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Cited by 1,291

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Reduced stress defense in heme oxygenase 1-deficient cells

Open access
Poss, Kenneth D., Tonegawa, Susumu·1997·Proceedings of the National Academy of Sciences

Abstract

Stressed mammalian cells up-regulate heme oxygenase 1 (Hmox1; EC 1.14.99.3), which catabolizes heme to biliverdin, carbon monoxide, and free iron. To assess the potential role of Hmox1 in cellular antioxidant defense, we analyzed the responses of cells from mice lacking functional Hmox1 to oxidative challenges. Cultured Hmox1−/−embryonic fibroblasts demonstrated high oxygen free radical production when exposed to hemin, hydrogen peroxide, paraquat, or cadmium chloride, and they were hypersensitive to cytotoxicity caused by hemin and hydrogen peroxide. Furthermore, young adult Hmox1−/−mice were vulnerable to mortality and hepatic necrosis when challenged with endotoxin. Our in vitro and in vivo results provide genetic evidence that up-regulation of Hmox1 serves as an adaptive mechanism to protect cells from oxidative damage during stress.

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Metadata

Authors
Poss, K. D., & Tonegawa, S.
Venue
Proceedings of the National Academy of Sciences
Published
1997-09-30
Volume
94
Issue
20
Pages
10925-10930
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2001019228
Cited by
1,291
References
3
FWCI
14.06
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Reduced stress defense in heme oxygenase 1-deficient cells. https://app.cochat.ai/papers/10.1073/pnas.94.20.10925
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Poss, K. D., & Tonegawa, S. (1997). Reduced stress defense in heme oxygenase 1-deficient cells. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.94.20.10925

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

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