Placental alkaline phosphatase as a tumour marker in seminoma using the H17 E2 monoclonal antibody assay.
Serum samples from 62 patients with seminoma were assayed for placental alkaline phosphatase-like activity using the monoclonal antibody H17 E2, in order to evaluate its utility as a serum tumour marker. Fifteen of 16 patients (94%) with active seminoma had elevated serum PLAP levels. Sixteen of 46 (35%) of patients considered to be in remission had elevated PLAP levels (false positive rate 35%). Fifteen false positive results were considered attributable to concomitant smoking, and if these patients are excluded, only one false positive case was detected. In 7 out of 7 patients sequential PLAP assays reflected clinical response to treatment.
D000328:Adult; D000469:Alkaline Phosphatase / Q000097:blood*; D000911:Antibodies, Monoclonal; D006063:Chorionic Gonadotropin / Q000097:blood; D004407:Dysgerminoma / Q000097:blood / Q000201:enzymology*; D005189:False Positive Reactions; D006801:Humans; D007527:Isoenzymes / Q000097:blood*; D008297:Male; D010920:Placenta / Q000201:enzymology; D012907:Smoking
D000911:Antibodies, Monoclonal; D006063:Chorionic Gonadotropin; D007527:Isoenzymes; D000469:Alkaline Phosphatase