Results 31 to 40 of about 375,784 (265)

Hypoxia, stem cells and bone tumor [PDF]

open access: yesCancer Letters, 2011
Normal oxygen level is critical for niches that together with other components of the niche play vital role in regulating stem or tumor cells behavior. Hypoxia plays an important role in normal development and disease progression, including the growth of solid tumors.
Wen, Zeng   +4 more
openaire   +2 more sources

Hypoxia enhances the antiglioma cytotoxicity of B10, a glycosylated derivative of betulinic acid. [PDF]

open access: yesPLoS ONE, 2014
B10 is a glycosylated derivative of betulinic acid with promising activity against glioma cells. Lysosomal cell death pathways appear to be essential for its cytotoxicity.
Sebastian Fischer   +11 more
doaj   +1 more source

Endothelial Cell Senescence in Marfan Syndrome: Pathogenesis and Therapeutic Potential of TGF‐β Pathway Inhibition

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Marfan syndrome (MFS) is a heritable connective tissue disorder caused by mutations in the Fibrillin‐1 gene, which encodes the extracellular matrix protein fibrillin‐1.
Yuhao Chen   +12 more
doaj   +1 more source

Comparative and Experimental Studies on the Genes Altered by Chronic Hypoxia in Human Brain Microendothelial Cells

open access: yesFrontiers in Physiology, 2017
Background : Hypoxia inducible factor 1 alpha (HIF1A) is a master regulator of acute hypoxia; however, with chronic hypoxia, HIF1A levels return to the normoxic levels.
Eugenia Mata-Greenwood   +4 more
doaj   +1 more source

The impact of hypoxia on B cells in COVID-19

open access: yesEBioMedicine, 2022
Summary: Background: Prominent early features of COVID-19 include severe, often clinically silent, hypoxia and a pronounced reduction in B cells, the latter important in defence against SARS-CoV-2.
Prasanti Kotagiri   +21 more
doaj   +1 more source

Hypoxia, Metabolism and Immune Cell Function [PDF]

open access: yesBiomedicines, 2018
Hypoxia is a hallmark of inflamed, infected or damaged tissue, and the adaptation to inadequate tissue oxygenation is regulated by hypoxia-inducible factors (HIFs). HIFs are key mediators of the cellular response to hypoxia, but they are also associated with pathological stress such as inflammation, bacteriological infection or cancer.
Krzywinska, Ewelina   +1 more
openaire   +3 more sources

Hypoxia and Regulation of Cancer Cell Stemness [PDF]

open access: yes, 2013
Spontaneous tumors often contain heterogeneous populations of tumor cells with different tumor-initiating potentials or cancer cell "stemness." Clonal heterogeneity can be traced to specific locations inside a tumor where clones with different metastatic capabilities are identified, suggesting that the tumor microenvironment can exert a significant ...
Zhong, Yun, Qun, Lin
openaire   +2 more sources

Protection and mechanism of oxygen glucose deprivation exposed astrocytes by nuclear factor⁃erythroid 2⁃related factor 2 signal pathway activation

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery
Objective To analyze the protective effect and mechanism of nuclear factor⁃erythroid 2⁃related factor 2 (Nrf2) signal pathway agonist tertiary butylhydroquinone (tBHQ) on astrocytes under oxygen glucose deprivation (OGD).
GAO Yu⁃tian   +3 more
doaj   +1 more source

Resistance of Hypoxic Cells to Ionizing Radiation Is Mediated in Part via Hypoxia-Induced Quiescence

open access: yesCells, 2021
Double strand breaks (DSBs) are highly toxic to a cell, a property that is exploited in radiation therapy. A critical component for the damage induction is cellular oxygen, making hypoxic tumor areas refractory to the efficacy of radiation treatment ...
Apostolos Menegakis   +9 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

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