%0 Journal Article
%T Protein Kinase C-Delta Defect in Autoimmune Lymphoproliferative Syndrome-Like Disease: First Case from the National Iranian Registry and Review of the Literature.
%A Sharifinejad N
%A Azizi G
%A Behniafard N
%A Zaki-Dizaji M
%A Jamee M
%A Yazdani R
%A Abolhassani H
%A Aghamohammadi A
%J Immunol Invest
%V 0
%N 0
%D Oct 2020 13
%M 33047643
%F 3.044
%R 10.1080/08820139.2020.1829638
%X <B>UNASSIGNED: </B>Protein kinase C is a family of serine/threonine kinases that play a key role in the adaptive immune cell signaling, as well as regulation of growth, apoptosis, and differentiation of a variety of cell types. Patients homozygous for a null mutation of the Protein Kinase C Delta (PRKCD) gene, present clinical feature of immune dysregulation with susceptibility to Epstein-Barr virus infection. However, a minority of patients present the autoimmune lymphoproliferative syndrome (ALPS).<BR><B>UNASSIGNED: </B>The data were collected by direct interview and examining the patient's clinical record. Whole-exome sequencing was performed to detect the underlying genetic mutation in the patient. We also conducted electronic searches for ALPS-like reported patients in PubMed, Web of Science, and Scopus databases.<BR><B>UNASSIGNED: </B>In this study, we reported a 13-year-old boy who presented with autoimmunity, lymphoproliferation, recurrent pneumonia, cardiomyopathy, and dermatological manifestations. An elevation of double-negative T cells, CD8+ T cells, serum IgG level, as well as a reduction in NK cells, was observed in the patient. A homozygous frameshift mutation (c.1293_1294insA) in exon 13 of the PRKCD gene was confirmed. The literature search showed 39 ALPS-like patients with monogenic defects which only six (15.3%) of them were due to PRKCD genes.<BR><B>UNASSIGNED: </B>PRKCD should be considered in the context of ALPS clinical manifestations with prominent dermatological involvements.