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Roche´s MagNA Pure LC 2.0 System for Monitoring DNA in Therapeutic Proteins and Monoclonal Antibody Drugs


News provided by

Roche Diagnostics GmbH

29 Feb, 2012, 13:00 GMT

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PENZBERG, Germany, February 29, 2012 /PRNewswire/ --

To ensure product safety, clearance of host-cell DNA is essential when manufacturing therapeutic proteins and monoclonal antibody (mAB) drugs. Using the MagNA Pure LC 2.0 System from Roche, scientists have developed and validated an automated process for monitoring clearance of Chinese hamster ovary (CHO) cell DNA during the capture and polishing steps when processing therapeutic proteins and mAB drugs (1).

Automated DNA monitoring during manufacturing eliminates the need to perform manual DNA extraction that can create analytics bottlenecks during process development and routine testing. Automated DNA isolation using Roche's MagNA Pure LC 2.0 System results in high DNA recovery rates and subsequent highly sensitive qPCR with the LightCycler® 480 Real-Time PCR Instrument. MagNA Pure LC DNA purification eliminates: (a) Manual dilution of high-protein and high-DNA loads; (b) Manual acidic sample neutralization; and (c) Manual carrier RNA addition.

Roche has produced validation data comparing DNA extraction of manufacturing samples spiked with CHO DNA using Roche's MagNA Pure LC 2.0 System and competitive instrumentation. In contrast to the other instrumentation, the MagNA Pure LC 2.0 System did not require manual sample preprocessing, additional proteinase K pretreatment, sample neutralization and dilution, or carrier RNA. The MagNA Pure LC DNA System isolation was shown to require less hands-on time for higher performance than the competitive instrumentation. These findings indicate that MagNA Pure LC 2.0 System automated sample preparation can be productively used to reduce analytics bottlenecks during in-process development and quality control of therapeutic proteins and mAB drugs.

  1. EuroBiotechNews No. 11-12, Vol. 10, 2011, pp. 60-62; see https://www.roche-applied-science.com/sis/automated/magna_lc/magna_lc_docs/MPLC_AN_4_Pharma.pdf

About Roche

Headquartered in Basel, Switzerland, Roche is a leader in research-focused healthcare with combined strengths in pharmaceuticals and diagnostics. Roche is the world's largest biotech company with truly differentiated medicines in oncology, virology, inflammation, metabolism and CNS. Roche is also the world leader in in-vitro diagnostics, tissue-based cancer diagnostics and a pioneer in diabetes management. Roche's personalized healthcare strategy aims at providing medicines and diagnostic tools that enable tangible improvements in the health, quality of life and survival of patients. In 2011, Roche had over 80,000 employees worldwide and invested over 8 billion Swiss francs in R&D. The Group posted sales of 42.5 billion Swiss francs. Genentech, United States, is a wholly owned member of the Roche Group. Roche has a majority stake in Chugai Pharmaceutical, Japan. For more information: http://www.roche.com.

All trademarks used or mentioned in this release are protected by law.

MAGNA PURE und LIGHTCYCLER are trademarks of Roche.

All other product names and trademarks are the property of their respective owners.

For further information please contact:

Roche Diagnostics
Dr. Burkhard Ziebolz
Phone: +49(0)8856-604830
Email: burkhard.ziebolz@roche.com

SOURCE Roche Diagnostics GmbH

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