The α1,2-fucosyltransferase activity in pancreatic tumors is much lower compared to normal pancreatic tissue. Here we show that hypoxia inducible factor (HIF) 1α is constitutively expressed in the pancreatic cancer cell lines Pa-Tu-8988S and Pa-Tu-8988T and suppresses the expression of the α1,2-fucosyltransferase genes FUT1 and FUT2. Down regulation of HIF-1α expression resulted in elevated FUT1 and FUT2 transcript levels and an increased expression of α1,2-fucosylated glycan structures on the surface of these cells. In conclusion, our data are the first to identify HIF-1α as a suppressor of FUT1/2 expression, thereby regulating α1,2-fucosylation of cell-surface glycans.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.febslet.2015.07.035 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Berberine inhibits the glycolysis and proliferation of hepatocellular carcinoma cells by down-regulating HIF-1α.
Pak J Pharm Sci
January 2025
Department of Pharmacy, the First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province, China.
Berberine (BBR), an isoquinoline alkaloid abundant in Coptis chinensis, exhibits anti-tumor and hypoglycemic properties. The regulation of tumor cell homeostasis and metabolism is greatly influenced by Hypoxia-inducible factor-1α (HIF-1α). This research aims to elucidate whether BBR inhibits the progression of hepatocellular carcinoma (HCC) by modulating HIF-1α expression.
View Article and Find Full Text PDFIntravenous lidocaine decreased oxygen-desaturation episodes induced by propofol-based sedation for gastrointestinal endoscopy procedures: a prospective, randomized, controlled trial.
BMC Anesthesiol
January 2025
Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, No.95 Yongan Road, Beijing, Xicheng District, 100050, China.
Background: As a popularly used analgesic adjuvant, intravenous (IV) lidocaine could reduce the consumption of propofol in painless gastrointestinal (GI) endoscopy. However, whether IV lidocaine could affect the incidence of oxygen-desaturation episodes (ODE) during painless GI endoscopy is still unknown. Therefore, we tested the hypothesis that IV lidocaine could decrease the incidence of propofol-induced ODE and involuntary movements in patients during GI endoscopy.
View Article and Find Full Text PDFEngineered hypoxia-responsive albumin nanoparticles mediating mitophagy regulation for cancer therapy.
Nat Commun
January 2025
School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, China.
Hypoxic tumors present a significant challenge in cancer therapy due to their ability to adaptation in low-oxygen environments, which supports tumor survival and resistance to treatment. Enhanced mitophagy, the selective degradation of mitochondria by autophagy, is a crucial mechanism that helps sustain cellular homeostasis in hypoxic tumors. In this study, we develop an azocalix[4]arene-modified supramolecular albumin nanoparticle, that co-delivers hydroxychloroquine and a mitochondria-targeting photosensitizer, designed to induce cascaded oxidative stress by regulating mitophagy for the treatment of hypoxic tumors.
View Article and Find Full Text PDFPossible role of autophagy in microbial volatile pollutant-induced starch degradation and expression of hypoxia responsive genes.
Environ Pollut
January 2025
Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan; Graduate Program in Translational Agricultural Sciences, National Cheng Kung University and Academia Sinica, Taiwan; Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan, Taiwan. Electronic address:
Autophagy is thought to be critically involved in the regulation of nutrient metabolism and gene expression. Nevertheless, little is known about its role in regulating starch metabolism and hypoxia responsive genes in plants exposed to microbial volatile pollutants. In the present study, we found that exposure of Arabidopsis to Enterobacter aerogene (E.
View Article and Find Full Text PDFLncRNA432-miR-21-y-DAPK2 ceRNA crosstalk regulates antibacterial response in hypoxia stress through mediating mitochondrial apoptosis in teleost fish.
Int J Biol Macromol
January 2025
Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Jiangsu Key Laboratory of Ocean-Land Environmental Change and Ecological Construction, School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang 222005, China. Electronic address:
As cold-blooded vertebrates, fish are sensitive to environmental changes. The outcome of pathogen infections in fish therefore is highly shaped by hypoxia. The epigenetic regulation of competitive endogenous RNA (ceRNA) bridging non-coding RNAs and mRNAs represents a promising mechanism modulating antibacterial response plus environmental stress.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!