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Conotoxin therapeutics: a pipeline for success?
Marianne A Grant1, Kumaran Shanmugasundaram, Alan C Rigby
1Division of Molecular and Vascular Medicine, Department of Medicine, Center for Vascular Biology Research, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA. arigby@bidmc.harvard.edu.
Expert Opinion on Drug Discovery
|March 15, 2013
Summary
Conotoxins from marine snails offer diverse molecular scaffolds for drug discovery. Despite challenges with peptide therapeutics, ongoing research aims to expand the clinical utility of these compounds.
Area of Science:
- Marine natural products chemistry
- Drug discovery and development
- Neuropharmacology
Background:
- Conotoxins, peptides from marine snails of the genus Conus, possess unique pharmacophoric descriptors.
- These descriptors are crucial for conotoxin receptor-target specificity and selectivity, enabling subtype-selective receptor recognition.
Purpose of the Study:
- To review the current status of conotoxin-based drug discovery.
- To highlight ongoing preclinical and clinical studies involving conotoxins.
- To discuss strategies for overcoming challenges in peptide therapeutics.
Main Methods:
- Literature review of conotoxin research.
- Analysis of preclinical and clinical trial data.
- Discussion of peptide drug development strategies.
Main Results:
- The pharmacopoeia of conotoxins has evolved, yielding numerous molecular scaffolds.
- While conotoxins show promise, their clinical utility remains limited, with only ziconotide (ω-MVIIA) approved by the US FDA.
- Significant efforts are underway in preclinical and clinical research to advance conotoxin therapeutics.
Conclusions:
- Conotoxins represent a valuable resource for drug discovery due to their inherent specificity.
- Overcoming barriers associated with peptide therapeutics is essential for expanding the clinical application of conotoxins.
- Integrating natural diversity with rational drug design can enhance the Conus drug pipeline.
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