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Miura S, Ueda K, Minakawa K, Nollet KE, Ikeda K. Prospects and Potential for Chimerism Analysis after Allogeneic Hematopoietic Stem Cell Transplantation. Cells 2024; 13:993. [PMID: 38891125 PMCID: PMC11172215 DOI: 10.3390/cells13110993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
Chimerism analysis after allogeneic hematopoietic stem cell transplantation serves to confirm engraftment, indicate relapse of hematologic malignancy, and attribute graft failure to either immune rejection or poor graft function. Short tandem repeat PCR (STR-PCR) is the prevailing method, followed by quantitative real-time PCR (qPCR), with detection limits of 1-5% and 0.1%, respectively. Chimerism assays using digital PCR or next-generation sequencing, both of which are more sensitive than STR-PCR, are increasingly used. Stable mixed chimerism is usually not associated with poor outcomes in non-malignant diseases, but recipient chimerism may foretell relapse of hematologic malignancies, so higher detection sensitivity may be beneficial in such cases. Thus, the need for and the type of intervention, e.g., immunosuppression regimen, donor lymphocyte infusion, and/or salvage second transplantation, should be guided by donor chimerism in the context of the feature and/or residual malignant cells of the disease to be treated.
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Affiliation(s)
- Saori Miura
- Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Sciences, Fukushima 960-8516, Japan
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Koki Ueda
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Keiji Minakawa
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Kenneth E. Nollet
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Kazuhiko Ikeda
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
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Nayyar A, Ahmed S. Densitometry of STR-PAGE for donor chimerism in acute leukemia's: A simple method for routine use. Pak J Med Sci 2024; 40:875-878. [PMID: 38827851 PMCID: PMC11140357 DOI: 10.12669/pjms.40.5.9216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/18/2024] [Accepted: 02/05/2024] [Indexed: 06/05/2024] Open
Abstract
Objective To evaluate a PCR based method of polyacrylamide gel electrophoresis of short tandem repeats and its quantification for detecting donor chimerism after haematopoietic stem cell transplantation in acute leukaemias. Methods The descriptive study was conducted at Genetic Resource Centre (GRC) Lab Rawalpindi from Feb 2018 - Nov 2020. A total of twenty patients with acute leukaemias having undergone HSCT were selected and assessed for the analysis of chimerism status. DNA extraction from the whole blood was done by chelex method and short tandem repeats were amplified by using conventional STR- PCR assay. Electrophoresis was carried out and 6% polyacrylamide gels were used for the resultant amplified DNA products and then followed by their densitometry. These patients had undergone HSCT from Pakistan Institute of Medical Science and Armed Forces Bone Marrow Transplant Centre. Results The peaks in the PAGE densitometry represented the donor chimerism in all post transplant samples of the patients. Conclusion Our study showed that densitometry of STR PCR PAGE is a useful and cheaper method for demonstration of donor chimerism in acute leukaemia patients having undergone HSCT. Hence this method can be a valuable option in the monitoring of chimerism status in these patients and therefore helps in preventing graft failure by fast and early treatment strategies for these patients.
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Affiliation(s)
- Ayesha Nayyar
- Ayesha Nayyar, M. Phil, PhD Department of Pathology, Islamic International Medical College, Riphah International University, Islamabad, Pakistan
| | - Suhaib Ahmed
- Suhaib Ahmed, FCPS, PhD Department of Pathology, Islamic International Medical College, Riphah International University, Islamabad, Pakistan
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Laurenzana I, De Luca L, Zoppoli P, Calice G, Sgambato A, Carella AM, Caivano A, Trino S. DNA methylation of hematopoietic stem/progenitor cells from donor peripheral blood to patient bone marrow: implications for allogeneic hematopoietic stem cell transplantation. Clin Exp Med 2023; 23:4493-4510. [PMID: 37029309 PMCID: PMC10725404 DOI: 10.1007/s10238-023-01053-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/20/2023] [Indexed: 04/09/2023]
Abstract
Allogeneic hematopoietic stem cell transplantation (AHSCT) is a life-saving treatment for selected hematological malignancies. So far, it remains unclear whether transplanted hematopoietic stem/progenitor cells (HSPCs) undergo epigenetic changes upon engraftment in recipient bone marrow (BM) after AHSCT and whether these changes might be useful in the transplant diagnostics. The purpose of this study was to characterize the whole genome methylation profile of HSPCs following AHSCT. Moreover, the relationship between the observed methylation signature and patient outcome was analyzed. Mobilized peripheral blood (mPB)-HSPCs from seven donors and BM-HSPCs longitudinally collected from transplanted patients with hematological malignancies up to one year from AHSCT (a total of twenty-eight samples) were analyzed using DNA methylation based-arrays. The obtained data showed that DNA methylation of mPB-HSPCs differs between young and adult donors and changes following HSPC engraftment in the BM of recipient patients. Looking at methylation in promoter regions, at 30 days post-AHSCT, BM-HSPCs showed a higher number of differentially methylated genes (DMGs) compared to those of mPB-HSPCs, with a prevalent hyper-methylation. These changes were maintained during all the analyzed time points, and methylation became like the donors after one year from transplant. Functional analysis of these DMGs showed an enrichment in cell adhesion, differentiation and cytokine (interleukin-2, -5 and -7) production and signaling pathways. Of note, DNA methylation analysis allowed to identify a potential "cancer/graft methylation signature" of transplant failure. It was evident in the latest available post-transplant BM-HSPC sample (at 160 days) and surprisingly already in early phase (at 30 days) in patients whose transplant was doomed to fail. Overall, the analysis of HSPC methylation profile could offer useful prognostic information to potentially assess engraftment success and predict graft failure in AHSCT.
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Affiliation(s)
- Ilaria Laurenzana
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy
| | - Luciana De Luca
- Unit of Clinical Pathology, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy
| | - Pietro Zoppoli
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy.
- Department of Molecular Medicine and Health Biotechnology, Università di Napoli Federico II, 80131, Naples, Italy.
| | - Giovanni Calice
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy
| | - Alessandro Sgambato
- Scientific Direction, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Angelo Michele Carella
- Department of Hematology and Stem Cell Transplant Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Antonella Caivano
- Unit of Clinical Pathology, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy.
| | - Stefania Trino
- Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS CROB), Rionero in Vulture, Italy
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Kricke S, Rao K, Adams S. The significance of mixed chimaerism and cell lineage chimaerism monitoring in paediatric patients post haematopoietic stem cell transplant. Br J Haematol 2022; 198:625-640. [PMID: 35421255 DOI: 10.1111/bjh.18190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 11/28/2022]
Abstract
Haematopoietic stem cell transplants (HSCTs) are carried out across the world to treat haematological and immunological diseases which would otherwise prove fatal. Certain diseases are predominantly encountered in paediatric patients, such severe primary immunodeficiencies (PID) and diseases of inborn errors of metabolism (IEM). Chimaerism testing for these disorders has different considerations compared to adult diseases. This review focuses on the importance of cell-lineage-specific chimaerism testing and examines the appropriate cell populations to be assessed in individual paediatric patient groups. By analysing disease-associated subpopulations, abnormalities are identified significantly earlier than in whole samples and targeted clinical decisions can be made. Chimaerism methods have evolved over time and lead to an ever-increasing level of sensitivity and biomarker arrays to distinguish between recipient and donor cells. Short tandem repeat (STR) is still the gold standard for routine chimaerism assessment, and hypersensitive methods such as quantitative and digital polymerase chain reaction (PCR) are leading the forefront of microchimaerism testing. The rise of molecular methods operating with minute DNA amounts has been hugely beneficial to chimaerism testing of paediatric samples. As HSCTs are becoming increasingly personalised and risk-adjusted towards a child's individual needs, chimaerism testing needs to adapt alongside these medical advances ensuring the best possible care.
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Affiliation(s)
- Susanne Kricke
- Specialist Integrated Haematology and Malignancy Diagnostic Service, Department of Haematology, Great Ormond Street Hospital for Children, London, UK
| | - Kanchan Rao
- Department of Blood and Marrow Transplantation, Great Ormond Street Hospital for Children, London, UK
| | - Stuart Adams
- Specialist Integrated Haematology and Malignancy Diagnostic Service, Department of Haematology, Great Ormond Street Hospital for Children, London, UK
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De Paz D, Aviña AE, Cardona E, Lee CM, Lin CH, Lin CH, Wei FC, Wang AYL. The Mandible Ameliorates Facial Allograft Rejection and Is Associated with the Development of Regulatory T Cells and Mixed Chimerism. Int J Mol Sci 2021; 22:11104. [PMID: 34681764 PMCID: PMC8537927 DOI: 10.3390/ijms222011104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022] Open
Abstract
Vascularized composite allografts contain various tissue components and possess relative antigenicity, eliciting different degrees of alloimmune responses. To investigate the strategies for achieving facial allograft tolerance, we established a mouse hemiface transplant model, including the skin, muscle, mandible, mucosa, and vessels. However, the immunomodulatory effects of the mandible on facial allografts remain unclear. To understand the effects of the mandible on facial allograft survival, we compared the diversities of different facial allograft-elicited alloimmunity between a facial osteomyocutaneous allograft (OMC), including skin, muscle, oral mucosa, and vessels, and especially the mandible, and a myocutaneous allograft (MC) including the skin, muscle, oral mucosa, and vessels, but not the mandible. The different facial allografts of a BALB/c donor were transplanted into a heterotopic neck defect on fully major histocompatibility complex-mismatched C57BL/6 mice. The allogeneic OMC (Allo-OMC) group exhibited significant prolongation of facial allograft survival compared to the allogeneic MC group, both in the presence and absence of FK506 immunosuppressive drugs. With the use of FK506 monotherapy (2 mg/kg) for 21 days, the allo-OMC group, including the mandible, showed prolongation of facial allograft survival of up to 65 days, whereas the myocutaneous allograft, without the mandible, only survived for 34 days. The Allo-OMC group also displayed decreased lymphocyte infiltration into the facial allograft. Both groups showed similar percentages of B cells, T cells, natural killer cells, macrophages, and dendritic cells in the blood, spleen, and lymph nodes. However, a decrease in pro-inflammatory T helper 1 cells and an increase in anti-inflammatory regulatory T cells were observed in the blood and lymph nodes of the Allo-OMC group. Significantly increased percentages of donor immune cells were also observed in three lymphoid organs of the Allo-OMC group, suggesting mixed chimerism induction. These results indicated that the mandible has the potential to induce anti-inflammatory effects and mixed chimerism for prolonging facial allograft survival. The immunomodulatory understanding of the mandible could contribute to reducing the use of immunosuppressive regimens in clinical face allotransplantation including the mandible.
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Affiliation(s)
- Dante De Paz
- Department of Plastic Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (D.D.P.); (A.E.A.); (C.-H.L.); (F.-C.W.)
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
- Department of Head and Neck Surgery, National Police Hospital, Lima 15072, Peru
| | - Ana Elena Aviña
- Department of Plastic Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (D.D.P.); (A.E.A.); (C.-H.L.); (F.-C.W.)
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
| | - Esteban Cardona
- Department of Plastic Surgery, Clínica IPS Universitaria León XIII, University of Antioquia, Medellín 050010, Colombia;
| | - Chin-Ming Lee
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
| | - Chia-Hsien Lin
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
| | - Cheng-Hung Lin
- Department of Plastic Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (D.D.P.); (A.E.A.); (C.-H.L.); (F.-C.W.)
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
| | - Fu-Chan Wei
- Department of Plastic Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (D.D.P.); (A.E.A.); (C.-H.L.); (F.-C.W.)
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Aline Yen Ling Wang
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-M.L.); (C.-H.L.)
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