Triazolopyrimidines identified as reversible myeloperoxidase inhibitors

Franck Duclos1, Lynn M Abell1, David G Harden1

  • 1Bristol-Myers Squibb Company , P.O. Box 5400 , Princeton , New Jersey 08543-5400 , USA .

Medchemcomm
|August 16, 2018
PubMed

Insights

Researchers identified a reversible inhibitor for myeloperoxidase (MPO), an enzyme linked to chronic diseases. This discovery offers a potential new treatment strategy for conditions like atherosclerosis by targeting MPO activity.

Area of Science:

  • Biochemistry
  • Immunology
  • Pharmacology

Background:

  • Myeloperoxidase (MPO) is an immune enzyme producing hypochlorous acid.
  • Chronic MPO activity contributes to pathological diseases like atherosclerosis.
  • Targeting MPO offers a potential therapeutic strategy for chronic inflammatory conditions.

Purpose of the Study:

  • To identify a reversible inhibitor of myeloperoxidase (MPO).
  • To develop a high-throughput screening protocol for MPO inhibitors.
  • To explore potential treatments for MPO-associated chronic diseases.

Main Methods:

  • Developed a high-throughput screen and triaging protocol.
  • Identified and characterized a novel reversible MPO inhibitor.
  • Utilized biochemical assays to assess inhibitor efficacy.

Main Results:

  • Successfully identified a reversible inhibitor of myeloperoxidase.
  • The inhibitor is 7-(benzyloxy)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-5-amine.
  • Characterization confirmed the inhibitor's reversible binding to MPO.

Conclusions:

  • A novel reversible MPO inhibitor has been identified.
  • This compound represents a potential therapeutic agent for chronic diseases.
  • Further research may validate MPO inhibition for treating atherosclerosis and related conditions.

Related Concept Videos

Eukaryotic Transcription Inhibitors01:52

Eukaryotic Transcription Inhibitors

Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
Eukaryotic transcription inhibitors usually contain two distinct domains, a...
11.0K
Reversible and Irreversible Processes01:14

Reversible and Irreversible Processes

The thermodynamic processes can be classified into reversible and irreversible processes. The processes that can be restored to their initial state are called reversible processes. It is only possible if the process is in quasi-static equilibrium, i.e., it takes place in infinitesimally small steps, and the system remains at equilibrium However, these are ideal processes and do not occur naturally. An ideal system undergoing a reversible process is always in thermodynamic equilibrium within...
5.8K
Diode: Reverse bias01:14

Diode: Reverse bias

A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...
2.0K
Dipeptidyl Peptidase 4 Inhibitors01:23

Dipeptidyl Peptidase 4 Inhibitors

Dipeptidyl peptidase 4 (DPP-4) is a serine protease widely distributed in the body. It's involved in the inactivation of GLP-1 and GIP hormones, which are crucial for insulin regulation. DPP-4 inhibitors, such as sitagliptin (Januvia), saxagliptin (Onglyza), linagliptin (Tradjenta), alogliptin (Nesina), and vildagliptin (Galvus), help increase the proportion of active GLP-1, enhancing insulin secretion. These inhibitors work by competitively binding to DPP-4. This binding causes a...
685
Identifying Statistically Significant Differences: The F-Test01:14

Identifying Statistically Significant Differences: The F-Test

The F-test is used to compare two sample variances to each other or compare the sample variance to the population variance. It is used to decide whether an indeterminate error can explain the difference in their values. The underlying assumptions that allow the use of the F-test include the data set or sets are normally distributed, and the data sets are independent of each other. The test statistic F is calculated by dividing one variance by another. In other words, the square of one standard...
3.8K
Modeling of Diode Reverse Characteristics01:14

Modeling of Diode Reverse Characteristics

In electronic circuits, reverse-biased diode configurations are critical for regulating voltage levels. Zener diodes exploit the reverse breakdown phenomenon and exhibit a controlled breakdown at a specific Zener voltage (VZ). They are designed to maintain a constant voltage across their terminals and are commonly used for voltage regulation in circuits.
When a reverse voltage applied to a Zener diode exceeds its breakdown voltage, the diode enters the breakdown region. At this point, the...
626