Background: The refolding of proteins from inclusion bodies is affected by several factors, including solubilization of inclusion bodies by denaturants, removal of the denaturant, and assistance of refolding by small molecule additives. Objectives: The purpose of this study was optimization of recombinant human interferon-b purification in order to achieve higher efficiency, yield, and a produ...

background three single nucleotide polymorphisms (snps) near interleukin-28b (il-28b) gene were shown to be highly associated with treatment response (svr) in patients with chronic hepatitis c virus (hcv) infection. there is limited data about the role of single and combined il-28b polymorphisms in hcv-infected polish population. objectives this study's aim was to determine predictability of th...

background: a dinucleotide variant rs368234815 in interferon lambda 4 (ifnl4) gene was recently found to be associated with the hepatitis c virus (hcv) treatment response. this study aimed to assess the impact of ifnl4 rs368234815 polymorphism on treatment response to pegylated?ifn alpha (peg?ifn??) and ribavirin (rbv) in hemophilic patients with chronic hepatitis c (chc). materials and methods...

objective: hla-g is a nonclassical major histocompatibility complex antigen and is expressed as seven isoforms, including four membrane bound (hla-g1 to –g4) and three soluble (hla-g5 to –g7) forms. the pattern of selective expression of hla-g transcripts in tissues shows the existence of a tight transcriptional control on the gene expression. it has been revealed that cytokines including inter...

Human Interferon β (INF-β) is a member of cytokines family which different studies have shown its immunomodulatory and antiviral activities. In this study an expression vector was designed and constructed for expression of human INF-β-1b either in shake flasks and bench top bioreactor. The designed vector was constructed based upon pET-25b(+) with T7 promoter. Recombinant human beta interferon ...

Human Interferon β (INF-β) is a member of cytokines family which different studies have shown its immunomodulatory and antiviral activities. In this study an expression vector was designed and constructed for expression of human INF-β-1b either in shake flasks and bench top bioreactor. The designed vector was constructed based upon pET-25b(+) with T7 promoter. Recombinant human beta interferon ...

Background:The premature termination of high producer clones, which will be killed due to cell proliferation and proteins production antagonism, is one of the basic drawback in recombinant proteins technology. Furtheremore, it is supposed some toxic proteins like interferon which we intended to clone and express, inhibit host cells’ proliferation. So, it is necessary to tightly control IFN-γ pr...