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Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
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Pyrazole[3,4-d]pyrimidine derivatives loaded into halloysite as potential CDK inhibitors

Marina Massaro1, Giampaolo Barone1, Viviana Barra1

  • 1Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy.

International Journal of Pharmaceutics
|February 1, 2021
PubMed

Insights

New halloysite nanotube (HNT) nanocomposites loaded with pyrazolo[3,4-d]pyrimidine derivatives show promise as anticancer agents by inhibiting cyclin-dependent kinases (CDKs) and arresting cancer cell cycles.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Medicinal Chemistry

Background:

  • Uncontrolled cell proliferation drives cancer due to deregulated cell cycle progression.
  • Inhibiting cyclin-dependent kinases (CDKs) is a key therapeutic strategy against cancer.
  • Halloysite nanotubes (HNTs) offer a versatile platform for drug delivery.

Purpose of the Study:

  • To synthesize and characterize novel nanocomposites of HNTs with pyrazolo[3,4-d]pyrimidine derivatives (Si306, Si113).
  • To evaluate the in vitro anticancer activity and cell cycle arrest effects of these nanocomposites.
  • To investigate the molecular interactions between the compounds and CDK targets using simulations.

Main Methods:

  • Synthesis and characterization of HNTs/Si306 and HNTs/Si113 nanocomposites.
  • In vitro evaluation of antitumoral activity against HeLa, MDA-MB-231, and HCT116 cancer cell lines.
  • Cell cycle arrest analysis in HCT116 cells and molecular dynamics simulations of CDK complexes.

Main Results:

  • Successful synthesis and characterization of the HNTs/Si306 and HNTs/Si113 nanocomposites.
  • Demonstrated significant antitumoral activity and cell cycle arrest in cancer cell lines.
  • Molecular dynamics simulations provided insights into the binding mechanisms with CDK 1 and 2.

Conclusions:

  • HNTs/pyrazolo[3,4-d]pyrimidine nanocomposites represent a promising new class of anticancer agents.
  • These agents effectively inhibit cancer cell proliferation by targeting CDKs and inducing cell cycle arrest.
  • The study highlights the potential of nanodrug delivery systems for cancer therapy.
Keywords:
CDK inhibitorsHalloysiteNanocompositesPyrazolo[3,4-d]pyrimidine derivatives

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