Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019163 (hepatitis B)
 38,309 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We established a simple and efficient method for gene transfer in vitro (to cultured cells) and in vivo (to an adult organ) using liposomes. Plasmid DNA and proteins were efficiently co-encapsulated in liposomes by agitation and sonication, and were co-introduced into cells by hemagglutinating virus of Japan (HVJ)-mediated membrane fusion. Introduction of the Escherichia coli beta-galactosidase gene with non-histone chromosomal protein high mobility group 1 (HMG1) into LLCMK2 cells resulted in about 3 times higher beta-galactosidase activity than that on introduction of the gene alone. Two days after injection of HVJ-liposomes containing the beta-galactosidase gene and HMG1 under the perisplanchnic membrane of adult rat liver, hepatic cells near the injection site were found by 5-bromo-4-chloro-3-indolyl beta-D-galactoside staining to have beta-galactosidase activity. After similar injection of HVJ-liposomes containing the hepatitis B virus surface antigen (HBsAg) gene and HMG1, HBsAg was detected in the serum for 9 days with a maximum of 25-45 ng/ml on day 2 after the injection.
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PMID:Expression of hepatitis B virus surface antigen in adult rat liver. Co-introduction of DNA and nuclear protein by a simplified liposome method. 184 70

Hepatitis B virus (HBV) surface antigen (HBsAg) genes were injected directly into the liver of adult rats with non-histone chromosomal protein high mobility group 1 by the hemagglutinating B virus of Japan (Sendai virus)-liposome method (Kato, K., Nakanishi, M., Kaneda, Y., Uchida, T., and Okada, Y. (1991) J. Biol. Chem. 266, 3361-3364). Immunohistochemical analysis showed that HBV surface antigen was expressed by the hepatocytes in vivo. On successive injections of the HBsAg genes, the antibody to HBV surface polypeptides was produced in the rats, and characteristic pathological changes of lymphocytic focal necrosis and denaturation of hepatic cells were observed in the liver of all the rats. We conclude that hepatitis is caused by the direct injection of HBsAg genes.
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PMID:Direct injection of hepatitis B virus DNA into liver induced hepatitis in adult rats. 193 28