Molecular Interactions Between NK Cells and Acute Leukemic Cells: KIR2DL5 Drastically Limits NK Cell Responses

J Clin Immunol. 2025 Jul 29;45(1):118. doi: 10.1007/s10875-025-01913-y. ABSTRACT Natural Killer (NK) cells naturally recognize and eliminate leukemic cells. However, the molecular interactions that govern these responses are diverse due to the large number of activating and inhibitory NK receptors that modulate NK functions and the diversity of corresponding ligands that are differentially expressed in … Read more

Reassessing Polysaccharide Responsiveness: Unveiling Limitations of Current Guidelines and Introducing the Polysaccharide Responsiveness Percentile Approach

J Clin Immunol. 2025 Jul 25;45(1):115. doi: 10.1007/s10875-025-01915-w. ABSTRACT BACKGROUND: The assessment of polysaccharide responsiveness via vaccination is pivotal in the evaluation of patients for primary immunodeficiency. However, the applicability of current guidelines provided by the American Academy of Allergy, Asthma & Immunology (AAAAI) has been subject to scrutiny. METHODS: We conducted a prospective study … Read more

Discordant Restoration of TCR Expression and Function by CD247 Somatic Reversions

J Clin Immunol. 2025 Jul 25;45(1):116. doi: 10.1007/s10875-025-01908-9. ABSTRACT BACKGROUND: The CD247 chain of the T-cell receptor (TCR) is essential for normal T cell development and function. Reported CD247-deficient patients showed severe immunodeficiency despite the presence of two populations of peripheral T cells, most with low TCR levels carrying the germline variant and a few … Read more

Dupilumab-induced Eosinophilic Granulomatosis with Polyangiitis Complicated by Peripheral Neuropathic Pain: a Case Report and Literature Review

J Clin Immunol. 2025 Jul 24;45(1):114. doi: 10.1007/s10875-025-01914-x. ABSTRACT PURPOSE: Eosinophilic Granulomatosis with Polyangiitis (EGPA) is a rare vasculitis characterized by increased eosinophils in human tissues and peripheral blood. In this case, we present a 53-year-old female patient with EGPA. By this case and literature review, we want to explain the early manifestations, diagnosis, and … Read more

De Novo Missense Variant c.170 C > A of ELANE in a Chinese Infant with Congenital Neutropenia: Case Report and Literature Review

J Clin Immunol. 2025 Jul 12;45(1):113. doi: 10.1007/s10875-025-01905-y. ABSTRACT Congenital neutropenia (CN) is a rare hereditary blood disorder characterized by a significant reduction in neutrophils, making patients prone to recurrent and severe infections and even a risk of developing myelodysplastic syndrome or acute leukemia, often caused by the ELANE variants, and the complex relationship between … Read more

Evaluation of a Multiplex Electrochemiluminescence Assay for Detection of Anti-Pneumococcal Antibodies in the Diagnosis of Selective Polysaccharide Antibody Deficiency

J Clin Immunol. 2025 Jul 10;45(1):112. doi: 10.1007/s10875-025-01911-0. ABSTRACT Streptococcus pneumoniae can be responsible for severe infections, especially in patients with primary antibody deficiencies like selective anti-polysaccharide antibodies deficiency (SPAD). The reference method recommaned by the World Health Organization for assessment of anti-pneumococcal capsular polysaccharides (PCPs) IgG antibodies is a standardized serotype-specific ELISA (WHO-SSA), but … Read more

Clinicopathological and Immunogenetic Characterization in 8 Patients with Familial Hemophagocytic Lymphohistiocytosis Type 2: A Study from North India with Literature Review

J Clin Immunol. 2025 Jun 19;45(1):108. doi: 10.1007/s10875-025-01895-x. ABSTRACT Familial hemophagocytic lymphohistiocytosis type 2 (FHL2) is the commonest cause of familial hemophagocytic lymphohistiocytosis (FHLH). In this retrospective study, we analyzed 8 patients with a genetic diagnosis of FHL2 and then examined their clinicopathological and perforin flow cytometry results (< 10% expression). The atypical clinical features … Read more

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