Hepatitis B surface antigen in hepatocellular carcinoma

Area of Science:

• Hepatology
• Oncology
• Virology

Background:

• Hepatitis B virus (HBV) infection is a major cause of chronic liver disease, cirrhosis, and hepatocellular carcinoma (HCC).
• Hepatitis B surface antigen (HBs-Ag) is a key serological marker of HBV infection.

Purpose of the Study:

• To investigate the histological detection and distribution of HBs-Ag in liver tissues from patients with liver cirrhosis and/or HCC.
• To compare the efficacy of different staining techniques in detecting HBs-Ag in cancerous and non-cancerous liver tissues.

Main Methods:

• Histological examination of liver tissues using victoria blue-nuclear fast red staining.
• Detection of HBs-Ag in both cancerous (hepatoma) and non-cancerous liver areas.
• Comparison with immunofluorescence technique using anti-HBs-Ag serum.

Main Results:

• HBs-Ag was detected in 20-40% of liver cirrhosis and/or HCC cases.
• In HCC cases, HBs-Ag was predominantly found in non-cancerous liver areas.
• HBs-Ag positive cells were also observed within cancerous areas, presumed to be residual infected non-cancerous cells.
• Inconsistencies in HBs-Ag detection between victoria blue staining and immunofluorescence were more frequent in cancerous areas.

Conclusions:

• HBs-Ag can be histologically identified in a significant proportion of liver cirrhosis and HCC cases.
• The distribution of HBs-Ag differs between cancerous and non-cancerous liver tissues.
• Discrepancies in detection methods highlight potential challenges in HBs-Ag assessment within HCC.