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Related Concept Videos

Drug Discovery: Overview01:26

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
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Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
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Pharmacodynamics is a scientific field that delves into drugs' intricate biochemical, cellular, and physiological effects on the human body. The study of pharmacodynamics helps us understand how drugs interact with the body and elicit various responses.
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Drugs are chemical substances that modify biological responses by interacting with macromolecular targets such as receptors, ion channels, transporters, and enzymes. Pharmacodynamics describes the course of action of drugs leading to the physiological effect at a specific site in the body.
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NMR-Based Fragment Screening in a Minimum Sample but Maximum Automation Mode
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mRNA display: from basic principles to macrocycle drug discovery.

Kristopher Josephson1, Alonso Ricardo1, Jack W Szostak2

  • 1Ra Pharmaceuticals, One Kendall Square, Suite B14301, Cambridge, MA 02139, USA.

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Summary
This summary is machine-generated.

A novel mRNA-display technology rapidly synthesizes and screens macrocyclic peptide libraries. This method enables the discovery of high-affinity macrocycles for applications like protein-protein interaction inhibition.

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Area of Science:

  • Biochemistry and Medicinal Chemistry
  • Chemical Biology
  • Drug Discovery

Background:

  • Exploring novel chemical space is crucial for identifying new therapeutics.
  • Macrocyclic peptides, inspired by natural products, offer unique structural and functional properties.
  • Existing methods for synthesizing and screening large macrocyclic peptide libraries are often limited.

Purpose of the Study:

  • To introduce a new mRNA-display technology for rapid synthesis and screening of macrocyclic peptide libraries.
  • To explore the potential of this technology in discovering molecules with therapeutic applications.
  • To highlight the advantages of this platform for accessing diverse chemical space.

Main Methods:

  • Utilizing mRNA-display for high-throughput synthesis of macrocyclic peptides.
  • Incorporating modified backbones and unnatural amino acids into peptide libraries.
  • Employing target-based screening to select high-affinity binders.
  • Developing libraries to mimic natural product chemical space.

Main Results:

  • Demonstrated rapid synthesis and screening of diverse macrocyclic peptide libraries.
  • Successfully selected high-affinity peptidic macrocycles with modified structures.
  • Identified potential applications in discovering protein-protein interaction inhibitors and enzyme inhibitors.
  • Showcased the technology's ability to generate synthetic antibody mimetics.

Conclusions:

  • The described mRNA-display technology is a powerful tool for discovering macrocyclic peptides.
  • This platform facilitates exploration of valuable chemical space for drug discovery.
  • Future improvements could focus on library design for enhanced cell permeability and bioavailability.