Inherited IL-12p40 deficiency: genetic, immunologic, and clinical features of 49 patients from 30 kindreds.

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ID Serval
serval:BIB_9D8759A4A7D5
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Inherited IL-12p40 deficiency: genetic, immunologic, and clinical features of 49 patients from 30 kindreds.
Périodique
Medicine
Auteur⸱e⸱s
Prando C., Samarina A., Bustamante J., Boisson-Dupuis S., Cobat A., Picard C., AlSum Z., Al-Jumaah S., Al-Hajjar S., Frayha H., Al-Mousa H., Ben-Mustapha I., Adimi P., Feinberg J., de Suremain M., Jannière L., Filipe-Santos O., Mansouri N., Stephan J.L., Nallusamy R., Kumararatne D.S., Bloorsaz M.R., Ben-Ali M., Elloumi-Zghal H., Chemli J., Bouguila J., Bejaoui M., Alaki E., AlFawaz T.S., Al Idrissi E., ElGhazali G., Pollard A.J., Murugasu B., Wah Lee B., Halwani R., Al-Zahrani M., Al Shehri M.A., Al-Zahrani M., Bin-Hussain I., Mahdaviani S.A., Parvaneh N., Abel L., Mansouri D., Barbouche R., Al-Muhsen S., Casanova J.L.
ISSN
1536-5964 (Electronic)
ISSN-L
0025-7974
Statut éditorial
Publié
Date de publication
03/2013
Peer-reviewed
Oui
Volume
92
Numéro
2
Pages
109-122
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
Autosomal recessive interleukin (IL)-12 p40 (IL-12p40) deficiency is a rare genetic etiology of mendelian susceptibility to mycobacterial disease (MSMD). We report the genetic, immunologic, and clinical features of 49 patients from 30 kindreds originating from 5 countries (India, Iran, Pakistan, Saudi Arabia, and Tunisia). There are only 9 different mutant alleles of the IL12B gene: 2 small insertions, 3 small deletions, 2 splice site mutations, and 1 large deletion, each causing a frameshift and leading to a premature stop codon, and 1 nonsense mutation. Four of these 9 variants are recurrent, affecting 25 of the 30 reported kindreds, due to founder effects in specific countries. All patients are homozygous and display complete IL-12p40 deficiency. As a result, the patients lack detectable IL-12p70 and IL-12p40 and have low levels of interferon gamma (IFN-γ). The clinical features are characterized by childhood onset of bacille Calmette-Guérin (attenuated Mycobacterium bovis strain) (BCG) and Salmonella infections, with recurrences of salmonellosis (36.4%) more common than recurrences of mycobacterial disease (25%). BCG vaccination led to BCG disease in 40 of the 41 patients vaccinated (97.5%). Multiple mycobacterial infections were rare, observed in only 3 patients, whereas the association of salmonellosis and mycobacteriosis was observed in 9 patients. A few other infections were diagnosed, including chronic mucocutaneous candidiasis (n = 3), nocardiosis (n = 2), and klebsiellosis (n = 1). IL-12p40 deficiency has a high but incomplete clinical penetrance, with 33.3% of genetically affected relatives of index cases showing no symptoms. However, the prognosis is poor, with mortality rates of up to 28.6%. Overall, the clinical phenotype of IL-12p40 deficiency closely resembles that of interleukin 12 receptor β1 (IL-12Rβ1) deficiency. In conclusion, IL-12p40 deficiency is more common than initially thought and should be considered worldwide in patients with MSMD and other intramacrophagic infectious diseases, salmonellosis in particular.
Mots-clé
Adolescent, Adult, Age of Onset, Asia, Western/epidemiology, Child, Child, Preschool, Cohort Studies, DNA Mutational Analysis, Female, Founder Effect, Genetic Predisposition to Disease, Humans, Infant, Interleukin-12 Subunit p40/deficiency, Interleukin-12 Subunit p40/genetics, Male, Mycobacterium Infections, Nontuberculous/genetics, Mycobacterium Infections, Nontuberculous/immunology, Mycobacterium Infections, Nontuberculous/mortality, Penetrance, Salmonella Infections/genetics, Survival Analysis, Tunisia/epidemiology, Young Adult
Pubmed
Web of science
Création de la notice
04/02/2021 18:57
Dernière modification de la notice
25/01/2024 7:41
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