Breakthrough research targets a crippling disease by developing new drugs to boost the body’s ability to create new blood vessels.

Affecting one-in-five Australians, and more than 230 million people globally, peripheral artery disease is a debilitating condition that reduces blood flow to the extremities. It can lead to limb amputation and premature death, with a limb lost to the condition in Australia every two hours.

New research is developing breakthrough therapies that target a recently-discovered protein, FK506-binding protein like (FKBPL), to restore the ability of blood vessels to form properly.

It is being led by a team from the University of Technology Sydney and in collaboration with Heart Research Institute, Royal Prince Alfred Hospital and University of Newcastle.

The team has been awarded $450,000 from Cardiovascular Research Capability Program of the NSW Government Office of Health and Medical Research to better understand how FKBPL works and can be targeted to treat peripheral arterial disease.

“Peripheral artery disease is very hard to treat. Most current therapies do not improve survival or quality of life of this crippling disease,” said the UTS team leader Associate Professor Lana McClements from the Cardio-Obstetrics Research Group.

“We identified FKBPL as playing a central role in regulating angiogenesis, the process where new blood vessels form from existing ones. If we can target this protein and use angiogenesis to restore the blood vessels in a stable manner, blood will flow better towards the extremities and we can prevent leg amputations.”

We want to target the root cause of peripheral artery disease using personalised medicine and taking into the account important sex differences

Associate Professor Lana McClements, Faculty of Science

Associate Professor Lana McClements

Working with scientists at the University of Newcastle, the team will modify a recently-developed drug to create a range of potential new therapies that target FKBPL and identify the most promising candidates.

“Because the therapeutic peptide drug based on FKBPL has already been used for cancer, we plan to modify it and make new peptides that can play a similar role by using polymeric and synthetic materials,” Associate Professor McClements said.

“This way we can improve the properties of drugs that are more efficient, last longer in the blood and potentially target specific mechanisms.”

The new therapies will then be tested using advanced 3D tissue engineering platforms, patient samples and in specific preclinical models.

These are the first steps towards developing drugs that can be progressed through pre-clinical and clinical trials, with the aim of having commercially available drugs available within the next decade.

The research will also seek to understand more about one of the mysteries of peripheral artery disease – why it disproportionately affects women and why they often have worse outcomes than men.

“We also want to understand the sex differences in how women respond to the treatment compared to male sex, and in the biological mechanism of the disease,” Associate Professor McClements said.

By exploring how FKBPL supports angiogenesis and healthy blood vessel growth, the team hope to gain insights into the treatment of other conditions such as preeclampsia, foetal growth restriction and heart disease.

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Lead researcher

Lana McClements

Associate Professor, Faculty of Science

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