phosphorylated p yap  (Cell Signaling Technology Inc)

Journal: Translational Oncology

Article Title: Piperlongumine suppresses YAP-ET-1-CXCL2 signaling to modulates aggressiveness of triple-negative breast cancer cells

doi: 10.1016/j.tranon.2026.102700

Figure Lengend Snippet: Piperlongumine (PL) inhibits YAP signaling in triple-negative breast cancer (TNBC) cells. (A) Western blot analysis of YAP protein levels in MDA-MB-231 and BT549 cells treated with PL (0, 1, and 5 μ M) for 24 h. (B) Western blot analysis of YAP and phosphorylated YAP (p-YAP) expression treated with PL in different time points. (C) Western blot analysis of phosphorylated LATS (p-LATS) and phosphorylated AMPK (p-AMPK) at different time points after PL treatment. (D) Representative immunofluorescence images of YAP expression in BT549 and MDA-MB-231 cells treated with PL for 24 h at the indicated concentrations, with quantification of nuclear YAP-positive cells. Scale bar, 50 μ m. * p < 0.05 and ** p < 0.01, as determined by unpaired t -tests.

Article Snippet: Antibodies for YAP (#12395), phosphorylated (p)-YAP (S127) (#13008), p-YAP (S61) (#75784), p-AMPK (AMPK; #130429), AMPK (#103487), p-LATS1 (S909) (#9157), and LATS1 (#3477) were purchased from Cell Signaling Technology.

Techniques: Western Blot, Expressing, Immunofluorescence

Journal: Translational Oncology

Article Title: Piperlongumine suppresses YAP-ET-1-CXCL2 signaling to modulates aggressiveness of triple-negative breast cancer cells

doi: 10.1016/j.tranon.2026.102700

Figure Lengend Snippet: ET-1 is a downstream of YAP and is suppressed by PL. (A) Real-time PCR analysis and Western blotting analysis of ET-1 and YAP expression levels in YAP-knockdown BT549 and MDA-MB-231 cells. (B) qPCR analysis of ET-1 mRNA levels in MDA-MB-231 and BT549 cells treated with PL (5 μ M) for 24 h. (C) Western blotting analysis of YAP, p-YAP (S61), and ET-1 protein levels in BT549 and MDA-MB-231 cells treated with increasing concentrations of PL for 24 h. (D) Representative immunofluorescence images of ET-1 expression in TNBC cells treated with PL (5 μ M) for 24 h. *** p < 0.001 as determined by unpaired t -tests. Scale bar, 50 μ m.

Article Snippet: Antibodies for YAP (#12395), phosphorylated (p)-YAP (S127) (#13008), p-YAP (S61) (#75784), p-AMPK (AMPK; #130429), AMPK (#103487), p-LATS1 (S909) (#9157), and LATS1 (#3477) were purchased from Cell Signaling Technology.

Techniques: Real-time Polymerase Chain Reaction, Western Blot, Expressing, Knockdown, Immunofluorescence

Journal: Journal of Translational Medicine

Article Title: TROP2 confers resistance to oxidative stress-induced cancer cell death through YAP/HMOX1 signaling

doi: 10.1186/s12967-026-07955-z

Figure Lengend Snippet: TROP2 suppression sensitized NSCLC to RSL3-induced ferroptosis in vivo. ( A ) Schematic diagram of the in vivo experimental timeline. Nude mice were subcutaneously injected with control (shCON) or TROP2-knockdown (shTROP2) PC9 cells, followed by intraperitoneal injection of RSL3 (5 mg/kg) or vehicle every other day. ( B ) Representative photographs of dissected subcutaneous tumors from each treatment group at the endpoint of the study. ( C ) Final tumor weights from each group at the endpoint. Data are presented as mean ± SD ( n = 6). ( D ) Tumor growth curves showing tumor volume over time for the four experimental groups. Data are presented as mean ± SEM ( n = 6 mice per group). ( E ) Representative IHC images of tumor sections stained for TROP2, YAP1, HMOX1, ACSL4, and SLC7A11 from the indicated groups. Scale bar, 100 μm. Data are presented as mean ± SD ( n = 6, C) or mean ± SEM ( n = 6 mice per group, D ). Statistical significance for differences among groups was determined by one-way ANOVA followed by Tukey’s post hoc test (C, and for the final time point in D). ∗ P < 0.05, ∗∗ P < 0.01

Article Snippet: After that, the membranes were blocked in 5% fat-free milk for 1 h. The membranes were incubated with the primary antibodies including TROP2 (1:1000, cat #47866, CST), GPX4 (1:1000, cat #AF7020, Beyotime), SLC7A11 (1:1000, cat #AF7992, Beyotime), ACSL4 (1:1000, cat #AG1908, Beyotime), HMOX1 (1:1000, cat #AG2181, Beyotime), YAP1 (1:1000, cat #14074, CST), P-YAP1 (1:1000, cat #13619, CST), LATS1 (1:1000, cat #3477, CST), p-LATS1 (1:1000, cat #9157, CST), Histone3 (1:1000, cat #9715, CST),α-Tubulin (1:1000, cat #2144, CST) at 4 °C overnight and the secondary antibodies at room temperature for 2 h. Protein bands were visualized using the ECL (Bio-Rad, Hercules, CA, USA).

Techniques: In Vivo, Injection, Control, Knockdown, Staining

Journal: Journal of Translational Medicine

Article Title: TROP2 confers resistance to oxidative stress-induced cancer cell death through YAP/HMOX1 signaling

doi: 10.1186/s12967-026-07955-z

Figure Lengend Snippet: TROP2 confers ferroptosis resistance by inactivating YAP to suppress HMOX1 transcription. ( A ) YAP1 mRNA levels in H292 and PC9 cells with TROP2 knockdown, as determined by qRT-PCR. ( B ) YAP1 mRNA levels in PC9 and A549 cells with TROP2 overexpression, as determined by qRT-PCR. ( C ) Representative IF images showing enhanced nuclear localization of YAP (green) in PC9 cells upon TROP2 knockdown. Nuclei were stained with DAPI (blue). Scale bar, 50 μm. ( D ) Representative IF images showing suppressed nuclear localization of YAP (green) in PC9 cells upon TROP2 overexpression. Scale bar, 50 μm. ( E ) Western blot analysis of YAP protein levels in nuclear and cytoplasmic fractions of PC9 and H292 cells with or without TROP2 knockdown. ( F ) Quantitative analysis (bar graph) of the bands was shown adjacent to the representative blots (from E). ( G, H ) Cell viability assessed by CCK-8 assay in PC9 and H292 cells with TROP2 knockdown, with or without concomitant YAP inhibition, following RSL3 treatment. ( I,J ) Measurement of cellular GSH levels in PC9 and H292 cells under the indicated conditions. ( K, L ) Measurement of cellular MDA levels in PC9 and H292 cells under the indicated conditions. Data are presented as mean ± SD ( n = 3). Statistical significance was determined by two-tailed unpaired Student’s t-test ( A , B , F ); two-way ANOVA followed by Sidak’s post hoc test or three-way ANOVA followed by Sidak’s post hoc test ( G - L ). ∗ P < 0.05, ∗∗ P < 0.01

Article Snippet: After that, the membranes were blocked in 5% fat-free milk for 1 h. The membranes were incubated with the primary antibodies including TROP2 (1:1000, cat #47866, CST), GPX4 (1:1000, cat #AF7020, Beyotime), SLC7A11 (1:1000, cat #AF7992, Beyotime), ACSL4 (1:1000, cat #AG1908, Beyotime), HMOX1 (1:1000, cat #AG2181, Beyotime), YAP1 (1:1000, cat #14074, CST), P-YAP1 (1:1000, cat #13619, CST), LATS1 (1:1000, cat #3477, CST), p-LATS1 (1:1000, cat #9157, CST), Histone3 (1:1000, cat #9715, CST),α-Tubulin (1:1000, cat #2144, CST) at 4 °C overnight and the secondary antibodies at room temperature for 2 h. Protein bands were visualized using the ECL (Bio-Rad, Hercules, CA, USA).

Techniques: Knockdown, Quantitative RT-PCR, Over Expression, Staining, Western Blot, CCK-8 Assay, Inhibition, Two Tailed Test