ArticleHuman genomics2023
Distribution of alpha1 antitrypsin rare alleles in six countries: Results from the Progenika diagnostic network.
Article in Human genomics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
- Community-BasedBiomedicines · 2026Article
- Alpha 1 Antitrypsin Suppresses Autoantibody Production and Cellular Autoimmunity in Chronic Graft-Versus-Host Disease (cGVHD) in a Lupus Mouse Model.Biomolecules · 2026Article
- Functional and clinical significance of novel SERPINA1 variants on alpha-1 antitrypsin deficiency.Respiratory research · 2026Article
- The phenotypic state of biallelicERJ open research · 2025Article
- Alpha-1 Antitrypsin PI M Heterozygotes with Rare Variants: Do They Need a Clinical and Functional Follow-Up?Journal of clinical medicine · 2024Article
- Recommendations for the diagnosis and treatment of alpha-1 antitrypsin deficiency.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2024Article
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Authors and funding
10 authors at 7 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundKnowledge of the frequency of rare SERPINA1 mutations could help in the management of alpha1 antitrypsin deficiency (AATD). The present study aims to assess the frequencies of rare and null alleles and their respiratory and hepatic pathogenicity.
methodsThis is a secondary analysis of a study that evaluated the viability of the Progenika diagnostic genotyping system in six different countries by analyzing 30,827 samples from cases of suspected AATD. Allele-specific genotyping was carried out with the Progenika A1AT Genotyping Test which analyses 14 mutations in buccal swabs or dried blood spots samples. SERPINA1 gene sequencing was performed for serum AAT-genotype discrepancies or by request of the clinician. Only cases with rare mutations were included in this analysis.
resultsThere were 818 cases (2.6%) carrying a rare allele, excluding newly identified mutations. All were heterozygous except for 20 that were homozygous. The most frequent alleles were the M-like alleles, PI*M
conclusionsThe Progenika diagnostic network has allowed the identification of several rare alleles, some unexpected and not included in the initial diagnostic panel. This establishes a new perspective on the distribution of these alleles in different countries. These findings may help prioritize allele selection for routine testing and highlights the need for further research into their pathogenetic role.
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