Here is what I could successfully compile from immediate memory Kelkel.
http://press.endocrine.org/doi/pdf/10.1210/edrv-9-2-181
Transcriptional regulation of androgen receptor gene expression in Sertoli cells and other cell types. - PubMed - NCBI
Androgenic up-regulation of androgen receptor cDNA expression in androgen-independent prostate cancer cells. - PubMed - NCBI
Transcriptional regulation of androgen receptor gene expression in Sertoli cells and other cell types. - PubMed - NCBI
My thoughts which are obviously stemmed from a textual basis and have very little correlation with the real world interactions just revolved around receptor saturation and its correlation with endocytosis. I'm still fairly novice in trying to understand the cellular actions and gene expressions that are associated with AAS usage.
Receptors for androgen-binding proteins: internalization and intracellular signalling. - PubMed - NCBI
repub.eur.nl/pub/8883/1334008.pdf
If you can't access these studies in full text I got them in PDF from school and I'm sure I can figure out some way of providing them. Obviously not concrete data for anything, but it's where I draw some thoughts from. I'm sure you can stab some holes in my logic and I am always up to learning! No direct citation because I really can't find anything that directly correlates to what these people are doing to themselves. I can find lots of studies correlating myocardium alterations from AAS usage.