Related Experiment Video

Updated: May 20, 2026

In vivo Imaging Method to Distinguish Acute and Chronic Inflammation
07:10

In vivo Imaging Method to Distinguish Acute and Chronic Inflammation

Published on: August 16, 2013

Myeloperoxidase: a leukocyte-derived protagonist of inflammation and cardiovascular disease

Claudia Nussbaum1, Anna Klinke, Matti Adam

  • 1Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-University Munich, Munich, Germany. claudia.nussbaum@med.uni-muenchen.de

Antioxidants & Redox Signaling
|July 25, 2012
PubMed
Abstract

Insights

Myeloperoxidase (MPO), a neutrophil protein, plays a key role in inflammation and cardiovascular diseases. Understanding MPO

Area of Science:

  • Biochemistry
  • Immunology
  • Pathology

Background:

  • Myeloperoxidase (MPO) is a key bactericidal protein found in neutrophil azurophilic granules.
  • Extracellular MPO is detected in various acute and chronic inflammatory conditions.

Purpose of the Study:

  • To explore the role of MPO in inflammation and cardiovascular diseases.
  • To investigate MPO-derived oxidants and their impact on cell function and tissue injury.

Main Methods:

  • Literature review of recent advances in MPO research.
  • Analysis of MPO's catalytic and non-catalytic functions in inflammation.

Main Results:

  • MPO is a critical modulator of inflammation, implicated in cardiovascular disease initiation and progression.
  • MPO-derived oxidants, like hypochlorous acid, disrupt cellular functions and cause tissue damage.
  • MPO exhibits pro-inflammatory properties independent of its enzymatic activity.

Conclusions:

  • MPO is a significant factor in inflammatory processes and cardiovascular pathology.
  • MPO serves as a potential prognostic biomarker and therapeutic target for inflammatory diseases.
  • Further research is crucial to fully elucidate MPO's biological role in inflammation.

More Related Videos

Fast and Specific Assessment of the Halogenating Peroxidase Activity in Leukocyte-enriched Blood Samples05:17

Fast and Specific Assessment of the Halogenating Peroxidase Activity in Leukocyte-enriched Blood Samples

Published on: July 28, 2016

The Examination of Peroxidase-Positive Leukocytes in Semen04:36

The Examination of Peroxidase-Positive Leukocytes in Semen

Published on: January 19, 2024

Related Concept Videos

Inflammation01:38

Inflammation

Overview
Peroxisomes01:24

Peroxisomes

Peroxisomes are specialized organelles present in fungi, plant, and animal cells. It can vary in number, size, morphology, and activity depending on the type of tissue and the nutritional state of the cell. For example, cells with active lipid metabolism, such as adipocytes, neurons, and hepatocytes, have more peroxisomes than other cells in the body. Besides their primary role in breaking down complex organic molecules, peroxisomes can also synthesize specific macromolecules and participate in...
Acute Inflammation III: Local and Systemic Effects01:25

Acute Inflammation III: Local and Systemic Effects

Acute inflammation produces a coordinated set of local and systemic changes that limit injury, eliminate pathogens, and initiate repair. These responses arise within minutes of infection, trauma, or chemical insult and are driven by vascular alterations and leukocyte-derived mediators. When the stimulus resolves, the reaction typically abates within days.Local EffectsAt the site of injury, arteriolar vasodilation increases blood flow, resulting in redness and warmth. Simultaneously, increased...
Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
Acute Inflammation I: Inflammatory Response01:26

Acute Inflammation I: Inflammatory Response

Acute inflammation is a rapid, short-lived physiological response to tissue injury or infection, designed to eliminate harmful agents and initiate repair. This tightly regulated process typically lasts from minutes to several days and is triggered by factors such as microbial invasion, physical trauma, or chemical injury.Recognition and Mediator ReleaseThe inflammatory response begins when resident immune cells—such as mast cells, macrophages, and dendritic cells—detect damage-associated...
Inflammation: Introduction01:28

Inflammation: Introduction

Inflammation is a fundamental, protective biological response of vascularized tissues to cellular injury, infection, or harmful stimuli. Its primary function is to eliminate the initial cause of injury, clear necrotic cells and damaged tissue, and initiate the necessary repair processes.Cardinal SignsAcute inflammation presents with classic signs. Redness results from vasodilation and increased blood flow. Heat is due to increased metabolism and circulation. Swelling results from the...