Myeloperoxidase Antibodies

What Is Myeloperoxidase?

Myeloperoxidase (MPO) is a peroxidase enzyme encoded by the MPO gene on chromosome 17 in humans. It is primarily found in neutrophils, a type of white blood cell, and plays a crucial role in the body's immune response by producing hypochlorous acid, which helps to kill bacteria and other pathogens.

MPO is stored in the azurophilic granules of neutrophils and is released during the process of degranulation.

Functions of Myeloperoxidase Antibodies in Research

• Biomarker identification: to identify and quantify MPO levels in biological samples. This helps in studying the correlation between MPO levels and various diseases, including cardiovascular diseases and chronic inflammatory conditions


• Therapeutic development: research with MPO antibodies can lead to the development of new therapies. By targeting MPO or its pathways, scientists aim to create treatments that reduce inflammation and prevent tissue damage in diseases like ANCA-associated vasculitis (AAV) and atherosclerosis


• Inflammation studies: can help researchers understand the role of MPO in inflammation. By blocking or enhancing MPO activity, they can observe the effects on inflammatory processes and tissue damage


• Disease modeling: used to create animal models of autoimmune diseases, such as multiple sclerosis (MS) or cancers such as multiple myeloma. By inducing an immune response against MPO, researchers can study the mechanisms of disease and test potential treatments


• Mechanistic insights: to provide insights into the non-canonical functions of MPO, such as its interactions with other immune cells and its role in cancer progression


• Immunoassays: employed in various immunoassays, such as ELISA, immunohistochemistry, western blotting, immunocytochemistry, and immunoprecipitation

Significance of MPO in Disease

• Cardiovascular health: elevated MPO levels are associated with an increased risk of cardiovascular diseases, including atherosclerosis and acute coronary syndromes. MPO is used as a biomarker to assess the risk of major adverse cardiac events


• Inflammation monitoring: MPO levels can indicate the extent of inflammation in the body, particularly in the arterial walls. This is useful for monitoring inflammatory conditions


• Diagnosis of autoimmune diseases: anti-MPO antibodies are used to diagnose ANCA-associated vasculitides, such as MPA and EGPA


• Monitoring disease activity: MPO levels and anti-MPO antibodies help monitor disease activity and treatment response in patients with ANCA-associated vasculitis

Anti-Myeloperoxidase Antibodies