Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-022-33148-5
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Funding
- National Health and Medical Research Council Development grant [1113736]
- National Health and Medical Research Council Peter Doherty-Australian Biomedical Fellowship [1073180]
- Raine Medical Research Foundation (Raine Priming Grant)
- Fiona Wood Foundation
- Stan Perron Charitable Foundation
- Perth Children's Hospital Foundation - Pharmaxis
- Pharmaxis
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Scarring is a lifelong consequence of skin injury. This study develops a topical drug that reduces collagen stability and improves scar appearance and stiffness in preclinical models.
Scarring is a lifelong consequence of skin injury, with scar stiffness and poor appearance presenting physical and psychological barriers to a return to normal life. Lysyl oxidases are a family of enzymes that play a critical role in scar formation and maintenance. Lysyl oxidases stabilize the main component of scar tissue, collagen, and drive scar stiffness and appearance. Here we describe the development and characterisation of an irreversible lysyl oxidase inhibitor, PXS-6302. PXS-6302 is ideally suited for skin treatment, readily penetrating the skin when applied as a cream and abolishing lysyl oxidase activity. In murine models of injury and fibrosis, topical application reduces collagen deposition and cross-linking. Topical application of PXS-6302 after injury also significantly improves scar appearance without reducing tissue strength in porcine injury models. PXS-6302 therefore represents a promising therapeutic to ameliorate scar formation, with potentially broader applications in other fibrotic diseases. Scars are a significant problem caused by excess collagen in the skin. Here the authors develop a topical drug that reduces collagen stability and leads to improved scar appearance and stiffness in preclinical models.
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