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Mechanisms of fenretinide-induced apoptosis
1Department of Clinical Pharmacy, School of Pharmacy, The University of Colorado at Denver and Health Sciences Center, Box C238, 80262, USA. Numsen.Hail@UCHSC.edu
Abstract:
Fenretinide, a synthetic retinoid, has emerged as a promising anticancer agent based on numerous in vitro and animal studies, as well as chemoprevention clinical trials. In vitro observations suggest that the anticancer activity of fenretinide may arise from its ability to induce apoptosis in tumor cells. Diverse signaling molecules including reactive oxygen species, ceramide, and ganglioside GD3 can mediate apoptosis induction by fenretinide in transformed, premalignant, and malignant cells. In many cell types, these signaling intermediates appear to be induced by mechanisms that are independent of retinoic acid receptor activation, and ultimately initiate the intrinsic or mitochondrial-mediated pathway of cell elimination. Numerous investigations conducted during the past 10 years have discovered a great deal about the apoptogenic activity of fenretinide. In this review we explore the mechanisms associated with fenretinide-induced apoptosis and highlight certain mechanistic underpinnings of fenretinide-induced cell death that remain poorly understood and thus warrant further characterization.
Insights
Fenretinide, a synthetic retinoid, shows anticancer potential by triggering programmed cell death (apoptosis) in tumor cells. Further research is needed to fully understand the complex mechanisms behind fenretinide-induced cell death.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Fenretinide is a synthetic retinoid with demonstrated anticancer properties in preclinical and clinical studies.
- Its anticancer activity is linked to the induction of apoptosis in various cancer cell types.
Purpose of the Study:
- To review and explore the mechanisms of fenretinide-induced apoptosis.
- To identify poorly understood aspects of fenretinide's cell death pathways.
Main Methods:
- Review of in vitro and animal studies on fenretinide's anticancer effects.
- Analysis of signaling pathways involved in fenretinide-induced apoptosis, including reactive oxygen species, ceramide, and ganglioside GD3.
Main Results:
- Fenretinide induces apoptosis through mechanisms often independent of retinoic acid receptor activation.
- Key signaling molecules mediate fenretinide's apoptogenic activity, initiating the intrinsic mitochondrial pathway.
Conclusions:
- Fenretinide is a potent inducer of apoptosis in cancer cells.
- Further investigation into the precise molecular underpinnings of fenretinide-induced cell death is warranted.
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