Glutamatergic Signaling a Therapeutic Vulnerability in Melanoma

Kevinn Eddy1,2, Suzie Chen1,2,3,4

  • 1Graduate Program in Cellular and Molecular Pharmacology, School of Graduate Studies, Rutgers University, Piscataway, NJ 08854, USA.

Cancers
|August 7, 2021
PubMed

Insights

Metabotropic Glutamate Receptor 1 (mGluR1) drives melanoma by activating MAPK and PI3K/AKT pathways. Targeting mGluR1 signaling offers a potential new therapeutic strategy for melanoma treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Neuroscience

Background:

  • Melanoma progression involves hyperactivated MAPK and PI3K/AKT signaling pathways.
  • Mutations in BRAF, RAS, and NF1 are known drivers of melanoma.
  • Metabotropic Glutamate Receptor 1 (mGluR1) is a newly identified melanoma driver upstream of these pathways.

Purpose of the Study:

  • To review the proposed mechanisms of mGluR1's oncogenic activity in melanoma.
  • To explore the potential of anti-glutamatergic therapies for melanoma treatment.

Main Methods:

  • Literature review of studies on mGluR1 in melanoma.
  • Analysis of signaling pathways (MAPK, PI3K/AKT) affected by mGluR1.
  • Assessment of therapeutic strategies targeting glutamatergic signaling.

Main Results:

  • mGluR1 activation by glutamate triggers MAPK and PI3K/AKT pathways.
  • This activation leads to deregulated cell growth, survival, and metastasis in melanoma.
  • mGluR1 represents a novel therapeutic target.

Conclusions:

  • mGluR1 plays a significant role in melanoma oncogenesis.
  • Inhibiting mGluR1 signaling is a promising therapeutic avenue for melanoma.

Related Concept Videos

Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
7.2K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.7K
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
3.1K
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
3.1K