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Inherited C8 Beta Subunit Deficiency in a Patient with Recurrent Meningococcal Infections: in Vivo Functional Kinetic Analysis of C8

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Date 1985 Apr 1
PMID 3924449
Citations 2
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Abstract

A 16 year old with recurrent meningococcal infections is reported. Absence of haemolytic activity in both the classical and alternative pathways resulted from an absence of functional C8. Addition of functional C8 restored hemolytic activity. Antigenically deficient C8 was present in the serum and isoelectric focusing of serum confirmed the absence of the C8 beta chain. Following the infusion of fresh frozen plasma, we followed the decay in C8 functional activity as well as total haemolytic activity. C8 activity peaked at about 3 h with a half-life survival estimated to be 28 h. The kinetics of total haemolytic activity showed a slower decay with an exponential decline over 72 h and a half-life of 55 h. Fresh frozen plasma may be of value in the treatment of patients with C8 deficiency and acute Neisserial infections.

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References
1.
Alper C, Propp R . Genetic polymorphism of the third component of human complement (C'3). J Clin Invest. 1968; 47(9):2181-91. PMC: 297379. DOI: 10.1172/JCI105904. View

2.
Alper C, Marcus D, Raum D, Petersen B, Spira T . Genetic polymorphism in C8 beta-chains. Evidence for two unlinked genetic loci for the eighth component of human complement (C8). J Clin Invest. 1983; 72(5):1526-31. PMC: 370440. DOI: 10.1172/JCI111111. View

3.
Platts-Mills T, Ishizaka K . Activation of the alternate pathway of human complements by rabbit cells. J Immunol. 1974; 113(1):348-58. View

4.
Gelfand E, Clarkson J, Minta J . Selective deficiency of the second component of complement in a patient with anaphylactoid purpura. Clin Immunol Immunopathol. 1975; 4(2):269-76. DOI: 10.1016/0090-1229(75)90062-8. View

5.
Petersen B, Graham J, Brooks G . Human deficiency of the eighth component of complement. The requirement of C8 for serum Neisseria gonorrhoeae bactericidal activity. J Clin Invest. 1976; 57(2):283-90. PMC: 436652. DOI: 10.1172/JCI108279. View