Results 21 to 30 of about 75,693 (242)
Mechanism of immortalization [PDF]
Model systems implementing various approaches to immortalize cells have led toward further understanding of replicative senescence and carcinogenesis. Human diploid cells have a limited life span, termed replicative senescence. Because cells are terminally growth arrested during replicative senescence, it has been suggested that it acts as a tumor ...
K, Hubbard, H L, Ozer
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Background: Many human molecular and genetic studies require the use of a renewable biological material. Although primary fibroblast cell lines can be used for this purpose, there are disadvantages associated with human biopsies including the limited ...
Natalya A. Lemskaya
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The ruminal epithelium is continuously challenged by antigens released by the lysis of dead microbial cells within the rumen. However, the innate immune system of the ruminal epithelium can almost always actively respond to these challenges.
Chunlei Yang +4 more
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Cellular senescence or stemness: hypoxia flips the coin
Cellular senescence is a complex physiological state whose main feature is proliferative arrest. Cellular senescence can be considered the reverse of cell immortalization and continuous tumor growth.
Daniel Otero-Albiol, Amancio Carnero
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Human periodontal ligament fibroblast (hPLF) cells play an important role in maintaining oral cavity homeostasis with special function in tissue regeneration and maintenance of dental alveoli.
Lygia S. Nogueira +9 more
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RUNX-mediated growth arrest and senescence are attenuated by diverse mechanisms in cells expressing RUNX1 fusion oncoproteins [PDF]
RUNX gene over-expression inhibits growth of primary cells but transforms cells with tumor suppressor defects, consistent with reported associations with tumor progression.
Anderson, Gail +10 more
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Immortalization of T-cells is accompanied by gradual changes in CpG methylation resulting in a profile resembling a subset of T-cell leukemias [PDF]
We have previously described gene expression changes during spontaneous immortalization of T-cells, thereby identifying cellular processes important for cell growth crisis escape and unlimited proliferation. Here, we analyze the same model to investigate
Borssén, Magnus +10 more
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Reliable human erythroid progenitor cell (EPC) lines that can differentiate to the later stages of erythropoiesis are important cellular models for studying molecular mechanisms of human erythropoiesis in normal and pathological conditions.
Abhirup Bagchi +15 more
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Extra-telomeric functions of telomerase in the pathogenesis of Epstein-Barr virus-driven B-cell malignancies and potential therapeutic implications [PDF]
The Epstein-Barr virus (EBV) is a ubiquitous human \u3b3-herpesvirus causally linked to a broad spectrum of both lymphoid and epithelial malignancies.
Celeghin, Andrea +4 more
core +1 more source
Mortality and Immortality [PDF]
It has been known for centuries that the rich and famous have longer lives than the poor and ordinary. Causality, however, remains trenchantly debated. The ideal experiment would be one in which status and money could somehow be dropped upon a sub-sample of individuals while those in a control group received neither.
Rablen, Matthew D., Oswald, Andrew J.
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