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Telomere length is different in different tissues and cell types of the body. [10] Developing a general telomere lengthening strategy that is effective in all tissues is a complex task; Also, understanding how different types of cells, organs and systems react to telomere manipulation is very important for developing safe and effective ...
Alternative Lengthening of Telomeres (also known as "ALT") is a telomerase-independent mechanism by which cancer cells avoid the degradation of telomeres.. At each end of the chromosomes of most eukaryotic cells, there is a telomere: a region of repetitive nucleotide sequences which protects the end of the chromosome from deterioration or from fusion with neighboring chromosomes.
Of the tumors without TERT activation, [49] most employ a separate pathway to maintain telomere length termed Alternative Lengthening of Telomeres (ALT). [50] The presence of this alternative pathway was first described in an SV40 virus-transformed human cell line, and based on the dynamics of the changes in telomere length, was proposed to ...
Researchers measured the length of each of the participants’ telomeres (protective DNA caps at the ends of chromosomes). Telomeres shorten with age, and the rate of shortening may indicate how ...
Although telomeres shorten during the lifetime of an individual, it is telomere shortening-rate rather than telomere length that is associated with the lifespan of a species. [32] Critically short telomeres trigger a DNA damage response and cellular senescence . [ 32 ]
They then used α factor to block cells with induced short telomeres in late G1 phase and measured the change in telomere length when the cells were released under a variety of conditions. They found that when the cells were released and concurrently treated with nocodazole , a G2/M phase cell cycle inhibitor, telomere length increased for the ...
Telomerase are found specifically to target shorter telomere over longer telomere, due to various regulatory mechanisms inside the cells that reduce the affinity of telomerase to longer telomeres. This preferential affinity maintains a balance within the cell such that the telomeres are of sufficient length for their function and yet, at the ...
Telomeres are caps at the ends of your chromosomes that protect against damage. As you age, your telomeres shorten. As you age, your telomeres shorten. Telomeres protect your cells and DNA from ...
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