title: A loss of naivete.
abstract: Monogenic disorders leading to primary immunodeficiency have fascinated scientists and clinicians alike by their capacity to reveal the complexities of intracellular signaling pathways. Two articles in this issue of Blood by Abdollahpour et al and Nehme et al illustrate this point vividly, describing for the first time the clinical and immunologic phenotype associated with genetic mutations in STK4, manifested largely by a loss of T-cell naiveté.
authors.affiliation: Cincinnati Children's Hospital Medical Center, USA.
authors.forename: Kimberly
authors.initials: K
authors.lastname: Risma
mesh_terms: D005260:Female; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000235:genetics* / Q000276:immunology*; D047908:Intracellular Signaling Peptides and Proteins; D008297:Male; D009154:Mutation; D009503:Neutropenia / Q000235:genetics*; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*; D013601:T-Lymphocytes / Q000502:physiology*; D000099317:Hippo Kinases
chemical_list: D047908:Intracellular Signaling Peptides and Proteins; D017346:Protein Serine-Threonine Kinases; C095566:STK4 protein, human; D000099317:Hippo Kinases