ArticleCell death & disease2013
Ophiobolin A induces paraptosis-like cell death in human glioblastoma cells by decreasing BKCa channel activity.
Article in Cell death & disease, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers, 1 of them a synthesis that pooled it.
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Who cites it
106 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Global research landscape and hotspots of paraptosis: a multi-database bibliometric analysis with a focused literature review.Frontiers in oncology · 2026Pooled it
- Marine-Derived Fungal Metabolite MHO7 Promotes Breast Cancer Apoptosis as a Hippo Pathway Regulator by Modulating the YAP-TEAD Axis.Marine drugs · 2026Article
- Ophiobolin A Induces an Apoptotic Transcriptional Signature and Modulates Redox Homeostasis in T98G and U118MG Glioblastoma Cells: A Machine Learning Approach.International journal of molecular sciences · 2026Article
- Targeting programmed cell death: a novel therapeutic paradigm for cancer based on mode-of-death classification.Apoptosis : an international journal on programmed cell death · 2026Review
- Potential therapeutic targeting of BKMolecular oncology · 2026Review
- Inflammatory cytokines induce new cancer dependencies.Nature genetics · 2026Article
- 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
- Crosstalk Between Autophagy and Paraptosis: A New Frontier in Cancer Therapy.International journal of molecular sciences · 2026Review
- Ophiobolin A impacts mitochondrial redox biology in an epithelial-mesenchymal transition (EMT)-specific manner.Cancer cell international · 2026Article
- Gasdermin D Cleavage and Cytokine Release, Indicative of Pyroptotic Cell Death, Induced by Ophiobolin A in Breast Cancer Cell Lines.International journal of molecular sciences · 2026Article
- Potent Inducers of Paraptosis through Electronic Tuning of Hemicyanine Electrophiles.Journal of the American Chemical Society · 2025Article
- Transient receptor potential vanilloid channel 2 contributes to multi-modal endoplasmic reticulum and perinuclear space dilations that can also be observed in prion-infected mice.Acta neuropathologica · 2025Article
- 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
- Article
- Heterocyclic Phytochemicals as Anticancer Agents.Current topics in medicinal chemistry · 2025Review
- Rh(II)-Catalyzed Selective C(spOrganic letters · 2024Article
- Exploring paraptosis as a therapeutic approach in cancer treatment.Journal of biomedical science · 2024Review
- Natural products-induced cancer cell paraptosis.Food science & nutrition · 2024Article
- Paraptosis-A Distinct Pathway to Cell Death.International journal of molecular sciences · 2024Review
46 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Glioblastoma multiforme (GBM) is the most lethal and common malignant human brain tumor. The intrinsic resistance of highly invasive GBM cells to radiation- and chemotherapy-induced apoptosis accounts for the generally dismal treatment outcomes. This study investigated ophiobolin A (OP-A), a fungal metabolite from Bipolaris species, for its promising anticancer activity against human GBM cells exhibiting varying degrees of resistance to proapoptotic stimuli. We found that OP-A induced marked changes in the dynamic organization of the F-actin cytoskeleton, and inhibited the proliferation and migration of GBM cells, likely by inhibiting big conductance Ca(2+)-activated K(+) channel (BKCa) channel activity. Moreover, our results indicated that OP-A induced paraptosis-like cell death in GBM cells, which correlated with the vacuolization, possibly brought about by the swelling and fusion of mitochondria and/or the endoplasmic reticulum (ER). In addition, the OP-A-induced cell death did not involve the activation of caspases. We also showed that the expression of BKCa channels colocalized with these two organelles (mitochondria and ER) was affected in this programmed cell death pathway. Thus, this study reveals a novel mechanism of action associated with the anticancer effects of OP-A, which involves the induction of paraptosis through the disruption of internal potassium ion homeostasis. Our findings offer a promising therapeutic strategy to overcome the intrinsic resistance of GBM cells to proapoptotic stimuli.
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