Evidence map›Paper›PMID 35320362›Full record

ArticleMolecular cancer research : MCR2022

BRAFV600E-Driven Lung Adenocarcinoma Requires Copper to Sustain Autophagic Signaling and Processing.

Tiffany Tsang, Xingxing Gu, Caroline I Davis, Jessica M Posimo, Zoey A Miller, Donita C Brady

Erratum issuedAbstract read
In one paragraph

Article in Molecular cancer research : MCR, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Harnessing cuproptosis: a new avenue for targeted cancer therapies.Apoptosis : an international journal on programmed cell death · 2025
    Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. IAPP blocks anti-breast cancer function of CD8Frontiers in immunology · 2024
    Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Tiffany Tsang *Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Xingxing Gu *Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.ORCID 0000-0001-8202-189X
Caroline I DavisDepartment of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Jessica M PosimoDepartment of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Zoey A MillerDepartment of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
Donita C BradyDepartment of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.ORCID 0000-0002-2786-2802

Funding

Translational Research Support CoreP30ES013508 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI Trevor M Penning · 2006 to 2026
$35.3M
Molecular and Cellular Mechanisms of Copper-Dependent Nutrient Signaling and MetabolismR35GM124749 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI Donita C Brady · 2017 to 2026
$4.6M
Investigating paradoxical YAP activation as an emergent limitation to Cu chelation therapy in BRAF V600E-driven melanomaF31CA243294 · NCI · UNIVERSITY OF PENNSYLVANIA · PI TSANG, TIFFANY · 2019 to 2020
$67k
NCI NIH HHS F31 CA243294NIEHS NIH HHS P30 ES013508NIGMS NIH HHS R35 GM124749
6 · The paper itself

Abstract

The transition metal copper (Cu) is an essential micronutrient required for development and proliferation, but the molecular mechanisms by which Cu contributes to these processes is not fully understood. Although traditionally studied as a static cofactor critical for the function of Cu-dependent enzymes, an expanding role for Cu is emerging to include its novel function as a dynamic mediator of signaling processes through the direct control of protein kinase activity. We now appreciate that Cu directly binds to and influences MEK1/2 and ULK1/2 kinase activity, and show here that reductions in MAPK and autophagic signaling are associated with dampened growth and survival of oncogenic BRAF-driven lung adenocarcinoma cells upon loss of Ctr1. Efficient autophagy, clonogenic survival, and tumorigenesis of BRAF-mutant cells required ULK1 Cu-binding. Although treatment with canonical MAPK inhibitors resulted in the upregulation of protective autophagy, mechanistically, the Cu chelator tetrathiomolybdate (TTM) was sufficient to target both autophagic and MAPK signaling as a means to blunt BRAF-driven tumorigenic properties. These findings support leveraging Cu chelation with TTM as an alternative therapeutic strategy to impair autophagy and MAPK signaling. As traditional MAPK monotherapies initiate autophagy signaling and promote cancer cell survival. IMPLICATIONS: We establish that copper chelation therapy inhibits both autophagy and MAPK signaling in BRAFV600E-driven lung adenocarcinoma, thus overcoming the upregulation of protective autophagy elicited by canonical MAPK pathway inhibitors.

Indexed as

Adenocarcinoma of LungLung NeoplasmsAutophagyCell Line, TumorChelating AgentsCopperHumansProtein Kinase InhibitorsProto-Oncogene Proteins B-rafChelating AgentsCopperProtein Kinase InhibitorsProto-Oncogene Proteins B-raf

Identifiers

PMID35320362
PMCPMC9262833

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.