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cDNA cloning and functional activity of a glucocorticoid-regulated inflammatory cyclooxygenase.

Open access
O'Banion, M K, Winn, V D, Young, D A·1992·Proceedings of the National Academy of Sciences

Abstract

The antiinflammatory glucocorticoids are potent inhibitors of cyclooxygenase, a key regulator of prostaglandin synthesis; yet, the mechanism(s) by which this occurs is not fully understood. We have cloned a 4.1-kilobase (kb) cDNA, distinct from the previously cloned cyclooxygenase (2.8 kb), that confers cyclooxygenase activity to transfected cells. The mRNA for this newly discovered cyclooxygenase is unique for its long 3' untranslated region containing many AUUUA repeats. Levels of the 4.1-kb cyclooxygenase mRNA are rapidly increased by serum or interleukin 1 beta in mouse fibroblasts and human monocytes, respectively, and decreased by glucocorticoids, whereas levels of the 2.8-kb cyclooxygenase mRNA do not change. Similar effects are seen in the presence of cycloheximide where the 4.1-kb, but not the 2.8-kb, mRNA is greatly superinduced. Thus, there are both constitutive (2.8 kb) and regulated (4.1 kb) cyclooxygenase species, the latter most likely being a major mediator of inflammation.

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Metadata

Authors
O'Banion, M. K., Winn, V. D., & Young, D. A.
Venue
Proceedings of the National Academy of Sciences
Published
1992-06
Volume
89
Issue
11
Pages
4888-4892
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2085680573
Cited by
821
References
0
FWCI
41.30
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: cDNA cloning and functional activity of a glucocorticoid-regulated inflammatory cyclooxygenase. https://app.cochat.ai/papers/10.1073/pnas.89.11.4888
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O'Banion, M. K., Winn, V. D., & Young, D. A. (1992). cDNA cloning and functional activity of a glucocorticoid-regulated inflammatory cyclooxygenase. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.89.11.4888

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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