Andrographolide, isolated from Andrographis paniculata, induces apoptosis in monocytic leukemia and multiple myeloma cells via augmentation of reactive oxygen species production
Open Access
- 6 July 2021
- journal article
- Published by F1000 Research Ltd in F1000Research
- Vol. 10, 542
- https://doi.org/10.12688/f1000research.53595.1
Abstract
Background: Andrographolide (Andro) is a diterpenoid component of the plant Andrographis paniculata that is known for its anti-tumor activity against a variety of cancer cells. Methods: We studied the effects of Andro on the viability of the human leukemia monocytic cell line THP-1 and the human multiple myeloma cell line H929. Andro was compared with cytosine arabinoside (Ara-C) and vincristine (VCR), which are well-established therapeutics against hematopoietic tumors. Results: Andro reduced the viability of THP-1 and H929 in a dose-dependent manner. H929 viability was highly susceptible to Andro, although only slightly susceptible to Ara-C. The agents Andro, Ara-C, and VCR each induced apoptosis, as shown by cellular shrinkage, DNA fragmentation, and increases in annexin V-binding, caspase-3/7 activity, reactive oxygen species (ROS) production, and mitochondrial membrane depolarization. The apoptotic activities of Andro were largely suppressed by N-acetyl-L-cysteine (NAC), an inhibitor of ROS production, whereas NAC hardly affected the apoptotic activities of Ara-C and VCR. Furthermore, whereas Ara-C and VCR increased the percentages of cells in the G0/G1 and G2/M phases, respectively, Andro showed little or no detectable effect on cell cycle progression. Conclusions: Andro induces ROS-dependent apoptosis in monocytic leukemia THP-1 and multiple myeloma H929 cells, underlining its potential as a therapeutic agent for treating hematopoietic tumors. Notably, the high sensitivity of H929 cells is encouraging for further studies on the use of Andro against multiple myeloma.Keywords
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