Results 51 to 60 of about 15,352 (140)

Hypoxia and the cytoskeleton

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic outlining the activation of hypoxia‐sensitive pathways, the influence of hypoxia and associated pathways on the cytoskeleton, and the impact of these on disease progression. Abstract A highly‐regulated and dynamic cytoskeleton is vital for functional cellular physiology and the maintenance of homeostasis.
Darragh Flood, Cormac T. Taylor
wiley   +1 more source

Reduced SH3RF3 May Protect Against Alzheimer's Disease by Lowering Microglial Pro‐Inflammatory Responses via Modulation of JNK and NFkB Signaling

Glia, Volume 74, Issue 7, July 2026.
SNPs in SH3RF3 decrease the age of onset of Alzheimer's disease (AD). Reduced SH3RF3 blunts human microglial JNK and NFkB signaling and downstream inflammatory cytokine production, which may partially explain how SH3RF3 SNPs protect against AD. ABSTRACT Understanding how high‐risk individuals are protected from Alzheimer's disease (AD) may illuminate ...
Ronak Patel, Rong Cheng, Christopher L. Cardona, Ellen Angeles, Gunjandeep Singh, Sabrina Miller, Archana Ashok, Andrew F. Teich, Angel Piriz, Aleyda Maldonado, Ivonne Z. Jiménez‐Velázquez, Richard Mayeux, Joseph H. Lee, Andrew A. Sproul   +13 more
wiley   +1 more source

Effect of the Mutual Interaction of GPNMB and LPAR1 on Cellular Motility and Tumorigenicity in Mammary Epithelial Cells

Pathology International, Volume 76, Issue 6, June 2026.
GPNMB and LPAR1 form a positive feedback loop enhancing LPA signaling. LPA–LPAR1 activates RhoA–ROCK, driving actin reorganization and cell motility. GPNMB–LPAR1 signaling promotes tumorigenic potential. ABSTRACT Glycoprotein non‐metastatic melanoma protein B (GPNMB) is a poor prognostic factor, which is highly expressed in many types of malignant ...
Minori Kimura, Yukari Okita, Erina Iwabuchi, Xinzhu Hong, Yumu Ichikawa, Manar A. Elhinnawi, Hironobu Sasano, Mitsuyasu Kato   +7 more
wiley   +1 more source

Purification and characterization of Rac 2. A cytosolic GTP-binding protein that regulates human neutrophil NADPH oxidase.

Journal of Biological Chemistry, 1992
Human neutrophils and other phagocytes generate superoxide anion (O2-) as a means of destroying ingested microorganisms. O2- is produced by an NADPH-consuming oxidase composed of membrane and cytosolic components. Activation of the NADPH oxidase is absolutely dependent upon GTP, indicating the requirement for a GTP-binding protein in this process.
U G, Knaus, P G, Heyworth, B T, Kinsella, J T, Curnutte, G M, Bokoch   +4 more
openaire   +2 more sources

Functions of J‐domain proteins in mitochondrial protein biogenesis

Protein Science, Volume 35, Issue 4, April 2026.
Abstract Mitochondrial biogenesis and functions depend on the import and assembly of more than 1000 proteins that are made as precursors on cytosolic ribosomes. The majority of these precursor proteins are transported from the ribosome to the translocase of the outer membrane (TOM complex), which constitutes the main entry site for mitochondrial ...
Vitasta Tiku, Georg Bossenz, Janine Kirstein, Thomas Becker   +3 more
wiley   +1 more source

Extracellular Signal-regulated Kinase and the Small GTP-binding Protein, Rac, Contribute to the Effects of Transforming Growth Factor-β1 on Gene Expression [PDF]

Journal of Biological Chemistry, 1996
The kinases and regulatory proteins that convey signals initiated by transforming growth factor-beta (TGF-beta) to the nucleus are poorly characterized. To study the role of the extracellular signal-regulated kinase (ERK) pathway in this process, we transiently transfected NIH 3T3 fibroblasts with TGF-beta-responsive luciferase reporter genes and ...
I, Mucsi, K L, Skorecki, H J, Goldberg
openaire   +2 more sources

The GPCR Connection: Linking Alzheimer's Disease and Glioblastoma

Journal of Cellular and Molecular Medicine, Volume 30, Issue 7, April 2026.
ABSTRACT Alzheimer's disease (AD) and glioblastoma multiforme (GBM) are biologically distinct age‐related brain disorders with opposing clinical phenotypes. AD is characterised by progressive neurodegeneration and cognitive decline, whereas GBM is characterised by aggressive cellular proliferation and a poor prognosis.
Ana B. Caniceiro, Sofia P. Agostinho, Luiz F. Piochi, Nícia Rosário‐Ferreira, Irina S. Moreira   +4 more
wiley   +1 more source

Suppl. Fig. S1 from Characterization of Novel Derivatives of MBQ-167, an Inhibitor of the GTP-binding Proteins Rac/Cdc42

, 2023
<p>Suppl. Fig. S1 shows percentage cell viability</p>
Suranganie Dharmawardhane, Cornelis P. Vlaar, Eliud Hernandez O'Farril, Marcelo G. Kazanietz, Mariana Cooke, Luis D. Borrero-Garcia, Tatiana Matos Gascot, Maria del Mar Maldonado, Ailed Cruz-Collazo, Julia I. Medina   +9 more
openaire   +1 more source

Monoaminylation in Human Health and Disease: State of the Field, Challenges, and Emerging Directions

Advanced Science, Volume 13, Issue 16, 18 March 2026.
This review delineates monoaminylation—serotonylation, dopaminylation, and histaminylation—as key post‐translational modifications beyond receptor signaling. It details their catalytic mechanisms, roles in gene expression and protein function, and implications in health and disease, aiming to bridge mechanistic insights with therapeutic potential ...
Yiqi Zhao, Hongli Zhang, Yating Yang, Wei‐Dong Chen, Yan‐Dong Wang   +4 more
wiley   +1 more source

GDP dissociation inhibitor prevents intrinsic and GTPase activating protein-stimulated GTP hydrolysis by the Rac GTP-binding protein.

Journal of Biological Chemistry, 1993
The majority of the GTP-binding proteins of the Ras superfamily hydrolyze GTP to GDP very slowly. A notable exception to this are the Rac proteins, which have intrinsic GTPase rates at least 50-fold those of Ras or Rho. A protein (or proteins) capable of inhibiting this GTPase activity exists in human neutrophil cytosol.
T H, Chuang, X, Xu, U G, Knaus, M J, Hart, G M, Bokoch   +4 more
openaire   +2 more sources