Evidence map›Paper›PMID 27245989›Full record

ArticleAutophagy2016

Mechanistic study of TRPM2-Ca(2+)-CAMK2-BECN1 signaling in oxidative stress-induced autophagy inhibition.

Qian Wang, Wenjing Guo, Baixia Hao, Xianli Shi, Yingying Lu, Connie W M Wong, Victor W S Ma, Timothy T C Yip, Joseph S K Au, Quan Hao and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Autophagy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

60 citing papers in PubMed, 1 synthesis or guideline pooled it, 99 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. TLR4 induced TRPM2 mediated neuropathic pain.Frontiers in pharmacology · 2024
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 2 countries.

Qian Wanga Department of Biomedical Sciences , City University of Hong Kong , Hong Kong , China.
Wenjing Guoa Department of Biomedical Sciences , City University of Hong Kong , Hong Kong , China.
Baixia Haoa Department of Biomedical Sciences , City University of Hong Kong , Hong Kong , China.
Xianli Shia Department of Biomedical Sciences , City University of Hong Kong , Hong Kong , China.
Yingying Lua Department of Biomedical Sciences , City University of Hong Kong , Hong Kong , China.
Connie W M Wongb School of Biomedical Sciences, University of Hong Kong , Hong Kong , China.
Victor W S Mac Department of Clinical Oncology , Queen Elizabeth Hospital , Kowloon, Hong Kong , China.
Timothy T C Yipc Department of Clinical Oncology , Queen Elizabeth Hospital , Kowloon, Hong Kong , China.
Joseph S K Auc Department of Clinical Oncology , Queen Elizabeth Hospital , Kowloon, Hong Kong , China.
Quan Haob School of Biomedical Sciences, University of Hong Kong , Hong Kong , China.
King-Ho Cheungb School of Biomedical Sciences, University of Hong Kong , Hong Kong , China.
Wutian Wub School of Biomedical Sciences, University of Hong Kong , Hong Kong , China.
Gui-Rong Lie Xiamen Heart Center, Medical School of Xiamen University , Xiamen , China.
Jianbo Yuea Department of Biomedical Sciences , City University of Hong Kong , Hong Kong , China.
City University of Hong Kong · HKUniversity of Hong Kong · HKQueen Elizabeth Hospital · CNXiamen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reactive oxygen species (ROS) have been commonly accepted as inducers of autophagy, and autophagy in turn is activated to relieve oxidative stress. Yet, whether and how oxidative stress, generated in various human pathologies, regulates autophagy remains unknown. Here, we mechanistically studied the role of TRPM2 (transient receptor potential cation channel subfamily M member 2)-mediated Ca(2+) influx in oxidative stress-mediated autophagy regulation. On the one hand, we demonstrated that oxidative stress triggered TRPM2-dependent Ca(2+) influx to inhibit the induction of early autophagy, which renders cells more susceptible to death. On the other hand, oxidative stress induced autophagy (and not cell death) in the absence of the TRPM2-mediated Ca(2+) influx. Moreover, in response to oxidative stress, TRPM2-mediated Ca(2+) influx activated CAMK2 (calcium/calmodulin dependent protein kinase II) at levels of both phosphorylation and oxidation, and the activated CAMK2 subsequently phosphorylated BECN1/Beclin 1 on Ser295. Ser295 phosphorylation of BECN1 in turn decreased the association between BECN1 and PIK3C3/VPS34, but induced binding between BECN1 and BCL2. Clinically, acetaminophen (APAP) overdose is the most common cause of acute liver failure worldwide. We demonstrated that APAP overdose also activated ROS-TRPM2-CAMK2-BECN1 signaling to suppress autophagy, thereby causing primary hepatocytes to be more vulnerable to death. Inhibiting the TRPM2-Ca(2+)-CAMK2 cascade significantly mitigated APAP-induced liver injury. In summary, our data clearly demonstrate that oxidative stress activates the TRPM2-Ca(2+)-CAMK2 cascade to phosphorylate BECN1 resulting in autophagy inhibition.

Indexed as

Oxidative StressAcetaminophenAnimalsAutophagyBeclin-1CalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium SignalingCell Line, TumorDrug OverdoseHEK293 CellsHeLa CellsHepatocytesHumansMaleMiceAcetaminophenBeclin-1BECN1 protein, humanBecn1 protein, mouseCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2CAMK2A protein, humanCamk2a protein, mouseReactive Oxygen SpeciesSerineTRPM2 protein, humanTRPM2 protein, mouseTRPM Cation ChannelsacetaminophenautophagyBECN1Ca2+CAMK2oxidative stressreactive oxygen speciesTRPM2

Identifiers

PMID27245989
PMCPMC4968236
OpenAlexW2418105255

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.