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Updated: Apr 23, 2026

Chessboard-like Burn Wound Healing Model of Mice Based on Digital Heating Device
Published on: December 27, 2024
Development of experimental in vitro burn model
Ana Carolina Morais Fernandes1, Jerônimo Pereira de França2, Silvana Gaiba2
1Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Purpose:
To propose an experimental burn model in NIH-3T3 cell line.
Methods:
Induction of thermal injury in cultures of mouse fibroblast - NIH-3T3- cell line and determination of cell viability by MTT and immunofluorescence.
Results:
The heating of the Petri dish increased proportionally to the temperature of the base and the time of exposure to microwave. In this in vitro burn model, using the cell line NIH-3T3 was observed drastic cellular injury with significant changes in cell viability and activity. It showed drastically modified cell morphology with altered membrane, cytoskeleton and nucleus, and low cellularity compared to the control group.
Conclusion:
The burn model in vitro using the cell line NIH-3T3 was reproductive and efficient. This burn model was possible to determine significant changes in cell activity and decreased viability, with drastic change in morphology, cell lysis and death.

