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© Research
Publication : The Journal of infectious diseases

Specific vaccine therapy in chronic hepatitis B: induction of T cell proliferative responses specific for envelope antigens

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in The Journal of infectious diseases - 01 Jul 1999

Couillin I, Pol S, Mancini M, Driss F, Bréchot C, Tiollais P, Michel ML

Link to Pubmed [PMID] – 10353856

J. Infect. Dis. 1999 Jul;180(1):15-26

In a pilot study, it was established that specific therapy by standard anti-hepatitis B virus (HBV) vaccination may be effective in reducing HBV replication and canceling the immune tolerance to hepatitis B surface antigen (HBsAg) particles in about 50% of persons with chronic active HBV replication. In the present study, the vaccine-induced immune responses were analyzed during an ongoing controlled multicenter vaccine trial. Vaccination elicited peripheral blood mononuclear cell proliferative responses specific for envelope antigen in 7 of 27 subjects given HBsAg. The responses induced by the vaccines were mediated by CD4+ T lymphocytes, and at least three different epitopes were recognized. HBV-specific CD4+ T lymphocytes produced high levels of interferon-gamma [corrected] and belonged to a T helper 1 subset. Reduction of serum HBV DNA in some of these persons suggests that induction of CD4+ T cell responses could be important in controlling viremia during vaccine therapy of chronic HBV carriers.

https://www.ncbi.nlm.nih.gov/pubmed/10353856