Bradley Winston Richmond, M.D.

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Bradley Winston Richmond, M.D.

Research Project:
Infections Could Play Role in Smokers’ Development of COPD

Grant Awarded:

Senior Research Training Fellowship

Research Topic:

basic biologic mechanisms

Research Disease:

COPD

While most patients with chronic obstructive pulmonary disease (COPD) are current or former smokers, only some smokers develop severe COPD. Differences in frequency or response to recurrent infection may explain why only some smokers develop COPD. Our preliminary data shows that the small airways of COPD patients frequently lack secretory immunoglobulin A (SIgA), a protein whose main role is to prevent bacteria from penetrating into the lung. Using mice engineered to lack SIgA, we will examine whether the lack of this protein results in COPD-like lung injury after exposure to bacteria, and whether restoring SIgA in the small airways will prevent these changes from taking place.

Page last updated: January 17, 2023

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