Toxin peptides targeting acid-sensing ion channels: Opportunities for cancer diagnosis and therapy

Area of Science:

• Neuroscience
• Biochemistry
• Oncology

Background:

• Acid-sensing ion channels (ASICs) are proton-gated cation channels vital for neuronal excitability, synaptic plasticity, and pain perception.
• ASICs are implicated in pathologies like cancer due to their role in pH regulation and ion balance within acidic microenvironments.

Purpose of the Study:

• To review the physiological and pathological roles of ASICs.
• To examine the contribution of toxin peptides to ASIC research.
• To discuss the translational potential of ASIC modulation in biomedical imaging and targeted therapies, especially for cancer.

Main Methods:

• Literature review focusing on ASIC physiology, pathology, and toxin peptide interactions.
• Analysis of current research on ASIC structure-function relationships.
• Exploration of theranostic applications of ASIC-targeting toxins.

Main Results:

• ASICs are key regulators of neuronal function and are dysregulated in various diseases.
• Toxin peptides serve as highly selective molecular probes for ASICs, offering insights into their mechanisms.
• ASIC-targeting toxins show promise for diagnostic imaging and targeted cancer therapies.

Conclusions:

• ASICs play significant roles in both normal physiology and disease states.
• Toxin peptides are invaluable tools for advancing ASIC research and therapeutic development.
• Modulation of ASICs holds considerable translational potential for theranostic applications in oncology and beyond.