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Predicting Lung Function Using Biomarkers in Alpha-1 Antitrypsin Deficiency.

Daniella A Spittle1, Alison Mansfield1, Anita Pye1

  • 1Institute of Applied Health Research, University of Birmingham, Birmingham B15 2TT, UK.

Biomedicines
|July 29, 2023
PubMed
Summary
This summary is machine-generated.

Blood biomarkers like CC16 may predict lung function decline in alpha-1 antitrypsin deficiency (AATD) with COPD. This finding offers potential for monitoring disease progression in AATD patients.

Keywords:
alpha-1 antitrypsin deficiencybiomarkerschronic obstructive pulmonary diseaselung function

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Area of Science:

  • Pulmonary Medicine
  • Biomarker Discovery
  • Genetics

Background:

  • Alpha-1 antitrypsin deficiency (AATD) causes heterogeneous lung disease, including COPD.
  • Blood biomarkers are promising for monitoring disease severity and progression.
  • Previous studies show biomarker panels predict outcomes in non-AATD COPD.

Purpose of the Study:

  • To investigate serum biomarker levels in AATD patients with and without COPD.
  • To assess associations between biomarkers and lung function (FEV1, TLco) in AATD.
  • To determine if biomarkers predict lung function changes in AATD-associated COPD.

Main Methods:

  • Measured seven serum biomarkers in 200 AATD patients.
  • Compared biomarker levels between AATD patients with and without COPD (n=111 PiZZ genotype).
  • Used Pearson correlation and ANOVA to analyze biomarker associations with lung function and its changes.

Main Results:

  • CRP and CCL18 levels were higher in AATD COPD patients.
  • Biomarkers did not predict baseline lung function.
  • CC16 was significantly associated with absolute change in TLco (p=0.018).
  • Biomarkers improved TLco prediction models (R² 0.13 vs 0.02, p=0.028).

Conclusions:

  • CC16 shows potential as a biomarker for predicting emphysema progression in AATD COPD.
  • Further research with proteomics and longitudinal data is warranted for novel biomarker identification.