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Primary T-cell immunodeficiencies
1INSERM U 132, Hôpital des Enfants-Malades, Paris, France.
The phenotypes of many primary T-cell immunodeficiencies have been described, including diseases associated with defective T-cell differentiation and/or activation. Recently, genotypes have been defined for some of them, such as X-linked severe combined immunodeficiency and CD3 deficiencies (or hyper IgM syndrome). Phenotype/genotype correlation studies open a fruitful way to a better understanding of primary T-cell immunodeficiencies.
The phenotypes of many primary T-cell immunodeficiencies have been described, including diseases associated with defective T-cell differentiation and/or activation. Recently, genotypes have been defined for some of them, such as X-linked severe combined immunodeficiency and CD3 deficiencies (or hyper IgM syndrome). Phenotype/genotype correlation studies open a fruitful way to a better understanding of primary T-cell immunodeficiencies.