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Related Experiment Video

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Pyrazolo-1-carbothioamides as EGR-1-DNA binding disruptors.

Hyuk Yoon1, Seunghyun Ahn2, Dongsoo Koh2

  • 1Division of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.

Bioorganic & Medicinal Chemistry Letters
|December 2, 2024
PubMed
Summary

Researchers developed novel pyrazolo-1-carbothioamide compounds that effectively disrupt early growth response 1 (EGR-1) DNA binding. Compound 36 demonstrated superior activity, offering a promising strategy for inflammatory disease treatment.

Keywords:
Early growth response-1Electrophoretic mobility shift assayIn silico dockingPyrazolo-1-carbothioamidesQSARReverse-transcription polymerase chain reaction

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Area of Science:

  • Medicinal Chemistry
  • Molecular Biology
  • Pharmacology

Background:

  • Early growth response 1 (EGR-1) is a critical transcription factor involved in inflammatory responses.
  • Targeting EGR-1 presents a potential therapeutic strategy for inflammatory conditions like atopic dermatitis.
  • Previous research identified compound AB1711 as a disruptor of EGR-1 DNA binding.

Purpose of the Study:

  • To synthesize and evaluate novel pyrazolo-1-carbothioamide derivatives for enhanced EGR-1 DNA binding disruption.
  • To identify the most potent compound and elucidate its mechanism of action.
  • To explore the therapeutic potential of EGR-1 inhibitors in inflammatory diseases.

Main Methods:

  • Synthesis of seventy pyrazolo-1-carbothioamide compounds.
  • Assays to measure the disruption of EGR-1 DNA binding.
  • Quantitative structure-activity relationship (QSAR) analyses, including comparative molecular field analysis (CoMFA) and comparative molecular similarity index analysis (COMSIA).
  • In silico molecular docking to determine the binding mode of the lead compound.
  • In vitro assays (electrophoretic mobility shift assay, RT-PCR) to confirm cellular activity.

Main Results:

  • Fifty-one of the seventy synthesized compounds exhibited superior EGR-1 DNA binding disruption compared to AB1711.
  • Compound 36, N-(2,4-dimethoxyphenyl)-3-(1-hydroxynaphthalen-2-yl)-5-(2,4,6-trimethoxyphenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide, showed the highest activity.
  • QSAR and in silico docking analyses provided insights into the pharmacophores responsible for activity and the binding interactions.
  • Compound 36 effectively disrupted EGR-1 DNA binding in cellular assays.

Conclusions:

  • Novel pyrazolo-1-carbothioamide derivatives are effective inhibitors of EGR-1 DNA binding.
  • Compound 36 is a potent EGR-1 inhibitor with potential for treating inflammatory diseases.
  • The study provides a strong foundation for further development of EGR-1 targeting therapeutics.