Nonintegrating Direct Conversion Using mRNA into Hepatocyte-Like Cells
In vivo transplantation of R-iHeps. (a) mCherry labeled R-iHeps (5X105 cells/100 ul) transplanted into Alb-TRECK/SCID mice via intrasplenic injection. Alb-TRECK/SCID mice were liver damaged by diphtheria toxin (DT, 2 ug/kg) 48 hrs before cell transplantation. All histological data were shown at 48 hrs after cell transplantation. Normal group: no DT administered; PBS group: PBS injection only after DT injury; R-iHeps group: R-iHeps injection after DT injury. Hoechst 33342 (blue) labels all nuclei. Scale bars in H&E staining picture: 100 um; scale bars in fluorescence pictures: 50 um. (b) R-iHeps (5X105 cells/100 ul) transplanted into /RJ mice via intrasplenic injection. /RJ mice were liver damaged by NTBC ((2-(2-nitro-4-trifluoromethylbenzoyl)-1,3-cyclohexanedione)) withdrawal 24 hrs before cell injection. PBS group: PBS injection only; R-iHeps group: R-iHeps injection; mPHs group: mouse primary hepatocytes (5X105 cells/100 ul) injection. Detection of FAH enzyme expression by immunoperoxidase staining at 3 weeks after transplantation. Scale bars: 100 um.
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