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Allitridi induces apoptosis by affecting Bcl-2 expression and caspase-3 activity in human gastric cancer cells

Hong Lan1, You-yong Lü

  • 1Beijing Molecular Oncology, Beijing Institute for Cancer Research, School of Oncology, Peking University, Beijing 100034, China.

Acta Pharmacologica Sinica
|February 11, 2004
PubMed
Abstract

Insights

Allitridi triggers apoptosis and inhibits proliferation in human gastric cancer cells (BGC823) by reducing Bcl-2 and activating caspase-3. This study elucidates the anti-cancer mechanism of allitridi.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Cell Biology

Background:

  • Gastric cancer remains a significant global health challenge.
  • Understanding the molecular mechanisms of anti-cancer agents is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the apoptosis-inducing mechanism of allitridi in the human gastric cancer cell line BGC823.
  • To elucidate how allitridi affects cell proliferation and key proteins involved in apoptosis.

Main Methods:

  • Cell growth inhibition was assessed using cell growth curves and MTT assays.
  • Apoptosis was detected via Hoechst 33342 staining, flow cytometry, and DNA fragmentation analysis.
  • Protein expression (Bcl-2, Bax, p53) and caspase-3 activity were quantified using Western blot and fluorescence assays, respectively.

Main Results:

  • Allitridi demonstrated significant growth inhibition and induced apoptosis in BGC823 cells.
  • A notable decrease in Bcl-2 protein levels was observed, while Bax and p53 remained largely unaffected.
  • Caspase-3 expression and activity increased significantly after 72 hours of allitridi treatment.

Conclusions:

  • Allitridi induces apoptosis in gastric cancer cells primarily through the down-regulation of Bcl-2.
  • The activation of caspase-3 plays a key role in the allitridi-mediated apoptotic pathway.
  • These findings highlight allitridi's potential as a therapeutic agent for gastric cancer.

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