HES1 overexpression

Finally, the nuclear/cytoplasmic GSK-3β score was significantly higher in morules compared to Sur Ca in Em Ca, and was positively correlated with nuclear β-catenin, Hes1, and MAML2 scores. This complex interplay between Notch effectors and β-catenin signaling through GSK-3β inhibition contributes to the establishment and maintenance of β-catenin-mediated morular differentiation, which is in turn associated with reduced proliferation and inhibition of migration in Em Ca.

Our finding demonstrates that HES1-10 plays a crucial role in regulating OS growth and metastasis.

Knockdown of SOX1 by the withdrawal of doxycycline partly restored the malignant phenotype of inducible SOX1-expressing NSCLC cells...Furthermore, we performed phenotypic rescue experiments to prove that overexpression of HES1-FLAG in SOX1-expressing H1299 cells partly reversed the tumor-suppressive effect. Taken together, these data demonstrated that SOX1 acts as a tumor suppressor by directly inhibiting HES1 during the development of NSCLC.

BLIA and BLIS subtypes are distinguished histologically by the level of TILs but otherwise show similar morphologic features. In gene expression analysis, BLIS tumors showed higher expression of four genes (FOXC2, MAPT, BAMBI and HES1). Overexpression of these genes may be useful as clinical markers of the BLIS phenotype, especially in tumors with intermediate TILs, and may also serve as potential targets in this therapeutically challenging subtype of TNBC.

Moreover, the SENP1 inhibitor momordin-Ic or HES1 overexpression synergized with cytarabine to eradicate AML cells in vitro and in xenograft mouse models. In summary, the current study revealed a novel role of SIRT3 SUMOylation in the regulation of chemoresistance in AML via HES1-dependent FAO and provided a rationale for SIRT3 SUMOylation and FAO targeted interventions to improve chemotherapies in AML.

Overexpression of HES1 activated the Notch1 signaling pathway, thus promoting the proliferation of CLL cells, increasing the proportion of cells arrested at the S phase and limiting the apoptosis of CLL cells. Collectively, HES1 can promote activation of the Notch1 signaling pathway to cause PTEN transcription inhibition and the subsequent expression reduction, thereby promoting the proliferation and inhibiting the apoptosis of CLL cells.

BC cells were treated with different concentrations of doxorubicin, cisplatin, and fulvestrant, and the cell survival was evaluated. EVs carrying miR-887-3p could target BTBD7 and activate the Notch1/Hes1 signaling pathway, thereby promoting BC cell drug resistance. This study may offer novel insights into BC treatment.

Univariate survival analysis revealed a favorable survival in high expression group for a significant disease free survival (DFS, HR=1.477,95%CI 1.025-2.129, P=0.036 ) and a positive trend of overall survival (OS, HR=1.181,95%CI 0.778-1.792,P=0.435). Conclusion In limited stage pure small cell lung cancer, high expression of Hes1 protein is related to age, lymph node metastasis, main cell morphology and TILs , which contributes as a potential biomarker for the prognosis of SCLC patients.

This research evidenced that ETV4 encourages malignant development of COAD through activating HES1 transcription and Stat3 phosphorylation. This study may offer novel insights into COAD therapy.

Meanwhile, HES1 knockdown reduces BCSC self-renewal, BCSC population, and cancer cell proliferation in TNBC, whereas overexpression of Slug restores the oncogenic function of HES1, both in vitro and in vivo, suggesting that HES1 performs its oncogenic role through upregulating Slug. Taken together, HES1 promotes BCSC stemness properties via targeting Slug, highlighting that HES1 might be a novel candidate for BCSC stemness regulation in TNBC and providing new clues for identifying promising prognostic biomarkers and therapeutic targets of TNBC.

In particular, Rg3 significantly reversed IL-6-induced EMT promotion and blocked IL-6- induced NICD and Hes1 upregulations. Overall, these findings suggested that Rg3 could inhibit colon cancer migration and metastasis via suppressing Notch-Hes1-EMT signaling.

These results hightlighted the critical role of nestin +/CD31 + cells in HPVN that acts in GBM chemoresistance and revealed the distinctive prognostic value of these molecular markers in HPVN.