Evidence map›Paper›PMID 23129805›Full record

ArticleMolecular and cellular biology2013

Fendiline inhibits K-Ras plasma membrane localization and blocks K-Ras signal transmission.

Dharini van der Hoeven, Kwang-jin Cho, Xiaoping Ma, Sravanthi Chigurupati, Robert G Parton, John F Hancock

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

68 citing papers in PubMed, 112 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. RAS GTPases and Interleaflet Coupling in the Plasma Membrane.Cold Spring Harbor perspectives in biology · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Calcium channel blockers potentiate gemcitabine chemotherapy  in pancreatic cancer.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  15. Targeting Ion Channels for Cancer Treatment: Current Progress and Future Challenges.Reviews of physiology, biochemistry and pharmacology · 2022
    Review
  16. Review
  17. Review
  18. Efficacy of a Three Drug-Based Therapy for Neuroblastoma in Mice.International journal of molecular sciences · 2021
    Article
  19. Article
  20. Review

8 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Dharini van der HoevenDepartment of Integrative Biology and Pharmacology, The University of Texas Medical School at Houston, Houston, Texas, USA.
Kwang-jin Cho
Xiaoping Ma
Sravanthi Chigurupati
Robert G Parton
John F Hancock
University of Queensland · AU

Funding

Training in Biomedical Discovery from Large Scale Data SetsR90DA023418 · NIDA · BAYLOR COLLEGE OF MEDICINE · PI PALZKILL, TIMOTHY · 2006 to 2009
$582k
NIDA NIH HHS R90 DA023418
6 · The paper itself

Abstract

Ras proteins regulate signaling pathways important for cell growth, differentiation, and survival. Oncogenic mutant Ras proteins are commonly expressed in human tumors, with mutations of the K-Ras isoform being most prevalent. To be active, K-Ras must undergo posttranslational processing and associate with the plasma membrane. We therefore devised a high-content screening assay to search for inhibitors of K-Ras plasma membrane association. Using this assay, we identified fendiline, an L-type calcium channel blocker, as a specific inhibitor of K-Ras plasma membrane targeting with no detectable effect on the localization of H- and N-Ras. Other classes of L-type calcium channel blockers did not mislocalize K-Ras, suggesting a mechanism that is unrelated to calcium channel blockade. Fendiline did not inhibit K-Ras posttranslational processing but significantly reduced nanoclustering of K-Ras and redistributed K-Ras from the plasma membrane to the endoplasmic reticulum (ER), Golgi apparatus, endosomes, and cytosol. Fendiline significantly inhibited signaling downstream of constitutively active K-Ras and endogenous K-Ras signaling in cells transformed by oncogenic H-Ras. Consistent with these effects, fendiline blocked the proliferation of pancreatic, colon, lung, and endometrial cancer cell lines expressing oncogenic mutant K-Ras. Taken together, these results suggest that inhibitors of K-Ras plasma membrane localization may have utility as novel K-Ras-specific anticancer therapeutics.

Indexed as

AnimalsBlotting, WesternCalcium Channel BlockersCell LineCell Line, TumorCell MembraneCell ProliferationCell SurvivalDogsEndoplasmic ReticulumEndosomesFendilineGolgi ApparatusHumansMadin Darby Canine Kidney CellsMethylationCalcium Channel BlockersFendilineKRAS protein, humanProtein IsoformsProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

PMID23129805
PMCPMC3554123
OpenAlexW2074039305

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.