I'm a computer scientist, so I don't have a lot of knowledge about biology. I developed a statistical method to highlight some genes from microarray dataset. Now, I'd like to know if the gene I selected are related to the microarray problem. That is, given a microarray dataset about Prostate Cancer (or Leukemia), I'd like to know if genes: X,Y,Z, etc. are already known to be related, in literature, with Prostate cancer. Is there any tool/website that could help me? Is there a way that, given a gene, I know all the disease associated to it? Or, in the other way around, what's the better method to get all the genes associated with a particular disease?
UPDATE:
I'd suggest an interesting tool that I've found: Diseases. It mines the literature to associate genes to diseases or viceversa.
Take a look at Where Can I Find Mutation Databases Specialized In Cancer? to a similar question.
This too Database of tumor suppressors and/or oncogenes