Which Receptors are Involved in the antidepressant effects of SSRIs?
You're right, those are all important! There are several good reviews on the mechanism of action antidepressants. I like Molecular Pharmacology, by Nestler, or even Principles of Neural Science, by Kandel. I think a textbook is going to be your best bet, in terms of getting up to speed here, as this is largely an already-researched issue, but here are some good review articles as well:


Bonhomme et al., 1988
Charney et al., 1981
Norbert &amp; Esposito, 1998
Spencer, 2012


If you have a more specific question, let me know!