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CFHR Gene Variations Provide Insights in the Pathogenesis of the Kidney Diseases Atypical Hemolytic Uremic Syndrome and C3 Glomerulopathy.


ABSTRACT: Sequence and copy number variations in the human CFHR-Factor H gene cluster comprising the complement genes CFHR1, CFHR2, CFHR3, CFHR4, CFHR5, and Factor H are linked to the human kidney diseases atypical hemolytic uremic syndrome (aHUS) and C3 glomerulopathy. Distinct genetic and chromosomal alterations, deletions, or duplications generate hybrid or mutant CFHR genes, as well as hybrid CFHR-Factor H genes, and alter the FHR and Factor H plasma repertoire. A clear association between the genetic modifications and the pathologic outcome is emerging: CFHR1, CFHR3, and Factor H gene alterations combined with intact CFHR2, CFHR4, and CFHR5 genes are reported in atypical hemolytic uremic syndrome. But alterations in each of the five CFHR genes in the context of an intact Factor H gene are described in C3 glomerulopathy. These genetic modifications influence complement function and the interplay of the five FHR proteins with each other and with Factor H. Understanding how mutant or hybrid FHR proteins, Factor H::FHR hybrid proteins, and altered Factor H, FHR plasma profiles cause pathology is of high interest for diagnosis and therapy.

SUBMITTER: Zipfel PF 

PROVIDER: S-EPMC7003313 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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<i>CFHR</i> Gene Variations Provide Insights in the Pathogenesis of the Kidney Diseases Atypical Hemolytic Uremic Syndrome and C3 Glomerulopathy.

Zipfel Peter F PF   Wiech Thorsten T   Stea Emma D ED   Skerka Christine C  

Journal of the American Society of Nephrology : JASN 20200124 2


Sequence and copy number variations in the human <i>CFHR-Factor H</i> gene cluster comprising the complement genes <i>CFHR1</i>, <i>CFHR2</i>, <i>CFHR3</i>, <i>CFHR4</i>, <i>CFHR5</i>, and <i>Factor H</i> are linked to the human kidney diseases atypical hemolytic uremic syndrome (aHUS) and C3 glomerulopathy. Distinct genetic and chromosomal alterations, deletions, or duplications generate hybrid or mutant <i>CFHR</i> genes, as well as hybrid <i>CFHR-Factor H</i> genes, and alter the FHR and Fact  ...[more]

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