2026-06-08T04:20:03Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/1141432025-03-18T12:31:07Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author López-Nevado, Marta author González Granado, Luis Ignacio author Ruiz Contreras, Jesús author Paz Artal, Estela Natividad author Allende Martínez, Luis Miguel 2025-01-14T09:07:35Z 2025-01-14T09:07:35Z 2021-08-10 López-Nevado M, González-Granado LI, Ruiz-García R, Pleguezuelo D, Cabrera-Marante O, Salmón N, Blanco-Lobo P, Domínguez-Pinilla N, Rodríguez-Pena R, Sebastián E, Cruz-Rojo J, Olbrich P, Ruiz-Contreras J, Paz-Artal E, Neth O, Allende LM. Primary Immune Regulatory Disorders With an Autoimmune Lymphoproliferative Syndrome-Like Phenotype: Immunologic Evaluation, Early Diagnosis and Management. Front Immunol. 2021 Aug 10;12:671755. doi: 10.3389/fimmu.2021.671755. PMID: 34447369; PMCID: PMC8382720. 1664-3224 10.3389/fimmu.2021.671755 https://hdl.handle.net/20.500.14352/114143 https://doi.org/10.3389/fimmu.2021.671755 Primary immune regulatory disorders (PIRD) are associated with autoimmunity, autoinflammation and/or dysregulation of lymphocyte homeostasis. Autoimmune lymphoproliferative syndrome (ALPS) is a PIRD due to an apoptotic defect in Fas-FasL pathway and characterized by benign and chronic lymphoproliferation, autoimmunity and increased risk of lymphoma. Clinical manifestations and typical laboratory biomarkers of ALPS have also been found in patients with a gene defect out of the Fas-FasL pathway (ALPS-like disorders). Following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA), we identified more than 600 patients suffering from 24 distinct genetic defects described in the literature with an autoimmune lymphoproliferative phenotype (ALPS-like syndromes) corresponding to phenocopies of primary immunodeficiency (PID) (NRAS, KRAS), susceptibility to EBV (MAGT1, PRKCD, XIAP, SH2D1A, RASGRP1, TNFRSF9), antibody deficiency (PIK3CD gain of function (GOF), PIK3R1 loss of function (LOF), CARD11 GOF), regulatory T-cells defects (CTLA4, LRBA, STAT3 GOF, IL2RA, IL2RB, DEF6), combined immunodeficiencies (ITK, STK4), defects in intrinsic and innate immunity and predisposition to infection (STAT1 GOF, IL12RB1) and autoimmunity/autoinflammation (ADA2, TNFAIP3,TPP2, TET2). CTLA4 and LRBA patients correspond around to 50% of total ALPS-like cases. However, only 100% of CTLA4, PRKCD, TET2 and NRAS/KRAS reported patients had an ALPS-like presentation, while the autoimmunity and lymphoproliferation combination resulted rare in other genetic defects. Recurrent infections, skin lesions, enteropathy and malignancy are the most common clinical manifestations. Some approaches available for the immunological study and identification of ALPS-like patients through flow cytometry and ALPS biomarkers are provided in this work. Protein expression assays for NKG2D, XIAP, SAP, CTLA4 and LRBA deficiencies and functional studies of AKT, STAT1 and STAT3 phosphorylation, are showed as useful tests. Patients suspected to suffer from one of these disorders require rapid and correct diagnosis allowing initiation of tailored specific therapeutic strategies and monitoring thereby improving the prognosis and their quality of life. eng Attribution-NonCommercial-NoDerivatives 4.0 International Primary Immune Regulatory Disorders With an Autoimmune Lymphoproliferative Syndrome-Like Phenotype: Immunologic Evaluation, Early Diagnosis and Management journal article 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URL https://docta.ucm.es/bitstreams/f765000e-056d-4938-87a6-b848e22cdc99/download File MD5 460d143da9c9bd8143f4bb01f846d284 3075233 application/pdf 2021_Primary Immune Regulatory.pdf URL https://docta.ucm.es/bitstreams/38a66d9e-e121-476f-9252-af6c650658c8/download File MD5 1cfa441d7cc7cfcf675e57d2348482d7 92323 text/plain 2021_Primary Immune Regulatory.pdf.txt