Scopus
🔓 Açık Erişim
Genetic analysis of children with suspected immunodeficiency: mimickers of inborn errors of immunity
European Journal of Pediatrics · Mart 2026
Makale Bilgileri
DergiEuropean Journal of Pediatrics
Yayın TarihiMart 2026
Cilt / Sayfa185
Scopus ID2-s2.0-105032173584
Erişim🔓 Açık Erişim
Özet
Inborn errors of immunity (IEI) comprise a heterogeneous group of disorders with diverse clinical manifestations. In this study, we aimed to evaluate genetic findings in patients with suspected IEI and to assess the contribution of next-generation sequencing (NGS) in identifying both IEI-related and non-IEI-related genetic variants. Between January 2020 and January 2025, 91 pediatric patients (0-18 years) referred for suspected IEI were retrospectively analyzed. Demographic data, clinical features, immunological profiles, and genetic results were reviewed, including single-gene sequencing, fluorescence in situ hybridization (FISH), targeted gene panels (TGP), and whole-exome sequencing (WES). Patients analyzed by NGS were classified into three categories according to detected variants: IEI-related, non-IEI-related, and undetected disease-causing variant. A total of 79 patients underwent NGS-based genetic testing. The mean age was 4.37 ± 5.09 years. WES was performed in 40 patients (50.6%) and TGP in 39 (49.4%). Pathogenic variants linked to IEI-related were detected in 28 patients (35.4%), whereas non-IEI-related pathogenic variants were identified in 12 (15.2%). The remaining 39 patients (49.4%) had undetected disease-causing variants. The diagnoses of patients carrying pathogenic variants unrelated to IEI included primary ciliary dyskinesia, Ellis-van Creveld syndrome, desmoglein-1 deficiency, and others. Conclusion: Our study highlights the importance of genetic testing in the differential diagnosis of IEI and provides evidence supporting its role in identifying mixed IEI phenotypes. Comprehensive interpretation of genetic results within a multidisciplinary clinical framework is essential for accurate diagnosis, appropriate management, and effective genetic counseling.
Yazarlar (4)
1
Saniye Yasemin Yilmaz
ORCID: 0009-0003-7351-9612
2
Ilknur Kulhas Celik
ORCID: 0000-0003-3812-9654
3
Ebru Marzioglu Ozdemir
4
Hasibe Artac
Anahtar Kelimeler
Genetic testing
Inborn errors of immunity
Mimickers of immunodeficiency
Whole-exome sequencing
Kurumlar
Selçuk Tip Fakültesi
Konya Turkey