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Scientists zero
in on how lung cancer spreads
Date:
December 25, 2014
Source:
Cancer Research UK
Summary:
Scientists have taken
microscopic images revealing that the protein ties tethering cells together are
severed in lung cancer cells.
.......................
scientists have taken
microscopic images revealing that the protein ties tethering cells together are
severed in lung cancer cells -- meaning they can break loose and spread,
according to research published in Cell Reports December 24.
The researchers at the Cancer Research UK Manchester Institute discovered
that the ties which lash cells together -- controlled by a protein called TIAM1
-- are chopped up when cell maintenance work goes wrong.
Healthy cells routinely scrap old cell parts so they can be broken down and
used again. But this process spirals out of control in lung cancer cells, which
scrap too many TIAM1 ties**.
Targeting this recycling process could stop lung cancer from spreading by
keeping the cells stuck firmly together.
Lead researcher, Dr Angeliki Malliri, at the Cancer Research UK Manchester
Institute at the University of Manchester, said: "This important research
shows for the first time how lung cancer cells sever ties with their neighbours
and start to spread around the body, by hijacking the cells' recycling process
and sending it into overdrive. Targeting this flaw could help stop lung cancer
from spreading."
There are almost 43,500 new cases of lung cancer in the UK each year. It is
the most common cause of cancer deaths and kills more than 35,000 people in the
UK each year.
Nell Barrie, Cancer Research UK's senior science information manager, said:
"Lung cancer causes more than one in five of all cancer deaths in the UK
and it's vital that we find effective new treatments to fight the disease and
save more lives.
"Early-stage research like this is essential to find treatments which
could one day block cancer spread -- which would be a game changer. It's also
crucial that we find ways to diagnose the disease earlier, when treatment is
more likely to be successful and the cancer is less likely to have
spread."
The University of Manchester, including the Cancer Research UK Manchester
Institute, joined forces with Cancer Research UK and The Christie NHS
Foundation Trust to form the Manchester Cancer Research Centre, allowing
doctors and scientists to work closely together to turn scientific advances
into patient benefits sooner.
Story Source:
The above story is based on materials provided by Cancer Research UK. Note: Materials may be edited
for content and length.
Journal Reference:
1. Lynsey Vaughan, Chong-Teik Tan, Anna
Chapman, Daisuke Nonaka, Natalie A. Mack, Duncan Smith, Richard Booton,
Adam F.L. Hurlstone, Angeliki Malliri.HUWE1 Ubiquitylates and
Degrades the RAC Activator TIAM1 Promoting Cell-Cell Adhesion Disassembly,
Migration, and Invasion. Cell Reports, 2014; DOI: 10.1016/j.celrep.2014.12.012