A groundbreaking genomic study on Greenland sharks has uncovered the secrets behind their remarkably long lifespan, which can span centuries without developing tumors. The research, while not yet peer-reviewed, holds promise for finding new cancer treatments and therapies to boost human lifespan.
The Greenland shark, a massive species that reaches lengths of over 20 feet and weighs up to 3,000 pounds, has been found to have an exceptional genetic mechanism that helps maintain its genome’s stability against damage. This, in turn, reduces the risk of cancer and other age-related diseases.
According to scientists, one reason for this paradox is the accumulation of DNA damage over time. However, Greenland sharks have developed enhanced mechanisms to repair and respond to this damage, including a robust immune defense system that protects them from infectious diseases and autoimmune issues.
The study also revealed clues to the shark’s adaptation to its slow-paced deep-sea environment. For example, researchers found that the shark’s eye protein has variations in amino acids that allow it to process blue-light wavelengths more efficiently, giving it an advantage in dim ocean waters.
While further research is needed, this genomic analysis provides new insights into the molecular basis of Greenland sharks’ exceptional longevity and highlights potential genetic mechanisms for future studies on human aging and cancer.
Source: https://uk.news.yahoo.com/scientists-finally-greenland-sharks-live-114707352.html