The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Activity of LKB1 and AMPK-related kinases in skeletal muscle: effects of contraction, phenformin, and AICAR
Abstract
Activation of AMP-activated protein kinase (AMPK) by exercise and metformin is beneficial for the treatment of type 2 diabetes. We recently found that, in cultured cells, the LKB1 tumor suppressor protein kinase activates AMPK in response to the metformin analog phenformin and the AMP mimetic drug 5-aminoimidazole-4-carboxamide-1-beta-D-ribofuranoside (AICAR). We have also reported that LKB1 activates 11 other AMPK-related kinases. The activity of LKB1 or the AMPK-related kinases has not previously been studied in a tissue with physiological relevance to diabetes. In this study, we have investigated whether contraction, phenformin, and AICAR influence LKB1 and AMPK-related kinase activity in rat skeletal muscle. Contraction in situ, induced via sciatic nerve stimulation, significantly increased AMPKalpha2 activity and phosphorylation in multiple muscle fiber types without affecting LKB1 activity. Treatment of isolated skeletal muscle with phenformin or AICAR stimulated the phosphorylation and activation of AMPKalpha1 and AMPKalpha2 without altering LKB1 activity. Contraction, phenformin, or AICAR did not significantly increase activities or expression of the AMPK-related kinases QSK, QIK, MARK2/3, and MARK4 in skeletal muscle. The results of this study suggest that muscle contraction, phenformin, or AICAR activates AMPK by a mechanism that does not involve direct activation of LKB1. They also suggest that the effects of excercise, phenformin, and AICAR on metabolic processes in muscle may be mediated through activation of AMPK rather than activation of LKB1 or the AMPK-related kinases.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“When the AMP:ATP ratio increases the probability of AMPK being in the AMP bound state increases.This allosterically activates AMPK [13] and makes AMPK a more efficient substrate for its upstream kinase LKB1, phosphorylation by which leads to full activation of the kinase [14].”
From New strategies in sport nutrition to increase exercise performance (2016) · cites this paper as [14]
Citations
Cites
Role of AMP-Activated Protein Kinase in Mechanism of Metformin Action
Zhou, G., Myers, R., Li, Y., Chen, Y., Shen, X., Fenyk-Melody, J., Wu, M., Ventre, J., Doebber, T., Fujii, N., et al. (2001) · Journal of Clinical Investigation · doi:10.1172/jci13505 · Cited by 5,652
Shaw, R. J., Kosmatka, M., Bardeesy, N., Hurley, R. L., Witters, L. A., DePinho, R. A., & Cantley, L. C. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0308061100 · Cited by 1,797
Hawley, S. A., Boudeau, J., Reid, J. L., Mustard, K. J., Udd, L., Mäkelä, T. P., Alessi, D. R., & Hardie, D. G. (2003) · Journal of Biology · doi:10.1186/1475-4924-2-28 · Cited by 1,694
LKB1 is the upstream kinase in the AMP-activated protein kinase cascade
Woods, A., Johnstone, S. R., Dickerson, K., Leiper, F. C., Fryer, L. G. D., Neumann, D., Schlattner, U., Wallimann, T., Carlson, M., & Carling, D. (2003) · Current Biology · doi:10.1016/j.cub.2003.10.031 · Cited by 1,650
LKB1 is a master kinase that activates 13 kinases of the AMPK subfamily, including MARK/PAR‐1
Lizcano, J. M., Göransson, O., Toth, R., Deak, M., Morrice, N. A., Boudeau, J., Hawley, S. A., Udd, L., Mäkelä, T. P., Hardie, D. G., et al. (2004) · The EMBO Journal · doi:10.1038/sj.emboj.7600110 · Cited by 1,381
Corton, J. M., Gillespie, J. G., Hawley, S. A., & Hardie, D. G. (1995) · European Journal of Biochemistry · doi:10.1111/j.1432-1033.1995.tb20498.x · Cited by 1,232
The AMP-activated protein kinase cascade – a unifying system for energy control
Carling, D. (2003) · Trends in Biochemical Sciences · doi:10.1016/j.tibs.2003.11.005 · Cited by 1,133
Fryer, L. G. D., Patel, A. P., & Carling, D. (2002) · Journal of Biological Chemistry · doi:10.1074/jbc.m202489200 · Cited by 1,035
AMP-activated protein kinase, a metabolic master switch: possible roles in Type 2 diabetes
Winder, W. W., & Hardie, D. G. (1999) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.1999.277.1.e1 · Cited by 1,000
Mu, J., Brozinick, J. T., Valladares, O., Bucan, M., & Birnbaum, M. J. (2001) · Molecular Cell · doi:10.1016/s1097-2765(01)00251-9 · Cited by 924
Cited by
Sorted by citations
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
AMP-activated/SNF1 protein kinases: conserved guardians of cellular energy
Hardie, D. G. (2007) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2249 · Cited by 2,261
AMP-activated protein kinase: an energy sensor that regulates all aspects of cell function
Hardie, D. G. (2011) · Genes & Development · doi:10.1101/gad.17420111 · Cited by 1,638
Exercise, GLUT4, and skeletal muscle glucose uptake
Richter, E. A., & Hargreaves, M. (2013) · Physiological Reviews · doi:10.1152/physrev.00038.2012 · Cited by 1,407
Foretz, M., Hébrard, S., Leclerc, J., Zarrinpashneh, E., Soty, M., Mithieux, G., Sakamoto, K., Andreelli, F., & Viollet, B. (2010) · Journal of Clinical Investigation · doi:10.1172/jci40671 · Cited by 1,181
Self-citation
Metadata
- Authors
- Sakamoto, K., Göransson, O., Hardie, D. G., & Alessi, D. R.
- Affiliations
- University of Dundee (GB)
- Venue
- American Journal of Physiology-Endocrinology and Metabolism
- Publisher
- American Physiological Society
- Published
- 2004-08
- Volume
- 287
- Issue
- 2
- Pages
- E310-E317
- ISSN
- 0193-1849 (ISSN-L)
- 1522-1555
- OpenAlex
- W2050427373
- Cited by
- 299
- References
- 32
- Citations by year
- 2025: 6 · 2024: 2 · 2023: 2 · 2022: 6 · 2021: 6 · 2020: 7 · 2019: 7 · 2018: 8 · 2017: 11 · 2016: 13 · 2015: 13 · 2014: 24 · 2013: 14 · 2012: 20
- FWCI
- 10.06
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Physiology-Endocrinology and Metabolism (publishedVersion)
- PubMed (publishedVersion)
- Discovery Research Portal (University of Dundee) (publishedVersion)
- Lund University Publications (Lund University) (submittedVersion)
- Funders
- University of Bristol
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
- Health Sciences › Medicine › Physiology (medical) › Adipose Tissue and Metabolism
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
- Keywords
- LKB1, AMPK, AMPK-related kinases, skeletal muscle, muscle contraction, phenformin, AICAR, AMPKα1, AMPKα2, MARK kinases, physical activity, type 2 diabetes, muscle fiber type, sciatic nerve stimulation
- MeSH terms
- AMP-Activated Protein Kinase Kinases, Aminoimidazole Carboxamide, Animals, Cells, Cultured, Enzyme Activation, Fibroblasts, HeLa Cells, Humans, Hypoglycemic Agents, Isoenzymes, Male, Multienzyme Complexes, Muscle Contraction, Organ Culture Techniques, Phenformin, Physical Conditioning, Animal, Ribonucleotides, Rats, Wistar, Protein Serine-Threonine Kinases, Mice, Knockout, Muscle, Skeletal, Mice, Rats, AMP-Activated Protein Kinases
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
