Results 101 to 110 of about 232,963 (342)

Novel Evolutionarily Conserved Oncogene COA4 is Driven by KRAS Mutant and Promotes Cancer Metastasis Through Dual Mitochondrial Metabolism‐Dependent and ‐Independent Mechanisms

open access: yesAdvanced Science, EarlyView.
In KRAS‐mutant tumors, KRAS transcriptionally upregulates COA4 via the PI3K/AKT/E2F1 axis, promoting metastasis. Mechanistically, COA4 enhances tumor cell migration through dual pathways: within mitochondria, it boosts oxidative phosphorylation; in the cytoplasm, it binds and activates CDC42 to stimulate pseudopodia formation.
Xingzhao Ji   +14 more
wiley   +1 more source

Ectopic A-lattice seams destabilize microtubules [PDF]

open access: yes, 2014
Natural microtubules typically include one A-lattice seam within an otherwise helically symmetric B-lattice tube. It is currently unclear how A-lattice seams influence microtubule dynamic instability.
A des Georges   +54 more
core   +1 more source

Targeting Histamine H4 Receptor in the Rostral Ventromedial Medulla to Relieve Hypertension

open access: yesAdvanced Science, EarlyView.
H4R and its downstream TRPV1 channel mediate the excitatory effect of TMN histaminergic afferent inputs on GABAergic sympathoinhibitory neurons in RVMM. Intranasal delivery of selective H4R agonist VUF 8430 suppresses renal sympathetic outflow and elicits sustained depressor and bradycardia responses in SHRs and CUMS‐induced hypertensive rats ...
Ying Shi   +18 more
wiley   +1 more source

Flux Analysis in Process Models via Causality

open access: yes, 2010
We present an approach for flux analysis in process algebra models of biological systems. We perceive flux as the flow of resources in stochastic simulations. We resort to an established correspondence between event structures, a broadly recognised model
Kahramanoğullari, Ozan
core   +2 more sources

Phosphorylation stoichiometries of human eukaryotic initiation factors. [PDF]

open access: yes, 2014
Eukaryotic translation initiation factors are the principal molecular effectors regulating the process converting nucleic acid to functional protein. Commonly referred to as eIFs (eukaryotic initiation factors), this suite of proteins is comprised of at ...
Andaya, Armann   +4 more
core   +2 more sources

Allele‐Specific Regulation of PAXIP1‐AS1 by SMC3/CEBPB at rs112651172 in Psychiatric Disorders Drives Synaptic and Behavioral Dysfunctions in Mice

open access: yesAdvanced Science, EarlyView.
This study identifies a functional noncoding variant, rs112651172 (C/G), that drives allele‐specific expression of PAXIP1‐AS1 in monozygotic twin pairs discordant for schizophrenia and bipolar disorder. The risk G allele enhances CEBPB binding, leading to lncRNA upregulation, CNTNAP3 derepression, and synaptic and behavioral deficits in mice.
Chaoying Ni   +14 more
wiley   +1 more source

Structural Insights into the Regulation Mechanism of Small GTPases by GEFs

open access: yesMolecules, 2019
Small GTPases are key regulators of cellular events, and their dysfunction causes many types of cancer. They serve as molecular switches by cycling between inactive guanosine diphosphate (GDP)-bound and active guanosine triphosphate (GTP)-bound states ...
Sachiko Toma-Fukai, Toshiyuki Shimizu
doaj   +1 more source

The hierarchical assembly of septins revealed by high-speed AFM

open access: yesNature Communications, 2020
Septins are GTP-binding proteins involved in diverse cellular processes including division, polarity maintenance and membrane remodeling. Here authors use high-speed atomic force microscopy to show that assembly of septin filaments is a diffusion-driven ...
Fang Jiao   +4 more
doaj   +1 more source

MAPping out distribution routes for kinesin couriers [PDF]

open access: yes, 2013
In the crowded environment of eukaryotic cells, diffusion is an inefficient distribution mechanism for cellular components. Long-distance active transport is required and is performed by molecular motors including kinesins.
*Ackmann   +235 more
core   +1 more source

Estrogen Alleviates Sevoflurane‐Induced Neurotoxicity by Inhibiting ERα‐Tau Binding

open access: yesAdvanced Science, EarlyView.
Sevoflurane‐induced neurotoxicity exhibits sex differences, and estrogen can mitigate these effects; however, its protective action appears to be time‐window dependent, which may be related to the competitive binding of estrogen and Tau to ERα. Abstract Sevoflurane‐induced neurotoxicity is age‐dependent, but the role of sex differences is unclear ...
Feixiang Li   +8 more
wiley   +1 more source

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