Howl about it?
Mutant wolves roaming Chernobyl’s exclusion zone have developed a cancer-resistant genome that could be key to helping humans fight the deadly disease, a study says. .
Wildlife managed to adapt and survive the high levels of radiation that plagued the region after the Chernobyl nuclear power plant reactor exploded in 1986, making it the worst nuclear disaster in history.
After the explosion leaked carcinogenic radiation into the environment, humans abandoned the area and the 1,000 square mile area was cordoned off to prevent further human exposure.
However, in the approximately 38 years since the nuclear disaster, wildlife has reclaimed the area. This includes wolf packs that appear to be unaffected by chronic radiation exposure.
Kara Love, an evolutionary biologist and ecotoxicologist in the Shane Campbell Staton Laboratory at Princeton University, who studies how mutated wolves evolved to survive radioactive environments, has The research results were presented at the annual meeting of the Society for Integrative and Comparative Biology. Washington last month.
In 2014, Love and colleagues entered the Chernobyl exclusion zone and fitted wild wolves with GPS collars equipped with radiation dosimeters. They also took blood from the animals to understand their response to carcinogenic radiation. According to a release issued by the Society for Integrative and Comparative Biology..
Using special collars, researchers can measure in real time where wolves are and how much radiation they’re exposed to, Love said.
They learned that wolves are exposed to 11.28 millirem of radiation every day over their lifetime. This is more than six times her legal safety limit for humans.
The immune systems of Chernobyl wolves appear to be different from normal wolves and similar to those of cancer patients undergoing radiation therapy, researchers found. Dr. Love identified specific regions of the wolf genome that appear to be resistant to increased cancer risk, his statement said.
The study could be key to investigating how genetic mutations in humans can increase the odds of surviving cancer, and explores scenarios for many known cancer-causing genetic mutations, such as BRCA. It will turn over.
Chernobyl dogs, descendants of former residents’ pets, may have similar cancer resistance, although they have not been studied in the same way as their wild cousins.
Because dogs were in the area soon after the disaster struck, they adapted better than other species, such as birds, which experienced extreme genetic defects due to the effects of toxic radiation.
The discovery is especially valuable because scientists have learned that canids fight cancer in a way more similar to human cancer than lab rats.
Unfortunately, Love’s work has been cut short as she and her colleagues have been unable to return to the Chernobyl Exclusion Zone, first due to the COVID-19 pandemic and now the ongoing war between Russia and Ukraine. The department is stagnant.
