Results 71 to 80 of about 32,812 (263)

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

Cancer-associated fibroblasts-mediated ATF4 expression promotes malignancy and gemcitabine resistance in pancreatic cancer via the TGF-β1/SMAD2/3 pathway and ABCC1 transactivation

open access: yesCell Death and Disease, 2021
Cancer-associated fibroblasts (CAFs) contribute to malignant progression and chemoresistance in pancreatic ductal adenocarcinoma (PDAC). However, little is known about the underlying mechanism.
Lusheng Wei   +7 more
doaj   +1 more source

Polystyrene Nanoplastics Drive β‐Cell Dedifferentiation Through Dendritic Cell‐Intrinsic MHC‐I‐Dependent Inflammatory Crosstalk

open access: yesAdvanced Science, EarlyView.
Polystyrene nanoplastics disrupt pancreatic immune–endocrine homeostasis by promoting MHC‐I‐associated dendritic cell activation and inflammatory crosstalk with β cells. This immune remodeling drives β‐cell dedifferentiation, impairs insulin secretion, and aggravates metabolic dysfunction, revealing a previously unrecognized immunometabolic mechanism ...
Conghui Qiao   +10 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

Programmable Paracrine‐Mimetic Microneedle System for Temporal Regulation of Cardiac Repair

open access: yesAdvanced Science, EarlyView.
Temporal signaling is encoded into a programmable paracrine‐mimetic microneedle patch via tris(2,2'‐bipyridyl)dichlororuthenium(II) hexahydrate/sodium persulfate‐tuned hydrogel microparticles that deliver TGF‐β, IGF‐1, and VEGF over phase‐matched 7‐, 14‐, and 28‐day windows.
Yichen Dai   +18 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

Chemical Bond‐Orchestrated Energy Depletion to Augment Lung Cancer Chemo‐Immunotherapy

open access: yesAdvanced Science, EarlyView.
This study grafted dichloroacetic acid (DCA) into perylenediimide (PDI) skeleton via ionic or covalent bond to create novel metabolic agent PDIC‐AC and PDIC‐NAC, explicitly elaborated the underlying energy metabolism and therapeutic mechanism, and developed a promising strategy for energy metabolism‐targeting chemo‐immunotherapy by chemical bond ...
Xuejie Zhao   +5 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

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

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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