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Researchers capture 'most complete' picture of gene expression in cancer cell cycle
Date:3/6/2014

Uncontrolled cell growth and division is a hallmark of cancer. Now a research project led by the University of Dundee has provided the most complete description to date of the gene activity which takes place as human cells divide.

Researchers have managed to gather data which details the behaviour of protein molecules encoded by over 6000 genes in cancer cells, as they move through the cell cycle. The team has used advances in technology and data analysis to study how genes work over time in cancer cells, as opposed to capturing a `snapshot' of activity a leap forward they describe as akin to ` jumping from still photography to video'.

The new results from the Dundee team - carried out in collaboration with the Wellcome Trust Sanger Institute in Cambridge and the University of North Carolina - have been published in the prestigious international journal eLIFE.

Cells are extremely complex environments: at any one time, thousands of different genes are active as molecular templates to produce messenger RNA (mRNA) molecules, which themselves are templates used to produce proteins. However, not all genes are active at all times inside all cells. As cells grow and divide as part of the cell division cycle, genes are switched on and off on a regular basis. Similarly, the patterns of mRNA and protein production are different in, for example, immune system and skin cells.

"What we have been able to produce is a detailed analysis of protein activity in human cancer cells that exceeds what was previously possible," said the project leader Professor Angus Lamond, of the College of Life Sciences at Dundee. "It is essential to study how gene activity varies over time if we are to understand the complex processes in cancer cells, as the dynamic is changing all the time.

"Previously it has been possible to capture a time-averaged snapshot of this activity, but what we can now do is give a much fuller picture."

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Contact: Roddy Isles
r.isles@dundee.ac.uk
44-138-238-4910
University of Dundee
Source:Eurekalert  

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