Results 51 to 60 of about 1,633,210 (336)

Isolation of a Psychrotolerant and UV-C-Resistant Bacterium from Elephant Island, Antarctica with a Highly Thermoactive and Thermostable Catalase

Microorganisms, 2020
Microorganisms present in Antarctica have to deal not only with cold temperatures but also with other environmental conditions, such as high UV radiation, that trigger the generation of reactive oxygen species.
María T. Monsalves, Gabriela P. Ollivet-Besson, Maximiliano J. Amenabar, Jenny M. Blamey   +3 more
doaj   +1 more source

Extracellular vesicles transfer nuclear Abl-dependent and radiation-induced miR-34c into unirradiated cells to cause bystander effects. [PDF]

, 2018
Ionizing radiation (IR) not only activates DNA damage response (DDR) in irradiated cells but also induces bystander effects (BE) in cells not directly targeted by radiation.
Chan, Josolyn, Hwang, Amini, Rastogi, Shubhra, Wang, Jean YJ   +3 more
core  

NADPH oxidase as a therapeutic target in Alzheimer\u27s disease [PDF]

, 2008
At present, available treatments for Alzheimer\u27s disease (AD) are largely unable to halt disease progression. Microglia, the resident macrophages in the brain, are strongly implicated in the pathology and progressively degenerative nature of AD ...
Block, Michelle L
core   +4 more sources

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

Multistationary and Oscillatory Modes of Free Radicals Generation by the Mitochondrial Respiratory Chain Revealed by a Bifurcation Analysis [PDF]

, 2012
The mitochondrial electron transport chain transforms energy satisfying cellular demand and generates reactive oxygen species (ROS) that act as metabolic signals or destructive factors.
Mark F. Schumaker, Mark Friedman, Marta Cascante, Massimo Trucco, Philip E. Bourne, Tatyana V. Votyakova, Vitaly A. Selivanov   +6 more
core   +5 more sources

Patient‐specific pharmacogenomics demonstrates xCT as predictive therapeutic target in colon cancer with possible implications in tumor connectivity

Molecular Oncology, EarlyView.
This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker, Keren Zohar, Martin Böttcher, Thomas Wartmann, Henry Freudenstein, Maximilian Doelling, Mihailo Andric, Wenjie Shi, Or Kakhlon, Katrin Hippe, Beatrix Jahnke, Dimitrios Mougiakakos, Franziska Baenke, Daniel Stange, Roland S. Croner, Michal Linial, Ulf D. Kahlert   +16 more
wiley   +1 more source

Role of surface charge and oxidative stress in cytotoxicity of organic monolayer-coated silicon nanoparticles towards macrophage NR8383 cells [PDF]

, 2010
Background - Surface charge and oxidative stress are often hypothesized to be important factors in cytotoxicity of nanoparticles. However, the role of these factors is not well understood.
Alink, G.M., Bhattacharjee, S., Evers, N.M., Haan, L.H.J., de, Jiang, X., Marcelis, A.T.M., Rietjens, I.M.C.M., Zuilhof, H.   +7 more
core   +2 more sources

Feasibility of a ctDNA multigenic panel for non‐small‐cell lung cancer early detection and disease surveillance

Molecular Oncology, EarlyView.
Plasma‐based detection of actionable mutations is a promising approach in lung cancer management. Analysis of ctDNA with a multigene NGS panel identified TP53, KRAS, and EGFR as the most frequently altered, with TP53 and KRAS in treatment‐naïve patients and TP53 and EGFR in previously treated patients.
Giovanna Maria Stanfoca Casagrande, Marcela de Oliveira Silva, Mariana Bisarro dos Reis, Rodrigo de Oliveira Cavagna, Luciane Sussuchi, Icaro Alves Pinto, Natalia Zampieri Pontes, Rodrigo Sampaio Chiarantano, Flavio Augusto Ferreira da Silva, Pedro de Marchi, Letícia Ferro Leal, Rui M. Reis   +11 more
wiley   +1 more source

Nox2 redox signaling maintains essential cell populations in the brain. [PDF]

, 2011
Reactive oxygen species (ROS) are conventionally classified as toxic consequences of aerobic life, and the brain is particularly susceptible to ROS-induced oxidative stress and damage owing to its high energy and oxygen demands.
Chang, Christopher J, Dickinson, Bryan C, Peltier, Joseph, Schaffer, David V, Stone, Daniel   +4 more
core  

A p38MAPK/MK2 signaling pathway leading to redox stress, cell death and ischemia/reperfusion injury [PDF]

, 2014
Background Many diseases and pathological conditions are characterized by transient or constitutive overproduction of reactive oxygen species (ROS).
Ashraf, Muhammad Imtiaz, Brandacher, Gerald, Dragun, Duska, Ebner, Matthias, Enthammer, Marion, Haller, Martina, Hermann, Martin, Khalid, Sana, Koziel, Katarzyna, Santer, Peter, Schwelberger, Hubert, Sickinger, Stephan, Soleiman, Afschin, Steger, Christina, Sucher, Robert, Troppmair, Jakob, Vallant, Stephanie, Wallner, Christoph   +17 more
core   +2 more sources