When eosinophils from asthma patients are exposed to allergens, they produce about 1.58 times more TGF-β1 protein compared to before exposure, which may contribute to inflammation.

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Evidence from Studies

Supporting (1)

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In Vivo Allergen-Activated Eosinophils Promote Collagen I and Fibronectin Gene Expression in Airway Smooth Muscle Cells via TGF-β1 Signaling Pathway in Asthma

Cross-Sectional Study

Human

2020 Mar 6

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No contradicting evidence found

Source Study

In Vivo Allergen-Activated Eosinophils Promote Collagen I and Fibronectin Gene Expression in Airway Smooth Muscle Cells via TGF-β1 Signaling Pathway in Asthma

Score: 38

DOI: 10.3390/ijms21051837

Similar Assertions

Eosinophils from asthma patients already produce more TGF-β1 protein than healthy people even before allergen exposure.

94%

When airway muscle cells are grown with allergen-activated asthma eosinophils, the fluid around them has about twice as much TGF-β1 protein as when grown with healthy eosinophils.

84%

When airway muscle cells are grown with allergen-activated asthma eosinophils, the fluid around them has about 50% more TGF-β1 protein than when grown with non-activated eosinophils.

80%

Airway muscle cells grown with allergen-activated asthma eosinophils produce over 5 times more collagen I gene activity than when grown with healthy eosinophils.

77%

In asthma patients, the number of eosinophils in blood increases from 0.34 to 0.52 billion per liter within 24 hours after allergen exposure.

75%