Results 51 to 60 of about 16,512,730 (230)

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source

Early Atf4 activity drives airway club and goblet cell differentiation

Life Science Alliance
PERK/Atf4 drives airway epithelial differentiation, impacting secretory cell numbers, revealing ATF4’s role in respiratory tract regeneration. Activating transcription factor 4 (Atf4), which is modulated by the protein kinase RNA-like ER kinase (PERK ...
Juan F Barrera-Lopez, Guadalupe Cumplido-Laso, Marcos Olivera-Gomez, Sergio Garrido-Jimenez, Selene Diaz-Chamorro, Clara M Mateos-Quiros, Dixan A Benitez, Francisco Centeno, Sonia Mulero-Navarro, Angel C Roman, Jose M Carvajal-Gonzalez   +10 more
doaj   +1 more source

JNK contributes to the tumorigenic potential of human cholangiocarcinoma cells through the mTOR pathway regulated GRP78 induction.

PLoS ONE, 2014
Less is known about the roles of c-Jun N-terminal kinase (JNK) in cholangiocarcinoma (CCA). Here, we report that JNK exerts its oncogenic action in human CCA cells, partially due to the mammalian target of rapamycin (mTOR) pathway regulated glucose ...
Chunhong Feng, Kai He, Chunyan Zhang, Song Su, Bo Li, Yuxiao Li, Chun-Yan Duan, Shaokun Chen, Run Chen, Youping Liu, Hong Li, Mei Wei, Xianming Xia, Rongyang Dai   +13 more
doaj   +1 more source

Activating mutations in EGFR and PI3K promote ATF4 induction for NSCLC cell survival during amino acid deprivation

Heliyon, 2023
Some oncoproteins along with stress kinase general control non-derepressible 2 (GCN2) can ensure the induction of activating transcription factor 4 (ATF4) to counteract amino acid deprivation; however, little is known regarding the role of the oncogenic ...
Mizuki Takahashi, Yuka Okamoto, Yu Kato, Hitomi Shirahama, Satomi Tsukahara, Yoshikazu Sugimoto, Akihiro Tomida   +6 more
doaj   +1 more source

C/EBP Homology Protein (CHOP) Interacts with Activating Transcription Factor 4 (ATF4) and Negatively Regulates the Stress-dependent Induction of the Asparagine Synthetase Gene [PDF]

Journal of Biological Chemistry, 2008
C/EBP homology protein (CHOP), a stress-induced transcription factor, is involved in transcriptional regulation, cell cycle, and apoptosis. The present studies identified CHOP as an interacting partner of activating transcription factor (ATF) 4 in a yeast two-hybrid screen and confirmed their interaction in HEK293T cells.
Nan, Su, Michael S, Kilberg
openaire   +2 more sources

Mechanisms and therapeutic opportunities of the ribotoxic stress response in cancer

Molecular Oncology, EarlyView.
Cancer cells' high translational demand creates opportunities to therapeutically target ribosome function. Ribosome stalling and collisions activate ZAKα and the ribotoxic stress response (RSR), which can trigger rapid, p53‐independent apoptosis in cancer.
Anastassiya Kim, Maryam Aslam, Elouise Torruella, Alphons Sony, Asif Rahman, Simira Smith, Columba de la Parra, Moira Sauane   +7 more
wiley   +1 more source

Activating transcription factor 4 promotes esophageal squamous cell carcinoma invasion and metastasis in mice and is associated with poor prognosis in human patients.

PLoS ONE, 2014
BackgroundActivating transcription factor 4 (ATF4) is a stress response gene that is involved in homeostasis and cellular protection. However, its expression and function in esophageal squamous cell carcinoma (ESCC) remains unknown.
Hongwu Zhu, Xiong Chen, Bin Chen, Bei Chen, Weibing Song, Dayong Sun, Yagang Zhao   +6 more
doaj   +1 more source

ATF4 (activating transcription factor 4) from grass carp (Ctenopharyngodon idella) modulates the transcription initiation of GRP78 and GRP94 in CIK cells

Fish & Shellfish Immunology, 2014
GRP78 and GRP94, belong to GRP (glucose-regulated protein) family of endoplasmatic reticulum (ER) chaperone superfamily, are essential for cell survival under ER stress. ATF4 is a protective protein which regulates the adaptation of cells to ER stress by modulating the transcription of UPR (Unfolded Protein Response) target genes, including GRP78 and ...
Qidi, Fan, Huiling, Mao, Chuxin, Wu, Yong, Liu, Yousheng, Hu, Bin, Zhong, Yichuan, Mi, Chengyu, Hu   +7 more
openaire   +3 more sources

A role for eIF5A in translational control of stress‐inducible proteins in multiple myeloma cell lines

Molecular Oncology, EarlyView.
Loss of eIF5A rewires thapsigargin‐mediated endoplasmic reticulum stress responses in multiple myeloma cells by selective translation of mRNA transcripts, consequently dampening thapsigargin‐induced unfolded protein response (UPR) activation and shifting the balance from induction of apoptosis toward cell survival and proliferation.
Demi Both, Ingrid A. M. Derks, Raphaël Vanleyssem, Marine Leclercq, Najla El Hachem, Pierre Close, Eric Eldering, Marco Vincent Haselager   +7 more
wiley   +1 more source

Cooperation Between Hypoxia-Inducible Factor 1α and Activating Transcription Factor 4 in Sleep Apnea–Mediated Myocardial Injury

, 2020
International audienceChronic intermittent hypoxia (CIH) occurring during sleep apnea amplifies infarct size owing to ischemia-reperfusion. CIH activates hypoxia-inducible factor 1 (HIF-1) and activating transcription factor 4 (ATF4).
Belaidi, Elise, Moulin, Sophie, Wagner, Stefan, Arzt, Michael, Maier, Lars S., Pépin, Jean-Louis, Thomas, Amandine, Arnaud, Claire, Gaucher, Jonathan, Godin-Ribuot, Diane   +9 more
core   +1 more source