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Ciliated fibroblasts in mouse connective tissues: a comparison between methods for estimating their frequency.
S C P Barbosa1, J Merzel, P D Novaes
1Department of Morphology, Faculty of Odontology of Piracicaba, State University of Campinas (Unicamp), Piracicaba, SP, Brazil.
Journal of Submicroscopic Cytology and Pathology
|May 24, 2003
Summary
Ciliated fibroblasts are more common in mouse periodontal ligament than skin or gingiva. Periodontal tissues offer a valuable model for studying ciliation in vivo due to their organized structure.
Area of Science:
- Cell Biology
- Histology
Background:
- Ciliated fibroblasts are cells with hair-like appendages.
- Their presence and function in various connective tissues are not fully understood.
- Investigating ciliation in fibroblasts can provide insights into cellular processes.
Purpose of the Study:
- To quantify and compare the frequency of ciliated fibroblasts in different mouse tissues.
- To evaluate the suitability of periodontal tissues as a model for studying ciliation.
Main Methods:
- Estimation of ciliated fibroblast frequency using direct counting and probability-based methods.
- Transmission electron microscopy of ultra-thin sections of skin, gingiva, and periodontal ligaments (molar and incisor).
Main Results:
- Fibroblasts in molar and incisor periodontal ligaments showed a higher ciliation index compared to skin and gingiva fibroblasts.
- Observed differences may be influenced by the plane of sectioning and fibroblast arrangement.
- Periodontal fibroblasts, especially in incisors, exhibit regular arrangement.
Conclusions:
- Mouse periodontal tissues, particularly incisors, serve as a valuable in vivo model for studying ciliation.
- The regular arrangement of periodontal fibroblasts facilitates the detection of cilia and centriolar structures.
- Further research can leverage this model to understand ciliation dynamics and responses to manipulation.