Science News
from research organizations

Folding your genes: New discovery sheds light on disease risk

Date:
November 30, 2015
Source:
Manchester University
Summary:
New research has revealed how gaps between genes interact to influence the risk of acquiring diseases such as arthritis and type 1 diabetes.
Share:
FULL STORY

New research from The University of Manchester and the Brabraham Institute has revealed how gaps between genes interact to influence the risk of acquiring diseases such as arthritis and type 1 diabetes.

Writing in Nature Communications, the scientists show gap regions within the folds of DNA that have a crucial effect on turning genes on and controlling their expression, actually physically interact with genes not previously thought to be important in disease. Many of these genes are now thought to increase the risk of people developing diseases such as arthritis, psoriasis and type 1 diabetes.

Lead researcher Dr Stephen Eyre from The University of Manchester said: "It used to be the case that researchers would seek to identify a gene which caused a particular disease by a 'nearest gene' approach, to the gap regions.

"The reality is much more complex than that. Not only do the gaps between genes have an effect but, as we show in the new study, the gaps don't necessarily affect the nearest gene -- they can work over longer distances to turn distant genes on or off."

This process is caused by the folding of the two metre DNA to make it fit within a cell. This folding, brings gap regions close to the 'more important' regions, and therefore controls the levels of genes. In certain parts of the folded DNA, regions that increase risk to different diseases can 'meet' at the same gene.

The findings also open up the possibility that some genes may be increasing the risk of more than one disease, depending on how they are regulated by the gaps and from where in the DNA structure. This knowledge could lead to greater understanding of the diseases and insights into potential treatments.

The next steps in the research are to identify more of these complex interactions and in different types of cell in order to build a more complete picture of how genes and gaps interact to increase disease risk.

Dr Eyre added: "This research shows just how complicated the interactions within our cells are -- much more so than was previously thought. However, by gaining a better understanding of this process we open up many more possibilities for research into cures and treatments in the years ahead."

The research was funded through Arthritis Research UK and a Wellcome Trust Fellowship and has had support from The National Institute for Health Research (NIHR) Manchester Musculoskeletal Biomedical Research Unit. Researchers from the University of Cambridge and the Babraham Institute also contributed to the work.


Story Source:

Materials provided by Manchester University. Note: Content may be edited for style and length.


Journal Reference:

  1. Paul Martin, Amanda McGovern, Gisela Orozco, Kate Duffus, Annie Yarwood, Stefan Schoenfelder, Nicholas J. Cooper, Anne Barton, Chris Wallace, Peter Fraser, Jane Worthington, Steve Eyre. Capture Hi-C reveals novel candidate genes and complex long-range interactions with related autoimmune risk loci. Nature Communications, 2015; 6: 10069 DOI: 10.1038/ncomms10069

Cite This Page:

Manchester University. "Folding your genes: New discovery sheds light on disease risk." ScienceDaily. ScienceDaily, 30 November 2015. <www.sciencedaily.com/releases/2015/11/151130084522.htm>.
Manchester University. (2015, November 30). Folding your genes: New discovery sheds light on disease risk. ScienceDaily. Retrieved May 23, 2017 from www.sciencedaily.com/releases/2015/11/151130084522.htm
Manchester University. "Folding your genes: New discovery sheds light on disease risk." ScienceDaily. www.sciencedaily.com/releases/2015/11/151130084522.htm (accessed May 23, 2017).

RELATED STORIES