Potassium channels: novel emerging biomarkers and targets for therapy in cancer

Massimo D'Amico1, Luca Gasparoli, Annarosa Arcangeli

  • 1Department of Experimental Pathology and Oncology, University of Firenze, Viale G.B. Morgagni, 50, 50134 Firenze, Italy.

Insights

Potassium (K+) channels are key regulators of cancer progression and immune responses. Strategies to overcome side effects of K+ channel blockers offer new therapeutic avenues and biomarker potential for cancer treatment.

Area of Science:

  • Molecular Biology
  • Oncology
  • Pharmacology

Background:

  • Potassium (K+) channels, the largest ion channel family, are crucial for physiological functions.
  • Aberrant K+ channel expression is linked to cancer hallmarks, including proliferation, apoptosis resistance, angiogenesis, and metastasis.
  • K+ channels in the tumor microenvironment influence immune responses, promoting cancer progression.

Purpose of the Study:

  • To explore the role of K+ channels as cancer biomarkers for patient stratification.
  • To investigate the therapeutic potential of targeting K+ channels in cancer treatment.
  • To present strategies for overcoming side effects associated with K+ channel blockers.

Main Methods:

  • Review of existing literature on K+ channels in cancer.
  • Analysis of K+ channel function in cancer cell proliferation, apoptosis, angiogenesis, invasion, and metastasis.
  • Discussion of strategies to mitigate side effects of K+ channel-blocking agents.

Main Results:

  • K+ channels significantly impact multiple cancer hallmarks and the tumor immune microenvironment.
  • Certain K+ channels show promise as novel cancer biomarkers for prognostic and predictive purposes.
  • Strategies exist to manage and overcome adverse effects of K+ channel-targeted therapies.

Conclusions:

  • K+ channels represent viable and accessible targets for cancer therapy and biomarkers.
  • Addressing side effects is critical for the successful clinical application of K+ channel modulators.
  • Further research into K+ channels and associated patents may accelerate clinical translation.

Related Concept Videos

Non-gated Ion Channels01:24

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism.
Non-gated Ion Channels01:24

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism.
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...