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(A) Representative images of intracellular trafficking of rHDL/PEI-LA/pDNAYOYO-1 in MSCs at 2 h observed by CLSM. PEI-LA/pDNAYOYO-1 was set as control. Scale bar: 25 μm. (B) Representative images of co-location of Cy5.5-rHDL/pDNAYOYO-1 treated MSCs at 6 h. Scale bar: 25 μm.