Atypical Hemolytic Uremic Syndrome Linked to a Hybrid Complement Gene
Author Information
Author(s): Julian P. Venables, Lisa Strain, Danny Routledge, David Bourn, Helen M. Powell, Paul Warwicker, Martha L. Diaz-Torres, Anne Sampson, Paul Mead, Michelle Webb, Yves Pirson, Michael S. Jackson, Anne Hughes, Katrina M. Wood, Judith A. Goodship, Timothy H. J. Goodship
Primary Institution: Institute of Human Genetics, University of Newcastle upon Tyne
Hypothesis
Could nonallelic homologous recombination between low-copy repeats in the RCA cluster result in the formation of a hybrid CFH/CFHL1 gene that predisposes to the development of aHUS?
Conclusion
The study found that a hybrid CFH/CFHL1 gene is associated with atypical hemolytic uremic syndrome, which may lead to high disease recurrence after kidney transplantation.
Supporting Evidence
- Sequence analysis showed a hybrid CFH/CFHL1 gene in affected individuals.
- The hybrid gene encodes a protein product identical to a known CFH mutant associated with aHUS.
- Patients with CFH mutations have a high risk of disease recurrence after kidney transplantation.
- Additional screening strategies are necessary to detect the hybrid gene in aHUS patients.
Takeaway
Researchers discovered a new gene that can cause kidney problems in some families. This gene can make it hard for people to get better after a kidney transplant.
Methodology
The study used cDNA analysis, gene sequencing, and Southern blotting to identify the hybrid gene in affected individuals.
Limitations
The study focused on a specific family and may not represent all cases of aHUS.
Participant Demographics
The study involved a family with multiple cases of aHUS, including affected and unaffected members.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website