Evidence map›Paper›PMID 39125821›Full record

ArticleInternational journal of molecular sciences2024

Chemotherapeutic Potential of Chlorambucil-Platinum(IV) Prodrugs against Cisplatin-Resistant Colorectal Cancer Cells.

Maria George Elias, Angelico D Aputen, Shadma Fatima, Timothy J Mann, Shawan Karan, Meena Mikhael, Paul de Souza, Christopher P Gordon, Kieran F Scott, Janice R Aldrich-Wright

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

10 authors.

Maria George EliasSchool of Science, Western Sydney University, Sydney, NSW 2751, Australia.ORCID 0000-0002-1478-7006
Angelico D AputenSchool of Science, Western Sydney University, Sydney, NSW 2751, Australia.ORCID 0000-0002-5560-9724
Shadma FatimaMedical Oncology, Ingham Institute for Applied Medical Research, Liverpool Hospital, Liverpool, NSW 2170, Australia.
Timothy J MannMedical Oncology, Ingham Institute for Applied Medical Research, Liverpool Hospital, Liverpool, NSW 2170, Australia.
Shawan KaranSchool of Science, Western Sydney University, Sydney, NSW 2751, Australia.ORCID 0000-0001-9775-1932
Meena MikhaelMass Spectrometry Facility, Western Sydney University, Sydney, NSW 2751, Australia.
Paul de SouzaNepean Clinical School, Faculty of Medicine and Health, University of Sydney, Kingswood, NSW 2747, Australia.
Christopher P GordonSchool of Science, Western Sydney University, Sydney, NSW 2751, Australia.ORCID 0000-0001-7583-5609
Kieran F ScottMedical Oncology, Ingham Institute for Applied Medical Research, Liverpool Hospital, Liverpool, NSW 2170, Australia.ORCID 0000-0002-6012-4107
Janice R Aldrich-WrightSchool of Science, Western Sydney University, Sydney, NSW 2751, Australia.ORCID 0000-0002-6943-6908

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlorambucil-platinum(IV) prodrugs exhibit multi-mechanistic chemotherapeutic activity with promising anticancer potential. The platinum(II) precursors of the prodrugs have been previously found to induce changes in the microtubule cytoskeleton, specifically actin and tubulin of HT29 colon cells, while chlorambucil alkylates the DNA. These prodrugs demonstrate significant anticancer activity in 2D cell and 3D spheroid viability assays. A notable production of reactive oxygen species has been observed in HT29 cells 72 h post treatment with prodrugs of this type, while the mitochondrial membrane potential was substantially reduced. The cellular uptake of the chlorambucil-platinum(IV) prodrugs, assessed by ICP-MS, confirmed that active transport was the primary uptake mechanism, with platinum localisation identified primarily in the cytoskeletal fraction. Apoptosis and necrosis were observed at 72 h of treatment as demonstrated by Annexin V-FITC/PI assay using flow cytometry. Immunofluorescence measured via confocal microscopy showed significant changes in actin and tubulin intensity and in architecture. Western blot analysis of intrinsic and extrinsic pathway apoptotic markers, microtubule cytoskeleton markers, cell proliferation markers, as well as autophagy markers were studied post 72 h of treatment. The proteomic profile was also studied with a total of 1859 HT29 proteins quantified by mass spectroscopy, with several dysregulated proteins. Network analysis revealed dysregulation in transcription, MAPK markers, microtubule-associated proteins and mitochondrial transport dysfunction. This study confirms that chlorambucil-platinum(IV) prodrugs are candidates with promising anticancer potential that act as multi-mechanistic chemotherapeutics.

Indexed as

Antineoplastic AgentsApoptosisChlorambucilCisplatinColorectal NeoplasmsDrug Resistance, NeoplasmProdrugsCell Line, TumorCell ProliferationCell SurvivalHT29 CellsHumansMembrane Potential, MitochondrialPlatinumReactive Oxygen SpeciesAntineoplastic AgentsChlorambucilCisplatinPlatinumProdrugsReactive Oxygen Speciesapoptosischlorambucilcytoskeletoncytotoxicityplatinum(II)platinum(IV)PtII56MESSPtII5MESSPtIIPHENSSspheroids

Identifiers

PMID39125821
PMCPMC11312340

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Registered trials

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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.