Gingival Fibroblasts Established on Microstructured Model Surfaces: Their Influence on Epithelial Morphogenesis and Other Tissue-specific Cell Functions in a Co-cultured Epithelium: an In-vitro Model
Overview
Affiliations
Objective: The objective of this study was to investigate how gingival fibroblasts cultured on microstructured model surfaces affect epithelial morphogenesis and other cell functions in a cocultured epithelium while conducting a molecular analysis of interactions between biomaterials employing periodontal tissue cells.
Materials And Methods: We are the first to have successfully co-cultured gingival fibroblasts together with gingival keratinocytes on biofunctionalized, microstructured model surfaces and, in the resulting co-cultured epithelium, examined the molecules of tissue homeostasis, the differentiation marker keratin (K) 1/10, and involucrin after 1- and 2-week periods of cultivation. Desmoplakin was perceived as evidence of cell-to-cell contact and thus as proof of epithelial integrity. We also analyzed the basement membrane component laminin-5. The aforementioned co-culture model without gingival fibroblasts was used as a control set-up.
Results: On the protein level, indirect immunofluorescence demonstrated the presence of K1/10, involucrin and the basement membrane component laminin-5 in the co-cultured epithelium in both culture periods. Furthermore, we observed that these epithelial markers had become re-oriented toward the suprabasal cell layers which, in turn, reflects the native in-vivo gingival epithelium. We identified cell-to-cell adhesion as a function of desmoplakin after just 1 week. In the mRNA analysis using quantitative RT-PCR after 2 weeks of cultivation, we noted a considerable rise in relative gene expression that was time-dependent for the early keratinocyte differentiation marker K1 and late marker involucrin.
Conclusions: Our findings demonstrate that gingival fibroblasts on microstructured model surfaces are vitally important for tissue- specific cell functions such as epithelial morphogenesis and other biological cell functions such as differentiation and epithelial integrity. These study findings can thus contribute to the optimization and/or new development of biomaterials currently used in dental medicine.
Suzumura T, Matsuura T, Komatsu K, Sugita Y, Maeda H, Ogawa T Cells. 2023; 12(21).
PMID: 37947620 PMC: 10647316. DOI: 10.3390/cells12212542.
A Temperature-Based Easy-Separable (TempEasy) 3D Hydrogel Coculture System.
Zhang Z, Chen W, Tiemessen D, Oosterwijk E, Kouwer P Adv Healthc Mater. 2022; 11(10):e2102389.
PMID: 35029325 PMC: 11469334. DOI: 10.1002/adhm.202102389.
Wang X, Steinberg T, Dieterle M, Ramminger I, Husari A, Tomakidi P Int J Mol Sci. 2021; 22(18).
PMID: 34575938 PMC: 8470904. DOI: 10.3390/ijms22189774.
Paulo S, Laranjo M, Abrantes A, Casalta-Lopes J, Santos K, Goncalves A Materials (Basel). 2019; 12(11).
PMID: 31174333 PMC: 6601279. DOI: 10.3390/ma12111840.
Bao K, Papadimitropoulos A, Akgul B, Belibasakis G, Bostanci N Virulence. 2015; 6(3):265-73.
PMID: 25587671 PMC: 4601317. DOI: 10.4161/21505594.2014.978721.