Structurally Simple, Readily Available Peptidomimetic 1-Benzyl-5-methyl-4-( n-octylamino)pyrimidin-2(1 H)-one Exhibited Efficient Cardioprotection in a Myocardial Ischemia (MI) Mouse Model.
J Med Chem
; 61(24): 11309-11326, 2018 12 27.
Article
in En
| MEDLINE
| ID: mdl-30507195
ABSTRACT
TLR4, a member of the Toll-like receptor (TLR) family, serves as a pattern recognition receptor in the innate immune response to microbial pathogens. TLR4 also regulates the inflammatory reaction to ischemic injury in the heart. The TRIF-related adaptor molecule (TRAM) is an adapter that recruits the Toll/interleukin 1 receptor (TIR) domain, which contains adapter-inducing IFN-ß (TRIF), to activate TLR4, following TRIF-dependent cytokine gene transcription. On the basis of a known TRAM-derived decoy peptide, 10 of its peptidomimetics were synthesized. One of them, 1-benzyl-5-methyl-4-( n-octylamino)pyrimidin-2(1 H)-one (21), exhibited high potency and efficacy in vitro. In vitro results and in silico analysis provided evidence for the possible direct interaction of 21 with the TLR4 complex. Administered in mice, 21 was able to block the pathophysiological manifestation of MI, restoring the concomitant tissue damage, with a 100% survival rate. Thus, inhibition of TLR4-mediated inflammation in postischemic myocardium could be used as an approach for developing cardioprotective drugs.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pyrimidines
/
Cardiotonic Agents
/
Myocardial Ischemia
/
Toll-Like Receptor 4
/
Peptidomimetics
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
J Med Chem
Journal subject:
QUIMICA
Year:
2018
Document type:
Article