Alpha1-antitrypsin, protein marker in oral contraceptive-associated hepatic tumors.

Abstract:

:Tissue specimens from a series of 46 hepatic tumors occurring in young female oral contraceptive users were tested for alpha1-antitrypsin deposition, utilizing immunocytochemical and histochemical methods. In two instances serum alpha1-antitrypsin phenotyping was also performed. Immunoreactive alpha1-antitrypsin deposits were demonstrated in benign lesions, including 56% of cases of focal nodular hyperplasia and 68% of cases of liver-cell adenoma, and in 89% of cases of malignant hepatoma. There was good correlation between alpha1-antitrypsin deposits and variable amounts of finely granular, or globular, diastase-resistant periodic acid-Schiff positivity within tumor cells. While quantitative differences in alpha1-antitrypsin deposits between benign and malignant cell proliferations were not observed, a qualitative continuum that linked all tumors in the study group was found. The findings suggest that alpha1-antitrypsin deficiency is not related to the hepatic tumors developing in oral contraceptive users. The tumor tissue deposits of alpha1-antitrypsin observed represent a marker protein, the significance of which is undefined.

journal_name

Am J Clin Pathol

authors

Palmer PE,Christopherson WM,Wolfe HJ

doi

10.1093/ajcp/68.6.736

subject

Has Abstract

pub_date

1977-12-01 00:00:00

pages

736-9

issue

6

eissn

0002-9173

issn

1943-7722

journal_volume

68

pub_type

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