Abstract
The naked mole rat is arguably the ugliest mammal in existence, but nature has been kind to it in other ways: Members of the species are extremely resistant to cancer and outlive other similar-sized rodents by decades. The rats can live 30 years, 10 times as long as mice of the same size. Now researchers led by the University of Rochester’s Vera Gorbunova have figured out at least one part of the naked mole rat’s elixir for cancer avoidance, which may inform anticancer strategies for humans (Nature 2013, DOI: 10.1038/nature12234). To squeeze through its underground tunnel habitat, the mole rat has extremely stretchy skin. The skin cells, Gorbunova and coworkers learned, produce long hyaluronan polymers that likely confer elasticity. Hyaluronans are polysaccharides found in many tissues, such as the skin and brain. The polymers produced by naked mole rats have extremely high molecular weights—five times larger than that of human ...
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