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Reconstituted human gingival epithelium: nonsubmerged in vitro model
A Delcourt-Huard1, A Corlu, A Joffre
1Equipe de Biologie Buccale, Université de Rennes, France.
In Vitro Cellular & Developmental Biology. Animal
|January 1, 1997
Summary
This study introduces an improved in vitro method for culturing oral gingival epithelial cells. The air-liquid interface culture system promotes advanced stratification and differentiation, mimicking in vivo gingiva for research and therapeutic applications.
Area of Science:
- Oral biology
- Tissue engineering
- Cell biology
Background:
- Human gingival keratinocytes in submerged culture exhibit suboptimal differentiation.
- Current in vitro models do not fully replicate the complex environment of gingival epithelium.
Purpose of the Study:
- To develop and evaluate an in vitro culture system for oral gingival epithelial cells using an air-liquid interface.
- To compare this novel system with traditional submerged culture methods.
Main Methods:
- Oral gingival epithelial cells were cultured at an air-liquid interface on polycarbonate inserts with NIH-3T3 feeder cells.
- This method was compared to submerged cultures on type 1 collagen gel and NIH-3T3 feeder layers.
- Transmission electron microscopy and immunofluorescence were used for analysis.
Main Results:
- Air-liquid interface cultures demonstrated advanced stratification (over six cell layers).
- Cytokeratins 10 and 11 were identified, indicating enhanced differentiation.
- The air-liquid interface model closely resembled in vivo gingival tissue.
Conclusions:
- The air-liquid interface culture system with NIH-3T3 feeder cells effectively promotes stratification and differentiation of gingival keratinocytes.
- This model offers a valuable tool for in vitro pharmacological and biocompatibility studies.
- It also holds potential for generating grafts for periodontal surgery.