[Inhibitory effect of recombinant HMGN2 protein on human hepatitis B viral].
Sichuan Da Xue Xue Bao Yi Xue Ban
; 42(4): 461-5, 2011 Jul.
Article
em Zh
| MEDLINE
| ID: mdl-21866626
ABSTRACT
OBJECTIVE:
To construct a prokaryotic expression recombinant for the expression of HMGN2 and to evaluate its antiviral activity against human hepatitis virus.METHODS:
The extracellular region cDNA of HMGN2 was isolated and amplified by RT-PCR, and introduced to the prokaryotic expression vector pGEX-4T-1. HMGN2 protein was expressed under IPTG induction and purified by GST protein purification system, then identified by SDS-PAGE and Western blot. The cytotoxicity of fusion HMGN2 to HBV-transfected HepG2. 2.15 cell was evaluated with MTT assay. Different concentration of fusion HMGN2 was applied on the HepG2. 2.15 cell and the cell culture supernatants were harvested after 3 and 6 days treatment. The HBsAg and HBeAg in the supernatants were detected by ELISA and the HBV DNA was detected by RT-PCR.RESULTS:
In the range of tested 1-100 microg/mL of HMGN2, no cytotoxicity to HepG2. 2.15 cells was detected by MTT assay. When incubated with HMGN2 at 15 microg/mL for 72 h or 144 h, there was a significant reduction in HBeAg and HBsAg expression as well as the HBV DNA copies.CONCLUSION:
pGEX-4T-1/HMGN2 vector was success constructed, and the recombinant HMGN2 protein could inhibit HBV expression and replication in vitro remarkably.
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Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
/
3_ND
Base de dados:
MEDLINE
Assunto principal:
Antivirais
/
Proteínas Recombinantes
/
Vírus da Hepatite B
/
Proteína HMGN2
/
Escherichia coli
Limite:
Humans
Idioma:
Zh
Revista:
Sichuan Da Xue Xue Bao Yi Xue Ban
Ano de publicação:
2011
Tipo de documento:
Article