this paper reviews recent strategies used for increasing specific yield and productivity in high cell density cultures. high cell density cultures offer an efficient means for the economical production of recombinant proteins. however, there are still some challenges associated with high cell density cultivation (hcdc) techniques. a variety of strategies in several aspects including host design...

objective: the incidence of breast cancer is approximately one million which makes this cancer one of the most common among women worldwide. breast cancer comprises 7% of the total death rate caused by cancers. several strategies that use tumor-associated antigen (taa) vaccination and early detection of breast cancer are clinically being developed. breast cancer is caused by increased over expr...

conclusions the cell lines obtained in this work secreted potent, stable and specific anti-bv mabs, which were suitable for the development of herpes b virus diagnosis reagents. background herpes b virus (bv) is a zoonotic disease caused by double-stranded enveloped dna virus with cercopithecidae as its natural host. the mortality rate of infected people could be up to 70% with fatal encephalit...

background: the b-cell defect in x-linked agammaglobulinemia (xla) is caused by mutations in the gene for bruton's tyrosine kinase (btk). btk mutations result in deficient expression of btk protein in peripheral blood monocytes. methods: using the anti-btk monoclonal antibody (48-2h), a flow cytometric analysis of intra cytoplasmic btk protein expression in monocytes was performed to ident...

background: the fc receptor like (fcrl) molecules belong to the immunoglobulin (ig) superfamily with potentially immunoregulatoryfunction. among the fcrl family fcrl2 and 4 are predominantly expressed on memory b cells and fcrl1 is a pan- b cell marker. to date, noligand has been identifid for the human fcrl1, 2 and 4 molecules.objectives: cloning, expression, purifiation and structural analysi...

background: phic31 integrase system provides a new platform in various felid of research, mainly in gene therapy and creation of transgenic animals. this system enables integration of exogenous dna into preferred locations in mammalian genomes, which results in robust, long-term expression of the integrated transgene.objectives: identification of a novel pseudo attp site.materials and methods: ...

avian pathogenic e. coli (apec) is responsible for economic losses in all poultry farms. certain virulence factors have been proposed as a means of controlling apec infections, including some proteins to be used for vaccination. in the study we report here, one of the major virulence factors, the iss (increased serum survival) gene, from e. coli strain χ1378, isolated from poultry colibacillosi...

background : amelogenins are the major components of enamel matrix proteins. enamel matrix derivatives (emd) can be used in periodontal diseases to regenerate periodontal tissues. the main aim of this study was to evaluate ex-pression of full-length functional recombinant human amelogenin (rham) in iranian lizard leishmania (i.l.l.) as an alternative eukaryotic expression system. methods : huma...

viral protein-1 (vp1) is a major capsid protein of coxsakievirus b3 (cvb3) that plays an important role in directing viruses towards permissive cells and acts as a main antigenic site of the virus in eliciting of host immune response, hence it seems vp1 can be considered as a vaccine candidate against cvb3 infection. in this study, cdna of vp1 was prepared, cloned into pet expression vector and...

the green fluorescent protein (gfp) was originally isolated from the jellyfish aequorea victoria that fluoresces green when exposed to blue light. gfp protein is composed of 238 amino acids with the molecular mass of 26.9 kd. the gfp gene is frequently used in cellular and molecular biology as a reporter gene. to date, many bacterial, yeast , fungal, plants, fly and mammalian cells, including h...