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Human nuclear factor κB essential modulator mutation can result in immunodeficiency without ectodermal dysplasia  Jordan S. Orange, MD, PhD, Ofer Levy,

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Presentation on theme: "Human nuclear factor κB essential modulator mutation can result in immunodeficiency without ectodermal dysplasia  Jordan S. Orange, MD, PhD, Ofer Levy,"— Presentation transcript:

1 Human nuclear factor κB essential modulator mutation can result in immunodeficiency without ectodermal dysplasia  Jordan S. Orange, MD, PhD, Ofer Levy, MD, PhD, Scott R. Brodeur, PhD, Konrad Krzewski, PhD, Rene M. Roy, BA, Julie E. Niemela, BS, Thomas A. Fleisher, MD, Francisco A. Bonilla, MD, PhD, Raif S. Geha, MD  Journal of Allergy and Clinical Immunology  Volume 114, Issue 3, Pages (September 2004) DOI: /j.jaci Copyright © 2004 American Academy of Allergy, Asthma and Immunology Terms and Conditions

2 Fig 1 Phenotype of a patient with IKBKG mutation and immunodeficiency without ED. A, Facial appearance of a patient with IKBKG mutation with normal hair pattern and teeth and without characteristics of ED. B, Abdominal skin lesions that contained granulomatous inflammation at 48× (C) and 750× (D) magnification. E, Lesional detail shown at 1200× magnification contained acid-fast bacilli (arrow) and grew Mycobacterium bovis on culture. Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci ) Copyright © 2004 American Academy of Allergy, Asthma and Immunology Terms and Conditions

3 Fig 2 Genotype of a patient with IKBKG mutation and immunodeficiency without ED. A, Genomic IKBKG DNA sequences obtained from the peripheral blood of the patient and his mother aligned with WT sequence display an exon 9 (−1) G-to-A substitution found only in the patient. Both WT and mutant splice-site sequences are amplified from genomic DNA isolated from either patient peripheral blood or epithelial cells. B, cDNA isolated from either total peripheral blood white cells (total) or PBMCs contain mutant sequences with a skipped exon 9, as well as WT sequences. The ratio of mutant sequence to WT sequence, as determined by the relative heights of the sequence peaks, differs in samples obtained on distinct dates. Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci ) Copyright © 2004 American Academy of Allergy, Asthma and Immunology Terms and Conditions

4 Fig 3 Variably decreased WT NEMO protein caused by IKBKG intronic splice-site mutation. A, The presence of WT NEMO, as detected by mAb, directed against the LZ-containing region is decreased in lysates from the patient's PBMCs relative to those of his mother and father (top). Total detectable NEMO in PBMC lysates is not decreased in the patient relative to his mother and father by using a pAb directed against the C-terminal ZF (middle). Amounts of actin present in each sample are shown for comparison (bottom). The 2 species of NEMO detected by both antibodies have been previously observed with these reagents and are believed to represent a posttranslational modification of the protein. B, Lysates from TWC (T) and PBMC (P) populations prepared from a control donor and the patient were evaluated for the expression of WT NEMO by using the LZ mAb (top). These samples were prepared from blood drawn from the patient on distinct dates from those shown in Fig 3, A. The amount of actin in each lysate is shown for comparison (bottom). There was approximately 20-fold less NEMO per microgram of lysate in the PBMC population relative to the TWC population in both patient and control samples. Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci ) Copyright © 2004 American Academy of Allergy, Asthma and Immunology Terms and Conditions

5 Fig 4 Impaired CD40 function in patient cells. A, Proliferation of PBMCs from the patient (gray bars) and a control subject (black and white bars) in response to medium, anti-CD40, or anti-CD40 with added IL-4 are shown for 2 separate experiments. B, Nuclear accumulation of NF-κB p65 in enriched B cells from the patient and his mother and father with or without anti-CD40 stimulation are shown by means of electrophoretic mobility shift assay. NF-κB p65 is noted by the arrow, and the signal at the bottom of each lane represents free probe. Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci ) Copyright © 2004 American Academy of Allergy, Asthma and Immunology Terms and Conditions

6 Fig 5 Partially impaired TLR responses from patient cells. TNF-α produced after a 5-hour incubation of whole blood with increasing concentrations of 8 different TLR ligands was determined by means of ELISA. The individual TLR ligands are listed in the upper left corner of each graph. The specificity of these particular ligands for cognate TLR receptors was determined, as defined in the Methods section, and is synthetic triacylated bacterial lipopeptide–TLR1/2, macrophage-activating lipopeptide 2–TLR 2/6, poly dI-dC–TLR3, LPS–TLR4, flagellin–TLR5, imiquimod–TLR7, R848–TLR 7/8, and oligodinucleotide 2216–TLR9. Four individual experiments are shown for the patient from blood collected at different time points weeks to months apart, each in a different color. The gray regions represent ±1 SD from the mean for 6 to 8 control donors. The only mean patient values that were significantly different from control donors (P < .05) were those obtained with flagellin and oligodinucleotide 2216, as well as the highest concentration of LPS (P < .05). Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci ) Copyright © 2004 American Academy of Allergy, Asthma and Immunology Terms and Conditions

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