J Clin Immunol. 2026 May 19. doi: 10.1007/s10875-026-02026-w. Online ahead of print.
ABSTRACT
OBJECTIVE: To perform genetic diagnosis and pedigree analysis in a case of autosomal dominant Familial Behçet-like Autoinflammatory Syndrome type 3 (AIFBL3) caused by a novel RELA variant.
METHODS: Peripheral blood samples collected from the proband and parents underwent conventional genetic screening, next-generation sequencing (NGS), and Sanger sequencing for familial validation.
RESULTS: A de novo heterozygous RELA variant (NM_021975.4:c.539 C > T, p.Ser180Phe) was identified in the proband. Parental testing confirmed its de novo origin.
CONCLUSION: The RELA c.539 C > T variant was classified as likely pathogenic for AIFBL3, providing a basis for genetic counseling. In future pregnancies, prenatal diagnosis through targeted familial mutation analysis could be offered to this family to inform reproductive decision-making.
PMID:42151600 | DOI:10.1007/s10875-026-02026-w