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editorial
. 2024 Apr 11;15(5):569–570. doi: 10.1021/acsmedchemlett.4c00133

Novel Myeloperoxidase Inhibitors for Treating Multiple Diseases

Ram W Sabnis 1,*
PMCID: PMC11089653  PMID: 38746891

Abstract

graphic file with name ml4c00133_0001.jpg

Provided herein are novel myeloperoxidase inhibitors, pharmaceutical compositions, use of such compounds in treating inflammatory, cardiovascular, respiratory, renal, hepatic, and neurological diseases, cancer, and neutrophilic-driven diseases, and processes for preparing such compounds.

Important Compound Classes

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Title

Inhibitors of Myeloperoxidase

Patent Publication Number

WO 2024/038131 A1

URL: https://patents.google.com/patent/WO2024038131A1/en

Publication Date

February 22, 2024

Priority Application

US 63/398,939

Priority Date

August 18, 2022

Inventors

Inghardt, T.; Lindstedt, E.-L.; Jurva, U.; Selmi, N.

Assignee Company

AstraZeneca AB, Sweden

Disease Area

Inflammatory, cardiovascular, respiratory, renal, hepatic, and neurological diseases, cancer, and neutrophilic-driven diseases

Biological Target

Myeloperoxidase

Summary

Myeloperoxidase (MPO) is a heme-containing enzyme primarily expressed in neutrophilic granulocytes (neutrophils). MPO is one member of a diverse protein family of mammalian peroxidases that also includes eosinophil peroxidase (EPX), lactoperoxidase (LPO), thyroid peroxidase (TPO), and others. MPO is activated by hydrogen peroxide, the source of which can be superoxide dismutase (SOD)-catalyzed NADPH-derived superoxide anion and xanthine oxidase-derived superoxide anion and hydrogen peroxide formed upon purine oxidation.

By numbers, neutrophils are the dominating leukocyte population, representing a highly dynamic cellular population that is part of the first line of defense toward stressors, be they microbial or sterile triggers. Within neutrophils, preformed MPO is stored at millimolar concentration in granules, which fuse the phagosomes containing the engulfed microbial prey, causing activation of MPO and killing the microbe.

The present application describes a series of novel MPO inhibitors for the treatment of inflammatory, cardiovascular, respiratory, renal, hepatic, and neurological diseases, cancer, and neutrophilic-driven diseases. Further, the application discloses compounds, their preparation, use, and pharmaceutical composition, and treatment.

Definitions

X = CH or N; Y1 = CZ1 or N; Y2 = CZ2 or N; Y3 = CZ3 or N; Y4 = CZ4 or N; and Y5 = CZ5 or N.

Key Structures

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Biological Assay

The MPO enzymatic assay was performed. The compounds described in this application were tested for their ability to inhibit MPO. The MPO IC50 values (μM) are shown in the following table.

Biological Data

The table below shows representative compounds that were tested for MPO inhibition and the biological data obtained from testing representative examples.graphic file with name ml4c00133_0004.jpg

Claims

Total claims: 78

Compound claims: 69

Pharmaceutical composition claims: 2

Method of treatment claims: 7

Recent Review Articles

See refs (16).

The author declares no competing financial interest.

References

  1. Tran N. H.; Mosa F. E. S.; Barakat K.; El-Kadi A. O. S.; Whittal R.; Siraki A. G. Comparing the oxidative functions of neutrophil myeloperoxidase and cytochrome P450 enzymes in drug metabolism. Chem.-Biol. Interact. 2024, 392, 110942 10.1016/j.cbi.2024.110942. [DOI] [PubMed] [Google Scholar]
  2. Liblik K.; Zucker J.; Baranchuk A.; Fernandez A. L.; Zhang S.; El Diasti M.. The role of pericardial fluid biomarkers in predicting post-operative atrial fibrillation, a comprehensive review of current literature. Trends Cardiovasc. Med.. 2023, in press. 10.1016/j.tcm.2023.02.009 [DOI] [PubMed] [Google Scholar]
  3. Liu R.; Zhang J.; Lima F. R.; Zeng J.; Nian Q. Targeting neutrophil extracellular traps: A novel strategy in hematologic malignancies. Biomed. Pharmacother. 2024, 173, 116334 10.1016/j.biopha.2024.116334. [DOI] [PubMed] [Google Scholar]
  4. Lin W.; Chen H.; Chen X.; Guo C. The Roles of Neutrophil-Derived Myeloperoxidase (MPO) in Diseases: The New Progress. Antioxidants 2024, 13, 132. 10.3390/antiox13010132. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Yang X.; Ma Y.; Chen X.; Zhu J.; Xue W.; Ning K. Mechanisms of neutrophil extracellular trap in chronic inflammation of endothelium in atherosclerosis. Life Sci. 2023, 328, 121867 10.1016/j.lfs.2023.121867. [DOI] [PubMed] [Google Scholar]
  6. Xiang M.; Yin M.; Xie S.; Shi L.; Nie W.; Shi B.; Yu G. The molecular mechanism of neutrophil extracellular traps and its role in bone and joint disease. Heliyon 2023, 9, e22920 10.1016/j.heliyon.2023.e22920. [DOI] [PMC free article] [PubMed] [Google Scholar]

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