Fig. 1. Loss of Tex10 compromises PGCLC specification efficiency.
(A) Relative expression levels of Tex10 in mouse tissue/cell line samples (n=30). The male and female PGCs are indicated in orange and green, respectively. Data were obtained from the publicly available dataset (Hutchins et al. 2017).
(B) Relative expression levels of Tex10 on day 1, day 3, day 7 testes, and spermatocytes from adult testes. The data were curated from GSE83264.
(C) Schematic representation of the Tex10 degron system. Briefly, the Tex10 C terminus was edited using the CRISPR/Cas9 scissor to integrate degron system elements, and the Cre-loxP system was further used to delete the dsRed element.
(D) Western blot validation on two cell clones (C1 and C2) of the Tex10 degron system. The top arrow indicates Tex10-HA-tagged FKBP12F36V protein with a size of around 118 kDa, and the second arrow indicates the wildtype Tex10 protein of 106 kDa.
(E) Cellular morphology of embryoid bodies (EBs) treated with DMSO or dTAG13 during six days of in vitro PGCLC specification from EpiLCs.
(F) Flow cytometry analysis of PGCLC specification efficiency using cell surface markers SSEA1 and CD61. Percentages of double-positive (SSEA1+ and CD61+) cells are indicated at day 2 and day 6 of PGCLC induction for clone C1.
(G-H) Quantification of double-positive (SSEA1+ and CD61+) percentage in live cells (G) and cell numbers per 20,000 analyzed cells (H) shown with bar plots. Two cell clones C1 and C2 were used as biological replicates, and an ANOVA test was used to detect significance.
(I-K) Flow cytometry analysis of PGCLC specification efficiency using cell surface markers SSEA1 and CD61. Percentages of double-positive (SSEA1+ and CD61+) cells are indicated at day 6 of PGCLC induction (I). Quantification of double-positive percentage in live cells (J) and cell numbers per 20,000 analyzed cells (K) are shown with bar plots. Two cell clones C1 and C2 were used as biological replicates, and a paired t-test was used to detect significance. Withdrawal for depleting Tex10 only at day one of PGCLC induction and then transferring EBs into medium without dTAG13 to restore Tex10 expression; No Withdrawal for depleting Tex10 for six days of PGCLC induction.
