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Zoller J, Trajanova D, Feurstein S. Germline and somatic drivers in inherited hematologic malignancies. Front Oncol 2023; 13:1205855. [PMID: 37904876 PMCID: PMC10613526 DOI: 10.3389/fonc.2023.1205855] [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: 04/14/2023] [Accepted: 09/15/2023] [Indexed: 11/01/2023] Open
Abstract
Inherited hematologic malignancies are linked to a heterogenous group of genes, knowledge of which is rapidly expanding using panel-based next-generation sequencing (NGS) or whole-exome/whole-genome sequencing. Importantly, the penetrance for these syndromes is incomplete, and disease development, progression or transformation has critical clinical implications. With the earlier detection of healthy carriers and sequential monitoring of these patients, clonal hematopoiesis and somatic driver variants become significant factors in determining disease transformation/progression and timing of (preemptive) hematopoietic stem cell transplant in these patients. In this review, we shed light on the detection of probable germline predisposition alleles based on diagnostic/prognostic 'somatic' NGS panels. A multi-tier approach including variant allele frequency, bi-allelic inactivation, persistence of a variant upon clinical remission and mutational burden can indicate variants with high pre-test probability. We also discuss the shared underlying biology and frequency of germline and somatic variants affecting the same gene, specifically focusing on variants in DDX41, ETV6, GATA2 and RUNX1. Germline variants in these genes are associated with a (specific) pattern or over-/underrepresentation of somatic molecular or cytogenetic alterations that may help identify the underlying germline syndrome and predict the course of disease in these individuals. This review is based on the current knowledge about somatic drivers in these four syndromes by integrating data from all published patients, thereby providing clinicians with valuable and concise information.
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Affiliation(s)
| | | | - Simone Feurstein
- Department of Internal Medicine, Section of Hematology, Oncology & Rheumatology, University Hospital Heidelberg, Heidelberg, Germany
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Lassandro G, Palladino V, Faleschini M, Barone A, Boscarol G, Cesaro S, Chiocca E, Farruggia P, Giona F, Gorio C, Maggio A, Marinoni M, Marzollo A, Palumbo G, Russo G, Saracco P, Spinelli M, Verzegnassi F, Morga F, Savoia A, Giordano P. "CHildren with Inherited Platelet disorders Surveillance" (CHIPS) retrospective and prospective observational cohort study by Italian Association of Pediatric Hematology and Oncology (AIEOP). Front Pediatr 2022; 10:967417. [PMID: 36507135 PMCID: PMC9728612 DOI: 10.3389/fped.2022.967417] [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: 06/12/2022] [Accepted: 10/18/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Inherited thrombocytopenias (ITs) are rare congenital bleeding disorders characterized by different clinical expression and variable prognosis. ITs are poorly known by clinicians and often misdiagnosed with most common forms of thrombocytopenia. MATERIAL AND METHODS "CHildren with Inherited Platelet disorders Surveillance" study (CHIPS) is a retrospective - prospective observational cohort study conducted between January 2003 and January 2022 in 17 centers affiliated to the Italian Association of Pediatric Hematology and Oncology (AIEOP). The primary objective of this study was to collect clinical and laboratory data on Italian pediatric patients with inherited thrombocytopenias. Secondary objectives were to calculate prevalence of ITs in Italian pediatric population and to assess frequency and genotype-phenotype correlation of different types of mutations in our study cohort. RESULTS A total of 139 children, with ITs (82 male - 57 female) were enrolled. ITs prevalence in Italy ranged from 0.7 per 100,000 children during 2010 to 2 per 100,000 children during 2022. The median time between the onset of thrombocytopenia and the diagnosis of ITs was 1 years (range 0 - 18 years). A family history of thrombocytopenia has been reported in 90 patients (65%). Among 139 children with ITs, in 73 (53%) children almost one defective gene has been identified. In 61 patients a pathogenic mutation has been identified. Among them, 2 patients also carry a variant of uncertain significance (VUS), and 4 others harbour 2 VUS variants. VUS variants were identified in further 8 patients (6%), 4 of which carry more than one variant VUS. Three patients (2%) had a likely pathogenic variant while in 1 patient (1%) a variant was identified that was initially given an uncertain significance but was later classified as benign. In addition, in 17 patients the genetic diagnosis is not available, but their family history and clinical/laboratory features strongly suggest the presence of a specific genetic cause. In 49 children (35%) no genetic defect were identified. In ninetyseven patients (70%), thrombocytopenia was not associated with other clinically apparent disorders. However, 42 children (30%) had one or more additional clinical alterations. CONCLUSION Our study provides a descriptive collection of ITs in the pediatric Italian population.
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Affiliation(s)
- Giuseppe Lassandro
- Interdisciplinary Department of Medicine, Pediatric Section, University of Bari "Aldo Moro", Bari, Italy
| | - Valentina Palladino
- Interdisciplinary Department of Medicine, Pediatric Section, University of Bari "Aldo Moro", Bari, Italy
| | - Michela Faleschini
- Department of Medical Genetics, Institute for Maternal and Child Health-IRCCS Burlo Garofolo, Trieste, Italy
| | - Angelica Barone
- Pediatric Hematology Oncology, Dipartimento Materno-Infantile, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Gianluca Boscarol
- Department of Pediatrics, Central Teaching Hospital of Bolzano/Bozen, Bolzano, Italy
| | - Simone Cesaro
- Pediatric Hematology Oncology, Department of Mother and Child, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Elena Chiocca
- Pediatric Hematology Oncology, Department of Pediatric Hematology/Oncology and HSCT, Meyer Children's University Hospital, Florence, Italy
| | - Piero Farruggia
- Pediatric Hematology and Oncology Unit, ARNAS (Azienda di Rilievo Nazionale ad Alta Specializzazione) Ospedale Civico, Palermo, Italy
| | - Fiorina Giona
- Department of Translational and Precision Medicine, Sapienza University of Rome, AOU Policlinico Umberto I, Rome, Italy
| | - Chiara Gorio
- Hematology Oncology Unit, Children's Hospital, ASST Spedali Civili, Brescia, Italy
| | - Angela Maggio
- UOC Oncoematologia Pediatrica-IRCCS Ospedale Casa Sollievo Della Sofferenza, San Giovanni Rotondo, Italy
| | - Maddalena Marinoni
- Pediatric Hematology Oncology, Department of Mother and Child, Azienda Socio Sanitaria Settelaghi, Varese, Italy
| | - Antonio Marzollo
- Pediatric Hematology, Oncology and Stem Cell Transplant Division, Padua University Hospital, Padua, Italy
| | - Giuseppe Palumbo
- Department of Pediatric Hematology and Oncology Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Giovanna Russo
- Pediatric Hematology Oncology, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Paola Saracco
- Pediatric Hematology, Department of Pediatrics, University Hospital Città Della Salute e Della Scienza, Turin, Italy
| | - Marco Spinelli
- Pediatric Hematology Oncology, Department of Pediatrics, MBBM Foundation, Monza, Italy
| | - Federico Verzegnassi
- Department of Medical Genetics, Institute for Maternal and Child Health-IRCCS Burlo Garofolo, Trieste, Italy
| | - Francesca Morga
- Interdisciplinary Department of Medicine, Pediatric Section, University of Bari "Aldo Moro", Bari, Italy
| | - Anna Savoia
- Department of Medical Genetics, Institute for Maternal and Child Health-IRCCS Burlo Garofolo, Trieste, Italy.,Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Paola Giordano
- Interdisciplinary Department of Medicine, Pediatric Section, University of Bari "Aldo Moro", Bari, Italy
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Bastida JM, Gonzalez-Porras JR, Rivera J, Lozano ML. Role of Thrombopoietin Receptor Agonists in Inherited Thrombocytopenia. Int J Mol Sci 2021; 22:ijms22094330. [PMID: 33919295 PMCID: PMC8122256 DOI: 10.3390/ijms22094330] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/16/2021] [Accepted: 04/17/2021] [Indexed: 01/05/2023] Open
Abstract
In the last decade, improvements in genetic testing have revolutionized the molecular diagnosis of inherited thrombocytopenias (ITs), increasing the spectrum of knowledge of these rare, complex and heterogeneous disorders. In contrast, the therapeutic management of ITs has not evolved in the same way. Platelet transfusions have been the gold standard treatment for a long time. Thrombopoietin receptor agonists (TPO-RA) were approved for immune thrombocytopenia (ITP) ten years ago and there is evidence for the use of TPO-RA not only in other forms of ITP, but also in ITs. We have reviewed in the literature the existing evidence on the role of TPO-RAs in ITs from 2010 to February 2021. A total of 24 articles have been included, 4 clinical trials, 3 case series and 17 case reports. A total of 126 patients with ITs have received TPO-RA. The main diagnoses were Wiskott–Aldrich syndrome, MYH9-related disorder and ANKRD26-related thrombocytopenia. Most patients were enrolled in clinical trials and were treated for short periods of time with TPO-RA as bridging therapies towards surgical interventions, or other specific approaches, such as hematopoietic stem cell transplantation. Here, we have carried out an updated and comprehensive review about the efficacy and safety of TPO-RA in ITs.
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Affiliation(s)
- José María Bastida
- Department of Hematology, Instituto de Investigación Biomédica de Salamanca (IBSAL), Complejo Asistencial Universitario de Salamanca (CAUSA), Universidad de Salamanca (USAL), 37007 Salamanca, Spain;
- Correspondence:
| | - José Ramón Gonzalez-Porras
- Department of Hematology, Instituto de Investigación Biomédica de Salamanca (IBSAL), Complejo Asistencial Universitario de Salamanca (CAUSA), Universidad de Salamanca (USAL), 37007 Salamanca, Spain;
| | - José Rivera
- Department of Hematology and Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB-Arrixaca, CIBERER-U765, 30008 Murcia, Spain; (J.R.); (M.L.L.)
| | - María Luisa Lozano
- Department of Hematology and Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB-Arrixaca, CIBERER-U765, 30008 Murcia, Spain; (J.R.); (M.L.L.)
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