ArticleMetabolism: clinical and experimental2020
Targeting pheochromocytoma/paraganglioma with polyamine inhibitors.
Article in Metabolism: clinical and experimental, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 21 citations in OpenAlex.
- Targeted lipidomics between hPheo1 and SDHB KD cells reveal changes in bioactive lipids and PKC with polyamine pathway inhibition.Physiological reports · 2026Article
- Pheochromocytomas and Paragangliomas.Endocrinology and metabolism clinics of North America · 2026Review
- Integrative epitranscriptomic and transcriptomic characterization in human colorectal cancer.Journal of advanced research · 2026Article
- Polyamine Pathway Inhibitor DENSPM Suppresses Lipid Metabolism in Pheochromocytoma Cell Line.International journal of molecular sciences · 2024Article
- Approach to the Patient: Concept and Application of Targeted Radiotherapy in the Paraganglioma Patient.The Journal of clinical endocrinology and metabolism · 2024Review
- The Immune Landscape of Pheochromocytoma and Paraganglioma: Current Advances and Perspectives.Endocrine reviews · 2024Review
- Metabolomics in paraganglioma: applications and perspectives from genetics to therapy.Endocrine-related cancer · 2023Article
- New Biology of Pheochromocytoma and Paraganglioma.Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2022Review
- Genetic impairment of succinate metabolism disrupts bioenergetic sensing in adrenal neuroendocrine cancer.Cell reports · 2022Article
- Article
- Model systems in SDHx-related pheochromocytoma/paraganglioma.Cancer metastasis reviews · 2021Review
- Review
Corrections and comments
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Authors and funding
39 authors at 16 institutions in 6 countries.
Funding
Abstract
backgroundPheochromocytomas (PCCs) and paragangliomas (PGLs) are neuroendocrine tumors that are mostly benign. Metastatic disease does occur in about 10% of cases of PCC and up to 25% of PGL, and for these patients no effective therapies are available. Patients with mutations in the succinate dehydrogenase subunit B (SDHB) gene tend to have metastatic disease. We hypothesized that a down-regulation in the active succinate dehydrogenase B subunit should result in notable changes in cellular metabolic profile and could present a vulnerability point for successful pharmacological targeting.
methodsMetabolomic analysis was performed on human hPheo1 cells and shRNA SDHB knockdown hPheo1 (hPheo1 SDHB KD) cells. Additional analysis of 115 human fresh frozen samples was conducted. In vitro studies using N
resultsComponents of the polyamine pathway were elevated in hPheo1 SDHB KD cells compared to wild-type cells. A similar observation was noted in SDHx PCC/PGLs tissues compared to their non-mutated counterparts. Specifically, spermidine, and spermine were significantly elevated in SDHx-mutated PCC/PGLs, with a similar trend in hPheo1 SDHB KD cells. Polyamine pathway inhibitors DENSPM and DESPM effectively inhibited growth of hPheo1 cells in vitro as well in mouse xenografts.
conclusionsThis study demonstrates overactive polyamine pathway in PCC/PGL with SDHB mutations. Treatment with polyamine pathway inhibitors significantly inhibited hPheo1 cell growth and led to growth suppression in xenograft mice treated with DENSPM. These studies strongly implicate the polyamine pathway in PCC/PGL pathophysiology and provide new foundation for exploring the role for polyamine analogue inhibitors in treating metastatic PCC/PGL. PRéCIS: Cell line metabolomics on hPheo1 cells and PCC/PGL tumor tissue indicate that the polyamine pathway is activated. Polyamine inhibitors in vitro and in vivo demonstrate that polyamine inhibitors are promising for malignant PCC/PGL treatment. However, further research is warranted.
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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 Socratic graph.