A novel germline mutation of the SFTPA1 gene in familial interstitial pneumonia

Publikace nespadá pod Lékařskou fakultu, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.

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DOUBKOVÁ Martina STAŇO KOZUBÍK Kateřina RADOVÁ Lenka PEŠOVÁ Michaela TRIZULJAK Jakub PÁL Karol SVOBODOVÁ Klára RÉBLOVÁ Kamila SVOZILOVÁ Hana VRZALOVÁ Zuzana POSPÍŠILOVÁ Šárka DOUBEK Michael

Druh Článek v odborném periodiku
Časopis / Zdroj HUMAN GENOME VARIATION
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
WWW https://www.nature.com/articles/s41439-019-0044-z
Doi http://dx.doi.org/10.1038/s41439-019-0044-z
Klíčová slova IDIOPATHIC PULMONARY-FIBROSIS; SURFACTANT PROTEIN-A; LUNG-DISEASE; PATHOLOGICAL FEATURES; RTEL1; DIAGNOSIS; VARIANTS; UPDATE; ABCA3
Popis Different genes related to alveolar stability have been associated with familial interstitial pneumonia (FIP). Here, we report a novel, rare SFTPA1 variant in a family with idiopathic interstitial pneumonia (IIP). We performed whole-exome sequencing on germline DNA samples from four members of one family; three of them showed signs of pulmonary fibrosis (idiopathic interstitial pneumonia) with autosomal-dominant inheritance. A heterozygous single nucleotide variant c.532 G > A in the SFTPA1 gene has been identified. This variant encodes the substitution p.(Val178Met), localized within the carbohydrate recognition domain of surfactant protein A and segregates with the genes causing idiopathic interstitial pneumonia. This rare variant has not been previously reported. We also analyzed the detected sequence variant in the protein structure in silica The replacement of valine by the larger methionine inside the protein may cause a disruption in the protein structure. The c.532 G > A variant was further validated using Sanger sequencing of the amplicons, confirming the diagnosis in all symptomatic family members. Moreover, this variant was also found by Sanger sequencing in one other symptomatic family member and one young asymptomatic family member. The autosomal-dominant inheritance, the family history of IIP, and the evidence of a mutation occurring in part of the SFTPA1 gene all suggest a novel variant that causes FIP.
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