Please use this identifier to cite or link to this item:
|Title:||Mechanism of cell death induced by an antioxidant extract of Cratoxylum cochinchinense (YCT) in Jurkat T cells: The role of reactive oxygen species and calcium||Authors:||Tang, S.Y.
Dulbecco's modified Eagle's medium
Plasma membrane redox system
|Issue Date:||2004||Citation:||Tang, S.Y., Whiteman, M., Jenner, A., Peng, Z.F., Halliwell, B. (2004). Mechanism of cell death induced by an antioxidant extract of Cratoxylum cochinchinense (YCT) in Jurkat T cells: The role of reactive oxygen species and calcium. Free Radical Biology and Medicine 36 (12) : 1588-1611. ScholarBank@NUS Repository. https://doi.org/10.1016/j.freeradbiomed.2004.03.018||Abstract:||YCT is a semipurified extract from Cratoxylum cochinchinense that has antioxidant properties and contains mostly mangiferin. We show here that YCT is selectively toxic to certain cell types and investigate the mechanisms of this toxicity in Jurkat T cells. By flow cytometric analyses, we show that YCT causes intense oxidative stress and a rise in cytosolic Ca2+. This is followed by a rise in mitochondrial Ca2+, release of cytochrome c, collapse of Δψm, a fall in ATP levels, and eventually cell death. The mechanism(s) of intense oxidative stress may involve a plasma membrane redox system, as cell death is inhibited by potassium ferricyanide. Cell death has some features of apoptosis (propidium iodide staining, externalization of phosphatidylserine, limited caspase-3 and -9 activities), but there was no internucleosomal DNA fragmentation. © 2004 Elsevier Inc. All rights reserved.||Source Title:||Free Radical Biology and Medicine||URI:||http://scholarbank.nus.edu.sg/handle/10635/38099||ISSN:||08915849||DOI:||10.1016/j.freeradbiomed.2004.03.018|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 10, 2019
WEB OF SCIENCETM
checked on Dec 3, 2019
checked on Dec 2, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.