1
|
Fioredda F, Beccaria A, Casartelli P, Turrini E, Contratto C, Giarratana MC, Bagnasco F, Saettini F, Pillon M, Marzollo A, Zanardi S, Civino A, Onofrillo D, Lanciotti M, Ceccherini I, Grossi A, Coviello D, Terranova P, Lupia M, Del Borrello G, Uva P, Cangelosi D, Cavalca G, Miano M, Dufour C. Late-onset and long-lasting neutropenias in the young: A new entity anticipating immune-dysregulation disorders. Am J Hematol 2024; 99:534-542. [PMID: 38282561 DOI: 10.1002/ajh.27221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/09/2023] [Accepted: 01/01/2024] [Indexed: 01/30/2024]
Abstract
This study identifies a new chronic form of immune neutropenia in the young with or without detectable indirect anti-neutrophil antibodies, characterized by mild/moderate neutropenia low risk of severe infection (14%), tendency to develop autoimmune phenomena over the course of the disease (cumulative incidence of 58.6% after 20 years of disease duration), leukopenia, progressive reduction of absolute lymphocyte count and a T- and B-cell profile similar to autoimmune disorders like Sjogren syndrome, rheumatoid arthritis, and systemic lupus erythematosus (increased HLADR+ and CD3 + TCRγδ cells, reduced T regulatory cells, increased double-negative B and a tendency to reduced B memory cells). In a minority of patients, P/LP variants related to primary immuno-regulatory disorders were found. This new form may fit the group of "Likely acquired neutropenia," a provisional category included in the recent International Guidelines on Diagnosis and Management of Neutropenia of EHA and EUNET INNOCHRON ACTION 18233. The early recognition of this form of neutropenia would help clinicians to delineate better specific monitoring plans, genetic counseling, and potentially targeted therapies.
Collapse
Affiliation(s)
- F Fioredda
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - A Beccaria
- Epidemiology and Biostatistics Unit and DOPO Clinic-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - P Casartelli
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - E Turrini
- Unit of Pediatric and OncoHematology, Department of Mother and Child, Azienda Ospedaliera Universitaria, Parma, Italy
| | - C Contratto
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - M C Giarratana
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - F Bagnasco
- Biostatistics Unit, Scientific Directorate, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - F Saettini
- Department of Pediatric Onco-Hematology, San Gerardo Hospital, Fondazione MBBM, Università degli Studi di Milano-Bicocca, Monza, Italy
| | - M Pillon
- Pediatric Hematology-Oncology Unit, Department of Women's and Children's Health, AziendaOspedaliera-University of Padova, Padua, Italy
| | - A Marzollo
- Pediatric Hematology-Oncology Unit, Department of Women's and Children's Health, AziendaOspedaliera-University of Padova, Padua, Italy
| | - S Zanardi
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - A Civino
- Unit of Rheumathology and Immunology-ospedale Vito Fazzi, Lecce, Italy
| | - D Onofrillo
- Pediatric Hematology and Oncology Unit, Department of Hematology, Spirito Santo Hospital, Pescara, Italy
| | - M Lanciotti
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - I Ceccherini
- Laboratory of Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - A Grossi
- Laboratory of Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - D Coviello
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - P Terranova
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - M Lupia
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - G Del Borrello
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
- Pediatric OncoHematology, Pediatrics Department, Hospital Città Della Salute e Della Scienza, University of Turin, Turin, Italy
| | - P Uva
- Clinical Bioinformatics Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - D Cangelosi
- Clinical Bioinformatics Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - G Cavalca
- Clinical Bioinformatics Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
- University of Bologna, Bologna, Italy
| | - M Miano
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - C Dufour
- Haematology Unit-IRCCS Istituto Giannina Gaslini, Genova, Italy
| |
Collapse
|
2
|
Dobrewa W, Madzio J, Babol-Pokora K, Lopacz P, Gierszon A, Guz K, Orzinska A, Uhrynowska M, Jasinska A, Zdunek M, Mlynarski W, Janczar S. A high prevalence of neutrophil-specific antibodies in ELANE-mutated severe congenital neutropenia. Pediatr Blood Cancer 2023; 70:e30247. [PMID: 36734404 DOI: 10.1002/pbc.30247] [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: 12/07/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 02/04/2023]
Abstract
An assay for neutrophil-specific antibodies is frequently used in the workup of chronic severe neutropenia and is suggestive of autoimmune, or sporadically alloimmune neutropenia, rather than severe congenital neutropenia (SCN). We analyzed a neutropenia consortium database for the outcomes of antibody testing initiated before receiving genetic diagnosis in Polish SCN cohort. Test results, performed in a single reference laboratory, were available for 14 patients with ELANE-mutated SCN or cyclic neutropenia, and were frequently positive (36%). We note that the trigger for genetic studies in severe neutropenia should not be affected by antibody-positivity and should be clinically driven.
Collapse
Affiliation(s)
- Weronika Dobrewa
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Joanna Madzio
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Patrycja Lopacz
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Agnieszka Gierszon
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Katarzyna Guz
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Agnieszka Orzinska
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Malgorzata Uhrynowska
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Aleksandra Jasinska
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Maciej Zdunek
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Szymon Janczar
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| |
Collapse
|
3
|
Autoimmune Neutropenia and Immune-Dysregulation in a Patient Carrying a TINF2 Variant. Int J Mol Sci 2022; 23:ijms232314535. [PMID: 36498862 PMCID: PMC9738458 DOI: 10.3390/ijms232314535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022] Open
Abstract
In recent years, the knowledge about the immune-mediated impairment of bone marrow precursors in immune-dysregulation and autoimmune disorders has increased. In addition, immune-dysregulation, secondary to marrow failure, has been reported as being, in some cases, the most evident and early sign of the disease and making the diagnosis of both groups of disorders challenging. Dyskeratosis congenita is a disorder characterized by premature telomere erosion, typically showing marrow failure, nail dystrophy and leukoplakia, although incomplete genetic penetrance and phenotypes with immune-dysregulation features have been described. We report on a previously healthy 17-year-old girl, with a cousin successfully treated for acute lymphoblastic leukemia, who presented with leukopenia and neutropenia. The diagnostic work-up showed positive anti-neutrophil antibodies, leading to the diagnosis of autoimmune neutropenia, a slightly low NK count and high TCR-αβ+-double-negative T-cells. A next-generation sequencing (NGS) analysis showed the 734C>A variant on exon 6 of the TINF2 gene, leading to the p.Ser245Tyr. The telomere length was short on the lymphocytes and granulocytes, suggesting the diagnosis of an atypical telomeropathy showing with immune-dysregulation. This case underlines the importance of an accurate diagnostic work-up of patients with immune-dysregulation, who should undergo NGS or whole exome sequencing to identify specific disorders that deserve targeted follow-up and treatment.
Collapse
|