PPP1R15A (Protein Phosphatase 1 Regulatory Subunit 15A)

These findings may help guide future research in this field; nevertheless, methodological heterogeneity limits comparability, reinforcing the need for standardized protocols. Funding: ITpS, CNPq, and FAPEMIG.

These results highlight the potential of probabilistic phenotyping from multi-modal EHRs to improve genetic discovery. The MixEHR-SAGE software is publicly available at: https://github.com/li-lab-mcgill/MixEHR-SAGE.

Correlative analysis of patient datasets confirmed associations between PLEC/ODF2 expression and ISR-related gene signatures, supporting the clinical relevance of this pathway. Together, these findings identify plectin as a key target of PST in disrupting cytoskeletal integrity and establish plectin/ODF2 axis in PST-driven stress adaptation in HCC.

Pharmacological inhibition of GADD34 using Sephin1 effectively suppressed XBP1 splicing and alleviated CAR-T cell exhaustion in an ex vivo model, leading to enhanced tumor-killing capacity across multiple cancer models. This work not only establishes a powerful new tool for systematically studying RNA splicing regulation but also uncovers a promising therapeutic strategy for improving CAR-T cell immunotherapy through modulation of the IRE1α-XBP1 pathway.

The accurate risk model stratified patients: high-risk correlated with suppressed immunity (p < 2.2e-16), elevated TIDE (p = 5.4e-14), and higher CI.1040 IC50 (cor = 0.63, p < 0.0001)...Risk score, age, race, N/M-stage were independent factors. Seven prognostic genes effectively predicted BRCA prognosis with independent prognostic factors.

In the TCGA cohort, multivariate analysis showed that high FANCD2 expression was associated with unfavorable recurrence-free survival in platinum-treated patients (hazard ratio = 4.0; P = 0.011), but not in those who did not receive platinum chemotherapy. Cisplatin resistance in HNSCC appears to be driven primarily by molecular mechanisms involving DNA damage response and cell cycle arrest pathways, rather than poor drug uptake.

These findings suggest that BAMBI, GADD34, NFKBIA, and NFKBID serve as critical regulators of CRC progression and radiation resistance. Overall, this study provides a mechanistic foundation for further exploration into the pathways underlying radiation resistance and underscores the potential for developing personalized radiotherapy strategies guided by molecular profiling.

Importantly, inhibition of PERK or protein kinase R (PKR) activity suppressed CHOP activation and DHAV-1 replication, indicating that the PERK/PKR-eIF2α pathway played a crucial role in ERS-induced apoptosis. Collectively, our study provides novel insights into the mechanism of DHAV-1-induced apoptosis and reveals a potential defense mechanism against DHAV-1 replication.

PPP1R15A sustained the survival of gastric cancer cells by regulating autophagy under energy stress to resist or adapt to harsh environments.

Distinct protein associations were found: ATR, POLA1, BLM, SP100, and PPP1R15A for early recurrence, and SERPINA1, TGFB2, SERPING1, and CAD for late recurrence, with strong interactions with chemotherapeutic drugs. This study successfully demonstrated the use of PMFs for rapid discrimination between early and late recurrence in CCA and identified potential serum peptide biomarkers to improve accuracy in recurrence classification.

Further, we found genes with rare variants that associate with decreased risk of cancer; AURKB for any cancer, irrespective of site, and PPP1R15A for breast cancer, suggesting that inhibition of PPP1R15A may be a preventive strategy for breast cancer. Our findings pinpoint several new cancer risk genes and emphasize autophagy, apoptosis and cell stress response as a focus point for developing new therapeutics.

Transcriptomic analyses and validation reveal the importance of the MAP2K1/2/GPAT4-DDIT3 pathway in driving cellular senescence following ATF6α ectopic expression in MCF-7 cells. This study contributes to our understanding of the initial molecular events underlying ER stress-induced cellular senescence in breast cancer cells, providing a foundation for exploring cell type- and stressor-specific responses in cellular senescence induction.