Related Experiment Video
Updated: May 6, 2026

Chemical Inactivation of the E3 Ubiquitin Ligase Cereblon by Pomalidomide-based Homo-PROTACs
Published on: May 15, 2019
Small compound 6-O-angeloylplenolin induces caspase-dependent apoptosis in human multiple myeloma cells
Ying Liu1, Ying Dong, Bo Zhang
1The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotech and BioMedicine and Division of Life Sciences, Shenzhen Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, P.R. China.
Abstract:
6-O-angeloylplenolin (6-OAP) is a sesquiterpene lactone agent that has been previously demonstrated to inhibit the growth of multiple myeloma (MM) cells through mitotic arrest with accumulated cyclin B1. In the present study, the levels of apoptosis were analyzed in dexamethasone-sensitive (MM.1S), dexamethasone-resistant (U266) and chemotherapy-sensitive (RPMI 8226) myeloma cell lines. Enhanced apoptosis was identified following a 48-h incubation with 6-OAP (0-10 μM) that induced a dose-dependent decrease in pro-casp-3 and the cleavage of its substrate, anti-poly (ADP-ribose) polymerase (PARP). In addition, time-dependent cleavage of PARP was also detected in U266 and MM.1S cells. The mechanism of 6-OAP cytotoxicity in all cell lines was associated with the induction of apoptosis with the presence of cleaved caspase-3 and PARP. In conclusion, 6-OAP-induced apoptosis is caspase-dependent. These observations are likely to provide a framework for future studies of 6-OAP therapy in MM.
More Related Videos
10:45Monitoring Cleaved Caspase-3 Activity and Apoptosis of Immortalized Oligodendroglial Cells using Live-cell Imaging and Cleaveable Fluorogenic-dye Substrates Following Potassium-induced Membrane Depola
Published on: January 13, 2012
12:55Strategies for Tracking Anastasis, A Cell Survival Phenomenon that Reverses Apoptosis
Published on: February 16, 2015
Related Concept Videos
The Intrinsic Apoptotic Pathway
Caspases
Apoptosis
The Extrinsic Apoptotic Pathway