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Identification of novel fibroblast-like cells from stem cells from human exfoliated deciduous teeth

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Abstract

Objectives

This study aimed to differentiate and characterize fibroblast-like cells from stem cells from human exfoliated deciduous teeth (SHED).

Materials and methods

The differentiation of fibroblast-like cells from SHED was carried out by using specific human recombinant connective tissue growth factor (CTGF). To characterize fibroblastic differentiation, the induced cells were subjected to morphological changes, proliferation rate, gene expression analysis using quantitative reverse transcription-polymerase chain reaction (qRT-PCR), flow cytometry, and immunofluorescence staining. The commercial primary human gingival fibroblasts served as positive control in this study.

Results

The results from characterization analysis were compared with that of commercial cells to ensure that the cells differentiated from SHED were fibroblast-like cells. The results showed the inductive effect of CTGF for fibroblastic differentiation in SHED. SHED-derived fibroblasts were successfully characterized despite having similar morphological appearance, i.e., (i) significant proliferation rate between fibroblast-like cells and SHED, (ii) high expression of fibroblast-associated markers in qRT-PCR analysis, and (iii) positive staining against collagen type 1, fibroblast-specific protein 1, and human thymic fibroblasts in flow cytometry analysis and immunofluorescence staining. The same expression patterns were found in primary human gingival fibroblasts, respectively. SHED as negative control showed lower expression or no signal, thus confirming the cells differentiated from SHED were fibroblast-like cells.

Conclusions

Taken together, the protocol adopted in this study suggests CTGF to be an appropriate inducer in the differentiation of SHED into fibroblast-like cells.

Clinical relevance

The fibroblast-like cells differentiated from SHED could be used in future in vitro and in vivo dental tissue regeneration studies as well as in clinical applications where these cells are needed.

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Funding

This paper was supported by Universiti Sains Malaysia Research University Grant (1001/PPSG/812168) and Malaysia Toray Science Foundation (MTSF) Research Grant (Toray Science Foundation, Japan) (304/PPSG/6150150/M126).

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Authors and Affiliations

  1. School of Dental Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia

    Nurul Hafizah Mohd Nor, Zurairah Berahim, Ahmad Azlina & Thirumulu Ponnuraj Kannan

  2. Human Genome Centre, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia

    Thirumulu Ponnuraj Kannan

Authors
  1. Nurul Hafizah Mohd Nor
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  2. Zurairah Berahim
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  3. Ahmad Azlina
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  4. Thirumulu Ponnuraj Kannan
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Correspondence to Zurairah Berahim.

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Mohd Nor, N.H., Berahim, Z., Azlina, A. et al. Identification of novel fibroblast-like cells from stem cells from human exfoliated deciduous teeth. Clin Oral Invest 23, 3959–3966 (2019). https://doi.org/10.1007/s00784-019-02827-x

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  • DOI: https://doi.org/10.1007/s00784-019-02827-x

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