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Maddur H, Wilson N, Patil P, Asrani S. Rejection in Liver Transplantation Recipients. J Clin Exp Hepatol 2024; 14:101363. [PMID: 38495462 PMCID: PMC10943490 DOI: 10.1016/j.jceh.2024.101363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/09/2024] [Indexed: 03/19/2024] Open
Abstract
Rejection following liver transplantation continues to impact transplant recipients although rates have decreased over time with advances in immunosuppression management. The diagnosis of rejection remains challenging with liver biopsy remaining the reference standard for diagnosis. Proper classification of rejection type and severity is imperative as this guides management and ultimately graft preservation. Future areas of promise include non-invasive testing for detection of rejection to reduce the morbidity associated with invasive testing and further advances in immunosuppression management to reduce toxicities associated with immunosuppression while minimizing rejection related morbidity.
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2
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Shizuku M, Kurata N, Jobara K, Fujimoto Y, Ogura Y. Clinical Outcomes of Administration of Rituximab for Desensitization in Liver Transplant Patients with Preformed Donor-Specific Antibodies: A Single-Center Experience. Ann Transplant 2023; 28:e941456. [PMID: 38098225 PMCID: PMC10729495 DOI: 10.12659/aot.941456] [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: 06/13/2023] [Accepted: 10/19/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND The management and fate of liver transplant (LT) recipients with preformed donor-specific antibodies (pDSA) remain controversial. The aim of this study was to evaluate the clinical impact of rituximab desensitization on pDSA in LT recipients. MATERIAL AND METHODS This retrospective observational study enrolled 120 LT patients aged ≥18 years. Patients with pDSA were administered 500 mg/body rituximab 1-21 days before LT, except for those who had an active infection or had insufficient time to receive rituximab. We allocated patients to groups with or without pDSA, and then divided patients with pDSA into rituximab (+) and rituximab (-) groups for further analysis. RESULTS Twenty-three patients (19.2%) with pDSA were identified. Of these, 18 received rituximab and 5 did not receive rituximab. No patients developed adverse events related to rituximab. In both groups, the levels of pDSA class I in all patients were decreased immediately after LT, whereas those of pDSA class II decreased slowly. There were no significant differences in pathology findings and overall survival between patients with pDSA who were rituximab (+) or rituximab (-), and between patients with or without pDSA. CONCLUSIONS Rituximab desensitization for LT patients with pDSA was managed successfully without significant complications. Due to the small sample size, we could not demonstrate the benefit of rituximab desensitization for LT patients compared with the rituximab (-) group. Additionally, clinical outcomes in patients with pDSA, with or without rituximab, were similar to those without pDSA. Rituximab desensitization might be not essential for LT.
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Affiliation(s)
- Masato Shizuku
- Department of Transplantation Surgery, Nagoya University Hospital, Nagoya, Aichi, Japan
- Department of Transplantation Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
- Department of Surgery, Renal Transplant Surgery, Aichi Medical University, Nagakute, Aichi, Japan
| | - Nobuhiko Kurata
- Department of Transplantation Surgery, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Kanta Jobara
- Department of Transplantation Surgery, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yasuhiro Fujimoto
- Department of Transplantation Surgery, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yasuhiro Ogura
- Department of Transplantation Surgery, Nagoya University Hospital, Nagoya, Aichi, Japan
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3
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Demir Z, Raynaud M, Aubert O, Debray D, Sebagh M, Duong Van Huyen JP, Del Bello A, Jolivet NC, Paradis V, Durand F, Muratot S, Lozach C, Chardot C, Francoz C, Kamar N, Sarnacki S, Coilly A, Samuel D, Vibert E, Féray C, Lefaucheur C, Loupy A. Identification of liver transplant biopsy phenotypes associated with distinct liver biological markers and allograft survival. Am J Transplant 2023:S1600-6135(23)00907-3. [PMID: 38097016 DOI: 10.1016/j.ajt.2023.12.007] [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: 06/26/2023] [Revised: 11/07/2023] [Accepted: 12/06/2023] [Indexed: 01/01/2024]
Abstract
The intricate association between histologic lesions and circulating antihuman leucocyte antigen donor-specific antibodies (DSA) in liver transplantation (LT) requires further clarification. We conducted a probabilistic, unsupervised approach in a comprehensively well-annotated LT cohort to identify clinically relevant archetypes. We evaluated 490 pairs of LT biopsies with DSA testing from 325 recipients transplanted between 2010 and 2020 across 3 French centers and an external cohort of 202 biopsies from 128 recipients. Unsupervised archetypal analysis integrated all clinico-immuno-histologic parameters of each biopsy to identify biopsy archetypes. The median time after LT was 1.17 (interquartile range, 0.38-2.38) years. We identified 7 archetypes distinguished by clinico-immuno-histologic parameters: archetype #1: severe T cell-mediated rejection (15.9%); #2: chronic rejection with ductopenia (1.8%); #3: architectural and microvascular damages (3.5%); #4: (sub)normal (55.9%); #5: mild T cell-mediated rejection (4.9%); #6: acute antibody-mediated rejection (6.5%); and #7: chronic rejection with DSA (11.4%). Cell infiltrates vary in the archetype. These archetypes were associated with distinct liver biological markers and allograft outcomes. These findings remained consistent when stratified using the patient's age or indications for LT, with good performance in the external cohort (mean highest probability assignment = 0.58, standard deviation ± 0.17). In conclusion, we have identified clinically meaningful archetypes, providing valuable insights into the intricate DSA-histology association, which may help standardize liver allograft pathology classification.
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Affiliation(s)
- Zeynep Demir
- Paris Translational Research Center for Organ Transplantation, Université de Paris Cité, INSERM, PARCC, Paris, France
| | - Marc Raynaud
- Paris Translational Research Center for Organ Transplantation, Université de Paris Cité, INSERM, PARCC, Paris, France
| | - Olivier Aubert
- Paris Translational Research Center for Organ Transplantation, Université de Paris Cité, INSERM, PARCC, Paris, France; Kidney Transplantation Department, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Dominique Debray
- Pediatric Hepatology and Liver Transplantation Unit, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Mylène Sebagh
- Pathology Department Paul-Brousse Hospital, Assistance Publique - Hôpitaux de Paris, Villejuif, France
| | - Jean-Paul Duong Van Huyen
- Pathology Department, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Arnaud Del Bello
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
| | - Nicolas Congy Jolivet
- Department of Immunology, Hôpital de Rangueil, CHU de Toulouse, Molecular Immunogenetics Laboratory, EA 3034, IFR150 (INSERM), Toulouse, France
| | - Valérie Paradis
- Pathology Department, Beaujon Hospital, Assistance Publique - Hôpitaux de Paris, Clichy, France
| | - François Durand
- Hepatology Department, Beaujon Hospital, Assistance Publique - Hôpitaux de Paris, Clichy, France
| | - Sophie Muratot
- Paris Translational Research Center for Organ Transplantation, Université de Paris Cité, INSERM, PARCC, Paris, France
| | - Cécile Lozach
- Department of Pediatric Radiology, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Christophe Chardot
- Department of Pediatric Surgery, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Claire Francoz
- Hepatology Department, Beaujon Hospital, Assistance Publique - Hôpitaux de Paris, Clichy, France
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France
| | - Sabine Sarnacki
- Department of Pediatric Surgery, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Audrey Coilly
- Hepatobiliary Center, Paul-Brousse Hospital, Assistance Publique - Hôpitaux de Paris, Inserm Paris-Saclay Research Unit 1193, Paris-Saclay University, Villejuif, France
| | - Didier Samuel
- Hepatobiliary Center, Paul-Brousse Hospital, Assistance Publique - Hôpitaux de Paris, Inserm Paris-Saclay Research Unit 1193, Paris-Saclay University, Villejuif, France
| | - Eric Vibert
- Hepatobiliary Center, Paul-Brousse Hospital, Assistance Publique - Hôpitaux de Paris, Inserm Paris-Saclay Research Unit 1193, Paris-Saclay University, Villejuif, France
| | - Cyrille Féray
- Hepatobiliary Center, Paul-Brousse Hospital, Assistance Publique - Hôpitaux de Paris, Inserm Paris-Saclay Research Unit 1193, Paris-Saclay University, Villejuif, France
| | - Carmen Lefaucheur
- Paris Translational Research Center for Organ Transplantation, Université de Paris Cité, INSERM, PARCC, Paris, France; Department of Nephrology and Kidney Transplantation, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Alexandre Loupy
- Paris Translational Research Center for Organ Transplantation, Université de Paris Cité, INSERM, PARCC, Paris, France; Kidney Transplantation Department, Necker enfants malades Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France.
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Al-Awadhi S, Raynaud M, Louis K, Bouquegneau A, Taupin JL, Aubert O, Loupy A, Lefaucheur C. Complement-activating donor-specific anti-HLA antibodies in solid organ transplantation: systematic review, meta-analysis, and critical appraisal. Front Immunol 2023; 14:1265796. [PMID: 37849755 PMCID: PMC10577173 DOI: 10.3389/fimmu.2023.1265796] [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: 07/23/2023] [Accepted: 09/07/2023] [Indexed: 10/19/2023] Open
Abstract
Introduction Several studies have investigated the impact of circulating complement-activating anti-human leukocyte antigen donor-specific antibodies (anti-HLA DSAs) on organ transplant outcomes. However, a critical appraisal of these studies and a demonstration of the prognostic value of complement-activating status over anti-HLA DSA mean fluorescence intensity (MFI) level are lacking. Methods We conducted a systematic review, meta-analysis and critical appraisal evaluating the role of complement-activating anti-HLA DSAs on allograft outcomes in different solid organ transplants. We included studies through Medline, Cochrane, Scopus, and Embase since inception of databases till May 05, 2023. We evaluated allograft loss as the primary outcome, and allograft rejection as the secondary outcome. We used the Newcastle-Ottawa Scale and funnel plots to assess risk of bias and used bias adjustment methods when appropriate. We performed multiple subgroup analyses to account for sources of heterogeneity and studied the added value of complement assays over anti-HLA DSA MFI level. Results In total, 52 studies were included in the final meta-analysis (11,035 patients). Complement-activating anti-HLA DSAs were associated with an increased risk of allograft loss (HR 2.77; 95% CI 2.33-3.29, p<0.001; I²=46.2%), and allograft rejection (HR 4.98; 95% CI 2.96-8.36, p<0.01; I²=70.9%). These results remained significant after adjustment for potential sources of bias and across multiple subgroup analyses. After adjusting on pan-IgG anti-HLA DSA defined by the MFI levels, complement-activating anti-HLA DSAs were significantly and independently associated with an increased risk of allograft loss. Discussion We demonstrated in this systematic review, meta-analysis and critical appraisal the significant deleterious impact and the independent prognostic value of circulating complement-activating anti-HLA DSAs on solid organ transplant risk of allograft loss and rejection.
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Affiliation(s)
- Solaf Al-Awadhi
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
| | - Marc Raynaud
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
| | - Kevin Louis
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Antoine Bouquegneau
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
- Department of Nephrology, Dialysis and Transplantation, Centre Hospitalier Universitaire (CHU) de Liège, Liège, Belgium
| | - Jean-Luc Taupin
- Department of Immunology and Histocompatibility, Centre Hospitalier Universitaire (CHU) Paris–GH St–Louis Lariboisière, Paris, France
| | - Olivier Aubert
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique – Hôpitaux de Paris, Paris, France
| | - Alexandre Loupy
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Necker Hospital, Assistance Publique – Hôpitaux de Paris, Paris, France
| | - Carmen Lefaucheur
- Université de Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR)-S970, Paris Cardiovascular Research Center (PARCC), Paris Translational Research Centre for Organ Transplantation, Paris, France
- Kidney Transplant Department, Saint-Louis Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France
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5
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Sachan D, Rajakumar A, Krishna G D, Rajalingam R, Rela M. Living Donor Liver transplantation in an alloimmunised patient: Immunological challenges and Management in Indian Settings. Transpl Immunol 2023; 79:101854. [PMID: 37210014 DOI: 10.1016/j.trim.2023.101854] [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: 11/01/2022] [Revised: 03/30/2023] [Accepted: 05/13/2023] [Indexed: 05/22/2023]
Abstract
Liver transplantation (LT) is often associated with hematological abnormalities with immune or non-immune etiologies and require timely diagnosis and interventions. We report a case of a patient suffering from non-alcoholic steato-hepatitis (NASH) related end stage liver disease (ESLD) with multiple red cell antibodies who underwent LT surgery. In postoperative phase, she developed immune hemolysis as well as acute antibody mediated rejection (AMR) which was managed with therapeutic plasma exchange and IVIG. The case highlights the need to develop an algorithm for red cell and HLA antibody screening in high-risk patients for timely detection and management.
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Affiliation(s)
- Deepti Sachan
- Department of Transfusion Medicine, Dr. Rela Institute & Medical Centre, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India
| | - Akila Rajakumar
- Liver Anesthesia & Intensive care, Dr. Rela Institute & Medical Centre, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India
| | - Deepthi Krishna G
- Department of Transfusion Medicine, Dr. Rela Institute & Medical Centre, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India.
| | - Rajesh Rajalingam
- HPB Surgery & Liver Transplantation, Institute of Liver Disease and Transplantation, Dr. Rela Institute & Medical Centre, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India
| | - Mohamed Rela
- HPB Surgery & Liver Transplantation, Institute of Liver Disease and Transplantation, Dr. Rela Institute & Medical Centre, Bharath Institute of Higher Education and Research, Chennai, Tamilnadu, India
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6
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Peters AL, Rogers M, Begum G, Sun Q, Fei L, Leino D, Hildeman D, Woodle ES. T-cell infiltrate intensity is associated with delayed response to treatment in late acute cellular rejection in pediatric liver transplant recipients. Pediatr Transplant 2023; 27:e14475. [PMID: 36691289 PMCID: PMC10121906 DOI: 10.1111/petr.14475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/21/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023]
Abstract
BACKGROUND Late acute cellular rejection (ACR) is associated with donor-specific antibodies (DSA) development, chronic rejection, and allograft loss. However, accurate predictors of late ACR treatment response are lacking. ACR is primarily T-cell mediated, yet B cells and plasma cells (PC) also infiltrate the portal areas during late ACR. To test the hypothesis that the inflammatory milieu is associated with delayed response (DR) to rejection therapy, we performed a single-center retrospective case-control study of pediatric late liver ACR using multiparameter immunofluorescence for CD4, CD8, CD68, CD20, and CD138 to identify immune cell subpopulations. METHODS Pediatric liver transplant recipients transplanted at <17 years of age and treated for biopsy-proven late ACR between January 2014 and 2019 were stratified into rapid response (RR) and DR based on alanine aminotransferase (ALT) normalization within 30 days of diagnosis. All patients received IV methylprednisolone as an initial rejection treatment. Immunofluorescence was performed on archived formalin-fixed paraffin embedded (FFPE) liver biopsy tissue. RESULTS Liver biopsies from 60 episodes of late ACR in 54 patients were included in the analysis, of which 33 were DR (55%). Anti-thymocyte globulin was only required in the DR group. The frequency of liver-infiltrating CD20+ and CD8+ lymphocytes and the prevalence of autoantibodies were higher in the DR group. In univariate logistic regression analysis, serum gamma-glutamyl transpeptidase (GGT) level at diagnosis, but not ALT, Banff score or presence of DSA, predicted DR. CONCLUSIONS Higher serum GGT level, presence of autoantibodies, and increased CD8+ T-cell infiltration portends DR in late ACR treatment in children.
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Affiliation(s)
- Anna L. Peters
- Department of Pediatrics, University of Cincinnati College of Medicine
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center
| | - Michael Rogers
- Department of Pediatrics, University of Cincinnati College of Medicine
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center
| | - Gousia Begum
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center
| | - Qin Sun
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center
| | - Lin Fei
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center
| | - Daniel Leino
- Division of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center
- Department of Pathology and Laboratory Medicine, University of Cincinnati
| | - David Hildeman
- Department of Pediatrics, University of Cincinnati College of Medicine
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - E. Steve Woodle
- Division of Transplantation, Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH
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7
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Goto R, Fukasaku Y, Ganchiku Y, Kawamura N, Watanabe M, Ota T, Hatanaka KC, Suzuki T, Shimamura T, Taketomi A. Post-transplant donor-specific anti-HLA antibodies with a higher mean fluorescence intensity are associated with graft fibrosis in pediatric living donor liver transplantation. Front Pediatr 2023; 11:1172516. [PMID: 37181419 PMCID: PMC10168538 DOI: 10.3389/fped.2023.1172516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 04/07/2023] [Indexed: 05/16/2023] Open
Abstract
The roles of post-transplant anti-HLA donor specific antibody (DSA) in pediatric liver transplantation (LT), including therapeutic strategies, remain controversial. This study aimed to identify the risks of post-transplant DSA for graft fibrosis progression in pediatric living donor LT (LDLT). We retrospectively evaluated 88 LDLT pediatric cases between December 1995 and November 2019. DSAs were assessed with single antigen bead test. Graft fibrosis was histopathologically scored with METAVIR and the centrilobular sinusoidal fibrosis system. Post-transplant DSAs were detected in 37 (52.9%) cases at 10.8 (1.3-26.9) years post-LDLT. The histopathological examination of 32 pediatric cases with post-transplant DSA revealed that 7 (21.9%) with a high DSA-MFI (≥9,378) showed graft fibrosis progression (≥F2). No graft fibrosis was observed in the subjects with a low DSA-MFI. The risk factors for developing graft fibrosis in pediatric cases with post-transplant DSA were an older graft age (>46.5 years old), lower platelet count (<10.7 × 104/ml) and higher Fib4 index (>0.7807, recipient age; >1.8952, donor age). Limited efficacy of additional immunosuppressants was observed in DSA positive pediatric cases. In conclusion, pediatric cases with a high DSA-MFI and risk factors should undergo a histological examination. The appropriate treatment for post-transplant DSA in pediatric LT needs to be determined.
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Affiliation(s)
- Ryoichi Goto
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yasutomo Fukasaku
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yoshikazu Ganchiku
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Norio Kawamura
- Department of Transplant Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Masaaki Watanabe
- Department of Transplant Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Takuji Ota
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Kanako C. Hatanaka
- Center for Development of Advanced Diagnostics, Hokkaido University Hospital, Sapporo, Japan
| | - Tomomi Suzuki
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Tsuyoshi Shimamura
- Division of Organ Transplantation, Hokkaido University Hospital, Sapporo, Japan
| | - Akinobu Taketomi
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
- Department of Transplant Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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8
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Uchida T, Teraoka Y, Imamura M, Abe-Chayama H, Makokha GN, Hayes CN, Aikata H, Hamamura S, Ishida Y, Tateno C, Shirouzu T, Kawai S, Tanaka Y, Ohdan H, Okada S, Chayama K. A novel cDNA-uPA/SCID/Rag2 -/- /Jak3 -/- mouse model for hepatitis virus infection and reconstruction of human immune system. J Viral Hepat 2023; 30:262-272. [PMID: 36575861 DOI: 10.1111/jvh.13793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/26/2022] [Accepted: 11/20/2022] [Indexed: 12/29/2022]
Abstract
Although human hepatocyte-transplanted immunodeficient mice support infection with hepatitis viruses, these mice fail to develop viral hepatitis due to the lack of an adaptive immune system. In this study, we generated new immunodeficiency cDNA-urokinase-type plasminogen activator (uPA)/SCID/Rag2-/- /Jak3-/- mice and established a mouse model with both a humanized liver and immune system. Transplantation of human hepatocytes with human leukocyte antigen (HLA)-A24 resulted in establishment of a highly replaced liver in cDNA-uPA/SCID/Rag2-/- /Jak3-/- mice. These mice were successfully infected with hepatitis B virus (HBV) and hepatitis C virus (HCV) for a prolonged period and facilitate analysis of the effect of anti-HCV drugs. Administration of peripheral blood mononuclear cells (PBMCs) obtained from an HLA-A24 donor resulted in establishment of 22.6%-81.3% human CD45-positive mononuclear cell chimerism in liver-infiltrating cells without causing graft-versus-host disease in cDNA-uPA/SCID/Rag2-/- /Jak3-/- mice without human hepatocyte transplantation. When mice were transplanted with human hepatocytes and then administered HLA-A24-positive human PBMCs, an alloimmune response between transplanted human hepatocytes and PBMCs occurred, with production of transplanted hepatocyte-specific anti-HLA antibody. In conclusion, we succeeded in establishing a humanized liver/immune system characterized by an allo-reaction between transplanted human immune cells and human liver using a novel cDNA-uPA/SCID/Rag2-/- /Jak3-/- mouse. This mouse model can be used to generate a chronic hepatitis mouse model with a human immune system with application not only to hepatitis virus virology but also to investigation of the pathology of post-transplantation liver rejection.
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Affiliation(s)
- Takuro Uchida
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Yuji Teraoka
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Michio Imamura
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Hiromi Abe-Chayama
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,Center for Medical Specialist Graduate Education and Research, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Grace Naswa Makokha
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Clair Nelson Hayes
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Hiroshi Aikata
- Department of Gastroenterology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Satoko Hamamura
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,PhoenixBio Co., Ltd., Higashihiroshima, Japan
| | - Yuji Ishida
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,PhoenixBio Co., Ltd., Higashihiroshima, Japan
| | - Chise Tateno
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,PhoenixBio Co., Ltd., Higashihiroshima, Japan
| | - Takayuki Shirouzu
- Molecular Diagnostics Division, Wakunaga Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Shintaro Kawai
- Molecular Diagnostics Division, Wakunaga Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Yuka Tanaka
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Seiji Okada
- Division of Hematopoiesis, Joint Research Center for Human Retrovirus Infection and Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Kazuaki Chayama
- Research Center for Hepatology and Gastroenterology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,Collaborative Research Laboratory of Medical Innovation, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan.,RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Hiroshima Institute of Life Sciences, Hiroshima, Japan
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9
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Liu W, Wang ZL, Kang ZY, Xiao YL, Liu C, Li DH. Liver graft injury caused by de novo donor-specific HLA antibodies in pediatric liver transplant recipients with low, moderate, and high immunologic risk. Am J Surg 2023; 225:275-281. [PMID: 36116972 DOI: 10.1016/j.amjsurg.2022.09.007] [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: 01/19/2022] [Revised: 08/31/2022] [Accepted: 09/04/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND This study investigated the association between different risk levels of de novo donor-specific anti-human leukocyte antigen antibodies (dnDSAs) and liver graft injury after liver transplantation in pediatric patients. METHODS This retrospective cohort study enrolled 130 patients after liver transplantation. Subjects were divided into the following 4 groups according to the mean fluorescence intensity (MFI) of dnDSAs: high risk group(MFI ≥10,000), medium risk group(4000 ≤ MFI <10,000), low risk group(500 ≤ MFI <4000), and negative group(<500). Liver function indices were examined along with liver puncture biopsy,and the relationship between dnDSA risk level and liver injury after transplantation was assessed. RESULTS Pediatric liver transplant recipients showed significant differences in liver function (ALT, AST, GGT and Bilirubin) according to dnDSA risk level (P < 0.05), and no differences in cumulative incidences of rejection (P = 0.413) and liver fibrosis (P = 0.978) were observed among the number of dnDSAs group. There were differences in the cumulative incidences of antibody-mediated rejection (AMR) (P = 0.001) and T cell-mediated rejection (TCMR) (P = 0.003) across risk groups. The cumulative incidences of TCMR and liver fibrosis (P = 0.0001) were higher in the low-risk group than in the other 3 groups. There were no differences in graft survival rate (P = 0.846) across risk groups. CONCLUSION DnDSAs in pediatric liver transplant recipients are associated with liver transplant rejection and fibrosis. The level of dnDSAs in low risk group should not be disregarded. Routine detection of dnDSAs has clinical utility for noninvasive risk stratification in this population.
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Affiliation(s)
- Wei Liu
- Department of Blood Transfusion, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zheng-Lu Wang
- Department of Pathology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zhong-Yu Kang
- Department of Blood Transfusion, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Yan-Li Xiao
- Department of Blood Transfusion, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Chun Liu
- Department of Blood Transfusion, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Dai-Hong Li
- Department of Blood Transfusion, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China.
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10
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The New Challenge in Pediatric Liver Transplantation: Chronic Antibody-Mediated Rejection. J Clin Med 2022; 11:jcm11164834. [PMID: 36013073 PMCID: PMC9409831 DOI: 10.3390/jcm11164834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/07/2022] [Accepted: 08/16/2022] [Indexed: 12/21/2022] Open
Abstract
Antibody-mediated rejection (AMR) of liver allograft transplantation was considered as anecdotal for many decades. However recently, AMR has gained clinical awareness as a potential cause of chronic liver injury, leading to liver allograft fibrosis and eventual graft failure. (1) Methods: Literature on chronic AMR (cAMR) in pediatric post-liver transplant patients was reviewed for epidemiologic data, physiopathology, diagnosis, and treatment approaches. (2) Results: Accurate incidence of cAMR in pediatric liver transplantation remains unknown. Diagnostic criteria of cAMR were suggested by the Banff Working Group in 2016 and are based on standardized histopathological findings, C4d staining pattern, associated with the presence of donor-specific antibodies (DSA). Physio-pathological mechanisms are not clear for the technically difficult-to-obtain animal models reproducing cAMR. Treatment protocols are not established, being limited to case reports and case series, based on experience in ABO incompatible transplantation and kidney transplantation. Immunosuppression compliance with adequate dose adjustment may prevent cAMR. Conversion of Cyclosporine to Tacrolimus may improve pathological findings if treated in early phase. The association of steroids, Mycophenolate Mofetil (MMF) and mTOR inhibitors have shown some synergistic effects. Second-line treatments such as intravenous immunoglobulin (IVIG) and plasma exchange may decrease antibody titers based on ABO incompatible transplant protocols. The use of anti-CD20 (Rituximab) and proteasome inhibitors (Bortezomib) is controversial due to the lack of qualified studies. Therefore, multicenter randomized trials are needed to establish the best therapeutic strategy. In refractory cases, re-transplantation is the only treatment for allograft failure. (3) Conclusions: This literature review collects recent clinical, histopathological, and therapeutical advances of cAMR in liver allograft transplantation of pediatric patients. There are many physio-pathological aspects of cAMR to be clarified. Further efforts with multicenter prospective protocols to manage patients with cAMR are needed to improve its outcome.
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11
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Shin S, Lee M, Dente E, Yazigi N, Khan KM, Kaufman SS, Ahn J, Timofeeva OA, Ekong UD. Mismatch epitope load predicts de novo-DSA-free survival in pediatric liver transplantation. Pediatr Transplant 2022; 26:e14251. [PMID: 35279919 DOI: 10.1111/petr.14251] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/28/2022] [Accepted: 02/03/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Our knowledge of de novo anti-HLA donor-specific antibodies (dnDSA) in liver transplantation continues to be defined. We hypothesized that differences of HLA-DR/DQ mismatches can improve precision in alloimmune risk categorization and be applied to tailor immunosuppression. METHODS A retrospective chart review of 244 pediatric patients consecutively transplanted at our center between 2003 and 2019 was performed to identify patients tested for dnDSA. Records were queried for: demographics, pre-transplant diagnosis, biopsy-proven T-cell-mediated rejection (TCMR), radiology proven biliary complications, tacrolimus trough levels, dnDSA characteristics, and HLA typing. The eplet mismatch analyses were performed using HLAMatchmaker™ 3.1. All statistical analyses were conducted using R software version 3.40. RESULTS There were 99 dnDSA-negative patients and 73 dnDSA-positive patients (n = 70 against class II and n = 3 against class I and II). ROC analysis identified optimal cutoff of eplet mismatch load for dnDSA and defined risk groups for an alloimmune outcome. Kaplan-Meier curves and log-rank tests showed high eplet mismatch load was associated with shorter dnDSA-free survival (log-rank p = .001). Multivariable Cox regression models showed that tacrolimus coefficient of variation and tacrolimus mean levels were significantly associated with dnDSA-free survival (p < .001 and p = .036). Fisher's exact test showed that dnDSA was associated with an increased likelihood of TCMR (OR 14.94; 95% CI 3.65 - 61.19; p < .001). Patients without TCMR were more likely to have dnDSA to HLA-DQ7 and less likely to have dnDSA to HLA-DQ2 (p = .03, p = .080). CONCLUSIONS Mismatched epitope load predicts dnDSA-free survival in pediatric liver transplant, while dnDSA specificity may determine alloimmune outcome.
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Affiliation(s)
- Stephanie Shin
- Georgetown University School of Medicine, Washington, District of Columbia, USA
| | - Margaret Lee
- Georgetown University School of Medicine, Washington, District of Columbia, USA
| | - Elizabeth Dente
- Georgetown University School of Medicine, Washington, District of Columbia, USA
| | - Nada Yazigi
- Georgetown University School of Medicine, Washington, District of Columbia, USA.,Medstar Georgetown Transplant Institute, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Khalid M Khan
- Georgetown University School of Medicine, Washington, District of Columbia, USA.,Medstar Georgetown Transplant Institute, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Stuart S Kaufman
- Georgetown University School of Medicine, Washington, District of Columbia, USA.,Medstar Georgetown Transplant Institute, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Jaeil Ahn
- Department of Biostatistics, Bioinformatics, & Biomathematics, Georgetown University, Washington, District of Columbia, USA
| | - Olga A Timofeeva
- Georgetown University School of Medicine, Washington, District of Columbia, USA.,Histocompatibility Laboratory, Department of Pathology & Laboratory Medicine, Georgetown University, Washington, District of Columbia, USA
| | - Udeme D Ekong
- Georgetown University School of Medicine, Washington, District of Columbia, USA.,Medstar Georgetown Transplant Institute, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
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12
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Zorzetti N, Lauro A, Khouzam S, Marino IR. Immunosuppression, Compliance, and Tolerance After Orthotopic Liver Transplantation: State of the Art. EXP CLIN TRANSPLANT 2022; 20:3-9. [PMID: 35384800 DOI: 10.6002/ect.mesot2021.l13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Orthotopic liver transplantation is the treatment of choice for several otherwise irreversible forms of acute and chronic liver diseases. Early implemented immunosuppressant regimens have had disappointing results with high rejection rates. However, new drugs have reduced the daily immunosuppression requirements, thereby improving graft and patient survival as well as kidney function. Liver rejection is a T-cell-driven immune response and is the active target of immunosuppressive agents. Immunosuppressants can be divided into pharmacological or biological drugs: the gold standard is the calcineurin inhibitors, steroids, mycophenolate mofetil, and mechanistic target of rapamycin inhibitors. Compliance with these agents is essential, although they can increase the risk of infections and neoplastic diseases. In some patients, graft tolerance can be achieved. Graft tolerance is defined as the absence of acute and chronic rejection in a graft, with normal function and histology in an immunosuppression-free, fully immunocompetent host, usually as the final result of a successful attempt at immunosuppression withdrawal. The occurrence of immunosuppressive-related complications has led to new protocols aimed at protecting renal function and preventing de novo cancer and dysmetabolic syndrome. The backbone of immunosuppression remains calcineurin inhibitors in association with other drugs, mainly over the short-term period. To avoid rejection and the side effects on renal dysfunction, de novo cancer, and cardiovascular syndrome, optimal long-term immunosuppressive therapy should be tailored in liver transplant recipients.
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Affiliation(s)
- Noemi Zorzetti
- From the Department of General Surgery, Ospedale A. Costa, Porretta Terme-Bologna, Italy
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13
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Abstract
PURPOSE OF REVIEW Liver transplantation (LT) is the treatment of end-stage chronic liver diseases, mainly decompensated cirrhosis and hepatocellular carcinoma. Biliary complications can be schematically classified into macroscopic versus microscopic lesions. Immune-related cholangiopathies include rejection, graft-versus-host disease (GVHD) and recurrence of pre-LT auto-immune biliary diseases, i.e. primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). Here, we review the various types of posttransplant immune-related cholangiopathies, and discuss their clinical implications, especially diagnostic issues. RECENT FINDINGS Recurrence of PBC and PSC after LT is increasingly well described in large cohorts and long-term follow-up. In this setting, the preventive effect of ursodeoxycholic acid on PBC recurrence, as well as the deleterious role of tacrolimus are now well documented. In addition, the significant negative impact of recurrent PBC on survival after LT has recently been demonstrated. With respect to rejection-associated biliary injury, a growing body of evidence is emerging on the role of anti-HLA antibody-mediated rejection. SUMMARY Immune-mediated cholangiopathies occurring after LT can be divided in two main nosologic groups: biliary lesions due to recurrence of PBC or PSC, or in the context of rejection, either acute or chronic, T-cell- or antibody-mediated. GVHD is very rare. Final diagnosis is strongly based on clinical context (indication for LT, delay since transplantation, biological abnormalities, imaging) but also and to an even greater extent on biopsy of liver graft. Clinico-pathological discussions are recommended, hearing in mind that diseases can be intertwined.
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14
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Dehghani SM, Shahramian I, Ayatollahi M, Parooie F, Salarzaei M, Bahmanyar M, Sargazi A, Delaramnasab M. The incidence and risk factors of chronic rejection in acutely rejected pediatric liver transplantation. RUSSIAN JOURNAL OF TRANSPLANTOLOGY AND ARTIFICIAL ORGANS 2021. [DOI: 10.15825/25/1995-1191-2021-4-26-31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background. Chronic graft rejection (CR) represents an increasing concern in pediatric liver transplantation (LT). Risk factors of CR in this population are uncertain. In present study, we aimed to ascertain if clinical parameters could predict the occurrence of CR in LT children.Methods. We retrospectively analyzed the results from 47 children who had experienced acute hepatic rejection in Namazee hospital, Shiraz, Iran during 2007–2017.Results. Out of 47 children, 22 (46.8%) and 25 (53.2%) were boys and girls respectively. Ascites, gastrointestinal bleeding, and spontaneous bacterial peritonitis were observed in 20 (44.4%), 14 (31.1%), and 4 (9.1%) respectively. Posttransplant vascular and biliary complications were observed in 3 (7%) and 4 (9.3%) cases respectively. The mean time from LT to normalization of liver enzymes was 14.2 ± 7.5 days. The mean of acute rejection episodes was 1.4 ± 0.6 (median = 1 (22, 46.8%), range of 1–3). Six (12.7%) patients experienced CR. The mean time from LT to CR was 75 ± 28.4 days. A significant association was found between CR and patients’ condition (being inpatient or outpatient) before surgery (P = 0.03). No significant relationship was found between CR and post-transplant parameters except for biliary complications (P = 0.01). Both biliary complication (RR = 33.7, 95% CI: 2.2–511, P = 0.01) and inpatient status (RR = 10.9, 95% CI: 1.1–102.5, P = 0.03) significantly increased the risk of CR.Conclusion. Being hospitalized at the time of LT, and development of biliary complications might predict risk factors for development of CR in LT children.
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Affiliation(s)
- S. M. Dehghani
- Shiraz Organ Transplantation Center, Nemazee Hospital, Shiraz University of Medical Sciences
| | - I. Shahramian
- Pediatric Gastroenterology and Hepatology Research Center, Zabol University of Medical Science
| | - M. Ayatollahi
- Shiraz Organ Transplantation Center, Nemazee Hospital, Shiraz University of Medical Sciences
| | - F. Parooie
- Pediatric Gastroenterology and Hepatology Research Center, Zabol University of Medical Science
| | - M. Salarzaei
- Pediatric Gastroenterology and Hepatology Research Center, Zabol University of Medical Science
| | | | - A. Sargazi
- Pediatric Gastroenterology and Hepatology Research Center, Zabol University of Medical Science
| | - M. Delaramnasab
- Pediatric Gastroenterology and Hepatology Research Center, Zabol University of Medical Science
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15
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Gül-Klein S, Hegermann H, Röhle R, Schmelzle M, Tacke F, Schöning W, Öllinger R, Dziodzio T, Maier P, Plewe JM, Horst D, Sauer IM, Pratschke J, Lachmann N, Eurich D. Donor-Specific Antibodies Against Donor Human Leukocyte Antigen are Associated with Graft Inflammation but Not with Fibrosis Long-Term After Liver Transplantation: An Analysis of Protocol Biopsies. J Inflamm Res 2021; 14:2697-2712. [PMID: 34188517 PMCID: PMC8236257 DOI: 10.2147/jir.s307778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 05/04/2021] [Indexed: 02/06/2023] Open
Abstract
Background Donor-specific antibodies (DSA) against donor human leukocyte antigen after liver transplantation, which are associated with histological changes, have been widely studied with respect to their sustained impact on transplant function. However, their long-term impact after liver transplantation remains unclear. Methods We performed a cross-sectional analysis from June 2016 to July 2017 that included all patients who presented themselves for scheduled follow-up after receiving a liver transplantation between September 1989 and December 2016. In addition to a liver protocol biopsy, patients were screened for human leukocyte antigen antibodies (HLAab) and donor-specific antibodies. Subsequently, the association between human leukocyte antigen antibodies, donor-specific antibodies, histologic and clinical features, and immunosuppression was analyzed. Results Analysis for human leukocyte antigen antibodies and donor-specific antibodies against donor human leukocyte antigen was performed for 291 and 271 patients. A significant association between higher inflammation grades and the presence of human leukocyte antigen antibodies and donor-specific antibodies was detected, while fibrosis stages remained unaffected. These results were confirmed by multivariate logistic regression for inflammation showing a significant increase for presence of human leukocyte antigen antibodies and donor-specific antibodies (OR: 4.43; 95% CI: 1.67–12.6; p=0.0035). Furthermore, the use of everolimus in combination with tacrolimus was significantly associated with the status of negative human leukocyte antigen antibodies and donor-specific antibodies. Viral etiology for liver disease, hepatocellular carcinoma (HCC) and higher steatosis grades of the graft were significantly associated with a lower rate of human leukocyte antigen antibodies. The impact of human leukocyte antigen antibodies and donor-specific antibodies against donor human leukocyte antigen was associated with higher levels of laboratory parameters, such as transaminases and bilirubin. Conclusion Donor-specific antibodies against donor human leukocyte antigen are associated with histological and biochemical graft inflammation after liver transplantation, while fibrosis seems to be unaffected. Future studies should validate these findings for longer observation periods and specific subgroups.
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Affiliation(s)
- Safak Gül-Klein
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Henriette Hegermann
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Robert Röhle
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Biometry and Clinical Epidemiology, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Coordinating Center for Clinical Studies, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Moritz Schmelzle
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Frank Tacke
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Hepatology & Gastroenterology, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Wenzel Schöning
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Robert Öllinger
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Tomasz Dziodzio
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Patrick Maier
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Julius M Plewe
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - David Horst
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Pathology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Igor Maximilian Sauer
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Biometry and Clinical Epidemiology, Berlin, Germany
| | - Johann Pratschke
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
| | - Nils Lachmann
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, HLA Laboratory, Institute of Transfusion Medicine, Histocompatibility and Immunogenetics, Charité - Universitätsmedizin, Berlin, Germany
| | - Dennis Eurich
- Charité - Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Berlin, Germany
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16
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Angiotensin II Type-1 Receptor Antibodies Are Associated With Active Allograft Dysfunction Following Pediatric Liver Transplantation. Transplantation 2021; 104:2547-2556. [PMID: 32101982 DOI: 10.1097/tp.0000000000003206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Angiotensin II type-1 receptor (AT1R) antibodies have been associated with rejection and allograft loss in solid organ transplantation and may act synergistically with HLA donor-specific antibodies (DSA). Our aims were to assess the prevalence of AT1R antibodies and determine if they were associated with allograft dysfunction in pediatric liver transplant recipients. METHODS We performed a retrospective, cross-sectional study of HLA DSA and AT1R antibodies in 2 cohorts of pediatric liver transplant recipients: a stable control cohort with normal allograft function (n = 70) who consented to have serum samples collected for research purposes during a routine clinic visit and a cohort with active allograft dysfunction (n = 9) whose serum samples were collected as part of clinical care. RESULTS AT1R antibodies >17 U/mL were detected in 29% of stable control patients and 89% of patients with active allograft dysfunction (P = 0.001). In stable control patients, AT1R antibodies were associated with younger age at transplant (P = 0.010), younger age at time of sample collection (P < 0.001), shorter interval since transplant (P = 0.090), and presence of HLA DSA (P = 0.003). AT1R antibodies in stable control patients were not associated with rejection or allograft loss. However, AT1R antibodies combined with HLA DSA in patients with active allograft dysfunction were associated with rejection and allograft loss. CONCLUSIONS Our results suggest that AT1R antibodies are more common in patients with active allograft dysfunction and may be a risk factor for worse outcomes. Further research is needed to longitudinally assess the clinical impact of HLA DSA and AT1R antibodies.
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17
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Yanagawa S, Tahara H, Shirouzu T, Kawai S, Tanaka Y, Ide K, Akimoto S, Ohdan H. Development of a humanized mouse model to analyze antibodies specific for human leukocyte antigen (HLA). PLoS One 2021; 16:e0236614. [PMID: 33544740 PMCID: PMC7864411 DOI: 10.1371/journal.pone.0236614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 01/21/2021] [Indexed: 11/20/2022] Open
Abstract
In organ transplantation, human leukocyte antigen (HLA)-mismatch grafts not only induce the activation of cellular mediated immune response but also the development of chronic antibody-mediated rejection due to the donor-specific anti-HLA antibody (DSA) produced by B cells and plasma cells interacting with the graft endothelium. Significant improvement in long-term survival after transplantation can be expected if antibody-mediated rejection due to the DSA can be overcome. However, the mechanism of producing or controlling the DSA remains to be elucidated. In recent decades, “humanized” mouse models have been widely used for the basic research of human immune systems, but a humanized mouse model to analyze the mechanism of DSA production has not been established yet. Thus, we aimed to create a humanized mouse using a severe immunodeficiency mouse (NSG mouse) administered with human peripheral blood mononuclear cells (PBMCs). Initially, we detected a very low level of human total-IgG and no anti-HLA antibodies (Abs) in these mice. In our next attempt, we mixed PBMCs of various HLA antigenic combinations with or without regulatory T cells and preconditioned them by culturing on feeder cells stably transfected with human CD40 ligand (h-CD40L) alone or with h-CD40L and human B cell activating factor (h-BAFF). They were subsequently co-cultured with the corresponding irradiated stimulator PBMCs, and all cells were administered into naïve NSG mice. Although all three humanized models had sufficient human total-IgG and anti-HLA antibody production, allospecific anti-HLA Ab production was prominently suppressed whereas non-specific anti-HLA Abs were sufficiently detected. Therefore, this novel humanized mouse model might be useful for analyzing the mechanism of anti-allogeneic human B cell tolerance induction.
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Affiliation(s)
- Senichiro Yanagawa
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroyuki Tahara
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- * E-mail:
| | - Takayuki Shirouzu
- Molecular Diagnostics Division, Wakunaga Pharmaceutical Co., Ltd., Osaka, Japan
| | - Shintaro Kawai
- Molecular Diagnostics Division, Wakunaga Pharmaceutical Co., Ltd., Osaka, Japan
| | - Yuka Tanaka
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kentaro Ide
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shuji Akimoto
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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18
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Beyzaei Z, Geramizadeh B, Bagheri Z, Karimzadeh S, Shojazadeh A. De Novo Donor Specific Antibody and Long-Term Outcome After Liver Transplantation: A Systematic Review and Meta-Analysis. Front Immunol 2020; 11:613128. [PMID: 33424868 PMCID: PMC7786049 DOI: 10.3389/fimmu.2020.613128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/13/2020] [Indexed: 12/23/2022] Open
Abstract
Background The impact of de novo anti-HLA donor-specific alloantibodies (DSA) which develop after long-term liver transplantation (LT) remains controversial and unclear. The aim of this study was to investigate the role of de novo DSAs on the outcome in LT. Methods We did a systematic review and meta-analysis of observational studies published until Dec 31, 2019, that reported de novo DSA outcome data (≥1 year of follow-up) after liver transplant. A literature search in the MEDLINE/PubMed, EMBASE, Cochrane Library, Scopus and Web of Science Core Collection databases was performed. Results Of 5,325 studies identified, 15 fulfilled our inclusion criteria. The studies which reported 2016 liver transplant recipients with de novo DSAs showed an increased complication risk, i.e. graft loss and chronic rejection (OR 3.61; 95% CI 1.94-6.71, P < 0.001; I2 58.19%), and allograft rejection alone (OR 6.43; 95% CI: 3.17-13.04; P < 0.001; I2 49.77%); they were compared to patients without de novo DSAs. The association between de novo DSAs and overall outcome failure was consistent across all subgroups and sensitivity analysis. Conclusions Our study suggested that de novo DSAs had a significant deleterious impact on the liver transplant risk of rejection. The routine detection of de novo DSAs may be beneficial as noninvasive biomarker-guided risk stratification.
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Affiliation(s)
- Zahra Beyzaei
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bita Geramizadeh
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Pathology, Medical School of Shiraz University, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Bagheri
- Department of Biostatistics, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sara Karimzadeh
- Shiraz Medical School Library, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Shojazadeh
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
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19
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Ünlü S, Lachmann N, Jara M, Ritschl PV, Wiering L, Eurich D, Denecke C, Biebl M, Chopra S, Gül-Klein S, Schöning W, Schmelzle M, Reinke P, Tacke F, Pratschke J, Öllinger R, Dziodzio T. Treatment of Anti-HLA Donor-Specific Antibodies Results in Increased Infectious Complications and Impairs Survival after Liver Transplantation. J Clin Med 2020; 9:jcm9123986. [PMID: 33317012 PMCID: PMC7763868 DOI: 10.3390/jcm9123986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/30/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023] Open
Abstract
Donor-specific anti-human leukocyte antigen antibodies (DSA) are controversially discussed in the context of liver transplantation (LT). We investigated the relationship between the presence of DSA and the outcome after LT. All the LTs performed at our center between 1 January 2008 and 31 December 2015 were examined. Recipients < 18 years, living donor-, combined, high-urgency-, and re-transplantations were excluded. Out of 510 LTs, 113 DSA-positive cases were propensity score-matched with DSA-negative cases based on the components of the Balance of Risk score. One-, three-, and five-year survival after LT were 74.3% in DSA-positive vs. 84.8% (p = 0.053) in DSA-negative recipients, 71.8% vs. 71.5% (p = 0.821), and 69.3% vs. 64.9% (p = 0.818), respectively. Rejection therapy was more often applied to DSA-positive recipients (n = 77 (68.1%) vs. 37 (32.7%) in the control group, p < 0.001). At one year after LT, 9.7% of DSA-positive patients died due to sepsis compared to 1.8% in the DSA-negative group (p = 0.046). The remaining causes of death were comparable in both groups (cardiovascular 6.2% vs. 8.0%; p = 0.692; hepatic 3.5% vs. 2.7%, p = 0.788; malignancy 3.5% vs. 2.7%, p = 0.788). DSA seem to have an indirect effect on the outcome of adult LTs, impacting decision-making in post-transplant immunosuppression and rejection therapies and ultimately increasing mortality due to infectious complications.
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Affiliation(s)
- Sinem Ünlü
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
- Institute for Transfusion Medicine, H&I Laboratory, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Nils Lachmann
- Institute for Transfusion Medicine, H&I Laboratory, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Maximilian Jara
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Paul Viktor Ritschl
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
- BIH Charité Clinician Scientist Program, Berlin Institute of Health (BIH), 10178 Berlin, Germany
| | - Leke Wiering
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Dennis Eurich
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Christian Denecke
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Matthias Biebl
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Sascha Chopra
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Safak Gül-Klein
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Wenzel Schöning
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Moritz Schmelzle
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Petra Reinke
- Department of Nephrology and Internal Intensive Medicine, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Johann Pratschke
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Robert Öllinger
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
| | - Tomasz Dziodzio
- Department of Surgery, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany; (S.Ü.); (M.J.); (P.V.R.); (L.W.); (D.E.); (C.D.); (M.B.); (S.C.); (S.G.-K.); (W.S.); (M.S.); (J.P.); (R.Ö.)
- Correspondence: ; Tel.: +48-(030)-450552001
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20
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Donor-specific antibodies in liver transplantation: challenges in diagnosis and determining clinical impact. Curr Opin Organ Transplant 2020; 25:549-554. [PMID: 33105198 DOI: 10.1097/mot.0000000000000825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Our understanding of the clinical impact of donor-specific antibodies in liver transplant recipients has evolved in recent years as outcomes for liver allografts have improved and advances in diagnostic testing have made recognition of antibody mediated rejection in transplant patients more sensitive. RECENT FINDINGS Two main types of donor-specific antibodies - preformed and de novo - have been reported in the literature to have a negative impact on graft survival, and researchers have been able to further identify subclasses of class II donor-specific antibodies as being the most clinically impactful. Furthermore, there is evidence that donor-specific antibody formation can augment cellular rejection in liver grafts and lead to worsened clinical outcomes. Recent data have shown a higher prevalence of donor-specific antibody formation than previously reported. SUMMARY This review explores the most recent literature regarding the clinical impact of both preformed and de-novo donor-specific antibodies and potential management guidelines for patients undergoing liver transplantation. The best practice guidelines for undergoing monitoring for donor-specific antibody formation and protocol biopsies in sensitized patients will depend on further multiinstitutional studies.
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21
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Tokodai K, Miyagi S, Nakanishi W, Fujio A, Kashiwadate T, Goto M, Unno M, Kamei T. Effects of re-augmenting maintenance immunosuppression on post-transplant donor-specific HLA antibodies in liver transplantation. Transpl Immunol 2020; 63:101334. [PMID: 32919028 DOI: 10.1016/j.trim.2020.101334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 09/05/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Donor-specific antibodies (DSAs) have various negative short- and long-term effects after organ transplantation. DSAs are prevalent in patients with insufficient immunosuppression; thus, even patients with stable conditions after liver transplantation should be under optimized immunosuppression. However, the effect of re-augmenting immunosuppression therapy for patients with insufficient immunosuppression remains unclear. In this study, we investigated the long-term changes and the effects of immunosuppression (IS) re-augmentation on the DSA status. METHODS Two DSA screenings were performed in 67 patients during long-term follow-up after liver transplantation. After the first screening, IS re-augmentation was performed in patients with consent. The effects of IS re-augmentation on the DSA status were analyzed using data of the serial DSA screenings. Negative conversion was defined as DSA positivity with MFI > 1000 converted to MFI < 1000. Improvement of DSA status was defined as either a 50% reduction of MFI or negative conversion. RESULTS The median interval between the first and second DSA screening was 50 months. Among 67 patients, 43 were positive for DSAs on the first screening. Among these 43 patients, 30 had minimal to no IS therapy at the time of the first screening. Among the 30 patients, IS re-augmentation was conducted in 19. A comparison between the patients with a re-augmented IS and those with a sustained minimized IS showed that the DSA levels significantly decreased in the former (63% (12/19) vs. 18% (2/11), p = 0.02). CONCLUSIONS The results of this study indicate that post-liver transplant IS re-augmentation had suppressive effects on the DSA status. However, the clinical significance of DSA-negative conversion and/or mean fluorescence intensity reduction needs to be further investigated through histological evaluation and/or graft survival during longer follow-up periods.
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Affiliation(s)
- Kazuaki Tokodai
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan.
| | - Shigehito Miyagi
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Wataru Nakanishi
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Atsushi Fujio
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Toshiaki Kashiwadate
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Masafumi Goto
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan; Division of Transplantation and Regenerative Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Michiaki Unno
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Takashi Kamei
- Department of Surgery, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
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22
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Willuweit K, Frey A, Bieniek L, Heinold A, Büchter M, Horn PA, Wedemeyer H, Herzer K. HLA class II donor specific antibodies are associated with graft cirrhosis after liver transplant independent of the mean fluorescence intensity level. BMC Gastroenterol 2020; 20:288. [PMID: 32854625 PMCID: PMC7457295 DOI: 10.1186/s12876-020-01427-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/16/2020] [Indexed: 11/18/2022] Open
Abstract
Background The importance of donor-specific antibodies (DSA) after liver transplantation (LT) for graft and patient survival is an ongoing controversy. So far it has not been elucidated when and in how far DSA are harmful for graft and patient survival. Therefore, we had the aim to investigate the association of DSA with complications after LT. Methods Data of 430 LT recipients were collected and statistically analyzed. Detection of HLA antibodies (Ab) was performed by Luminex assay. Results DSA were detected in 81 patients (18.8%). These were mainly HLA class II Ab (81.5%). HLA class II Ab show a higher MFI (median: 5.300) compared to HLA class I Ab (median: 2.300). There is no association between MFI levels and development of complications after LT. However, cirrhosis occurred significantly more often in DSA positive patients (18%) than in patients without detectable DSA (9%, P = 0.027). All DSA positive patients with cirrhosis of the graft showed HLA class II antibodies (OR: 3.028; 95% CI: 1.51–6.075; P = 0.002). Conclusion Occurrence of HLA class II DSA after LT is associated with graft cirrhosis and may indicate a higher risk to develop graft damage independent on MFI and requires an individualized risk management.
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Affiliation(s)
- Katharina Willuweit
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45122, Essen, Germany.
| | - Alexandra Frey
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45122, Essen, Germany
| | - Lisa Bieniek
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45122, Essen, Germany
| | - Andreas Heinold
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Matthias Büchter
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45122, Essen, Germany.,Department of Internal Medicine, St. Nikolaus Stiftshospital, Andernach Teaching Hospital, University of Bonn, Andernach, Germany
| | - Peter A Horn
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45122, Essen, Germany
| | - Kerstin Herzer
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45122, Essen, Germany
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23
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Madill-Thomsen K, Abouljoud M, Bhati C, Ciszek M, Durlik M, Feng S, Foroncewicz B, Francis I, Grąt M, Jurczyk K, Klintmalm G, Krasnodębski M, McCaughan G, Miquel R, Montano-Loza A, Moonka D, Mucha K, Myślak M, Pączek L, Perkowska-Ptasińska A, Piecha G, Reichman T, Sanchez-Fueyo A, Tronina O, Wawrzynowicz-Syczewska M, Więcek A, Zieniewicz K, Halloran PF. The molecular diagnosis of rejection in liver transplant biopsies: First results of the INTERLIVER study. Am J Transplant 2020; 20:2156-2172. [PMID: 32090446 DOI: 10.1111/ajt.15828] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 02/07/2020] [Accepted: 02/09/2020] [Indexed: 01/25/2023]
Abstract
Molecular diagnosis of rejection is emerging in kidney, heart, and lung transplant biopsies and could offer insights for liver transplant biopsies. We measured gene expression by microarrays in 235 liver transplant biopsies from 10 centers. Unsupervised archetypal analysis based on expression of previously annotated rejection-related transcripts identified 4 groups: normal "R1normal " (N = 129), T cell-mediated rejection (TCMR) "R2TCMR " (N = 37), early injury "R3injury " (N = 61), and fibrosis "R4late " (N = 8). Groups differed in median time posttransplant, for example, R3injury 99 days vs R4late 3117 days. R2TCMR biopsies expressed typical TCMR-related transcripts, for example, intense IFNG-induced effects. R3injury displayed increased expression of parenchymal injury transcripts (eg, hypoxia-inducible factor EGLN1). R4late biopsies showed immunoglobulin transcripts and injury-related transcripts. R2TCMR correlated with histologic rejection although with many discrepancies, and R4late with fibrosis. R2TCMR , R3injury , and R4late correlated with liver function abnormalities. Supervised classifiers trained on histologic rejection showed less agreement with histology than unsupervised R2TCMR scores. No confirmed cases of clinical antibody-mediated rejection (ABMR) were present in the population, and strategies that previously revealed ABMR in kidney and heart transplants failed to reveal a liver ABMR phenotype. In conclusion, molecular analysis of liver transplant biopsies detects rejection, has the potential to resolve ambiguities, and could assist with immunosuppressive management.
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Affiliation(s)
| | | | - Chandra Bhati
- Virginia Commonwealth University, Richmond, Virginia, USA
| | - Michał Ciszek
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Magdalena Durlik
- Department of Transplant Medicine, Nephrology and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Sandy Feng
- University of California San Francisco, San Francisco, California, USA
| | - Bartosz Foroncewicz
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | | | - Michał Grąt
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Krzysztof Jurczyk
- Department of Infectious Diseases, Hepatology and Liver Transplantation, Pomeranian Medical University, Szczecin, Poland
| | | | - Maciej Krasnodębski
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Geoff McCaughan
- Centenary Research Institute, Australian National Liver Transplant Unit, Royal Prince Alfred Hospital, The University of Sydney, Sydney, NSW, Australia
| | | | | | | | - Krzysztof Mucha
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Marek Myślak
- Department of Clinical Interventions, Department of Nephrology and Kidney, Transplantation, SPWSZ Hospital, Pomeranian Medical University, Szczecin, Poland
| | - Leszek Pączek
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | | | - Grzegorz Piecha
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | | | | | - Olga Tronina
- Department of Transplant Medicine, Nephrology and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Marta Wawrzynowicz-Syczewska
- Department of Infectious Diseases, Hepatology and Liver Transplantation, Pomeranian Medical University, Szczecin, Poland
| | - Andrzej Więcek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | - Krzysztof Zieniewicz
- Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Philip F Halloran
- Alberta Transplant Applied Genomics Centre, Edmonton, Alberta, Canada.,University of Alberta, Edmonton, Alberta, Canada
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24
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Cousin VL, Rougemont AL, Rubbia-Brandt L, Wildhaber BE, Villard J, Ferrari-Lacraz S, McLin VA. Peripheral Donor-specific Antibodies Are Associated With Histology and Cellular Subtypes in Protocol Liver Biopsies of Pediatric Recipients. Transplantation 2020; 104:1633-1643. [PMID: 32732841 DOI: 10.1097/tp.0000000000003099] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The cellular infiltrate in protocol liver biopsies (PB) following pediatric liver transplantation remains mostly uncharacterized, yet there is increasing concern about the role of inflammation and fibrosis in long-term liver allografts. We aimed to define cell types in PB and to analyze their relationship with donor-specific antibodies (DSA) and histological phenotype. METHODS PB were performed at least 1 year after transplantation. We identified 4 phenotypes: normal, fibrosis, inflammation, inflammation with fibrosis. Cell types were counted after immunostaining for CD3, CD4, CD8, CD68, CD20, MUM1, and FoxP3. RESULTS Forty-four patients underwent 1 PB between 2000 and 2015. Eleven percent (5/44) of PB displayed normal histology, 13.6% (6/44) fibrosis, 34.1% (15/44) inflammation, and 40.9% (18/44) inflammation and fibrosis. The main cell types in the portal tracts and lobules were CD3+ and CD68+ cells. Frequency of de novo DSA was 63% (27/44). The presence of CD8+ cells in the lobules was associated with fibrosis. Inflammation and fibrosis in PB were associated with the presence of circulating de novo DSA, number of de novo DSA, and C1q binding activity when compared to other phenotypes. CONCLUSIONS T cells (CD3+) and macrophages (CD68+) were the most prevalent cell-types in PB. In the presence of inflammation, portal tracts were enriched in CD3+, CD20+ but displayed fewer CD68+. This coincided with the presence and number of de novo DSA. How these cellular and humoral actors interact is unclear, but peripheral DSA may be a marker of immune cellular activity in the seemingly quiescent allograft.
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Affiliation(s)
- Vladimir L Cousin
- Swiss Pediatric Liver Center, Geneva University Hospitals, Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Geneva, Switzerland
| | - Anne-Laure Rougemont
- Division of Clinical Pathology, Geneva University Hospitals, Geneva, Switzerland
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Laura Rubbia-Brandt
- Division of Clinical Pathology, Geneva University Hospitals, Geneva, Switzerland
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Barbara E Wildhaber
- Swiss Pediatric Liver Center, Geneva University Hospitals, Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Geneva, Switzerland
- Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Geneva, Switzerland
| | - Jean Villard
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
- Transplantation Immunology Unit and National Reference Laboratory for Histocompatibility, Geneva University Hospital and Medical School, Geneva, Switzerland
| | - Sylvie Ferrari-Lacraz
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
- Transplantation Immunology Unit and National Reference Laboratory for Histocompatibility, Geneva University Hospital and Medical School, Geneva, Switzerland
| | - Valérie A McLin
- Swiss Pediatric Liver Center, Geneva University Hospitals, Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Geneva, Switzerland
- Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Geneva, Switzerland
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25
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Nilles KM, Levitsky J. Donor-Specific Antibodies in Liver Transplantation. Clin Liver Dis (Hoboken) 2020; 15:13-16. [PMID: 32104571 PMCID: PMC7041955 DOI: 10.1002/cld.871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 08/05/2019] [Indexed: 02/04/2023] Open
Abstract
http://aasldpubs.onlinelibrary.wiley.com/hub/journal/10.1002/(ISSN)2046-2484/video/15-1-reading-nilles a video presentation of this article Answer questions and earn https://www.wileyhealthlearning.com/Activity/7025330/disclaimerspopup.aspx.
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Affiliation(s)
- Kathy M. Nilles
- Department of Medicine and Surgery, Division of Gastroenterology and Hepatology, Comprehensive Transplant CenterNorthwestern University Feinberg School of MedicineChicagoIL
| | - Josh Levitsky
- Department of Medicine and Surgery, Division of Gastroenterology and Hepatology, Comprehensive Transplant CenterNorthwestern University Feinberg School of MedicineChicagoIL
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26
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Schluckebier D, Cousin VL, Petit LM, Belli D, Wildhaber B, Rougemont AL, Villard J, Ferrari-Lacraz S, McLin VA. Preformed and de novo DSA are associated with T-cell-mediated rejection in pediatric liver transplant recipients requiring clinically indicated liver biopsy. Pediatr Transplant 2020; 24:e13611. [PMID: 31682057 DOI: 10.1111/petr.13611] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 09/07/2019] [Accepted: 09/26/2019] [Indexed: 12/16/2022]
Abstract
Despite growing interest about the impact of donor-specific HLA antibodies (DSA) in LT limited data are available for pediatric recipients. Our aim was to perform a retrospective single-center chart review of children (0-16 years) having undergone LT between January 1, 2005 and December 31, 2017, to characterize DSA, to identify factors associated with the development of de novo DSA, and to analyze potential associations with the diagnosis of TCMR. Information on patient- and donor-characteristics and LB reports were analyzed retrospectively. Serum obtained before LT and at LB was analyzed for presence of recipient HLA antibody using Luminex® technology. MFI > 1000 was considered positive. In 63 pediatric LT recipients with a median follow-up of 72 months, the overall prevalence of de novo DSA was 60.3%. Most were directed against class II antigens (33/38, 86.8%). Preformed DSA were present in 30% of patients. Twenty-eight (28/63) patients (44.4%) presented at least one episode of TCMR, mostly (12/28, 43%) moderate (Banff 6-7). De novo DSA were significantly more frequent in patients with TCMR than in patients without (75% vs 48.6%, P = .03), and patients with preformed and de novo DSA had a significantly higher rate of TCMR than patients without any DSA (66.7% vs 20%, P = .02). Neither preformed DSA nor de novo DSA were associated with frequency or severity of TCMR. Recipients with lower weight at LT developed de novo DSA more frequently (P = .04). De novo DSA were highly prevalent in pediatric LT recipients. Although associated with the development of TCMR, they did not appear to impact the frequency or severity of TCMR or graft survival. Instead, de novo DSA may suggest a state of insufficient IS.
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Affiliation(s)
- Dominique Schluckebier
- Swiss Pediatric Liver Center, Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Vladimir L Cousin
- Swiss Pediatric Liver Center, Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Laetitia-Marie Petit
- Swiss Pediatric Liver Center, Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Dominique Belli
- Swiss Pediatric Liver Center, Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Barbara Wildhaber
- Division of Pediatric Surgery, Swiss Pediatric Liver Center, Geneva University Hospitals, Geneva, Switzerland
| | - Anne-Laure Rougemont
- Division of Clinical Pathology, Geneva University Hospitals, Geneva, Switzerland
| | - Jean Villard
- Immunology and Transplant Unit, Geneva University Hospitals, Geneva, Switzerland
| | | | - Valérie A McLin
- Swiss Pediatric Liver Center, Pediatric Gastroenterology, Hepatology, and Nutrition Unit, Geneva University Hospitals, Geneva, Switzerland
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Vionnet J, Sempoux C, Pascual M, Sánchez-Fueyo A, Colmenero J. Donor-specific antibodies in liver transplantation. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 43:34-45. [DOI: 10.1016/j.gastrohep.2019.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/18/2019] [Accepted: 09/30/2019] [Indexed: 12/22/2022]
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Wang J, Wang P, Wang S, Tan J. Donor-specific HLA Antibodies in Solid Organ Transplantation: Clinical Relevance and Debates. EXPLORATORY RESEARCH AND HYPOTHESIS IN MEDICINE 2019; 000:1-11. [DOI: 10.14218/erhm.2019.00012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Schiano TD, Florman S, Fiel MI. Recurrent Idiopathic Liver Allograft Failure. Am J Clin Pathol 2019; 152:369-376. [PMID: 31139817 DOI: 10.1093/ajcp/aqz044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Many transplant programs have had patients who develop idiopathic recurrent liver allograft failure, necessitating serial transplants, and are deemed to have refractory or recurrent rejection. The frequency and the etiology of this immunologic dysfunction have not been well characterized. METHODS Herein, we illustrate the case of a patient who required three retransplants over a period of 20 years for recurrent liver allograft failure. By extensively compiling the patient's many liver biopsy specimens and explants over time, we demonstrate that antibody-mediated rejection (AMR) was a major contributing factor from the outset. We conducted a review of the Scientific Registry for Transplant Recipients database to estimate the potential frequency of AMR. RESULTS As illustrated by this case, AMR has varied histologic findings in the setting of elevated donor-specific antibody titers. CONCLUSIONS The cause of recurrent allograft failure in this patient was likely a combination of acute cellular rejection and AMR, manifestations of likely underlying immune dysregulation. Pathologists and transplant physicians should recognize the variable histologic presentations of AMR, which is imperative for its timely intervention. This case demonstrates how difficult the diagnosis of AMR can be to make, highlighting the need for strong clinical suspicion in patients having difficult-to-treat rejection and recurrent allograft failure.
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Affiliation(s)
- Thomas D Schiano
- The Recanati-Miller Transplantation Institute, Icahn School of Medicine at Mount Sinai, New York, NY
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Sander Florman
- The Recanati-Miller Transplantation Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - M Isabel Fiel
- Department of Pathology, Molecular and Cell Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
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Laguna-Goya R, Suàrez-Fernández P, Paz-Artal E. Follicular helper T cells and humoral response in organ transplantation. Transplant Rev (Orlando) 2019; 33:183-190. [PMID: 31327572 DOI: 10.1016/j.trre.2019.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/17/2019] [Accepted: 06/28/2019] [Indexed: 02/07/2023]
Abstract
Antibody mediated rejection has been recognized as an important contributor to long-term graft loss in most solid organ transplants. Current immunosuppressive regimes are not capable of preventing anti-HLA antibody formation and eventual damage to the graft, and there is a need to develop drugs directed against novel targets to avoid graft allorecognition. In this review we introduce follicular helper T cells (Tfh), a subtype of lymphocyte specialized in helping B cells to differentiate into plasmablasts and produce class-switched antibodies. We focus on the role of Tfh in solid organ transplantation, what is known about Tfh and the production of alloantibodies, how current immunosuppressive therapies affect Tfh and what new molecules could be used to target Tfh in transplantation, with the goal of improving graft survival.
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Affiliation(s)
- R Laguna-Goya
- Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain; School of Medicine, Universidad Complutense de Madrid, Spain.
| | - P Suàrez-Fernández
- Instituto de investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain
| | - E Paz-Artal
- Immunology Department, Hospital Universitario 12 de Octubre, Madrid, Spain; Instituto de investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain; School of Medicine, Universidad Complutense de Madrid, Spain
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Wozniak LJ, Venick RS. Donor-specific antibodies following liver and intestinal transplantation: Clinical significance, pathogenesis and recommendations. Int Rev Immunol 2019; 38:106-117. [DOI: 10.1080/08830185.2019.1630404] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Laura J. Wozniak
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Robert S. Venick
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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ABO-Incompatible Adult Living Donor Liver Transplantation in the Era of Rituximab: A Systematic Review and Meta-Analysis. Gastroenterol Res Pract 2019; 2019:8589402. [PMID: 31285743 PMCID: PMC6594289 DOI: 10.1155/2019/8589402] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 05/07/2019] [Indexed: 12/17/2022] Open
Abstract
Aim The primary aim of this study is to compare the short- and long-term outcomes between ABO-incompatible (ABOi) adult living donor liver transplantation (ALDLT) with rituximab prophylaxis and ABO-compatible (ABOc) ALDLT. Background The strategy of ABOi liver transplantation (LT) was originated initially to increase the donor pool and to enable liver transplantation in emergency conditions. However, ABOi ALDLT remains a controversial approach in comparison to ABOc ALDLT. Methods PubMed, Embase, and the Cochrane Library study search were accomplished to recognize studies comparing ABOi and ABOc ALDLT. Meta-analyses were conducted based on the evaluation of heterogeneity using a fixed-effect model and a random-effect model to assess the short- and long-term outcomes following ABOi ALDLT with rituximab prophylaxis. Results Nine studies comprising a total of 3,922 patients (ABOi = 671 and ABOc = 3,251) were identified. There was no significant difference between ABOi and ABOc groups for 1-year, 3-year, and 5-year OS and graft survival, respectively. Moreover, 1-year and 3-year OS and DFS were similar between both groups for HCC patients. However, ABOi ALDLT had higher incidences of CMV infection, AMR, overall biliary complications, and biliary stricture than ABOc ALDLT and had other comparable postoperative complications. Conclusion Our meta-analysis included studies comparing ABOi and ABOc ALDLT after the introduction of rituximab in a desensitization protocol for ABOi ALDLT. The results of ABOi ALDLT were comparable with those of ABOc ALDLT. However, biliary complications, CMV infection, and AMR remain a concern in the era of rituximab.
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Dumortier J, Dedic T, Erard-Poinsot D, Rivet C, Guillaud O, Chambon-Augoyard C, Bosch A, Lachaux A, Couchonnal E, Thaunat O, Boillot O, Dubois V. Pregnancy and donor-specific HLA-antibody-mediated rejection after liver transplantation: “Liaisons dangereuses”? Transpl Immunol 2019; 54:47-51. [DOI: 10.1016/j.trim.2019.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 02/06/2019] [Accepted: 02/07/2019] [Indexed: 01/13/2023]
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Jucaud V, Shaked A, DesMarais M, Sayre P, Feng S, Levitsky J, Everly MJ. Prevalence and Impact of De Novo Donor-Specific Antibodies During a Multicenter Immunosuppression Withdrawal Trial in Adult Liver Transplant Recipients. Hepatology 2019; 69:1273-1286. [PMID: 30229989 DOI: 10.1002/hep.30281] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/09/2018] [Indexed: 01/07/2023]
Abstract
The development of human leukocyte antigen (HLA) donor-specific antibody/antibodies (DSA) is not well described in liver transplant (LT) patients undergoing immunosuppression (IS) withdrawal protocols despite the allograft risk associated with de novo DSA (dnDSA). We analyzed the development of dnDSA in 69 LT patients who received calcineurin inhibitor monotherapy and were enrolled in the ITN030ST study. Of these 69 patients, 40 stable patients were randomized to IS maintenance (n = 9) or IS minimization (n = 31). Nine of the 31 IS minimization patients achieved complete withdrawal and were free of IS. Among patients who achieved stable IS monotherapy 1 year after transplantation, the prevalence of dnDSA was 18.8%. Acute rejections and the biopsy-proven findings disqualifying patients from IS withdrawal attempt were factors associated with dnDSA development (P = 0.011 and P = 0.041, respectively). Among randomized patients, dnDSA prevalence was 51.7% after IS minimization and 66.7% in IS-free patients. dnDSA prevalence in patients on IS maintenance was 44.4%. dnDSA development during IS minimization was a risk factor for acute rejection (P = 0.015). The majority of dnDSA were against HLA-DQ antigens (78.7%). Conclusion. During the first year following transplantation, acute rejections increase the risk of developing dnDSA, so dnDSA positivity should be considered for IS withdrawal eligibility; during IS minimization, dnDSA development was associated with acute rejection, which prevented further IS withdrawal attempts.
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Affiliation(s)
| | | | | | - Peter Sayre
- Immune Tolerance Network, San Francisco, CA.,University of California San Francisco, San Francisco, CA
| | - Sandy Feng
- University of California San Francisco, San Francisco, CA
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Prevalence and Impact of Reformed and De Novo Anti-HLA Donor-Specific Antibodies in Liver Transplantation. Transplant Proc 2019; 51:424-428. [PMID: 30879557 DOI: 10.1016/j.transproceed.2019.01.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
INTRODUCTION The prevalence and impact of pre-existing and de novo anti-HLA donor-specific antibodies (DSAs) after orthotopic liver transplantation (OLT) is still controversial. We investigated the prevalence of DSAs and their implication in the development of allograft dysfunction after OLT. PATIENTS AND METHODS A total of 65 liver transplant patients were tested for anti-HLA antibodies, with single antigen bead technology, before, 1, 3, 6, and 12 months after transplantation, and thereafter annually, along with other risk factors. Sixteen out of 65 patients (24.6%) had circulating pre-existing anti-HLA antibodies, and 4 of them (25%) had DSAs. All patients positive for anti-HLA antibodies (100%) presented allograft dysfunction. Fourteen out of 65 patients (21.5%) had circulating de novo DSAs, and 12 out of 14 (85.7%) presented allograft dysfunction. The investigated risk factors for allograft dysfunction were: recipient and donor age, time on the waiting list, cold ischemia time, cytomegalovirus infection, immunosuppression regimen, de novo DSAs, Model for End-Stage Liver Disease, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyl transpeptidase (GGT), direct bilirubin and total bilirubin peak post-transplant, and alkaline phosphatase. The multivariate analysis showed that de novo DSAs and time on the waiting list were independent risk factors for allograft dysfunction. CONCLUSION Our results show that de novo DSAs are an independent risk factor for allograft dysfunction, along with time on the waiting list.
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36
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Feng S, Bucuvalas JC, Demetris AJ, Burrell BE, Spain KM, Kanaparthi S, Magee JC, Ikle D, Lesniak A, Lozano JJ, Alonso EM, Bray RA, Bridges NE, Doo E, Gebel HM, Gupta NA, Himes RW, Jackson AM, Lobritto SJ, Mazariegos GV, Ng VL, Rand EB, Sherker AH, Sundaram S, Turmelle YP, Sanchez-Fueyo A. Evidence of Chronic Allograft Injury in Liver Biopsies From Long-term Pediatric Recipients of Liver Transplants. Gastroenterology 2018; 155:1838-1851.e7. [PMID: 30144432 PMCID: PMC6279538 DOI: 10.1053/j.gastro.2018.08.023] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 07/26/2018] [Accepted: 08/08/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS A substantial proportion of pediatric liver transplant recipients develop subclinical chronic allograft injury. We studied whether there are distinct patterns of injury based on histopathologic features and identified associated immunologic profiles. METHODS We conducted a cross-sectional study of 157 stable, long-term pediatric recipients of transplanted livers (70 boys; > 6 years old at time of transplantation; mean, 8.9 ± 3.46 years after liver transplantation) who underwent liver biopsy analysis from August 13, 2012, through May 1, 2014. Participants had received livers from a living or deceased donor and had consistently normal results from liver tests. Liver biopsy specimens were scored by a central pathologist; an unsupervised hierarchical cluster analysis of histologic features was used to sort biopsy samples into 3 clusters. We conducted transcriptional and cytometric analyses of liver tissue samples and performed a systems biology analysis that incorporated clinical, serologic, histologic, and transcriptional data. RESULTS The mean level of alanine aminotransferase in participants was 27.6 ± 14.57 U/L, and the mean level of γ-glutamyl transferase was 17.4 ± 7.93 U/L. Cluster 1 was characterized by interface activity (n = 34), cluster 2 was characterized by periportal or perivenular fibrosis without interface activity (n = 45), and cluster 3 had neither feature (n = 78). We identified a module of genes whose expression correlated with levels of alanine aminotransferase, class II donor-specific antibody, portal inflammation, interface activity, perivenular inflammation, portal and perivenular fibrosis, and cluster assignment. The module was enriched in genes that regulate T-cell-mediated rejection (TCMR) of liver and other transplanted organs. Functional pathway analysis showed overrepresentation of TCMR gene sets for cluster 1 but not clusters 2 or 3. CONCLUSION In an analysis of biopsies from an apparently homogeneous group of stable, long-term pediatric liver transplant recipients with consistently normal liver test results, we found evidence of chronic graft injury (inflammation and/or fibrosis). Biopsy samples with interface activity had a gene expression pattern associated with TCMR.
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Affiliation(s)
- Sandy Feng
- Division of Transplantation, Department of Surgery, University of California San Francisco, San Francisco, California.
| | - John C. Bucuvalas
- Pediatric Liver Care Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | | | | | | | | | - John C. Magee
- Section of Transplant Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - Andrew Lesniak
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA
| | - Juan J. Lozano
- Biomedical Research Center in Hepatic and Digestive Diseases, Carlos III Health Institute, Barcelona, Spain
| | - Estella M. Alonso
- Siragusa Transplantation Center, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL
| | - Robert A. Bray
- Department of Pathology, Emory University Hospital, Atlanta, GA
| | - Nancy E. Bridges
- Transplantation Branch; Division of Allergy, Immunology, and Transplantation, National Institute of Allergy and Infectious Diseases, Rockville, MD
| | - Edward Doo
- Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD; Department of Pathology, Emory University Hospital, Atlanta, GA
| | - Howard M. Gebel
- Department of Pathology, Emory University Hospital, Atlanta, GA
| | - Nitika A. Gupta
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
| | - Ryan W. Himes
- Section of Gastroenterology, Hepatology, and Nutrition, Texas Children’s Hospital, Houston, TX
| | - Annette M. Jackson
- Division of Immunogenetics and Transplantation Immunology, Department of Medicine, Johns Hopkins University, Baltimore, MD
| | - Steven J. Lobritto
- Center for Liver Diseases and Transplantation, Department of Surgery, Columbia University Medical Center, New York, NY
| | - George V. Mazariegos
- Hillman Center for Pediatric Transplantation, Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, PA
| | - Vicky L. Ng
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Transplant and Regenerative Medicine Center, Toronto, Ontario, Canada
| | - Elizabeth B. Rand
- Liver Transplant Program, The Children’s Hospital of Pennsylvania, Philadelphia, PA
| | - Averell H. Sherker
- Siragusa Transplantation Center, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL
| | - Shikha Sundaram
- Division of Gastroenterology, Hepatology, and Nutrition, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Yumirle P. Turmelle
- Division of Gastroenterology, Hepatology, and Nutrition, St. Louis Children’s Hospital, St. Louis, MO
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Advancing Transplantation: New Questions, New Possibilities in Kidney and Liver Transplantation. Transplantation 2018; 101 Suppl 2S:S1-S41. [PMID: 28125449 DOI: 10.1097/tp.0000000000001563] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Honda M, Sugawara Y, Kadohisa M, Shimata K, Sakisaka M, Yoshii D, Uto K, Hayashida S, Ohya Y, Yamamoto H, Yamamoto H, Inomata Y, Hibi T. Long-term Outcomes of ABO-incompatible Pediatric Living Donor Liver Transplantation. Transplantation 2018; 102:1702-1709. [PMID: 29620615 PMCID: PMC6166697 DOI: 10.1097/tp.0000000000002197] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 02/14/2018] [Accepted: 02/17/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND ABO-incompatible (ABOi) living donor liver transplantation (LDLT) has been performed to compensate for donor shortage. To date, few studies have reported detailed B-cell desensitization protocols and long-term outcomes of ABOi pediatric LDLT. METHODS Twenty-nine pediatric ABOi LDLT recipients were retrospectively analyzed. We compared the clinical outcomes between ABOi (n = 29) and non-ABOi (n = 131) pediatric LDLT recipients. Furthermore, we evaluated the safety and efficacy of our rituximab-based regimen for ABOi pediatric LDLT (2 ≤ age < 18; n = 10). RESULTS There were no significant differences in the incidence of infection, vascular complications, biliary complications, and acute cellular rejection between ABOi and non-ABOi groups. The cumulative graft survival rate at 1, 3, and 5 years for non-ABOi group were 92.1%, 87.0%, and 86.1%, and those for ABOi group were 82.8%, 82.8%, and 78.2%, respectively. Rituximab-based desensitization protocol could be performed safely, and reduced CD19+ lymphocyte counts effectively. Although rituximab-treated ABOi group showed comparable clinical outcomes and graft survival rate, 2 patients developed antibody-mediated rejection. CONCLUSIONS ABOi LDLT is a feasible option for pediatric end-stage liver disease patients. However, it should be noted that current desensitization protocol does not completely prevent the onset of antibody-mediated rejection in several cases.
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Affiliation(s)
- Masaki Honda
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yasuhiko Sugawara
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Masashi Kadohisa
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Keita Shimata
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Masataka Sakisaka
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Daiki Yoshii
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Keiichi Uto
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shintaro Hayashida
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuki Ohya
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hidekazu Yamamoto
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hirotoshi Yamamoto
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yukihiro Inomata
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Taizo Hibi
- Department of Transplantation and Pediatric Surgery, Postgraduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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Vandevoorde K, Ducreux S, Bosch A, Guillaud O, Hervieu V, Chambon-Augoyard C, Poinsot D, André P, Scoazec JY, Robinson P, Boillot O, Dubois V, Dumortier J. Prevalence, Risk Factors, and Impact of Donor-Specific Alloantibodies After Adult Liver Transplantation. Liver Transpl 2018; 24:1091-1100. [PMID: 29665189 DOI: 10.1002/lt.25177] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 03/19/2018] [Accepted: 03/31/2018] [Indexed: 02/06/2023]
Abstract
The incidence and impact of anti-human leukocyte antigen donor-specific alloantibodies (DSAs) developing after liver transplantation (LT) remains controversial and not extensively studied. The aim of the present study was to assess the incidence of DSAs, to identify risk factors for the development of DSAs, and to understand the impact of DSAs in a large population of adult LT recipients. This single-center retrospective study included all adult patients who underwent a first LT between 2000 and 2010 in our center. The study population mainly consisted of male patients, the mean age was 52.4 years, and the main indication was alcoholic cirrhosis (54.1%). From the 297 patients included in the cross-sectional study, 14 (4.7%) had preformed DSAs, and 59 (19.9%) presented de novo DSAs (12.2% at 1 year, 13.4% at 5 years, and 19.5% at 10 years). Multivariate analysis found that female donor sex (hazard ratio [HR], 1.50; 95% confidence interval [CI], 1.12-2.01; P = 0.01) and delay between LT and DSA screening (HR, 1.10; 95% CI, 1.01-1.20; P = 0.03) were associated with occurrence of de novo DSAs. From the 190 patients included in the subgroup longitudinal analysis, exposure to tacrolimus (mean trough level during the periods 0-2 years and 0-3 years) was significantly lower for patients having DSAs at 5 years. Concerning histology, only acute rejection (P = 0.04) and portal fibrosis ≥2 (P = 0.02) were more frequent at 1 year for patients with DSAs. Patient survival and graft survival were not significantly different according to the presence or not of DSAs at 1 year. Among the 44 patients who had de novo or persistent preformed DSAs, the diagnosis of antibody-mediated rejection was made in 4 (9.1%) patients after 1, 47, 61, and 74 months following LT. In conclusion, the results of the present study suggest that DSAs are observed in a minority of LT adult patients, with limited overall impact on graft and patient outcome.
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Affiliation(s)
- Katia Vandevoorde
- Unité de Transplantation Hépatique, Hospices Civils de Lyon, Lyon, France
| | - Stéphanie Ducreux
- Etablissement Français du Sang, Laboratoire d'Histocompatibilité, Lyon, France
| | - Alexie Bosch
- Unité de Transplantation Hépatique, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Olivier Guillaud
- Unité de Transplantation Hépatique, Hospices Civils de Lyon, Lyon, France
| | - Valérie Hervieu
- Service d'Anatomie Pathologique, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | | | - Domitille Poinsot
- Unité de Transplantation Hépatique, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Patrice André
- Laboratoire de Virologie, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Jean-Yves Scoazec
- Service d'Anatomie Pathologique, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Philip Robinson
- Direction de la Recherche Clinique et de l'Innovation, Hospices Civils de Lyon, Lyon, France
| | - Olivier Boillot
- Unité de Transplantation Hépatique, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Valérie Dubois
- Etablissement Français du Sang, Laboratoire d'Histocompatibilité, Lyon, France
| | - Jérôme Dumortier
- Unité de Transplantation Hépatique, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
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40
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Dao M, Habès D, Taupin JL, Mussini C, Redon MJ, Suberbielle C, Jacquemin E, Gonzales E, Guettier C. Morphological characterization of chronic antibody-mediated rejection in ABO-identical or ABO-compatible pediatric liver graft recipients. Liver Transpl 2018; 24:897-907. [PMID: 29704327 DOI: 10.1002/lt.25187] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 03/24/2018] [Accepted: 04/15/2018] [Indexed: 12/17/2022]
Abstract
This study aims to define the morphological profile associated with the presence of donor-specific antibodies (DSAs) and/or C4d immunostaining in ABO-identical or compatible pediatric liver grafts. Ten-year protocol liver graft biopsies performed at 131.3 ± 15.3 months after transplantation in 53 pediatric liver graft recipients were reviewed. Immunostaining for C4d was systematically performed and semiquantitatively analyzed. DSAs were concurrently quantified, and results were available for 44 patients. All biopsies demonstrated fibrotic changes with a mean liver allograft fibrosis score (LAFSc) of 5.1 ± 2.2. A total of 31 (58%) biopsies exhibited C4d positivity. DSAs were detected in 20 (45%) patients, and mean maximal mean fluorescence intensity was 12,977 ± 6731. LAFSc (6.3 ± 1.3 versus 3.9 ± 2.2; P = 0.008), perivenular fibrosis (2.7 ± 0.5 versus 1.3 ± 1.0; P < 0.001), and portal inflammation (1.4 ± 0.8 versus 0.3 ± 0.5; P = 0.009) were significantly higher in the double-DSA and C4d-positive group versus the double-negative group. We defined a histological scoring system from these results, which was integrated with the 2016 Banff definition and allowed reclassifying patients for the diagnosis of chronic active antibody-mediated rejection (cAMR; 11/53 versus 13/53). Diagnoses of probable cAMR according to Banff 2016 (n = 4) were unchanged, but 2 among the 9 patients classified as possible cAMR according to the 2016 Banff definition were excluded for this diagnostic when using our histological score. In conclusion, our results confirmed that perivenular fibrosis and portal inflammation in late pediatric liver graft biopsies are features of cAMR. Our histological score could improve the accuracy of the 2016 Banff definition for the diagnosis of cAMR. Liver Transplantation 24 897-907 2018 AASLD.
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Affiliation(s)
- Myriam Dao
- Pathology Department, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
- Université Paris Sud, Le Kremlin-Bicêtre, France
| | - Dalila Habès
- Pediatric Hepatology and Pediatric Liver Transplantation Unit, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
| | - Jean-Luc Taupin
- Immunology and Histocompatibility Department, Saint Louis Hospital, Paris, France
| | - Charlotte Mussini
- Pathology Department, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
| | - Marie-José Redon
- Pathology Department, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
| | - Caroline Suberbielle
- Immunology and Histocompatibility Department, Saint Louis Hospital, Paris, France
| | - Emmanuel Jacquemin
- Pediatric Hepatology and Pediatric Liver Transplantation Unit, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
- Université Paris Sud, Le Kremlin-Bicêtre, France
- INSERM, Unité Mixte de Recherche en Santé 1174, Université Paris Sud 11, Orsay, France
- Département Hospitalo-Universitaire Hepatinov, Villejuif, France
| | - Emmanuel Gonzales
- Pediatric Hepatology and Pediatric Liver Transplantation Unit, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
- Université Paris Sud, Le Kremlin-Bicêtre, France
- INSERM, Unité Mixte de Recherche en Santé 1174, Université Paris Sud 11, Orsay, France
- Département Hospitalo-Universitaire Hepatinov, Villejuif, France
| | - Catherine Guettier
- Pathology Department, Centre Hospitalier Universitaire Bicêtre, Le Kremlin-Bicêtre, France
- Université Paris Sud, Le Kremlin-Bicêtre, France
- Département Hospitalo-Universitaire Hepatinov, Villejuif, France
- INSERM, Unité 1193, Villejuif, France
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41
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Bouquegneau A, Loheac C, Aubert O, Bouatou Y, Viglietti D, Empana J, Ulloa C, Hassan Murad M, Legendre C, Glotz D, Jackson AM, Zeevi A, Schaub S, Taupin J, Reed EF, Friedewald JJ, Tyan DB, Süsal C, Shapiro R, Woodle ES, Hidalgo LG, O’Leary J, Montgomery RA, Kobashigawa J, Jouven X, Jabre P, Lefaucheur C, Loupy A. Complement-activating donor-specific anti-HLA antibodies and solid organ transplant survival: A systematic review and meta-analysis. PLoS Med 2018; 15:e1002572. [PMID: 29799874 PMCID: PMC5969739 DOI: 10.1371/journal.pmed.1002572] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 04/26/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Anti-human leukocyte antigen donor-specific antibodies (anti-HLA DSAs) are recognized as a major barrier to patients' access to organ transplantation and the major cause of graft failure. The capacity of circulating anti-HLA DSAs to activate complement has been suggested as a potential biomarker for optimizing graft allocation and improving the rate of successful transplantations. METHODS AND FINDINGS To address the clinical relevance of complement-activating anti-HLA DSAs across all solid organ transplant patients, we performed a meta-analysis of their association with transplant outcome through a systematic review, from inception to January 31, 2018. The primary outcome was allograft loss, and the secondary outcome was allograft rejection. A comprehensive search strategy was conducted through several databases (Medline, Embase, Cochrane, and Scopus). A total of 5,861 eligible citations were identified. A total of 37 studies were included in the meta-analysis. Studies reported on 7,936 patients, including kidney (n = 5,991), liver (n = 1,459), heart (n = 370), and lung recipients (n = 116). Solid organ transplant recipients with circulating complement-activating anti-HLA DSAs experienced an increased risk of allograft loss (pooled HR 3.09; 95% CI 2.55-3.74, P = 0.001; I2 = 29.3%), and allograft rejection (pooled HR 3.75; 95% CI: 2.05-6.87, P = 0.001; I2 = 69.8%) compared to patients without complement-activating anti-HLA DSAs. The association between circulating complement-activating anti-HLA DSAs and allograft failure was consistent across all subgroups and sensitivity analyses. Limitations of the study are the observational and retrospective design of almost all included studies, the higher proportion of kidney recipients compared to other solid organ transplant recipients, and the inclusion of fewer studies investigating allograft rejection. CONCLUSIONS In this study, we found that circulating complement-activating anti-HLA DSAs had a significant deleterious impact on solid organ transplant survival and risk of rejection. The detection of complement-activating anti-HLA DSAs may add value at an individual patient level for noninvasive biomarker-guided risk stratification. TRIAL REGISTRATION National Clinical Trial protocol ID: NCT03438058.
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Affiliation(s)
- Antoine Bouquegneau
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Nephrology, Dialysis and Transplantation, CHU de Liège, Liège, Belgium
| | - Charlotte Loheac
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
| | - Olivier Aubert
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Kidney Transplantation, Necker Hospital, Paris Descartes University, and Assistance Publique–Hôpitaux de Paris (AP–HP), Paris, France
| | - Yassine Bouatou
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Division of Nephrology, Geneva University Hospitals, Geneva, Switzerland
| | - Denis Viglietti
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Nephrology and Kidney Transplantation, Saint–Louis Hospital, Paris Diderot University, AP–HP, Paris, France
| | - Jean–Philippe Empana
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
| | - Camilo Ulloa
- Hospital Barros Luco Trudeau, Santiago, Chile et Clinica Alemana de Santiago, Chile
| | - Mohammad Hassan Murad
- Mayo Clinic Evidence–based Practice Center, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Christophe Legendre
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Kidney Transplantation, Necker Hospital, Paris Descartes University, and Assistance Publique–Hôpitaux de Paris (AP–HP), Paris, France
| | - Denis Glotz
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Nephrology and Kidney Transplantation, Saint–Louis Hospital, Paris Diderot University, AP–HP, Paris, France
| | - Annette M. Jackson
- Immunogenetics Laboratory, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Adriana Zeevi
- Department of Pathology, Surgery and Immunology at University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States of America
| | - Stephan Schaub
- Clinic for Transplantation Immunology and Nephrology, University Hospital Basel, Basel, Switzerland
| | - Jean–Luc Taupin
- Department of Immunology and Histocompatibility, CHU Paris–GH St–Louis Lariboisière, Paris, France
| | - Elaine F. Reed
- Department of Pathology and Laboratory Medicine, UCLA Immunogenetics Center, David Geffen School of Medicine, University of California, Los Angeles, California, United States of America
| | - John J. Friedewald
- Northwestern University Feinberg School of Medicine, Comprehensive Transplant Center, Division of Transplant Surgery, Chicago, Illinois, United states of America
| | - Dolly B. Tyan
- Division of Nephrology, Department of Medicine, Stanford University, Stanford, California, United States of America
| | - Caner Süsal
- Institute of Immunology, Heidelberg University, Department of Transplantation Immunology, Heidelberg, Germany
| | - Ron Shapiro
- Kidney/Pancreas Transplant Program, Mount Sinai Hospital, Recanati Miller Transplantation Institute, New York, New York, United States of America
| | - E. Steve Woodle
- Division of Transplantation, Department of Surgery, and Division of Hematology and Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Luis G. Hidalgo
- Department of Laboratory Medicine and Pathology and Alberta Transplant Applied Genomics Center, Edmonton, Alberta, Canada
| | - Jacqueline O’Leary
- Annette C. & Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, United States of America
| | - Robert A. Montgomery
- The NYU Transplant Institute, New York University Langone Medical Center, New York, New York, United States of America
| | - Jon Kobashigawa
- Cedars–Sinai Heart Institute, Los Angeles, California, United States of America
| | - Xavier Jouven
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Cardiology and Global Health Unit European Georges Pompidou Hospital, Paris
| | - Patricia Jabre
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- SAMU of Paris, Necker Hospital Paris, France
- Paris Descartes University, Paris, France
- AP–HP, Paris, France
| | - Carmen Lefaucheur
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Nephrology and Kidney Transplantation, Saint–Louis Hospital, Paris Diderot University, AP–HP, Paris, France
| | - Alexandre Loupy
- Paris Translational Research Center for Organ Transplantation INSERM Unit 970, Paris, France
- Department of Kidney Transplantation, Necker Hospital, Paris Descartes University, and Assistance Publique–Hôpitaux de Paris (AP–HP), Paris, France
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42
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Tokodai K, Miyagi S, Nakanishi C, Hara Y, Nakanishi W, Miyazawa K, Shimizu K, Murakami K, Sasano H, Goto M, Unno M, Kamei T. Association of post-transplant donor-specific HLA antibody with liver graft fibrosis during long-term follow-up after pediatric liver transplantation. Pediatr Transplant 2018. [PMID: 29542229 DOI: 10.1111/petr.13169] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aim of this study was to evaluate the significance of post-transplant DSA as a predictor of liver fibrosis during long-term follow-up after pediatric LT. We evaluated the histological findings in 18 LT recipients who underwent liver biopsy after DSA screening. Liver fibrosis was scored based on the METAVIR fibrosis staging. Patients were divided into 2 groups based on histological findings, and clinical characteristics among patients with liver fibrosis were assessed. Of 18 patients, 7 were included in the fibrosis group. No significant between-group differences were found regarding peritransplant characteristics, including age, sex, primary disease, ABO incompatibility, and immunosuppressive regimen. Episodes of acute rejection and non-adherence to immunosuppressive drugs were comparable between both groups. The MFI for anti-DR DSA and positive rate were significantly higher in the fibrosis group (1655 vs 216; P = .019, 86% vs 27%; P = .012, respectively). MFI for anti-DQ DSA was higher in the fibrosis group, but non-significantly (2052 vs 384; P = .46). Post-transplant anti-DR DSA is associated with graft fibrosis during long-term follow-up. This finding seems useful for the implementation of valid histological examinations of liver grafts for patients with higher MFI, especially for anti-DR DSA, after pediatric LT.
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Affiliation(s)
- Kazuaki Tokodai
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Shigehito Miyagi
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Chikashi Nakanishi
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasuyuki Hara
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Wataru Nakanishi
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koji Miyazawa
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kenji Shimizu
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keigo Murakami
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masafumi Goto
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.,Division of Transplantation and Regenerative Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Michiaki Unno
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takashi Kamei
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
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43
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Koch M, Marget M, Sterneck M, Fischer L, Thude H, Nashan B. Limited impact of pre-existing donor specific HLA-antibodies (DSA) on long term allograft survival after first adult liver transplantation. Hum Immunol 2018; 79:545-549. [PMID: 29669260 DOI: 10.1016/j.humimm.2018.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/10/2018] [Accepted: 04/13/2018] [Indexed: 12/30/2022]
Abstract
The relevance of pre-existing HLA-antibodies (HLA-Ab) in liver transplantation (LTx) is controversial. While livers are allocated without HLA match or preoperative crossmatch testing, several studies point to an impact of donor specific antibodies (DSA) for acute rejection, bile duct complications or even graft loss. To investigate the role of DSA in long term liver allograft survival we analysed 177 pre transplant sera of first LTx patients with Luminex single antigen technology defining a MFI of >1500 as positive. The analyses were done retrospectively, and the DSA results had no impact on graft acceptance or patients' therapy. Three year follow up was available for all patients. 77% of our patients had any HLA-Ab pre transplantation, 55 patients were transplanted with DSA by chance. Acute rejections or ischemic type bile duct lesions (ITBL) were not higher in the DSA group, but ITBL was associated with a higher donor age. There was no difference in long term graft function or survival in patients without HLA-Ab, with non DSA or with DSA (p = 0.712). We suggest that determination of pre-existing DSA in first LTx recipients is not appropriate and we conclude that pre-existing DSA in first LTx patients are not a contraindication for liver transplantation.
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Affiliation(s)
- Martina Koch
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.
| | - Matthias Marget
- Institute of Transfusion Medicine, HLA Laboratory, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Martina Sterneck
- I. Medical Clinic, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Lutz Fischer
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Hansjörg Thude
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Björn Nashan
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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44
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Biomarkers of immune tolerance in liver transplantation. Hum Immunol 2018; 79:388-394. [PMID: 29462637 DOI: 10.1016/j.humimm.2018.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/08/2018] [Accepted: 02/13/2018] [Indexed: 01/01/2023]
Abstract
The liver exhibits intrinsic immune tolerogenic properties that contribute to a unique propensity toward spontaneous acceptance when transplanted, both in animal models and in humans. Thus, in contrast to what happens after transplantation of other solid organs, several years following liver transplantation a significant subset of patients are capable of maintaining normal allograft function with histological integrity in the absence of immunosuppressive drug treatment. Significant efforts have been put into identifying sensitive and specific biomarkers of tolerance in order to stratify liver transplant recipients according to their need for immunosuppressive medication and their likelihood of being able to completely discontinue it. These biomarkers are currently being validated in prospective clinical trials of immunosuppression withdrawal both in Europe and in the United States. These studies have the potential to transform the clinical management of liver transplant recipients by mitigating, at least in part, the burden of lifelong immunosuppression.
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45
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Choudhary NS, Saraf N, Saigal S, Gautam D, Rastogi A, Goja S, Bhangui P, Srinivasan T, Yadav SK, Soin A. Revisiting chronic rejection following living donor liver transplantation in the tacrolimus era: A single center experience. Clin Transplant 2018; 32. [DOI: 10.1111/ctr.13161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/12/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Narendra Singh Choudhary
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Neeraj Saraf
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Sanjiv Saigal
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Dheeraj Gautam
- Department of Histopathology; Medanta, The Medicity; Gurgaon India
| | - Amit Rastogi
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Sanjay Goja
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Prashant Bhangui
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Thiagrajan Srinivasan
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Sanjay Kumar Yadav
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
| | - Arvinder Soin
- Institute of Liver Transplantation and Regenerative Medicine; Medanta, The Medicity; Gurgaon India
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46
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den Dulk AC, Shi X, Verhoeven CJ, Dubbeld J, Claas FHJ, Wolterbeek R, Brand-Schaaf SH, Verspaget HW, Sarasqueta AF, van der Laan LJW, Metselaar HJ, van Hoek B, Kwekkeboom J, Roelen DL. Donor-specific anti-HLA antibodies are not associated with nonanastomotic biliary strictures but both are independent risk factors for graft loss after liver transplantation. Clin Transplant 2017; 32. [DOI: 10.1111/ctr.13163] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Anne Claire den Dulk
- Department of Gastroenterology and Hepatology; Leiden University Medical Center; Leiden The Netherlands
| | - Xiaolei Shi
- Department of Gastroenterology and Hepatology; Erasmus MC-University Medical Center; Rotterdam The Netherlands
| | | | - Jeroen Dubbeld
- Department of Transplant Surgery; Leiden University Medical Center; Leiden The Netherlands
| | - Frans H. J. Claas
- Department of Immunohematology and Blood Transfusion; Section Immunogenetics and Transplantation Immunology; Leiden University Medical Center; Leiden The Netherlands
| | - Ron Wolterbeek
- Department of Medical Statistics and Bioinformatics; Leiden University Medical Center; Leiden The Netherlands
| | - Simone H. Brand-Schaaf
- Department of Immunohematology and Blood Transfusion; Section Immunogenetics and Transplantation Immunology; Leiden University Medical Center; Leiden The Netherlands
| | - Hein W. Verspaget
- Department of Gastroenterology and Hepatology; Leiden University Medical Center; Leiden The Netherlands
| | | | | | - Herold J. Metselaar
- Department of Gastroenterology and Hepatology; Erasmus MC-University Medical Center; Rotterdam The Netherlands
| | - Bart van Hoek
- Department of Gastroenterology and Hepatology; Leiden University Medical Center; Leiden The Netherlands
| | - Jaap Kwekkeboom
- Department of Gastroenterology and Hepatology; Erasmus MC-University Medical Center; Rotterdam The Netherlands
| | - Dave L. Roelen
- Department of Immunohematology and Blood Transfusion; Section Immunogenetics and Transplantation Immunology; Leiden University Medical Center; Leiden The Netherlands
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Abstract
PURPOSE OF REVIEW The review outlines the diagnosis, clinical implications, and treatment strategies for acute and chronic antibody-mediated rejection (AMR) after orthotopic liver transplantation (OLT). RECENT FINDINGS A combination of clinical work-up, histopathology, C4d staining, and donor-specific antibody (DSA) should be used to diagnose AMR. The differential diagnosis for idiopathic fibrosis now includes chronic AMR. Characterization of pathogenic DSA continues to progress. De-novo and persistent DSA, particularly of the IgG3 subtype, are associated with inferior long-term outcomes.The liver allograft may confer long-term immunologic benefits to the kidney allograft after simultaneous liver-kidney transplant.The more widespread use of rituximab has improved outcomes in ABO-incompatible OLT.Although larger long-term studies of treatment options are needed, compliance with tacrolimus-based immunosuppression and transfusion minimization are agreed upon preventive strategies. SUMMARY AMR has evolved into an established pathology in OLT recipients. Acute AMR may lead to early graft loss whereas chronic AMR results in progressive fibrosis if unrecognized. DSAs, likely in the setting of predisposing environmental factors, appear to play a role in T cell-mediated rejection and long-term graft outcomes.
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48
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Clerkin KJ, See SB, Farr MA, Restaino SW, Serban G, Latif F, Li L, Colombo PC, Vlad G, Ray B, Vasilescu ER, Zorn E. Comparative Assessment of Anti-HLA Antibodies Using Two Commercially Available Luminex-Based Assays. Transplant Direct 2017; 3:e218. [PMID: 29184907 PMCID: PMC5682763 DOI: 10.1097/txd.0000000000000734] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 08/09/2017] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Allospecific anti-HLA antibodies (Abs) are associated with rejection of solid organ grafts. The 2 main kits to detect anti-HLA Ab in patient serum are commercialized by Immucor and One Lambda/ThermoFisher. We sought to compare the performance of both platforms. METHODS Background-adjusted mean fluorescence intensity (MFI) values were used from both platforms to compare sera collected from 125 pretransplant and posttransplant heart and lung transplant recipients. RESULTS Most HLA class I (94.5%) and HLA class II (89%) Abs with moderate to high MFI titer (≥4000) were detected by both assays. A modest correlation was observed between MFI values obtained from the 2 assays for both class I (r = 0.3, r2 = 0.09, P < 0.0001) and class II Ab (r = 0.707, r2 = 0.5, P < 0.0001). Both assays detected anti-class I and II Ab that the other did not; however, no specific HLA allele was detected preferentially by either of the 2 assays. For a limited number of discrepant sera, dilution resulted in comparable reactivity profiles between the 2 platforms. CONCLUSIONS Immucor and One Lambda/ThermoFisher assays have a similar, albeit nonidentical, ability to detect anti-HLA Ab. Although the correlation between the assays was present, significant variances exist, some of which can be explained by a dilution-sensitive "prozone" effect.
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Affiliation(s)
- Kevin J. Clerkin
- Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY
| | - Sarah B. See
- Columbia Center for Translational Immunology, Columbia University College of Physicians and Surgeons, New York, NY
| | - Maryjane A. Farr
- Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY
| | - Susan W. Restaino
- Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY
| | - Geo Serban
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY
| | - Farhana Latif
- Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY
| | - Lingzhi Li
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY
| | - Paolo C. Colombo
- Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY
| | - George Vlad
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY
| | | | - Elena R. Vasilescu
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY
| | - Emmanuel Zorn
- Columbia Center for Translational Immunology, Columbia University College of Physicians and Surgeons, New York, NY
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49
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Chronic AMR in Liver Transplant: Validation of the 1-Year cAMR Score's Ability to Determine Long-term Outcome. Transplantation 2017; 101:2062-2070. [PMID: 28452922 DOI: 10.1097/tp.0000000000001802] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND A proposed chronic antibody-mediated rejection (AMR) score has recently predicted 50%10-year death-censored allograft loss in patients with donor-specific alloantibodies (DSA) mean florescence intensity (MFI) greater than 10 000 and requires confirmation in patients with lower MFI (1000-10 000). METHODS All patients who underwent liver transplantation from January 2000 to April 2009, had DSA (MFI ≥1000) in serum 10 to 14 months postliver transplantation, and had a protocolized liver biopsy were evaluated (n = 230). The previously proposed chronic AMR (cAMR) score was used to risk-stratify putative chronic AMR in DSA+ patients with MFI from 1000 to 10 000. RESULTS The MFI distribution of DSA+ recipients were as follows: 66% had MFI 1000 to 4999, 14% had MFI 5000 to 10 000, and 20% had MFI greater than 10 000. The cAMR score distribution on 1-year protocol liver biopsy found that 41% had a score less than 13; 27% a score of 13 to 27.5, and 32% a score greater than 27.5. MFI correlated with 1-year cAMR category (<13, 46% vs 21% and >27.5, 29% vs 42% when MFI was 1000-10 000 vs MFI >10 000; P = 0.047). In patients with a cAMR score less than 13, 10-year death-censored allograft survival was 96% to 100% regardless of MFI (P = NS). The risk of allograft loss increased in patients with a cAMR score greater than 13 (P = 0.004) in DSA+ patients with MFI 1000 to 10 000. DSA MFI greater than 10 000 versus MFI 1000 to 10 000 at 1 year was also more likely to persist at 5 years (95% vs 68%; P < 0.0001). CONCLUSIONS Validation of the previously proposed cAMR score in a separate cohort predicts death-censored long-term allograft failure in DSA+ patients regardless of MFI, and higher MFI at 1 year predicts DSA persistence at 5 years.
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Non-HLA Antibodies Impact on C4d Staining, Stellate Cell Activation and Fibrosis in Liver Allografts. Transplantation 2017; 101:2399-2409. [DOI: 10.1097/tp.0000000000001853] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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