The DOI matches its Crossref record; 78 of the 78 references it cites were found in a registry or an index.
Cholesterol-induced macrophage apoptosis requires ER stress pathways and engagement of the type A scavenger receptor
Open accessAbstract
Macrophage death in advanced atherosclerosis promotes necrosis and plaque destabilization. A likely cause of macrophage death is accumulation of free cholesterol (FC) in the ER, leading to activation of the unfolded protein response (UPR) and C/EBP homologous protein (CHOP)–induced apoptosis. Here we show that p38 MAPK signaling is necessary for CHOP induction and apoptosis. Additionally, two other signaling pathways must cooperate with p38-CHOP to effect apoptosis. One involves the type A scavenger receptor (SRA). As evidence, FC loading by non-SRA mechanisms activates p38 and CHOP, but not apoptosis unless the SRA is engaged. The other pathway involves c-Jun NH2-terminal kinase (JNK)2, which is activated by cholesterol trafficking to the ER, but is independent of CHOP. Thus, FC-induced apoptosis requires cholesterol trafficking to the ER, which triggers p38-CHOP and JNK2, and engagement of the SRA. These findings have important implications for understanding how the UPR, MAPKs, and the SRA might conspire to cause macrophage death, lesional necrosis, and plaque destabilization in advanced atherosclerotic lesions.
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Cholesterol Induces CD8+ T Cell Exhaustion in the Tumor Microenvironment
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Metadata
- Authors
- DeVries-Seimon, T., Li, Y., Yao, P. M., Stone, E., Wang, Y., Davis, R. J., Flavell, R., & Tabas, I.
- Venue
- The Journal of Cell Biology
- Publisher
- Rockefeller University Press
- Published
- 2005-10-03
- Volume
- 171
- Issue
- 1
- Pages
- 61-73
- ISSN
- 0021-9525 (ISSN-L)
- 1540-8140
- OpenAlex
- W2010381644
- Cited by
- 351
- References
- 78
- FWCI
- 7.92
- Type
- journal article
- Language
- en
- Open access
- green
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- DeVries-Seimon, T., Li, Y., Yao, P. M., Stone, E., Wang, Y., Davis, R. J., Flavell, R., & Tabas, I. (2005). Cholesterol-induced macrophage apoptosis requires ER stress pathways and engagement of the type A scavenger receptor. The Journal of Cell Biology. https://doi.org/10.1083/jcb.200502078
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