Abstract:
:Derivation of cardiomyocytes directly from patients' own fibroblasts could offer a new therapeutic approach for those with ischemic heart disease. An essential step toward clinical application is to establish safe conversion of human fibroblasts into a cardiac fate. Here we aimed to efficiently and safely generate cardiomyocytes from human fibroblasts by direct delivery of reprogramming recombinant cell permeant form of reprogramming proteins followed by cardio-inductive signals. Human fetal and adult fibroblasts were transiently exposed to transactivator of transcription-fused recombinant OCT4, SOX2, KLF4 and c-MYC for 2 weeks and then were directly differentiated toward protein-induced cardiomyocyte-like cells (p-iCLCs) in a cardiac fate niche, carried out by treatment with a set of cardiogenic small molecules (sequential treatment of Chir, and IWP-2, SB431542 and purmorphamine). The cells showed cardiac phenotype over a period of 3 weeks without first undergoing reprogramming into or through a pluripotent intermediate, shown by lack of expression of key pluripotency markers. p-iCLCs exhibited cardiac features at both the gene and protein levels. Our study provides an alternative method for the generation of p-iCLCs which shortcut reprogramming toward allogeneic cardiomyocytes in a safe and efficient manner and could facilitate generation of genetic material-free cardiomyocytes.
journal_name
Mol Biotechnoljournal_title
Molecular biotechnologyauthors
Ghazizadeh Z,Rassouli H,Fonoudi H,Alikhani M,Talkhabi M,Darbandi-Azar A,Chen S,Baharvand H,Aghdami N,Salekdeh GHdoi
10.1007/s12033-017-0007-xsubject
Has Abstractpub_date
2017-06-01 00:00:00pages
207-220issue
6eissn
1073-6085issn
1559-0305pii
10.1007/s12033-017-0007-xjournal_volume
59pub_type
杂志文章abstract::Dye-based protein determination assays are widely used to estimate protein concentration, however various reports suggest that the response is dependent on the composition and sequence of the protein, limiting confidence in the resulting concentration estimates. In this study a diverse set of model proteins representi...
journal_title:Molecular biotechnology
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