%0 Journal Article %T Withaferin A Induces Proteasome-Dependent Degradation of Breast Cancer Susceptibility Gene 1 and Heat Shock Factor 1 Proteins in Breast Cancer Cells %A Xuan Zhang %A Barbara Timmermann %A Abbas K. Samadi %A Mark S. Cohen %J ISRN Biochemistry %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/707586 %U http://dx.doi.org/10.5402/2012/707586