Immunodeficiency |
Department of Infectious and Pediatric Immunology, Medical and Health Science Centre, University of Debrecen, Debrecen, Hungary
Correspondence: László Maródi, MD, PhD, Department of Infectious and Pediatric Immunology, University of Debrecen Medical and Health Science Centre, Nagyerdei Krt. 98, H-4032 Debrecen, Hungary. Phone: international +36.52.416841. Fax: international +36.52.430323. E-mail: lmarodi{at}jaguar.dote.hu
All males in two generations of a Hungarian family died of interstitial pneumonia. History and records suggested X-linked hyper-IgM syndrome (X-HIGM). DNA sequencing of a female carrier revealed a c. 654C
A transversion of the CD40L gene that predicts premature termination of CD40L synthesis. This report points to the importance of early carrier detection and genetic counseling in families with X-linked primary immunodeficiency diseases. We propose that the c.654C
A sequence variant may associate with severe X-HIGM phenotype.
Key words: hyper-IgM syndrome, CD40 ligand, mutational analysis.