The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
The AMP-activated protein kinase pathway – new players upstream and downstream
Abstract
The AMP-activated protein kinase (AMPK) cascade is a sensor of cellular energy status. Whenever the cellular ATP:ADP ratio falls, owing to a stress that inhibits ATP production or increases ATP consumption, this is amplified by adenylate kinase into a much larger increase in the AMP:ATP ratio. AMP activates the system by binding to two tandem domains on the γ subunits of AMPK, and this is antagonized by high concentrations of ATP. AMP binding causes activation by a sensitive mechanism involving phosphorylation of AMPK by the tumour suppressor LKB1. Once activated, AMPK switches on catabolic pathways that generate ATP while switching off ATP-consuming processes. As well as acting at the level of the individual cell, the system also regulates food intake and energy expenditure at the whole body level, in particular by mediating the effects of hormones and cytokines such as leptin, adiponectin and ghrelin. A particularly interesting downstream target recently identified is TSC2 (tuberin). The LKB1→AMPK→TSC2 pathway negatively regulates the target of rapamycin (TOR), and this appears to be responsible for limiting protein synthesis and cell growth, and protecting against apoptosis, during cellular stresses such as glucose starvation.
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Cites
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BackgroundThiazolidinediones, Like Metformin, Inhibit Respiratory Complex I
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Self-citation
Cited by
Kahn, B. B., Alquier, T., Carling, D., & Hardie, D. G. (2005) · Cell Metabolism · doi:10.1016/j.cmet.2004.12.003 · Cited by 2,799
Self-citationPeng, L., Li, Z.-R., Green, R. S., Holzmanr, I. R., & Lin, J. (2009) · The Journal of Nutrition · doi:10.3945/jn.109.104638 · Cited by 2,130
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Self-citationAMPK regulates the circadian clock by cryptochrome phosphorylation and degradation
Lamia, K. A., Sachdeva, U. M., DiTacchio, L., Williams, E. C., Alvarez, J. G., Egan, D. F., Vasquez, D. S., Juguilon, H., Panda, S., Shaw, R. J., et al. (2009) · Science · doi:10.1126/science.1172156 · Cited by 958
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Metadata
- Authors
- Hardie, D. G.
- Venue
- Journal of Cell Science
- Publisher
- The Company of Biologists
- Published
- 2004-11-01
- Volume
- 117
- Issue
- 23
- Pages
- 5479-5487
- ISSN
- 0021-9533 (ISSN-L)
- 1477-9137
- OpenAlex
- W2135424721
- Cited by
- 1,143
- References
- 25
- FWCI
- 21.87
- Type
- journal article
- Language
- en
- Open access
- closed
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