Results 11 to 20 of about 72,827 (301)

Is telomerase reactivation associated with the down-regulation of TGF β receptor-II expression in human breast cancer?

open access: yesCancer Cell International, 2003
Background Telomerase is a ribonucleoprotein that synthesizes telomeres and plays an important role in chromosomal stability and cellular immortalisation. Telomerase activity is detectable in most human cancers but not in normal somatic cells.
Thomas Valene   +3 more
doaj   +2 more sources

The mTOR pathway is necessary for survival of mice with short telomeres

open access: yesNature Communications, 2020
Telomerase deficiency leads to age-related diseases and shortened lifespan, while inhibition of the mTOR pathway delays aging. Here, the authors show that inhibition of mTORC1 signaling shortens the lifespan of telomerase deficient mice.
Iole Ferrara-Romeo   +10 more
doaj   +1 more source

The Unmasking of Telomerase [PDF]

open access: yesStructure, 2006
Telomerase is a ribonucleoprotein complex that reverse transcribes a portion of its RNA subunit during the synthesis of G-rich DNA at the 3' end of each chromosome in most eukaryotes. This activity compensates for the inability of the normal DNA replication machinery to fully replicate chromosome termini. The roles of telomerase in cellular immortality
Legassie, Jason D., Jarstfer, Michael B.
openaire   +2 more sources

TERRA regulate the transcriptional landscape of pluripotent cells through TRF1-dependent recruitment of PRC2

open access: yeseLife, 2019
The mechanisms that regulate pluripotency are still largely unknown. Here, we show that Telomere Repeat Binding Factor 1 (TRF1), a component of the shelterin complex, regulates the genome-wide binding of polycomb and polycomb H3K27me3 repressive marks to
Rosa María Marión   +7 more
doaj   +1 more source

Telomerase and cancer [PDF]

open access: yesTrends in Genetics, 1996
Telomerase, a eukaryotic ribonucleoprotein (RNP) complex, contains both an essential RNA and a protein reverse transcriptase subunit. By reverse transcription, the telomerase RNP maintains telomere length stability in almost all cancer cells. Over the past few years there has been significant progress in identifying the components of the telomerase ...
J W, Shay   +3 more
openaire   +2 more sources

Dynamic telomerase gene suppression via network effects of GSK3 inhibition [PDF]

open access: yes, 2009
<b>Background</b>: Telomerase controls telomere homeostasis and cell immortality and is a promising anti-cancer target, but few small molecule telomerase inhibitors have been developed. Reactivated transcription of the catalytic subunit hTERT
Jon Roffey   +42 more
core   +1 more source

Telomerase in the ovary [PDF]

open access: yesReproduction, 2010
Abstract Telomerase, an enzyme complex that binds the chromosome ends (telomeres) and maintains telomere length and integrity, is present in germ cells, proliferative granulosa cells, germline stem cells, and neoplastic cells in the ovary, but it is absent in differentiated or aged cells.
Jun-Ping, Liu, He, Li
openaire   +2 more sources

Multiomics identifies the link between intratumor steatosis and the exhausted tumor immune microenvironment in hepatocellular carcinoma

open access: yesHepatology, EarlyView., 2022
Steatotic HCC can be diagnosed by MRI and forms a pro‐tumor immune microenvironment with high expression of PD‐L1, M2 polarization of macrophages and activation of CAFs, which may be a good target for combined immunotherapy. Abstract Background and Aims Immunotherapy has become the standard‐of‐care treatment for hepatocellular carcinoma (HCC), but its ...
Hiroki Murai   +29 more
wiley   +1 more source

Molecular Interplay of PARN and Telomerase: Tail Modifiers and Disease Implications. [PDF]

open access: yesWiley Interdiscip Rev RNA
Schematic representation of the molecular interplay between PARN, telomerase‐associated, and the involvement of p53 in regulating telomere maintenance and genome stability. The top panel shows how normal PARN levels are involved in regulating p53 levels and balanced telomerase activity through their regulatory interaction with TERC and TERRA, thus ...
Felicitus S   +5 more
europepmc   +2 more sources

Telomerase structure

open access: yesCurrent Opinion in Structural Biology, 2014
The telomerase reverse transcriptase has an essential role in telomere maintenance and in cancer biology. Progress during the last year has revealed the three-dimensional architecture of both human and ciliate telomerase at about 25Å resolution, obtained using single particle electron microscopy (EM).
Sandin, Sara, Rhodes, Daniela
openaire   +2 more sources

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