Apparently there's some recent interest in myokines and muscle endocrine function. Seems to be a lot of different signalling molecules, including interleukins, neurotrophic factors and anti-tumorigenic factors, which would help to explain some of the health benefits of exercise.
I thought to look into this a bit, and I decided to make this post to remind me of the topic
Here's one recent article I'm starting with:
http://www.ncbi.nlm....les/PMC4657151/
Summary image from the article:
Edited by proileri, 10 December 2015 - 11:33 PM.