Markedly Prolonged Incubation Period of Hepatitis B in a Chimpanzee Passively Immunized with a Human Monoclonal Antibody to the a Determinant of Hepatitis B Surface Antigen

The protective efficacy of a human monoclonal antibody directed against the a determinant of hepatitis B virus (HBV) surface antigen was studied in a chimpanzee. A single high dose of 5 mg/kg (body weight) of monoclonal antibody SDZ OST 577 was intravenously administered to a chimpanzee, followed by...

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Veröffentlicht in:Proceedings of the National Academy of Sciences - PNAS 1993-04, Vol.90 (7), p.3014-3018
Hauptverfasser: Ogata, Norio, Ostberg, Lars, Ehrlich, Paul H., Wong, Doris C., Miller, Roger H., Purcell, Robert H.
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container_issue 7
container_start_page 3014
container_title Proceedings of the National Academy of Sciences - PNAS
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creator Ogata, Norio
Ostberg, Lars
Ehrlich, Paul H.
Wong, Doris C.
Miller, Roger H.
Purcell, Robert H.
description The protective efficacy of a human monoclonal antibody directed against the a determinant of hepatitis B virus (HBV) surface antigen was studied in a chimpanzee. A single high dose of 5 mg/kg (body weight) of monoclonal antibody SDZ OST 577 was intravenously administered to a chimpanzee, followed by intravenous challenge with 103.5chimpanzee infectious doses of a wild-type HBV, the MS-2 strain (ayw subtype). The passively acquired antibody to HBV surface antigen could be detected for 40 weeks. Serum HBV DNA tested by a "nested" polymerase chain reaction assay was negative through the 36th week after virus challenge but became positive by the 38th week. The chimpanzee subsequently developed acute hepatitis B ≈ 1 year after challenge. The nucleotide sequence of the a determinant of the surface gene of the replicated virus was identical with that of the inoculated wild-type virus. Thus, a human monoclonal antibody directed against the a determinant of HBV surface antigen delayed but did not prevent experimental infection of HBV and hepatitis in the chimpanzee. Our results indicate an incomplete ability of this antibody to protect against HBV infection in vivo after a single infusion.
doi_str_mv 10.1073/pnas.90.7.3014
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A single high dose of 5 mg/kg (body weight) of monoclonal antibody SDZ OST 577 was intravenously administered to a chimpanzee, followed by intravenous challenge with 103.5chimpanzee infectious doses of a wild-type HBV, the MS-2 strain (ayw subtype). The passively acquired antibody to HBV surface antigen could be detected for 40 weeks. Serum HBV DNA tested by a "nested" polymerase chain reaction assay was negative through the 36th week after virus challenge but became positive by the 38th week. The chimpanzee subsequently developed acute hepatitis B ≈ 1 year after challenge. The nucleotide sequence of the a determinant of the surface gene of the replicated virus was identical with that of the inoculated wild-type virus. Thus, a human monoclonal antibody directed against the a determinant of HBV surface antigen delayed but did not prevent experimental infection of HBV and hepatitis in the chimpanzee. Our results indicate an incomplete ability of this antibody to protect against HBV infection in vivo after a single infusion.</abstract><cop>Washington, DC</cop><pub>National Academy of Sciences of the United States of America</pub><pmid>8464917</pmid><doi>10.1073/pnas.90.7.3014</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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subjects Amino Acid Sequence
Animals
Antibodies
Antibodies, Monoclonal - administration & dosage
Base Sequence
Biological and medical sciences
Chimpanzees
DNA
DNA, Viral - blood
DNA, Viral - genetics
DNA, Viral - isolation & purification
Dosage
Fundamental and applied biological sciences. Psychology
Hepatitis
Hepatitis antigens
Hepatitis B
Hepatitis B - blood
Hepatitis B - immunology
Hepatitis B - physiopathology
Hepatitis B Surface Antigens - immunology
Hepatitis B virus
Hepatitis B virus - genetics
Hepatitis B virus - isolation & purification
Humans
Immunization, Passive
Infections
Liver
Medical research
Microbiology
Molecular Sequence Data
Monkeys & apes
Monoclonal antibodies
Oligodeoxyribonucleotides
Pan troglodytes
Polymerase Chain Reaction - methods
Time Factors
Vaccines
Vaccines, antisera, therapeutical immunoglobulins and monoclonal antibodies
Virology
Viruses
title Markedly Prolonged Incubation Period of Hepatitis B in a Chimpanzee Passively Immunized with a Human Monoclonal Antibody to the a Determinant of Hepatitis B Surface Antigen
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