I am going through a paper where they have done DNA-cellulose chromatography to study the interaction between protein and DNA. They are adding the protein to the column and eluting with high salt concentration.
The idea behind it is quite simple: you attach DNA to a cellulose matrix and keep conditions so that the DNA does not dissociate from the cellulose. This stationary phase is then used as a bait for DNA-binding proteins from the mobile phase. The purified DNA-binding proteins can subsequently be dissociated from the column with high salt concentrations.
The method was (as far as I know) first described by Litnam (1968) who used it to extract a DNA polymerase from Micrococcus luteus.