One-Step Formation of Chondrocytes through Direct Reprogramming via Polysaccharide-Based Gene Delivery

Figure 2

Cytotoxicity assay. Notes. Bar1, Lipofectamine 2000- (Lip2000-) plasmid Sox9 (pSox9); bar 2-9, pmPPY/pSox9 nanoparticles at various weight ratio of 9:1, 15:1, 30:1, 50:1, 100:1, 150:1, 200:1, and 300:1; bar 10-16, different folds of dilution of PEI plus pSox9, 100-, 200-, 250-, 350-, 500-, 1000-, 2000-folds from left to right.