p53 modulation of the DNA damage response

ES Helton, X Chen - Journal of cellular biochemistry, 2007 - Wiley Online Library
The tumor suppressor p53 plays a central role in the DNA damage response. After exposure
to genotoxic stress, p53 can both positively and negatively regulate cell fate. Initially, p53 …

Living with p53, dying of p53

Y Aylon, M Oren - Cell, 2007 - cell.com
The p53 tumor suppressor protein acts as a major defense against cancer. Among its most
distinctive features is the ability to elicit both apoptotic death and cell cycle arrest. In this …

APC/CCdc20 controls the ubiquitin-mediated degradation of p21 in prometaphase

V Amador, S Ge, PG Santamaría, D Guardavaccaro… - Molecular cell, 2007 - cell.com
During the G1/S transition, p21 proteolysis is mediated by Skp2; however, p21
reaccumulates in G2 and is degraded again in prometaphase. How p21 degradation is …

The dark side of a tumor suppressor: anti-apoptotic p53

RU Jänicke, D Sohn, K Schulze-Osthoff - Cell Death & Differentiation, 2008 - nature.com
Depending on multiple factors DNA damage leads either to cell cycle arrest or apoptosis.
One of the main players deciding the fate of a cell is the tumor suppressor p53 that …

Hzf Determines cell survival upon genotoxic stress by modulating p53 transactivation

S Das, L Raj, B Zhao, Y Kimura, A Bernstein… - Cell, 2007 - cell.com
A critical unresolved issue about the genotoxic stress response is how the resulting
activation of the p53 tumor suppressor can lead either to cell-cycle arrest and DNA repair or …

Functional Investigations of p53 Acetylation Enabled by Heterobifunctional Molecules

LY Chen, SJ Singha Roy, AM Jadhav… - ACS Chemical …, 2024 - ACS Publications
Post-translational modifications (PTMs) dynamically regulate the critical stress response and
tumor suppressive functions of p53. Among these, acetylation events mediated by multiple …

The complex roles of DNA repair pathways, inhibitors, hyperthermia, and contact inhibition in cell cycle halts

MB Ahmed, AAA Alghamdi, SU Islam… - Mini Reviews in …, 2023 - ingentaconnect.com
The cell cycle has the capacity to safeguard the cell's DNA from damage. Thus, cell cycle
arrest can allow tumor cells to investigate their own DNA repair processes. Cancer cells …

Elimination of age-associated hepatic steatosis and correction of aging phenotype by inhibition of cdk4-C/EBPα-p300 axis

P Nguyen, L Valanejad, A Cast, M Wright, JM Garcia… - Cell reports, 2018 - cell.com
The aging liver is affected by several disorders, including steatosis, that can lead to a
decline of liver functions. Here, we present evidence that the cdk4-C/EBPα-p300 axis is a …

Activation of p53 by Nutlin-3a, an antagonist of MDM2, induces apoptosis and cellular senescence in adult T-cell leukemia cells

H Hasegawa, Y Yamada, H Iha, K Tsukasaki, K Nagai… - Leukemia, 2009 - nature.com
It has been reported that the induction of cellular senescence through p53 activation is an
effective strategy in tumor regression. Unfortunately, however, tumors including adult T-cell …

ZNF385A and ZNF346 Serve as Prognostic Biomarkers Associated with an Inflamed Immunosuppressive Tumor Microenvironment in Hepatocellular Carcinoma

Q Peng, J Li, Q Wu, P Wang, Z Kang, Y Deng… - International Journal of …, 2023 - mdpi.com
Hepatocellular carcinoma (HCC) has a high mortality rate worldwide, and there are still
many problems in the early diagnosis, molecular targeted therapy, and immunotherapy. It is …