ArticleCell death & disease2025
Pharmacological targeting of the mitochondrial phosphatase PTPMT1 sensitizes hepatocellular carcinoma to ferroptosis.
Article in Cell death & disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Experimental Detection Methods and Clinical Translational Challenges of Disulfidptosis in Cancer.Cells · 2026Review
- Berberine suppresses colorectal cancer progression by inducing ferroptosis-mediated energy metabolism disorders.Journal of advanced research · 2026Article
- Next-Generation Redox Mediators: Itaconate, Nitro-Fatty Acids, Reactive Sulfur Species and Succinate as Emerging Switches in Predictive Redox Medicine.Antioxidants (Basel, Switzerland) · 2026Review
- Alexidine, identified as a Z-DNA inducer by the NanoZ screening platform, acts as a transcriptional regulator.Nucleic acids research · 2026Article
- Characterization of Differential GPX4 Essentiality Between Intrahepatic and Extrahepatic Cholangiocarcinoma via Leveraging of a Large-Scale Functional Genomic Screen.International journal of molecular sciences · 2025Article
- Mitochondrial dysfunction in mesenchymal stem cells impairs osteogenesis in radiation-induced bone injury via CaCell death & disease · 2025Article
- Curcumin induces ferroptosis in hepatocellular carcinoma by regulating PERK/Nrf2/HO-1 signaling pathway.Translational cancer research · 2025Article
- Inhalable targeted CD8 + T cell nanoparticles loaded ferroptosis inhibitor ferrostatin-1 alleviate acute lung injury.Journal of nanobiotechnology · 2025Article
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Authors and funding
18 authors.
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Abstract
Protein tyrosine phosphatase mitochondrial 1 (PTPMT1), is a member of the protein tyrosine phosphatase superfamily localized on the mitochondrial inner membrane, and regulates the biosynthesis of cardiolipin. Given the important position of PTPMT1 in mitochondrial function and metabolism, pharmacological targeting of PTPMT1 is considered a promising manner in disease treatments. In this study, we mainly investigated the role of PTPMT1 in hepatocellular carcinoma (HCC) ferroptosis, a new type of cell death accompanied by significant iron accumulation and lipid peroxidation. Herein, the pharmacological inhibition of PTPMT1 was induced by alexidine dihydrochloride (AD, a dibiguanide compound). Human HCC cell lines with PTPMT1 knockout and PTPMT1 overexpression were established using CRISPR/Cas9 and lentiviral transduction methods, respectively. The position of PTPMT1 in regulating HCC ferroptosis was evaluated in vitro and in vivo. Our results indicated that pharmacological inhibition of PTPMT1, facilitated by AD treatment, heightens the susceptibility of HCC to cystine deprivation-ferroptosis, and AD treatment promoted the conversion from ferritin-bound Fe
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