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Challenges in diagnostic testing of nephritic factors
Marloes A H M Michels1, Elena B Volokhina1,2, Nicole C A J van de Kar1
1Department of Pediatric Nephrology, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, Netherlands.
Frontiers in Immunology
|December 1, 2022
Summary
Nephritic factors (NeFs) are autoantibodies that activate the complement system, often causing kidney disease. This review highlights challenges in NeF measurement and their clinical importance for diagnosis and therapy.
Area of Science:
- Immunology
- Nephrology
- Complement System Biology
Background:
- Nephritic factors (NeFs) are autoantibodies that enhance complement cascade enzymes.
- NeFs stabilize complement convertase complexes, preventing decay.
- They are linked to rare complement-mediated kidney disorders like C3 glomerulopathy.
Purpose of the Study:
- To review the diagnostic challenges of NeFs.
- To discuss NeF mechanisms, associated diseases, and detection methods.
- To emphasize the importance of NeF diagnostics for understanding disease and guiding therapy.
Main Methods:
- Review of existing literature on NeFs.
- Analysis of diagnostic methods for NeF detection.
- Discussion of standardization efforts in NeF measurement.
Main Results:
- NeF diagnostics remain challenging despite their long history.
- Diverse NeF types exhibit varied mechanisms of action.
- Standardization of NeF detection methods is ongoing.
Conclusions:
- Accurate NeF diagnostics are crucial for understanding their role in kidney disease pathophysiology.
- Improved NeF measurement can inform the development of targeted complement-directed therapies.
- Further research is needed to overcome diagnostic hurdles and clarify clinical associations.
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