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. 2021 Jul 6;10:e64872. doi: 10.7554/eLife.64872

Figure 1. 7,8-Dihydroxyflavone (7,8-DHF) promoted proliferation and differentiation of MC3T3-E1 osteoprogenitor cells.

(A) The effect of brain-derived neurotrophic factor (BDNF) or 7,8-DHF on the proliferation of MC3T3-E1 cells after treatment for 48 hr. (B) The percentage of MC3T3-E1 cells in each cell cycle phase treated with 7,8-DHF for 24 hr. Source file of gate parameters and regions chosen in the Modfit LT software for flow cytometry modeling was available in Figure 1—source data 1. (C) The effect of 7,8-DHF on the mRNA expression level of cyclin D1 was detected by quantitative real-time PCR (qRT-PCR). Results were normalized to the reference gene GAPDH. (D) The effect of BDNF or 7,8-DHF on the alkaline phosphatase (ALP) activity of MC3T3-E1 cells. Results were normalized with total protein quantity. Alizarin red S staining (magnification: 40× or 100×) (E) and quantitative analysis of the extent of mineralization (F) of MC3T3-E1 cells cultured with 7,8-DHF for 21 days. Source files of the full raw unedited micrographs were available in Figure 1—source data 2. All results were expressed as mean ± SD. (A-F: n = 3–4; #p < 0.05, ##p < 0.01, ###p < 0.001, ns: not significant, BDNF-treated groups, one-way analysis of variance [ANOVA]; *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001, ns: not significant, 7,8-DHF-treated groups, one-way ANOVA).

Figure 1—source data 1. Gate parameters and regions chosen in the Modfit LT software for flow cytometry modeling.
Figure 1—source data 2. The original files of the full raw unedited micrographs used in Figure 1E.
The folder named ‘40×’ contains the images at a magnification of 40. The folder named ‘100×’ contains the images at a magnification of 100.

Figure 1.

Figure 1—figure supplement 1. Brain-derived neurotrophic factor (BDNF) promoted mineralization of MC3T3-E1 osteoprogenitor cells.

Figure 1—figure supplement 1.

Alizarin red S staining (A) and quantitative analysis of the extent of mineralization (B) of MC3T3-E1 cells cultured with BDNF for 21 days. All results were expressed as mean ± SD (A, B: n = 3; ####p < 0.0001, one-way analysis of variance [ANOVA]).