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Measuring the 50% Haemolytic Complement CH50 Activity of Serum
Published on: March 29, 2010
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[The developoment of total complement activity assay based on complement-dependent immune liposome lysis].
Vestnik Rossiiskoi Akademii Meditsinskikh Nauk
|October 14, 2014
Summary
A new method rapidly measures total complement activity (TCA) in blood serum using liposomes. This technique offers a quick and reliable way to assess immune function in patients and research settings.
Area of Science:
- Immunology
- Biochemistry
Context:
- The complement system is crucial for innate and adaptive immunity.
- Accurate measurement of total complement activity (TCA) is vital for diagnosing and monitoring various diseases.
- Existing methods for TCA measurement can be time-consuming and complex.
Purpose:
- To develop a rapid, reproducible, and accurate method for measuring total complement activity (TCA) in human and animal blood serum.
- To utilize liposome-based immunolytic systems for TCA quantification.
Summary:
- Liposomes sensitized with 2,4-DNP haptens and containing fluorescent dyes (calceine or sulforhodamine 101) were developed.
- Complement-dependent immune lysis of these liposomes was investigated in the presence of anti-2,4-DNP immunoglobulins and complement preparations.
- The degree of liposome lysis demonstrated a concentration-dependent relationship with complement, suitable for TCA level determination.
Impact:
- The developed method allows TCA measurement in serum within 15 minutes without component separation.
- This rapid assay shows a strong correlation with traditional nephelometric analysis.
- The method has potential applications in clinical diagnostics for patients with various diseases and in scientific research.
