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. 2023 Sep 29;14:6088. doi: 10.1038/s41467-023-41753-1

Fig. 3. Premature centriole disengagement depends on Wee1 kinase and Cdk1/Cyclin-A2.

Fig. 3

A Live-cell time-lapse images of RPE1: EB3-eGFP/H2B-mCherry cells treated with indicated drugs/inhibitors. EB3-GFP channel is shown as a large image and the corresponding H2B-mCherry (DNA) channel is shown as insets. Scale bars = 5 µm. B Quantification for the proportion of mitotic cells displaying transient multipolar spindles upon mitotic entry in (A) (N = 3 independent experiments, n = 485, 137, 462, 385, 333 and 276 cells in DMSO, Aph, Wee1i-1, Wee1i-2, Aph+Wee1i-1 and Aph+wee1i-2, respectively: p-values from two-tailed Sídak test). C Schematic representation of auxin-induced cyclin degradation of Cyclin-A2 and B1 in RPE1 cells. D Expansion microscopy images of centrioles in G2 Phase RPE1 OSTIR1, Cyclin-A2 double degron (CCNA2-DD) and Cyclin-B1 double degron (CCNB2-DD) cells after inducing degron expression and treated with indicated drugs/inhibitors. E Quantification of percentage of G2 phase cells with disengaged centrioles in their centrosomes [N = 3 independent experiments, n = 88 (OSTIR:DMSO), 86 (OSTIR:Aph), 85 (OSTIR:Aph+Cdk1i), 88 (CCNA2-DD:DMSO), 86 (CCNA2-DD:Aph), 86 (CCNA2-DD:Aph+Cdk1i), 85 (CCNB1-DD:DMSO), 75 (CCNB1-DD:Aph) and 70 (CCNB1-DD:Aph+Cdk1i) cells]. Data presented as mean values ± SD. Data presented as mean values ± SD. (p-values from two-way ANOVA and Dunn’s multiple comparison test). Scale bars = 0.5 µm. Source data for all graphs are provided as a Source Data file.