This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).
This article has been retracted at the request of the Editor.
Fig. 4F, labeled Triptolide plus TNF in wild type mouse embryonic fibroblasts (Trp + TNF/MEF WT) was reused to represent TNF alone in knockout mouse embryonic fibroblasts (TNF/MEF p65−/−). The image has been manipulated in contrast, brightness and size to represent the different experimental conditions.
The article has been retracted because the data integrity has become questionable.