ArticleBioorganic & medicinal chemistry letters2024
Ophiobolin A derivatives with enhanced activities under tumor-relevant acidic conditions.
Article in Bioorganic & medicinal chemistry letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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.
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.
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Who cites it
4 citing papers in PubMed.
- From Phytotoxin to Cell-Death Probe: Ophiobolin A and Related Sesterterpenoids in Membrane Stress and Non-Apoptotic Cell Death.Molecules (Basel, Switzerland) · 2026Review
- Gigobolins A-C, New Ophiobolins with Anticancer Activity from the Phytopathogenic FungusJournal of natural products · 2026Article
- Ophiobolin A impacts mitochondrial redox biology in an epithelial-mesenchymal transition (EMT)-specific manner.Cancer cell international · 2026Article
- Derivatization of ophiobolin A and cytotoxicity toward breast and glioblastoma cancer stem cells: Varying the ketone and unsaturated aldehyde moieties.Bioorganic & medicinal chemistry letters · 2025Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Glioblastoma (GBM) is the most common form of malignant primary brain tumor and is one of the most lethal cancers. The difficulty in treating GBM stems from its highly developed mechanisms of drug resistance. Our research team has recently identified the fungal secondary metabolite ophiobolin A (OpA) as an agent with significant activity against drug-resistant GBM cells. However, the OpA's mode of action is likely based on covalent modification of its intracellular target(s) and thus possible off-target reactivity needs to be addressed. This work involves the investigation of an acid-sensitive OpA analogue approach that exploits the elevated acidity of the GBM microenvironment to enhance the selectivity for tumor targeting. This project identified analogues that showed selectivity at killing GBM cells grown in cultures at reduced pH compared to those maintained under normal neutral conditions. These studies are expected to facilitate the development of OpA as an anti-GBM agent by investigating its potential use in an acid-sensitive analogue form with enhanced selectivity for tumor targeting.
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Registered trials
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