Surfactant protein A and B genetic variants predispose to idiopathic pulmonary fibrosis

Derangement in pulmonary surfactant or its components and alveolar collapse are common findings in idiopathic pulmonary fibrosis (IPF). Surfactant proteins play important roles in innate host defense and normal function of the lung. We examined associations between IPF and genetic polymorphic varian...

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Veröffentlicht in:Human genetics 2003-11, Vol.113 (6), p.542-550
Hauptverfasser: SELMAN, Moises, LIN, Hung-Mo, LANG, C. Max, PARDO, Annie, PHELPS, David S, FLOROS, Joanna, MONTANO, Martha, JENKINS, Audrey L, ESTRADA, Andrea, ZHENWU LIN, GUIRONG WANG, DIANGELO, Susan L, XIAOXUAN GUO, UMSTEAD, Todd M
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container_end_page 550
container_issue 6
container_start_page 542
container_title Human genetics
container_volume 113
creator SELMAN, Moises
LIN, Hung-Mo
LANG, C. Max
PARDO, Annie
PHELPS, David S
FLOROS, Joanna
MONTANO, Martha
JENKINS, Audrey L
ESTRADA, Andrea
ZHENWU LIN
GUIRONG WANG
DIANGELO, Susan L
XIAOXUAN GUO
UMSTEAD, Todd M
description Derangement in pulmonary surfactant or its components and alveolar collapse are common findings in idiopathic pulmonary fibrosis (IPF). Surfactant proteins play important roles in innate host defense and normal function of the lung. We examined associations between IPF and genetic polymorphic variants of surfactant proteins, SP-A1, SP-A2, SP-B, SP-C, and SP-D. One SP-A1 (6A(4)) allele and single nucleotide polymorphisms (SNPs) that characterize the 6A(4) allele, and one SP-B (B1580_C) were found with higher frequency ( P
doi_str_mv 10.1007/s00439-003-1015-4
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Max ; PARDO, Annie ; PHELPS, David S ; FLOROS, Joanna ; MONTANO, Martha ; JENKINS, Audrey L ; ESTRADA, Andrea ; ZHENWU LIN ; GUIRONG WANG ; DIANGELO, Susan L ; XIAOXUAN GUO ; UMSTEAD, Todd M</creator><creatorcontrib>SELMAN, Moises ; LIN, Hung-Mo ; LANG, C. Max ; PARDO, Annie ; PHELPS, David S ; FLOROS, Joanna ; MONTANO, Martha ; JENKINS, Audrey L ; ESTRADA, Andrea ; ZHENWU LIN ; GUIRONG WANG ; DIANGELO, Susan L ; XIAOXUAN GUO ; UMSTEAD, Todd M</creatorcontrib><description>Derangement in pulmonary surfactant or its components and alveolar collapse are common findings in idiopathic pulmonary fibrosis (IPF). Surfactant proteins play important roles in innate host defense and normal function of the lung. We examined associations between IPF and genetic polymorphic variants of surfactant proteins, SP-A1, SP-A2, SP-B, SP-C, and SP-D. One SP-A1 (6A(4)) allele and single nucleotide polymorphisms (SNPs) that characterize the 6A(4) allele, and one SP-B (B1580_C) were found with higher frequency ( P&lt;/=0.01) in nonsmoker and smoker IPF ( n=84) subgroups, respectively, compared with healthy controls ( n=194). To explore whether a tryptophan (present in 6A(4)) or an arginine (present in other SP-A1 alleles and in all SP-A2 alleles) at amino acid 219 alters protein behavior, two truncated proteins that varied only at amino acid 219 were oxidized by exposure to ozone. Differences in the absorption spectra (310-350 nm) between the two truncated recombinant SP-A proteins were observed both before and after protein oxidation, suggesting allele-specific aggregation differences attributable to amino acid 219. The SP-B SNP B1580_C (odds ratio:7.63; confidence interval:1.64-35.4; P&lt;/=0.01), to be a risk factor for IPF smokers, has also been shown to be a risk factor for other pulmonary diseases. 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Max</creatorcontrib><creatorcontrib>PARDO, Annie</creatorcontrib><creatorcontrib>PHELPS, David S</creatorcontrib><creatorcontrib>FLOROS, Joanna</creatorcontrib><creatorcontrib>MONTANO, Martha</creatorcontrib><creatorcontrib>JENKINS, Audrey L</creatorcontrib><creatorcontrib>ESTRADA, Andrea</creatorcontrib><creatorcontrib>ZHENWU LIN</creatorcontrib><creatorcontrib>GUIRONG WANG</creatorcontrib><creatorcontrib>DIANGELO, Susan L</creatorcontrib><creatorcontrib>XIAOXUAN GUO</creatorcontrib><creatorcontrib>UMSTEAD, Todd M</creatorcontrib><title>Surfactant protein A and B genetic variants predispose to idiopathic pulmonary fibrosis</title><title>Human genetics</title><addtitle>Hum Genet</addtitle><description>Derangement in pulmonary surfactant or its components and alveolar collapse are common findings in idiopathic pulmonary fibrosis (IPF). Surfactant proteins play important roles in innate host defense and normal function of the lung. 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subjects Adult
Amino acids
Arginine
Biological and medical sciences
Chromosomes
Classical genetics, quantitative genetics, hybrids
Cytokines
Female
Fundamental and applied biological sciences. Psychology
Genes
Genetic aspects
Genetic Predisposition to Disease
Genetic research
Genetics of eukaryotes. Biological and molecular evolution
Human
Humans
Lung diseases
Male
Medical schools
Medical sciences
Medicine
Middle Aged
Mutation
Pathogenesis
Pneumology
Polymorphism, Single Nucleotide
Proteins
Pulmonary fibrosis
Pulmonary Fibrosis - genetics
Pulmonary Fibrosis - physiopathology
Pulmonary Surfactant-Associated Protein A - chemistry
Pulmonary Surfactant-Associated Protein A - genetics
Pulmonary Surfactant-Associated Protein A - metabolism
Pulmonary Surfactant-Associated Protein B - genetics
Pulmonary Surfactant-Associated Protein C - genetics
Pulmonary Surfactant-Associated Protein D - genetics
Respiratory system : syndromes and miscellaneous diseases
Risk factors
Single nucleotide polymorphisms
Smokers
Spectrophotometry
Surface active agents
Surfactants
University colleges
title Surfactant protein A and B genetic variants predispose to idiopathic pulmonary fibrosis
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