ArticleCancers2019
CYP17A1 Maintains the Survival of Glioblastomas by Regulating SAR1-Mediated Endoplasmic Reticulum Health and Redox Homeostasis.
Article in Cancers, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 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
19 citing papers in PubMed, 42 citations in OpenAlex.
- Dual suppression of stemness and redox adaptation in glioblastoma through filaggrin upregulation by an abiraterone-based HDAC inhibitor.Journal of biomedical science · 2026Article
- Unraveling the Mechanism of Perillyl Alcohol and Its Derivatives as Potent Antifungal Agents against Gray Mold.Journal of agricultural and food chemistry · 2026Article
- Identification of cancer-associated fibroblast signature genes for potential biomarkers in cholangiocarcinoma: a Mendelian randomization study.Discover oncology · 2025Article
- Extracellular vesicle signatures from eye lavage as novel non-invasive biomarkers for hypoxic ischaemic insult-findings from a neonatal mouse model.Frontiers in medical technology · 2025Article
- SAR1A Induces Cell Growth and Epithelial-Mesenchymal Transition Through the PI3K/AKT/mTOR Pathway in Head and Neck Squamous Cell Carcinoma: An In Vitro and In Vivo Study.Biomedicines · 2024Article
- Progesterone boosts abiraterone-driven target and NK cell therapies against glioblastoma.Journal of experimental & clinical cancer research : CR · 2024Article
- Androgen deficiency is associated with a better prognosis in glioblastoma.European journal of medical research · 2024Article
- Dysregulated lipid metabolism in TMZ-resistant glioblastoma: pathways, proteins, metabolites and therapeutic opportunities.Lipids in health and disease · 2023Review
- Non-steroidal CYP17A1 Inhibitors: Discovery and Assessment.Journal of medicinal chemistry · 2023Review
- Synthesis and Preclinical Evaluation of Small-Molecule Prostate-Specific Membrane Antigen-Targeted Abiraterone Conjugate.Molecules (Basel, Switzerland) · 2022Article
- SAR1A regulates the RhoA/YAP and autophagy signaling pathways to influence osteosarcoma invasion and metastasis.Cancer science · 2022Article
- Androgen Receptor Expression in the Various Regions of Resected Glioblastoma Multiforme Tumors and in an In Vitro Model.International journal of molecular sciences · 2022Article
- Comprehensive and Quantitative Analysis of the Changes in Proteomic and Phosphoproteomic Profiles during Stimulation and Repression of Steroidogenesis in MA-10 Leydig Cells.International journal of molecular sciences · 2022Article
- Reprogramming of arachidonate metabolism confers temozolomide resistance to glioblastoma through enhancing mitochondrial activity in fatty acid oxidation.Journal of biomedical science · 2022Article
- Hijacking Sexual Immuno-Privilege in GBM-An Immuno-Evasion Strategy.International journal of molecular sciences · 2021Article
- Steroidogenic cytochrome P450 17A1 structure and function.Molecular and cellular endocrinology · 2021Review
- The Role and Mechanism of Oxidative Stress and Nuclear Receptors in the Development of NAFLD.Oxidative medicine and cellular longevity · 2021Review
- Insights into the role of estrogens and androgens in glial tumorigenesis.Journal of carcinogenesis · 2021Review
- ANGPTL4 Induces TMZ Resistance of Glioblastoma by Promoting Cancer Stemness Enrichment via the EGFR/AKT/4E-BP1 Cascade.International journal of molecular sciences · 2019Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
Cytochrome P450 (CYP) 17A1 is an important steroidogenic enzyme harboring 17α-hydroxylase and performing 17,20 lyase activities in multiple steps of steroid hormone synthesis, including dehydroepiandrosterone (DHEA) biosynthesis. Previously, we showed that CYP17A1-mediated DHEA production clearly protects glioblastomas from temozolomide-induced apoptosis, leading to drug resistance. Herein, we attempt to clarify whether the inhibition of CYP17A1 has a tumor-suppressive effect, and to determine the steroidogenesis-independent functions of CYP17A1 in glioblastomas. Abiraterone, an inhibitor of CYP17A1, significantly inhibits the proliferation of A172, T98G, and PT#3 (the primary glioblastoma cells) by inducing apoptosis. In parallel, abiraterone potently suppresses tumor growth in mouse models through transplantation of PT#3 cells to the back or to the brain. Based on evidence that abiraterone induces endoplasmic reticulum (ER) stress, followed by the accumulation of reactive oxygen species (ROS), CYP17A1 is important for ER health and redox homeostasis. To confirm our hypothesis, we showed that CYP17A1 overexpression prevents the initiation of ER stress and attenuates ROS production by regulating SAR1a/b expression. Abiraterone dissociates SAR1a/b from ER-localized CYP17A1, and induces SAR1a/b ubiquitination, leading to degradation. Furthermore, SAR1 overexpression rescues abiraterone-induced apoptosis and impairs redox homeostasis. In addition to steroid hormone synthesis, CYP17A1 associates with SAR1a/b to regulate protein processing and maintain ER health in glioblastomas.
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Registered trials
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.