- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
"Alien" Sea Creature Sheds Light on Evolution of Immune System
29 May 2009 (All day)
The eel-like sea lamprey may not have as primitive an immune system as many scientists thought. In this week's issue of Nature, researchers report that the lamprey has two distinct classes of immune cells, with similar properties to the T and B cells at the heart of the so-called adaptive immune response in people. T and B cells are found only in jawed vertebrates such as humans, where they protect against harmful bacteria and other invaders. Yet, the lamprey is a jawless vertebrate and seems to have evolved its own defense strategies. Immunologists say the find could shed light on how the human immune system evolved in the first place.
Read the full story on Science's evolution blog, Origins.