Regulation and Function of miR-218 in Gastric Cancer Metastasis
Tie, Pan et al., PLoS Genetics
Researchers describe a negative feedback system between Robo1, a Slit receptor, and miR-218, wherein “decreased miR-218 levels eliminate Robo1 repression, which activates the Slit-Robo1 pathway through the interaction between Robo1 and Slit2, thus triggering tumor metastasis.” The authors suggest that the restoration of miR-218 supresses Robo1 espression and inhibits tumor cell invasion.
Quality, Not Quantity
The US may need to have "fewer but better" top research institutions, the president of the Association of American Universities, Robert Berdahl, says. In February, Berdahl wrote a letter to Senator Lamar Alexander (R-Tenn.), asking, among other things: "How many research universities does the United States realistically require in order to maintain its agenda of innovation and advanced training?" Alexander and three other members of Congress have now asked the National Academies this week "to study and report on the 'top 10 actions' that the government and research universities could take to maintain the quality of the universities and ensure the nation's economic growth," says the Chronicle of Higher Education.
