Genotype, phenotype, and outcomes of nine patients with T-B plus NK plus SCID

Genotype, phenotype, and outcomes of nine patients with T-B plus NK plus SCID PEDIATRIC TRANSPLANTATION Yu, G. P., Nadeau, K. C., Berk, D. R., de Saint Basile, G., Lambert, N., Knapnougel, P., Roberts, J., Kavanau, K., Dunn, E., Stiehm, E. R., Lewis, D. B., Umetsu, D. T., Puck, J. M., Cowan, M. J. 2011; 15 (7): 733-741

Abstract

There are few reports of clinical presentation, genotype, and HCT outcomes for patients with T-B+NK+ SCID. Between 1981 and 2007, eight of 84 patients with SCID who received and/or were followed after HCT at UCSF had the T-B+NK+ phenotype. One additional patient with T-B+NK+ SCID was identified as the sibling of a patient treated at UCSF. Chart reviews were performed. Molecular analyses of IL7R, IL2RG, JAK3, and the genes encoding the CD3 T-cell receptor components d (CD3D), e (CD3E), and ? (CD3Z) were carried out. IL7R mutations were documented in four patients and CD3D mutations in two others. Three patients had no defects found. Only two of nine patients had an HLA-matched related HCT donor. Both survived, and neither developed GVHD. Five of seven recipients of haploidentical grafts survived. Although the majority of reported cases of T-B+NK+ SCID are caused by defects in IL7R, CD3 complex defects were also found in this series and should be considered when evaluating patients with T-B+NK+ SCID. Additional genes, mutations in which account for T-B+NK+ SCID, remain to be found. Better approaches to early diagnosis and HCT treatment are needed for patients lacking an HLA-matched related donor.

View details for DOI 10.1111/j.1399-3046.2011.01563.x

View details for Web of Science ID 000296049000020

View details for PubMedID 21883749

View details for PubMedCentralID PMC3196791