1
|
Pang Y, Holtzman NG. Immunopathogenic mechanisms and modulatory approaches to graft-versus-host disease prevention in acute myeloid leukaemia. Best Pract Res Clin Haematol 2023; 36:101475. [PMID: 37353287 PMCID: PMC10291443 DOI: 10.1016/j.beha.2023.101475] [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: 04/23/2023] [Revised: 05/03/2023] [Accepted: 05/03/2023] [Indexed: 06/25/2023]
Abstract
Allogeneic haematopoietic stem cell transplantation (HSCT) remains the only potential cure for intermediate to high-risk acute myeloid leukaemia (AML). The therapeutic effect of HSCT is largely dependent on the powerful donor-derived immune response against recipient leukaemia cells, known as graft-versus-leukaemia effect (GvL). However, the donor-derived immune system can also cause acute or chronic damage to normal recipient organs and tissues, in a process known as graft-versus-host disease (GvHD). GvHD is a leading cause of non-relapse mortality in HSCT recipients. There are many similarities and cross talk between the immune pathways of GvL and GvHD. Studies have demonstrated that both processes require the presence of mismatched alloantigens between the donor and recipient, and activation of immune responses centered around donor T-cells, which can be further modulated by various recipient or donor factors. Dissecting GvL from GvHD to achieve more effective GvHD prevention and enhanced GvL has been the holy grail of HSCT research. In this review, we focused on the key factors that contribute to the immune responses of GvL and GvHD, the effect on GvL with different GvHD prophylactic strategies, and the potential impact of various AML relapse prevention therapy or treatments on GvHD.
Collapse
Affiliation(s)
- Yifan Pang
- Department of Haematologic Oncology and Blood Disorders, Levine Cancer Institute, Charlotte, NC, USA.
| | - Noa G Holtzman
- Immune Deficiency Cellular Therapy Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| |
Collapse
|
2
|
Ueda Oshima M, Xie H, Zamora D, Flowers ME, Hill GR, Mielcarek MB, Sandmaier BM, Gooley TA, Boeckh MJ. Impact of GVHD prophylaxis on CMV reactivation and disease after HLA-matched peripheral blood stem cell transplantation. Blood Adv 2023; 7:1394-1403. [PMID: 36595478 PMCID: PMC10139935 DOI: 10.1182/bloodadvances.2022009112] [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: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
The kinetics of early and late cytomegalovirus (CMV) reactivation after hematopoietic cell transplantation using various methods of graft-versus-host-disease (GVHD) prophylaxis are poorly defined. We retrospectively compared CMV reactivation and disease among 780 seropositive patients given HLA-matched peripheral blood stem cell (PBSC) grafts and calcineurin inhibitor plus posttransplantation cyclophosphamide (PTCy; n = 44), mycophenolate mofetil (MMF; n = 414), or methotrexate (MTX; n = 322). Transplantation occurred between 2007 and 2018; CMV monitoring/management followed uniform standard practice. Hazards of CMV reactivation at various thresholds were compared. Spline curves were fit over average daily viral load and areas under the curve (AUC) within 1 year were calculated. PTCy and MMF were associated with an increased risk of early (day ≤100) CMV reactivation ≥250 IU/mL after multivariate adjustment. The viral load AUC at 1 year was highest with MMF (mean difference = 0.125 units vs MTX group) and similar between PTCy and MTX (mean difference = 0.016 units vs MTX group). CMV disease risk was similar across groups. There was no interaction between GVHD prophylaxis and CMV reactivation on chronic GVHD risk. Despite PTCy-associated increased risk of early CMV reactivation, the CMV disease risk by 1 year was low in HLA-matched PBSC transplant recipients. In contrast, MMF was associated with higher overall CMV viral burden in the 1 year posttransplant. Although different mechanisms of immunosuppressive agents may affect CMV reactivation risk, effective prevention of GVHD may reduce corticosteroid exposure and mitigate infection risk over time.
Collapse
Affiliation(s)
- Masumi Ueda Oshima
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA
| | - Hu Xie
- Fred Hutchinson Cancer Center, Seattle, WA
| | - Danniel Zamora
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA
| | - Mary E. Flowers
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA
| | - Geoffrey R. Hill
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA
| | - Marco B. Mielcarek
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA
| | - Brenda M. Sandmaier
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA
| | | | - Michael J. Boeckh
- Fred Hutchinson Cancer Center, Seattle, WA
- Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA
| |
Collapse
|
3
|
Sumii Y, Kondo T, Ikegawa S, Fukumi T, Iwamoto M, Nishimura MF, Sugiura H, Sando Y, Nakamura M, Meguri Y, Matsushita T, Tanimine N, Kimura M, Asada N, Ennishi D, Maeda Y, Matsuoka KI. Hematopoietic stem cell-derived Tregs are essential for maintaining favorable B cell lymphopoiesis following posttransplant cyclophosphamide. JCI Insight 2023; 8:162180. [PMID: 37092551 DOI: 10.1172/jci.insight.162180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 03/08/2023] [Indexed: 04/25/2023] Open
Abstract
Posttransplant cyclophosphamide (PTCy) is associated with a low incidence of chronic graft-versus-host disease (cGVHD) following hematopoietic stem cell (HSC) transplantation. Previous studies have shown the important roles of B cell immunity in cGVHD development. Here, we investigated the long-term reconstitution of B lymphopoiesis after PTCy using murine models. We first demonstrated that the immune homeostatic abnormality leading to cGVHD is characterized by an initial increase in effector T cells in the bone marrow and subsequent B and Treg cytopenia. PTCy, but not cyclosporine A or rapamycin, inhibits the initial alloreactive T cell response, which restores intra-bone marrow B lymphogenesis with a concomitant vigorous increase in Tregs. This leads to profound changes in posttransplant B cell homeostasis, including decreased B cell activating factors, increased transitional and regulatory B cells, and decreased germinal center B cells. To identify the cells responsible for PTCy-induced B cell tolerance, we selectively depleted Treg populations that were graft or HSC derived using DEREG mice. Deletion of either Treg population without PTCy resulted in critical B cytopenia. PTCy rescued B lymphopoiesis from graft-derived Treg deletion. In contrast, the negative effect of HSC-derived Treg deletion could not be overcome by PTCy, indicating that HSC-derived Tregs are essential for maintaining favorable B lymphopoiesis following PTCy. These findings define the mechanisms by which PTCy restores homeostasis of the B cell lineage and reestablishes immune tolerance.
Collapse
Affiliation(s)
- Yuichi Sumii
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Takumi Kondo
- Department of Hematology, Oncology and Respiratory Medicine and
| | | | - Takuya Fukumi
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Miki Iwamoto
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Midori Filiz Nishimura
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | - Yasuhisa Sando
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Makoto Nakamura
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Yusuke Meguri
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Takashi Matsushita
- Department of Dermatology, Faculty of Medicine, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Naoki Tanimine
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Maiko Kimura
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Daisuke Ennishi
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Yoshinobu Maeda
- Department of Hematology, Oncology and Respiratory Medicine and
| | | |
Collapse
|
4
|
Zhao C, Bartock M, Jia B, Shah N, Claxton DF, Wirk B, Rakszawski KL, Nickolich MS, Naik SG, Rybka WB, Ehmann WCC, Hohl RJ, Valentin J, Bernas-Peterson M, Gerber EM, Zimmerman M, Mierski JA, Mineishi S, Zheng H. Post-transplant cyclophosphamide alters immune signatures and leads to impaired T cell reconstitution in allogeneic hematopoietic stem cell transplant. J Hematol Oncol 2022; 15:64. [PMID: 35590334 PMCID: PMC9118756 DOI: 10.1186/s13045-022-01287-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/12/2022] [Indexed: 11/24/2022] Open
Abstract
Despite the increased usage of post-transplant cyclophosphamide (PTCy) in allogeneic hematopoietic stem cell transplantation (allo-HSCT), our knowledge of immune reconstitution post-allo-HSCT in the setting of PTCy is limited. Adequate immune reconstitution is the key to a successful transplant. In this study, we aim to investigate the effect of PTCy on the reconstitution of each immune component; more focus was placed on the immunophenotype and functions of T cells. Using blood samples from patients who underwent allo-HSCT under regimens containing PTCy (n = 23) versus those who received no PTCy (n = 14), we examined the impact of PTCy on the post-transplant immune response. We demonstrated a distinct T cell immune signature between PTCy versus non-PTCy group. PTCy significantly delayed T cell reconstitution and affected the T cell subsets by increasing regulatory T cells (Treg) while reducing naïve T cells. In addition, we observed remarkable enhancement of multiple inhibitory receptors (TIGIT, PD-1, TIM-3, CD38, CD39) on both CD4+ and CD8+ T cells on day 30 post-transplantation in patients who received PTCy. Importantly, upregulation of PD-1 on CD8 T cells was persistent through day 180 and these T cells were less functional, manifested by reduced cytokine production upon anti-CD3/CD28 stimulation. Furthermore, we found a significant correlation of T cell immune phenotypes to clinical outcome (disease relapse and GVHD) in patients who received PTCy. Our novel findings provide critical information to understand the mechanism of how PTCy impacts immune reconstitution in allo-HSCT and may subsequently lead to optimization of our clinical practice using this treatment.
Collapse
Affiliation(s)
- Chenchen Zhao
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Matthew Bartock
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Bei Jia
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Neal Shah
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - David F Claxton
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Baldeep Wirk
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Kevin L Rakszawski
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Myles S Nickolich
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Seema G Naik
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Witold B Rybka
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - W Christopher C Ehmann
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Raymond J Hohl
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Jessica Valentin
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Michelle Bernas-Peterson
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Emily M Gerber
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Michele Zimmerman
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Joseph A Mierski
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Shin Mineishi
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA
| | - Hong Zheng
- Penn State Cancer Institute, Penn State University College of Medicine, 500 University Dr, PO Box 850, Hershey, PA, 17033, USA.
| |
Collapse
|
5
|
Ikegawa S, Matsuoka KI. Harnessing Treg Homeostasis to Optimize Posttransplant Immunity: Current Concepts and Future Perspectives. Front Immunol 2021; 12:713358. [PMID: 34526990 PMCID: PMC8435715 DOI: 10.3389/fimmu.2021.713358] [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: 05/22/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022] Open
Abstract
CD4+CD25+Foxp3+ regulatory T cells (Tregs) are functionally distinct subsets of mature T cells with broad suppressive activity and have been shown to play an important role in the establishment of immune tolerance after allogeneic hematopoietic stem cell transplantation (HSCT). Tregs exhibit an activated phenotype from the stage of emigration from the thymus and maintain continuous proliferation in the periphery. The distinctive feature in homeostasis enables Tregs to respond sensitively to small environmental changes and exert necessary and sufficient immune suppression; however, on the other hand, it also predisposes Tregs to be susceptible to apoptosis in the inflammatory condition post-transplant. Our studies have attempted to define the intrinsic and extrinsic factors affecting Treg homeostasis from the acute to chronic phases after allogeneic HSCT. We have found that altered cytokine environment in the prolonged post-HSCT lymphopenia or peri-transplant use of immune checkpoint inhibitors could hamper Treg reconstitution, leading to refractory graft-versus-host disease. Using murine models and clinical trials, we have also demonstrated that proper intervention with low-dose interleukin-2 or post-transplant cyclophosphamide could restore Treg homeostasis and further amplify the suppressive function after HSCT. The purpose of this review is to reconsider the distinctive characteristics of post-transplant Treg homeostasis and discuss how to harness Treg homeostasis to optimize posttransplant immunity for developing a safe and efficient therapeutic strategy.
Collapse
Affiliation(s)
- Shuntaro Ikegawa
- Department of Hematology and Oncology, Okayama University, Okayama, Japan.,Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, United States
| | - Ken-Ichi Matsuoka
- Department of Hematology and Oncology, Okayama University, Okayama, Japan
| |
Collapse
|
6
|
Immune control of cytomegalovirus reactivation in stem cell transplantation. Blood 2021; 139:1277-1288. [PMID: 34166512 DOI: 10.1182/blood.2020010028] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/22/2021] [Indexed: 11/20/2022] Open
Abstract
The reactivation of viruses from latency after allogeneic stem cell transplantation (SCT) continues to represent a major clinical challenge requiring sophisticated monitoring strategies in the context of prophylactic and/or pre-emptive antiviral drugs that are associated with significant expense, toxicity, and rates of failure. Accumulating evidence has demonstrated the association of polyfunctional virus-specific T-cells with protection from viral reactivation, affirmed by the ability of adoptively transferred virus-specific T-cells to prevent and treat reactivation and disease. The roles of innate cells (NK cells) in early viral surveillance, and dendritic cells in priming of T-cells have also been delineated. Most recently, a role for strain-specific humoral responses in preventing early cytomegalovirus (CMV) reactivation has been demonstrated in preclinical models. Despite these advances, many unknowns remain: what are the critical innate and adaptive responses over time, is the origin (e.g. recipient versus donor) and localization (e.g. in parenchymal tissue versus lymphoid organs) of these responses important, how does GVHD and the prevention/treatment thereof (e.g. high dose steroids) impact the functionality and relevance of a particular immune axis, do the immune parameters that control latency, reactivation and dissemination differ, and what is the impact of new antiviral drugs on the development of enduring antiviral immunity. Thus, whilst antiviral drugs have provided major improvements over the last two decades, understanding the immunological paradigms underpinning protective antiviral immunity after SCT offers the potential to generate non-toxic immune-based therapeutic approaches for lasting protection from viral reactivation.
Collapse
|
7
|
Maeda Y. Immune reconstitution after T-cell replete HLA haploidentical hematopoietic stem cell transplantation using high-dose post-transplant cyclophosphamide. J Clin Exp Hematop 2021; 61:1-9. [PMID: 33551435 PMCID: PMC8053574 DOI: 10.3960/jslrt.20040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
As HLA haploidentical related donors are quickly available, HLA
haploidentical hematopoietic stem cell transplantation (haploHSCT) using high-dose
post-transplant cyclophosphamide (PTCy) is now widely used. Recent basic and
clinical studies revealed the details of immune reconstitution after T-cell replete
haploHSCT using PTCy. T cells and NK cells in the graft proliferate abundantly at day 3
post-haploHSCT, and the PTCy eliminates these proliferating cells. After ablation of
proliferating mature cells, donor-derived NK cell reconstitution occurs after the second
week; however, recovering NK cells remain functionally impaired for at least several
months after haploHSCT. PTCy depletes proliferating cells, resulting in the preferential
accumulation of Treg and CD4+ T cells, especially the memory stem T cell
(TSCM) phenotype. TSCM capable of both
self-renewal and differentiation into effector T cells may play an important role in the
first month of immune reconstitution. Subsequently, de novo T cells
progressively recover but their levels remain well below those of donor CD4+ T cells at
the first year after haploHSCT. The phenotype of recovering T cells after HSCT is
predominantly effector memory, whereas B cells are predominantly phenotypically naive
throughout the first year after haploHSCT. B cell recovery depends on de
novo generation and they are not detected until week 4 after haploHSCT. At week
5, recovering B cells mostly exhibit an unconventional transitional cell phenotype and the
cell subset undergoes maturation. Recent advances in immune reconstitution have improved
our understanding of the relationship between haploHSCT with PTCy and the clinical
outcome.
Collapse
Affiliation(s)
- Yoshinobu Maeda
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| |
Collapse
|