
Liu and colleagues conducted a study to investigate the role of rare genetic variants in familial pulmonary fibrosis. They analyzed individuals from 569 families and identified rare variants in surfactant- or telomere-related genes. They found that 13.5% of the families had known pathogenic variants in telomere-related genes, and an additional 7.9% had rare variants of unknown significance. The majority of these rare variants were found in the TERT or RTEL1 genes. They also identified candidate genes by studying large families without telomere- or surfactant-related variants. One promising candidate gene was SYDE1, which had rare variants in two affected families. Gene-based risk scores were generated, highlighting several novel candidate genes, with telomere and surfactant genes being highly prioritized. The study suggests that multiple genes and pathways may contribute to familial pulmonary fibrosis risk. The study emphasizes the potential of genetic testing for early detection and improved clinical outcomes in individuals with a family history of pulmonary fibrosis.
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