Without flow of information from protein to nucleic acid (opposite to the central dogma of life), it is really difficult to describe how our immune system function and long term memory form. This raise the above question in my mind.
I know the expression "back-translation" as far as translation beteween language is concerned. For example, to translate first a given scale from Portuguese to Chinese, and then from Chinese to Portuguese.
I do not think that it is possible to speak of "back-translation" in the human body, at least in the sense of back translation it terms of language.
This research article relates to your question, might be of interest.
Temporal reversion and the direction of physio-chemical processes touches the (re-) organization of living matter and energy transduction in living organisms.
In my opinion, the temporal aspect is paramount, with respect to the 'chemistry of living bodies as space'.