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.
National Institutes of Health Library to Use Computable Genomix' GeneIndexer
Computable Genomix of Memphis, Tenn., said this week that the National Institutes of Health Library has bought a subscription to its online genomics research tool GeneIndexer.
No financial information was released.
The NIH Library purchased the GeneIndexer subscription as part of its "revamping of services focused on being an information commons," the company said.
As company executives explained to BioInform in October, GeneIndexer applies a technique called latent semantic indexing to extract gene associations from Medline abstracts. It applies a vector-space model to text-mining that represents documents with weighted index terms in a multidimensional space. LSI calculates the similarity between documents by capturing the spatial relationships between these terms [http://www.genomeweb.com/informatics/computable-genomix-wants-make-laten... ">BioInform, October 30, 2009].
Computable Genomix was founded in 2007 by computer scientist Michael Berry at the University of Tennessee and Ramin Homayouni, a biologist at the University of Memphis.
