Results 71 to 80 of about 31,889 (263)

Stem-loop induced ribosome queuing in the uORF2/ATF4 overlap fine-tunes stress-induced human ATF4 translational control

open access: yesCell Reports, 2023
ATF4 is a master transcriptional regulator of the integrated stress response leading cells towards adaptation or death. ATF4's induction under stress was thought to be mostly due to delayed translation reinitiation, where the reinitiation-permissive uORF1 plays a key role.
Anna M. Smirnova   +14 more
openaire   +5 more sources

ATF4 siRNA blocks basal F7 expression. A.

open access: yes, 2012
siRNA directed to either the 5' UTR (ATF4 si#1, white bars) or the 3' UTR (ATF4 si#2, striped bars) of the human ATF4 gene were introduced into HepG2 cells cultured in media with 5 mM glucose.
Josephine A. Carew (146600)   +2 more
core   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

open access: yesAdvanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng   +14 more
wiley   +1 more source

DDIT4 is essential for DINP-induced autophagy of ovarian granulosa cells

open access: yesEcotoxicology and Environmental Safety, 2023
As one of the most important phthalates, di-isononyl phthalate (DINP) has been widely used as a common plasticizer in the food and personal care products sectors.
Yijing Wang   +5 more
doaj   +1 more source

Spatiotemporal Targeting Randle Cycle and Immune Checkpoint for Potent Antitumor Therapy

open access: yesAdvanced Science, EarlyView.
A glucose oxidase‐based nanogel (GOX‐NG) system using catechol‐functionalized alginate, exhibits enhanced tumor penetration, prolonged retention, and sustained glucose depletion in the tumor microenvironment. When combined with a fatty acid oxidation inhibitor, it implements dual metabolic suppression, thereby enhancing ROS‐induced immunogenic cell ...
Yuan Gao   +11 more
wiley   +1 more source

Atf4 Regulates Obesity, Glucose Homeostasis, and Energy Expenditure [PDF]

open access: yesDiabetes, 2009
OBJECTIVE We evaluate a potential role of activating transcription factor 4 (Atf4) in invertebrate and mammalian metabolism. RESEARCH DESIGN AND METHODS With two parallel approaches—a fat body–specific green fluorescent protein enhancer trap screen ...
Seo, J Seo, Jin   +8 more
openaire   +3 more sources

The Role of Sirtuin 1 in Palmitic Acid-Induced Endoplasmic Reticulum Stress in Cardiac Myoblasts

open access: yesLife, 2022
Background: Lipotoxicity causes endoplasmic reticulum (ER) stress, leading to cell apoptosis. Sirtuin 1 (Sirt1) regulates gene transcription and cellular metabolism. In this study, we investigated the role of Sirt1 in palmitate-induced ER stress. Methods:
Hsiang-Yu Yang   +8 more
doaj   +1 more source

Inhibition of KDEL Receptors Remodels the Tumor Microenvironment for T Cell Independent Tumor Regression

open access: yesAdvanced Science, EarlyView.
Inhibition of KDELR2 in a small fraction of tumor cells generates sustainable immunogenic cell death conditions within the tumor microenvironment. These conditions promote the regression of tumors in a T cell independent manner. During regression, macrophages prime T cells that subsequently provide systemic protection against recurrence. The potency of
Shakti P Pattanayak   +6 more
wiley   +1 more source

Activating transcription factor 4 regulates stearate-induced vascular calcification

open access: yesJournal of Lipid Research, 2012
Previously, we reported that stearate, a saturated fatty acid, promotes osteoblastic differentiation and mineralization of vascular smooth muscle cells (VSMC).
Masashi Masuda   +5 more
doaj   +1 more source

In vivo ATF4 reporter, tub-ATF4.5′UTR>dsRed responds to protein misfolding.

open access: yes, 2015
(A) The structure of the ATF4 translational activation reporter, tub-ATF4.5′UTR>dsRed. The dsRed ORF replaces that of ATF4, thereby reporting ATF4′s translation. (B-E) Validation of the reporter response in vivo.
Hyung Don Ryoo (440989)   +4 more
core   +1 more source

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