Results 101 to 110 of about 57,100 (255)

HIF-2α induces aggravated intervertebral disc degeneration by activating the IL-6/hepcidin-FPN1 axis and promoting ferroptosis in nucleus pulposus cells

Scientific Reports
Intervertebral disc degeneration (IVDD) is one of the main causes of spinal diseases and chronic low back pain. Nucleus pulposus (NP) cells are in a hypoxic environment, and their functions may be regulated by the hypoxia-inducible factor (HIF) family ...
Li-Ming He, Jian Gao, Qiang Chang, Zhuo Ma, Xiao-Ming Guan, Wen-Bo Liu, Zhen-Wu Gao, Lei-Min Xi, Yue Zhou, Hao-Yu Feng   +9 more
doaj   +1 more source

HER2 regulates HIF-2α and drives an increased hypoxic response in breast cancer

Breast Cancer Research, 2019
Background Tumour hypoxia is a driver of breast cancer progression associated with worse prognosis and more aggressive disease. The cellular response to hypoxia is mediated by the hypoxia-inducible transcription factors HIF-1 and HIF-2, whose ...
Edward J. Jarman, Carol Ward, Arran K. Turnbull, Carlos Martinez-Perez, James Meehan, Chrysi Xintaropoulou, Andrew H. Sims, Simon P. Langdon   +7 more
doaj   +1 more source

Sequential Regulation of Neurovascular Bone Regeneration in Large Bone Defects Using Black Phosphorus‐Europium Nanosheet Integrated TPMS Biomimetic Scaffold with Photo‐Controlled Ion Release

Advanced Science, EarlyView.
TPBE scaffolds, in conjunction with mild photothermal effects, effectively activate the PI3K/Akt signaling cascade, thereby promoting early neuronal differentiation and neurite growth. Short‐term (12 W) in vivo implantation studies revealed no significant pathological damage to major organs, providing preliminary evidence of the material's excellent ...
Bingqian Wang, Yuping Zhang, Xiaoning Su, Ning Liu, Hui Zeng, Bo Yang, Yang Xue, Fang Guo, Changkui Liu   +8 more
wiley   +1 more source

Interaktionsanalyse der Hypoxie-induzierbaren Transkriptionsfaktoren HIF-2α und ARNT unter Berücksichtigung der Einflussnahme durch den HIF-2α-Liganden N-(3-Chloro-5-fluorophenyl)-4-nitrobenzo[c][1,2,5]oxadiazol-5-amine und verschiedener HIF-2α-Mutationen [PDF]

, 2018
Unter Hypoxie werden die sog. Hypoxie-induzierbaren Transkriptionsfaktoren (HIFs) in Zellen aktiviert, die im Zellkern an die DNA binden und eine Genexpression auslösen. HIFs sind in verschiedene physiologische (z. B.
Pisarenko, Irina
core  

Upadacitinib Restrains the Pathogenic Fitness of CD4+ T Cells and Aberrant B Cell Programming in Optic Neuritis

Advanced Science, EarlyView.
Single‐cell profiling and functional perturbation reveal coordinated JAK1‐pSTAT3 downstream programs in optic neuritis, including MCL1‐dependent fitness of pathogenic CD4+ Tem cells and glycolysis‐linked, cholesterol‐sensitive B‐cell responses associated with RORA. Upadacitinib disrupts this reciprocal T‐B‐cell circuit and alleviates neuroinflammation,
Gengchen Jiang, Qi Jiang, Lian Han, Yue Peng, Xingyu Liu, Tong Yang, Hao Huang, Jiaying Liu, Yuan Gao, Hui Yang, Wenjun Zou, Zhaohuai Li, Wenru Su   +12 more
wiley   +1 more source

AIF1+CSF1R+ MSCs, induced by TNF‐α, act to generate an inflammatory microenvironment and promote hepatocarcinogenesis

Hepatology, EarlyView., 2022
Mesenchymal stem cells subset, educated by TNF‐α, are involved to generate inflammatory microenvironment and promote hepatocarcinogenesis Abstract Background and Aims Increasing evidence suggests that mesenchymal stem cells (MSCs) home to injured local tissues and the tumor microenvironment in the liver.
Chen Zong, Yan Meng, Fei Ye, Xue Yang, Rong Li, Jinghua Jiang, Qiudong Zhao, Lu Gao, Zhipeng Han, Lixin Wei   +9 more
wiley   +1 more source

Hypoxia-inducible factor 2α (HIF-2α) heterozygous-null mice exhibit exaggerated carotid body sensitivity to hypoxia, breathing instability, and hypertension

, 2011
Cardiorespiratory functions in mammals are exquisitely sensitive to changes in arterial O 2 levels. Hypoxia-inducible factors (e.g., HIF-1 and HIF-2) mediate transcriptional responses to reduced oxygen availability ...
Ganesh K. Kumar, Joseph A. Garcia, Ying-Jie Peng, Shakil A. Khan, Damodara R. Vaddi, Jayasri Nanduri, Brian Kinsman, Gregg L. Semenza, Nanduri R. Prabhakar, Guoxiang Yuan, Ning Wang   +10 more
core   +1 more source

Macrophage Dab1 Links Early Hypoxia to Adaptive Angiogenesis to Drive Peripheral Nerve Repair

Advanced Science, EarlyView.
Schematic diagram illustrating the Dab1‐linked hypoxia signaling pathway that accelerates angiogenesis and consequent nerve regeneration. Following PNI, a hypoxic microenvironment develops. Hypoxia induces macrophage Dab1 phosphorylation, resulting in NHE‐1 upregulation, HIF‐1α stabilization, and VEGF‐A expression. This cascade promotes angiogenesis in
Xiongyao Zhou, Fan Zhang, Jiangbo Wang, Huiyuan Wang, Zongqiang Wang, Qianqian Wang, Chuikai Meng, Jialu Sun, Han Wang, Weiye Li, Ziyi Zhao, Le Qi, Xiaosong Gu, Shusen Cui, Rangjuan Cao   +14 more
wiley   +1 more source

Acetate controls CBP/HIF-2α interactions during stress.

, 2015
(A) Detection of endogenous HIF-1α or HIF-2α in whole cell extracts by immunoblotting after the indicated period of hypoxia exposure. Alpha-tubulin levels for each immunoblot are also shown. (B) Same as (A) except after low glucose exposure. (C) Cellular
Rui Chen (95310), Jason S. Nagati (692763), Robert D. Gerard (106674), Min Xu (15203), Joseph A. Garcia (692766), Richard T. Hogg (692764), Alok Das (692765)   +6 more
core   +1 more source

Microglial TSPAN4‐Dependent Migrasomes Promote Pathological Retinal Neovascularization via Immune‐Vascular Crosstalk

Advanced Science, EarlyView.
Combined high‐glucose and hypoxic stress switches microglia into a TSPAN4‐dependent migrasome‐producing state. These migrasomes deliver pro‐angiogenic signals to endothelial cells, activating HIF‐1α/VEGF signaling, disrupting vascular junctions, and fueling pathological neovascularization. This work uncovers migrasome‐mediated immune‐vascular crosstalk
Jingyi Xu, Jingfan Wang, Pengfei Ge, Qinyuan Gu, Hongying Li, Yuanyuan Fan, Haiyue Xie, Yangyang Lu, Yifan Lin, Xinjing Wu, Chengkun Wang, Ping Xie, Zizhong Hu   +12 more
wiley   +1 more source