Higher CD14 Levels in Alpha-1 Antitrypsin Deficiency
Author Information
Author(s): Caroline S. Sandström, Natalia Novoradovskaya, Corrado M. Cilio, Eeva Piitulainen, Tomas Sveger, Sabina Janciauskiene
Primary Institution: Lund University
Hypothesis
We hypothesize that AAT may play an important role in modulating sCD14 levels, both as an inhibitor of NE and as a direct regulator of CD14 expression and release.
Conclusion
This study is the first to show higher levels of plasma sCD14 and monocyte mCD14 expression in young, clinically healthy PiZZ AAT subjects.
Supporting Evidence
- Plasma AAT concentrations were higher in PiMM than in PiSZ and PiZZ.
- Plasma sCD14 levels were higher in PiZZ than in PiMM subjects.
- The expression level of mCD14 was higher in monocytes from PiZZ subjects compared to PiMM controls.
Takeaway
People with a specific genetic condition called PiZZ AAT deficiency have higher levels of a protein called CD14 in their blood, which might be linked to inflammation.
Methodology
Plasma levels of AAT and sCD14 were measured in AAT-deficient individuals and age-matched controls, and mCD14 expression was analyzed by FACS.
Potential Biases
Potential selection bias in the recruitment of participants from a specific screening study.
Limitations
The study does not establish a direct causal relationship between CD14 levels and the development of COPD.
Participant Demographics
204 individuals aged 30 years, including 98 males and 106 females.
Statistical Information
P-Value
p = 0.00189
Statistical Significance
p < 0.001
Digital Object Identifier (DOI)
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