Four patients with common, variable agammaglobulinemia were preveiously reported to have normal numbers of circulating B lymphocytes which synthesized normal amounts of IgG in tissue culture but failed to secrete the newly synthesized IgG. The B lymphocytes of these patients fail to incorporate [3H]mannose and/or [3H]glucosamine into newly synthesized IgG, whereas such incorporation appears to occur just before IgG secretion in cultures of normal B lymphocytes.


F Ciccimarra, F S Rosen, E Schneeberger, E Merler


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