To examine whether these inhibitors could also abolish differentiation-induced PKD phosphorylation, we treated confluent C2C12 cells with the respective inhibitors after serum withdrawal.
Oil Red O staining revealed a dramatic reduction in differentiation for individual shRNAs and an almost completely abolished differentiation when the shRNA pool was used, an effect that mimicked that of PPARγ KD.
Furthermore, an increase in H2O2 concentration has been shown to completely abolish the differentiation of myoblasts into myotubes [29] and the stimulation of mitochondrial ROS production induced a rhabdomyosarcoma-like phenotype in human fibroblasts [14].
In our manuscript our conclusion is TGF-β,M-CSF and VEGF might not be involved in the inhibitory functions of microglia and MLCs and blocking TGF-β, M-CSF and VEGF can not abolish the differentiation from maDC to MLC.
This might be explained by the expression of other members of the KIP/CIP family, as p21 and p27, that is not abolished during differentiation and which can likely compensate for the lack of cdkn1c.
We showed that the perturbation of the F-actin cytoskeleton organization abolished the differentiation process.
Pre-treatment of HL-60 cells with an inhibitor of glycogen synthase kinase-3β (GSK-3β), which activated canonical Wnt signaling, partly abolished the differentiation of HL-60 cells induced by 6-BT.
Although highly expressed in the ADC LCSCs, the CSC-related gene SOX2 was undetectable in corresponding xenograft, suggesting that its expression was drastically abolished following differentiation in vivo, confirming the results observed in vitro.
Our data show that homotypic interactions are required since preincubation of LC-like cells with blocking antibodies against E-cadherin totally abolished LC differentiation during co-culture on KCs, which is compatible to the previous report showing that homotypic LC clustering can be inhibited by the addition of anti-E-cadherin mAb 18.
The XIC binding of MSL-MOF was specific to ESCs, as almost all enrichments were abolished upon differentiation, except for some loci upstream of Xist where traces of binding could still be detected in NPCs (e.g., Ftx and Jpx TSS, Figure 5 figure supplement 1A).
