In this study, in order to facilitate and accelerate the production of eukaryotic protein alpha 1-antitrypsin (AAT) with correct post-translational modifications, a protein production system based on the transduction of CHO and COS-7 cells using lentiviral vectors was developed. Human AAT cDNA was cloned into a replication-defective lentiviral vector. The transgene AAT-Jred chimer was transferr...

Propranolol (PL), a non-selective beta-blocker, is a cardiovascular drug widely used to treat hypertension. The present study was concerned with assessing the cytogenetic effects of this drug on Chinese hamster ovary (CHO) cell line. MTT assay was then carried out to determine the cytotoxicity index (IC50) of the drug. The IC50 value of PL was 0.43±0.02 mM. To investigate the clastogenic effect...

Background: Natural medicines have been recently considered more reasonable for human use most notably due to their safety and tolerance. HESA-A is a marine-originated herbal medicine with a variety of healing effects. However, its exact biological mechanism is not clear. The pre-sent study aimed at the evaluation of the HESA-A antioxidant effect. Methods: Chinese hamster ovary (CHO) an...

background: the aim of this study was to produce a stable cho cell line expressing tenecteplase. materials and methods: in the first step, the tenecteplase coding sequence was cloned in a pdb2 vector containing attb recognition sites for the phage φc31 integrase. then, using lipofection, the cho cells were co-transfected with constructed recombinant plasmid encoding tenecteplase and attb recogn...

Background: Human chorionic gonadotropin (hCG) is a member of glycoprotein hormones family consist of two different non-covalently heterodimeric chains: alpha and beta subunits with 92 and 145 amino acids respectively. This hormone plays an important role in human reproduction and physiology especially for maintenance of the corpus luteum during the first months of pregnancy Materials and Metho...

Background Human coagulation factor IX is a 57kDa plasma serine protease made in Liver which plays a vital role in the blood coagulation cascade. FIX deficiency causes severe disorder Hemophilia B or Christmas disease. Nowadays, recombinant proteins have important roles in treatment of diseases. Although, cultivated mammalian cells because of their ability for producing properly folded protein ...

To investigate the effect of CD300LG-γ induction on the cytotoxic activity of CIK. Eukaryotic expression plasmid hCD300LG-γ/pEGFP-C3, which can express human CD300LG-γ, was constructed and transfected into CHO cells by lipofectamine. The expression of CD300LG-γ was confirmed by immunofluorescence, RT-PCR, and Western Blot. To produce CIK cells, human peripheral blood mononuclear cells (PBMC) we...

proteinase 3(pr3) is a human polymorphonuclear leukocyte serine proteinase and is the main target antigen for antineutrophil cytoplasmic antibodies (anca) found in wegener's granulomatosis (wg). we developed a stable expression system for conformationally intact recombinant pr3 (rpr3) in chinese hamster ovary cells (cho-cells). the part of pr3 cdna that encoded the active form of pr3 was s...