Fig. 4: iMSC^Endostatin produces/deploys endostatin.

A Schematic diagram of endostatin structure. We introduced the mCherry tag at the C-terminus of endostatin (iMSC^Endostatin). B Confocal imaging of iMSC^Endostatin releasing endostatin. C 3D reconstructed image of B local. Arrows point to endostatin released by iMSC^Endostatin.