Results 51 to 60 of about 277,071 (303)

Protection against gamma-radiation injury by protein tyrosine phosphatase 1B

Redox Biology, 2018
Protein tyrosine phosphatase 1B (PTP1B) is widely expressed in mammalian tissues, in particular in immune cells, and plays a pleiotropic role in dephosphorylating many substrates.
Marina Mojena, María Pimentel-Santillana, Adrián Povo-Retana, Victoria Fernández-García, Silvia González-Ramos, Patricia Rada, Alberto Tejedor, Daniel Rico, Paloma Martín-Sanz, Angela M. Valverde, Lisardo Boscá   +10 more
doaj   +1 more source

Protein tyrosine phosphatases: structure–function relationships [PDF]

The FEBS Journal, 2008
Structural analysis of protein tyrosine phosphatases (PTPs) has expanded considerably in the last several years, producing more than 200 structures in this class of enzymes (from 35 different proteins and their complexes with ligands). The small–medium size of the catalytic domain of ∼280 residues plus a very compact fold makes it amenable to cloning ...
Tabernero, Lydia, Aricescu, A. Radu, Jones, E. Yvonne, Szedlacsek, Stefan E.   +3 more
openaire   +2 more sources

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

Molecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang, Qian Sun, Daniel Novak, Lei Zhu, Juliane Poelchen, Tamara Steinfass, Yiman Wang, Viktor Umansky, Jochen Utikal   +8 more
wiley   +1 more source

Mutations that impair Eyes absent tyrosine phosphatase activity in vitro reduce robustness of retinal determination gene network output in Drosophila. [PDF]

PLoS ONE, 2017
A limited collection of signaling networks and transcriptional effectors directs the full spectrum of cellular behaviors that comprise development. One mechanism to diversify regulatory potential is to combine multiple biochemical activities into the ...
Trevor L Davis, Charlene S L Hoi, Ilaria Rebay   +2 more
doaj   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Protein tyrosine phosphatase-1B modulates pancreatic β-cell mass.

PLoS ONE, 2014
Protein tyrosine phosphatase 1B (PTP1B) is a negative regulator of the insulin signalling pathway. It has been demonstrated that PTP1B deletion protects against the development of obesity and Type 2 Diabetes, mainly through its action on peripheral ...
Rebeca Fernandez-Ruiz, Elaine Vieira, Pablo M Garcia-Roves, Ramon Gomis   +3 more
doaj   +1 more source

Chemical inhibition of bacterial protein tyrosine phosphatase suppresses capsule production. [PDF]

PLoS ONE, 2012
Capsule polysaccharide is a major virulence factor for a wide range of bacterial pathogens, including Streptococcus pneumoniae. The biosynthesis of Wzy-dependent capsules in both gram-negative and -positive bacteria is regulated by a system involving a ...
Alistair J Standish, Angela A Salim, Hua Zhang, Robert J Capon, Renato Morona   +4 more
doaj   +1 more source

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

Molecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken, Andrea Abel Gutierrez, Imke van Rossum, Cornelia G. Spruijt, Michiel Vermeulen, Guido van Mierlo, Blanca Scheijen, Annemiek B. van Spriel   +7 more
wiley   +1 more source

Inhibition of the tyrosine phosphatase SHP-2 suppresses angiogenesis in vitro and in vivo [PDF]

, 2007
Endothelial cell survival is indispensable to maintain endothelial integrity and initiate new vessel formation. We investigated the role of SHP-2 in endothelial cell survival and angiogenesis in vitro as well as in vivo.
Alavi A, Barbara Walzog, Bennett AM, Brooks PC, Chan RJ, Chang F, Chen J, Christian Plank, Crompton T, Cunnick JM, Distler JH, Florian Krötz, Frisch SM, Hadari YR, Hae-Young Sohn, Hanna Mannell, Hu Y, Huang P, Ivins Zito C, Kontaridis MI, Krotz F, Krotz F, Krotz F, Krotz F, Leopold Groesser, Munoz-Chapuli R, Neel BG, Neel BG, Nicole Hellwig, Noguchi T, Nor JE, Ong SH, O’Brien CD, Papetti M, Plank C, Qi JH, Qi JH, Qu CK, Ren Y, Saxton TM, Shi ZQ, Slater EP, Tang TL, Thakker GD, Tomanek RJ, Torsten Gloe, Ulrich Pohl, Wu CJ, Yart A, Zhang SQ, Zhang SQ   +50 more
core   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source