Two-compartment model for rabbit skin organ culture

Area of Science:

• Dermatology
• Tissue Engineering
• In Vitro Models

Background:

• Developing reliable in vitro models for skin research is crucial.
• Existing models may not fully replicate the complex structure and function of intact skin.

Purpose of the Study:

• To establish and validate a new two-compartment organ culture system for rabbit skin.
• To assess the viability and structural integrity of cultured rabbit skin over time.
• To evaluate the suitability of this model for studying skin biology and toxicology.

Main Methods:

• Utilized a two-compartment model with a Millicell-HA insert for culturing rabbit skin discs.
• Maintained cultures in RPMI 1640 medium supplemented with fetal bovine serum or cofactors.
• Evaluated histomorphology, ultrastructure, keratinocyte proliferation, epidermal differentiation, and glucose consumption.

Main Results:

• Rabbit skin cultured for 7 days showed preserved histomorphology and ultrastructure, similar to fresh skin.
• Keratinocyte division and epidermal terminal differentiation (keratohyalin granules, stratum corneum, keratin expression) were maintained in vitro.
• Glucose consumption continued until day 7, after which degenerative changes and increased collagen fibril spacing were observed.

Conclusions:

• The developed two-compartment rabbit skin organ culture model is a viable system for up to 7 days.
• This model effectively preserves key aspects of skin structure and differentiation.
• It serves as a valuable tool for investigating biological processes, dermal toxicity, and xenobiotic metabolism in intact skin, as well as repair and regeneration mechanisms.