Life Technologies Assists in a Major Breakthrough in Transient Gene Expression

30 Nov 2010
Sarah Sarah
Marketing / Sales

Product news

Evitria SA has succeeded in obtaining titers exceeding 1 gram per liter in transient through using Life Technologies’ Invitrogen FreeStyle™ CHO-S Cells. Evitria’s rapid protein expression platform now allows companies to perform their in vitro and in vivo studies with protein transiently produced in the same host system as used later for production of stable cell lines.

Comments Dr. Sebastien Chenuet, Founder and Principal Investigator at evitria: “Today, CHO cells are the preferred host system for stable cell lines. Yet, many companies perform their initial in vitro and in vivo studies with protein transiently produced in HEK293 cells. We see the reason for that in the challenge to produce sufficient amounts of protein transiently in CHO cells. Going forward, evitria’s rapid protein expression platform will enable companies to perform their preclinical and clinical studies with the same host system. This is especially crucial in light of the extensive literature that stresses the importance of glycosylation on protein functionality.”

Comments Dr. Markus Hildinger, Founder and Principal Investigator at evitria: “We did it again! Building on my inventions from my sabbatical year at the École Polytechnique Fédérale de Lausanne (EPFL), we were able to extend 1 gram per liter titers in transient gene expression beyond HEK293 to CHO cells. This accomplishment positions evitria amongst the leading companies in the field of rapid protein expression and allows us to offer our customers milligram to gram quantities of protein at highly competitive prices starting as low as USD 300. Of course, we are also open to license evitria’s rapid protein expression platform to interested third parties.”

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ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.Cell Lines Stem Cells and Primary CellsPrimary cell cultures, established cell lines and stem cells are vital for <i>in vitro</i> and <i>ex vivo</i> experimentation. High-quality cells, optimized for your applications, alongside optimized cell substrates, growth medium and supplements, are critical for experimental success. Explore a range of cells suitable for your applications, including isogenic cell lines, competent cells, induced pluripotent stem cell (iPSC)-derived cell lines, fungal/bacterial/mammalian cell lines, stem cells and cancer cell lines. Find the best cells for your research in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.