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Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
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Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
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New Spirocyclic Hydroxamic Acids as Effective Antiproliferative Agents.

Margarita E Neganova1, Sergey G Klochkov1, Yulia R Aleksandrova1

  • 1Institute of Physiologically Active Compounds of Russian Academy of Sciences, Severny pr, 1. Chernogolovka, Moscow Region, 142432, Russian Federation.

Anti-Cancer Agents in Medicinal Chemistry
|May 28, 2020
PubMed
Summary

New spirocyclic hydroxamic acids show significant anticancer potential. These compounds exhibit antiproliferative activity and multiple mechanisms of action, including antioxidant effects and enzyme inhibition, making them promising hit compounds for drug development.

Keywords:
Anti-cancer agentscytotoxicity profileglycolysishistone deacetylaseshydroxamic acidsmitochondriapotential antioxidant properties

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Area of Science:

  • Medicinal Chemistry
  • Pharmacology
  • Oncology

Background:

  • Hydroxamic acids are a class of compounds with demonstrated anticancer properties.
  • Their efficacy stems from metal chelation, antioxidant activity, histone deacetylase inhibition, and chemosensitization.
  • This study explores novel spirocyclic hydroxamic acids for enhanced anticancer applications.

Purpose of the Study:

  • Synthesize novel spirocyclic hydroxamic acids.
  • Evaluate their cytotoxicity against various cancer cell lines.
  • Elucidate the mechanisms underlying their anticancer activity.

Main Methods:

  • Synthesis of original spirocyclic hydroxamic acids.
  • Assessment of antiproliferative and cytotoxic activities on SH-SY5Y, HeLa, and HEK-293 cell lines.
  • Investigation of mechanisms including antioxidant effects, mitochondrial membrane potential, histone deacetylase inhibition, and glycolysis.

Main Results:

  • Successful synthesis of novel spirocyclic hydroxamic acids.
  • Demonstrated antiproliferative effects against tested tumor cell lines.
  • Compounds exhibited antioxidant activity, mitochondrial depolarization, histone deacetylase inhibition, and reduced glycolysis.

Conclusions:

  • The synthesized spirocyclic hydroxamic acids possess significant antiproliferative properties.
  • Compounds 5j-l, featuring two chlorine atoms and a hydroxamate group, are particularly promising.
  • These compounds represent potential hit compounds for developing multi-target anticancer agents.