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Published on: May 10, 2018
Unexploited Antineoplastic Effects of Commercially Available Anti-Diabetic Drugs
Panagiota Papanagnou1, Theodora Stivarou2, Maria Tsironi3
1Department of Nursing, Faculty of Human Movement and Quality of Life Sciences, University of Peloponnese, Orthias Artemidos and Plateon St, Sparti GR-23100, Greece. panagiota1983rr@yahoo.com.
Abstract:
The development of efficacious antitumor compounds with minimal toxicity is a hot research topic. Numerous cancer cell targeted agents are evaluated daily in laboratories for their antitumorigenicity at the pre-clinical level, but the process of their introduction into the market is costly and time-consuming. More importantly, even if these new antitumor agents manage to gain approval, clinicians have no former experience with them. Accruing evidence supports the idea that several medications already used to treat pathologies other than cancer display pleiotropic effects, exhibiting multi-level anti-cancer activity and chemosensitizing properties. This review aims to present the anticancer properties of marketed drugs (i.e., metformin and pioglitazone) used for the management of diabetes mellitus (DM) type II. Mode of action, pre-clinical in vitro and in vivo or clinical data as well as clinical applicability are discussed here. Given the precious multi-year clinical experience with these non-antineoplastic drugs their repurposing in oncology is a challenging alternative that would aid towards the development of therapeutic schemes with less toxicity than those of conventional chemotherapeutic agents. More importantly, harnessing the antitumor function of these agents would save precious time from bench to bedside to aid the fight in the arena of cancer.
Insights
Repurposing diabetes drugs like metformin and pioglitazone shows promise for cancer treatment. These existing medications offer a less toxic, faster route to new oncology therapies with proven clinical experience.
Area of Science:
- Oncology
- Pharmacology
- Drug Repurposing
Background:
- Developing new antitumor agents is costly, time-consuming, and lacks clinical experience.
- Existing non-antineoplastic drugs may possess pleiotropic effects with anti-cancer activity.
- Repurposing established medications offers a potential alternative to novel drug development.
Purpose of the Study:
- To review the anticancer properties of metformin and pioglitazone, commonly used for type II diabetes mellitus.
- To discuss their mechanisms of action, pre-clinical and clinical data, and clinical applicability in oncology.
- To highlight the potential of repurposing these drugs for less toxic cancer therapies.
Main Methods:
- Literature review of pre-clinical (in vitro, in vivo) and clinical studies.
- Analysis of the mode of action of metformin and pioglitazone against cancer cells.
- Evaluation of clinical applicability and safety profiles of these drugs in an oncology context.
Main Results:
- Metformin and pioglitazone exhibit multi-level anti-cancer activity and chemosensitizing properties.
- Evidence suggests these drugs can be effective against various cancer types.
- Existing clinical data supports their potential use in cancer treatment regimens.
Conclusions:
- Repurposing metformin and pioglitazone is a viable strategy for developing novel cancer therapies.
- These drugs offer a potentially less toxic alternative to conventional chemotherapy agents.
- Harnessing their anti-cancer functions can accelerate the translation of research findings to clinical practice.
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