This concept of organellar interaction is of course old, and even has been on my mind for decades. I have made many posts on the tethers seen between mitochondria and desmosomes and hope at some point to understand and diagram the relevant collection of outer and inner mitochondrial membrane proteins (black lines above the membranes show area in question) present at the points of attachments to the intermediate filaments (red line shows direction) of desmosomal mitochondrial tethering. Box in top figure is rotated and enlarged for inset. Rat #9, liver 5983,  BH