Investigations of the In-vitro Metabolism of Three Opioid Tetrapeptides by Pancreatic and Intestinal Enzymes
作者:Eva Krondahl、Hans Von Euler-Chelpin、Achim Orzechowski、Gunilla Ekström、Hans Lennernäs
DOI:10.1211/0022357001774642
日期:2010.2.18
, Tyr-D-Arg-Phe-Phe-NH2 and Tyr-D-Ala-Phe-Phe-NH2, was investigated in the presence of pure pancreatic enzymes (trypsin, chymotrypsin, elastase, carboxypeptidase A and carboxypeptidase B), as well as in the presence of pure carboxylesterase and aminopeptidase N. The cleavage patterns of the pure pancreatic enzymes were then compared with those found in rat and human jejunal fluid. Metabolism was also
Opioid Tripeptides Hybridized with <i>trans</i>
-1-Cinnamylpiperazine as Proliferation Inhibitors of Pancreatic Cancer Cells in Two- and Three-Dimensional in vitro Models
作者:Anna K. Laskowska、Anna K. Puszko、Piotr Sosnowski、Krzysztof Różycki、Piotr Kosson、Joanna Matalińska、Marek Durlik、Aleksandra Misicka
DOI:10.1002/cmdc.201700453
日期:2017.10.9
synthetic peptidomimetics containing an opioidtripeptide fragment (Tyr‐R1‐R2‐; where R1 is d‐Ala or d‐Thr, and R2 is Phe or Trp) hybridized with trans‐1‐cinnamylpiperazine. These compounds are stable in plasma up to 96 h and exhibit low hemotoxicity and good inhibitory effects on cancercell growth in two‐ and three‐dimensional in vitromodels of pancreaticcancer.