Abstract
Somatic cell nuclear transfer (SCNT) and induced pluripotent stem cells (iPSCs) technology are two classical reprogramming methods. Donor cell types can affect the reprogramming results in the above two methods. We here used porcine embryonic fibroblasts (PEFs) and adult porcine ear skin fibroblasts (APEFs) and adipose-derived stem cells (ADSCs) as donor cells for SCNT and source cells for iPSCs to study their invitro developmental capability and colony-formation efficiency, respectively. For SCNT, fusion and cleavage rate has no significant difference among PEFs, ADSCs and APEFs. The rate and total cell number of blastocysts in the APEF group were significant lower than that in PEFs and ADSCs. For transcription factor-mediated reprogramming, the reprogramming efficiency of ADSCs were significantly higher than PEFs and APEFs and there is no significant difference between PEFs and APEFs. Furthermore, PEFs, APEFs and ADSCs can be used to generate iPSCs. Fianlly, somatic cloned pigs could still be successfully generated from APEFs, suggesting terminally differentiated aging adult somatic cells could be reprogrammed into a totipotent state. Considering the easy availability of animal tissue and the costs of establishing cell lines, aging porcine ear fibroblasts can support nuclear transfer-mediated and transcription factor-based reprogramming.
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