absence of endoscopic ulceration without surgery or death was reported in three (43%) of seven participants in the intervention group and in none of six participants in the control group with available data. Serious adverse events were more frequent in the intervention group (38 in 13 [100%] patients) than in the control group (16 in four [40%] patients). A second patient in the intervention group died after week 48 of respiratory and renal failure. INTERPRETATION Although HSCT with an immune-ablative regimen of reduced intensity decreased endoscopic disease activity, significant adverse events deem this regimen unsuitable for future clinical use in patients with refractory Crohn's disease. FUNDING Efficacy and Mechanism Evaluation Programme, a Medical Research Council and National Institute for Health Research partnership.
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Affiliation(s)
- James O Lindsay
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Daniel Hind
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Lizzie Swaby
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Hannah Berntsson
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Mike Bradburn
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Uday Bannur C
- Department of Radiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Jennifer Byrne
- Department of Haematology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Christopher Clarke
- Department of Radiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Lauren Desoysa
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Ben Dickins
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Shahida Din
- Department of Gastroenterology, Western General Hospital, Edinburgh, UK
| | - Richard Emsley
- Department of Biostatistics & Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Gemma A Foulds
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - John Gribben
- Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Christopher Hawkey
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK; Translational Medical Sciences, School of Medicine, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Peter M Irving
- Department of Gastroenterology, Guy's and Saint Thomas' Hospitals NHS Trust, London, UK
| | - Majid Kazmi
- King's College Hospital NHS Foundation Trust, London, UK
| | - Ellen Lee
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Amanda Loban
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Alan Lobo
- Department of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Yashwant Mahida
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK; Translational Medical Sciences, School of Medicine, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Gordon W Moran
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK; Translational Medical Sciences, School of Medicine, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Diana Papaioannou
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Miles Parkes
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Andrew Peniket
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - A Graham Pockley
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Jack Satsangi
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | | | - Simon Travis
- NIHR Biomedical Research Centre, Translational Gastroenterology Unit, Nuffield Department of Experimental Medicine, University of Oxford, Oxford, UK
| | - Emily Turton
- Sheffield Clinical Trials Research Unit, University of Sheffield, Sheffield, UK
| | - Ben Uttenthal
- Department of Clinical Haematology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Sergio Rutella
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - John A Snowden
- Division of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield, UK; Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
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5
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Aerts-Kaya F, van Til NP. Gene and Cellular Therapies for Leukodystrophies. Pharmaceutics 2023; 15:2522. [PMID: 38004502 PMCID: PMC10675548 DOI: 10.3390/pharmaceutics15112522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/13/2023] [Accepted: 10/20/2023] [Indexed: 11/26/2023] Open
Abstract
Leukodystrophies are a heterogenous group of inherited, degenerative encephalopathies, that if left untreated, are often lethal at an early age. Although some of the leukodystrophies can be treated with allogeneic hematopoietic stem cell transplantation, not all patients have suitable donors, and new treatment strategies, such as gene therapy, are rapidly being developed. Recent developments in the field of gene therapy for severe combined immune deficiencies, Leber's amaurosis, epidermolysis bullosa, Duchenne's muscular dystrophy and spinal muscular atrophy, have paved the way for the treatment of leukodystrophies, revealing some of the pitfalls, but overall showing promising results. Gene therapy offers the possibility for overexpression of secretable enzymes that can be released and through uptake, allow cross-correction of affected cells. Here, we discuss some of the leukodystrophies that have demonstrated strong potential for gene therapy interventions, such as X-linked adrenoleukodystrophy (X-ALD), and metachromatic leukodystrophy (MLD), which have reached clinical application. We further discuss the advantages and disadvantages of ex vivo lentiviral hematopoietic stem cell gene therapy, an approach for targeting microglia-like cells or rendering cross-correction. In addition, we summarize ongoing developments in the field of in vivo administration of recombinant adeno-associated viral (rAAV) vectors, which can be used for direct targeting of affected cells, and other recently developed molecular technologies that may be applicable to treating leukodystrophies in the future.
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Affiliation(s)
- Fatima Aerts-Kaya
- Department of Stem Cell Sciences, Graduate School of Health Sciences, Center for Stem Cell Research and Development, Hacettepe University, 06100 Ankara, Turkey;
- Advanced Technologies Application and Research Center, Hacettepe University, 06800 Ankara, Turkey
| | - Niek P. van Til
- Amsterdam Leukodystrophy Center, Emma Children’s Hospital, Amsterdam University Medical Centers, Amsterdam Neuroscience, 1081 HV Amsterdam, The Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
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Khan A, Paneerselvam N, Lawson BR. Antiretrovirals to CCR5 CRISPR/Cas9 gene editing - A paradigm shift chasing an HIV cure. Clin Immunol 2023; 255:109741. [PMID: 37611838 PMCID: PMC10631514 DOI: 10.1016/j.clim.2023.109741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/18/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023]
Abstract
The evolution of drug-resistant viral strains and anatomical and cellular reservoirs of HIV pose significant clinical challenges to antiretroviral therapy. CCR5 is a coreceptor critical for HIV host cell fusion, and a homozygous 32-bp gene deletion (∆32) leads to its loss of function. Interestingly, an allogeneic HSCT from an HIV-negative ∆32 donor to an HIV-1-infected recipient demonstrated a curative approach by rendering the recipient's blood cells resistant to viral entry. Ex vivo gene editing tools, such as CRISPR/Cas9, hold tremendous promise in generating allogeneic HSC grafts that can potentially replace allogeneic ∆32 HSCTs. Here, we review antiretroviral therapeutic challenges, clinical successes, and failures of allogeneic and allogeneic ∆32 HSCTs, and newer exciting developments within CCR5 editing using CRISPR/Cas9 in the search to cure HIV.
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Affiliation(s)
- Amber Khan
- The Scintillon Research Institute, 6868 Nancy Ridge Drive, San Diego, CA 92121, USA
| | | | - Brian R Lawson
- The Scintillon Research Institute, 6868 Nancy Ridge Drive, San Diego, CA 92121, USA.
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7
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Baranwal A, Chhetri R, Yeung D, Clark M, Shah S, Litzow MR, Hogan WJ, Mangaonkar A, Alkhateeb HB, Singhal D, Cibich A, Bardy P, Kok CH, Hiwase DK, Shah MV. Factors predicting survival following alloSCT in patients with therapy-related AML and MDS: a multicenter study. Bone Marrow Transplant 2023; 58:769-776. [PMID: 37012415 DOI: 10.1038/s41409-023-01970-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 04/05/2023]
Abstract
Therapy-related myeloid neoplasms (t-MN) are aggressive myeloid neoplasms. Factors predicting post-allogeneic stem cell transplant (alloSCT) survival are not well-known. We studied the prognostic utility of factors at: t-MN diagnosis, pre-alloSCT, and post-alloSCT. Primary endpoints were 3-year overall survival (OS), relapse incidence (RI), and non-relapse mortality (NRM). Post-alloSCT OS did not differ between t-MDS and t-AML (20.1 vs. 19.6 months, P = 1), though t-MDS had a significantly higher 3-year RI compared to t-AML (45.1% vs. 26.9%, P = 0.03). In t-MDS, the presence of monosomy 5 (HR 3.63, P = 0.006) or monosomy 17 (HR 11.81, P = 0.01) pre-alloSCT were associated with higher RI. Complex karyotype was the only factor adversely influencing survival at all the timepoints. The inclusion of genetic information yielded 2 risk-categories: high-risk defined by the presence of pathogenic variants (PV) in (TP53/BCOR/IDH1/GATA2/BCORL1) and standard-risk (remainder of the patients) with 3-year post-alloSCT OS of 0% and 64.6%, respectively (P = 0.001). We concluded that while alloSCT was curative in a subset of t-MN patients, outcomes remained poor, specifically in the high-risk category. t-MDS patients, especially those with persistent disease pre-alloSCT were at increased risk of relapse. Disease-related factors at t-MN diagnosis were the most prognostic of post-alloSCT survival; utility of factors available later in the course, was incremental.
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Affiliation(s)
- Anmol Baranwal
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA
| | - Rakchha Chhetri
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia
- University of Adelaide, Adelaide, SA, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
| | - David Yeung
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia
- University of Adelaide, Adelaide, SA, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
| | - Matthew Clark
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA
| | - Syed Shah
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Mark R Litzow
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA
| | - William J Hogan
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA
| | - Abhishek Mangaonkar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA
| | - Hassan B Alkhateeb
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA
| | - Deepak Singhal
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia
- University of Adelaide, Adelaide, SA, Australia
| | - Alia Cibich
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia
| | - Peter Bardy
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia
- University of Adelaide, Adelaide, SA, Australia
| | - Chung H Kok
- University of Adelaide, Adelaide, SA, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia
| | - Devendra K Hiwase
- Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, SA, Australia.
- University of Adelaide, Adelaide, SA, Australia.
- Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, SA, Australia.
| | - Mithun Vinod Shah
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
- William J. von Leibig Center for Transplantation, Mayo Clinic, Rochester, MN, USA.
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8
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Radtke S. The unknown impact of conditioning on HSC engraftment and clonal dynamics. Mol Ther Methods Clin Dev 2023; 28:385-386. [PMID: 36874241 PMCID: PMC9982445 DOI: 10.1016/j.omtm.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Affiliation(s)
- Stefan Radtke
- Stem Cell and Gene Therapy Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
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