Expression of Concern: Inhibition of TPO-induced MEK or mTOR activity induces opposite effects on the ploidy of human differentiating megakaryocytes (doi:10.1242/jcs.02784)

[This Expression of Concern relates to [J. Cell Sci. (2006) 119, 744-752 (doi:10.1242/jcs.02784)][2]][2]. Journal of Cell Science was informed that several bands in each of the ERK1/2, P-AKT, AKT and p70S6K blots in Fig. 5 look very similar. After discussions with the first author, Raffaella