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de Valence B, Delaune M, Nguyen Y, Jachiet V, Heiblig M, Jean A, Riescher Tuczkiewicz S, Henneton P, Guilpain P, Schleinitz N, Le Guenno G, Lobbes H, Lacombe V, Ardois S, Lazaro E, Langlois V, Outh R, Vinit J, Martellosio JP, Decker P, Moulinet T, Dieudonné Y, Bigot A, Terriou L, Vlakos A, de Maleprade B, Denis G, Broner J, Kostine M, Humbert S, Lifermann F, Samson M, Pechuzal S, Aouba A, Kosmider O, Dion J, Grosleron S, Bourguiba R, Terrier B, Georgin-Lavialle S, Fain O, Mekinian A, Morgand M, Comont T, Hadjadj J. Serious infections in patients with VEXAS syndrome: data from the French VEXAS registry. Ann Rheum Dis 2024; 83:372-381. [PMID: 38071510 DOI: 10.1136/ard-2023-224819] [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: 08/07/2023] [Accepted: 10/22/2023] [Indexed: 02/17/2024]
Abstract
INTRODUCTION Vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome is an acquired autoinflammatory monogenic disease with a poor prognosis whose determinants are not well understood. We aimed to describe serious infectious complications and their potential risk factors. METHODS Retrospective multicentre study including patients with VEXAS syndrome from the French VEXAS Registry. Episodes of serious infections were described, and their risk factors were analysed using multivariable Cox proportional hazards models. RESULTS Seventy-four patients with 133 serious infections were included. The most common sites of infection were lung (59%), skin (10%) and urinary tract (9%). Microbiological confirmation was obtained in 76%: 52% bacterial, 30% viral, 15% fungal and 3% mycobacterial. Among the pulmonary infections, the main pathogens were SARS-CoV-2 (28%), Legionella pneumophila (21%) and Pneumocystis jirovecii (19%). Sixteen per cent of severe infections occurred without any immunosuppressive treatment and with a daily glucocorticoid dose ≤10 mg. In multivariate analysis, age >75 years (HR (95% CI) 1.81 (1.02 to 3.24)), p.Met41Val mutation (2.29 (1.10 to 5.10)) and arthralgia (2.14 (1.18 to 3.52)) were associated with the risk of serious infections. JAK inhibitors were most associated with serious infections (3.84 (1.89 to 7.81)) compared with biologics and azacitidine. After a median follow-up of 4.4 (2.5-7.7) years, 27 (36%) patients died, including 15 (56%) due to serious infections. CONCLUSION VEXAS syndrome is associated with a high incidence of serious infections, especially in older patients carrying the p.Met41Val mutation and treated with JAK inhibitors. The high frequency of atypical infections, especially in patients without treatment, may indicate an intrinsic immunodeficiency.
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Affiliation(s)
| | - Marion Delaune
- Médecine interne, Université Toulouse III-Paul Sabatier Faculté de santé, Centre Hospitalier Universitaire de Toulouse Pole IUC de Toulouse Oncopole CHU, Toulouse, France
| | - Yann Nguyen
- Médecine interne, Université Paris Cité, Hôpital Beaujon, Clichy, France
| | - Vincent Jachiet
- Médecine Interne, Sorbonne université, Hopital Saint-Antoine, Paris, France
| | - Mael Heiblig
- Hématologie clinique, Université Claude Bernard Lyon 1, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - Alexis Jean
- Médecine interne, CHU de Bordeaux, Bordeaux, France
| | | | - Pierrick Henneton
- Service de Médecine Interne A, Hôpital Saint Eloi, CHRU de Montpellier, Montpellier, France
| | - Philippe Guilpain
- Service de Médecine Interne A, Hôpital Saint Eloi, CHRU de Montpellier, Montpellier, France
| | - Nicolas Schleinitz
- Médecine interne, Aix-Marseille Universite, Hôpital de la Timone, Marseille, France
| | | | - Hervé Lobbes
- Médecine interne, CHU Estaing, Clermont-Ferrand, France
| | - Valentin Lacombe
- Médecine interne et immunologique clinique, CHU Angers, Angers, France
| | | | | | - Vincent Langlois
- Médecine interne et infectieuse, Hospital Group Le Havre, Le Havre, France
| | - Roderau Outh
- Service de médecine interne et générale, CH Perpignan, Perpignan, France
| | - Julien Vinit
- Médecine interne, Hospital Centre Chalon-sur-Saon, Chalon-sur-Saone, France
| | | | - Paul Decker
- Médecine interne et immunologie clinique, CHU de Nancy, Nancy, France
| | - Thomas Moulinet
- Médecine interne et immunologie clinique, CHU de Nancy, Nancy, France
| | - Yannick Dieudonné
- Immunologie Clinique et Médecine Interne, CHU de Strasbourg, Strasbourg, France
| | | | - Louis Terriou
- Médecine interne - hématologie, CHU Lille, Lille, France
| | - Alexandre Vlakos
- Médecine interne, Haute-Saône Hospital Group Vesoul Site, Vesoul, France
| | | | - Guillaume Denis
- Médecine interne et hématologie, Centre Hospitalier de Rochefort, Rochefort, France
| | | | - Marie Kostine
- Rhumatologie, Centre Hospitalier Universitaire de Bordeaux Groupe hospitalier Pellegrin, Bordeaux, France
| | - Sebastien Humbert
- Hématologie, Centre Hospitalier Universitaire de Besancon, Besancon, France
| | | | | | - Susann Pechuzal
- Médecine interne-polyvalente, Hôpitaux Drôme Nord, Romans, France
| | | | - Olivier Kosmider
- Service d'Hématologie Biologique, DMU BioPhyGen, APHP, Paris, France
| | - Jeremie Dion
- Médecine interne, Université Toulouse III-Paul Sabatier Faculté de santé, Centre Hospitalier Universitaire de Toulouse Pole IUC de Toulouse Oncopole CHU, Toulouse, France
| | | | - Rim Bourguiba
- Médecine interne, CEREMAIA, Sorbonne Université, Hospital Tenon, Paris, France
| | - Benjamin Terrier
- Médecine interne, Université Paris Cité, Hospital Cochin, Paris, France
| | | | - Olivier Fain
- Médecine Interne, Sorbonne université, Hopital Saint-Antoine, Paris, France
| | - Arsène Mekinian
- Médecine Interne, Sorbonne université, Hopital Saint-Antoine, Paris, France
| | - Marjolaine Morgand
- Médecine Interne, Sorbonne université, Hopital Saint-Antoine, Paris, France
| | - Thibault Comont
- Médecine interne, Université Toulouse III-Paul Sabatier Faculté de santé, Centre Hospitalier Universitaire de Toulouse Pole IUC de Toulouse Oncopole CHU, Toulouse, France
| | - Jerome Hadjadj
- Médecine Interne, Sorbonne université, Hopital Saint-Antoine, Paris, France
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Sun XY, Yang XD, Xu J, Xiu NN, Ju B, Zhao XC. Tuberculosis-induced aplastic crisis and atypical lymphocyte expansion in advanced myelodysplastic syndrome: A case report and review of literature. World J Clin Cases 2023; 11:4713-4722. [PMID: 37469724 PMCID: PMC10353497 DOI: 10.12998/wjcc.v11.i19.4713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/22/2023] [Accepted: 05/31/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Myelodysplastic syndrome (MDS) is caused by malignant proliferation and ineffective hematopoiesis. Oncogenic somatic mutations and increased apoptosis, necroptosis and pyroptosis lead to the accumulation of earlier hematopoietic progenitors and impaired productivity of mature blood cells. An increased percentage of myeloblasts and the presence of unfavorable somatic mutations are signs of leukemic hematopoiesis and indicators of entrance into an advanced stage. Bone marrow cellularity and myeloblasts usually increase with disease progression. However, aplastic crisis occasionally occurs in advanced MDS.
CASE SUMMARY A 72-year-old male patient was definitively diagnosed with MDS with excess blasts-1 (MDS-EB-1) based on an increase in the percentages of myeloblasts and cluster of differentiation (CD)34+ hematopoietic progenitors and the identification of myeloid neoplasm-associated somatic mutations in bone marrow samples. The patient was treated with hypomethylation therapy and was able to maintain a steady disease state for 2 years. In the treatment process, the advanced MDS patient experienced an episode of progressive pancytopenia and bone marrow aplasia. During the aplastic crisis, the bone marrow was infiltrated with sparsely distributed atypical lymphocytes. Surprisingly, the leukemic cells disappeared. Immunological analysis revealed that the atypical lymphocytes expressed a high frequency of CD3, CD5, CD8, CD16, CD56 and CD57, suggesting the activation of autoimmune cytotoxic T-lymphocytes and natural killer (NK)/NKT cells that suppressed both normal and leukemic hematopoiesis. Elevated serum levels of inflammatory cytokines, including interleukin (IL)-6, interferon-gamma (IFN-γ) and tumor necrosis factor-alpha (TNF-α), confirmed the deranged type I immune responses. This morphological and immunological signature led to the diagnosis of severe aplastic anemia secondary to large granule lymphocyte leukemia. Disseminated tuberculosis was suspected upon radiological examinations in the search for an inflammatory niche. Antituberculosis treatment led to reversion of the aplastic crisis, disappearance of the atypical lymphocytes, increased marrow cellularity and 2 mo of hematological remission, providing strong evidence that disseminated tuberculosis was responsible for the development of the aplastic crisis, the regression of leukemic cells and the activation of CD56+ atypical lymphocytes. Reinstitution of hypomethylation therapy in the following 19 mo allowed the patient to maintain a steady disease state. However, the patient transformed the disease phenotype into acute myeloid leukemia and eventually died of disease progression and an overwhelming infectious episode.
CONCLUSION Disseminated tuberculosis can induce CD56+ lymphocyte infiltration in the bone marrow and in turn suppress both normal and leukemic hematopoiesis, resulting in the development of aplastic crisis and leukemic cell regression.
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Affiliation(s)
- Xiao-Yun Sun
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao 266555, Shandong Province, China
| | - Xiao-Dong Yang
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao 266555, Shandong Province, China
| | - Jia Xu
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao 266555, Shandong Province, China
| | - Nuan-Nuan Xiu
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao 266555, Shandong Province, China
| | - Bo Ju
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao 266555, Shandong Province, China
| | - Xi-Chen Zhao
- Department of Hematology, The Central Hospital of Qingdao West Coast New Area, Qingdao 266555, Shandong Province, China
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