Browsing by Subject "enzyme activation"
Now showing items 1-13 of 13
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CB1R-dependent activation of Fyn tyrosine kinase and protein kinase C Delta, PKCδ, in lipid rafts
(2008)Cannabinoid 1 receptors (CB1Rs) are heptahelical transmembrane receptors which may exert their effects through the activation of the extracellular signal-regulated kinases (ERKs). We have previously shown that stably ... -
Complement: An inflammatory pathway fulfilling multiple roles at the interface of innate immunity and development
(2005)Complement has been long perceived as an innate immune system that plays a pivotal role in the maintenance of host defense against infectious agents and the propagation of proinflammatory responses in the context of human ... -
The immunopathogenetic role of autoantibodies in canine autoimmune hepatitis: Lessons to learn from human autoimmune hepatitis
(2012)Autoimmune hepatitis (AIH) is not a disease entity restricted to man, but it can be found in other animals including canines. An increasing number of studies have focused on the immunopathogenesis of human autoimmune ... -
Indoleamine 2,3-dioxygenase depletes tryptophan, activates general control non-derepressible 2 kinase and down-regulates key enzymes involved in fatty acid synthesis in primary human CD4+ T cells
(2015)Indoleamine 2,3-dioxygenase (IDO) is expressed in antigen-presenting cells and exerts immunosuppressive effects on CD4+ T cells. One mechanism is through the inhibition of aerobic glycolysis. Another prerequisite for T-cell ... -
Inhibition of the Na-H + exchanger isoform-1 and the extracellular signal-regulated kinase induces apoptosis: A time course of events
(2006)Aims: The present study attempts to shed light on the role and the relative position of the Na +/H + exchanger isoform 1 (NHE1) and the extracellular signal-regulated kinase (ERK) in HEp-2 cell signaling pathways concerning ... -
Insulin causes a transient induction of proliferation via activation of the PI3-kinase pathway in airway smooth muscle cells
(2007)Insulin regulates glucose metabolism and activates cell growth. As the respiratory system is an alternative route for insulin administration in patients with diabetes mellitus, we studied the effect of insulin on rabbit ... -
The labdane diterpene sclareol (labd-14-ene-8, 13-diol) induces apoptosis in human tumor cell lines and suppression of tumor growth in vivo via a p53-independent mechanism of action
(2011)The labdane diterpene sclareol has demonstrated significant cytotoxicity against human tumor cell lines and human colon cancer xenografts. Therefore, there is need to elucidate the mode of action of this compound as very ... -
P38 MAPK signaling in pemphigus: Implications for skin autoimmunity
(2013)p38 mitogen activated protein kinase (p38 MAPK) signaling plays a major role in the modulation of immune-mediated inflammatory responses and therefore has been linked with several autoimmune diseases. The extent of the ... -
RNase P: A promising molecular target for the development of new drugs
(2004)RNase P is an ubiquitous and essential endonuclease in tRNA biogenesis, which generates the mature 5′-termini of tRNAs. RNase P activities have been identified in all three kingdoms of life (Bacteria, Archaea, Eukarya). ... -
Role of Arc1p in the modulation of yeast glutamyl-tRNA synthetase activity
(2005)Yeast methionyl-tRNA synthetase (MetRS) and glutamyl-tRNA synthetase (GluRS) possess N-terminal extensions that bind the cofactor Arc1p in trans. The strength of GluRS-Arc1p interaction is high enough to allow copurification ... -
Transactivation of epidermal growth factor receptor EGFR by CB1 cannabinoid receptor agonists
(2007)Cannabinoids have long been used as therapeutic agents. The recent identification of the endogenous cannabinoid system in the brain, namely the abundance of the CB1 receptor (CB1R) in the CNS and the discovery of the ... -
Urate crystals induce NLRP3 inflammasome-dependent IL-1β secretion and proliferation in isolated primary human T-cells
(2015)Background: Urate through NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome-dependent caspase-1 activation stimulates macrophages to secrete inteleukin-1β (IL-1β). Urate also enhances adaptive immunity ... -
Uric acid induces caspase-1 activation, IL-1β secretion and P2X7 receptor dependent proliferation in primary human lymphocytes
(2013)Background: Urate through Nacht Domain, Leucine-Rich Repeat, and pyrin domain-containing protein 3 (NALP3) dependent caspase-1 activation stimulates macrophages to secrete inteleukin-1β (IL-1β). Purinergic receptor P2X7 ...