Evidence map›Paper›PMID 35670018›Full record

ArticleJournal of cellular and molecular medicine2022

STAT3 suppresses the AMPKα/ULK1-dependent induction of autophagy in glioblastoma cells.

Sujoy Bhattacharya, Jinggang Yin, Chuanhe Yang, Yinan Wang, Michelle Sims, Lawrence M Pfeffer, Edward Chaum

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. The STAT3-Regulated Autophagy Pathway in Glioblastoma.Pharmaceuticals (Basel, Switzerland) · 2023
    Review
  9. Review
  10. Article
  11. Article
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

7 authors at 2 institutions in 1 country.

Sujoy BhattacharyaDepartment of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA.ORCID 0000-0003-4443-9691
Jinggang YinDepartment of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Chuanhe YangDepartment of Pathology and Laboratory Medicine, The Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Yinan WangDepartment of Pathology and Laboratory Medicine, The Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Michelle SimsDepartment of Pathology and Laboratory Medicine, The Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
Lawrence M PfefferDepartment of Pathology and Laboratory Medicine, The Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA.ORCID 0000-0003-2809-1234
Edward ChaumDepartment of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA.ORCID 0000-0003-3542-8376
University of Tennessee Health Science Center · USVanderbilt University Medical Center · US

Funding

Potocsnak FamilyResearch to Prevent BlindnessShulsky FoundationThe Margy Ann and J Donald M Gass Chair EndowmentThe Muirhead Chair Endowment and UTHSC
6 · The paper itself

Abstract

Despite advances in molecular characterization, glioblastoma (GBM) remains the most common and lethal brain tumour with high mortality rates in both paediatric and adult patients. The signal transducer and activator of transcription 3 (STAT3) is an important oncogenic driver of GBM. Although STAT3 reportedly plays a role in autophagy of some cells, its role in cancer cell autophagy remains unclear. In this study, we found Serine-727 and Tyrosine-705 phosphorylation of STAT3 was constitutive in GBM cell lines. Tyrosine phosphorylation of STAT3 in GBM cells suppresses autophagy, whereas knockout (KO) of STAT3 increases ULK1 gene expression, increases TSC2-AMPKα-ULK1 signalling, and increases lysosomal Cathepsin D processing, leading to the stimulation of autophagy. Rescue of STAT3-KO cells by the enforced expression of wild-type (WT) STAT3 reverses these pathways and inhibits autophagy. Conversely, expression of Y705F- and S727A-STAT3 phosphorylation deficient mutants in STAT3-KO cells did not suppress autophagy. Inhibition of ULK1 activity (by treatment with MRT68921) or its expression (by siRNA knockdown) in STAT3-KO cells inhibits autophagy and sensitizes cells to apoptosis. Taken together, our findings suggest that serine and tyrosine phosphorylation of STAT3 play critical roles in STAT3-dependent autophagy in GBM, and thus are potential targets to treat GBM.

Indexed as

AMP-Activated Protein KinasesAutophagy-Related Protein-1 HomologGlioblastomaIntracellular Signaling Peptides and ProteinsSTAT3 Transcription FactorAutophagyHumansPhosphorylationSerineTyrosineAMP-Activated Protein KinasesAutophagy-Related Protein-1 HomologIntracellular Signaling Peptides and ProteinsSerineSTAT3 protein, humanSTAT3 Transcription FactorTyrosineULK1 protein, humanapoptosisAtg14Beclin1Caspase-3cathepsin DLC3-I/LC3-II; Prom1/CD133MRT68921RAD001 (Everolimus)Sequestome/p62; autophagy flux; mTORC1/2tuberin/TSC2

Identifiers

PMID35670018
PMCPMC9279602
OpenAlexW4281977510

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.