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Mohty R, Al Kadhimi Z, Kharfan-Dabaja M. Post-transplant cyclophosphamide or cell selection in haploidentical allogeneic hematopoietic cell transplantation? Hematology 2024; 29:2326384. [PMID: 38597828 DOI: 10.1080/16078454.2024.2326384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/28/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND One major limitation for broader applicability of allogeneic hematopoietic cell transplantation (allo-HCT) in the past was the lack of HLA-matched histocompatible donors. Preclinical mouse studies using T-cell depleted haploidentical grafts led to an increased interest in the use of ex vivo T-cell depleted (TCD) haploidentical allo-HCT. TCD grafts through negative (T-cell depletion) or positive (CD34+ cell selection) techniques have been investigated to reduce the risk of graft-versus-host disease (GVHD) given the known implications of alloreactive T cells. A more practical approach to deplete alloreactive T cells in vivo using high doses of cyclophosphamide after allografting has proved to be feasible in overcoming the HLA barrier. Such approach has extended allo-HCT feasibility to patients for whom donors could not be found in the past. Nowadays, haploidentical donors represent a common donor source for patients in need of an allo-HCT. The broad application of haploidentical donors became possible by understanding the importance of depleting alloreactive donor T cells to facilitate engraftment and reduce incidence and severity of GVHD. These techniques involve ex vivo graft manipulation or in vivo utilization of pharmacologic agents, notably post-transplant cyclophosphamide (PTCy). DISCUSSION While acknowledging that no randomized controlled prospective studies have been yet conducted comparing TCD versus PTCy in haploidentical allo-HCT recipients, there are two advantages that would favor the PTCy, namely ease of application and lower cost. However, emerging data on adverse events associated with PTCy including, but not limited to cardiac associated toxicities or increased incidence of post-allograft infections, and others, are important to recognize.
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Affiliation(s)
- Razan Mohty
- Division of Hematology Oncology, Department of Medicine, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Zaid Al Kadhimi
- Division of Hematology Oncology, Department of Medicine, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Mohamed Kharfan-Dabaja
- Division of Hematology-Oncology, Blood and Marrow Transplantation Program, Mayo Clinic, Jacksonville, FL, USA
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Muckenhuber M, Mengrelis K, Weijler AM, Steiner R, Kainz V, Buresch M, Regele H, Derdak S, Kubetz A, Wekerle T. IL-6 inhibition prevents costimulation blockade-resistant allograft rejection in T cell-depleted recipients by promoting intragraft immune regulation in mice. Nat Commun 2024; 15:4309. [PMID: 38830846 PMCID: PMC11148062 DOI: 10.1038/s41467-024-48574-w] [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: 08/28/2023] [Accepted: 04/30/2024] [Indexed: 06/05/2024] Open
Abstract
The efficacy of costimulation blockade with CTLA4-Ig (belatacept) in transplantation is limited due to T cell-mediated rejection, which also persists after induction with anti-thymocyte globulin (ATG). Here, we investigate why ATG fails to prevent costimulation blockade-resistant rejection and how this barrier can be overcome. ATG did not prevent graft rejection in a murine heart transplant model of CTLA4-Ig therapy and induced a pro-inflammatory cytokine environment. While ATG improved the balance between regulatory T cells (Treg) and effector T cells in the spleen, it had no such effect within cardiac allografts. Neutralizing IL-6 alleviated graft inflammation, increased intragraft Treg frequencies, and enhanced intragraft IL-10 and Th2-cytokine expression. IL-6 blockade together with ATG allowed CTLA4-Ig therapy to achieve long-term, rejection-free heart allograft survival. This beneficial effect was abolished upon Treg depletion. Combining ATG with IL-6 blockade prevents costimulation blockade-resistant rejection, thereby eliminating a major impediment to clinical use of costimulation blockers in transplantation.
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Affiliation(s)
- Moritz Muckenhuber
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Konstantinos Mengrelis
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Anna Marianne Weijler
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Romy Steiner
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Verena Kainz
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Marlena Buresch
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Heinz Regele
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Sophia Derdak
- Core Facilities, Medical University of Vienna, Vienna, Austria
| | - Anna Kubetz
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria
| | - Thomas Wekerle
- Div. of Transplantation, Dept. of General Surgery, Medical University of Vienna, Vienna, Austria.
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Admiraal R, Versluijs AB, Huitema ADR, Ebskamp L, Lacna A, de Kanter CTK, Bierings MB, Boelens JJ, Lindemans CA, Nierkens S. High-dose individualized antithymocyte globulin with therapeutic drug monitoring in high-risk cord blood transplant. Cytotherapy 2024; 26:599-605. [PMID: 38466262 DOI: 10.1016/j.jcyt.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 01/25/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Graft-versus-host disease (GvHD) and rejection are main limitations of cord blood transplantation (CBT), more so in patients with severe inflammation or previous rejections. While rigorous T-cell depletion with antithymocyte globulin (ATG) is needed to prevent GvHD and rejection, overexposure to ATG leads to slow T-cell recovery after transplantation, especially in CBT. OBJECTIVE To evaluate high-dose, upfront ATG with individualized dosing and therapeutic drug monitoring (TDM) in pediatric CBT for patients at high risk for GvHD and rejection. STUDY DESIGN Heavily inflamed patients and patients with a recent history of rejection were eligible for individualized high-dose ATG with real-time TDM. The ATG dosing scheme was adjusted to target a post-CBT exposure of <10 AU*day/mL, while achieving a pre-CBT exposure of 60-120 AU*day/mL; exposure levels previously defined for optimal efficacy and safety in terms of reduced GvHD and rejection, respectively. Main outcomes of interest included efficacy (target exposure attainment) and safety (incidence of GvHD and rejection). Other outcomes of interest included T-cell recovery and survival. RESULTS Twenty-one patients were included ranging from 2 months to 18 years old, receiving an actual median cumulative dose of ATG of 13.3 mg/kg (range 6-30 mg/kg) starting at a median 15 days (range 12-17) prior to CBT. Dosing was adjusted in 14 patients (increased in 3 and decreased in 11 patients). Eighteen (86%) and 19 (91%) patients reached the target pre-CBT and post-CBT exposure, respectively. Cumulative incidence for acute GvHD was 34% (95% CI 23-45) and 5% (95% CI 0-10%) for grade 2-4 and grade 3-4, respectively; cumulative incidence of rejection was 9% (95% CI 2-16%). Overall survival was 75% (95% CI 65-85%). CONCLUSION Individualized high-dose ATG with TDM is feasible and safe for patients with hyperinflammation in a CBT setting. We observe high target ATG exposure attainment, good immune reconstitution (despite very high doses of ATG) and acceptable rates of GvHD and rejection.
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Affiliation(s)
- Rick Admiraal
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatrics, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - A Birgitta Versluijs
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatrics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Alwin D R Huitema
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital, Netherlands Cancer Institute, Amsterdam, the Netherlands; Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Lysette Ebskamp
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Amelia Lacna
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - C T Klaartje de Kanter
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pharmacy, Curacao Medical Center, Willemstad, Curacao
| | - Marc B Bierings
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatrics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Jaap Jan Boelens
- Transplantation and Cellular Therapies, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Caroline A Lindemans
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatrics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Stefan Nierkens
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
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Poonsombudlert K, Mott S, Miller B, Yodsuwan R, Shaikh H, Strouse C, Lochner J, Farooq U, Magalhaes‐Silverman M. Clinical outcomes of patients receiving three versus four doses of methotrexate with concomitant antithymocyte globulin in match unrelated donor allogeneic stem cell transplant: A single-center experience. EJHAEM 2024; 5:578-583. [PMID: 38895065 PMCID: PMC11182390 DOI: 10.1002/jha2.909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 06/21/2024]
Abstract
Methotrexate (MTX) doses on days +1, +3, +6, and +11 after match unrelated donor allogeneic stem cell transplant (MUD HSCT) is a common graft-versus-host disease (GVHD) prophylaxis regimen. However, the overlapping toxicity of MTX with conditioning chemotherapy sometimes warrants the omission of the fourth dose of MTX. Prior single-institution studies showed conflicting results comparing the outcomes of patients who received three versus four doses of MTX, but to our knowledge, the effect of concomitant antithymocyte globulin (ATG) has not been reported. Charts of patients who underwent MUD HSCT between 2009 and 2023 were reviewed. Patients received rabbit ATG (Thymoglobulin), given at 0.5 mg/kg on day -3, 2 mg/kg on day -2, and 2.5 mg/kg on day -1. MTX is given at 15 mg/m2 on day +1 and 10 mg/m2 on days +3, +6, and +11. Severe mucositis was the most common indication for day +11 MTX omission (82%). We identified 292 patients (116 in 3 dose cohort and 176 in 4 dose cohort). Median follow-up was 23 months (range 1-151). Patients in the 4 doses cohort were more frequently male (68% vs. 50%, p < 0.01), received a reduced intensity conditioning regimen (38.0% vs. 22%, p < 0.01), were older (median 58 vs. 54 years, p = 0.02), and received a transplant in the earlier era (median HSCT year 2014 vs. 2018, p < 0.01). A statistically significant difference was not evidenced between the cohorts for the following outcomes: acute GVHD (aGVHD) (HR 1.1, 95% CI 0.9-1.5), chronic GVHD (cGVHD) (HR 1.3, 95% CI 0.8-1.6), relapse-free survival (RFS) (HR 1.0, 95% CI 0.6-1.5), non-relapse mortality (NRM) (HR 1.4, 95% CI 0.9-2.2), and overall survival (OS) (HR 1.2, 95% CI 0.9-1.7). Both cohorts had similar median time to neutrophil engraftment at 14 days. When ATG is incorporated, omission of day +11 MTX does not significantly impact the rate of engraftment or cumulative incidence of aGVHD, cGVHD, RFS, NRM, and OS.
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Affiliation(s)
- Kittika Poonsombudlert
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Sarah Mott
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Benda Miller
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Ratdanai Yodsuwan
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Hira Shaikh
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Christopher Strouse
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Jonathan Lochner
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Umar Farooq
- Holden Comprehensive Cancer at the University of Iowa Hospitals and ClinicsIowa CityIowaUSA
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Zare Moghaddam M, Mousavi MJ, Ghotloo S. Stem cell-based therapy for systemic lupus erythematous. J Transl Autoimmun 2024; 8:100241. [PMID: 38737817 PMCID: PMC11087996 DOI: 10.1016/j.jtauto.2024.100241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/08/2024] [Accepted: 04/16/2024] [Indexed: 05/14/2024] Open
Abstract
Systemic lupus erythematosus (SLE), an autoimmune disease, is among the most prevalent rheumatic autoimmune disorders. It affects autologous connective tissues caused by the breakdown of self-tolerance mechanisms. During the last two decades, stem cell therapy has been increasingly considered as a therapeutic option in various diseases, including parkinson's disease, alzheimer, stroke, spinal cord injury, multiple sclerosis, inflammatory bowel disease, liver disease, diabete, heart disease, bone disease, renal disease, respiratory diseases, and hematological abnormalities such as anemia. This is due to the unique properties of stem cells that divide and differentiate to the specialized cells in the damaged tissues. Moreover, they impose immunomodulatory properties affecting the diseases caused by immunological abnormalities such as rheumatic autoimmune disorders. In the present manuscript, efficacy of stem cell therapy with two main types of stem cells, including mesenchymal stem cell (MSC), and hematopoietic stem cells (HSC) in animal models or human patients of SLE, has been reviewed. Taken together, MSC and HSC therapies improved the disease activity, and severity in kidney, lung, liver, and bone (improvement in the clinical manifestation). In addition, a change in the immunological parameters occurred (improvement in immunological parameters). The level of autoantibodies, including antinuclear antibody (ANA), and anti-double-stranded deoxyribonucleic acid antibodies (dsDNA Abs) reduced. A conversion of Th1/Th2 ratio (in favor of Th2), and Th17/Treg (in favor of Treg) was also detected. In spite of many advantages of MSC and HSC transplantations, including efficacy, safety, and increased survival rate of SLE patients, some complications, including recurrence of the disease, occurrence of infections, and secondary autoimmune diseases (SAD) were observed after transplantation that should be addressed in the next studies.
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Affiliation(s)
- Maryam Zare Moghaddam
- Department of Immunology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Javad Mousavi
- Department of Hematology, Faculty of Allied Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Somayeh Ghotloo
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Department of Clinical Laboratory Sciences, School of Allied Medical Sciences, Kashan University of Medical Sciences, Kashan, Iran
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6
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Herring MB, Fernandez-Pol S. Loss of CD5-positive T-cells following anti-thymocyte globulin treatment. J Hematop 2024; 17:115-116. [PMID: 38573562 DOI: 10.1007/s12308-024-00581-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/22/2024] [Indexed: 04/05/2024] Open
Affiliation(s)
- Melissa B Herring
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.
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Giordano U, Mordak-Domagała M, Sobczyk-Kruszelnicka M, Giebel S, Gil L, Dudek KD, Dybko J. Comparing the Outcomes of Matched and Mismatched Unrelated Allogeneic Hematopoietic Stem Cell Transplantation with Different Anti-Thymocyte Globulin Formulations: A Retrospective, Double-Centre Experience on Behalf of the Polish Adult Leukemia Group. Cancers (Basel) 2024; 16:1891. [PMID: 38791969 PMCID: PMC11119435 DOI: 10.3390/cancers16101891] [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: 04/17/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Despite notable advancements in immunotherapy in the past decades, allogeneic hematopoietic stem cell transplantation (allo-HCT) remains a promising, potentially curative treatment modality. Only a limited number of studies have performed a direct comparison of two prevalent rabbit anti-thymocyte globulin (r-ATG) formulations-specifically, Thymoglobuline (ATG-T, formerly Genzyme) and Grafalon (ATG-G, formerly Fresenius). The primary objective of our retrospective analysis was to compare the outcomes of adult patients undergoing matched or mismatched unrelated donor (MUD/MMUD) allo-HCT, with a graft-versus-host disease (GvHD) prophylaxis based on either ATG-T or ATG-G. A total of 87 patients who had undergone allo-HCT between 2012 and 2022 were included. We observed no significant differences between ATG-T and ATG-G concerning the occurrence of acute graft-versus-host disease (aGvHD), regardless of its severity. Conversely, chronic graft-versus-host disease (cGvHD) occurred less frequently in the ATG-T group compared to the ATG-G group (7.5% vs. 38.3%, p = 0.001). The negative impact of ATG-G on cGvHD was confirmed by multivariate analysis (HR 8.12, 95% CI 2.06-32.0, p = 0.003). Patients treated with ATG-T manifested a higher incidence of cytomegalovirus (CMV) reactivations (70% vs. 31.9%, p < 0.001), with a shorter time between transplant and CMV (<61 days, 77.8% vs. 33.3%, p = 0.008) and a higher median CMV copy number (1000 vs. 0, p = 0.004). Notably, despite a higher occurrence of CMV reactivations in the ATG-T cohort, most patients were asymptomatic compared to ATG-G (85.7% vs. 43.8%, p = 0.005). By multivariate analysis, only aGvHD had an influence on CMV reactivations (HR 0.18, 95% CI 0.04-0.75, p = 0.019). Finally, we observed no significant differences in terms of 5-year overall survival (OS) and 3-year relapse-free survival (RFS) while comparing ATG-T and ATG-G (32.0% vs. 40.3%, p = 0.423; 66.7% vs. 60.4%, p = 0.544, respectively).
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Affiliation(s)
- Ugo Giordano
- Department and Clinic of Endocrinology, Diabetes and Isotope Therapy, 50-367 Wroclaw, Poland
| | - Monika Mordak-Domagała
- Lower Silesian Center of Oncology, Pulmonology and Hematology, 53-439 Wroclaw, Poland; (M.M.-D.); (J.D.)
| | | | - Sebastian Giebel
- Maria Sklodowska-Curie National Research Institute of Oncology, 44-102 Gliwice, Poland; (M.S.-K.); (S.G.)
| | - Lidia Gil
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, 61-701 Poznań, Poland;
| | - Krzysztof D. Dudek
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland;
| | - Jarosław Dybko
- Lower Silesian Center of Oncology, Pulmonology and Hematology, 53-439 Wroclaw, Poland; (M.M.-D.); (J.D.)
- Department of Oncology and Hematology, Faculty of Medicine, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
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8
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Tian Z, Man Q, Yang Y, Guan H, Wang Y, Luo R, Wang J. Comparison of rabbit ATLG and ATG for GVHD prophylaxis in hematological malignancies with haploidentical hematopoietic stem cell transplantation. Ann Hematol 2024; 103:1729-1736. [PMID: 38538977 DOI: 10.1007/s00277-024-05724-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
Rabbit anti-human T lymphocyte globulin (ATLG) and anti-thymocyte globulin (ATG) are commonly used for graft-versus-host disease (GVHD) prophylaxis in allogeneic hematopoietic stem cell transplantation (HSCT). Yet, their efficacy and safety have seldom been compared in hematological malignancies with haploidentical HSCT. A retrospective analysis with 28 ATLG (total dosage, 20-30 mg/kg) and 18 ATG (total dosage, 8-10 mg/kg) patients were performed. The cumulative incidences of chronic GVHD and relapse were comparable between both groups. ATLG showed a trend towards a lower acute GVHD incidence (28.6% vs. 44.4%, P = 0.242) and 3-year non-relapse mortality (10.7% vs. 27.8%, P = 0.160), and had a significantly higher 3-year overall survival (OS, 64.3% vs. 33.3%, P = 0.033) and GVHD-free and relapse-free survival (GRFS, 32.1% vs. 11.1%, P = 0.045) compared with ATG. Multivariate Cox regression analysis demonstrated ATLG was independently associated with a favorable OS (hazard ratio [HR] = 0.37, 95% confidence interval [CI]: 0.16-0.86, P = 0.020) and GRFS (HR = 0.51, 95%CI: 0.26-1.00, P = 0.051). Furthermore, ATLG had a lower risk of fever (25.0% vs. 61.1%, P = 0.014) and hemorrhage cystitis (7.1% vs. 38.9%, P = 0.008) than ATG-T. In conclusion, ATLG confers more survival benefit and a better safety profile than ATG and can be used in hematological malignancies with haploidentical HSCT. Prospective designed trials with a larger sample size are warranted to confirm the results in the future.
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Affiliation(s)
- Zhengqin Tian
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China
| | - Qihang Man
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China
| | - Yixin Yang
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China
| | - Hexian Guan
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China
| | - Ying Wang
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China
| | - Rongmu Luo
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China.
- Department of Hematology, China Aerospace Science & Industry Corporation 731 Hospital, Fengtai District, Beijing, 100074, China.
| | - Jingbo Wang
- Department of Hematology, Aerospace Center Hospital, Haidian District, Beijing, 100049, China.
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9
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Piekarska A, Pawelec K, Szmigielska-Kapłon A, Ussowicz M. The state of the art in the treatment of severe aplastic anemia: immunotherapy and hematopoietic cell transplantation in children and adults. Front Immunol 2024; 15:1378432. [PMID: 38646536 PMCID: PMC11026616 DOI: 10.3389/fimmu.2024.1378432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/22/2024] [Indexed: 04/23/2024] Open
Abstract
Acquired aplastic anemia (AA) is an immune-mediated bone marrow (BM) failure where marrow disruption is driven by a cytotoxic T-cell-mediated autoimmune attack against hematopoietic stem cells. The key diagnostic challenge in children, but also in adults, is to exclude the possible underlying congenital condition and myelodysplasia. The choice of treatment options, either allogeneic hematopoietic cell transplantation (alloHCT) or immunosuppressive therapy (IST), depends on the patient's age, comorbidities, and access to a suitable donor and effective therapeutic agents. Since 2022, horse antithymocyte globulin (hATG) has been available again in Europe and is recommended for IST as a more effective option than rabbit ATG. Therefore, an update on immunosuppressive strategies is warranted. Despite an improved response to the new immunosuppression protocols with hATG and eltrombopag, some patients are not cured or remain at risk of aplasia relapse or clonal evolution and require postponed alloHCT. The transplantation field has evolved, becoming safer and more accessible. Upfront alloHCT from unrelated donors is becoming a tempting option. With the use of posttransplant cyclophosphamide, haploidentical HCT offers promising outcomes also in AA. In this paper, we present the state of the art in the management of severe AA for pediatric and adult patients based on the available guidelines and recently published studies.
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Affiliation(s)
- Agnieszka Piekarska
- Department of Hematology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Katarzyna Pawelec
- Department of Oncology, Pediatric Hematology, Clinical Transplantology and Pediatrics, Medical University of Warsaw, Warsaw, Poland
| | | | - Marek Ussowicz
- Department of Pediatric Bone Marrow Transplantation, Oncology and Hematology, Wroclaw Medical University, Wroclaw, Poland
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10
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Rodriguez-Sevilla JJ, Colla S. T-cell dysfunctions in myelodysplastic syndromes. Blood 2024; 143:1329-1343. [PMID: 38237139 DOI: 10.1182/blood.2023023166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/22/2023] [Accepted: 01/12/2024] [Indexed: 03/25/2024] Open
Abstract
ABSTRACT Escape from immune surveillance is a hallmark of cancer. Immune deregulation caused by intrinsic and extrinsic cellular factors, such as altered T-cell functions, leads to immune exhaustion, loss of immune surveillance, and clonal proliferation of tumoral cells. The T-cell immune system contributes to the pathogenesis, maintenance, and progression of myelodysplastic syndrome (MDS). Here, we comprehensively reviewed our current biological knowledge of the T-cell compartment in MDS and recent advances in the development of immunotherapeutic strategies, such as immune checkpoint inhibitors and T-cell- and antibody-based adoptive therapies that hold promise to improve the outcome of patients with MDS.
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Affiliation(s)
| | - Simona Colla
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
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11
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Zhao X, Lv W, Song K, Yao W, Li C, Tang B, Wan X, Geng L, Sun G, Qiang P, Liu H, Liu H, Sun Z. Upfront Umbilical Cord Blood Transplantation Versus Immunosuppressive Therapy for Pediatric Patients With Idiopathic Severe Aplastic Anemia. Transplant Cell Ther 2024; 30:442.e1-442.e13. [PMID: 38278182 DOI: 10.1016/j.jtct.2024.01.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/14/2023] [Accepted: 01/17/2024] [Indexed: 01/28/2024]
Abstract
Umbilical cord blood transplantation (UCBT) has been rarely reported as a first-line treatment for idiopathic severe aplastic anemia (SAA) patients lacking HLA-matched sibling donors (MSD). Our study aimed to compare the clinical outcomes of pediatric SAA patients who received UCBT and immunosuppressive therapy (IST) upfront. A retrospective analysis was performed on 43 consecutive patients who received frontline IST (n = 17) or UCBT (n = 26) between July 2017 and April 2022. The 3-year overall survival (OS) was comparable between the UCBT and IST groups (96.2% versus 100%, P = .419), while the 3-year event-free survival (EFS) was significantly better in the former than in the latter (88.5% versus 58.8%, P = .048). In the UCBT group, 24 patients achieved successful engraftment, 2 patients developed severe acute graft-versus-host disease (aGVHD), no extensive chronic GVHD (cGVHD), and a high GVHD-free, failure-free survival (GFFS) of 84.6% at 3 years. After 1 year of treatment, 12 patients in the IST group responded, while 5 patients did not achieve remission and 2 patients had disease relapse. At both 3 and 6 months after treatment, the proportion of transfusion-independent patients was higher in the UCBT group than in the IST group. Faster immune recovery and earlier transfusion independence further reduced the risk of infection and bleeding, thereby improving health-related quality of life in the UCBT-treated group. Our results suggested that UCBT as upfront therapy may be an effective and safe option for pediatric SAA patients, with favorable outcomes in experienced centers.
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Affiliation(s)
- Xuxu Zhao
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China; Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wenxiu Lv
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China; Department of Pediatrics, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Kaidi Song
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wen Yao
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Chun Li
- Department of Pediatrics, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Baolin Tang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiang Wan
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Liangquan Geng
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Guangyu Sun
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Ping Qiang
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Huilan Liu
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China; Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Hongjun Liu
- Department of Hematology and Oncology, Anhui Provincial Children's Hospital (Anhui Hospital, Pediatric Hospital of Fudan University), Hefei, Anhui, China; Department of Pediatrics, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Zimin Sun
- Department of Hematology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China; Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
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12
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Bartz-Overman C, Li S, Puligandla B, Colaco N, Steiner J, Masha L. Two case reports of fulminant giant cell myocarditis treated with rabbit anti-thymocyte globulin. Eur Heart J Case Rep 2024; 8:ytae128. [PMID: 38567279 PMCID: PMC10986390 DOI: 10.1093/ehjcr/ytae128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 02/28/2024] [Accepted: 03/08/2024] [Indexed: 04/04/2024]
Abstract
Background Giant cell myocarditis (GCM) is an inflammatory form of acute heart failure with high rates of cardiac transplantation or death. Standard acute treatment includes multi-drug immunosuppressive regimens. There is a small but growing number of case reports utilizing rabbit anti-thymocyte globulin in severe cases. Case summary Two cases are presented with similar presentations and clinical courses. Both are middle-aged patients with no significant past medical history, who presented with new acute decompensated heart failure that quickly progressed to cardiogenic shock requiring inotropic and mechanical circulatory support. Both underwent endomyocardial biopsies that diagnosed GCM. Both were treated with a multi-agent immunosuppressive regimen, notably including rabbit anti-thymocyte globulin, with subsequent resolution of shock and recovery of left ventricular ejection fraction. Both remain transplant-free and without ventricular arrhythmias at 7 months and 26 months, respectively. Discussion In aggregate, these cases are typical of GCM. They add to growing observational data that upfront rabbit anti-thymocyte globulin may reduce morbidity and mortality in GCM, including potentially preventing the need for complex interventions like orthotopic heart transplantation.
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Affiliation(s)
- Colin Bartz-Overman
- Department of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Sarah Li
- Department of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Balaram Puligandla
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Nalini Colaco
- Knight Cardiovascular Institute, Oregon Health & Science University, 3303 S. Bond Avenue, Portland, OR 97239, USA
| | - Johannes Steiner
- Knight Cardiovascular Institute, Oregon Health & Science University, 3303 S. Bond Avenue, Portland, OR 97239, USA
| | - Luke Masha
- Knight Cardiovascular Institute, Oregon Health & Science University, 3303 S. Bond Avenue, Portland, OR 97239, USA
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13
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Shi Z, Gao F, Ding D, Wu H, Shi J, Luo Y, Yu J, Tan Y, Lai X, Liu L, Fu H, Huang H, Zhao Y. Outcomes of haploidentical peripheral blood stem cell transplantation following myeloablative conditioning using two types of rabbit ATG: a propensity score-matched analysis. Ann Hematol 2024; 103:1353-1362. [PMID: 38430226 DOI: 10.1007/s00277-024-05658-3] [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: 09/21/2023] [Accepted: 02/11/2024] [Indexed: 03/03/2024]
Abstract
During hematopoietic stem cell transplantation (HSCT), ATG depletes T cells in-vivo to improve engraftment and prevent graft-versus-host disease (GVHD). Here, we compared the clinical efficacy of two different types of ATGs: thymoglobulin and anti-human T-lymphocyte immunoglobulin (Grafalon). A total of 469 patients who received haploidentical transplantation were enrolled in this retrospective study. We applied a propensity score (PS)-matched analysis and 209 patients were assigned to each group. Clinical outcomes were compared between two groups and primary outcome was overall survival (OS). There was no significant difference in OS between two groups. Within the first 180 days after HSCT, Grafalon was associated with lower incidences of Epstein-Barr virus (EBV) viremia (31.6 vs. 54.5%, P < 0.0001) and cytomegalovirus viremia (CMV) viremia (54.5 vs. 67.9%, P = 0.005) compared to thymoglobulin. Patients receiving Grafalon had a higher rate of moderate/severe chronic GVHD (26.3 vs. 18.2%, P = 0.046). However, the incidences of engraftment failure, grade II-IV acute GVHD, relapse, non-relapse mortality (NRM), and GVHD-free relapse-free survival (GRFS) did not differ greatly between groups. In the subgroup analysis, Grafalon improved the OS of lymphoid malignancies with young ages (< 40 years old) (HR, 0.55; P = 0.04) or with a high/very high disease risk index (HR, 0.36; P = 0.04). In the myeloid cohort, Grafalon reduced NRM in the patients who received non-female for male transplantation grafts (HR, 0.17; P = 0.02). Our results suggest the two types of ATG may differentially influence transplant outcomes and it may optimize ATG selection according to the condition of patients.
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Affiliation(s)
- Zhuoyue Shi
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Fei Gao
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Dang Ding
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hengwei Wu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Jimin Shi
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Yi Luo
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Jian Yu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Yamin Tan
- Department of Hematology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
| | - Xiaoyu Lai
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Lizhen Liu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - Huarui Fu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Liangzhu Laboratory, Hangzhou, Zhejiang, China
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China
| | - He Huang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Liangzhu Laboratory, Hangzhou, Zhejiang, China.
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China.
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China.
| | - Yanmin Zhao
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Liangzhu Laboratory, Hangzhou, Zhejiang, China.
- Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang, China.
- Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy, Hangzhou, Zhejiang, China.
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14
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Yu PJ, Zhou M, Liu Y, Du J. Senescent T Cells in Age-Related Diseases. Aging Dis 2024:AD.2024.0219. [PMID: 38502582 DOI: 10.14336/ad.2024.0219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/18/2024] [Indexed: 03/21/2024] Open
Abstract
Age-induced alterations in human immunity are often considered deleterious and are referred to as immunosenescence. The immune system monitors the number of senescent cells in the body, while immunosenescence may represent the initiation of systemic aging. Immune cells, particularly T cells, are the most impacted and involved in age-related immune function deterioration, making older individuals more prone to different age-related diseases. T-cell senescence can impact the effectiveness of immunotherapies that rely on the immune system's function, including vaccines and adoptive T-cell therapies. The research and practice of using senescent T cells as therapeutic targets to intervene in age-related diseases are in their nascent stages. Therefore, in this review, we summarize recent related literature to investigate the characteristics of senescent T cells as well as their formation mechanisms, relationship with various aging-related diseases, and means of intervention. The primary objective of this article is to explore the prospects and possibilities of therapeutically targeting senescent T cells, serving as a valuable resource for the development of immunotherapy and treatment of age-related diseases.
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15
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Zhao XC, Ju B, Xiu NN, Sun XY, Meng FJ. When inflammatory stressors dramatically change, disease phenotypes may transform between autoimmune hematopoietic failure and myeloid neoplasms. Front Immunol 2024; 15:1339971. [PMID: 38426096 PMCID: PMC10902444 DOI: 10.3389/fimmu.2024.1339971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
Aplastic anemia (AA) and hypoplastic myelodysplastic syndrome are paradigms of autoimmune hematopoietic failure (AHF). Myelodysplastic syndrome and acute myeloid leukemia are unequivocal myeloid neoplasms (MNs). Currently, AA is also known to be a clonal hematological disease. Genetic aberrations typically observed in MNs are detected in approximately one-third of AA patients. In AA patients harboring MN-related genetic aberrations, a poor response to immunosuppressive therapy (IST) and an increased risk of transformation to MNs occurring either naturally or after IST are predicted. Approximately 10%-15% of patients with severe AA transform the disease phenotype to MNs following IST, and in some patients, leukemic transformation emerges during or shortly after IST. Phenotypic transformations between AHF and MNs can occur reciprocally. A fraction of advanced MN patients experience an aplastic crisis during which leukemic blasts are repressed. The switch that shapes the disease phenotype is a change in the strength of extramedullary inflammation. Both AHF and MNs have an immune-active bone marrow (BM) environment (BME). In AHF patients, an inflamed BME can be evoked by infiltrated immune cells targeting neoplastic molecules, which contributes to the BM-specific autoimmune impairment. Autoimmune responses in AHF may represent an antileukemic mechanism, and inflammatory stressors strengthen antileukemic immunity, at least in a significant proportion of patients who have MN-related genetic aberrations. During active inflammatory episodes, normal and leukemic hematopoieses are suppressed, which leads to the occurrence of aplastic cytopenia and leukemic cell regression. The successful treatment of underlying infections mitigates inflammatory stress-related antileukemic activities and promotes the penetration of leukemic hematopoiesis. The effect of IST is similar to that of treating underlying infections. Investigating inflammatory stress-powered antileukemic immunity is highly important in theoretical studies and clinical practice, especially given the wide application of immune-activating agents and immune checkpoint inhibitors in the treatment of hematological neoplasms.
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Affiliation(s)
- Xi-Chen Zhao
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Bo Ju
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Nuan-Nuan Xiu
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Xiao-Yun Sun
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao, Shandong, China
| | - Fan-Jun Meng
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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16
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Woo CG, Kim JM. Cytokine storm syndrome after anti-thymoglobulin infusion in a cynomolgus monkey with systemic lymphadenopathy caused by follicular hyperplasia: A case report. J Med Primatol 2024; 53:e12680. [PMID: 37849072 DOI: 10.1111/jmp.12680] [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: 04/27/2023] [Revised: 08/30/2023] [Accepted: 10/09/2023] [Indexed: 10/19/2023]
Abstract
Nonhuman primates are widely used in transplantation research as preclinical xeno- or allo-transplantation models. Rabbit anti-thymoglobulin (ATG) is often used for T-cell depletion as an immunosuppressant. T-cell depletion can cause a secondary cytokine storm syndrome that can be minimized/prevented by a prophylactic administration of systemic corticosteroids and antihistamines. We report a case of death due to CSS in a cynomolgus monkey with follicular hyperplasia-induced systemic lymphadenopathy after ATG administration. A 6-year-old female cynomolgus monkey was rendered diabetic and then transplanted with a genetically modified porcine pancreatic islets (PPI) (50 000 IEQ/kg) through the portal vein 22 days later without immunosuppressant. Because graft function was not comparable, we planned re-transplantation of PPI. For re-transplantation of the PPI, we performed an intravenous (IV) ATG infusion for inductive immunosuppression. The monkey died 3 h and 30 min after ATG administration despite cardiopulmonary resuscitation. Systemic lymphadenopathy was observed on submandibular, axillary, inguinal, foregut, colic, and hilar lymph nodes, and splenomegaly was also observed on necropsy. Histopathologic examination of the lymph node revealed follicular hyperplasia. The IL-6 level was higher after ATG infusion compared to before ATG infusion (before vs. after ATG infusion; 14.9 vs. >5000 pg/mL). The death of the cynomolgus monkey was caused by severe CSS because of apoptosis of B cells in the systemic lymph nodes caused by the ATG administration. A thorough physical examination of palpable lymph nodes and pre-ATG sonographic or computed tomographic screening could have identified lymphadenopathy, potentially preventing its infusion and reducing mortality risk.
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Affiliation(s)
- Chang Gok Woo
- Department of Pathology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Jong-Min Kim
- Seoul National University Medical Research Center, Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Department of Animal Health, Cheongju University College of Health and Medical Sciences, Cheongju, Korea
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17
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Xu Z, Zhou X, Zhao X, Lu X, Wang H. Effectiveness of in vivo T-cell-depleted regimen containing porcine anti-lymphocyte globulin or rabbit anti-thymocyte globulin in preventing acute graft-versus-host disease after haploidentical haematopoietic stem cell transplantation. Br J Haematol 2024; 204:283-291. [PMID: 37984846 DOI: 10.1111/bjh.19205] [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: 08/29/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/22/2023]
Abstract
To compare the clinical efficacy of porcine anti-lymphocyte globulin (p-ALG) and rabbit anti-thymocyte globulin (r-ATG) in the treatment of haematological malignancies using haploidentical haematopoietic stem cell transplantation (haplo-HSCT), this study was conducted. The incidences of neutrophil and platelet engraftment, respectively, were 100%, 93.6% and 94.4%; 100%, 93.6% and 90.3% in p-ALG 75 mg/kg (n = 57), p-ALG 90 mg/kg (n = 49), and r-ATG 7.5 mg/kg (n = 72). The median time to neutrophil engraftment and platelet engraftment were 11, 12 and 12 days (p = 0.032); 13, 14 and 13 days (p = 0.013), respectively. The incidence of grades II-IV acute graft-versus-host disease and cumulative incidence of chronic graft-versus-host disease were 16.7% versus 12.5% versus 13.3% (p = 0.817) and 14.7% versus 12.1% versus 19.5% in p-ALG 75 mg/kg, p-ALG 90 mg/kg and r-ATG groups. Notably, the cytomegalovirus infection rate in the p-ALG 75 mg/kg group was significantly lower than the other two groups. The cumulative incidence of 2-year relapse and 2-year overall survival rates were similar (p = 0.901, p = 0.497). The lower dose of p-ALG (75 mg/kg) had a similar efficacy and safety profile compared with r-ATG (7.5 mg/kg) in the setting of haplo-HSCT. Therefore, p-ALG (75 mg/kg) may be an appropriate alternative to r-ATG in the conditioning regimen of haplo-HSCT.
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Affiliation(s)
- Ziwei Xu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xi Zhou
- Institute of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyan Zhao
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuan Lu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huafang Wang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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18
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Lee JS, Seo J, Kim S, Rahman MM, Shin HJ. Entelon150 ® ( Vitis vinifera Seed Extract) Attenuates Degenerative Changes in Intravascular Valve Prostheses in Rabbits. Korean Circ J 2024; 54:43-56. [PMID: 37973973 PMCID: PMC10784610 DOI: 10.4070/kcj.2023.0120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/03/2023] [Accepted: 08/16/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The therapeutic strategy for inflammation and degenerative calcification is of utmost importance for bioprosthetic heart valve (BHV) implanted patients. The purpose of this study was to compare the anti-inflammatory and anti-calcification effects of Entelon150® (grape seed extract), losartan, and rosuvastatin, in a rabbit model of intravascular BHV leaflet implantation in bovine pericardium. METHODS A total of 28 rabbits were implanted with BHV leaflet in the external jugular veins. The Entelon150® group was administered 7.7 mg/kg Entelon150® twice daily for 6 weeks after surgery. The losartan and rosuvastatin groups received 5.14 mg/kg and 1 mg/kg, respectively, once per day. The control group received 1 ml of saline once daily. And then, calcium concentration was measured in the implanted BHV, and histological and molecular analyses were performed on the surrounding tissues. RESULTS The calcium content of the implanted tissue in the Entelon150® group (0.013±0.004 mg/g) was lower than that in the control group (0.066±0.039 mg/g) (p=0.008). The losartan (0.024±0.016 mg/g, p=0.032) and rosuvastatin (0.022±0.011 mg/g, p=0.032) groups had lower calcium content than the control group, and higher tendency than the Entelon150® group. Immunohistochemistry revealed that the expressions of bone morphogenic protein 2 (BMP2), S-100, and angiotensin II type 1 receptor in the Entelon150® group showed lower tendency than those in the control group. The protein expression levels of BMP2 were reduced in the Entelon150® group compared with those in the control group. CONCLUSIONS Entelon150® exhibited a significant effect, similar to other drugs, in reducing calcification and inflammation in the intravascular bovine pericardium.
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Affiliation(s)
- Jue Seong Lee
- Department of Pediatrics, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - JungHyeok Seo
- Department of Surgery, College of Veterinary Medicine, Jeonbuk National University, Iksan, Korea
| | - Sokho Kim
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Korea
| | - Md Mahbubur Rahman
- Department of Physiology, Gachon University College of Medicine, Incheon, Korea
| | - Hong Ju Shin
- Department of Thoracic and Cardiovascular Surgery, Myoungju Hospital, Yongin, Korea.
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Acharya S, Lama S, Kanigicherla DA. Anti-thymocyte globulin for treatment of T-cell-mediated allograft rejection. World J Transplant 2023; 13:299-308. [PMID: 38174145 PMCID: PMC10758678 DOI: 10.5500/wjt.v13.i6.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/01/2023] [Accepted: 11/17/2023] [Indexed: 12/15/2023] Open
Abstract
Anti-thymocyte globulin (ATG) is a pivotal immunosuppressive therapy utilized in the management of T-cell-mediated rejection and steroid-resistant rejection among renal transplant recipients. Commercially available as Thymoglobulin (rabbit-derived, Sanofi, United States), ATG-Fresenius S (rabbit-derived), and ATGAM (equine-derived, Pfizer, United States), these formulations share a common mechanism of action centered on their interaction with cell surface markers of immune cells, imparting immunosuppressive effects. Although the prevailing mechanism predominantly involves T-cell depletion via the com plement-mediated pathway, alternate mechanisms have been elucidated. Optimal dosing and treatment duration of ATG have exhibited variance across ran domised trials and clinical reports, rendering the establishment of standardized guidelines a challenge. The spectrum of risks associated with ATG administration spans from transient adverse effects such as fever, chills, and skin rash in the acute phase to long-term concerns related to immunosuppression, including susceptibility to infections and malignancies. This comprehensive review aims to provide a thorough exploration of the current understanding of ATG, encom passing its mechanism of action, clinical utility in the treatment of acute renal graft rejections, specifically steroid-resistant cases, efficacy in rejection episode reversal, and a synthesis of findings from different eras of maintenance immunosuppression. Additionally, it delves into the adverse effects associated with ATG therapy and its impact on long-term graft function. Furthermore, the review underscores the existing gaps in evidence, particularly in the context of the Banff classification of rejections, and highlights the challenges faced by clinicians when navigating the available literature to strike the optimal balance between the risks and benefits of ATG utilization in renal transplantation.
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Affiliation(s)
- Sumit Acharya
- Department of Nephrology, Shahid Dharmabhakta National Transplant Center, Bhaktapur 44800, Nepal
| | - Suraj Lama
- Department of Nephrology, Shahid Dharmabhakta National Transplant Center, Bhaktapur 44800, Nepal
| | - Durga Anil Kanigicherla
- Department of Renal Medicine, Manchester University NHS Foundation Trust, Manchester M13 9WL, United Kingdom
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20
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Serio B, Giudice V, Selleri C. All Roads Lead to Interferon-γ: From Known to Untraveled Pathways in Acquired Aplastic Anemia. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2170. [PMID: 38138273 PMCID: PMC10744863 DOI: 10.3390/medicina59122170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
Bone marrow failure (BMF) syndromes are a heterogeneous group of benign hematological conditions with common clinical features including reduced bone marrow cellularity and peripheral blood cytopenias. Acquired aplastic anemia (AA) is caused by T helper(Th)1-mediated immune responses and cytotoxic CD8+ T cell-mediated autologous immune attacks against hematopoietic stem and progenitor cells (HSPCs). Interferon-γ (IFNγ), tumor necrosis factor-α, and Fas-ligand are historically linked to AA pathogenesis because they drive Th1 and cytotoxic T cell-mediated responses and can directly induce HSPC apoptosis and differentiation block. The use of omics technologies has amplified the amount of data at the single-cell level, and knowledge on AA, and new scenarios, have been opened on "old" point of view. In this review, we summarize the current state-of-art of the pathogenic role of IFNγ in AA from initial findings to novel evidence, such as the involvement of the HIF-1α pathway, and how this knowledge can be translated in clinical practice.
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Affiliation(s)
- Bianca Serio
- Department of Medicine, Surgery, and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (B.S.); (C.S.)
| | - Valentina Giudice
- Department of Medicine, Surgery, and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (B.S.); (C.S.)
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
| | - Carmine Selleri
- Department of Medicine, Surgery, and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy; (B.S.); (C.S.)
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, 84131 Salerno, Italy
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21
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Ling L, De C, Spagnuolo RA, Begum N, Falcinelli SD, Archin NM, Kovarova M, Silvestri G, Wahl A, Margolis DM, Garcia JV. Transient CD4+ T cell depletion during suppressive ART reduces the HIV reservoir in humanized mice. PLoS Pathog 2023; 19:e1011824. [PMID: 38055722 PMCID: PMC10699604 DOI: 10.1371/journal.ppat.1011824] [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: 09/21/2023] [Accepted: 11/14/2023] [Indexed: 12/08/2023] Open
Abstract
Lifelong treatment is required for people living with HIV as current antiretroviral therapy (ART) does not eradicate HIV infection. Latently infected cells are essentially indistinguishable from uninfected cells and cannot be depleted by currently available approaches. This study evaluated antibody mediated transient CD4+ T cell depletion as a strategy to reduce the latent HIV reservoir. Anti-CD4 antibodies effectively depleted CD4+ T cells in the peripheral blood and tissues of humanized mice. We then demonstrate that antibody-mediated CD4+ T cell depletion of HIV infected ART-suppressed animals results in substantial reductions in cell-associated viral RNA and DNA levels in peripheral blood cells over the course of anti-CD4 antibody treatment. Recovery of CD4+ T cells was observed in all tissues analyzed except for the lung 26 days after cessation of antibody treatment. After CD4+ T cell recovery, significantly lower levels of cell-associated viral RNA and DNA were detected in the tissues of anti-CD4 antibody-treated animals. Further, an 8.5-fold reduction in the levels of intact HIV proviral DNA and a 3.1-fold reduction in the number of latently infected cells were observed in anti-CD4-antibody-treated animals compared with controls. However, there was no delay in viral rebound when ART was discontinued in anti-CD4 antibody-treated animals following CD4+ T cell recovery compared with controls. Our results suggest that transient CD4+ T cell depletion, a long-standing clinical intervention that might have an acceptable safety profile, during suppressive ART can reduce the size of the HIV reservoir in humanized mice.
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Affiliation(s)
- Lijun Ling
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Chandrav De
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Rae Ann Spagnuolo
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Nurjahan Begum
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Shane D. Falcinelli
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- UNC HIV Cure Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Nancie M. Archin
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- UNC HIV Cure Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Martina Kovarova
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Guido Silvestri
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Angela Wahl
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - David M. Margolis
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- UNC HIV Cure Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - J. Victor Garcia
- International Center for the Advancement of Translational Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Center for AIDS Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
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22
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Opałka B, Żołnierczuk M, Grabowska M. Immunosuppressive Agents-Effects on the Cardiovascular System and Selected Metabolic Aspects: A Review. J Clin Med 2023; 12:6935. [PMID: 37959400 PMCID: PMC10647341 DOI: 10.3390/jcm12216935] [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: 10/13/2023] [Revised: 10/28/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
The widespread use of immunosuppressive drugs makes it possible to reduce inflammation in autoimmune diseases, as well as prevent transplant rejection in organ recipients. Despite their key action in blocking the body's immune response, these drugs have many side effects. These actions primarily affect the cardiovascular system, and the incidence of complications in patients using immunosuppressive drugs is significant, being associated with a higher incidence of cardiovascular incidents such as myocardial infarction and stroke. This paper analyzes the mechanisms of action of commonly used immunosuppressive drugs and their impact on the cardiovascular system. The adverse effect of immunosuppressive drugs is associated with toxicity within the cardiovascular system, which may be a problem in the clinical management of patients after transplantation. Immunosuppressants act on the cardiovascular system in a variety of ways, including fibrosis and myocardial remodeling, endothelium disfunction, hypertension, atherosclerosis, dyslipidemia or hyperglycaemia, metabolic syndrome, and hyperuricemia. The use of multidrug protocols makes it possible to develop regimens that can reduce the incidence of cardiovascular events. A better understanding of their mechanism of action and the range of complications could enable physicians to select the appropriate therapy for a given patient, as well as to reduce complications and prolong life.
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Affiliation(s)
- Bianka Opałka
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland;
| | - Michał Żołnierczuk
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University, 72-010 Szczecin, Poland;
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland;
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23
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Duléry R, Brissot E, Mohty M. Combining post-transplant cyclophosphamide with antithymocyte globulin for graft-versus-host disease prophylaxis in hematological malignancies. Blood Rev 2023; 62:101080. [PMID: 37085459 DOI: 10.1016/j.blre.2023.101080] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 04/23/2023]
Abstract
In search of an ideal partner or alternative to conventional immunosuppressive agents, rabbit anti-thymocyte globulin (ATG) and, more recently, post-transplant cyclophosphamide (PT-Cy) have both emerged as valid and efficient options for preventing graft-versus-host disease (GvHD). To further reduce the risk of GvHD, strategies combining ATG and PT-Cy have recently been investigated. In a haploidentical setting, retrospective studies suggest that combining PT-Cy and ATG may result in a lower incidence of chronic GvHD without increasing the risks of infection or relapse, when compared to PT-Cy without ATG. In haploidentical or unrelated donor settings, adding reduced doses of PT-Cy to ATG may reduce the risk of acute and chronic GvHD and improve survival, particularly GvHD-free, relapse-free survival (GRFS), when compared to ATG without PT-Cy. Overall, the combination of PT-Cy and ATG is a safe and promising approach for patients with hematological malignancies undergoing allogeneic hematopoietic stem cell transplantation (HSCT).
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Affiliation(s)
- Rémy Duléry
- Sorbonne University, Department of Clinical Hematology and Cellular Therapy, Saint Antoine Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; INSERM, UMRs 938, Centre de recherche Saint Antoine (CRSA), Paris, France
| | - Eolia Brissot
- Sorbonne University, Department of Clinical Hematology and Cellular Therapy, Saint Antoine Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; INSERM, UMRs 938, Centre de recherche Saint Antoine (CRSA), Paris, France
| | - Mohamad Mohty
- Sorbonne University, Department of Clinical Hematology and Cellular Therapy, Saint Antoine Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France; INSERM, UMRs 938, Centre de recherche Saint Antoine (CRSA), Paris, France.
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24
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Tavakoli F, Dalil D, Yaghoubi F, Hosseini SM. Guillain-Barre syndrome after antithymocyte globulin administration in a kidney transplant recipient: A case report and literature review. Clin Case Rep 2023; 11:e8184. [PMID: 38028101 PMCID: PMC10651983 DOI: 10.1002/ccr3.8184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/07/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
This report describes a rare case of developing Guillain-Barre syndrome (GBS) following receiving rabbit antithymocyte globulin (ATG) after kidney transplantation to prevent acute allograft rejection in a 34-year-old man. The patient presented severe pain in the right temporomandibular joint, fever, chills, myalgia, polyarthralgia, and bone pain. Twelve hours later, he developed quadriplegia, paresthesia, and a limited range of active motions in all extremities. No antecedent viral or bacterial infection was identified. The EMG/NCV evaluation displayed acute inflammatory sensory-motor polyneuropathy. After the administration of GBS treatment, the neurologic symptoms started to improve. Over a few days, the reflexes came back completely, and the patient was able to walk. To our knowledge, this is the second case report of ATG-related GBS after kidney transplantation.
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Affiliation(s)
- Farnaz Tavakoli
- Nephrology Research Center, Shariati HospitalTehran University of Medical SciencesTehranIran
| | - Davood Dalil
- Nephrology Research Center, Shariati HospitalTehran University of Medical SciencesTehranIran
- Student Research Committee, Faculty of MedicineShahed UniversityTehranIran
| | - Fatemeh Yaghoubi
- Nephrology Research Center, Shariati HospitalTehran University of Medical SciencesTehranIran
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25
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Bos S, Pradère P, Beeckmans H, Zajacova A, Vanaudenaerde BM, Fisher AJ, Vos R. Lymphocyte Depleting and Modulating Therapies for Chronic Lung Allograft Dysfunction. Pharmacol Rev 2023; 75:1200-1217. [PMID: 37295951 PMCID: PMC10595020 DOI: 10.1124/pharmrev.123.000834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/27/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023] Open
Abstract
Chronic lung rejection, also called chronic lung allograft dysfunction (CLAD), remains the major hurdle limiting long-term survival after lung transplantation, and limited therapeutic options are available to slow the progressive decline in lung function. Most interventions are only temporarily effective in stabilizing the loss of or modestly improving lung function, with disease progression resuming over time in the majority of patients. Therefore, identification of effective treatments that prevent the onset or halt progression of CLAD is urgently needed. As a key effector cell in its pathophysiology, lymphocytes have been considered a therapeutic target in CLAD. The aim of this review is to evaluate the use and efficacy of lymphocyte depleting and immunomodulating therapies in progressive CLAD beyond usual maintenance immunosuppressive strategies. Modalities used include anti-thymocyte globulin, alemtuzumab, methotrexate, cyclophosphamide, total lymphoid irradiation, and extracorporeal photopheresis, and to explore possible future strategies. When considering both efficacy and risk of side effects, extracorporeal photopheresis, anti-thymocyte globulin and total lymphoid irradiation appear to offer the best treatment options currently available for progressive CLAD patients. SIGNIFICANCE STATEMENT: Effective treatments to prevent the onset and progression of chronic lung rejection after lung transplantation are still a major shortcoming. Based on existing data to date, considering both efficacy and risk of side effects, extracorporeal photopheresis, anti-thymocyte globulin, and total lymphoid irradiation are currently the most viable second-line treatment options. However, it is important to note that interpretation of most results is hampered by the lack of randomized controlled trials.
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Affiliation(s)
- Saskia Bos
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
| | - Pauline Pradère
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
| | - Hanne Beeckmans
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
| | - Andrea Zajacova
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
| | - Bart M Vanaudenaerde
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
| | - Andrew J Fisher
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
| | - Robin Vos
- Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom (S.B., P.P., A.J.F.); Institute of Transplantation, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, United Kingdom (S.B., A.J.F.); Hôpital Marie Lannelongue, Groupe Hospitalier Paris Saint Joseph and Paris Saclay University, Department of Respiratory Diseases, Paris, France (P.P.); Department of CHROMETA, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium (H.B., B.M.V., R.V.); Prague Lung Transplant Program, University Hospital Motol, Department of Pneumology, Prague, Czech Republic (A.Z.); and University Hospitals Leuven, Department of Respiratory Diseases, Leuven, Belgium (R.V.)
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26
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Xu ZL, Huang XJ. Haploidentical transplants with a G-CSF/ATG-based protocol: Experience from China. Blood Rev 2023; 62:101035. [PMID: 36404244 DOI: 10.1016/j.blre.2022.101035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/05/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Haploidentical donor stem cell transplantation (haplo-SCT) has made great advances in recent decades. The granulocyte colony-stimulating factor (G-CSF)- and antithymocyte globulin (ATG)-based protocol, which is known as the Beijing Protocol, represents one of the current T-cell repletion strategies in haplo-SCT. The key elements of the Beijing Protocol for graft versus host disease (GvHD) prophylaxis include G-CSF inducing T-cell tolerance and altering graft cell components, as well as ATG administration exerting an immunoregulatory effect for intensive prophylaxis. This review will summarize the GvHD incidence, the underlying novel mechanism for GvHD prophylaxis, how to optimize GvHD prophylaxis, and the recent advances of the Beijing Protocol, mainly focusing on the issues of GvHD.
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Affiliation(s)
- Zheng-Li Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.
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27
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Li X, Yang J, Cai Y, Huang C, Xu X, Qiu H, Niu J, Zhou K, Zhang Y, Xia X, Wei Y, Shen C, Tong Y, Dong B, Wan L, Song X. Low-dose anti-thymocyte globulin plus low-dose post-transplant cyclophosphamide-based regimen for prevention of graft-versus-host disease after haploidentical peripheral blood stem cell transplants: a large sample, long-term follow-up retrospective study. Front Immunol 2023; 14:1252879. [PMID: 37954615 PMCID: PMC10639171 DOI: 10.3389/fimmu.2023.1252879] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/12/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction The novel low-dose anti-thymocyte (ATG, 5 mg/kg) plus low-dose post-transplant cyclophosphamide (PTCy, 50 mg/kg) (low-dose ATG/PTCy)-based regimen had promising activity for prevention of graft-versus-host disease (GVHD) in haploidentical-peripheral blood stem cell transplantation (haplo-PBSCT), but its impacts on long-term outcomes remain to be defined. Methods We performed a large sample, long-term follow-up retrospective study to evaluate its efficacy for GVHD prophylaxis. Results The study enrolled 260 patients, including 162 with myeloid malignancies and 98 with lymphoid malignancies. The median follow-up time was 27.0 months. For the entire cohort, the cumulative incidences (CIs) of grade II-IV and III-IV acute GVHD (aGVHD) by 180 days were 13.46% (95% CI, 9.64%-17.92%) and 5.77% (95% CI, 3.37%-9.07%); while total and moderate/severe chronic GVHD (cGVHD) by 2 years were 30.97% (95% CI, 25.43%-36.66%) and 18.08% (95% CI, 13.68%-22.98%), respectively. The 2-year overall survival (OS), relapse-free survival (RFS), GVHD-free, relapse-free survival (GRFS), non-relapse mortality (NRM), and CIs of relapse were 60.7% (95% CI, 54.8%-67.10%), 58.1% (95% CI, 52.2%-64.5%), 50.6% (95% CI, 44.8-57.1%), 23.04% (95% CI, 18.06%-28.40%), and 18.09% (95% CI, 14.33%-23.97%, respectively. The 1-year CIs of cytomegalovirus (CMV) and Epstein-Barr virus (EBV) reactivation were 43.46% (95% CI, 37.39%-49.37%) and 18.08% (95% CI, 13.68%-22.98%), respectively. In multivariate analysis, the disease status at transplantation was associated with inferior survivor outcomes for all patients and myeloid and lymphoid malignancies, while cGVHD had superior outcomes for all patients and myeloid malignancies, but not for lymphoid malignancies. Discussion The results demonstrated that the novel regimen could effectively prevent the occurrence of aGVHD in haplo-PBSCT.
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Affiliation(s)
- Xingying Li
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Jun Yang
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Yu Cai
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Chongmei Huang
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Xiaowei Xu
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Huiying Qiu
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Jiahua Niu
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Kun Zhou
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Ying Zhang
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Xinxin Xia
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Yu Wei
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Chang Shen
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Yin Tong
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Baoxia Dong
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Liping Wan
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
| | - Xianmin Song
- Department of Hematology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee (STCSM), Shanghai, China
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Chiu YH, Drijver A, Admiraal R, van Rhenen A, Nierkens S, van Laar JM, Spierings J. Anti-thymocyte globulin exposure in patients with diffuse cutaneous systemic sclerosis undergoing autologous haematopoietic stem cell transplantation. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2023; 8:241-246. [PMID: 37744043 PMCID: PMC10515999 DOI: 10.1177/23971983231188232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/28/2023] [Indexed: 09/26/2023]
Abstract
Introduction Autologous haematopoietic stem cell transplantation improves event-free survival and lung function and reduces skin thickening in patients with progressive diffuse cutaneous systemic sclerosis. Anti-thymocyte globulin is a key lymphoablative constituent of conditioning protocols and is administered in a weight-based dosage. However, whether anti-thymocyte globulin exposure contributes to response to autologous haematopoietic stem cell transplantation and lymphocyte reconstitution in diffuse cutaneous systemic sclerosis patients is unknown. We aimed to explore the relationship between anti-thymocyte globulin exposure, lymphocyte reconstitution and treatment response in diffuse cutaneous systemic sclerosis patients undergoing autologous haematopoietic stem cell transplantation. Methods A retrospective cohort of 15 diffuse cutaneous systemic sclerosis patients undergoing autologous haematopoietic stem cell transplantation was performed. Clinical characteristics and routine laboratory results were retrieved from electronic medical records. Anti-thymocyte globulin concentrations were measured in cryopreserved plasma samples at four time points (day 1 and week 1, 2 and 4) after stem cell reinfusion. Anti-thymocyte globulin exposure was estimated using a validated population pharmacokinetic model. Results During a median follow-up of 45 months (interquartile range 19-66), 11 (73%) patients had a treatment response, and 4 (27%) were non-responders. Although all patients received the same weight-based anti-thymocyte globulin dosage, 7.5 mg/kg divided over 3 days, anti-thymocyte globulin exposure varied. Anti-thymocyte globulin exposure was higher in responders than in non-responders (163 AU*day/mL (interquartile range 153-183) and 137 AU*day/mL (interquartile range 101-149), respectively, p = .026). Anti-thymocyte globulin exposure was not correlated with lymphocyte reconstitution or infection rate. Conclusion Weight-based dosing of anti-thymocyte globulin results in variable anti-thymocyte globulin exposure and treatment response across individuals.
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Affiliation(s)
- Yu-Hsiang Chiu
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Division of Rheumatology/Immunology/Allergy, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei
| | - Anouk Drijver
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rick Admiraal
- Princess Máxima Center for Paediatric Oncology, Utrecht, The Netherlands
| | - Anna van Rhenen
- Department of Haematology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Stefan Nierkens
- Princess Máxima Center for Paediatric Oncology, Utrecht, The Netherlands
- Centre for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jacob M van Laar
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Julia Spierings
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
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Liu X, Huang C, Cao X, Yang X, Li S, Jiang S, Lin W, Liu L, Ding X, Tang X, Miao L. A fully validated flow cytometry method to quantitatively analyze active rATG in human serum and its application in pharmacokinetic study for therapeutic drug monitoring. J Pharm Biomed Anal 2023; 234:115483. [PMID: 37454500 DOI: 10.1016/j.jpba.2023.115483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 05/14/2023] [Accepted: 05/23/2023] [Indexed: 07/18/2023]
Abstract
Rabbit anti-thymocyte globulin (rATG) has been widely used to prevent graft-versus-host disease (GvHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). The therapeutic window of rATG is narrow, and it may increase the risk of relapse, viral reactivation, delayed immune reconstitution and GvHD when overexposed or underexposed. Therefore, a reliable method for detecting the rATG concentration in human serum by flow cytometry was established and fully validated for therapeutic drug monitoring. In this method, Jurkat T cells were used to capture active rATG in human serum, and PE-labeled donkey anti-rabbit IgG was used as a secondary antibody. The method showed good specificity, selectivity and excellent linearity at concentration of 0.00300-20.0 AU/mL. The intra- and interday precision values were all within 20% at four concentration levels for the analyte. The stock solutions of rATG showed no significant degradation after storage at ambient temperature for 8 h and at - 80 °C for 481 days. No significant degradation of rATG in serum was observed at ambient temperature for 6 h, during six freezethaw cycles and at - 80 °C for at least 373 days. This method was fully validated and successfully applied to monitor active rATG concentration in serum of patients with haploid-identical hematopoietic stem cell transplantation.
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Affiliation(s)
- Xiaoxue Liu
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chenrong Huang
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xuanqi Cao
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Xiao Yang
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Sijia Li
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | | | - Wang Lin
- Suzhou Vocational Health College, Suzhou, China
| | - Linsheng Liu
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaoliang Ding
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaowen Tang
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu, China.
| | - Liyan Miao
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute for Interdisciplinary Drug Research and Translational Sciences, Soochow University, Suzhou, China; College of Pharmaceutical Sciences, Soochow University, Suzhou, China.
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Kim HD, Bae H, Yun S, Lee H, Eum SH, Yang CW, Oh EJ, Chung BH. Impact of Induction Immunosuppressants on T Lymphocyte Subsets after Kidney Transplantation: A Prospective Observational Study with Focus on Anti-Thymocyte Globulin and Basiliximab Induction Therapies. Int J Mol Sci 2023; 24:14288. [PMID: 37762590 PMCID: PMC10532255 DOI: 10.3390/ijms241814288] [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: 07/31/2023] [Revised: 09/08/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Induction immunosuppressive therapy for kidney transplant recipients (KTRs) primarily includes interleukin-2 receptor antagonists, such as basiliximab (BXM) or lymphocyte-depleting agents, and anti-thymocyte globulin (ATG). This study aimed to investigate their effects on T cell dynamics during the early post-transplantation period. This prospective observational study included 157 KTRs. Peripheral blood samples were collected from each patient within 5 days before and 4 and 12 weeks after transplantation. Flow cytometric analysis was performed to assess various T cell subsets whose changes were then analyzed. In the ATG group, CD4+ T cell expression decreased significantly compared with that in the BXM group. However, CD4+CD161+ and CD4+CD25+CD127low T cell expression levels increased significantly. In the CD8+ T cell subset, a decrease in CD8+CD28nullCD57+ and CD8+CCR7+ T cell expression was observed in the ATG group. However, among patients diagnosed with biopsy-proven acute rejection, T cell subset expression did not significantly differ relative to non-rejection cases. In conclusion, ATG induction therapy resulted in more pronounced changes in T lymphocyte subsets than BXM induction, with increased CD4+CD161+ and CD4+CD25+CD127low T cells and an early decrease in CD8+CD28nullCD57+ and CD8+CCR7+ T cells, some of which are associated with acute rejection.
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Affiliation(s)
- Hyung Duk Kim
- Division of Nephrology, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 03312, Republic of Korea;
| | - Hyunjoo Bae
- Department of Biomedical Science, Graduate School, The Catholic University of Korea, Seoul 06591, Republic of Korea; (H.B.); (S.Y.)
| | - Sojeong Yun
- Department of Biomedical Science, Graduate School, The Catholic University of Korea, Seoul 06591, Republic of Korea; (H.B.); (S.Y.)
| | - Hanbi Lee
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; (H.L.); (C.W.Y.)
| | - Sang Hun Eum
- Division of Nephrology, Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon 21431, Republic of Korea;
| | - Chul Woo Yang
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; (H.L.); (C.W.Y.)
| | - Eun-Jee Oh
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Research and Development Institute for In Vitro Diagnostic Medical Devices, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Byung Ha Chung
- Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; (H.L.); (C.W.Y.)
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Saleh QW, Mohammadnejad A, Tepel M. Lower levels of FOXP3 are associated with prolonged inflammatory responses in kidney transplant recipients. Front Immunol 2023; 14:1252857. [PMID: 37771580 PMCID: PMC10525697 DOI: 10.3389/fimmu.2023.1252857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/31/2023] [Indexed: 09/30/2023] Open
Abstract
Background Immunosuppressive treatment of kidney transplant recipients is mainly aimed at pro-inflammatory T effector cells, yet they also target the immunosuppressive T regulatory cells. Here, we test the hypothesis that low levels of the master gene regulator of T regulatory cells, forkhead box P3 (FOXP3) splice variants, are associated with prolonged inflammatory responses to stimuli. Methods From blood samples obtained the first - and 29th day post-transplant, we extracted peripheral blood mononuclear cells and measured mRNA levels of Total FOXP3, pre-mature RNA FOXP3 (pre-mRNA FOXP3), full length FOXP3 (FOXP3fl) and, FOXP3 splice variant excluding exon two (FOXP3d2). We defined the primary outcome as the number of days in which C reactive protein (CRP) was above 50 mg/L. CRP levels were gathered in two periods, the first from the second to 29 days post-transplant, and the second from 30 to 57 days post-transplant. The association was tested using adjusted negative binomial regression. Results From 507 included kidney transplant recipients, 382 recipients had at least one CRP measurement >50 mg/L in the first period, median duration of elevated CRP was 4 days [interquartile range (IQR) 2 to 6]. In the second period, 69 recipients had at least one CRP measurement >50 mg/L, median duration of elevated CRP was 3 days [IQR 2 to 5]. In the first period, we found a significant association between lower levels of Total FOXP3 and prolonged duration of CRP elevation, incidence rate ratio 0.61 (95% confidence interval 0.46-0.80), p<0.01. Conclusion Lower levels of total FOXP3 mRNA levels in peripheral blood of kidney transplant recipients are associated with prolonged duration of inflammatory responses regardless of the underlying stimuli.
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Affiliation(s)
- Qais W. Saleh
- Department of Nephrology, Odense University Hospital, Odense, Denmark
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Afsaneh Mohammadnejad
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Martin Tepel
- Department of Nephrology, Odense University Hospital, Odense, Denmark
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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Jacobsen LM, Diggins K, Blanchfield L, McNichols J, Perry DJ, Brant J, Dong X, Bacher R, Gersuk VH, Schatz DA, Atkinson MA, Mathews CE, Haller MJ, Long SA, Linsley PS, Brusko TM. Responders to low-dose ATG induce CD4+ T cell exhaustion in type 1 diabetes. JCI Insight 2023; 8:e161812. [PMID: 37432736 PMCID: PMC10543726 DOI: 10.1172/jci.insight.161812] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/06/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUNDLow-dose anti-thymocyte globulin (ATG) transiently preserves C-peptide and lowers HbA1c in individuals with recent-onset type 1 diabetes (T1D); however, the mechanisms of action and features of the response remain unclear. Here, we characterized the post hoc immunological outcomes of ATG administration and their potential use as biomarkers of metabolic response to therapy (i.e., improved preservation of endogenous insulin production).METHODSWe assessed gene and protein expression, targeted gene methylation, and cytokine concentrations in peripheral blood following treatment with ATG (n = 29), ATG plus granulocyte colony-stimulating factor (ATG/G-CSF, n = 28), or placebo (n = 31).RESULTSTreatment with low-dose ATG preserved regulatory T cells (Tregs), as measured by stable methylation of FOXP3 Treg-specific demethylation region (TSDR) and increased proportions of CD4+FOXP3+ Tregs (P < 0.001) identified by flow cytometry. While treatment effects were consistent across participants, not all maintained C-peptide. Responders exhibited a transient rise in IL-6, IP-10, and TNF-α (P < 0.05 for all) 2 weeks after treatment and a durable CD4+ exhaustion phenotype (increased PD-1+KLRG1+CD57- on CD4+ T cells [P = 0.011] and PD1+CD4+ Temra MFI [P < 0.001] at 12 weeks, following ATG and ATG/G-CSF, respectively). ATG nonresponders displayed higher proportions of senescent T cells (at baseline and after treatment) and increased methylation of EOMES (i.e., less expression of this exhaustion marker).CONCLUSIONAltogether in these exploratory analyses, Th1 inflammation-associated serum and CD4+ exhaustion transcript and cellular phenotyping profiles may be useful for identifying signatures of clinical response to ATG in T1D.TRIAL REGISTRATIONClinicalTrials.gov NCT02215200.FUNDINGThe Leona M. and Harry B. Helmsley Charitable Trust (2019PG-T1D011), the NIH (R01 DK106191 Supplement, K08 DK128628), NIH TrialNet (U01 DK085461), and the NIH NIAID (P01 AI042288).
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Affiliation(s)
- Laura M. Jacobsen
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, Florida, USA
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
| | - Kirsten Diggins
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
| | - Lori Blanchfield
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
| | - James McNichols
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
| | - Daniel J. Perry
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
| | - Jason Brant
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
| | - Xiaoru Dong
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
- Department of Biostatistics, University of Florida, Gainesville, Florida, USA
| | - Rhonda Bacher
- Department of Biostatistics, University of Florida, Gainesville, Florida, USA
| | - Vivian H. Gersuk
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
| | - Desmond A. Schatz
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Mark A. Atkinson
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, Florida, USA
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
| | - Clayton E. Mathews
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, Florida, USA
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
| | - Michael J. Haller
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - S. Alice Long
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
| | - Peter S. Linsley
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
| | - Todd M. Brusko
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, Florida, USA
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida Diabetes Institute, Gainesville, Florida, USA
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Dybko J, Giordano U, Pilch J, Mizera J, Borkowski A, Mordak-Domagała M. Comparison of Different Rabbit Anti-Thymocyte Globulin Formulations in the Prophylaxis of Graft-Versus-Host Disease: A Systematic Review. J Clin Med 2023; 12:5449. [PMID: 37685516 PMCID: PMC10487811 DOI: 10.3390/jcm12175449] [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: 06/27/2023] [Revised: 08/09/2023] [Accepted: 08/20/2023] [Indexed: 09/10/2023] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HCT) is a potentially curative treatment modality, frequently used for patients suffering from haematological malignancies. In the last two decades, there have been multiple randomised controlled trials (RCTs), review articles, and meta-analyses addressing the efficacy of rabbit anti-thymocyte globulin (r-ATG) as a graft-versus-host disease (GvHD) prophylaxis. Nevertheless, only a few aimed to compare the effectiveness of different r-ATG formulations. Since the last article we retrieved comparing different r-ATGs in GvHD prophylaxis dates back to 2017, we performed a systematic literature review of articles published since 2017 to this day, utilising PubMed, Scopus, Cochrane, and MEDLINE, with the main endpoints being prophylaxis of acute GvHD (aGvHD) and chronic GvHD (cGvHD). We subjected to scrutiny a total of five studies, of which four compared the differences between Thymoglobulin (ATG-T) and Grafalon (ATG-G), and one discussed the impact of ATG-T dose. Overall, cGvHD, aGvHD grades II-IV, TRM, OS, NRM, LFS, relapse, overall infections, and EBV reactivation do not seem to be affected by the type of utilised rATG. However, data on aGvHD grades III-IV, GRFS, moderate-severe cGvHD, and CMV reactivation is conflicting. Through our research, we sought to summarise the most recent findings concerning r-ATGs in allo-HCT, and provide insight into the differences between the targets and origin of various ATG formulations.
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Affiliation(s)
- Jarosław Dybko
- Lower Silesia Centre for Oncology, Pulmonology and Hematology in Wrocław, 53-439 Wroclaw, Poland; (J.D.); (M.M.-D.)
| | - Ugo Giordano
- University Clinical Hospital in Wroclaw, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Justyna Pilch
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.P.); (J.M.)
| | - Jakub Mizera
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.P.); (J.M.)
| | - Artur Borkowski
- Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, 44-102 Gliwice, Poland;
| | - Monika Mordak-Domagała
- Lower Silesia Centre for Oncology, Pulmonology and Hematology in Wrocław, 53-439 Wroclaw, Poland; (J.D.); (M.M.-D.)
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Du JS, Wang HT, Dou LP, Wang N, Li F, Jin XS, Liu DH. [Efficacy analysis of anti-thymocyte globulin regimens with different timing strategies for matched sibling donor hematopoietic stem cell transplantation]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2023; 44:660-666. [PMID: 37803840 PMCID: PMC10520230 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Indexed: 10/08/2023]
Abstract
Objective: To compare the effects of two administration time strategies for rabbit antihuman thymocyte immunoglobulin (rATG) of 5mg/kg total dose in matched sibling donor hematopoietic stem cell transplantation (MSD-HSCT) . Methods: This study retrospectively analyzed the clinical data of 32 patients who received MSD-HSCT with 5 mg/kg rATG conditioning regimen at the Department of Hematology of the First Medical Center of the People's Liberation Army General Hospital from October 2020 to April 2022. The patients were classified into two groups: the 4d-rATG group (16 cases), who received antithymocyte globulin (ATG) from day -5 to day -2, and the 2d-rATG group (16 cases), who received ATG from day -5 to day -4. Between the two groups, the transplantation outcomes, serum concentrations of active antithymocyte globulin (ATG) in patients from -4 days to 28 days after graft infusion (+28 days), and the reconstitution of lymphocyte subsets on days +30, +60, and +90 were compared. Results: The cumulative incidences of acute graft-versus-host disease at 100 days after graft infusion were 25.0% (95% CI 7.8% -47.2% ) and 18.8% (95% CI 4.6% -40.2% ) (P=0.605) in the 4d-rATG group and 2d-rATG group, respectively. The 1-year cumulative incidences of chronic graft-versus-host disease were 25.9% (95% CI 8.0% -48.6% ) and 21.8% (95% CI 5.2% -45.7% ) (P=0.896). The 1-year cumulative incidence of relapse was 37.5% (95% CI 18.9% -65.1% ) and 14.6% (95% CI 3.6% -46.0% ) (P=0.135), and the 1-year probabilities of overall survival were 75.0% (95% CI 46.3% -89.8% ) and 100% (P=0.062). The total area under the curve (AUC) of serum active ATG was 36.11 UE/ml·d and 35.89 UE/ml·d in the 4d-rATG and 2d-rATG groups, respectively (P=0.984). The AUC was higher in the 4d-rATG group than that in the 2d-rATG group (20.76 UE/ml·d vs 15.95 UE/ml·d, P=0.047). Three months after graft infusion, the average absolute count of CD8(+) T lymphocytes in the 4d-rATG group was lower than that in the 2d-rATG group (623 cells/μl vs 852 cells/μl, P=0.037) . Conclusion: The efficiencies of GVHD prophylaxis in MSD-PBSCT receiving 4d-ATG regimen and the 2d-rATG regimen were found to be similar. The reconstruction of CD8(+)T lymphocytes in the 2d-rATG group was better than that in the 4d-rATG group, which is related to the lower AUC of active ATG after transplantation.
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Affiliation(s)
- J S Du
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
| | - H T Wang
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
| | - L P Dou
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
| | - N Wang
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
| | - F Li
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
| | - X S Jin
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
| | - D H Liu
- Chinese PLA General Hospital, Department of Hematology in the Fifth Medical Center of PLA General Hospital, Beijing 100853, China
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Dibos M, Dumoulin J, Mogler C, Wunderlich S, Reichert M, Rasch S, Schmid RM, Ringelhan M, Ehmer U, Lahmer T. Fulminant Liver Failure after Treatment with a Checkpoint Inhibitor for Gastric Cancer: A Case Report and Review of the Literature. J Clin Med 2023; 12:4641. [PMID: 37510756 PMCID: PMC10381004 DOI: 10.3390/jcm12144641] [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: 06/03/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Nivolumab is a promising monoclonal antibody inhibitor of programmed death-1, a protein on the surface of T-cells. As such, it is approved for use in patients with multiple advanced malignancies and can significantly elongate progression-free survival. However, monoclonal antibody inhibitors can lead to adverse hepatic reactions, which in rare cases result in further hepatic damage. Herein, we present a case of a patient with locally advanced gastric carcinoma treated with fluorouracil, oxaliplatin, docetaxel and the checkpoint inhibitor nivolumab. Five months after her first dosage of nivolumab and without a preexisting liver disease, she presented with transaminitis. During the course of her stay, the patient developed status epilepticus, which required mechanical ventilation followed by fulminant hepatic failure. A subsequent liver biopsy revealed severe liver damage with extensive confluent parenchymal necrosis corresponding to checkpoint-inhibitor-induced hepatitis. Alternative reasons for this hepatic failure were ruled out. Despite aggressive therapeutic interventions including corticosteroids and plasma exchange, the patient died due to liver failure. Although hepatic failure is rarely seen in patients with checkpoint inhibitor therapy, it requires early awareness and rapid intervention.
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Affiliation(s)
- Miriam Dibos
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Johanna Dumoulin
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Carolin Mogler
- Department of Pathology, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Silke Wunderlich
- Department of Neurology, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Maximilian Reichert
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Sebastian Rasch
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Roland M Schmid
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Marc Ringelhan
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Ursula Ehmer
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Tobias Lahmer
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
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Balzano T, Llansola M, Arenas YM, Izquierdo-Altarejos P, Felipo V. Hepatic encephalopathy: investigational drugs in preclinical and early phase development. Expert Opin Investig Drugs 2023; 32:1055-1069. [PMID: 37902074 DOI: 10.1080/13543784.2023.2277386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/26/2023] [Indexed: 10/31/2023]
Abstract
INTRODUCTION Hepatic encephalopathy (HE) is a neuropsychiatric syndrome, in patients with liver disease, which affects life quality and span. Current treatments are lactulose or rifaximin, acting on gut microbiota. Treatments aiming ammonia levels reduction have been tested with little success. AREAS COVERED Pre-clinical research shows that the process inducing HE involves sequentially: liver failure, altered microbiome, hyperammonemia, peripheral inflammation, changes in immunophenotype and extracellular vesicles and neuroinflammation, which alters neurotransmission impairing cognitive and motor function. HE may be reversed using drugs acting at any step: modulating microbiota with probiotics or fecal transplantation; reducing peripheral inflammation with anti-TNFα, autotaxin inhibitors or silymarin; reducing neuroinflammation with sulforaphane, p38 MAP kinase or phosphodiesteras 5 inhibitors, antagonists of sphingosine-1-phosphate receptor 2, enhancing meningeal lymphatic drainage or with extracellular vesicles from mesenchymal stem cells; reducing GABAergic neurotransmission with indomethacin or golexanolone. EXPERT OPINION A factor limiting the progress of HE treatment is the lack of translation of research advances into clinical trials. Only drugs acting on microbiota or ammonia reduction have been tested in patients. It is urgent to change the mentality on how to approach HE treatment to develop clinical trials to assess drugs acting on the immune system/peripheral inflammation, neuroinflammation or neurotransmission to improve HE.
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Affiliation(s)
- Tiziano Balzano
- Laboratory of Neurobiology, Centro de Investigación Príncipe Felipe, Valencia, Spain
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
| | - Marta Llansola
- Laboratory of Neurobiology, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Yaiza M Arenas
- Laboratory of Neurobiology, Centro de Investigación Príncipe Felipe, Valencia, Spain
- Departamento de Patología, Facultad de Medicina, Universidad Valencia, Valencia, Spain
| | | | - Vicente Felipo
- Laboratory of Neurobiology, Centro de Investigación Príncipe Felipe, Valencia, Spain
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Chakupurakal G, Freudenberger P, Skoetz N, Ahr H, Theurich S. Polyclonal anti-thymocyte globulins for the prophylaxis of graft-versus-host disease after allogeneic stem cell or bone marrow transplantation in adults. Cochrane Database Syst Rev 2023; 6:CD009159. [PMID: 37341189 PMCID: PMC10284458 DOI: 10.1002/14651858.cd009159.pub3] [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] [Indexed: 06/22/2023]
Abstract
BACKGROUND Allogeneic haematopoietic stem cell transplantation (SCT) is an established treatment for many malignant and non-malignant haematological disorders. Graft-versus-host disease (GVHD), a condition frequently occurring after an allogeneic SCT, is the result of host tissues being attacked by donor immune cells. It affects more than half of the patients after transplant either as acute and or chronic GVHD. One strategy for the prevention of GVHD is the administration of anti-thymocyte globulins (ATGs), a set of polyclonal antibodies directed against a variety of immune cell epitopes, leading to immunosuppression and immunomodulation. OBJECTIVES To assess the effect of ATG used for the prevention of GVHD in patients undergoing allogeneic SCT with regard to overall survival, incidence and severity of acute and chronic GVHD, incidence of relapse, non-relapse mortality, graft failure and adverse events. SEARCH METHODS For this update we searched the CENTRAL, MEDLINE, Embase, trial registers and conference proceedings on the 18th November 2022 along with reference checking and contacting study authors to identify additional studies. We did not apply language restrictions. SELECTION CRITERIA We included randomised controlled trials (RCTs) investigating the impact of ATG on GVHD prophylaxis in adults suffering from haematological diseases and undergoing allogeneic SCT. The selection criteria were modified from the previous version of this review. Paediatric studies and studies where patients aged < 18 years constituted more than 20 % of the total number were excluded. Treatment arms had to differ only in the addition of ATG to the standard GVHD prophylaxis regimen. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by the Cochrane Collaboration for data collection, extraction and analyses. MAIN RESULTS For this update we included seven new RCTs, leading to a total of ten studies investigating 1413 participants. All patients had a haematological condition which warranted an allogeneic SCT. The risk of bias was estimated as low for seven and unclear for three studies. ATG probably has little or no influence on overall survival (HR (hazard ratio) 0.93 (95 % confidence interval (CI) 0.77 to 1.13, nine studies, n = 1249, moderate-certainty evidence)). Estimated absolute effect: 430 surviving people per 1000 people not receiving ATG compared to 456 people surviving per 1000 people receiving the intervention (95 % CI 385 to 522 per 1000 people). ATG results in a reduction in acute GVHD II to IV with relative risk (RR) 0.68 (95 % CI 0.60 to 0.79, 10 studies, n = 1413, high-certainty evidence). Estimated absolute effect: 418 acute GVHD II to IV per 1000 people not receiving ATG compared to 285 per 1000 people receiving the intervention (95 % CI 251 to 331 per 1000 people). Addition of ATG results in a reduction of overall chronic GvHD with a RR of 0.53 (95 % CI 0.45 to 0.61, eight studies, n = 1273, high-certainty evidence). Estimated absolute effect: 506 chronic GVHD per 1000 people not receiving ATG compared to 268 per 1000 people receiving the intervention (95 % CI 228 to 369 per 1000 people). Further data on severe acute GVHD and extensive chronic GVHD are available in the manuscript. ATG probably slightly increases the incidence of relapse with a RR of 1.21 (95 % CI 0.99 to 1.49, eight studies, n =1315, moderate-certainty evidence). Non relapse mortality is probably slightly or not affected by ATG with an HR of 0.86 (95 % CI 0.67 to 1.11, nine studies, n=1370, moderate-certainty evidence). ATG prophylaxis may result in no increase in graft failure with a RR of 1.55 (95 % CI 0.54 to 4.44, eight studies, n = 1240, low-certainty evidence). Adverse events could not be analysed due to the serious heterogeneity in the reporting between the studies, which limited comparability (moderate-certainty evidence) and are reported in a descriptive manner. Subgroup analyses on ATG types, doses and donor type are available in the manuscript. AUTHORS' CONCLUSIONS This systematic review suggests that the addition of ATG during allogeneic SCT probably has little or no influence on overall survival. ATG results in a reduction in the incidence and severity of acute and chronic GvHD. ATG intervention probably slightly increases the incidence of relapse and probably does not affect the non relapse mortality. Graft failure may not be affected by ATG prophylaxis. Analysis of data on adverse events was reported in a narrative manner. A limitation for the analysis was the imprecision in reporting between the studies thereby reducing the confidence in the certainty of evidence.
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Affiliation(s)
- Geothy Chakupurakal
- Praxis for Haematology and Oncology, Koblenz, Germany
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Faculty of Medicine at the University of Cologne, Cologne, Germany
| | | | - Nicole Skoetz
- Cochrane Cancer, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Hans Ahr
- Rheinland Klinikum, Dormagen, Germany
| | - Sebastian Theurich
- Department of Medicine III, University Hospital LMU, Ludwig-Maximilians-Universität München, Munich, Germany
- Cancer and Immunometabolism Research Group, Gene Center LMU, Munich, Germany
- German Cancer Consortium (DKTK), Munich Site , German Cancer Research Center, Heidelberg, Germany
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Malard F, Holler E, Sandmaier BM, Huang H, Mohty M. Acute graft-versus-host disease. Nat Rev Dis Primers 2023; 9:27. [PMID: 37291149 DOI: 10.1038/s41572-023-00438-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/02/2023] [Indexed: 06/10/2023]
Abstract
Acute graft-versus-host disease (GVHD) is a common immune complication that can occur after allogeneic haematopoietic cell transplantation (alloHCT). Acute GVHD is a major health problem in these patients, and is associated with high morbidity and mortality. Acute GVHD is caused by the recognition and the destruction of the recipient tissues and organs by the donor immune effector cells. This condition usually occurs within the first 3 months after alloHCT, but later onset is possible. Targeted organs include the skin, the lower and upper gastrointestinal tract and the liver. Diagnosis is mainly based on clinical examination, and complementary examinations are performed to exclude differential diagnoses. Preventive treatment for acute GVHD is administered to all patients who receive alloHCT, although it is not always effective. Steroids are used for first-line treatment, and the Janus kinase 2 (JAK2) inhibitor ruxolitinib is second-line treatment. No validated treatments are available for acute GVHD that is refractory to steroids and ruxolitinib, and therefore it remains an unmet medical need.
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Affiliation(s)
- Florent Malard
- Sorbonne Université, Centre de Recherche Saint-Antoine INSERM UMRs938, Service d'Hématologie Clinique et de Thérapie Cellulaire, Hôpital Saint Antoine, AP-HP, Paris, France.
| | - Ernst Holler
- University Hospital of Regensburg, Department of Internal Medicine 3, Regensburg, Germany
| | - Brenda M Sandmaier
- Fred Hutchinson Cancer Center, Translational Science and Therapeutics Division, Seattle, WA, USA
- University of Washington School of Medicine, Division of Medical Oncology, Seattle, WA, USA
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Province, Hangzhou, China
- Engineering Laboratory for Stem Cell and Immunity Therapy, Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Mohamad Mohty
- Sorbonne Université, Centre de Recherche Saint-Antoine INSERM UMRs938, Service d'Hématologie Clinique et de Thérapie Cellulaire, Hôpital Saint Antoine, AP-HP, Paris, France.
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Vieri M, Rolles B, Crocioni M, Schemionek-Reinders M, Isfort S, Panse J, Brümmendorf TH, Beier F. Eltrombopag Preserves the Clonogenic Potential of Hematopoietic Stem Cells During Treatment With Antithymocyte Globulin in Patients With Aplastic Anemia. Hemasphere 2023; 7:e906. [PMID: 37304936 PMCID: PMC10249716 DOI: 10.1097/hs9.0000000000000906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 05/03/2023] [Indexed: 06/13/2023] Open
Abstract
Aplastic anemia (AA) is frequently caused by a T-cell mediated autoimmune depletion of the hematopoietic stem and progenitor cell (HSPC) compartment. Immunosuppressive therapy (IST) with antithymocyte globulin (ATG) and cyclosporine represents the first-line treatment of AA. One side effect of ATG therapy is the release of proinflammatory cytokines such as interferon-gamma (IFN-γ), which is considered a major factor in the pathogenic autoimmune depletion of HSPC. Recently, eltrombopag (EPAG) was introduced for therapy of refractory AA patients due to its ability to bypass IFN-γ-mediated HSPC inhibition among other mechanisms. Clinical trials have evidenced that EPAG started simultaneously with IST leads to a higher response rate compared with its later administration schedules. We hypothesize that EPAG might protect HSPC from negative effects of ATG-induced release of cytokines. We observed a significant decrease in colony numbers when both healthy peripheral blood (PB) CD34+ cells and AA-derived bone marrow cells were cultured in the presence of serum from patients under ATG treatment, as compared with before treatment. Consistent with our hypothesis, this effect could be rescued by adding EPAG in vitro to both healthy and AA-derived cells. By employing an IFN-γ neutralizing antibody, we also demonstrated that the deleterious early ATG effects on the healthy PB CD34+ compartment were mediated at least partially by IFN-γ. Hence, we provide evidence for the hitherto unexplained clinical observation that concomitant use of EPAG in addition to IST comprising ATG leads to improved response in patients with AA.
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Affiliation(s)
- Margherita Vieri
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
| | - Benjamin Rolles
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
| | - Maria Crocioni
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
- Department of Medicine and Surgery, University of Perugia, Italy
| | - Mirle Schemionek-Reinders
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
| | - Susanne Isfort
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
| | - Jens Panse
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
| | - Tim H. Brümmendorf
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
| | - Fabian Beier
- Department of Hematology, Oncology, Hemostaseology, Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Germany
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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.
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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
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Balzano T. Active Clinical Trials in Hepatic Encephalopathy: Something Old, Something New and Something Borrowed. Neurochem Res 2023:10.1007/s11064-023-03916-w. [PMID: 36977964 PMCID: PMC10047473 DOI: 10.1007/s11064-023-03916-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 02/28/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
Hepatic encephalopathy (HE) is a potentially reversible neurocognitive syndrome that occurs in patients with acute or chronic liver disease. Currently, most of the therapies for HE aim to reduce ammonia production or increase its elimination. To date, only two agents have been approved as treatments for HE: lactulose and rifaximin. Many other drugs have also been used, but data to support their use are limited, preliminary or lacking. The aim of this review is to provide an overview and discussion of the current development of treatments for HE. Data from ongoing clinical trials in HE were obtained from the ClinicalTrials.gov website, and a breakdown analysis of studies that were active on August 19th, 2022, was performed. Seventeen registered and ongoing clinical trials for therapeutics targeting HE were identified. More than 75% of these agents are in phase II (41.2%) or in phase III (34.7%). Among them, there are many old acquaintances in the field, such as lactulose and rifaximin, some new entries such as fecal microbiota transplantation and equine anti-thymocyte globulin, an immunosuppressive agent, but also some therapies borrowed from other conditions, such as rifamycin SV MMX and nitazoxanide, two antimicrobial agents FDA approved for the treatment of some types of diarrheas or VE303 and RBX7455, two microbiome restoration therapies, currently used as treatment of high-risk Clostridioides difficile infections. If working, some of these drugs could soon be used as valid alternatives to current therapies when ineffective or be approved as novel therapeutic approaches to improve the quality of life of HE patients.
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Affiliation(s)
- Tiziano Balzano
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain.
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42
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Pan P, Chen C, Hong J, Gu Y. Autoimmune pathogenesis, immunosuppressive therapy and pharmacological mechanism in aplastic anemia. Int Immunopharmacol 2023; 117:110036. [PMID: 36940553 DOI: 10.1016/j.intimp.2023.110036] [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: 12/28/2022] [Revised: 02/26/2023] [Accepted: 03/10/2023] [Indexed: 03/23/2023]
Abstract
Acquired aplastic anemia (AA) is an autoimmune disease of bone marrow failure mediated by abnormally activated T cells, manifested by severe depletion of hematopoietic stem and progenitor cells (HSPCs) and peripheral blood cells. Due to the limitation of donors for hematopoietic stem cell transplantation, immunosuppressive therapy (IST) is currently an effective first-line treatment. However, a significant proportion of AA patients remain ineligible for IST, relapse, and develop other hematologic malignancies, such as acute myeloid leukemia after IST. Therefore, it is important to elucidate the pathogenic mechanisms of AA and to identify treatable molecular targets, which is an attractive way to improve these outcomes. In this review, we summarize the immune-related pathogenesis of AA, pharmacological targets, and clinical effects of the current mainstream immunosuppressive agents. It provides new insight into the combination of immunosuppressive drugs with multiple targets, as well as the discovery of new druggable targets based on current intervention pathways.
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Affiliation(s)
- Pengpeng Pan
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei 230032, PR China
| | - Congcong Chen
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei 230032, PR China
| | - Jian Hong
- Department of Hematology, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, PR China
| | - Yue Gu
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei 230032, PR China.
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Choi Y, Choi EJ, Park HS, Lee JH, Lee JH, Lee YS, Kang YA, Jeon M, Woo JM, Kang H, Baek S, Kim SM, Bong CE, Lee KH. A uniform conditioning regimen of busulfan, fludarabine, and antithymocyte globulin for allogeneic haematopoietic cell transplantation from haploidentical family, matched sibling, or unrelated donors-A single-centre, prospective, explorative study. Br J Haematol 2023; 200:608-621. [PMID: 36370064 DOI: 10.1111/bjh.18550] [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: 08/08/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022]
Abstract
In a prospective, explorative study, the donor-source difference of haploidentical family (HF), matched sibling (MS), and unrelated donors (UD) was evaluated for the outcome of haematopoietic cell transplantations (HCT) in 101 patients with acute myeloid leukaemia (AML) in complete remission (CR). To eliminate compounding effects, a uniform conditioning regimen containing antithymocyte globulin (ATG) was used. After transplantation, there was a significantly higher cumulative incidence of acute graft-versus-host disease (GVHD) in HF-HCT patients (49%, 7%, and 16% for HF-, MS- and UD-HCT respectively; p < 0.001). A quarter of acute GVHD cases observed in HF-HCT patients occurred within three days of engraftment and were characterized by diffuse skin rash, fever, weight gain, and hypoalbuminaemia. This peri-engraftment acute GVHD was not observed in MS-HCT or UD-HCT patients. Additionally, a significantly higher proportion of HF-HCT patients achieved complete donor chimaerism in the peripheral mononuclear cells at one month (88%, 46%, and 69% for HF-, MS- and UD-HCT respectively; p = 0.001). There was no significant difference in engraftment, chronic GVHD, leukaemia recurrence, non-relapse mortality, and patient survival. In patients with AML in CR who received HCT using ATG-containing conditioning, stronger donor-patient alloreactivity was observed in HF-HCT, in terms of increased acute GVHD and higher likelihood of complete donor chimaerism.
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Affiliation(s)
- Yunsuk Choi
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eun-Ji Choi
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Han-Seung Park
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jung-Hee Lee
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Je-Hwan Lee
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Shin Lee
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-A Kang
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Mijin Jeon
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ji Min Woo
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyeran Kang
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seunghyun Baek
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Su Mi Kim
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Chae-Eun Bong
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kyoo-Hyung Lee
- Hematology Section, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Li N, Zhao C, Ma R, Lou R, Liu XJ, Zheng FM, Wang JZ, Wang Y, Huang XJ, Sun YQ. Cytokine profiling during conditioning in haploidentical stem cell transplantation and its prognostic impact on early transplant outcomes. Transpl Immunol 2023; 78:101830. [PMID: 36972853 DOI: 10.1016/j.trim.2023.101830] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/17/2023] [Accepted: 03/23/2023] [Indexed: 03/28/2023]
Abstract
Cytokine storm development is a major cause of many transplant-related complications, especially during the conditioning regimen. This study aimed to characterize the cytokine profile and determine its prognostic impact during conditioning in patients undergoing subsequent haploidentical stem cell transplantation. A total of 43 patients were enrolled in this study. Sixteen cytokines associated with cytokine release syndrome (CRS) during anti-thymocyte globulin (ATG) treatment were quantified in patients undergoing haploidentical stem cell transplantation. Thirty-six (83.7%) patients developed CRS during ATG treatment; most of those cases (33/36; 91.7%) were classified as grade 1 CRS, whereas only three (7.0%) developed grade 2 CRS. CRS was observed more frequently on the first (15/43; 34.9%) and second day (30/43; 69.8%) of ATG infusion. No factors were identified that could predict the development of CRS on the first day of ATG treatment. Five of the 16 cytokines (interleukins 6, 8, and 10 (IL-6, IL-8, and IL-10), C-reactive protein (CRP), and procalcitonin (PCT)) were significantly elevated during ATG treatment, although only the level of IL-6, IL-10, and PCT were associated with the severity of CRS. However, neither CRS nor the cytokine levels significantly impacted the development of acute graft-versus-host disease (GVHD) or cytomegalovirus (CMV) infection or affected overall survival.
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Affiliation(s)
- Na Li
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Chen Zhao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Rui Ma
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Rui Lou
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Xiu-Juan Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Feng-Mei Zheng
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Jing-Zhi Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Yu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China; Peking-Tsinghua Center for Life Sciences, Beijing, PR China
| | - Yu-Qian Sun
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, PR China; Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing, PR China.
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Schoeberl AK, Zuckermann A, Kaider A, Aliabadi-Zuckermann A, Uyanik-Uenal K, Laufer G, Goekler J. Absolute Lymphocyte Count as a Marker for Cytomegalovirus Infection After Heart Transplantation. Transplantation 2023; 107:748-752. [PMID: 36228318 DOI: 10.1097/tp.0000000000004360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Previous studies indicate an association between reduced absolute lymphocyte count (ALC) and cytomegalovirus (CMV) infection after solid organ transplantation and have therefore highlighted the potential of ALC as a simple tool to predict CMV infection in transplant patients. This study aimed to examine the utility of ALC as a valuable marker for CMV infection in heart transplant patients. METHODS Clinical information and ALC data of all adult patients who received orthotopic heart transplantation at the Medical University of Vienna between January 2004 and May 2019 were collected. We performed a multivariable Cox regression model that incorporates repeated measurements of ALC as a time-varying continuous factor in 2 ways, first as continuous logarithmic factor considering a 50% decrease of ALC levels and second as binary factor using a threshold of 610 cells/μL. RESULTS One hundred fifty-eight (39%) patients developed CMV infection over the course of 2 y. Patients with lymphopenia were shown to be at higher risk of developing CMV infection both in the continuous approach (HR [per 50% reduction] 1.29; confidence interval [CI], 1.09-1.53; P = 0.003) and the binary approach with a cutoff of 610 cells/μL (HR 1.74; CI, 1.20-2.51; P = 0.003). CONCLUSIONS This study demonstrated a strong association between reduced ALC and the development of CMV infection after heart transplantation. ALC value monitoring could provide an additional tool to assess individualized CMV risk after solid organ transplantation.
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Affiliation(s)
- Armin-Kai Schoeberl
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Andreas Zuckermann
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Alexandra Kaider
- Department of Clinical Biometrics, Center for Medical Statistics, Informatics, and Intelligent Systems (CeMSIIS), Medical University of Vienna, Vienna, Austria
| | | | | | - Guenther Laufer
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
| | - Johannes Goekler
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
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Rousse J, Royer PJ, Evanno G, Lheriteau E, Ciron C, Salama A, Shneiker F, Duchi R, Perota A, Galli C, Cozzi E, Blancho G, Duvaux O, Brouard S, Soulillou JP, Bach JM, Vanhove B. LIS1, a glyco-humanized swine polyclonal anti-lymphocyte globulin, as a novel induction treatment in solid organ transplantation. Front Immunol 2023; 14:1137629. [PMID: 36875084 PMCID: PMC9978386 DOI: 10.3389/fimmu.2023.1137629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
Anti-thymocyte or anti-lymphocyte globulins (ATGs/ALGs) are immunosuppressive drugs used in induction therapies to prevent acute rejection in solid organ transplantation. Because animal-derived, ATGs/ALGs contain highly immunogenic carbohydrate xenoantigens eliciting antibodies that are associated with subclinical inflammatory events, possibly impacting long-term graft survival. Their strong and long-lasting lymphodepleting activity also increases the risk for infections. We investigated here the in vitro and in vivo activity of LIS1, a glyco-humanized ALG (GH-ALG) produced in pigs knocked out for the two major xeno-antigens αGal and Neu5Gc. It differs from other ATGs/ALGs by its mechanism of action excluding antibody-dependent cell-mediated cytotoxicity and being restricted to complement-mediated cytotoxicity, phagocyte-mediated cytotoxicity, apoptosis and antigen masking, resulting in profound inhibition of T-cell alloreactivity in mixed leucocyte reactions. Preclinical evaluation in non-human primates showed that GH-ALG dramatically reduced CD4+ (p=0.0005,***), CD8+ effector T cells (p=0.0002,***) or myeloid cells (p=0.0007,***) but not T-reg (p=0.65, ns) or B cells (p=0.65, ns). Compared with rabbit ATG, GH-ALG induced transient depletion (less than one week) of target T cells in the peripheral blood (<100 lymphocytes/L) but was equivalent in preventing allograft rejection in a skin allograft model. The novel therapeutic modality of GH-ALG might present advantages in induction treatment during organ transplantation by shortening the T-cell depletion period while maintaining adequate immunosuppression and reducing immunogenicity.
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Affiliation(s)
| | | | | | | | - Carine Ciron
- Research and Development, Xenothera, Nantes, France
| | - Apolline Salama
- Nantes Université, Inserm, University Hospital Center CHU Nantes, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | | | - Roberto Duchi
- Transplantation Immunology Unit, Padua University Hospital, Padova, Italy
| | - Andrea Perota
- Transplantation Immunology Unit, Padua University Hospital, Padova, Italy
| | - Cesare Galli
- Transplantation Immunology Unit, Padua University Hospital, Padova, Italy
| | - Emmanuele Cozzi
- Avantea, Laboratorio di Tecnologie della Riproduzione, Cremona, Italy
| | - Gilles Blancho
- Nantes Université, Inserm, University Hospital Center CHU Nantes, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Odile Duvaux
- Research and Development, Xenothera, Nantes, France
| | - Sophie Brouard
- Nantes Université, Inserm, University Hospital Center CHU Nantes, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Jean-Paul Soulillou
- Nantes Université, Inserm, University Hospital Center CHU Nantes, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
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Chiodo Ortiz A, Petrossian G, Addonizio K, Hsiao A, Koizumi N, Yu Y, Plews R, Conti D, Ortiz J. Short-term decreased post transplant lymphoproliferative disorder risk after kidney transplantation using two novel regimens. Transpl Immunol 2023; 76:101774. [PMID: 36528248 DOI: 10.1016/j.trim.2022.101774] [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: 08/12/2022] [Revised: 12/06/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Belatacept is employed alongside calcineurin inhibitor (CNI) therapy to prevent graft rejection in kidney transplant patients who are Epstein-Barr virus (EBV) seropositive. Preliminary data suggested that rates of post-transplant lymphoproliferative disorder (PTLD) were higher in individuals treated with belatacept compared to CNI therapy alone. METHODS The records of 354 adults who underwent kidney only transplantation from January 2015 through September 2021 at one medical center were evaluated. Patients underwent treatment with either low-doses of mycophenolate, tacrolimus and sirolimus (B0, n = 235) or low-doses of mycophenolate, tacrolimus and belatacept (B1, n = 119). All recipients underwent induction with antithymocyte globulin and a rapid glucocorticosteroid taper. Relevant donor and recipient information were analyzed and endpoints of PTLD were assessed. RESULTS There were no cases of PTLD in either cohort within the study period. Recipients in the belatacept cohort experienced lower estimated glomerular filtration rates at 12 months (B0: 67.48 vs. B1: 59.10, p = 0.0014). Graft failure at 12 (B0: 1.28% vs. B1: 0.84%, p = 1.0) and 24 months (B0:2.55% vs. B1: 0.84%, p = 0.431) were similar. There was no difference in rejection rates at 12 (B0: 1.27% vs. B1: 2.52%, p = 0.408) or 24 months (B0: 2.12% vs. B1: 2.52%, p = 1.000). Both groups had similar rates of malignancy, mortality and CMV/BK viremia. CONCLUSION Non-belatacept (MMF, tacrolimus and sirolimus) and belatacept-based (MMF, tacrolimus and belatacept) regimens do not appear to pose any increased risk of early onset PTLD. Both cohorts benefited from low rates of rejection, malignancy, mortality and graft failure. Recipients will continue to be monitored as PTLD can manifest as a long-term complication.
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Affiliation(s)
- A Chiodo Ortiz
- Albany Medical Center, Albany, NY, United States of America.
| | - G Petrossian
- Albany Medical Center, Albany, NY, United States of America
| | - K Addonizio
- Albany Medical Center, Albany, NY, United States of America
| | - A Hsiao
- Albany Medical Center, Albany, NY, United States of America
| | - N Koizumi
- George Mason University, Fairfax, VA, United States of America
| | - Y Yu
- George Mason University, Fairfax, VA, United States of America
| | - R Plews
- Division of Renal and Pancreatic Transplant Services, Albany Medical Center, Albany, NY, United States of America
| | - D Conti
- Division of Renal and Pancreatic Transplant Services, Albany Medical Center, Albany, NY, United States of America
| | - J Ortiz
- Division of Renal and Pancreatic Transplant Services, Albany Medical Center, Albany, NY, United States of America
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Habib JG, Liu D, Crepeau RM, Wagener ME, Ford ML. Selective CD28 blockade impacts T cell differentiation during homeostatic reconstitution following lymphodepletion. Front Immunol 2023; 13:1081163. [PMID: 36761170 PMCID: PMC9904166 DOI: 10.3389/fimmu.2022.1081163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/28/2022] [Indexed: 01/26/2023] Open
Abstract
Introduction Costimulation blockade targeting the CD28 pathway provides improved long-term renal allograft survival compared to calcineurin inhibitors but may be limited as CTLA-4-Ig (abatacept, belatacept) blocks both CD28 costimulation and CTLA-4 coinhibition. Directly targeting CD28 while leaving CTLA-4 intact may provide a mechanistic advantage. Fc-silent non-crosslinking CD28 antagonizing domain antibodies (dAb) are currently in clinical trials for renal transplantation. Given the current standard of care in renal transplantation at most US centers, it is likely that lymphodepletion via thymoglobulin induction therapy could be used in patients treated with CD28 antagonists. Thus, we investigated the impact of T cell depletion (TCD) on T cell phenotype following homeostatic reconstitution in a murine model of skin transplantation treated with anti-CD28dAb. Methods Skin from BALB/cJ donors was grafted onto C56BL/6 recipients which were treated with or without 0.2mg anti-CD4 and 10μg anti-CD8 one day prior to transplant and with or without 100μg anti-CD28dAb on days 0, 2, 4, 6, and weekly thereafter. Mice were euthanized six weeks post-transplant and lymphoid cells were analyzed by flow cytometry. Results Anti-CD28dAb reversed lymphopenia-induced differentiation of memory CD4+ T cells in the spleen and lymph node compared to TCD alone. Mice treated with TCD+anti-CD28dAb exhibited significantly improved skin graft survival compared to anti-CD28dAb alone, which was also improved compared to no treatment. In addition, the expression of CD69 was reduced on CD4+ and CD8+ T cells in the spleen and lymph node from mice that received TCD+anti-CD28dAb compared to TCD alone. While a reduced frequency of CD4+FoxP3+ T cells was observed in anti-CD28dAb treated mice relative to untreated controls, this was balanced by an increased frequency of CD8+Foxp3+ T cells that was observed in the blood and kidney of mice given TCD+anti-CD28dAb compared to TCD alone. Discussion These data demonstrate that CD28 signaling impacts the differentiation of both CD4+ and CD8+ T cells during homeostatic reconstitution following lymphodepletion, resulting in a shift towards fewer activated memory T cells and more CD8+FoxP3+ T cells, a profile that may underpin the observed prolongation in allograft survival.
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49
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Copic D, Direder M, Klas K, Bormann D, Laggner M, Ankersmit HJ, Mildner M. Antithymocyte Globulin Inhibits CD8 + T Cell Effector Functions via the Paracrine Induction of PDL-1 on Monocytes. Cells 2023; 12:cells12030382. [PMID: 36766722 PMCID: PMC9913606 DOI: 10.3390/cells12030382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Antithymocyte globulins (ATG) are T cell-depleting antibodies used in solid organ transplantation for induction therapy in sensitized patients with a high risk of graft rejection. Previously described effects besides the depletion of T cells have suggested additional modes of action and identified further cellular targets. METHODS We examined the transcriptional changes arising in immune cells from human blood after ex vivo stimulation with ATG at the single-cell level to uncover additional mechanisms by which ATG regulates T cell activity and effector functions. FINDINGS Analysis of the paracrine factors present in the plasma of ATG-treated whole blood revealed high levels of chemokines and cytokines, including interferon-γ (IFN-γ). Furthermore, we identified an increase in the surface expression of the programmed death ligand 1 (PDL-1) on monocytes mediated by the released paracrine factors. In addition, we showed that this induction is dependent on the activation of JAK/STAT signaling via the binding of IFN-γ to interferon-γ receptor 1 (IFN-γR1). Lastly, we demonstrated that the modulation of the immune regulatory axis of programmed cell death protein 1 (PD1) on activated CD8+ T cells with PDL-1 found on monocytes mediated by ATG potently inhibits effector functions including the proliferation and granzyme B release of activated T cells. INTERPRETATION Together, our findings represent a novel mode of action by which ATG exerts its immunosuppressive effects.
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Affiliation(s)
- Dragan Copic
- Department of Thoracic Surgery, Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Martin Direder
- Department of Thoracic Surgery, Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Katharina Klas
- Department of Thoracic Surgery, Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Daniel Bormann
- Department of Thoracic Surgery, Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Maria Laggner
- Department of Thoracic Surgery, Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
- Correspondence: (H.J.A.); (M.M.); Tel.: +43-(0)1-40400-67770 (H.J.A.); +43-(0)1-40400-73507 (M.M.)
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Lazarettgasse 14, 1090 Vienna, Austria
- Correspondence: (H.J.A.); (M.M.); Tel.: +43-(0)1-40400-67770 (H.J.A.); +43-(0)1-40400-73507 (M.M.)
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50
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Storci G, Barbato F, Ricci F, Tazzari PL, De Matteis S, Tomassini E, Dicataldo M, Laprovitera N, Arpinati M, Ursi M, Maffini E, Campanini E, Dan E, Manfroi S, Santi S, Ferracin M, Bonafe M, Bonifazi F. Pre-transplant CD69+ extracellular vesicles are negatively correlated with active ATLG serum levels and associate with the onset of GVHD in allogeneic HSCT patients. Front Immunol 2023; 13:1058739. [PMID: 36713433 PMCID: PMC9880409 DOI: 10.3389/fimmu.2022.1058739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/06/2022] [Indexed: 01/15/2023] Open
Abstract
Graft versus host disease (GVHD) is a major complication of allogeneic hematopoietic stem cell transplantation (HSCT). Rabbit anti-T lymphocyte globulin (ATLG) in addition to calcineurin inhibitors and antimetabolites is a suitable strategy to prevent GVHD in several transplant settings. Randomized studies already demonstrated its efficacy in terms of GVHD prevention, although the effect on relapse remains the major concern for a wider use. Tailoring of ATLG dose on host characteristics is expected to minimize its side effects (immunological reconstitution, relapse, and infections). Here, day -6 to day +15 pharmacokinetics of active ATLG serum level was first assayed in an explorative cohort of 23 patients by testing the ability of the polyclonal serum to bind antigens on human leukocytes. Significantly lower levels of serum active ATLG were found in the patients who developed GVHD (ATLG_AUCCD45: 241.52 ± 152.16 vs. 766.63 +/- 283.52 (μg*day)/ml, p = 1.46e-5). Consistent results were obtained when the ATLG binding capacity was assessed on CD3+ and CD3+/CD4+ T lymphocytes (ATLG_AUCCD3: 335.83 ± 208.15 vs. 903.54 ± 378.78 (μg*day)/ml, p = 1.92e-4; ATLG_AUCCD4: 317.75 ± 170.70 vs. 910.54 ± 353.35 (μg*day)/ml, p = 3.78e-5. Concomitantly, at pre-infusion time points, increased concentrations of CD69+ extracellular vesicles (EVs) were found in patients who developed GVHD (mean fold 9.01 ± 1.33; p = 2.12e-5). Consistent results were obtained in a validation cohort of 12 additional ATLG-treated HSCT patients. Serum CD69+ EVs were mainly represented in the nano (i.e. 100 nm in diameter) EV compartment and expressed the leukocyte marker CD45, the EV markers CD9 and CD63, and CD103, a marker of tissue-resident memory T cells. The latter are expected to set up a host pro-inflammatory cell compartment that can survive in the recipient for years after conditioning regimen and contribute to GVHD pathogenesis. In summary, high levels of CD69+ EVs are significantly correlated with an increased risk of GVHD, and they may be proposed as a tool to tailor ATLG dose for personalized GVHD prevention.
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Affiliation(s)
- Gianluca Storci
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Francesco Barbato
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy,Department of Experimental, Diagnostic and Specialty Medicine (DIMES) University of Bologna, Bologna, Italy
| | - Francesca Ricci
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | | | - Enrica Tomassini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Michele Dicataldo
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy,Department of Experimental, Diagnostic and Specialty Medicine (DIMES) University of Bologna, Bologna, Italy
| | | | - Mario Arpinati
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Margherita Ursi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy,Department of Experimental, Diagnostic and Specialty Medicine (DIMES) University of Bologna, Bologna, Italy
| | - Enrico Maffini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Elena Campanini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Elisa Dan
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES) University of Bologna, Bologna, Italy
| | - Silvia Manfroi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Spartaco Santi
- Consiglio Nazionale delle Ricerche (CNR) Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Bologna, Italy,IRCCS, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Manuela Ferracin
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy,Department of Experimental, Diagnostic and Specialty Medicine (DIMES) University of Bologna, Bologna, Italy
| | - Massimiliano Bonafe
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy,Department of Experimental, Diagnostic and Specialty Medicine (DIMES) University of Bologna, Bologna, Italy
| | - Francesca Bonifazi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy,*Correspondence: Francesca Bonifazi,
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