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Published on: July 17, 2020
Phosphodiesterase type 5 and cancers: progress and challenges
Ines Barone1, Cinzia Giordano2, Daniela Bonofiglio1
1Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Italy.
Abstract:
Cancers are an extraordinarily heterogeneous collection of diseases with distinct genetic profiles and biological features that directly influence response patterns to various treatment strategies as well as clinical outcomes. Nevertheless, our growing understanding of cancer cell biology and tumor progression is gradually leading towards rational, tailored medical treatments designed to destroy cancer cells by exploiting the unique cellular pathways that distinguish them from normal healthy counterparts. Recently, inhibition of the activity of phosphodiesterase type 5 (PDE5) is emerging as a promising approach to restore normal intracellular cyclic guanosine monophosphate (cGMP) signalling, and thereby resulting into the activation of various downstream molecules to inhibit proliferation, motility and invasion of certain cancer cells. In this review, we present an overview of the experimental and clinical evidences highlighting the role of PDE5 in the pathogenesis and prevention of various malignancies. Current data are still not sufficient to draw conclusive statements for cancer patient management, but could provide further rational for testing PDE5-targeting drugs as anticancer agents in clinical settings.
Insights
Phosphodiesterase type 5 (PDE5) inhibition shows promise for cancer treatment by restoring cyclic guanosine monophosphate (cGMP) signaling. Further research is needed to confirm its role in cancer patient management.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Cancer is a heterogeneous disease with diverse genetic profiles impacting treatment response.
- Targeted therapies exploit cancer-specific cellular pathways for treatment.
- Understanding cancer cell biology and tumor progression guides the development of tailored medical treatments.
Purpose of the Study:
- To review experimental and clinical evidence on the role of phosphodiesterase type 5 (PDE5) in cancer.
- To highlight PDE5's potential in the pathogenesis and prevention of various malignancies.
- To assess the current status of PDE5-targeting drugs as anticancer agents.
Main Methods:
- Review of experimental studies on PDE5 and cancer.
- Analysis of clinical evidence regarding PDE5's role in malignancies.
- Evaluation of data on PDE5 inhibition and its downstream effects on cancer cells.
Main Results:
- PDE5 inhibition can restore intracellular cyclic guanosine monophosphate (cGMP) signaling.
- This restoration activates downstream molecules that inhibit cancer cell proliferation, motility, and invasion.
- Evidence suggests PDE5 plays a role in the pathogenesis and prevention of certain cancers.
Conclusions:
- Current data are insufficient for definitive conclusions on cancer patient management.
- PDE5-targeting drugs show potential as anticancer agents.
- Further clinical investigation is warranted to validate PDE5 inhibitors in cancer therapy.
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