Which major antigens are potential causes of acute poststreptococcal glomerulonephritis (APSGN)?

Updated: Dec 05, 2018
  • Author: Rajendra Bhimma, MBChB, MD, PhD, DCH (SA), FCP(Paeds)(SA), MMed(Natal); Chief Editor: Craig B Langman, MD  more...
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Answer

Two major antigens have presently been identified as the potential cause(s) of APSGN: A zymogen precursor of exotoxin B (SPEB [streptococcal pyrogenic toxin B]) or nephritis strain–associated protein (NSAP), and nephritis-associated plasmin receptor (NAPlr), a glycolytic enzyme, which has glyceraldehydes-3-phosphate dehydrogenase (GAPDH) activity with plasmin-binding capacity, a nephritogenic property that aids in circulating immune complex deposition. [8, 9, 10, 11, 12]


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