Correction to: Cell Commun Signal (2020) 18:36

https://doi.org/10.1186/s12964-019-0507-3

Following publication of the original article [1], the authors reported an error in the section Mammosphere formation assay. 5 mg/mL insulin should be 5 μg/mL insulin. The second sentence should therefore read as follows:

The medium contained 32% MethoCult medium, 20% MammoCult basal human medium with a final concentration of 2% MammoCult proliferation supplements and 48% DMEM supplemented with final concentrations of 100 pg/mL EGF, 50 ng/mL bFGF, 5 ng/mL stem cell factor, 1 μM hydrocortisone, and 5 μg/mL insulin, all obtained from STEMCELL Technologies.

The authors apologise for this error.