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Updated: Jan 28, 2026

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen
19:44

Enhancement of Apoptotic and Autophagic Induction by a Novel Synthetic C-1 Analogue of 7-deoxypancratistatin in Human Breast Adenocarcinoma and Neuroblastoma Cells with Tamoxifen

Published on: May 30, 2012

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Identification of a new tamoxifen-xanthene hybrid as pro-apoptotic anticancer agent

Elena Catanzaro1, Francesca Seghetti2, Cinzia Calcabrini1

  • 1Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy.

Bioorganic Chemistry
|February 21, 2019
PubMed

Insights

New tamoxifen derivatives were synthesized to improve breast cancer treatment. Compound 1, featuring a rigid xanthene core, shows potent antitumor activity and a better safety profile than tamoxifen.

Area of Science:

  • Medicinal Chemistry
  • Oncology
  • Molecular Biology

Background:

  • Breast cancer is a leading cancer in women, with tamoxifen as a standard therapy.
  • Tamoxifen's efficacy is limited by toxicity and chemoresistance.
  • Novel therapeutic strategies are needed to overcome tamoxifen's limitations.

Purpose of the Study:

  • To design and synthesize novel tamoxifen-based derivatives with rigid structures.
  • To evaluate the antitumor potential of these new compounds.
  • To identify promising candidates for further breast cancer drug development.

Main Methods:

  • Synthesis of new tamoxifen derivatives incorporating rigid structural motifs.
  • In vitro evaluation of antiproliferative activity against estrogen receptor-positive breast cancer cells (MCF-7).
  • Assessment of apoptosis induction mechanisms, including PARP cleavage, Bax/Bcl-2 ratio, and Bim gene expression.

Main Results:

  • All tested compounds inhibited MCF-7 cell growth.
  • Compound 1, with a xanthene core, exhibited significant antitumor activity comparable to tamoxifen.
  • Compound 1 demonstrated mitochondria-mediated apoptosis induction.
  • Compound 1 showed a more favorable genotoxic profile than tamoxifen.

Conclusions:

  • Tamoxifen-based derivatives with rigid structures can be effective against breast cancer.
  • Compound 1 is a highly promising candidate due to its potent activity and improved safety profile.
  • Further studies are warranted to explore Compound 1's therapeutic potential in breast cancer.
Keywords:
Bax, Bcl-2, breast cancerapoptosisgenotoxicitytriphenylethylenexanthene scaffoldγ-H2A.X phosphorylation, PARP cleavage, tamoxifen

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