Our study describes that one of those units actually has a function in that it enhances the activity of the telomerase gene."
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"These DNA sequences tend to be considered as 'junk DNA' or dark matters in our genome, and they are difficult to study.
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"Almost 50% of our genome consists of repetitive DNA that does not code for protein," Zhu said. Zhu said that his team's latest finding that VNTR2-1 helps to drive the activity of the telomerase gene is especially notable because of the type of DNA sequence it represents. That is why Zhu has focused the past 20 years of his career as a scientist solely on the study of this gene.
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Knowing how the telomerase gene is regulated and activated and why it is only active in certain types of cells could someday be the key to understanding how humans age, as well as how to stop the spread of cancer. This is essentially what restarts the aging clock in new offspring but is also the reason why cancer cells can continue to multiply and form tumors.
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However, in certain cell types-including reproductive cells and cancer cells-the activity of the telomerase gene ensures that telomeres are reset to the same length when DNA is copied. When telomeres get too short, cells can no longer reproduce, causing them to age and die. In normal cells, the length of telomeres gets a little bit shorter every time cells duplicate their DNA before they divide. The telomerase gene controls the activity of the telomerase enzyme, which helps produce telomeres, the caps at the end of each strand of DNA that protect the chromosomes within our cells. The study was published in the journal Proceedings of the National Academy of Sciences (PNAS). Findings from a new study led by researchers at Washington State University have solved a small piece of that puzzle, bringing scientists one step closer to solving the mystery of aging.Ī research team headed by Jiyue Zhu, a professor in the College of Pharmacy and Pharmaceutical Sciences, recently identified a DNA region known as VNTR2-1 that appears to drive the activity of the telomerase gene, which has been shown to prevent aging in certain types of cells. Scientists have long known that genes influence how cells age and how long humans live, but how that works exactly remains unclear. It ages as its cells age, which happens when those cells eventually stop replicating and dividing. Newswise - The human body is essentially made up of trillions of living cells. News Research News Releases Journal News Medical News Science News Life News Business News Expert Pitch Google Fact Check Research Alert Marketplace News With Video/Audio Multimedia RSS Feeds by
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