Investigators at Columbia University release new data on DNA research. Biotech Week | November 11, 2009 | COPYRIGHT 2009 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information) Copyright

"DNA interstrand crosslinks (ICLs) are the most toxic lesions induced by chemotherapeutic agents such as mitomycin C and cisplatin. By covalently linking both DNA strands, ICLs prevent DNA melting, transcription, and replication," scientists writing in the journal Molecular Cell report (see also DNA Research).

"Studies on ICL signaling and repair have been limited, because these drugs generate additional DNA lesions that trigger checkpoint signaling. Here, we monitor sensing, signaling from, and repairing of a single site-specific ICL in cell-free extract derived ...

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