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Persico I, Fontana G, Faleschini M, Zanchetta ME, Ammeti D, Cappelli E, Corsolini F, Mosa C, Guarina A, Bogliolo M, Surrallés J, Dufour C, Farruggia P, Savoia A, Bottega R. A self-repair history: compensatory effect of a de novo variant on the FANCA c.2778+83C>G splicing mutation. Front Genet 2023; 14:1209138. [PMID: 37547463 PMCID: PMC10397729 DOI: 10.3389/fgene.2023.1209138] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction: Fanconi anemia (FA) is a genome instability condition that drives somatic mosaicism in up to 25% of all patients, a phenomenon now acknowledged as a good prognostic factor. Herein, we describe the case of P1, a FA proband carrying a splicing variant, molecularly compensated by a de novo insertion. Methods and Results: Targeted next-generation sequencing on P1's peripheral blood DNA detected the known FANCA c.2778 + 83C > G intronic mutation and suggested the presence of a large deletion on the other allele, which was then assessed by MLPA and RT-PCR. To determine the c.2778 + 83C > G splicing effect, we performed a RT-PCR on P1's lymphoblastoid cell line (LCL) and on the LCL of another patient (P2) carrying the same variant. Although we confirmed the expected alternative spliced form with a partial intronic retention in P2, we detected no aberrant products in P1's sample. Sequencing of P1's LCL DNA allowed identification of the de novo c.2778 + 86insT variant, predicted to compensate 2778 + 83C > G impact. Albeit not found in P1's bone marrow (BM) DNA, c.2778 + 86insT was detected in a second P1's LCL established afterward, suggesting its occurrence at a low level in vivo. Minigene assay recapitulated the c.2778 + 83C > G effect on splicing and the compensatory role of c.2778 + 86insT in re-establishing the physiological mechanism. Accordingly, P1's LCL under mitomycin C selection preserved the FA pathway activity in terms of FANCD2 monoubiquitination and cell survival. Discussion: Our findings prove the role of c.2778 + 86insT as a second-site variant capable of rescuing c.2778 + 83C > G pathogenicity in vitro, which might contribute to a slow hematopoietic deterioration and a mild hematologic evolution.
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Affiliation(s)
- Ilaria Persico
- Department of Medical Sciences, University of Trieste, Trieste, Italy
- Department of Genetics and Microbiology, Universitat Autònoma de Barcelona, Barcelona, Spain
- Genomic Instability DNA Repair Syndromes Group, Joint Research Unit in Genomic Medicine UAB-IR Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona, Spain
| | - Giorgia Fontana
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Michela Faleschini
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, Trieste, Italy
| | | | - Daniele Ammeti
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Enrico Cappelli
- Hematology Unit, IRCCS Istituto “G. Gaslini”—Genoa, Genova, Italy
| | - Fabio Corsolini
- LABSIEM—Laboratory for the Study of Inborn Errors of Metabolism—Pediatric Clinic and Endocrinology—IRCCS Istituto “G. Gaslini”—Genoa, Genova, Italy
| | - Clara Mosa
- Pediatric Onco-Hematology, ARNAS Civico Hospital, Palermo, Italy
| | - Angela Guarina
- Pediatric Onco-Hematology, ARNAS Civico Hospital, Palermo, Italy
| | - Massimo Bogliolo
- Department of Genetics and Microbiology, Universitat Autònoma de Barcelona, Barcelona, Spain
- Genomic Instability DNA Repair Syndromes Group, Joint Research Unit in Genomic Medicine UAB-IR Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona, Spain
| | - Jordi Surrallés
- Department of Genetics and Microbiology, Universitat Autònoma de Barcelona, Barcelona, Spain
- Genomic Instability DNA Repair Syndromes Group, Joint Research Unit in Genomic Medicine UAB-IR Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Carlos III Health Institute, Madrid, Spain
| | - Carlo Dufour
- Hematology Unit, IRCCS Istituto “G. Gaslini”—Genoa, Genova, Italy
| | - Piero Farruggia
- Pediatric Onco-Hematology, ARNAS Civico Hospital, Palermo, Italy
| | - Anna Savoia
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Roberta Bottega
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, Trieste, Italy
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Long-term skin findings in patients with Fanconi anemia after allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2021; 56:2866-2868. [PMID: 34453115 DOI: 10.1038/s41409-021-01441-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 08/03/2021] [Accepted: 08/18/2021] [Indexed: 11/08/2022]
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3
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Bone Marrow Failure in Fanconi Anemia: Clinical and Genetic Spectrum in a Cohort of 20 Pediatric Patients. J Pediatr Hematol Oncol 2019; 41:612-617. [PMID: 31259830 DOI: 10.1097/mph.0000000000001549] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Prognostic refinement in Fanconi anemia (FA) is needed, especially when considering allogeneic hematopoietic stem cell transplantation (HCT). We studied 20 children with FA and bone marrow failure from a single center. According to Hôpital Saint-Louis risk classification for FA, patients were classified in stage A (no or mild cytopenia/dysplasia), B (single non-high-risk cytogenetic abnormality), C (severe cytopenia and/or significant dysplasia and/or high-risk cytogenetic abnormality), and D (myelodysplastic syndrome with excess of blasts/acute myeloid leukemia) in 4, 2, 13, and 0 cases, respectively. Nine patients received androgens +/- steroids, with a response rate of 30%, and 11 patients underwent HCT. Ten-year cumulative incidence (CI) of myelodysplastic syndrome/acute myeloid leukemia and overall survival (OS) were 21.9% and 45.3%, respectively, in the entire cohort, whereas cumulative incidence of transplantation-related mortality and OS were 27% and 63%, respectively, in patients who underwent HCT. Patients with significant dysplasia at diagnosis (stages C and D) had significantly shorter OS post-HCT as compared with patients without dysplasia. All patients in stages C and D at diagnosis or during evolution died from their disease. HCT in recent years was associated with more favorable outcomes. Larger cohorts could validate homogenous reporting of risk and help decision-making, particularly for HCT.
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Results of Allogenic Hematopoietic Stem Cell Transplantation in Fanconi Anemia Caused by Bone Marrow Failure: Single-Regimen, Single-Center Experience of 14 Years. Biol Blood Marrow Transplant 2019; 25:2017-2023. [DOI: 10.1016/j.bbmt.2019.05.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 12/24/2022]
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5
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Mehta PA, Emoto C, Fukuda T, Seyboth B, Teusink-Cross A, Davies SM, Wilhelm J, Fuller K, Vinks AA, Boulad F. Busulfan Pharmacokinetics and Precision Dosing: Are Patients with Fanconi Anemia Different? Biol Blood Marrow Transplant 2019; 25:2416-2421. [PMID: 31326610 DOI: 10.1016/j.bbmt.2019.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 07/11/2019] [Accepted: 07/15/2019] [Indexed: 12/14/2022]
Abstract
It is well known that pharmacokinetics (PK)-guided busulfan (BU) dosing increases engraftment rates and lowers hepatotoxicity in patients undergoing hematopoietic cell transplantation (HCT). However, there are no published PK data in patients with Fanconi anemia (FA), who are known to have baseline DNA repair defect and related inherent sensitivity to chemotherapy. In our prospective, multi-institutional study of alternative donor HCT for FA using chemotherapy-only conditioning, we replaced the single dose of total-body irradiation with BU at initial doses of 0.8 to 1.0 mg/kg and 0.6 to 0.8 mg/kg given i.v. every 12 hours for 4 doses. Patients received the first dose of i.v. busulfan on day -8, and blood levels for PK were obtained. PK samples were drawn following completion of infusion. BU PK levels were collected at 2 hours, 2 hours and 15 minutes, and 4, 5, 6, and 8 hours from the start of infusion. The remaining 3 doses of BU were given on days -7 and -6. Thirty-seven patients with available BU PK data with a median age of 9.2 years (range, 4.3 to 44 years) are included in the final analyses. The overall BU PK profile in patients with FA is similar to non-FA patients after considering their body weight. In our cohort, a strong correlation between BU clearance and weight supports current practice of per kilogram dosing. However, not surprisingly, we show that the disease (ie, host) sensitivity related to FA is the main determinant of total dose of BU that can be safely administered to patients in this high-risk population. On the basis of our results, we propose an optimal BU concentration at steady-state level of ≤350 ng/mL (equivalent to total cumulative exposure of 16.4 mg*h/L for 4 doses over 2 days) for patients with FA undergoing HCT. To our knowledge, this is the first and largest report of prospective BU PK in patients with FA undergoing HCT, providing an optimal BU target cutoff to achieve stable donor engraftment while avoiding excessive toxicity.
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Affiliation(s)
- Parinda A Mehta
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio.
| | - Chie Emoto
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Tsuyoshi Fukuda
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Brian Seyboth
- Department of Pediatrics, Bone Marrow Transplant Service, Memorial Sloan Kettering, New York, New York; Division of Pediatric Hematology-Oncology, New York Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Ashley Teusink-Cross
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Stella M Davies
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Jamie Wilhelm
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Kirsten Fuller
- Department of Pediatrics, Bone Marrow Transplant Service, Memorial Sloan Kettering, New York, New York; Division of Pediatric Hematology-Oncology, New York Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Alexander A Vinks
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Farid Boulad
- Department of Pediatrics, Bone Marrow Transplant Service, Memorial Sloan Kettering, New York, New York; Division of Pediatric Hematology-Oncology, New York Presbyterian Hospital-Weill Cornell Medical College, New York, New York
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Foglesong JS, Bannon SA, DiNardo CD. Inherited Bone Failure Syndromes, Focus on the Haematological Manifestations: A Review. EUROPEAN MEDICAL JOURNAL 2017. [DOI: 10.33590/emj/10310433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The purpose of this review is to provide the haematologist with a working knowledge of the common inherited bone marrow failure syndromes (iBMFS) diagnosed in early childhood to young adulthood. Although these disorders are heterogeneous, this article discusses their common features, pathophysiology, and management. Each of these syndromes has a spectrum of clinical variation and can cause both haematological and non-haematological manifestations. Most pathogenic mutations responsible are in genes important to a progenitor cell’s ability to maintain genomic integrity, which accounts for the clinical phenotypes often affecting multiple tissues. Furthermore, all of these syndromes predispose not only to aplastic anaemia but also to myelodysplastic syndrome/acute myeloid leukaemia. Since iBMFS only account for a small percentage of childhood leukaemia cases, it is important that the clinician maintains a high clinical suspicion as appropriate diagnosis impacts treatment, health screening, and family members. Identification of iBMFS is critically important for appropriate donor selection and transplant regimens, as haematopoietic stem cell transplantation is curative for the haematological manifestations of these diseases, but treatment-related mortality can be excessive if modifications are not made to conditioning.
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Affiliation(s)
- Jessica S. Foglesong
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sarah A. Bannon
- Department of Clinical Cancer Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Courtney D. DiNardo
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Radiation-free, alternative-donor HCT for Fanconi anemia patients: results from a prospective multi-institutional study. Blood 2017; 129:2308-2315. [PMID: 28179273 DOI: 10.1182/blood-2016-09-743112] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/25/2017] [Indexed: 12/22/2022] Open
Abstract
Fanconi anemia (FA) is an inherited bone marrow failure syndrome characterized by chromosomal fragility, progressive marrow failure, and cancer predisposition. Hematopoietic cell transplantation (HCT) is curative for FA-related marrow failure or leukemia, but both radiation exposure during transplant and graft-versus-host disease (GVHD) may increase risk of later malignancies of the head and neck and anogenital area. In this study, we tested a radiation-free conditioning regimen with a T-cell-depleted graft to eliminate radiation exposure and minimize early and late toxicities of transplant. Forty-five patients (median age, 8.2 years; range 4.3-44) with FA underwent HCT between June 2009 and May 2014. The preparative regimen included busulfan, cyclophosphamide, fludarabine, and rabbit anti-thymocyte globulin. Busulfan levels were monitored to avoid excess toxicity. All grafts were CD34-selected/T-cell-depleted using the CliniMacs CD34 columns (Miltenyi). Thirty-four patients (75.6%) with marrow failure and 11 (24.4%) with myelodysplastic syndrome underwent HCT using matched unrelated (n = 25, 55.5%), mismatched unrelated (n = 14, 31.1%), or mismatched related donors (n = 6, 13.4%). One year probabilities of overall and disease-free survival for the entire cohort, including patients with myeloid malignancy and those receiving mismatched related/haploidentical grafts, were 80% (±6%) and 77.7% (±6.2%), respectively (median follow-up 41 months). All young children (<10 years of age) undergoing HCT for marrow failure using low-dose busulfan-containing regimen survived. No patients developed acute grade 3-4 GVHD. Sequential reduction of busulfan dose was successfully achieved per study design. Our results show excellent outcomes in patients with FA undergoing alternative donor HCT without radiation exposure. The study is registered to www.clinicaltrials.gov as #NCT01082133.
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Smetsers SE, Smiers FJ, Bresters D, Sonnevelt MC, Bierings MB. Four decades of stem cell transplantation for Fanconi anaemia in the Netherlands. Br J Haematol 2016; 174:952-61. [PMID: 27470218 DOI: 10.1111/bjh.14165] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 04/06/2016] [Indexed: 12/19/2022]
Abstract
This article presents the haematopoietic stem cell transplantation (SCT) results of the complete Dutch Fanconi anaemia (FA) patient cohort. Sixty-eight Dutch FA patients have been transplanted since 1972. In total, 63 (93%) patients engrafted, 54 after first SCT and 9 after second SCT. Fludarabine (FLU)-based conditioning was associated with decreased graft failure (odds ratio 0·21, P = 0·01), decreased early mortality (hazard ratio 0·25, P = 0·01) and improved 5-year overall survival (FLU 87·8% [standard error (SE) 5·1%] versus non-FLU 59·3% [SE 9·5%], P = 0·01). Late mortality was mainly caused by squamous cell carcinoma. Twenty-two patients were treated with the current Dutch FA conditioning regimen (FLU 150 mg/m(2) and cyclophosphamide 30 mg/kg ± anti-thymocyte globulin - no irradiation). Stem cell donors were matched related (n = 8) or alternative donors (n = 14). Stable engraftment after first SCT was achieved in 19 (86%) patients. At a median follow-up of 3·9 years 20 (91%) patients are alive. Our study provides a unique overview of a nation-wide SCT cohort illustrating the major improvements in treatment regimen and patient outcome in recent years. It shows that a non-irradiation and busulfan-free conditioning regimen can be used successfully, also in alternative donor SCT. Furthermore, it underlines the importance of late cancer screening and comprehensive care for this complex disorder.
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Affiliation(s)
- Stephanie E Smetsers
- Department of Paediatric Haematology and Stem Cell Transplantation, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Frans J Smiers
- Department of Paediatric Haematology and Stem Cell Transplantation, Leiden University Medical Centre, Leiden, The Netherlands
| | - Dorine Bresters
- Department of Paediatric Haematology and Stem Cell Transplantation, Leiden University Medical Centre, Leiden, The Netherlands
| | - Martine C Sonnevelt
- Department of Paediatric Haematology and Stem Cell Transplantation, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Marc B Bierings
- Department of Paediatric Haematology and Stem Cell Transplantation, University Medical Centre Utrecht, Utrecht, The Netherlands.,Dutch Childhood Oncology Group, Fanconi Anaemia Guideline Chair, The Hague, The Netherlands
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9
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Anur P, Friedman DN, Sklar C, Oeffinger K, Castiel M, Kearney J, Singh B, Prockop SE, Kernan NA, Scaradavou A, Kobos R, Curran K, Ruggiero J, Zakak N, O'Reilly RJ, Boulad F. Late effects in patients with Fanconi anemia following allogeneic hematopoietic stem cell transplantation from alternative donors. Bone Marrow Transplant 2016; 51:938-44. [PMID: 26999465 PMCID: PMC4968886 DOI: 10.1038/bmt.2016.32] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 12/17/2022]
Abstract
Hematopoietic stem cell transplantation (HSCT) is curative for hematological manifestations of Fanconi anemia (FA). We performed a retrospective analysis of 22 patients with FA and aplastic anemia, myelodysplastic syndrome or acute myelogenous leukemia who underwent a HSCT at Memorial Sloan Kettering Cancer Center and survived at least 1 year post HSCT. Patients underwent either a TBI- (N=18) or busulfan- (N=4) based cytoreduction followed by T-cell-depleted transplants from alternative donors. Twenty patients were alive at time of the study with a 5- and 10-year overall survival of 100 and 84% and no evidence of chronic GvHD. Among the 18 patients receiving a TBI-based regimen, 11 (61%) had persistent hemochromatosis, 4 (22%) developed hypothyroidism, 7 (39%) had insulin resistance and 5 (27%) developed hypertriglyceridemia after transplant. Eleven of 16 evaluable patients (68%), receiving TBI, developed gonadal dysfunction. Two patients who received a TBI-based regimen died of squamous cell carcinoma. One patient developed hemochromatosis, hypothyroidism and gonadal dysfunction after busulfan-based cytoreduction. TBI appears to be a risk factor for malignant and endocrine late effects in the FA host. Multidisciplinary follow-up of patients with FA (including cancer screening) is essential for early detection and management of late complications, and improving long-term outcomes.
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Affiliation(s)
- P Anur
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - D N Friedman
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - C Sklar
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - K Oeffinger
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - M Castiel
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - J Kearney
- Department of Psychiatry, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - B Singh
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - S E Prockop
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - N A Kernan
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A Scaradavou
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - R Kobos
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - K Curran
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - J Ruggiero
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - N Zakak
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - R J O'Reilly
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - F Boulad
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Pediatrics, Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY, USA
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Khincha PP, Savage SA. Neonatal manifestations of inherited bone marrow failure syndromes. Semin Fetal Neonatal Med 2016; 21:57-65. [PMID: 26724991 PMCID: PMC4747853 DOI: 10.1016/j.siny.2015.12.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The inherited bone marrow failure syndromes (IBMFS) are a rare yet clinically important cause of neonatal hematological and non-hematological manifestations. Many of these syndromes, such as Fanconi anemia, dyskeratosis congenita and Diamond-Blackfan anemia, confer risks of multiple medical complications later in life, including an increased risk of cancer. Some IBMFS may present with cytopenias in the neonatal period whereas others may present only with congenital physical abnormalities and progress to pancytopenia later in life. A thorough family history and detailed physical examination are integral to the work-up of any neonate in whom there is a high index of suspicion for an IBMFS. Correct detection and diagnosis of these disorders is important for appropriate long-term medical surveillance and counseling not only for the patient but also for appropriate genetic counselling of their families regarding recurrence risks in future children and generations.
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Affiliation(s)
| | - Sharon A. Savage
- Corresponding author. Address: Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609, Medical Center Drive, Room 6E 454, Bethesda, MD 20892, USA. Tel.: +1 240-276-7241; fax: +1 240-276-7836. (S.A. Savage)
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11
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Risitano AM, Marotta S, Calzone R, Grimaldi F, Zatterale A. Twenty years of the Italian Fanconi Anemia Registry: where we stand and what remains to be learned. Haematologica 2015; 101:319-27. [PMID: 26635036 DOI: 10.3324/haematol.2015.133520] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 11/27/2015] [Indexed: 12/17/2022] Open
Abstract
The natural history of Fanconi anemia remains hard to establish because of its rarity and its heterogeneous clinical presentation; since 1994, the Italian Fanconi Anemia Registry has collected clinical, epidemiological and genetic data of Italian Fanconi Anemia patients. This registry includes 180 patients with a confirmed diagnosis of Fanconi anemia who have either been enrolled prospectively, at diagnosis, or later on. After enrollment, follow-up data were periodically collected to assess the clinical course, possible complications and long-term survival; the median follow up was 15.6 years. The main goal of the study was to describe the natural history of Fanconi anemia, focusing on the following variables: family history, disease presentation, development of hematological manifestations, development of malignancies, occurrence of hematopoietic stem cell transplantation and survival. Typical morphological and/or hematological abnormalities and/or growth retardation were the most common manifestations at diagnosis; the majority of patients (77%) exhibited hematological abnormalities at the initial presentation, and almost all (96%) eventually developed hematological manifestations. More than half of the patients (57%) underwent a bone-marrow transplant. The occurrence of cancer was quite rare at diagnosis, whereas the cumulative incidence of malignancies at 10, 20 and 30 years was 5%, 8% and 22%, respectively, for hematological cancers and 1%, 15% and 32%, respectively, for solid tumors. Overall survival at 10, 20 and 30 years were 88%, 56% and 37%, respectively; the main causes of death were cancer, complications of the hematological presentation and complications of transplantation. These data clearly confirm the detrimental outcome of Fanconi anemia, with no major improvement in the past decades.
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Affiliation(s)
- Antonio M Risitano
- Hematology, Department of Clinical Medicine and Surgery, "Federico II" University, Italy
| | - Serena Marotta
- Hematology, Department of Clinical Medicine and Surgery, "Federico II" University, Italy
| | | | - Francesco Grimaldi
- Hematology, Department of Clinical Medicine and Surgery, "Federico II" University, Italy
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Rama H, Gupta D, Chatterjee T, Gupta S. Fanconi Anemia with MDS RAEB-2 Rapidly Progressing to AML in a 5-Year-Old Boy. Indian J Hematol Blood Transfus 2014; 30:379-82. [PMID: 25332625 DOI: 10.1007/s12288-014-0424-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 06/10/2014] [Indexed: 10/25/2022] Open
Abstract
Fanconi's Anemia is primarily an autosomal recessive genetic disorder characterized by congenital abnormalities, defective haematopoiesis leading to bone marrow failure and increased risk of development of Myelodysplastic syndrome, acute myeloid leukemia and solid tumours. Chromosomal instability can be demonstrated by breakage caused by alkylating agents and forms the basis of diagnosis. Our patient presented with structural deformities associated with features of bone marrow failure in form of pancytopenia. Bone marrow analysis and flow cytometry done on aspirate was suggestive of MDS. He subsequently progressed to frank acute myeloid leukemia and succumbed to the illness. The case is being reported for its rarity especially, Fanconi's Anemia associated with monosomal karyotype (one monosomy plus one more structural abnormality).
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Affiliation(s)
- H Rama
- Department of Pathology and Molecular Medicine, Army Hospital (Research & Referral), Dhaulakaun, New Delhi, 110010 India
| | - Devika Gupta
- Department of Pathology and Molecular Medicine, Army Hospital (Research & Referral), Dhaulakaun, New Delhi, 110010 India
| | - Tathagata Chatterjee
- Department of Pathology and Molecular Medicine, Army Hospital (Research & Referral), Dhaulakaun, New Delhi, 110010 India
| | - Srishti Gupta
- Department of Pathology and Molecular Medicine, Army Hospital (Research & Referral), Dhaulakaun, New Delhi, 110010 India
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Sources of Uncertainty and Their Association with Medical Decision Making: Exploring Mechanisms in Fanconi Anemia. Ann Behav Med 2013; 46:204-16. [DOI: 10.1007/s12160-013-9507-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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14
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Dalle JH. [Hematopoietic stem cell transplantation in 2012: who? Where? How?]. Arch Pediatr 2013; 20:405-11. [PMID: 23466405 DOI: 10.1016/j.arcped.2013.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 11/16/2012] [Accepted: 01/21/2013] [Indexed: 11/17/2022]
Abstract
Allogeneic bone marrow transplantation has dramatically changed over the years since its beginnings. The diseases treated with transplantation (malignant hemopathies, severe benign hemopathies such as congenital or acquired congenital medullary aplasia, hemoglobinopathies, as well as severe immune system deficiencies and certain overload diseases), stem cell sources (bone marrow, peripheral stem cells, placental blood), donor types (intrafamilial, nonrelated, totally or partially compatible), conditioning regimen (immunosuppressors, graft manipulation), and supportive care increasingly vary. Allogeneic stem cell transplantation and more widely cellular therapies now need to be discussed. In this paper, we propose an overview of these therapies in 2012 for pediatric patients.
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Affiliation(s)
- J-H Dalle
- Service d'hématologie et immunologie pédiatrique, université Paris Denis-Diderot, hôpital Robert-Debré, 48, boulevard Serurier, 75935 Paris cedex 19, France.
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Lanneaux J, Poidvin A, Soole F, Leclerc G, Grimaud M, Dalle JH. [Fanconi anemia in 2012: diagnosis, pediatric follow-up and treatment]. Arch Pediatr 2012; 19:1100-9. [PMID: 22959745 DOI: 10.1016/j.arcped.2012.07.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 05/23/2012] [Accepted: 07/12/2012] [Indexed: 11/19/2022]
Abstract
Fanconi anemia (FA) is a rare genetic disease, transmitted in an autosomal recessive mode. The clinical phenotype is very broad and heterogeneous, related to the wide range of genes involved in this pathology. The classical triad of short height, physical abnormalities, and bone marrow failure is suggestive. The main physical abnormalities found involve the limbs, spinal column, skin, kidneys and urinary tract, and the ORL zone. Recent progress in molecular biology has identified 15 genes whose mutation causes FA chromosomal instability. FA is diagnosed by cytogenetic examination, then specified by molecular analysis. As FA patients may present multiorgan abnormalities and a high risk for neoplasia development, their medical follow-up has to be multidisciplinary and prolonged throughout life. The main challenges of the follow-up are patient information and education. Bone marrow failure, appearing during the first decade, requires close hematological monitoring and for severe cases requires hematopoietic stem cell transplantation, major and specific care with frequent serious complications and high mortality, but this is the only curative treatment in FA. Extrahematological care consists in screening for organ abnormalities and defects as well as monitoring precancerous lesions and tumors.
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Affiliation(s)
- J Lanneaux
- Service d'hématologie et immunologie pédiatrique, hôpital Robert-Debré, 48, boulevard Serurier, 75935 Paris cedex 19, France
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16
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Marsh JCW, Ball SE, Cavenagh J, Darbyshire P, Dokal I, Gordon-Smith EC, Keidan J, Laurie A, Martin A, Mercieca J, Killick SB, Stewart R, Yin JAL. Guidelines for the diagnosis and management of aplastic anaemia. Br J Haematol 2009; 147:43-70. [PMID: 19673883 DOI: 10.1111/j.1365-2141.2009.07842.x] [Citation(s) in RCA: 385] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Judith C W Marsh
- Department of Haematological Medicine, King's College Hospital, London, UK.
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Abstract
Fanconi anemia (FA) is an autosomal and X-linked recessive disorder characterized by bone marrow failure, acute myelogenous leukemia, solid tumors, and developmental abnormalities. Recent years have seen a dramatic improvement in FA patient treatment, resulting in a greater survival of children into adulthood. These improvements have been made despite the fact that a definitive cellular function for the proteins in the FA pathway has yet to be elucidated. Delineating the cellular functions of the FA pathway could help further improve the treatment options for FA patients and further reduce the probability of succumbing to the disease. This article reviews the current clinical aspects of FA including presentation, diagnosis, and treatment followed by a review of the molecular aspects of FA as they are currently understood.
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Affiliation(s)
- Allison M Green
- Section of Pediatric Hematology-Oncology, Department of Pathology, Yale University School of Medicine, 333 Cedar Street LMP 2073, PO Box 208064, New Haven, CT 06520-8064, USA
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Bonfim CM, de Medeiros CR, Bitencourt MA, Zanis-Neto J, Funke VAM, Setubal DC, Ruiz J, Sanders JE, Flowers MED, Kiem HP, Storb R, Pasquini R. HLA-matched related donor hematopoietic cell transplantation in 43 patients with Fanconi anemia conditioned with 60 mg/kg of cyclophosphamide. Biol Blood Marrow Transplant 2007; 13:1455-60. [PMID: 18022575 DOI: 10.1016/j.bbmt.2007.08.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2007] [Accepted: 08/09/2007] [Indexed: 11/25/2022]
Abstract
Cells from Fanconi anemia (FA) patients are hypersensitive to alkylating agents and radiation traditionally used as conditioning regimens for marrow cell transplantation, and patients experience serious toxicities. To reduce toxicities, we used progressively lower doses of cyclophosphamide (CY) for conditioning. Here, we report the results in 43 FA patients who received marrow transplantation from HLA-matched related donors (37 siblings and 6 other relatives). Conditioning consisted of 15 mg CY/kg/day for 4 days along with Mesna. Methotrexate and cyclosporine were given for graft-versus-host disease (GVHD) prophylaxis. Forty patients (93%) are alive with a median follow-up of 3.7 (range 0.6 to 7.9) years. One patient with primary graft failure was successfully retransplanted. Three of 4 patients with late graft failures were retransplanted, and 2 of those are alive; 1 died before a second marrow graft. Twelve patients including 3 with rejection had cytogenetic abnormalities in their marrow cells before transplantation. Acute grade II-III and chronic GVHD (aGVHD, cGVHD) were seen in 17% and 28.5% of patients, respectively. These results confirm and extend our previous observations that conditioning with 60 mg CY/kg allows for sustained engraftment of HLA-matched related marrow grafts in most FA patients and is associated with low toxicity, low incidences of aGVHD and cGVHD, and excellent long-term survival.
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Affiliation(s)
- Carmem M Bonfim
- Bone Marrow Transplantation Service, Federal University of Parana, Curitiba, PR, Brazil
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Gluckman E, Rocha V, Ionescu I, Bierings M, Harris RE, Wagner J, Kurtzberg J, Champagne MA, Bonfim C, Bittencourt M, Darbyshire P, Fernandez MN, Locatelli F, Pasquini R. Results of unrelated cord blood transplant in fanconi anemia patients: risk factor analysis for engraftment and survival. Biol Blood Marrow Transplant 2007; 13:1073-82. [PMID: 17697970 DOI: 10.1016/j.bbmt.2007.05.015] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Accepted: 05/31/2007] [Indexed: 11/20/2022]
Abstract
We retrospectively analyzed results of unrelated cord blood transplantation (UCBT) in 93 Fanconi anemia (FA) patients. Median age at transplantation was 8.6 years (1-45). The units transplanted were HLA-A, -B, or -DRB1 identical in 12 cases, 1 HLA mismatch in 35 cases, and 2 or 3 HLA differences in 45 cases. The median number of nucleated cells (NC) and CD34+ cells infused of recipient weight was 4.9x10(7)/kg and 1.9x10(5)/kg, respectively. Participating centers selected the preparative regimen of their choice, in 57 patients (61%), it included Fludarabine. Graft-versus-host disease (GVHD) prophylaxis consisted mostly of cyclosporine with prednisone. Cumulative incidence (CI) of neutrophil recovery was 60+/-5% at day +60. In multivariate analysis, Fludarabine containing regimen and NC infused>or=4.9x10(7)/kg were associated with higher probability of recovery. CI of grade II-IV acute and of chronic GVHD (aGVHD, cGVHD) was 32%+/-5% and 16%+/-4%, respectively. Overall survival (OS) was 40%+/-5%. In multivariate analysis, factors associated with favorable outcome were use of Fludarabine in the conditioning regimen, number of NC infused>or=4.9x10(7)/kg, and negative cytomegalovirus (CMV) serology in the recipient. In conclusion, factors easily modifiable such as donor selection and a Fludarabine-containing regimen can considerably improve survival in FA patients given a UCBT. These data are the basis for designing prospective protocols.
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Affiliation(s)
- Eliane Gluckman
- Hôpital Saint Louis AP/HP, University of Paris VII, IUH, Paris, France.
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Abstract
A rare genetic disease, Fanconi anemia (FA), now attracts broader attention from cancer biologists and basic researchers in the DNA repair and ubiquitin biology fields as well as from hematologists. FA is a chromosome instability syndrome characterized by childhood-onset aplastic anemia, cancer or leukemia susceptibility, and cellular hypersensitivity to DNA crosslinking agents. Identification of 11 genes for FA has led to progress in the molecular understanding of this disease. FA proteins, including a ubiquitin ligase (FANCL), a monoubiquitinated protein (FANCD2), a helicase (FANCJ/BACH1/BRIP1), and a breast/ovarian cancer susceptibility protein (FANCD1/BRCA2), appear to cooperate in a pathway leading to the recognition and repair of damaged DNA. Molecular interactions among FA proteins and responsible proteins for other chromosome instability syndromes (BLM, NBS1, MRE11, ATM, and ATR) have also been found. Furthermore, inactivation of FA genes has been observed in a wide variety of human cancers in the general population. These findings have broad implications for predicting the sensitivity and resistance of tumors to widely used anticancer DNA crosslinking agents (cisplatin, mitomycin C, and melphalan). Here, we summarize recent progress in the molecular biology of FA and discuss roles of the FA proteins in DNA repair and cancer biology.
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Affiliation(s)
- Toshiyasu Taniguchi
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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