Results 51 to 60 of about 4,288,026 (254)

HPV16 E6/E7 upregulates HIF-2α and VEGF by inhibiting LKB1 in lung cancer cells

open access: yesTumor Biology, 2017
Long-term persistent infection of HPV16 E6/E7 is frequently associated with lung cancers, especially in non-smokers and in Asians. However, molecular mechanisms of HPV16 E6/E7 induction of lung cancer are not fully understood.
Jian-Shuang Shao   +8 more
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

open access: yesFEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante   +10 more
wiley   +1 more source

Regulation of the Rgs4 gene by the hypoxia inducible factors. [PDF]

open access: yes, 2012
The transcriptional response to hypoxia is critically dependent on the Hypoxia Inducible Factors HIF-1 and HIF-2, which have roles not only in development and cellular adaptation to low oxygen levels, but also in diseases such as cancer.
Olechnowicz, Sam
core  

Hypoxia-induced alternative splicing in endothelial cells [PDF]

open access: yes, 2012
Background: Adaptation to low oxygen by changing gene expression is vitally important for cell survival and tissue development. The sprouting of new blood vessels, initiated from endothelial cells, restores the oxygen supply of ischemic tissues.
Weigand, Julia E.   +11 more
core   +2 more sources

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Hypoxia‐inducible factor as a physiological regulator [PDF]

open access: yesExperimental Physiology, 2005
Hypoxia‐inducible factor (HIF) is a transcription complex which responds to changes in oxygen, providing cells with a master regulator that coordinates changes in gene transcription. HIF operates in all mammalian cell types and is ancient in evolutionary terms, being conserved in C. elegans and D. melanogaster.
openaire   +2 more sources

The role of hypoxia-inducible factors in tumorigenesis [PDF]

open access: yesCell Death & Differentiation, 2008
Hypoxia-inducible factors (HIFs) are essential mediators of the cellular oxygen-signaling pathway. They are heterodimeric transcription factors consisting of an oxygen-sensitive alpha subunit (HIF-alpha) and a constitutive beta subunit (HIF-beta) that facilitate both oxygen delivery and adaptation to oxygen deprivation by regulating the expression of ...
E B, Rankin, A J, Giaccia
openaire   +2 more sources

Tale of two transcription factors: NF-кB and HIF crosstalk [PDF]

open access: yes, 2013
Hypoxia-inducible factor is a key transcriptional factor involved in the cellular response to low levels of oxygen, hypoxia. Moreover, hypoxia-inducible factor has been recently associated with a role in inflammation and immunity.
Rocha, S., Bandarra, D.
core  

Expression of hypoxia inducible factor 1 alpha and its clinical significance in esophageal carcinoma: A meta-analysis

open access: yesTumor Biology, 2017
Many studies have analyzed the relationship between hypoxia inducible factor 1 alpha expression and its relation to differentiation, lymph node metastasis, and other clinicopathological variables of esophageal carcinoma, but the results are still ...
Shao Wu Jing, Jun Wang, Qing Xu
doaj   +1 more source

mRNA expression profile of selected oxygen sensing genes in the lung during recovery from chronic hypoxia

open access: yesBiological Research, 2013
This study analyzed the time dependence decay of the mRNA of selected genes important for the hypoxia response. The genes chosen were the two isoforms of hypoxia-inducible factors, the three isoforms of the prolyl hydroxylase domain protein, the vascular
Alice Panariti   +2 more
doaj   +1 more source

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