News
from the Royal Society of Biology:
A panel of expert speakers and delegates from
across the life sciences gathered as part of Biology
Week to debate how regulation and innovation can help tackle the
antimicrobial resistance crisis.
Professor Mark Fielder, an advisor for the
Clinical and Laboratory Sciences Institute and AMR expert, said in the USA up
to 70% of antibiotic consumption was non-human because the drugs increase
animal growth and meat yields by 10%.
“We have AMR moving between the animal and human
world and we don’t look at that enough. We need to take a ‘one health view’ –
think of the human, the environment and the animal, instead of thinking of them
separately.”
The use of antibiotics as growth promoters was
banned in the EU in 2006, but Professor Fielder said that the veterinary sector
was ‘not as tightly controlled’ as the human health and medicine sector because
practices are private. “Surveillance is expensive but it needs to happen to
keep a lid on this and keep that lid shut tight.”
John Broughall, from Antibiotic Research UK, explained how the Yorkshire-based charity is screening
old antibiotics and other compounds in the hope of finding ‘antibiotic
resistance breakers’ – drugs which can disrupt organisms’ resistance
mechanisms. This could lead to existing drugs being co-administered alongside
failing antibiotics to boost their efficacy, a potential solution which would
cost a fraction of the cost of developing a new antibiotic.
Tamar Ghosh, lead of the Longitude
Prize, explained how the £10m fund
will be awarded to scientists who within five years can develop a rapid,
affordable, point of care diagnostic to reduce overuse of antibiotics. Last
year the general public voted for the prize to focus on antimicrobial
resistance from six shortlisted challenges to humanity, and it has so far
attracted 205 teams from 39 countries.
“What’s great about those teams is that they are
not all led by who you’d expect,” said Ghosh. “They’re not all microbiologists
– there’s a great mix from industry, academia, people have come out of
retirement, people are resurrecting old ideas. They are forming new consortia
and new collaborations of engineers, chemists, physicists, social scientists.”
But Tamar Ghosh said that a diagnostic on its
own 'is not going to solve the problem if people are not aware of it, if we
don’t use the diagnostic collectively, and act on the result.'
The discussion moved between many related
topics, such as the availability of online antibiotics, the pressure on GPs to
prescribe antibiotics without proper diagnosis, the use of synthetic biology
and phage therapy in novel antibiotics, and the thorny issue of why developing
new antibiotics is not worth the investment for pharmaceutical companies.
“The payback period for an antibiotic is
something like 23 years,” said the debate’s chair, Professor Jeff Cole,
vice-president of the European
Federation of Biotechnology. “As the O’Neill
report concluded, you have to break the link between sales and
research and development – although he did not come up with a solution, other
than creating a global fund.”
The panel heard from the floor about how access
to antibiotics has been restricted with some success in countries like Norway.
But John Broughall made the point that many countries do not have the
infrastructure to govern the use of antibiotics. “We can do whatever we want
here but that resistance is only a six hour flight away,” he said.
Tamar Ghosh added the salient point that many
more people die from a lack of access to antibiotics than from resistance
issues, a factor which will undoubtedly make global cooperation on the issue
difficult.
Posted by Dr. Tim Sandle
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