Figure 2.

Possibilities of drug conjugates. A = antibody targets‐specific receptor (mentioned in table 1), B = radioactive isotope (mentioned in Table 2), C = chelating agent (DOTA, EDTA) D = cytotoxic drug (mentioned in Table 1), E = binds with a receptor (tamoxifen, endoxifen), F = regulates a signal pathway (anti‐NF‐КB, DNA intercalator), G = regulates an enzyme (kinase inhibitors, HDAC inhibitors), I = endogenous compound (melatonin), J = nanoparticle (gold). L = linker for conjugation (valine‐citrulline, hydrazine)