Results 81 to 90 of about 19,138 (225)

Bilayer tension-induced clustering of the UPR sensor IRE1

open access: yes, 2023
The endoplasmic reticulum serves as a center for protein quality control, where chaperones and foldases facilitate protein folding. IRE1 is a transmembrane protein that transduces proteotoxic stress signals by forming clusters and activating the ...
Hossain, Md Zobayer
core   +1 more source

Iloperidone treatment mitigates the Juvenile Huntington's Disease phenotype possibly via Sigma‐1 Receptor Modulation

open access: yesThe FEBS Journal, EarlyView.
We investigated the potential of iloperidone as an activator of Sigma‐1 receptor (S1R) neuroprotective function in juvenile Huntington's disease (jHD). We tested iloperidone on cortical neurons differentiated from patient‐derived iPSCs, demonstrating that it acts as a S1R agonist, decreasing apoptosis, huntingtin aggregation, and oxidative stress ...
Ersilia Fornetti   +11 more
wiley   +1 more source

Interferon regulatory factor 4 mediates nonenzymatic IRE1 dependency in multiple myeloma cells.

open access: yesPLoS Biology
Multiple myeloma (MM) arises through oncogenic transformation of immunoglobulin-secreting plasma cells. MM often co-opts the central endoplasmic reticulum (ER)-stress mitigator, inositol-requiring enzyme 1 (IRE1), to sustain malignant growth.
Ioanna Oikonomidi   +9 more
doaj   +1 more source

Sigma-1 receptor chaperone at the ER-mitochondrion interface mediates the mitochondrion-ER-nucleus signaling for cellular survival.

open access: yesPLoS ONE, 2013
The membrane of the endoplasmic reticulum (ER) of a cell forms contacts directly with mitochondria whereby the contact is referred to as the mitochondrion-associated ER membrane or the MAM.
Tomohisa Mori   +3 more
doaj   +1 more source

Xbp1-Independent Ire1 Signaling Is Required for Photoreceptor Differentiation and Rhabdomere Morphogenesis in Drosophila

open access: yesCell Reports, 2013
The unfolded protein response (UPR) is composed by homeostatic signaling pathways that are activated by excessive protein misfolding in the endoplasmic reticulum.
Dina S. Coelho   +7 more
doaj   +1 more source

Expression of IGFBP6, IGFBP7, NOV, CYR61, WISP1 and WISP2 genes in U87 glioma cells in glutamine deprivation condition [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2016
We have studied gene expression of insulin-like growth factor binding proteins in U87 glioma cells upon glutamine deprivation depending on the inhibition of IRE1 (inositol requiring enzyme-1), a central mediator of endoplasmic reticulum stress.
O. H. Minchenko   +3 more
doaj   +1 more source

Proteostasis in the regulation of pancreatic islet cell plasticity

open access: yesJournal of Diabetes Investigation, EarlyView.
Adaptive proteostasis integrates protein synthesis, folding, trafficking, and degradation through ISR, UPR, ER stress responses, autophagy, and proteasomal degradation. In pancreatic islet cells, this coordinated network preserves protein quality, secretory function, proliferation, and survival, enabling adaptation to metabolic stress and aging while ...
Jun Shirakawa
wiley   +1 more source

Additional file 5 of RNA sequencing identifies novel regulated IRE1-dependent decay targets that affect multiple myeloma survival and proliferation

open access: yes, 2022
Additional file 5: Fig. S3. Validation of putative IRE1 substrates. Exon-usage plots of the 28 remaining putative mRNAs, showing the number of reads in mock (red) and IRE1-treated (blue) samples. The black arrows represent the site of primers used in the
Quwaider, Dalia   +17 more
core   +1 more source

Innovations in Obesity Treatment: Beyond Adipose Tissue Dysfunction

open access: yesObesity Reviews, EarlyView.
Obesity drives chronic inflammation, insulin resistance, type 2 diabetes, and cancer development through adipocyte dysfunction. Addressing this multisystemic disorder requires integrated strategies beyond diet and exercise, such as thermogenesis activation via menthol or capsinoids and appetite control through GLP‐1/GIP agonists and neuromodulation to ...
Jesica Martínez‐Godfrey   +7 more
wiley   +1 more source

Sigma-1 receptors stabilize IRE1.

open access: yes, 2013
(a) Sig-1R knockdown decreases phosphorylated IRE1 (pIRE1) in various types of cells when cells are under ER stress. Two days after the transfection of control siRNA (siCon) or Sig-1R siRNA (siSig-1R), cells were treated with thapsigargin (Tg) at 1 µM ...
Tomohisa Mori (474320)   +3 more
core   +1 more source

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