Helical-Track Bioreactors for Bacterial, Mammalian and Insect Cell Cultures
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One of the major constraints to performing large-scale transfections of cultured mammalian cells for the transient expression of recombinant proteins is the production of large quantities of purified plasmid DNA. In this report partially purified plasmid D ...
Microinjection is a gene transfer technique enabling partial control of plasmid delivery into the nucleus or cytoplasm of cultured animal cells. Here this method was used to establish various recombinant mammalian cell lines. The injection volume was estim ...
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Transient gene expression (TGE) in mammalian cells at the reactor scale is becoming increasingly important for the rapid production of recombinant proteins. We improved a process for transient calcium phosphate-based transfection of HEK293-EBNA cells in a ...
Iron regulatory factor (IRF) is a cytoplasmic mRNA-binding protein that coordinates post-transcriptionally the expression of several important proteins in iron metabolism. Binding of IRF to iron-responsive elements (IRE) in the 5' untranslated region (UTR) ...
Plasmid DNA was originally produced in small amounts for genetic modification for protein production purposes. However since the rapid advances in gene therapy and DNA vaccines, plasmid DNA became a therapeutic product. The use of non-viral vectors for saf ...
Overexpression of the proto-oncogene c-myc has been implicated in the genesis of diverse human tumours. c-Myc seems to regulate diverse biological processes, but its role in tumorigenesis and normal physiology remains enigmatic. Here we report the generati ...
The purification to homogeneity of an active soluble 25 kDa fragment of CD23, produced in insect cells using the baculovirus expression system, is described. Peptide mapping and analysis by Edman degradation and mass spectrometry permitted partial characte ...
