نتایج جستجو برای: 1α
تعداد نتایج: 13691 فیلتر نتایج به سال:
The transcription factor HIF-1α is essential for cells to rapidly adapt to low oxygen levels (hypoxia). HIF-1α is frequently deregulated in cancer and correlates with poor patient prognosis. Here, we demonstrate that the deubiquitinase Cezanne regulates HIF-1α homeostasis. Loss of Cezanne decreases HIF-1α target gene expression due to a reduction in HIF-1α protein levels. Surprisingly, although...
The aim of this study was to test whether the transcriptional coactivator peroxisome proliferator-activated receptor (PPAR)-γ coactivator (PGC)1α regulates the content of pyruvate dehydrogenase (PDH)-E1α and influences PDH activity through regulation of pyruvate dehydrogenase kinase-4 (PDK4) expression and subsequently PDH phosphorylation. PGC-1α whole body knockout (KO), muscle-specific PGC-1α...
Hypoxia-inducible factor-1α (HIF-1α) induces tumor proliferation, angiogenesis and metastasis. Reactive oxygen species, hypoxia, and growth factor stimulation induce HIF-1α, and the augmented HIF-1α activity confers upon cancer cells the ability to adapt to microenvironments. Oltipraz is a cancer chemopreventive agent and has an inhibitory effect on angiogenesis and tumor growth. Nonetheless, t...
OBJECTIVE Aggregation of α-synuclein (α-syn) and α-syn cytotoxicity are hallmarks of sporadic and familial Parkinson disease (PD), with accumulating evidence that prefibrillar oligomers and protofibrils are the pathogenic species in PD and related synucleinopathies. Peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), a key regulator of mitochondrial biogenesis and cellular ene...
This study aimed to determine the correlation between HIF-1α and miR-27a expression and to evaluate the effect of inhibition of HIF-1α expression on miR-27a expression and drug resistance in gastric cancer (GC). In the present study, real time-PCR and Western blot were performed to detect the expression of HIF-1α in GC tissues and cell lines. Then, OCUM-2MD3/L-OHP cells were transfected with HI...
زمینه و هدف : مسلم است که محیط رحم و دوره جنینی به طور عمیقی بر سلامتی و رشد پس از تولد اثر می گذارد و فعالیت hif-1α در دوره زندگی جنینی و پس از تولد ضروری است. هدف این مطالعه بررسی تاثیر یک دوره تمرینات استقامتی شنا در دوران بارداری موش های نژاد ویستار بر سطوح فاکتور القایی هایپوکسی ( hif-1α ) ریه ی نوزادان به عنوان عامل کلیدی تنظیم کننده اکسیژن آن ها بود. روش بررسی: تعداد 16 سر موش ماده ی نژا...
This paper reviews the current understanding of the molecular basis of the peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α)-mediated pathway and discusses the role of PGC-1α in skeletal muscle atrophy caused by immobilization. PGC-1α is the master transcription regulator that stimulates mitochondrial biogenesis, by upregulating nuclear respiratory factors (NRF-1, 2) and mito...
Accumulating evidence shows that peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α) is involved in the progression of hormone-related cancers, and there may exist an association between estrogen and PGC-1α. Notably, emerging evidence has led to considerable interest in the role of PGC-1α in endometrial cancer development. However, whether the synergism exists between PGC-1...
The aim was to determine whether gum Arabic (GA) supplementation prevents cognitive decline in type 2 diabetes, through stimulation of mitochondrial function the hippocampus. Type diabetic rats and controls were assigned following groups for 16 weeks: Control + Water; GA 10% w/v; Diabetes w/v. Latency water maze shorter compared Water (P < 0.05). group had a higher expression density per cell p...
Osterix (Osx) is an osteoblast-specific transcription factor required for osteoblast differentiation. Inhibition of Wnt pathway by Osx highlights the potential for feedback control mechanisms involved in bone formation. Hypoxia-inducible factor-1α (HIF-1α) is a master regulator of hypoxia. HIF-1α has been reported to couple angiogenesis to osteogenesis. Our recent study has demonstrated that Os...
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