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- Publications
- Influence
Identification of MAPK Phosphorylation Sites and Their Role in the Localization and Activity of Hypoxia-inducible Factor-1α*
- I. Mylonis, G. Chachami, +6 authors G. Simos
- Medicine, Biology
- Journal of Biological Chemistry
- 3 November 2006
Hypoxia-inducible factor 1 (HIF-1) controls the expression of most genes induced by hypoxic conditions. Regulation of expression and activity of its inducible subunit, HIF-1α, involves several… Expand
Ubiquitin‐specific protease‐like 1 (USPL1) is a SUMO isopeptidase with essential, non‐catalytic functions
- S. Schulz, G. Chachami, +9 authors F. Melchior
- Biology, Medicine
- EMBO reports
- 1 October 2012
Isopeptidases are essential regulators of protein ubiquitination and sumoylation. However, only two families of SUMO isopeptidases are at present known. Here, we report an activity‐based search with… Expand
Atypical CRM1-dependent Nuclear Export Signal Mediates Regulation of Hypoxia-inducible Factor-1α by MAPK*
- I. Mylonis, G. Chachami, E. Paraskeva, G. Simos
- Biology, Medicine
- Journal of Biological Chemistry
- 10 October 2008
Hypoxia-inducible factor 1 (HIF-1) is the key transcriptional activator of hypoxia-inducible genes and an important anti-cancer target. Its regulated subunit, HIF-1α, is controlled by oxygen levels… Expand
Transport of hypoxia-inducible factor HIF-1alpha into the nucleus involves importins 4 and 7.
- G. Chachami, E. Paraskeva, J. Mingot, G. Braliou, D. Görlich, G. Simos
- Biology, Medicine
- Biochemical and biophysical research…
- 11 December 2009
Hypoxia-inducible transcription factor 1 (HIF-1) mediates the cellular response to hypoxia. HIF-1 activity is controlled via the synthesis, degradation or intracellular localization of its alpha… Expand
Epstein-Barr Virus Immortalization of Human B-Cells Leads to Stabilization of Hypoxia-Induced Factor 1 Alpha, Congruent with the Warburg Effect
- S. Darekar, Konstantinos Georgiou, +5 authors E. Kashuba
- Biology, Medicine
- PloS one
- 27 July 2012
Background Epstein-Barr virus (EBV) encodes six nuclear transformation-associated proteins that induce extensive changes in cellular gene expression and signaling and induce B-cell transformation.… Expand
2-Oxoglutarate-dependent oxygenases control hepcidin gene expression.
- G. Braliou, M. V. Verga Falzacappa, G. Chachami, Guillem Casanovas, M. Muckenthaler, G. Simos
- Biology, Medicine
- Journal of hepatology
- 1 May 2008
BACKGROUND/AIMS
Hepcidin is a liver-produced hormone that regulates systemic iron homeostasis. Hepcidin expression is stimulated upon iron overload or inflammation while iron deficiency, anemia and… Expand
Cobalt induces hypoxia-inducible factor-1alpha expression in airway smooth muscle cells by a reactive oxygen species- and PI3K-dependent mechanism.
- G. Chachami, G. Simos, A. Hatziefthimiou, S. Bonanou, Paschalis-Adam Molyvdas, E. Paraskeva
- Chemistry, Medicine
- American journal of respiratory cell and…
- 15 July 2004
Cobalt can mimic hypoxia and has been implicated as a cause of lung defects. However, the effect of cobalt on airway smooth muscle (ASM) cells has not been analyzed in detail. In this article, we use… Expand
A role for the Cajal-body-associated SUMO isopeptidase USPL1 in snRNA transcription mediated by RNA polymerase II
- Saskia Hutten, G. Chachami, U. Winter, F. Melchior, A. Lamond
- Biology, Medicine
- Journal of Cell Science
- 1 March 2014
ABSTRACT Cajal bodies are nuclear structures that are involved in biogenesis of snRNPs and snoRNPs, maintenance of telomeres and processing of histone mRNA. Recently, the SUMO isopeptidase USPL1 was… Expand
The flavonoid quercetin induces hypoxia-inducible factor-1alpha (HIF-1alpha) and inhibits cell proliferation by depleting intracellular iron.
- Anastasia Triantafyllou, P. Liakos, +6 authors S. Bonanou
- Medicine
- Free radical research
- 2007
Quercetin, a flavonoid with anti-oxidant, metal chelating, kinase modulating and anti-proliferative properties, can induce hypoxia-inducible factor-1alpha (HIF-1alpha) in normoxia, but its mechanism… Expand
Low Serum Hepcidin in Patients with Autoimmune Liver Diseases
- A. Lyberopoulou, G. Chachami, +10 authors G. Simos
- Medicine
- PloS one
- 13 August 2015
Hepcidin, a liver hormone, is important for both innate immunity and iron metabolism regulation. As dysfunction of the hepcidin pathway may contribute to liver pathology, we analysed liver hepcidin… Expand