» Articles » PMID: 2192932

Immunohistochemical Study of Pre-S(2) Antigen in Liver and Serum of Patients with Chronic Hepatitis B

Overview
Specialty Gastroenterology
Date 1990 Jun 1
PMID 2192932
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

To evaluate the significance of pre-S(2) in the liver, the authors studied the relationship between serum and intrahepatic pre-S(2) in 27 patients with chronic hepatitis B. Intrahepatic expression of pre-S(2) was observed under light and electron microscopy and compared with that of HBsAg and HBcAg. All patients were positive for hepatic pre-S(2), and 25 for serum pre-S(2). Intrahepatic pre-S(2) expression was membranous or both membranous and cytoplasmic in 18 cases and was cytoplasmic in 9. The serum levels of pre-S(2) were significantly higher in cases whose intrahepatic pre-S(2) was membranous than in the cytoplasmic cases. These findings indicate that membranous expression of pre-S(2) reflects its secretion into the circulation. Intrahepatic pre-S(2) expression was found almost completely to resemble that of HBsAg on both light and electron microscopy. Membranous pre-S(2) was seen in the liver of 16 of 25 cases who were positive for intrahepatic HBcAg. In detailed studies of membranous pre-S(2) and HBcAg, both membranous pre-S(2) and HBcAg appeared in the liver of all 7 cases before or at the peak of acute exacerbation, but after it, membranous pre-S(2) was not found in 4 of 8 cases. These results suggest that disappearance of membranous pre-S(2) and HBsAg may be related to hepatic cell necrosis in some cases with acute exacerbation.

References
1.
Milich D, Thornton G, Neurath A, Kent S, Michel M, Tiollais P . Enhanced immunogenicity of the pre-S region of hepatitis B surface antigen. Science. 1985; 228(4704):1195-9. DOI: 10.1126/science.2408336. View

2.
Heermann K, Goldmann U, Schwartz W, Seyffarth T, Baumgarten H, Gerlich W . Large surface proteins of hepatitis B virus containing the pre-s sequence. J Virol. 1984; 52(2):396-402. PMC: 254539. DOI: 10.1128/JVI.52.2.396-402.1984. View

3.
Imai M, Yanase Y, Nojiri T, Miyakawa Y, Mayumi M . A receptor for polymerized human and chimpanzee albumins on hepatitis B virus particles co-occurring with HBeAg. Gastroenterology. 1979; 76(2):242-7. View

4.
Machida A, Kishimoto S, Ohnuma H, Baba K, Ito Y, Miyamoto H . A polypeptide containing 55 amino acid residues coded by the pre-S region of hepatitis B virus deoxyribonucleic acid bears the receptor for polymerized human as well as chimpanzee albumins. Gastroenterology. 1984; 86(5 Pt 1):910-8. View

5.
Kurai K, Iino S, Koike K, Mitamura K, Endo Y, Oka H . Serum titers of pre-S(2) antigen in patients with acute and chronic type B hepatitis: relation to serum aminotransferase activity and other hepatitis B virus markers. Hepatology. 1989; 9(2):175-9. DOI: 10.1002/hep.1840090202. View