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From Vanadis to Atropos: vanadium compounds as pharmacological tools in cell death signalling
A Morinville1, D Maysinger, A Shaver
1Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada.
Abstract:
Vanadium compounds exert a variety of biological responses, the most notable being their effects as insulin mimetics. More recently, they have been used as pharmacological tools to investigate signalling pathways. Some peroxovanadium compounds act as powerful protein tyrosine phosphatase inhibitors, modulating both the extent and duration of phosphotyrosine signals at the level of the transmembrane growth factor receptors and targets in the cytoplasm and nucleus. A brief history of vanadium compounds, selected chemical properties of vanadium compounds and the ability of peroxovanadium complexes to modulate the activities of protein tyrosine phosphatases and tyrosine kinases are presented in this review by Anne Morinville, Dusica Maysinger and Alan Shaver. From the range of biological activities of these compounds, this review focuses on cytotoxic effects and possible roles of mitogen-activated protein kinases in mediating the effects exerted by vanadium compounds.
Insights
Vanadium compounds, known as insulin mimetics, can inhibit protein tyrosine phosphatases. This review explores their cytotoxic effects and role in mitogen-activated protein kinase signaling pathways.
Area of Science:
- Biochemistry
- Pharmacology
- Cell Biology
Background:
- Vanadium compounds exhibit diverse biological activities, notably acting as insulin mimetics.
- They serve as pharmacological tools for investigating cellular signaling pathways.
- Peroxovanadium compounds are potent inhibitors of protein tyrosine phosphatases.
Purpose of the Study:
- To review the biological effects of vanadium compounds.
- To focus on the cytotoxic effects of vanadium compounds.
- To explore the role of mitogen-activated protein kinases in mediating vanadium compound effects.
Main Methods:
- Literature review of vanadium compound properties and biological activities.
- Analysis of peroxovanadium complexes' modulation of protein tyrosine phosphatases and kinases.
- Examination of cytotoxic effects and mitogen-activated protein kinase pathways.
Main Results:
- Vanadium compounds modulate phosphotyrosine signaling at various cellular levels.
- Peroxovanadium complexes inhibit protein tyrosine phosphatases, affecting signal duration and extent.
- Mitogen-activated protein kinases may mediate the cytotoxic effects of vanadium compounds.
Conclusions:
- Vanadium compounds possess significant biological activities, including insulin mimicry and protein tyrosine phosphatase inhibition.
- Their modulation of signaling pathways has implications for pharmacological research.
- Further investigation into their cytotoxic effects and role in kinase signaling is warranted.