Characterization of extracellular matrix macromolecules in primary cultures of equine keratinocytes.
Authors: Visser Michelle B, Pollitt Christopher C
Journal: BMC veterinary research
Summary
# Editorial Summary Understanding how equine hoof lamellae maintain their structural integrity requires detailed knowledge of the extracellular matrix (ECM) proteins that hold these tissues together, yet research has been hampered by the lack of reliable methods for culturing keratinocytes from equine tissues. Visser and Pollitt refined cell isolation and culture protocols to successfully propagate equine lamellar keratinocytes over multiple passages, then characterised the production and processing of key ECM macromolecules—particularly laminins—by both skin and lamellar cells in vitro. This work established a reproducible model system for investigating how keratinocytes synthesise, deposit, and modify the proteins critical to lamellar adhesion and tissue resilience. The availability of authenticated equine lamellar keratinocyte cultures has direct implications for researchers investigating the molecular basis of laminitis, allowing investigation of how inflammatory mediators, metabolic disturbances, or mechanical stress alter ECM remodelling at the cellular level. For practitioners, this foundational research underpins our emerging understanding of why certain nutritional, farriery, and therapeutic interventions may support lamellar integrity and recovery following laminar compromise.
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Practical Takeaways
- •This research provides laboratory methods for studying hoof lamella tissue at the cellular level, enabling future investigations into what goes wrong during laminitis
- •Understanding how normal keratinocytes produce and maintain extracellular matrix is essential baseline knowledge before researchers can understand pathological changes in laminitis
- •These culture techniques open the door for testing potential therapeutic interventions on hoof tissue cells before clinical trials
Key Findings
- •Modified cell isolation and culture techniques successfully enabled prolonged propagation and sub-culturing of equine lamellar keratinocytes for the first time
- •Skin and lamellar keratinocytes demonstrated different production and processing patterns of extracellular matrix molecules in culture
- •Study established foundational in vitro methods for investigating laminin and extracellular matrix protein function in equine hoof tissues