Response to Letter Regarding Article 'Transdifferentiation of Human Fibroblasts to Endothelial Cells: Role of Innate Immunity'

We thank Drs Li and Hao for their thoughtful comments on our recent article on the role of innate immunity in transdifferentiation of human fibroblasts to endothelial cells.1 They correctly state that the epigenetic landscape is different from one somatic cell to another and that the determinants of that epigenetic landscape (such as small RNAs, transcriptional factors, and chromatin modifiers) also differ from one somatic cell to another. Accordingly, they pose an excellent question: Because of the known differences between somatic cells in their epigenetic landscape and …