Parcourir par sujet "enzyme activation"
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Activation of FADD-Dependent neuronal death pathways as a predictor of pathogenicity for LRRK2 mutations
(2016)Background Despite the plethora of sequence variants in LRRK2, only a few clearly segregate with PD. Even within this group of pathogenic mutations, the phenotypic profile can differ widely. Objective We examined multiple ... -
Activation of general control nonderepressible 2 kinase protects human glomerular endothelial cells from harmful high-glucose-induced molecular pathways
(2016)Purpose: Considering the referred beneficial effects of protein restriction on diabetic nephropathy (DN) and the role of renal endothelium in its pathogenesis, we evaluated the effect of general control nonderepressible 2 ... -
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 ... -
Decreased serum DNase1-activity in patients with autoimmune liver diseases
(2017)Deoxyribonuclease1 (DNase1) is involved in chromatin degradation of apoptotic cells. Its deficiency results in accumulation of self-DNA, which in turn may induce inflammation and autoimmunity. We assessed for the first ... -
Dietary prenylated flavonoid xanthohumol alleviates oxidative damage and accelerates diabetic wound healing via Nrf2 activation
(2022)Diabetic skin ulcer is one of the most common complications in patients suffering diabetes mellitus. Xanthohumol (XN), a hop-derived prenylated dietary flavonoid, has multiple health beneficial bioactivities. In the present ... -
Differential effects of the two amino acid sensing systems, the GCN2 kinase and the mTOR complex 1, on primary human alloreactive CD4+ T-cells
(2016)Amino acid deprivation activates general control nonderepressible 2 (GCN2) kinase and inhibits mammalian target of rapamycin (mTOR), affecting the immune response. In this study, the effects of GCN2 kinase activation or ... -
Evidence for disulfide bonds in SR Protein Kinase 1 (SRPK1) that are required for activity and nuclear localization
(2017)Serine/arginine protein kinases (SRPKs) phosphorylate Arg/Ser dipeptide-containing proteins that play crucial roles in a broad spectrum of basic cellular processes. The existence of a large internal spacer sequence that ... -
IDO decreases glycolysis and glutaminolysis by activating GCN2K, while it increases fatty acid oxidation by activating AhR, thus preserving CD4+ T-cell survival and proliferation
(2018)It is generally hypothesized in the literature that indoleamine 2,3-dioxygenase (IDO), by degrading L-tryptophan along the kynurenine pathway, suppresses CD4+ T-cell function by inducing apoptosis, inhibiting proliferation ... -
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 ... -
A low-protein, high-carbohydrate diet stimulates thermogenesis in the brown adipose tissue of rats via ATF-2
(2016)The aim of this study was to evaluate thermogenesis in the interscapular brown adipose tissue (IBAT) of rats submitted to low-protein, high-carbohydrate (LPHC) diet and the involvement of adrenergic stimulation in this ... -
Mortalin-mediated and ERK-controlled targeting of HIF-1α to mitochondria confers resistance to apoptosis under hypoxia
(2017)Hypoxia inducible factor-1 (HIF-1) is the main transcriptional activator of the cellular response to hypoxia and an important target of anticancer therapy. Phosphorylation by ERK1 and/or ERK2 (MAPK3 and MAPK1, respectively; ... -
A neuroprotective bovine colostrum attenuates apoptosis in dexamethasone‐treated mc3t3‐e1 osteoblastic cells
(2021)Glucocorticoid‐induced osteoporosis (GIO) is one of the most common secondary forms of osteoporosis. GIO is partially due to the apoptosis of osteoblasts and osteocytes. In addition, high doses of dexamethasone (DEX), a ... -
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 ... -
A promising natural product, pristimerin, results in cytotoxicity against breast cancer stem cells in vitro and xenografts in vivo through apoptosis and an incomplete autopaghy in breast cancer
(2018)Several natural products have been suggested as effective agents for the treatment of cancer. Given the important role of CSCs (Cancer Stem Cells) in cancer, which is a trendy hypothesis, it is worth investigating the ... -
Protein phosphatase PPP3CA (calcineurin A) down-regulates hypoxia-inducible factor transcriptional activity
(2019)Hypoxia-inducible factors (HIF) are master regulators of the response to hypoxia. Although several kinases are known to modify their oxygen sensitive HIF-α subunits or affect indirectly their function, little is known about ...