Matches in SemOpenAlex for { <https://semopenalex.org/work/W1994266478> ?p ?o ?g. }
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- W1994266478 startingPage "2046" @default.
- W1994266478 abstract "Recent evidence points to extra-telomeric, noncanonical roles for telomerase in regulating stem cell function. In this study, human embryonic stem cells (hESCs) were cultured in 20% or 2% O2 microenvironments for up to 5 days and evaluated for telomerase reverse transcriptase (TERT) expression and telomerase activity. Results showed increased cell survival and maintenance of the undifferentiated state with elevated levels of nuclear TERT in 2% O2-cultured hESCs despite no significant difference in telomerase activity compared with their high-O2-cultured counterparts. Pharmacological inhibition of telomerase activity using a synthetic tea catechin resulted in spontaneous hESC differentiation, while telomerase inhibition with a phosphorothioate oligonucleotide telomere mimic did not. Reverse transcription polymerase chain reaction (RT-PCR) analysis revealed variations in transcript levels of full-length and alternate splice variants of TERT in hESCs cultured under varying O2 atmospheres. Steric-blocking of Δα and Δβ hTERT splicing using morpholino oligonucleotides altered the hTERT splicing pattern and rapidly induced spontaneous hESC differentiation that appeared biased toward endomesodermal and neuroectodermal cell fates, respectively. Together, these results suggest that post-transcriptional regulation of TERT under varying O2 microenvironments may help regulate hESC survival, self-renewal, and differentiation capabilities through expression of extra-telomeric telomerase isoforms." @default.
- W1994266478 created "2016-06-24" @default.
- W1994266478 creator A5005210907 @default.
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- W1994266478 creator A5056683172 @default.
- W1994266478 creator A5063543170 @default.
- W1994266478 creator A5071432046 @default.
- W1994266478 date "2014-09-01" @default.
- W1994266478 modified "2023-09-25" @default.
- W1994266478 title "Microenvironmental Regulation of Telomerase Isoforms in Human Embryonic Stem Cells" @default.
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