The C-terminal pentapeptide of LHRH is a dominant B cell epitope with antigenic and biological function

Abstract

Luteinizing hormone releasing hormone (LHRH) has been intensively studied as a target for the control of fertility and hormone dependent cancers. In most studies a decapeptide, EHWSYGLRPG, which is identical to the native LHRH sequence, has been used. In this study we investigated whether short sequences of LHRH could retain immunogenic and antigenic properties and be employed in a vaccine preparation. Our results show that the C-terminal five-residue peptide (LHRH6-10) of LHRH was able to inhibit the binding of anti-LHRH1-10 antisera to LHRH1-10 in an inhibition ELISA. A totally synthetic peptide vaccine incorporating LHRH6-10 also elicited a strong anti-LHRH antibody response and prevented..