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|a 10.1016/j.clim.2024.110335
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|a eng
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| 100 |
1 |
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|a Macias Robles, Ana Paola
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Anti-IL12p40 autoantibodies in a teenage girl with multiple recurrent abscesses
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 16.08.2024
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|a Date Revised 22.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024. Published by Elsevier Inc.
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|a More frequent among adults, phenocopies may be caused by somatic mutations or anti-cytokine autoantibodies, mimicking the phenotypes of primary immunodeficiencies. A fourteen-year-old girl was referred for a two-year history of weight loss and multiple recurrent abscesses, complicated recurrent pneumonia, pyelonephritis, osteomyelitis, and septic shock, without fever. She had started with nausea, hyporexia, and weight loss, then with abscesses in her hands, knee, ankle, and spleen. She also developed a rib fracture and left thoracic herpes zoster. The patient was cachectic, with normal vital signs, bilateral crackles on chest auscultation, tumefaction of the knee joint, and poorly healed wounds in hands and chest, oozing a yellowish fluid. Chest computed tomography revealed multiple bilateral bronchiectases. Laboratory workup reported chronic anemia, leukocytosis, neutrophilia, mild lymphopenia, thrombocytosis, pan-hypergammaglobulinemia, and elevated acute serum reactants. Lymphocyte subsets were low but present. Mycobacterium tuberculosis was detected via polymerase chain reaction in a bone biopsy specimen from ankle osteomyelitis. Whole-exome sequencing failed to identify a monogenic defect. Interleukin-12 was found markedly elevated in the serum of the patient. Phosphorylation of STAT4, induced by increasing doses of IL-12, was neutralized by patient serum, confirming the presence of anti-IL12 autoantibodies. IL-12 and IL-23 are crucial cytokines in the defense against intracellular microorganisms, the induction of interferon-gamma production by lymphocytes, and other inflammatory functions. Patients who develop neutralizing serum autoantibodies against IL12 manifest late in life with weight loss, multiple recurrent abscesses, poor wound healing, and fistulae. Treatment with anti-CD20 monoclonal antibodies was effective
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|a Case Reports
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|a Journal Article
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|a Anti-CD20 monoclonal antibody
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|a Anti-cytokine
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|a Autoantibodies
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|a IL-12
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|a IL-23
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| 650 |
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|a Inborn errors of immunity
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| 650 |
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|a Late onset
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| 650 |
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|a Multiple recurrent abscesses
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| 650 |
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|a Phenocopy
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|a Teenage
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| 650 |
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7 |
|a Autoantibodies
|2 NLM
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| 650 |
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|a Interleukin-12 Subunit p40
|2 NLM
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| 700 |
1 |
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|a Cheng, Aristine
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Holland, Steven M
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| 700 |
1 |
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|a Lugo Reyes, Saul O
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Clinical immunology (Orlando, Fla.)
|d 1999
|g 266(2024) vom: 02. Aug., Seite 110335
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|u http://dx.doi.org/10.1016/j.clim.2024.110335
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