γ-Tocotrienol but not γ-tocopherol blocks STAT3 cell signaling pathway through induction of protein-tyrosine phosphatase SHP-1 and sensitizes tumor cells to chemotherapeutic agents.

VOLUME 285 (2010) PAGES 33520–33528

This article has been retracted by the publisher. An investigation at MD Anderson determined that the image of nuclei from U266 cells treated with γ-T3 from Fig. 1G had been reused in Fig. 1D of Yadav, V. R., Prasad, S., Kannappan, R., Ravindran, J., Chaturvedi, M. M., Vaahtera, L., Parkkinen, J., and Aggarwal, B. B. (2010) Cyclodextrin-complexed curcumin exhibits anti-inflammatory and antiproliferative activities superior to those of curcumin through higher cellular uptake. Biochem. Pharmacol. 80, 1021–1032; the reused image represents different experimental conditions.