RT Journal Article T1 gd T lymphocytes in the diagnosis of human T cell receptorimmunodeficiencies A1 Garcillán Goyoaga, Beatriz de A1 Marín Marín, Ana Victoria A1 Jiménez Reinoso, Anaïs A1 Briones Contreras, Alejandro A1 Muñoz Ruiz, Miguel A1 García León, María J A1 Gil Calle, Juana Nelly A1 Allende Martínez, Luis Miguel A1 Martínez Naves, Eduardo A1 Toribio, Maria Luisa A1 Regueiro González-Barros, José Ramón AB Human T cell receptor (TCR) immunodeficiencies (TCRID) are rare autosomal recessive disorders caused by mutations affecting TCR, CD3, or CD247 chains, which share developmental, functional, and TCR expression defects (1).Their rapid diagnosis is fundamental for patient survival and early hematopoietic stemcell transplantation.Here,we propose that studying gd T cells, which are often neglected, can be helpful for a timely diagnosis. We thus offer a diagnostic flowchart and some lab tricks based on published cases. PB Frontiers Media SN 1664-3224 YR 2015 FD 2015-06-25 LK https://hdl.handle.net/20.500.14352/23905 UL https://hdl.handle.net/20.500.14352/23905 LA eng NO Ministerio de Economia y Competitividad (MINECO) NO Insituto de Salud Carlos III (ISCIII) NO Comunidad de Madrid NO Fundación Lair DS Docta Complutense RD 19 abr 2025