Hello, I'm looking for a tool (best if it's easy to use over the web), where I can provide a small set of genes (e.g. 10 HUGO gene names) and a keyword as input, and the output is a table of expression values of these genes for as many publicly available gene expression datasets as possible that are matching the keyword. For example, the keyword may be "replicative senescence".

I assume that not enough gene expression datasets are formally annotated by keywords, e.g. by using an experimental factor ontology, but maybe there is a resource which does that, but I'm not aware of it. It would be nice (but it's not a major thing) if microarray and RNA-Seq data can be separated; in the end I would want to inspect the details of the source gene expression datasets in a manual way anyway. Thanks for any hints georg