SPRY2 deficiency mediates CRPC

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SPRY2 deficiency mediates CRPC SPRY2 deficiency mediates CRPC Kaplan–Meier plot for relapse‐free survival in TCGA prostate cancer 2015 dataset showing cases with low SPRY2 mRNA expression z‐scores (RNA seq V2 RSEM) (EXP < −1.3) n = 48 and rest of the cases with higher SPRY2 expression (n = 443); log‐rank (Mantel–Cox) test; P = 0.034.Immunostaining for PTEN in HN and CRPC matched clinical prostate cancer sections represented as IHC (immunohistochemistry) scores.Scatter plot showing correlation of PTEN and SPRY2 IHC scores in CRPC samples.Kaplan–Meier plot for overall survival of NPS mice treated with ADT after palpable tumour was detected after 50 weeks (mock = 7; ADT = 6). After 50 weeks, palpable tumour was detected (black dotted line). The mice were then randomised into mock treatment or ADT treatment (red dotted line).Representative images of prostate tumours (PT) from mock and ADT‐treated NPS mice 1 month after ADT.Representative images of prostate tumours from mock and ADT‐treated NPS mice at clinical endpoints (˜77–115 weeks).IHC quantifications in NPS tumours (n = 3 mice per group; *P < 0.05; ANOVA Sidak's test).Prostate tissue weights at 1 month following mock or ADT treatment in Nkx3.1 Pten+/+Spry2+/+ wild‐type (WT), Nkx3.1 Ptenfl/+ and Nkx3.1 Spry2fl/+ mice (n = 3 mice per group; *P < 0.05 compared to respective mocks; ANOVA Sidak's test).Representative immunostained images of mouse prostate sections from Nkx3.1 Pten+/+Spry2+/+ wild‐type (WT), Nkx3.1 Ptenfl/+ and Nkx3.1 Spry2fl/+ mice 1 month following mock or ADT treatment. Scale bar = 10 μm.IHC quantifications for Nkx3.1 Pten+/+Spry2+/+ wild‐type (WT), Nkx3.1 Ptenfl/+ and Nkx3.1 Spry2fl/+ mock‐ and ADT‐treated control prostate sections (n = 3 mice per group; *P < 0.05 compared to respective mock controls; ANOVA Tukey's test).Representative immunoblot images for indicated proteins from cell lysates of a panel of prostate cancer cell lines along with non‐tumorigenic RWPE‐1 prostate epithelial cells. HSC70 is used as loading control.Data Information: In (B, C, G, H, J), each data point represents one independent sample. In (B, G, H, J), the data are presented as mean ± SD.Source data are available online for this figure. Rachana Patel et al. EMBO Mol Med. 2018;10:e8347 © as stated in the article, figure or figure legend