Recently, Nedospasov and colleagues designed myeloid cell-specific TNF inhibitors (MYSTIs), which are recombinant mini-antibodies with dual specificity, that can bind to the surface molecule F4/80 or CD11b on myeloid cells and to solTNF and were found to be beneficial in in vivo models of acute hepatotoxicity and arthritis [47, 128]. The gene discussed is TNF; the disease is Arthritis.