Dermal fibroblast altering their actin gene expression (which is silenced in dermal fibroblasts). When dermal fibroblasts express actin, the cells can slowly contract. This contraction plays a critical role in wound healing and fibrosis. By pulling tissues closed differentiated myofibroblasts, seal the skin after an injury (thereby, preventing infection but inducing scar formation. Myofibroblasts can also be derived from non-fibroblast sources. Based on evidence of α-SMA expression from lung injuries, myofibroblasts can "arise de novo" directly from mesenchymal stem cells. Unlike other fibroblast cell types, dermal fibroblasts are far less likely to change into other cell types. For example, when a dermal
What Kate Does the death of his love Juliet Burke (Elizabeth Mitchell) just hours earlier. In flash sideways to September 22, 2004, Kate assists a pregnant Claire Littleton (Emilie de Ravin) while on the run as a fugitive. The title alludes to the second season episode "What Kate Did". "What Kate Does" was watched by eleven million Americans and received mixed reviews by audiences and critics alike. In flash sideways, Kate Austen (Evangeline Lilly) flees LAX in a taxicab she has hijacked, in which a pregnant Claire Littleton (Emilie de Ravin) is a passenger. The cab driver (David H. Lawrence XVII) bails and