The DOI matches its Crossref record; 64 of the 64 references it cites were found in a registry or an index.
Mechanisms of Statin-mediated Inhibition of Small G-protein Function
Open accessAbstract
3-Hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) have been reported to reduce the risk of Alzheimer disease. We have shown previously that statins inhibit a beta-amyloid (Abeta)-mediated inflammatory response through mechanisms independent of cholesterol reduction. Specifically, statins exert anti-inflammatory actions through their ability to prevent the isoprenylation of members of the Rho family of small G-proteins, resulting in the functional inactivation of these G-proteins. We report that statin treatment of microglia results in perturbation of the cytoskeleton and morphological changes due to alteration in Rho family function. Statins also block Abeta-stimulated phagocytosis through inhibition of Rac action. Paradoxically, the statin-mediated inactivation of G-protein function was associated with increased GTP loading of Rac and RhoA, and this effect was observed in myeloid lineage cells and other cell types. Statin treatment disrupted the interaction of Rac with its negative regulator the Rho guanine nucleotide dissociation inhibitor (RhoGDI), an interaction that is dependent on protein isoprenylation. We propose that lack of negative regulation accounts for the increased GTP loading. Isoprenylation of Rac is also required for efficient interaction with the plasma membrane, and we report that statin treatment dramatically reduces the capacity of Rac to interact with membranes. These results suggest a mechanism by which statins inhibit the actions of Rho GTPases and attenuate Abeta-stimulated inflammation.
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“Thus, statins act as inhibitors of some G-protein actions and Ras or Ras-like signaling, which affect several important bioprocesses [15] .”
From Statins as antifungal agents (2011) · cites this paper as [15]
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“Beyond to the harmful effects on membrane fluidity and the synthesis of important isoprenoids for cell signaling and vital processes (such as cell proliferation and differentiation), and protein prenylation [16] , statins induce apoptosis-like cell death in filamentous fungi [15,30,31] .”
From Statins as antifungal agents (2011) · cites this paper as [15]
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Cites
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Pharmacological Inhibition of Endocytic Pathways: Is It Specific Enough to Be Useful?
Ivanov, A. I. (2008) · Methods in molecular biology · doi:10.1007/978-1-59745-178-9_2 · Cited by 615
Pharmacological Actions of Statins: A Critical Appraisal in the Management of Cancer
Gazzerro, P., Proto, M., Gangemi, G., Malfitano, A. M., Ciaglia, E., Pisanti, S., Santoro, A., Laezza, C., & Bifulco, M. (2011) · Pharmacological Reviews · doi:10.1124/pr.111.004994 · Cited by 465
Statins: a repurposed drug to fight cancer
Jiang, W., Hu, J.-W., He, X.-R., Jin, W.-L., & He, X.-Y. (2021) · Journal of Experimental & Clinical Cancer Research · doi:10.1186/s13046-021-02041-2 · Cited by 417
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Metadata
- Authors
- Cordle, A., Koenigsknecht-Talboo, J., Wilkinson, B., Limpert, A., & Landreth, G.
- Affiliations
- Case Western Reserve University (US)
- Corresponding author
- Landreth, Gary
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2005-10
- Volume
- 280
- Issue
- 40
- Pages
- 34202-34209
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2015034968
- Cited by
- 235
- References
- 64
- Citations by year
- 2026: 4 · 2025: 1 · 2024: 1 · 2023: 6 · 2022: 6 · 2021: 9 · 2020: 3 · 2019: 8 · 2018: 9 · 2017: 8 · 2016: 10 · 2015: 15 · 2014: 9 · 2013: 14 · 2012: 10
- FWCI
- 8.91
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Biological Chemistry (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- National Institute on Aging (AG-20202, R01AG020202, R01AG016740, AG-16740)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sphingolipid Metabolism and Signaling
- Keywords
- statins, Rho GTPases, Rac, RhoA, isoprenylation, amyloid-beta, Alzheimer's disease, microglia, inflammation, RhoGDI, GTP loading, membrane association, cytoskeleton, phagocytosis
- MeSH terms
- Alzheimer Disease, Animals, Cell Line, Cytoskeleton, Guanosine Triphosphate, Humans, Inflammation, Monocytes, Phagocytosis, Protein Prenylation, Microglia, Hydroxymethylglutaryl-CoA Reductase Inhibitors, rho GTP-Binding Proteins, Mice
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