Neopterin
Neopterin is a biomarker that plays a crucial role in the immune system and is often used in clinical settings to assess immune system activity. It is a pteridine derivative that is produced by human macrophages upon stimulation by interferon-gamma, which is a key cytokine involved in the immune response to infections and other challenges.
Function[edit | edit source]
Neopterin is produced by macrophages in response to various stimuli, particularly interferon-gamma. Its production is part of the body's immune response to infections, inflammatory conditions, and other challenges. Neopterin levels can therefore serve as a marker of immune system activation and inflammation.
Clinical Significance[edit | edit source]
Elevated levels of neopterin in the blood or other body fluids can indicate increased immune system activity. This can be seen in conditions such as infections, autoimmune diseases, and certain cancers. Monitoring neopterin levels can help in assessing the severity of these conditions and the response to treatment.
Diagnostic Use[edit | edit source]
Neopterin levels are often measured in clinical settings using specialized assays. The results can provide valuable information to healthcare providers about the status of a patient's immune system and the presence of underlying inflammatory processes. In some cases, monitoring neopterin levels over time can help in disease management and treatment decisions.
Research Applications[edit | edit source]
In addition to its clinical use, neopterin is also studied in research settings to better understand the immune response and its role in various diseases. Researchers investigate the relationship between neopterin levels and different conditions to identify potential biomarkers for early diagnosis or monitoring of disease progression.
References[edit | edit source]
1. Hengartner H, Zinkernagel RM. How do cytotoxic T lymphocytes kill their targets? Rev Immunogenet. 1987;1(1):33-59. PMID: 3500001. 2. Murr C, Widner B, Wirleitner B, Fuchs D. Neopterin as a marker for immune system activation. Curr Drug Metab. 2002 Feb;3(2):175-87. doi: 10.2174/1389200024605162. PMID: 12003359.
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