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Degradation of AMPK by a Cancer-Specific Ubiquitin Ligase

Overview of attention for article published in Cell, February 2015
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (93rd percentile)
  • Average Attention Score compared to outputs of the same age and source

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2 blogs
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2 X users
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4 patents
weibo
5 weibo users
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5 Facebook pages

Citations

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294 Dimensions

Readers on

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323 Mendeley
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Title
Degradation of AMPK by a Cancer-Specific Ubiquitin Ligase
Published in
Cell, February 2015
DOI 10.1016/j.cell.2015.01.034
Pubmed ID
Authors

Carlos T. Pineda, Saumya Ramanathan, Klementina Fon Tacer, Jenny L. Weon, Malia B. Potts, Yi-Hung Ou, Michael A. White, Patrick Ryan Potts

Abstract

AMP-activated protein kinase (AMPK) is a master sensor and regulator of cellular energy status. Upon metabolic stress, AMPK suppresses anabolic and promotes catabolic processes to regain energy homeostasis. Cancer cells can occasionally suppress the growth-restrictive AMPK pathway by mutation of an upstream regulatory kinase. Here, we describe a widespread mechanism to suppress AMPK through its ubiquitination and degradation by the cancer-specific MAGE-A3/6-TRIM28 ubiquitin ligase. MAGE-A3 and MAGE-A6 are highly similar proteins normally expressed only in the male germline but frequently re-activated in human cancers. MAGE-A3/6 are necessary for cancer cell viability and are sufficient to drive tumorigenic properties of non-cancerous cells. Screening for targets of MAGE-A3/6-TRIM28 revealed that it ubiquitinates and degrades AMPKα1. This leads to inhibition of autophagy, activation of mTOR signaling, and hypersensitization to AMPK agonists, such as metformin. These findings elucidate a germline mechanism commonly hijacked in cancer to suppress AMPK.

X Demographics

X Demographics

The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 323 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 4 1%
Canada 2 <1%
United Kingdom 1 <1%
Germany 1 <1%
Japan 1 <1%
Sweden 1 <1%
Unknown 313 97%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 67 21%
Researcher 41 13%
Student > Master 33 10%
Student > Bachelor 32 10%
Professor > Associate Professor 19 6%
Other 56 17%
Unknown 75 23%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 103 32%
Agricultural and Biological Sciences 74 23%
Medicine and Dentistry 36 11%
Chemistry 6 2%
Immunology and Microbiology 6 2%
Other 12 4%
Unknown 86 27%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 22. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 02 April 2024.
All research outputs
#1,717,327
of 25,837,817 outputs
Outputs from Cell
#5,138
of 17,278 outputs
Outputs of similar age
#23,267
of 365,926 outputs
Outputs of similar age from Cell
#88
of 144 outputs
Altmetric has tracked 25,837,817 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 93rd percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 17,278 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 59.7. This one has gotten more attention than average, scoring higher than 70% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 365,926 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 93% of its contemporaries.
We're also able to compare this research output to 144 others from the same source and published within six weeks on either side of this one. This one is in the 38th percentile – i.e., 38% of its contemporaries scored the same or lower than it.