The corresponding author Xiaohong Li is retracting this article [1]. Following a review of the original data, the results presented in Figures 5A and 5B which underpin the conclusions of this study were found to be unreliable because of possible technical artifacts in lanes 9–12 of the beta-catenin blot. BioMed Central has been advised by the authors’ institution that investigations by the Research Integrity Committee of the New York State Institute for Basic Research in Developmental Disabilities, the Research Foundation for Mental Hygiene Governance Committee and the Research Foundation for Mental Hygiene Board of Directors concluded that this article should be removed from the scientific literature. W Ted Brown, Ashfaq M Sheikh and Zujaja Tauqeer have agreed with this retraction. We have been unable to contact Fujiang Cao, Ailan Yin, Guang Wen, Mazhar Malik, Amenah Nagori, Michael Schirripa, Frank Schirripa, George Merz and Shiqing Feng.
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