Abstract Title:

Targeting sarcoplasmic/endoplasmic reticulum Ca²+-ATPase 2 by curcumin induces ER stress-associated apoptosis for treating human liposarcoma.

Abstract Source:

Phytomedicine. 2005 Nov;12(10):715-22. PMID: 21282356

Abstract Author(s):

Lu Wang, Lingxian Wang, Ran Song, Yan Shen, Yang Sun, Yanhong Gu, Yongqian Shu, Qiang Xu

Article Affiliation:

1School of Life Sciences, University of Nanjing.


Human liposarcoma is the most common soft tissue sarcoma. There is no effective therapy so far except for surgery. In this study, we report for the first time that curcumin induces endoplasmic reticulum (ER) stress in human liposarcoma cells via interacting with sarcoplasmic/endoplasmic reticulum Ca2+-ATPase 2 (SERCA2). Curcumin dose-dependently inhibited the cell survival of human liposarcoma cell line SW872 cells but did not affect that of human normal adipose derived cells. Curcumin mediated ER stress via inhibiting the activity of SERCA2 caused increasing expressions of CHOP and its transcription target death receptor 5 (TRAIL-R2), leading to a caspase8/3 cascade dependent apoptosis in SW872 cells in vitro and in vivo. Moreover, 70% of human liposarcoma tissues showed an elevated SERCA2 expression compared with normal adipose tissues. Curcumin dose-dependently inhibited the activity of SERCA2, and the interaction in molecular docking and co-localization in ER of curcumin with SERCA2 were further observed. These findings suggest that curcumin may serve as a potent agent for curing human liposarcoma via targeting SERCA2.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Apoptotic : CK(6986) : AC(5304)

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