Results 101 to 110 of about 599,693 (212)

Hypoxia Decreases Mitochondrial ROS Production in Cells

open access: yesFree Radical Biology and Medicine
We re-examined the reported increase in mitochondrial ROS production during acute hypoxia in cells. Using the Amplex Ultrared/horseradish peroxidase assay we found a decrease, not increase, in hydrogen peroxide release from HEK293 cells under acute hypoxia, at times ranging from 1 min to 3 h.
Bijoya Sen   +2 more
openaire   +3 more sources

11LBA Cell reprogramming by hypoxia

open access: yesEuropean Journal of Cancer Supplements, 2009
Background: Low oxygen tension (hypoxia) is an important determinant in tumor progression. In this study we assess the prognostic value of an in vitro derived hypoxia gene signature in neuroblastoma patients. Material and Methods: L1-L2 regularization framework has been applied on gene expression profiles of 11 neuroblastoma cell lines to define the ...
L. Varesio   +5 more
openaire   +1 more source

Redox signaling during hypoxia in mammalian cells

open access: yesRedox Biology, 2017
Hypoxia triggers a wide range of protective responses in mammalian cells, which are mediated through transcriptional and post-translational mechanisms. Redox signaling in cells by reactive oxygen species (ROS) such as hydrogen peroxide (H2O2) occurs through the reversible oxidation of cysteine thiol groups, resulting in structural modifications that ...
Kimberly A. Smith   +2 more
openaire   +3 more sources

MicroRNA-133b Alleviates Hypoxia Injury by Direct Targeting on NOD-Like Receptor Protein 3 in Rat H9c2 Cardiomyocyte

open access: yesCardiology Research and Practice, 2019
Objective. MiR-133b was dysregulated in myocardial infarction. However, the role and mechanism of miR-133b in myocardial infarction remains unclear.
Yongmei Zhou, Hui Huang, Xiaolin Hou
doaj   +1 more source

Baicalin relieves hypoxia-aroused H9c2 cell apoptosis by activating Nrf2/HO-1-mediated HIF1α/BNIP3 pathway

open access: yesArtificial Cells, Nanomedicine, and Biotechnology, 2019
Background Myocardial ischemia is the main reason for ischemic heart disease. Baicalin is a plant-derived flavonoid with cardio-protective activity.
Hailiang Yu, Bin Chen, Qi Ren
doaj   +1 more source

Phosphorescence-based O2 sensing reveals size-dependent survival and motility of metastatic prostate cancer cells in self-generated hypoxia

open access: yesiScience
Summary: Cancer cells in solid tumors experience hypoxia, a condition of low O2 concentration, since their O2 demand exceeds the supply from the surrounding vasculature. However, how these cells adapt to hypoxia requires further elucidation. Here, we use
Noreen Hosny   +14 more
doaj   +1 more source

In the eye of the storm: T cell behavior in the inflammatory microenvironment. [PDF]

open access: yes, 2013
Coordinated unfolding of innate and adaptive immunity is key to the development of protective immune responses. This functional integration occurs within the inflamed tissue, a microenvironment enriched with factors released by innate and subsequently ...
Haas, R, Marelli-Berg, F, Mauro, C
core   +1 more source

Hypoxia promotes breast cancer cell invasion through HIF-1α-mediated up-regulation of the invadopodial actin bundling protein CSRP2

open access: yesScientific Reports, 2018
Hypoxia is a common feature of solid tumours that promotes invasion and metastatic dissemination. Invadopodia are actin-rich membrane protrusions that direct extracellular matrix proteolysis and facilitate tumour cell invasion.
Céline Hoffmann   +10 more
doaj   +1 more source

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