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Fig. 3 | Stem Cell Research & Therapy

Fig. 3

From: Differentiation of adipose-derived stem cells into Schwann cell-like cells through intermittent induction: potential advantage of cellular transient memory function

Fig. 3

Relative messenger RNA (mRNA) expression and neurotrophin secretion levels of all groups. a The relative expression level of nerve growth factor receptor (NGFR) (p75) mRNA was not significantly different among sustaining dASCs 7d (5.55 ± 0.29), intermittent dASCs (5.11 ± 0.23), and SCs (5.54 ± 0.34), which were significantly higher (p < 0.01) than the other three groups. b The relative expression level of P0 mRNA was highest in SCs (14.11 ± 0.88). There were no significant differences between intermittent dASCs (8.46 ± 0.34) and sustaining dASCs 7d (7.10 ± 0.54). However, intermittent dASCs showed significantly higher P0 mRNA expression (p < 0.05) in comparison with sustaining dASCs 10d (6.00 ± 0.12) and 4d groups (2.66 ± 0.19). c The relative expression level of glial fibrillary acidic protein (GFAP) mRNA was not significantly different between intermittent dASCs (4.62 ± 0.21) and the three sustaining dASCs groups, all of which showed significant upregulation (p < 0.01) in comparison with the undifferentiated adipose-derived stem cells (uASCs). d The levels of nerve growth factor (NGF) secreted by intermittent dASCs (99.37 ± 5.00 pg/ml) and sustaining dASCs 7d (95.20 ± 4.34 pg/ml) were significantly higher (p < 0.01) than those of uASCs (31.18 ± 3.09 pg/ml), and sustaining dASCs 4d (54.69 ± 2.20 pg/ml) and 10d (45.90 ± 2.27 pg/ml), but lower (p < 0.01) than that of SCs (112.46 ± 4.55 pg/ml). e,f Brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF) secretion levels showed similar tendencies. The concentrations of BDNF and GDNF secreted by intermittent dASCs were 483.01 ± 10.08 and 205.66 ± 6.01 pg/ml, respectively, which were higher (p < 0.01) than in the other groups, including SCs. g The concentrations tendency of ciliary neurotropic factor (CNTF) and NGF were similar. Data are expressed as means ± SEM. *p < 0.05, **p < 0.01, one-way ANOVA with Tukey’s post-test or Dunnett’s T3 post-test. dASC, differentiated adipose-derived stem cell; n.s., no significant difference, SC, Schwann cell

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Stem Cell Research & Therapy

ISSN: 1757-6512