Co-expression and synergic effect of human complement regulatory proteins DAF and MCP / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 220-225, 2008.
Artigo
em Chinês
| WPRIM
| ID: wpr-276136
ABSTRACT
Recombinant expression vector pcDNA3-DAFMCP-DP containing human membrane complement regulatory proteins (hCRPs) decay accelerating factor (DAF) and membrane cofactor protein (MCP) cDNA was constructed by using two independent promoters. After transfected into NIH3T3 cells by calcium phosphate-DNA precipitate method, NIH3T3 pcDNA3-DAFMCP-DP transfectants were obtained by G418 selection. Extraneous genes integration was identified by PCR. The co-expression of human DAF and MCP at both mRNA and protein levels was confirmed by using RT-PCR and Western blot analysis. Human DAF and MCP cDNA were integrated into NIH3T3 pcDNA3-DAFMCP-DP genomic DNA after continuous 30 times passages, indicating that NIH3T3 pcDNA3-DAFMCP-DP were stable cell lines. Human C-mediated cytolysis assays showed that NIH3T3 cells transfected stably with pcDNA3-DAF, pcDNA3-MCP, and pcDNA3-DAFMCP-DP were protected from C-mediated damage and co-expressed human DAF and MCP provided more excellent protection against C-mediated attack, which was compared with either DAF or MCP alone. These results suggest that the dicistronic vector could improve the efficiency of multi-gene delivery and benefit the synergic effect of human membrane complement regulatory proteins DAF and MCP.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Farmacologia
/
Proteínas Recombinantes de Fusão
/
Transfecção
/
Células 3T3
/
DNA Complementar
/
Antígenos CD55
/
Sinergismo Farmacológico
/
Proteína Cofatora de Membrana
/
Genética
/
Rejeição de Enxerto
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
/
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Biotechnology
Ano de publicação:
2008
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS