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Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39:360-370.

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Presentation on theme: "Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39:360-370."— Presentation transcript:

1 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 1. Characterization of follicular ORS cells. ORS cells were prepared from the hair follicles of 4-month old American minks, and cultured in vitro. The third-generation ORS cells were characterized by (A) immunofluorescence staining (40× magnification) and (B) immunocytochemistry (40× magnification) for the expression of CK19. Negative control staining was performed by replacing anti-CK19 antibody with PBS during the incubation with primary antibody. © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

2 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 2. EGF promotes proliferation and migration of ORS cells. (A) ORS cells were treated with 25 ng/ml, 50 ng/ml and 100 ng/ml EGF, and cell proliferation was measured by MTT assay. (B) The effect of EGF on the migration of ORS cells was assessed by matrigel-free transwell assay. The values are expressed as means ± SD of three independent experiments. Compared with the untreated cells, ** p < 0.01, *** p < © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

3 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 3. Overexpression of EGF promotes proliferation and migration of ORS cells. ORS cells were transfected with EGF overexpression plasmids (EGF O/E) or the empty vector. (A) The level of EGF mRNA was determined by real-time PCR. (B) The level of EGF protein was examined by Western blotting. (C) Densitometric analysis of the Western blots. (D) Proliferation of the EGF O/E-transfected ORS cells and the control cells was assessed by MTT assay. (E) Migration of the transfected ORS cells was measured by transwell assay. The values are expressed as means ± SD. Compared with the control cells, * p < 0.05, *** p < © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

4 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 4. Prolonged EGF treatment and EGF overexpression upregulates the expression of EGFR and SOX9. (A) The mRNA and (B) protein levels of EGF in the ORS cells that were treated with the indicated concentration of EGF or transfected with EGF O/E plasmids. (C) The mRNA and (D) protein levels of SOX9 in the ORS cells with EGF treatment or EGF overexpression. The values are expressed as means ± SD of three independent experiments. Compared with the control cells, * p < 0.05, ** p < 0.01, *** p < © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

5 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 5. XAV-939 inhibits EGF-induced activation of Wnt/β-catenin signaling pathway. (A) Nuclear translocation of β-catenin in the ORS cells with EGF treatment or overexpression of EGF was assessed by immunofluorescent staining (400× magnification, scale = 50 μm). (B) Western blot analysis was performed to examine the levels of nuclear and cytosolic β-catenin, as well as the expression of Wnt10b in the ORS cells. (C) The level of β-catenin in the nucleus of ORS cells with EGF stimulation and/or XAV-939 treatment was examined by Western blotting. (D) Transcription of β-catenin in the ORS cells with EGF stimulation and/or XAV-939 treatment was measured by real-time PCR. The values are expressed as means ± SD of three independent experiments. Compared with the control cells, ** p < 0.01, *** p < 0.001; with versus without XAV-939, #p < 0.05, ##p < 0.01. © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

6 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 6. Inhibition of Wnt/β-catenin signaling suppresses proliferation and migration of ORS cell. (A) MTT assay were performed to assess the proliferation of the ORS cells with EGF stimulation and/or XAV-939 treatment. (B) Cell migration was measured by transwell assay. The values are expressed as means ± SD of three independent experiments; *** p < © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

7 Epidermal Growth Factor Promotes Proliferation and Migration of Follicular Outer Root Sheath Cells via Wnt/β-Catenin Signaling Cell Physiol Biochem 2016;39: DOI: / Fig. 7. EGF upregulates the expression of follicle-regulatory genes via Wnt/β-catenin signaling pathway. (A) The mRNA and (B, C) the protein levels of Survivin, Msx2 and SGK3 in the ORS cells with EGF treatment/overexpression and/or XAV-939 treatment. The values are expressed as means ± SD of three independent experiments. Compared with the control cells, ** p < 0.01, *** p < 0.001; with versus without XAV-939, #p < 0.05, ##p < 0.01, ###p < 0.01. © 2016 The Author(s) Published by S. Karger AG, Basel - CC BY-NC-ND 4.0

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