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Published on: November 17, 2021
The glutamatergic system outside the CNS and in cancer biology
Niki Kalariti1, Nikos Pissimissis, Michael Koutsilieris
1Department of Experimental Physiology, Medical School, University of Athens, 75 Micras Asias, Goudi-Athens, Greece.
Abstract:
Glutamate is a major excitatory neurotransmitter in the CNS. The signalling machinery consists of: glutamate receptors, which are responsible for signal input; plasma glutamate transporters, which are responsible for signal termination; and vesicular glutamate transporters for signal output through exocytic release. Recently, data have suggested that the glutamatergic system plays an important role in non-neuronal tissues. In addition, the expression of glutamatergic system has been implicated in tumour biology. This review outlines the evidence, which suggests that the glutamatergic system may have an important role in cancer biology.
Insights
The glutamatergic system, crucial for brain signaling, is increasingly recognized for its role beyond neurons. Emerging evidence suggests its involvement in non-neuronal tissues and cancer biology.
Area of Science:
- Neuroscience
- Molecular Biology
- Oncology
Background:
- Glutamate is the primary excitatory neurotransmitter in the central nervous system (CNS).
- The glutamatergic system comprises receptors for signal input, plasma transporters for signal termination, and vesicular transporters for exocytic release.
- Recent findings indicate the glutamatergic system's function in non-neuronal tissues.
Purpose of the Study:
- To review the evidence linking the glutamatergic system to cancer biology.
- To highlight the potential role of glutamate signaling in tumor development and progression.
Main Methods:
- Literature review of studies investigating glutamatergic system components in cancer.
- Analysis of research on glutamate receptor and transporter expression in various tumor types.
- Synthesis of data on the functional implications of glutamatergic signaling in oncogenesis.
Main Results:
- Expression of glutamate receptors and transporters is altered in numerous cancers.
- The glutamatergic system appears to influence key cancer processes like proliferation, survival, and migration.
- Evidence suggests a significant role for this system in non-neuronal tissues, including tumors.
Conclusions:
- The glutamatergic system is implicated in cancer biology.
- Further research into targeting the glutamatergic system could offer novel cancer therapies.
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