Ants as possible drug factories for humans? | The Daily Star
12:00 AM, February 09, 2018 / LAST MODIFIED: 12:00 AM, February 09, 2018

Ants as possible drug factories for humans?

Ants naturally produce powerful germicides against bacteria and fungi, said a study Wednesday that targeted the industrious insects as possible drug factories for humans.

The discovery of ants' pharmaceutical prowess comes as the armoury of effective antibiotics developed by humans over the last 100 years dwindles in the face of growing germ resistance.

Experiments with 20 ant species found antimicrobials on 12 of them, a team reported in the Royal Society Open Science journal.

"This means ants are probably a good place to look if you want to discover new antimicrobial compounds," study co-author Clint Penick of the Arizona State University told AFP.

Ants produce the compounds in special glands often referred to as their "chemical factories".

"Ants coat their bodies with secretions from these glands, and some ants distribute these antimicrobials around their nests similar to how we would use antiseptic cleaners in our homes," said Penick.

The team tested the ant-manufactured chemicals on a usually harmless bacterium commonly found on human skin, Staphylococcus epidermidis.

Compounds produced by different species varied in their germ-killing effectiveness, the researchers found. The chemicals have yet to be tested on bacteria capable of causing human disease.

"It is important to note that there have been over 15,000 ant species described, and each species is likely to produce many different compounds that could have antimicrobial action," said Penick.

"We have taken the first steps to identify which ant lineages have the highest potential to produce antibiotics that work against human diseases, but there is much work left to identify the chemicals that work as antibiotics and to figure out how to synthesise them."

Insects which live in large, tightly-knit social groups -- ideal breeding grounds for disease -- have long been thought to be a promising source of new antibiotics, Penick said.

But until now, very few have actually been tested.

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