What question did this study set out to answer?

To evaluate whether cigarette smoke extract and its volatile components inhibit human lung fibroblast proliferation and migration, contributing to the development of pulmonary emphysema.

May 1, 1995American Journal of Respiratory and Critical Care Medicine

Cigarette Smoke Inhibits Lung Fibroblast Proliferation and Chemotaxis

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Authors

YNYoichi NakamuraKanazawa University DRDebra J. RombergerNebraska Medical Center LTLarry G. TateNorth Carolina State University

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Implication

In vitro study reveals that cigarette smoke extract inhibits proliferation and chemotaxis in human lung fibroblasts, suggesting a mechanism for impaired tissue repair in pulmonary emphysema.

Key Points

To evaluate whether cigarette smoke extract and its volatile components inhibit human lung fibroblast proliferation and migration, contributing to the development of pulmonary emphysema.
Treated cultured human lung fibroblasts in vitro with cigarette smoke extract (CSE) at noncytotoxic concentrations to measure proliferation and chemotaxis.
Tested CSE depleted of volatile components, as well as isolated volatile constituents (acrolein and acetaldehyde), to identify specific drivers of inhibition.
Noncytotoxic concentrations of CSE significantly inhibited both human lung fibroblast proliferation and migration.
Acrolein at micromolar concentrations and acetaldehyde at millimolar concentrations significantly inhibited fibroblast proliferation, and removing volatile components reduced the anti-proliferative effect of CSE.
Removal of volatile components did not eliminate CSE-mediated inhibition of fibroblast migration, although isolated acrolein and acetaldehyde each independently inhibited chemotaxis.

Cite This Study

Nakamura et al. (1995) studied this question.

synapsesocial.com/papers/6a72c2f38031ec7bb1dd7add https://doi.org/10.1164/ajrccm.151.5.7735606

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Implication

In vitro study reveals that cigarette smoke extract inhibits proliferation and chemotaxis in human lung fibroblasts, suggesting a mechanism for impaired tissue repair in pulmonary emphysema.

Cigarette Smoke Inhibits Lung Fibroblast Proliferation and Chemotaxis

Discussion

Member takes

Implication

Key Points

Cite This Study

Cigarette Smoke Inhibits Lung Fibroblast Proliferation and Chemotaxis

Discussion

Member takes

Implication

Key Points

Cite This Study

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