UNBS1450, a steroid cardiac glycoside inducing apoptotic cell death in human leukemia cells.

Abstract:

:Cardiac steroids are used to treat various diseases including congestive heart failure and cancer. The aim of this study was to investigate the anti-leukemic activity of UNBS1450, a hemi-synthetic cardenolide belonging to the cardiac steroid glycoside family. Here, we report that, at low nanomolar concentrations, UNBS1450 induces apoptotic cell death. Subsequently, we have investigated the molecular mechanisms leading to apoptosis activation. Our results show that UNBS1450 inhibits NF-κB transactivation and triggers apoptosis by cleavage of pro-caspases 8, 9 and 3/7, by decreasing expression of anti-apoptotic Mcl-1 and by recruitment of pro-apoptotic Bak and Bax protein eventually resulting in cell death.

journal_name

Biochem Pharmacol

journal_title

Biochemical pharmacology

authors

Juncker T,Cerella C,Teiten MH,Morceau F,Schumacher M,Ghelfi J,Gaascht F,Schnekenburger M,Henry E,Dicato M,Diederich M

doi

10.1016/j.bcp.2010.08.025

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

13-23

issue

1

eissn

0006-2952

issn

1873-2968

pii

S0006-2952(10)00656-8

journal_volume

81

pub_type

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