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Merck鈥檚 CHOZN® Expression System Selected for Antibody Development

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Merck鈥檚 CHOZN® Expression System Selected for Bi-specific Antibody Development by SystImmune
Accelerates development timelines with faster, easier selection and scale up of clones
Delivers higher titers of recombinant proteins
Darmstadt, Germany, May 16, 2017 鈥 Merck today announced that its CHOZN® expression system will be used by SystImmune, a Seattle-based biotechnology company, for commercial development of a bi-specific antibody therapeutic.
The CHOZN® expression system is designed to deliver manufacturing-ready robust and stable producing clones with a workflow that minimizes the resources needed to complete a cell line development project. As a result, users are able to quickly evaluate more molecules in their pipeline.

鈥淲hen compared with alternate expression systems, our CHOZN® system offers a turnkey solution that consistently delivers shortened development timelines,鈥 said Udit Batra, Member of the Merck Executive Board and CEO, Life Science.
Merck鈥檚 CHOZN® expression system is based on a GS -/- Chinese hamster ovary (CHO) cell line.
鈥淲ith only two scientists in our cell science department, we were able to generate more than 10 stable cell lines using this platform in a single year,鈥 said Camilla Wang, Scientist, SystImmune. 鈥淭he CHOZN® platform outperformed other systems in many ways. It is easy to use, requires less time to generate final single cell clones, and most of all, the expression level is consistently higher compared to the other approaches.鈥
Along with the CHOZN® cells, Merck provides an expression vector, extensive user protocols, a comprehensive cell line history document and paired cGMP media and feeds. Services are offered for cell line development in the CHOZN® expression system. Merck also offers gene engineering services using its CompoZr™ zinc finger nuclease technology to engineer CHO cell lines with characteristics attractive to biopharmaceutical developers and manufacturers, including resistance to Centinel™ technology.
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About Merck
Merck is a leading science and technology company in healthcare, life science and performance materials. Around 50,000 employees work to further develop technologies that improve and enhance life 鈥 from biopharmaceutical therapies to treat cancer or multiple sclerosis, cutting-edge systems for scientific research and production, to liquid crystals for smartphones and LCD televisions. In 2016, Merck generated sales of 鈧15 billion in 66 countries.
Founded in 1668, Merck is the world's oldest pharmaceutical and chemical company. The founding family remains the majority owner of the publicly listed corporate group. Merck holds the global rights to the 鈥淢erck鈥 name and brand. The only exceptions are the United States and Canada, where the company operates as EMD Serono, MilliporeSigma and EMD Performance Materials.
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