Partial C4 Deficiency in Subacute Sclerosing Panencephalitis
Overview
Genetics
Affiliations
In an immunogenetic study, 23 subacute sclerosing panencephalitis (SSPE) patients and their families were studied for the HLA region markers HLA-A, B, C, DR, BF, C2, C4A, C4B, GLO I, and PGM3. In addition, C3, C4, and factor B serum levels were determined. A highly significant association of C4A QO with SSPE was found. Furthermore, two rare haplotypes, C4A QOB QO, two C4ACh+ allotypes, and four Ch partial inhibitors were detected, which possibly impair the function of the C4 molecules. HLA-DR5 was increased. In addition, a number of rare HLA-A, C, B, DR haplotypes were observed. It is postulated that rare C4 molecular deficiency might be a predisposing factor in the pathogenesis of SSPE.
Liu T, Liu D, Mo C, Sun L, Liu X, Li W Am J Transl Res. 2016; 8(10):4250-4264.
PMID: 27830009 PMC: 5095318.
Immunoglobulins and complement factor C4 in adult rhinosinusitis.
Seppanen M, Suvilehto J, Lokki M, Notkola I, Jarvinen A, Jarva H Clin Exp Immunol. 2006; 145(2):219-27.
PMID: 16879240 PMC: 1809671. DOI: 10.1111/j.1365-2249.2006.03134.x.
Barba G, Rittner C, Schneider P J Clin Invest. 1993; 91(4):1681-6.
PMID: 8473511 PMC: 288147. DOI: 10.1172/JCI116377.
C4 uremic variant: an acquired C4 allotype.
Welch T, Beischel L Immunogenetics. 1985; 22(6):553-62.
PMID: 3865892 DOI: 10.1007/BF00430303.
Complement activation and complement receptors in systemic lupus erythematosus.
Atkinson J Springer Semin Immunopathol. 1986; 9(2-3):179-94.
PMID: 3544279 DOI: 10.1007/BF02099021.