LONDON, Feb 24 (Reuters) - European shares were set to rise on Friday, mirroring gains on Wall Street and in Asia, with the European Central Bank's likely move to lend a huge amount to banks and recent positive data prompting investors to buy equities ahead of the weekend. The ECB will lend nearly half a trillion euros to banks at rock-bottom rates next week through its latest three-year refinancing operation, Reuters polls showed this week. "Greek issues seem to have taken a backseat