The University of Sydney has recognised a new animal-free method for
testing chronic lung disease therapies by conferring its annual Award
for the Reduction in the Use of Animals in Research to medical
researcher, Dr Hui Xin Ong. Dr Ong will receive the award today
for building a simplified lung model that can tests new therapies for
diseases such as asthma, cystic fibrosis, emphysema and bronchitis,
without testing on animals. The Australian Code of Practice for
the Care and Use of Animals for Scientific Purposes requires that
techniques which replace the use of animals in research be sought and
used wherever possible.
Inhalation antibiotics have in recent
years emerged as the most effective way to treat respiratory illnesses
and are now a standard part of treatment for cystic fibrosis, a genetic
condition which causes recurring lung infections. But there is room for
improvement and this is where Dr Ong's research comes in.
Pulmonary
diseases would be more effectively treated by inhalation drugs
delivering higher levels of antibiotics and less frequent administration
than those currently on the market. Dr Ong's research centres on the
development of such drugs and she designed her lung model - the Calu-3
bronchial epithelium - to provide an effective mechanism to test her
developments.
Dr Ong completed her PhD developing and testing the
Calu-3 with therapies for cystic fibrosis and respiratory tract
infections. She found the Calu-3 was as effective at measuring the
efficacy of the drugs as testing on rats. Although further testing is
needed, Dr Ong says the Calu-3 has the potential to be the 'gold
standard for studies of how particulates interact in human airways'.
"I
was interested in marrying my background in pharmacy together with the
biological aspects of the research," she says of her doctoral research.
"Apart
from removing the obvious ethical issues related to the use of animals
in research, models like the Calu-3 offer simplicity, robustness and
better experimental control."
Dr Ong will be presented with her
award, and $4000 for the Department of Respiratory Technology at the
Woolcock Institute of Medical Research, by the University's Acting
Deputy Vice-Chancellor (Research) Professor Laurent Rivory who led the
panel judging the award.
"The selection panel agreed unanimously
that Dr Ong's application stood out both for its novelty and potential
for immediate impact on the reduction of in vivo (with live animals)
studies undertaken during the development stages of novel inhalable
formulations, resulting in vast cost savings," he said.