Clinical immunology (Orlando, Fla.) · 2018
Clinical and molecular features of X-linked hyper IgM syndrome - An experience from North India.
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Rawat Amit, Mathew Babu, Pandiarajan Vignesh, Jindal Ankur, Sharma Madhubala, Suri Deepti, Gupta Anju, Goel Shubham, Karim Adil, Saikia Biman, Minz Ranjana W, Imai Kohsuke, Nonoyama Shigeaki, Ohara Osamu, Giliani Silvia Clara, Notarangelo Luigi D, Chan Koon-Wing, Lau Yu-Lung, Singh Surjit
Аннотация
X-linked hyper IgM Syndrome (XLHIGM), the most frequent form of the Hyper IgM syndromes is a primary immune deficiency resulting from a mutation in the CD40 ligand gene (CD40LG). We analyzed the clinical and laboratory features of ten patients with XLHIGM, who were diagnosed at a tertiary care hospital in North India. Most common infections were sinopulmonary infections (80%) and diarrhea (50%). Sclerosing cholangitis and necrotising fasciitis were noted in one patient each. Three novel mutations in CD40LG (c.429_429 delA, p. G144DfsX5; c.500 G > A, p.G167E and c.156 G > C, p.K52 N) were detected. In addition, we found one missense mutation, two splice site mutations and two large deletions, which have been previously reported. Four (4) patients had expired at the time of analysis. We report the first series of XLHIGM from North India where we have documented unique features such as pulmonary alveolar proteinosis and infections with Mycobacterium sp.