Evidence map›Paper›PMID 34094073›Full record

ArticleChemical science2020

Ligand-centred redox activation of inert organoiridium anticancer catalysts.

Wen-Ying Zhang, Samya Banerjee, George M Hughes, Hannah E Bridgewater, Ji-Inn Song, Ben G Breeze, Guy J Clarkson, James P C Coverdale, Carlos Sanchez-Cano, Fortuna Ponte and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.8field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 61 citations in OpenAlex.

  1. A Catalytic Osmium Redox Couple Collapses Cancer Redox Balance.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Selective Iridium-Catalyzed Reductive Amination Inside Living Cells.Journal of the American Chemical Society · 2025
    Article
  7. Article
  8. Taming glutathione potentiates metallodrug action.Current opinion in chemical biology · 2022
    Review
  9. Anticancer Water-Soluble Organoruthenium Complexes: Synthesis and Preclinical Evaluation.Chembiochem : a European journal of chemical biology · 2022
    Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. 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

12 authors at 2 institutions in 3 countries.

Wen-Ying ZhangDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0002-0880-4447
Samya BanerjeeDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0003-4393-4447
George M HughesDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0001-7850-045X
Hannah E BridgewaterDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0003-1769-9025
Ji-Inn SongDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0002-0180-6423
Ben G BreezeSpectroscopy Research Technology Platform, University of Warwick Coventry CV4 7AL UK.ORCID https://orcid.org/0000-0002-7979-9753
Guy J ClarksonDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0003-3076-3191
James P C CoverdaleDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0002-7779-6620
Carlos Sanchez-CanoDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0002-9522-0019
Fortuna PonteDepartment of Chemistry and Chemical Technologies, University of Calabria via Pietro Bucci 87036 Arcavacata di Rende Cs Italy.ORCID https://orcid.org/0000-0002-4431-9510
Emilia SiciliaDepartment of Chemistry and Chemical Technologies, University of Calabria via Pietro Bucci 87036 Arcavacata di Rende Cs Italy.ORCID https://orcid.org/0000-0001-5952-9927
Peter J SadlerDepartment of Chemistry, University of Warwick Coventry CV4 7AL UK p.j.sadler@warwick.ac.uk.ORCID https://orcid.org/0000-0001-9160-1941
University of Warwick · GBUniversity of Calabria · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Organometallic complexes with novel activation mechanisms are attractive anticancer drug candidates. Here, we show that half-sandwich iodido cyclopentadienyl iridium(iii) azopyridine complexes exhibit potent antiproliferative activity towards cancer cells, in most cases more potent than cisplatin. Despite their inertness towards aquation, these iodido complexes can undergo redox activation by attack of the abundant intracellular tripeptide glutathione (GSH) on the chelated azopyridine ligand to generate paramagnetic intermediates, and hydroxyl radicals, together with thiolate-bridged dinuclear iridium complexes, and liberate reduced hydrazopyridine ligand. DFT calculations provided insight into the mechanism of this activation. GS

Identifiers

PMID34094073
PMCPMC8159363
OpenAlexW3024668894

What OpenQuestion holds

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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.