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An Automated Differential Nuclear Staining Assay for Accurate Determination of Mitocan Cytotoxicity
Published on: May 12, 2020
Insight into the interplay between mitochondria-regulated cell death and energetic metabolism in osteosarcoma
Hong Toan Lai1, Nataliia Naumova1, Antonin Marchais2,3
1CNRS, Institut Gustave Roussy, Aspects métaboliques et systémiques de l'oncogénèse pour de nouvelles approches thérapeutiques, Université Paris-Saclay, Villejuif, France.
Abstract:
Osteosarcoma (OS) is a pediatric malignant bone tumor that predominantly affects adolescent and young adults. It has high risk for relapse and over the last four decades no improvement of prognosis was achieved. It is therefore crucial to identify new drug candidates for OS treatment to combat drug resistance, limit relapse, and stop metastatic spread. Two acquired hallmarks of cancer cells, mitochondria-related regulated cell death (RCD) and metabolism are intimately connected. Both have been shown to be dysregulated in OS, making them attractive targets for novel treatment. Promising OS treatment strategies focus on promoting RCD by targeting key molecular actors in metabolic reprogramming. The exact interplay in OS, however, has not been systematically analyzed. We therefore review these aspects by synthesizing current knowledge in apoptosis, ferroptosis, necroptosis, pyroptosis, and autophagy in OS. Additionally, we outline an overview of mitochondrial function and metabolic profiles in different preclinical OS models. Finally, we discuss the mechanism of action of two novel molecule combinations currently investigated in active clinical trials: metformin and the combination of ADI-PEG20, Docetaxel and Gemcitabine.
Insights
Osteosarcoma (OS) treatment needs new drugs due to high relapse rates. Targeting cancer cell metabolism and regulated cell death (RCD) offers promising therapeutic strategies for this pediatric bone cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Metabolism
Background:
- Osteosarcoma (OS) is a pediatric bone cancer with poor prognosis and high relapse rates.
- Current treatments for OS have not improved patient outcomes in decades.
- Mitochondria-related regulated cell death (RCD) and metabolic reprogramming are key cancer hallmarks dysregulated in OS.
Purpose of the Study:
- To review the interplay between regulated cell death (RCD) and metabolism in osteosarcoma (OS).
- To synthesize current knowledge on various RCD types (apoptosis, ferroptosis, necroptosis, pyroptosis, autophagy) in OS.
- To discuss novel therapeutic strategies targeting these pathways.
Main Methods:
- Systematic review of existing literature on RCD and metabolism in OS.
- Analysis of mitochondrial function and metabolic profiles in preclinical OS models.
- Discussion of emerging drug combinations in clinical trials.
Main Results:
- Dysregulation of RCD and metabolism are critical in OS development and progression.
- Targeting metabolic reprogramming offers potential for promoting RCD in OS.
- Novel drug combinations show promise in ongoing clinical investigations.
Conclusions:
- Understanding the intricate link between RCD and metabolism is crucial for developing effective OS therapies.
- Novel therapeutic strategies targeting these pathways may overcome drug resistance and reduce metastasis in OS.
- Further research into metformin and combination therapies (ADI-PEG20, Docetaxel, Gemcitabine) is warranted.
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