Very little.

Here is a comment thread to a similar question in which /u/VexedCoffee gives a good answer: https://www.reddit.com/r/AskHistorians/comments/3bqsd7/how_did_the_orthodox_church_respond_to_the/

Here's a thread with my own answer to a similar question: https://www.reddit.com/r/AskHistorians/comments/1ym04m/to_what_extent_if_at_all_did_the_protestant/