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Related Concept Videos

Structure-Activity Relationships and Drug Design01:28

Structure-Activity Relationships and Drug Design

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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 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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Prodrugs are a class of pharmaceutical compounds that undergo a biotransformation process within the body to be converted into a pharmacologically active drug. Prodrugs are designed to improve the therapeutic properties of the parent drug, such as enhancing bioavailability, increasing stability, or reducing toxicity. The concept of prodrugs revolves around modifying the chemical structure of the original drug to make it more effective or convenient for administration.
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Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
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Pharmaceutical substances known as xenobiotics are predominantly lipophilic and nonionized. This enables them to permeate lipid bilayers, such as cell membranes, and interact with intracellular target receptors. Lipophilic drugs have an advantage in crossing biological barriers and reaching their intended sites of action. However, lipophilic drugs often have a restricted capacity for renal expulsion or elimination from the body. When these drugs enter the kidneys and undergo glomerular...
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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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Updated: Jul 18, 2025

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Drug Repositioning Using Computer-aided Drug Design (CADD).

Sona Rawat1, Kanmani Subramaniam2, Selva Kumar Subramanian3

  • 1School of Life Sciences, Jaipur National University, Jaipur-302017, India.

Current Pharmaceutical Biotechnology
|August 22, 2023
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Summary

Drug repositioning, using authorized drugs for new diseases, is accelerated by computer-aided drug design (CADD). This review highlights CADD technologies and their success in target-based drug reuse for conditions like COVID-19 and cancer.

Keywords:
CADD techniquesCOVID-19Drug repositioningcancer.computer-aided drug designingtarget-based drug repurposing

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Area of Science:

  • Pharmacology
  • Bioinformatics
  • Computational Chemistry

Background:

  • Drug repositioning offers a faster, cost-effective alternative to de novo drug development.
  • Bioinformatics tools, particularly computer-aided drug design (CADD), are crucial for identifying new therapeutic applications of existing drugs.
  • Target-based drug reuse strategies are highly promising for efficient drug discovery.

Conclusions:

  • CADD is a powerful technology driving innovation in drug repositioning.
  • The ligand-targeting strategy within CADD is a validated and increasingly important approach.
  • Continued technological advancements in CADD will further enhance its impact on drug discovery and development.