Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12885-022-09370-1/MediaObjects/12885_2022_9370_Fig4_HTML.png)
Exosome levels released from SK-HEP-1 derivatives. Quantification of exosomes. White and gray columns represent values from the control and sphere inducing medium, respectively. If necessary, the exosome inhibitor, GW4869 hydrochloride hydrate (final concentration, 5 μM), was added. *P < 0.05 with Tukey–Kramer multiple comparison test