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Related Concept Videos

Drug Discovery: Overview01:26

Drug Discovery: Overview

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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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Structure-Activity Relationships and Drug Design01:28

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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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Drug-receptor bonds are formed through various chemical forces when drugs interact with target cells. Covalent bonds, strong and irreversible, are exemplified by DNA-alkylating anticancer agents that inhibit cell division. However, such irreversible drug binding lacks selectivity and can modify the DNA of the surrounding healthy cells. Covalent binding often contributes to tissue toxicity, as seen with chloroform and paracetamol metabolites binding to the liver, causing hepatotoxicity.
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Pharmacogenomics: Identification of New Drug Targets01:29

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Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
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Quantitative Aspects of Drug-Receptor Interaction01:30

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The receptor occupancy theory connects a drug's response to the number of occupied receptors. With higher drug concentrations, more receptors are occupied, leading to increased responses. The formation of drug-receptor complexes involves association and dissociation rates, which reach equilibrium when the forward and backward reactions are equal. The equilibrium association constant (Ka) and its inverse, the equilibrium dissociation constant (Kd), indicate drug affinity. Higher Ka and lower...
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Related Experiment Video

Updated: Mar 2, 2026

High-throughput Identification of Synergistic Drug Combinations by the Overlap2 Method
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Combinatorial chemistry in drug discovery.

Ruiwu Liu1, Xiaocen Li1, Kit S Lam2

  • 1Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, CA 95817, USA; University of California Davis Comprehensive Cancer Center, Sacramento, CA 95817, USA.

Current Opinion in Chemical Biology
|May 12, 2017
PubMed
Summary

Combinatorial chemistry enables rapid drug discovery by creating diverse molecular libraries. New technologies enhance the design, synthesis, and screening of these libraries for next-generation therapeutics.

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Area of Science:

  • Medicinal Chemistry
  • Drug Discovery
  • Organic Synthesis

Background:

  • Combinatorial chemistry is crucial for generating diverse chemical libraries.
  • Various molecular structures like peptides and small molecules are synthesized.
  • Each method requires unique screening and encoding strategies.

Purpose of the Study:

  • To provide an overview of combinatorial chemistry in drug discovery.
  • To highlight new technologies in library design, synthesis, screening, and decoding.
  • To discuss applications, limitations, and strengths of combinatorial approaches.

Main Methods:

  • Overview of established and emerging combinatorial chemistry techniques.
  • Emphasis on high-throughput screening and encoding strategies.
  • Review of recent technological advancements in library generation.

Main Results:

  • Successful applications of combinatorial chemistry in hit discovery and lead optimization are presented.
  • Strengths and limitations of current combinatorial methods are discussed.
  • Advancements facilitate more efficient drug development.

Conclusions:

  • Combinatorial chemistry is a powerful tool for discovering and developing novel drugs.
  • Emerging technologies are improving the efficiency and scope of library synthesis and screening.
  • The field is well-positioned to accelerate the development of next-generation pharmaceuticals.