Related Experiment Videos
MBL2 polymorphisms screening in a regional Italian CF Center
Chiara Trevisiol1, Michele Boniotto, Luisella Giglio
1Paediatrics Unit, Department of Reproductive and Developmental Sciences, Trieste University, Italy.
Summary
Mannan-binding lectin (MBL) variants were linked to worse outcomes in cystic fibrosis (CF) patients. Individuals with MBL2 variants showed reduced lung function and earlier Pseudomonas aeruginosa infections.
Area of Science:
- Immunogenetics
- Pulmonology
- Infectious Diseases
Background:
- Cystic Fibrosis (CF) is a genetic disorder affecting multiple organs, primarily the lungs.
- Pulmonary exacerbations, often due to bacterial infections like Pseudomonas aeruginosa, significantly impact CF patient outcomes.
- Mannan-binding lectin (MBL) plays a crucial role in the innate immune system, recognizing pathogen-associated molecular patterns.
Purpose of the Study:
- To investigate the association between MBL2 gene variants and clinical outcomes in a cohort of cystic fibrosis patients.
- To determine if specific MBL2 genotypes correlate with lung function and susceptibility to Pseudomonas aeruginosa colonization.
Main Methods:
- Genotyping of the MBL2 gene was performed on DNA samples from 47 CF patients.
- Clinical data, including Forced Expiratory Volume in 1 second (FEV1) and age of Pseudomonas aeruginosa colonization onset, were collected and analyzed.
Main Results:
- CF patients carrying at least one MBL2 variant exhibited significantly lower FEV1 values.
- A significantly earlier age of onset for Pseudomonas aeruginosa colonization was observed in CF patients with MBL2 variants.
Conclusions:
- MBL2 allelic variants are associated with a more severe clinical phenotype in cystic fibrosis patients.
- These findings suggest that MBL2 genotype may influence disease progression and infection susceptibility in CF.