Results 41 to 50 of about 40,005 (218)

Phosphatases: The New Brakes for Cancer Development? [PDF]

open access: yes, 2012
The phosphatidylinositol 3-kinase (PI3K) pathway plays a pivotal role in the maintenance of processes such as cell growth, proliferation, survival, and metabolism in all cells and tissues.
Qingxiu Zhang, Francois X. Claret
core   +1 more source

Dual Role of Tamoxifen in Enhancing STING and CEACAM1 Expression to Prime a Favorable Tumor Microenvironment for Anti‐TIM3 Immunotherapy

open access: yesAdvanced Science, EarlyView.
Anti‐PD‐1/PD‐L1 blockade has revolutionized cancer immunotherapy, but is ineffective against endocrine‐treated (i.e., Tamoxifen), relapsed ER+ breast cancer (BC) patients. This study provides insight into the sub‐optimal response of ER+BCs to anti‐PD‐1/PD‐L1 blockade – highlighting the induction of STING and the CEACAM1/TIM3 axis after chronic ...
Marvin Angelo E Aberin   +20 more
wiley   +1 more source

Introducing Borsantrazole: A Trifunctional Boron‐Based Pyrazole That Extends the Lifespan of Amyotrophic Lateral Sclerosis Mice

open access: yesAdvanced Science, EarlyView.
Herein we report a boron‐based pyrazole, (Borsantrazole ‐ a small molecule that selectively targets oxidative stress) that significantly increases survival, reduces weight loss, delays disease onset, and affects global protein changes in the SOD1‐G37R mouse model of ALS.
Nitesh Sanghai   +9 more
wiley   +1 more source

Special Sensitization Pattern in Adenosine-Induced Myocardial Responses After Thyroxine-Treatment

open access: yesJournal of Pharmacological Sciences, 2003
Chronic thyroxine treatment reduces the susceptibility of atrial myocardium to adenosine. While the possible role of membrane adenosine receptors in this action is supported by several studies, the involvement of intracellular adenosine mechanisms has ...
Rudolf Gesztelyi   +5 more
doaj   +1 more source

Systemic Nanomechanical Single‐Cell Profiling Reveals Mechanophenotype Transitions Under Therapeutic Perturbation

open access: yesAdvanced Science, EarlyView.
Single‐cell mechanomics demonstrates that pharmacological perturbation changes cytoskeletal and cortical structure, suppressing cancer cell invasiveness. By integrating atomic force microscopy (AFM)‐based cortical measurements with stimulated emission depletion (STED)‐resolved adhesion and cytoskeletal organization, this approach identifies nanoscale ...
Minhee Ku   +4 more
wiley   +1 more source

Specificity determinants of phosphoprotein phosphatases controlling kinetochore functions

open access: yes, 2020
Kinetochores are instrumental for accurate chromosome segregation by binding to microtubules in order to move chromosomes and by delaying anaphase onset through the spindle assembly checkpoint (SAC).
Garvanska, Dimitriya H, Nilsson, Jakob
core   +1 more source

Serine/Threonine Phosphatases: Mechanism through Structure [PDF]

open access: yes, 2009
The reversible phosphorylation of proteins is accomplished by opposing activities of kinases and phosphatases. Relatively few protein serine/threonine phosphatases (PSPs) control the specific dephosphorylation of thousands of phosphoprotein substrates ...
Yigong Shi, Shi, Yigong
core   +1 more source

LRRK2 Kinase Activity and Biology are Not Uniformly Predicted by its Autophosphorylation and Cellular Phosphorylation Site Status

open access: yesFrontiers in Molecular Neuroscience, 2014
Missense mutations in the Leucine Rich Repeat protein Kinase 2 (LRRK2) gene are the most common genetic predisposition to develop Parkinson’s disease (PD) LRRK2 is a large multi-domain phosphoprotein with a GTPase domain and a serine/threonine protein ...
April eReynolds   +4 more
doaj   +1 more source

Genetic Ablation and Multi‐Omics Profiling Reveal CEP55 as a Key Driver of Tumorigenesis in Diverse Cancer Models

open access: yesAdvanced Science, EarlyView.
Genetic ablation of Cep55 in Pten‐deficient mouse models delays tumorigenesis. Integrated multi‐omics analyses (proteomics, phosphoproteomics, and spatial transcriptomics) reveal that CEP55 regulates oncogenic signaling (RAS/ERK, PI3K/AKT), integrin/FAK‐mediated adhesion, extracellular matrix (ECM) remodeling, and endocytosis.
Behnam Rashidieh   +22 more
wiley   +1 more source

Effects of protein kinase C and phosphoprotein phosphatase modulators on Ehrlich cell plasma membrane redox system activity [PDF]

open access: yes, 1996
Diacyl glycerols and phorbol esters, which activate protein kinases C, stimulated Ehrlich ascites tumor cell ferricyanide reductase activity. On the contrary, selective inhibition of active protein kinases C with bis-indolyl maleimide did not change the ...
Núñez de Castro, Ignacio   +4 more
core   +1 more source

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