Tags

Type your tag names separated by a space and hit enter

Analysis of DEFB1 regulatory SNPs in cystic fibrosis patients from North-Eastern Italy.
Int J Immunogenet. 2010 Jun; 37(3):169-75.IJ

Abstract

Cystic fibrosis (CF) transmembrane regulator protein (CFTR) gene is undoubtedly the main genetic factor involved in the modulation of CF phenotype. However, other factors such as human defensins and the genes encoding for these antimicrobial peptides have been hypothesized as possible modifiers influencing airways infection in CF patients, but their role in the pathogenesis of lung disease is still debated. Since DEFB1 gene encoding for human beta-defensin 1 displays features such as antimicrobial or chemotactic activity playing a role in inflammation, it has been considered as a possible candidate CF modifier gene. We analysed three single nucleotide polymorphisms (SNPs) in the 5'-untranslated region of the DEFB1 gene (namely g-52G>A, g-44C>G and g-20G>A) in a group of 62 CF patients from North Eastern Italy, and in 130 healthy controls, with the aim of verifying the possible association of these functional SNPs with the pulmonary phenotype of CF patients. DEFB1 SNPs have been genotyped by using Taqman allele-specific fluorescent probes and a real-time PCR platform. No significant differences were found for allele, genotype and haplotype frequencies of DEFB1 g-52G>A, g-44C>G and g-20G>A SNPs in CF patients stratified for Pseudomonas aeruginosa infection, as well as in patients with a severe and mild clinical phenotype or in patients stratified for CFTR genotypes. DEFB1 allele, genotype and haplotype frequencies of CF patients globally considered were similar to those of healthy controls. Our findings are discordant with respect to another recent study performed on CF patients coming from Southern Italy, probably due to different ethnicity of the patients.

Authors+Show Affiliations

Genetic Service, IRCCS Burlo Garofolo, Via dell'Istria 65/1, Trieste, Italy. segat@burlo.trieste.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20193032

Citation

Segat, L, et al. "Analysis of DEFB1 Regulatory SNPs in Cystic Fibrosis Patients From North-Eastern Italy." International Journal of Immunogenetics, vol. 37, no. 3, 2010, pp. 169-75.
Segat L, Morgutti M, Athanasakis E, et al. Analysis of DEFB1 regulatory SNPs in cystic fibrosis patients from North-Eastern Italy. Int J Immunogenet. 2010;37(3):169-75.
Segat, L., Morgutti, M., Athanasakis, E., Trevisiol, C., Amaddeo, A., Poli, F., & Crovella, S. (2010). Analysis of DEFB1 regulatory SNPs in cystic fibrosis patients from North-Eastern Italy. International Journal of Immunogenetics, 37(3), 169-75. https://doi.org/10.1111/j.1744-313X.2010.00907.x
Segat L, et al. Analysis of DEFB1 Regulatory SNPs in Cystic Fibrosis Patients From North-Eastern Italy. Int J Immunogenet. 2010;37(3):169-75. PubMed PMID: 20193032.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Analysis of DEFB1 regulatory SNPs in cystic fibrosis patients from North-Eastern Italy. AU - Segat,L, AU - Morgutti,M, AU - Athanasakis,E, AU - Trevisiol,C, AU - Amaddeo,A, AU - Poli,F, AU - Crovella,S, Y1 - 2010/02/24/ PY - 2010/3/3/entrez PY - 2010/3/3/pubmed PY - 2010/10/16/medline SP - 169 EP - 75 JF - International journal of immunogenetics JO - Int. J. Immunogenet. VL - 37 IS - 3 N2 - Cystic fibrosis (CF) transmembrane regulator protein (CFTR) gene is undoubtedly the main genetic factor involved in the modulation of CF phenotype. However, other factors such as human defensins and the genes encoding for these antimicrobial peptides have been hypothesized as possible modifiers influencing airways infection in CF patients, but their role in the pathogenesis of lung disease is still debated. Since DEFB1 gene encoding for human beta-defensin 1 displays features such as antimicrobial or chemotactic activity playing a role in inflammation, it has been considered as a possible candidate CF modifier gene. We analysed three single nucleotide polymorphisms (SNPs) in the 5'-untranslated region of the DEFB1 gene (namely g-52G>A, g-44C>G and g-20G>A) in a group of 62 CF patients from North Eastern Italy, and in 130 healthy controls, with the aim of verifying the possible association of these functional SNPs with the pulmonary phenotype of CF patients. DEFB1 SNPs have been genotyped by using Taqman allele-specific fluorescent probes and a real-time PCR platform. No significant differences were found for allele, genotype and haplotype frequencies of DEFB1 g-52G>A, g-44C>G and g-20G>A SNPs in CF patients stratified for Pseudomonas aeruginosa infection, as well as in patients with a severe and mild clinical phenotype or in patients stratified for CFTR genotypes. DEFB1 allele, genotype and haplotype frequencies of CF patients globally considered were similar to those of healthy controls. Our findings are discordant with respect to another recent study performed on CF patients coming from Southern Italy, probably due to different ethnicity of the patients. SN - 1744-313X UR - https://www.unboundmedicine.com/medline/citation/20193032/Analysis_of_DEFB1_regulatory_SNPs_in_cystic_fibrosis_patients_from_North_Eastern_Italy_ L2 - https://doi.org/10.1111/j.1744-313X.2010.00907.x DB - PRIME DP - Unbound Medicine ER -