Results 91 to 100 of about 40,878 (239)

Mitochondrial Calcium Uniporter Drives Chemoresistance in Pancreatic Cancer via Glutathione‐Mediated Stemness Maintenance

Advanced Science, EarlyView.
PDAC has a poor prognosis due to chemoresistance. We revealed that MCU upregulation is associated with chemoresistance and stemness in PDAC. MCU‐mediated Ca2+ influx induced ER stress, activating the PERK‐ATF4/NRF2 axis to enhance PSAT1/SLC711 expression and glutathione synthesis, reducing ROS and maintaining stemness.
Zekun Li, Chenyang Meng, Guangcong Shen, Yueying Shan, Junjin Wang, Diliyaer Abudukeremu, Rui Zhao, Bo Ni, Chao Xu, Xiaofan Guo, Jun Yu, Kaiyuan Wang, Shengyu Yang, YunZhan Li, Yongjie Xie, Tianxing Zhou, Jihui Hao, Xiuchao Wang   +17 more
wiley   +1 more source

The basic helix loop helix transcription factor twist1 is a novel regulator of ATF4 in osteoblasts [PDF]

, 2012
Parathyroid hormone (PTH) is an essential regulator of endochondral bone formation and an important anabolic agent for the reversal of bone loss. PTH mediates its functions in part by regulating binding of the bone‐related activating transcription factor
Ardura, Bellido, Bialek, Boudreaux, Burgess, Chaudhary, Chen, Chen, Connerney, Danciu, Datta, Ducy, Ducy, Ducy, Ducy, Frendo, Gardella, Iida-Klein, Jiang, Jilka, Komori, Krishnan, Li, Liao, Makarova, McCabe, McCauley, Miao, Muir, Mundlos, Nakashima, Pettway, Schmidt, Sosic, Suzuki, Wang, Xiao, Yang, Yang, Yu, Yu, Yu   +41 more
core   +1 more source

Alkyltriphenylphosphonium Binding to Cardiolipin Triggers Oncosis in Cancer Cells

Advanced Science, EarlyView.
Alkyltriphenylphosphonium, exemplified by TPP+‐C14, preferentially accumulates in mitochondria and selectively binds to cardiolipin, a key phospholipid of the inner mitochondrial membrane, causing loss of mitochondrial membrane potential, severe cellular ATP depletion, and calcium imbalance.
Jin Li, Hang Zheng, Yuxing Lin, Ziwei Zhao, Yijia Mai, Zhangrong Lou, Qiang Liu, Zhao Ma, Chengjun Wu   +8 more
wiley   +1 more source

A bioinformatic analysis found low expression and clinical significance of ATF4 in breast cancer

Heliyon
Background: Activating Transcription Factor 4 (ATF4) expression exhibits differential patterns across different types of tumors. Besides, the pathogenesis of breast cancer is complex, and the exact relationship between ATF4 and ATF4 remains uncertain ...
Lujing Shao, Zhounan Zhu, Xinyan Jia, Yabin Ma, Chunyan Dong   +4 more
doaj   +1 more source

XIAP Stabilizes DDRGK1 to Promote ER‐Phagy and Protects Against Noise‐Induced Hearing Loss

Advanced Science, EarlyView.
Mechanism of GAS‐mediated protection against noise‐induced hearing loss (NIHL). Noise exposure activates the ATF4/eIF2α axis, downregulating XIAP and promoting DDRGK1 degradation, thereby inhibiting ER‐phagy and leading to hair cell (HC) death. GAS treatment rescues XIAP and DDRGK1 expression, reactivating ER‐phagy to mitigate HC loss, synaptic damage,
Lin Yan, Yuhua Zhang, Jiawei Du, Yongjun Zhu, Wei Cao, Yongjie Wei, Han Wu, Shiyu Qiu, Shiyi Pan, Lian Chen, Pingping Liang, Renjie Chai, Jianming Yang, Qiaojun Fang   +13 more
wiley   +1 more source

Inhibition of signaling protein ERN1 increases the sensitivity of serine synthesis gene expressions to glucose and glutamine deprivations in U87MG glioblastoma cells

Endocrine Regulations
Objective. Glucose and glutamine supply as well as serine synthesis and endoplasmic reticulum (ER) stress are important factors of glioblastoma growth. Previous studies showed that the knockdown of ERN1 (ER to nucleus signaling 1) suppressed glioblastoma
Minchenko Oleksandr H., Sliusar Myroslava Y., Khita Olena O., Minchenko Dmytro O., Viletska Yuliia M., Halkin Oleh V., Levadna Liudmyla O., Cherednychenko Anastasiia A., Khikhlo Yevgen P.   +8 more
doaj   +1 more source

CK1δ stimulates ubiquitination‐dependent proteasomal degradation of ATF4 to promote chemoresistance in gastric Cancer

Clinical and Translational Medicine, 2021
Chemoresistance remains a major obstacle to successful cancer therapy, especially for advanced cancers. It used to be recognised as a stable outcome resulting from genetic changes.
Lifeng Feng, Muchun Li, Xinyang Hu, Yiling Li, Liyuan Zhu, Miaoqin Chen, Qi Wei, Wenxia Xu, Qiyin Zhou, Weikai Wang, Dingwei Chen, Xian Wang, Hongchuan Jin   +12 more
doaj   +1 more source

CRISPR-Cas9 screens in human cells and primary neurons identify modifiers of C9ORF72 dipeptide-repeat-protein toxicity. [PDF]

, 2018
Hexanucleotide-repeat expansions in the C9ORF72 gene are the most common cause of amyotrophic lateral sclerosis and frontotemporal dementia (c9ALS/FTD).
A Berson, A Jovičić, AA Dominguez, Aaron D. Gitler, AC Elden, AD Gitler, AD Gitler, AD Gitler, AE Renton, AM Jablonski, Amy Li, Ana Jovičić, AS Ng, BD Freibaum, C Sidrauski, C Sidrauski, C. Kimberly Tsui, D Ron, David W. Morgens, DW Morgens, DW Morgens, E Yeger-Lotem, EM Lynes, EY Son, FB Gao, Gregor Bieri, H Koike-Yusa, HJ Kim, HJ Kim, I Kwon, IR Mackenzie, IR Mackenzie, J Couthouis, J Joung, James Ousey, JC Christianson, JG Wideman, JP Taylor, Julien Couthouis, Justin K. Ichida, K Kanekura, K Mori, K Zhang, KH Lee, KM Green, KY Shi, L Ellgaard, L Huang, LA Becker, LA Gilbert, LA Gilbert, M Armakola, M DeJesus-Hernandez, M Neumann, M Prudencio, MA Horlbeck, Marc Tessier-Lavigne, MC Jonikas, MH Schludi, MI Love, Michael C. Bassik, Michael S. Haney, NF Liachko, Nicholas J. Kramer, Nicholas T. Hertz, O Shalem, OM Peters, PE Ash, Q Zhou, R Dafinca, R Lopez-Gonzalez, R Seijffers, RJ Platt, RM Deans, Rosanna Ma, S Boeynaems, S Boeynaems, S Ju, S Konermann, S Mizielinska, S Treusch, SC Ling, SJ Zhang, T Wang, T Westergard, T Zu, TF Gendron, W Cheng, X Wen, Y Lin, Y Zhou, Yingxiao Shi, YJ Zhang, YS Davidson, Z Shevtsova, Z Sun   +95 more
core   +1 more source

Engineered GM1 Intersects Between Mitochondrial and Synaptic Pathways to Ameliorate ALS Pathology

Advanced Science, EarlyView.
Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disease driven by genetic and molecular disruptions affecting energy balance, protein homeostasis, and stress responses in nerve cells. Studies using human and rodent models identified convergent defects in mitochondria and synaptic function.
Federica Pilotto, Tristan Dellazizzo Toth, Silvano Bond, Alexander Schmitz, Rim Diab, Sara Y. Ngo Tenlep, Brian Mooney, Silvia Erni, Martina Schobesberger, Olivier Scheidegger, Camille Peitsch, Smita Saxena   +11 more
wiley   +1 more source

Mechanisms of selenomethionine developmental toxicity and the impacts of combined hypersaline conditions on Japanese medaka (Oryzias latipes). [PDF]

, 2014
Selenium (Se) is an essential micronutrient that can cause embryotoxicty at levels 7-30 times above essential concentrations. Exposure to hypersaline conditions and 50 μM selenomethionine (SeMet) decreased embryo hatch and depleted glutathione in ...
Kupsco, Allison, Schlenk, Daniel
core   +1 more source