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In vitro differentiation of chicken spermatogonial stem cells into adipocytes

  • Yu Fei (a1), Ge Jian-Hui (a1), Ni Li-Gang (a1), He Xian-Hong (a1), Xu Qi (a1) and Li Bi-Chun (a1) (a2)...


Spermatogonial stem cells (SSCs), which were isolated from chicken (Gallus gallus) embryo testes 16 days after laying, were cultured, subcultured, and induced into adipocytes in vitro. The differentiated cells were identified by oil red-O staining. Dexamethasone, insulin and 3-isobutyl-1-methylxanthine (IBMX) were tested for their induction potential. About 7–21 days after induction, SSCs differentiated into adipocytes, and the resulting adipocytes strongly expressed peroxisome proliferation activation receptor-γ (PPAR-γ). The assay outcome showed that an optimal treatment consisted of dexamethasone, insulin and IBMX application for 3 days and insulin for 1 day (3 cycles), then insulin for 21 days. The differentiation ratio was 85%, better than the combined use of dexamethasone, insulin and IBMX (P<0.01). However, the combination of the three derivatives triggered a stronger induction than any of them used alone (P<0.01). This study has demonstrated the potential of chicken embryonic SSCs to differentiate in vitro into adipocytes.


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