Investigation of the active turn geometry for the labour delaying activity of indolizidinone and azapeptide modulators of the prostaglandin F2α receptor
the C-terminal reductase domain of MubD releases the lipohexapeptide intermediates in an aldehyde form, which enables a spontaneous C-C macrocyclization. In the presence of a thiol group, the macrocyclized MUBs can further undergo spontaneous C-S bond formation and C-Cbond cleavage to generate diverse MUB congeners.
[EN] FAP-ACTIVATED THERAPEUTIC AGENTS, AND USES RELATED THERETO<br/>[FR] AGENTS THÉRAPEUTIQUES ACTIVÉS PAR FAP, ET UTILISATIONS ASSOCIÉES
申请人:TUFTS COLLEGE
公开号:WO2015192123A1
公开(公告)日:2015-12-17
Disclosed are prodrugs of cytotoxic anthracyclines (such as doxorubicin) and other therapeutic agents that are selectively cleaved and activated by fibroblast activating protein (FAP). The prodrugs are useful for targeted delivery of cytotoxic and other agents to FAP- expressing tissues, including cancer (e.g., solid tumors). Also provided are pharmaceutical compounds comprising the prodrugs, as well as methods of using the prodrugs to treat a disorder characterized by FAP upregulation, e.g., cancer, fibrosis, and inflammation.
In order to investigate the structure-activity relationship of the “gratisin”-related peptide, cyclo(–Val–Orn–Leu–d-Phe–Pro–d-Tyr–)2 (GR-I), its two analogs, cyclo(–Val–Orn–Leu–d-Ala–Pro–d-Tyr–)2 (6a) and cyclo(–Val–Orn–Leu–d-Phe–Pro–d-Ala–)2 (6b), were synthesized. The CD spectra of these synthetic peptides in an aqueous solution were similar to that of GR-I, indicating that these peptides have similar conformations in an aqueous solution. The activity of 6b was half that of GR-I, whereas 6a did not show any antibiotic activity. These results indicated that the phenyl group of the d-Phe residue preceding the Pro residue is essential for exhibiting the activity, while the p-hydroxyphenyl group of the d-Tyr residue following the Pro residue is not essential.
FAP-Activated Proteasome Inhibitors for Treating Solid Tumors
申请人:Trustees of Tufts College
公开号:US20160346401A1
公开(公告)日:2016-12-01
Disclosed are proteasome inhibitors, fibroblast activation protein (FAP)-activated prodrugs of proteasome inhibitors, and pharmaceutically acceptable salts of the inhibitors and prodrugs. Also disclosed are related pharmaceutical compositions, and methods of using the inhibitors and prodrugs and compositions thereof, for example, in treating cancer or other cell proliferative diseases. In vitro and in vivo methods of quantifying the expression of FAP in a biopsy sample and a mammal, respectively, are also disclosed.
Certain N-carboxyalkyl prolyl-containing tripeptides have been prepared and found to improve kidney function. A species of the group of new compounds is N-(2-carboxyethyl)-L-prolyl-L-alanyl-L-proline which has diuretic activity and increases renal blood flow. The compounds are prepared by chemical reactions which couple an amino acid with a dipeptide.