Results 71 to 80 of about 678,452 (368)

Hypoxia-Induced Autophagy Is Involved in Radioresistance via HIF1A-Associated Beclin-1 in Glioblastoma Multiforme

Heliyon, 2023
Radioresistance is the major factor of glioblastoma multiforme (GBM) treatment failure and relapse. Hypoxia and autophagy are linked to radioresistance and poor prognosis in solid tumors, but mechanisms remain unknown.
Jielin Wei, Kuikui Zhu, Zhe Yang, Ying Zhou, Zihan Xia, Jinghua Ren, Yanxia Zhao, Gang Wu, Cuiwei Liu   +8 more
doaj   +1 more source

Interleukin-1β sequesters hypoxia inducible factor 2α to the primary cilium. [PDF]

, 2013
BACKGROUND: The primary cilium coordinates signalling in development, health and disease. Previously we have shown that the cilium is essential for the anabolic response to loading and the inflammatory response to interleukin-1β (IL-1β).
AC Lin, AK Wann, AK Wann, AM Malone, AR Sartori-Cintra, BL Thoms, BL Thoms, CA Clement, CA Clement, CF Chang, CJ Haycraft, CJ Haycraft, CR Thoma, D Kong, D Zhu, DA Hoey, DM Katschinski, E Verghese, EN Pugacheva, F Oeffner, GJ Pazour, HA Praetorius, J Kim, JB Catterall, JC Kim, JE Bohonowych, JE Lafont, JF Reiter, JH Moyer, JH Ryu, JM Gerdes, JR Marszalek, JT Eggenschwiler, KC Corbit, KC Corbit, L Schneider, M Windheim, MA Lancaster, MF Bijlsma, NV Prodromou, P Jaakkola, PD Taulman, PV Tran, R Rohatgi, RD Thornton, S Abdul-Majeed, S Kim, S Massinen, S Murakami, S Proulx-Bonneau, S Yang, SH Low, SM Nauli, SN Greer, SR McGlashan, SR McGlashan, T Caspary, TY Besschetnova, X Xue, Y Li, YJ Jung   +60 more
core   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source

Regulating cellular oxygen sensing by hydroxylation [PDF]

, 2017
Oxygen homeostasis under conditions of limited O2 supply requires hypoxia-dependent gene regulation. The transcription factor complex hypoxia-inducible factor 1 (HIF-1) has been recognized as the master regulator that mediates the adaptational genetic ...
Fandrey, Joachim, Gassmann, Max, Gorr, Thomas A.   +2 more
core  

The key role of nitric oxide in hypoxia: hypoxic vasodilation and energy supply-demand matching [PDF]

, 2013
Significance: a mismatch between energy supply and demand induces tissue hypoxia with the potential to cause cell death and organ failure. Whenever arterial oxygen concentration is reduced, increases in blood flow - 'hypoxic vasodilation' - occur in an ...
Alex Dyson, Audibert G, Berne RM, Blitzer ML, Boutilier RG, Brown IP, Devlin C, Furukawa K, Hall JE, Heyes MP, Jekabsone A, Lehninger A, Leone AM, Louis CA, Martin Feelisch, Mervyn Singer, Michele Umbrello, Modin A, Munk VC, Pohl U, Rengasamy A, Rengasamy A, Vallance P, Whorton AR   +23 more
core   +1 more source

Hypoxia-Inducible Factor-1 in Physiological and Pathophysiological Angiogenesis: Applications and Therapies

BioMed Research International, 2015
The cardiovascular system ensures the delivery of oxygen and nutrients to all cells, tissues, and organs. Under extended exposure to reduced oxygen levels, cells are able to survive through the transcriptional activation of a series of genes that ...
A. Zimna, M. Kurpisz
semanticscholar   +1 more source

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

HIF-1α, a novel piece in the NF-κB puzzle [PDF]

, 2015
Hypoxia, or low oxygen availability, is an important physiological stimulus for multicellular organisms. Molecularly, hypoxia induces a transcriptional programme directed at restoration of oxygen homeostasis and cellular survival.
Bandarra, Daniel, Rocha, Sonia
core   +3 more sources

Hypoxia‐inducible factor 1 and cancer pathogenesis [PDF]

IUBMB Life, 2008
AbstractHypoxia‐inducible factor 1 (HIF‐1) is a transcriptional activator that mediates adaptive responses to hypoxia. HIF‐1 activity is increased in the majority of human cancers as a result of genetic alterations and intratumoral hypoxia. HIF‐1 activates the transcription of genes that increase O2 availability by stimulating angiogenesis or that ...
openaire   +2 more sources

Reduced vascular leakage correlates with breast carcinoma T regulatory cell infiltration but not with metastatic propensity

Molecular Oncology, EarlyView.
A mouse model for vascular normalization and a human breast cancer cohort were studied to understand the relationship between vascular leakage and tumor immune suppression. For this, endothelial and immune cell RNAseq, staining for vascular function, and immune cell profiling were employed.
Liqun He, Chiara Testini, Neda Hekmati, Altea Bonello, Aglaia Schiza, Emmanuel Nwadozi, Mia Phillipson, Carina Strell, Michael Welsh   +8 more
wiley   +1 more source