J Clin Immunol. 2024 Dec 4;45(1):53. doi: 10.1007/s10875-024-01836-0. ABSTRACT G6PC3 deficiency is a monogenic immunometabolic disorder that causes severe congenital neutropenia type 4. Patients display heterogeneous extra-hematological manifestations, contributing to delayed diagnosis. Here, we investigated the origin and functional consequence of the G6PC3 c.210delC variant found in patients of Mexican descent. Based on the shared … Read more

J Clin Immunol. 2024 Dec 2;45(1):52. doi: 10.1007/s10875-024-01844-0. ABSTRACT Hereditary pulmonary alveolar proteinosis (hPAP) is a rare lung-related primary immunodeficiency. In hPAP, variants of genes encoding the heterodimeric GM-CSF receptor alpha or beta-chains (CSF2Rα, CSF2Rβ) lead to perturbations in GM-CSF signalling. These perturbations impair the scavenging function of pulmonary alveolar macrophages leading to accumulation of … Read more

J Clin Immunol. 2024 Nov 30;45(1):51. doi: 10.1007/s10875-024-01845-z. ABSTRACT BACKGROUND: Multisystem inflammatory syndrome in children (MIS-C) presents some clinical overlap with Kawasaki disease (KD). Although KD is common in Japan, the clinical characteristics of MIS-C in Japan remain unknown. Therefore, we aimed to determine the epidemiological and clinical features of MIS-C in Japan. METHODS: Using … Read more

J Clin Immunol. 2024 Nov 28;45(1):50. doi: 10.1007/s10875-024-01842-2. ABSTRACT Griscelli syndrome type 2 (GS2) is a rare, life-threatening immunodysregulatory disorder characterised by impaired cytotoxic activity leading to susceptibility to haemophagocytic lymphohistiocytosis (HLH) and hypopigmentation. We completed a literature review and analysis of clinical data of 149 patients with GS2 including 8 new patients.We identified three … Read more

J Clin Immunol. 2024 Nov 25;45(1):49. doi: 10.1007/s10875-024-01840-4. ABSTRACT Multisystem inflammatory syndrome in children (MIS-C) has been reported in patients with inborn errors of immunity (IEI), providing insights into disease pathogenesis. Here, we present the first case of MIS-C in a child affected by Wiskott-Aldrich syndrome (WAS) gene mutation, elucidating underlying predisposing factors and the … Read more

J Clin Immunol. 2024 Nov 23;45(1):48. doi: 10.1007/s10875-024-01843-1. ABSTRACT We studied a family with three male individuals across two generations affected by common variable immune deficiency (CVID). We identified a novel missense heterozygous variant (c.2602T>A:p.Y868N) of NFKB2 in all patients and not in healthy relatives. Functional studies of the mutant allele in an overexpression system … Read more

J Clin Immunol. 2024 Nov 23;45(1):47. doi: 10.1007/s10875-024-01833-3. ABSTRACT TRAF3, a versatile adaptor protein within the TRAF family, participates in various signaling pathways involving the tumor necrosis factor receptor, toll-like receptor, and retinoic acid-inducible gene I-like receptor families. In 2010, autosomal dominant TRAF3 deficiency was reported in a patient with herpes simplex virus-1 encephalitis, consistent … Read more

J Clin Immunol. 2024 Nov 23;45(1):46. doi: 10.1007/s10875-024-01831-5. ABSTRACT PURPOSE: CTLA4 deficiency is an inborn error of immunity (IEI) due to heterozygosity for germline loss-of-function variants of the CTLA4 gene located on chromosome 2q33.2. CTLA4 deficiency underlies pleiotropic immune and lymphoproliferation-mediated features with incomplete penetrance. It has been identified in hundreds of patients but copy … Read more

J Clin Immunol. 2024 Nov 20;45(1):45. doi: 10.1007/s10875-024-01839-x. ABSTRACT PURPOSE: The pathogenesis of life-threatening coronavirus disease 2019 (COVID-19) pneumonia in ICU patients can involve pre-existing auto-antibodies (auto-Abs) neutralizing type I interferons (IFNs). The impact of these auto-Abs on SARS-CoV-2 clearance in the lower respiratory tract (LRT) is unclear. METHODS: We performed a retrospective study in … Read more

J Clin Immunol. 2024 Nov 18;45(1):44. doi: 10.1007/s10875-024-01830-6. NO ABSTRACT PMID:39556125 | DOI:10.1007/s10875-024-01830-6