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Life-Threatening Pneumopathy and U urealyticum in a STAT3-Deficient Hyper-IgE Syndrome Patient

Abstract : A deficiency in signal transducer and activator of transcription 3 (STAT3) is responsible for autosomal dominant hyperimmunoglobulin E syndrome, an immunodeficiency syndrome causing Staphylococcus aureus, Streptococcus pneumonia, Haemophilus influenzae, and, rarely, Pseudomonas aeruginosa and Aspergillus sp infections. Currently, intracellular pathogens are not targeted in the management of severe infections. The pathophysiologic mechanism of hyperimmunoglobulin E syndrome immunodeficiency has recently been linked to a disorder in the T helper 17 pathway and disruption of the interleukin -23/interleukin-17 axis. We report an unusual case of severe pleuropneumopathy by Ureaplasma urealyticum in a teenage girl with STAT3-deficient hyperimmunoglobulin E syndrome (STAT3 HIES). A previous case of severe lung infection by Mycoplasma pneumoniae has already been described in a STAT3-deficient patient, but U urealyticum has never been reported in patients with STAT3 HIES. After a review of the literature, it seems that the specific immunodeficiency pathway of STAT3 HIES exposes STAT3 HIES patients to Ureaplasma lung infections because the pathophysiology of STAT3 HIES and Ureaplasma is based on STAT3 and T helper 17 cells.
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Submitted on : Wednesday, November 27, 2019 - 12:09:39 PM
Last modification on : Wednesday, September 23, 2020 - 4:33:30 AM

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Guillaume Deverrière, Ludovic Lemée, Steven Grange, Sophie Boyer, Capucine Picard, et al.. Life-Threatening Pneumopathy and U urealyticum in a STAT3-Deficient Hyper-IgE Syndrome Patient. Pediatrics, American Academy of Pediatrics, 2017, 139 (6), pp.e20160845. ⟨10.1542/peds.2016-0845⟩. ⟨hal-02382736⟩

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