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Theophylline Restores Histone Deacetylase Activity and Steroid Responses in COPD Macrophages

Open access
Cosio, Borja G., Tsaprouni, Loukia, Ito, Kazuhiro, Jazrawi, Elen, Adcock, Ian M., Barnes, Peter J.·2004·The Journal of Experimental Medicine

Abstract

Chronic obstructive pulmonary disease (COPD) is a common chronic inflammatory disease of the lungs with little or no response to glucocorticoids and a high level of oxidative stress. Histone deacetylase (HDAC) activity is reduced in cells of cigarette smokers, and low concentrations of theophylline can increase HDAC activity. We measured the effect of theophylline on HDAC activity and inflammatory gene expression in alveolar macrophages (AM) from patients with COPD. AM from normal smokers showed a decrease in HDAC activity compared with normal control subjects, and this was further reduced in COPD patients (51% decrease, P < 0.01). COPD AMs also showed increased basal release of IL-8 and TNF-α, which was poorly suppressed by dexamethasone. Theophylline induced a sixfold increase in HDAC activity in COPD AM lysates and significantly enhanced dexamethasone suppression of induced IL-8 release, an effect that was blocked by the HDAC inhibitor trichostatin A. Therefore, theophylline might restore steroid responsiveness in COPD patients.

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Metadata

Authors
Cosio, B. G., Tsaprouni, L., Ito, K., Jazrawi, E., Adcock, I. M., & Barnes, P. J.
Venue
The Journal of Experimental Medicine
Published
2004-08-30
Volume
200
Issue
5
Pages
689-695
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2164147349
Cited by
473
References
24
FWCI
21.60
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Theophylline Restores Histone Deacetylase Activity and Steroid Responses in COPD Macrophages. https://app.cochat.ai/papers/10.1084/jem.20040416
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Cosio, B. G., Tsaprouni, L., Ito, K., Jazrawi, E., Adcock, I. M., & Barnes, P. J. (2004). Theophylline Restores Histone Deacetylase Activity and Steroid Responses in COPD Macrophages. The Journal of Experimental Medicine. https://doi.org/10.1084/jem.20040416

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.