Sentences with phrase «normal chromosome ends»
Not exact matches
It is unclear how the entire body is affected because Spector looked only at telomeres, nucleotides on the ends of chromosomes that slowly erode as cells copy themselves during normal aging.
http://discovermagazine.com/
Scientists discovered that a particular class of normal breast precursor cells have extremely short chromosome ends (known as telomeres).
Their studies revealed that a subset of normal breast precursor cells, called luminal progenitors, have dangerously short telomeres and display a correspondingly high level DNA damage response localized at their chromosome ends.
When researchers took a close look at the cells of Dolly, the cloned sheep, they found that her telomeres, the caps on the ends of the chromosomes, were shorter than normal.
LA JOLLA, CA — Rapidly dividing cancer cells are skilled at patching up damage that would stop normal cells in their tracks, including wear and tear of telomeres, the protective caps at the end of each chromosome.
Scientists have glimpsed the three - dimensional structure of a protein that protects the ends of human chromosomes, a function that is essential for normal cell division and survival.
This exhaustion of proliferative potential, called senescence, can be triggered when telomeres — the ends of linear chromosomes - can not fulfil their normal protective functions.