Synthesis and biological activities of new N-formylated methionyl peptides containing an α-substituted glycine residue
摘要:
Small molecular weight peptides related to the well-known chemotactic peptide N-alpha-formyl-methionyl-leucylphenylalanine have been prepared. These compounds were designed to evaluate the requirements in position 3 (phenylalanine). Each analogue containing an alpha-substituted glycine in position 3 was tested for its ability to induce lysosomal enzyme release from cytochalasin B treated human neutrophils. In addition, each analogue was also tested for its ability to antagonize superoxide generation. The results indicate that the analogue N-formyl-methionyl-leucyl-(alpha-anilino)glycine allyl ester is a potent antagonist of superoxide generation. Its ID50's suggest that this compound could be very promising in the field of anti-inflammatory drugs. A hypothetical inhibition mechanism is discussed.
Thiophenoxy peptides: A new class of HIV replication inhibitors
作者:Valérie Niddam、Michel Camplo、Dung Le Nguyen、Jean-Claude Chermann、Jean-Louis Kraus
DOI:10.1016/0960-894x(96)00085-6
日期:1996.3
A new series of modified peptides inhibitors of HIV is reported. These peptides utilize the isosteric substitution of a methylene group by a sulfur atom in a phenylalanine residue. Two thiophenoxy peptides 9 and 11 inhibit in vitro HIV-1 replication in MT(4) cells with IC50 values of 5 and 10 mu M respectively.