Insight into the apoptosis-inducing action of α-bisabolol towards malignant tumor cells: Involvement of lipid rafts and Bid

  • Elena Darra
  • , Safwat Abdel-Azeim
  • , Anna Manara
  • , Kazuo Shoji
  • , Jean Didier Maréchal
  • , Sofia Mariotto
  • , Elisabetta Cavalieri
  • , Luigi Perbellini
  • , Cosimo Pizza
  • , David Perahia
  • , Massimo Crimi
  • , Hisanori Suzuki*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

In a precedent report we showed that α-bisabolol, a sesquiterpene present widely in the plant kingdom, exerts a rapid and efficient apoptosis-inducing action selectively towards human and murine malignant glioblastoma cell lines through mitochondrial damage. The present study extends these data demonstrating the apoptosis-inducing action of α-bisabolol towards highly malignant human pancreatic carcinoma cell lines without affecting human fibroblast viability. The present study further shows the preferential incorporation of α-bisabolol to transformed cells through lipid rafts on plasma membranes and, thereafter, direct interaction between α-bisabolol and Bid protein, one of pro-apoptotic Bcl-2 family proteins, analyzed either by Surface Plasmon Resonance method or by intrinsic fluorescence measurement. Notions that lipid rafts are rich in plasma membranes of transformed cells and that Bid, richly present in lipid rafts, is deeply involved in lipid transport make highly credible the hypothesis that the molecular mechanism of α-bisabolol action may include its capacity to interact with Bid protein.

Original languageEnglish
Pages (from-to)113-123
Number of pages11
JournalArchives of Biochemistry and Biophysics
Volume476
Issue number2
DOIs
StatePublished - 15 Aug 2008
Externally publishedYes

Bibliographical note

Funding Information:
Authors thank technical assistance of Francesco Pasini for GC–MS analysis. SPR was partly performed at Tokyo University of Science (Chiba, Japan) with a kind help of Prof. Tanuma. The manuscript was carefully proofed by Michelle Strauss. The present work was financially supported by Cariverona Foundation (Cariverona project 2003 to H.S.) and 60% (to H.S. and M.C.).

Keywords

  • Apoptosis
  • Bid
  • Lipid rafts
  • Mitochondria
  • Pancreatic carcinoma cell lines
  • Surface Plasmon Resonance
  • α-Bisabolol

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology

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