ArticleIn vitro cellular & developmental biology. Animal2013
Derivation and characterization of goat fetal fibroblast cells induced with human telomerase reverse transcriptase.
Article in In vitro cellular & developmental biology. Animal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 6 citations in OpenAlex.
- Exosomes derived from bone marrow mesenchymal stem cells pre-treated with curcumin alleviate osteoporosis by promoting osteogenic differentiation via regulating the METTL3/microRNA-320/RUNX2 signaling pathway.Archives of medical science : AMS · 2026Article
- The proliferative lifespan of adult sheep fibroblasts can be conditionally extended by tetracycline-inducible expression of human telomerase reverse transcriptase.Cytotechnology · 2019Article
- Effects of long-term in vitro culturing of transgenic bovine donor fibroblasts on cell viability and in vitro developmental potential after nuclear transfer.In vitro cellular & developmental biology. Animal · 2013Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fetal fibroblast cells (FFCs) are often used as donor cells for somatic cell nuclear transfer (SCNT) because they are easy to culture and suitable for genetic manipulation. However, through genetic modification process, which required FFCs to be cultured in vitro for several passages, cells tended to age very rapidly and became inappropriate for SCNT. Human telomerase reverse transcriptase (hTERT) possessed the activity of human telomerase and maintains telomere in dividing cells; therefore, hTERT can be transfected into somatic cells to extend their lifespan. In this study, we transfected a Xinong Saanen Dairy Goat FFC line with hTERT. Then, we tested several characteristics of transfected cells, including growth curve, expression and activity of hTERT, tumorigenicity, and expression of oct4 and nanog. The result showed that hTERT could significantly extend the lifespan of transfected cells in vitro. hTERT mRNA was expressed in hTERT-transfected cells. Moreover, hTERT-transfected cells presented enhanced telomerase activity and longer telomere than untransfected cells at the same passage. On the other hand, hTERT-transfected cells can maintain normal karyotype even after several times of subculture in vitro. After inoculation of hTERT-transfected cells in nude mouse, none of them developed tumors on the vaccination site. Interestingly, transfection of hTERT can improve expression of nanog and oct4 in Xinong Saanen Dairy Goat FFCs, especially in low generation after transfection, but with increasing subculture, this effect gradually weakened.
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