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

A tumor suppressor function for caspase-2

Open access
Ho, Lien Ha, Taylor, Robyn, Dorstyn, Loretta, Cakouros, Dimitrios, Bouillet, Philippe, Kumar, Sharad·2009·Proceedings of the National Academy of Sciences

Abstract

Apoptosis is mediated by the caspase family of proteases that act as effectors of cell death by cleaving many cellular substrates. Caspase-2 is one of the most evolutionarily conserved caspases, yet its physiological function has remained enigmatic because caspase-2-deficient mice develop normally and are viable. We report here that the caspase-2 −/− mouse embryonic fibroblasts (MEFs) show increased proliferation. When transformed with E1A and Ras oncogenes, caspase-2 −/− MEFs grew significantly faster than caspase-2 +/+ MEFs and formed more aggressive and accelerated tumors in nude mice. To assess whether the loss of caspase-2 predisposes animals to tumor development, we used the mouse Eμ- Myc lymphoma model. Our findings suggest that loss of even a single allele of caspase-2 resulted in accelerated tumorigenesis, and this was further enhanced in caspase-2 −/− mice. The caspase-2 −/− cells showed resistance to apoptosis induced by chemotherapeutic drugs and DNA damage. Furthermore, caspase-2 −/− MEFs had a defective apoptotic response to cell-cycle checkpoint regulation and showed abnormal cycling following γ-irradiation. These data show that loss of caspase-2 results in an increased ability of cells to acquire a transformed phenotype and become malignant, indicating that caspase-2 is a tumor suppressor protein.

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Metadata

Authors
Ho, L. H., Taylor, R., Dorstyn, L., Cakouros, D., Bouillet, P., & Kumar, S.
Venue
Proceedings of the National Academy of Sciences
Published
2009-03-31
Volume
106
Issue
13
Pages
5336-5341
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1993572137
Cited by
167
References
3
FWCI
6.00
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A tumor suppressor function for caspase-2. https://app.cochat.ai/papers/10.1073/pnas.0811928106
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Ho, L. H., Taylor, R., Dorstyn, L., Cakouros, D., Bouillet, P., & Kumar, S. (2009). A tumor suppressor function for caspase-2. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0811928106

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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.