p(HGNC:TNF)
Notably, nicotine pretreatment of rat adipocytes (279) reduces the release of TNF-alpha as well as free fatty acids and the adipokine adiponectin (whose function is not known, although its levels change in metabolic syndrome). PubMed:19126755
Nicotine may regulate the neuroprotective secretion of TNFalpha by microglia through enhancement of lowlevel TNF secretion and suppression of lipopolysaccharide- induced TNFalpha secretion (Suzuki et al., 2006; Park et al., 2007) via alpha7-dependent activation of JNK and MAPK pathways. PubMed:19293145
The plaque-associated microglia secrete a variety of cytotoxic species including the inflammatory cytokines, INF-g, TNF-a, IL-1b and IL-6 and chemokines, most prominently CCL2 [10-12]. PubMed:21718217
NFT containing neurons upregulated genes involved in cell survival and viability, inflammation, cell cycle progression and molecular transport and downregulated apoptosis, necrosis and cell death pathways (Figure 1a). NFkB, a pro-survival master transcriptional regulator of inflammation, was the highest predicted upstream regulator of the NFT-gene expression profile. In agreement with inflammatory activation, other predicted upstream regulators included IFNG, TNF, TLR4, IL1B and CXCL1 (Figure 1b) PubMed:30126037
NLRP3 inflammasome formation and subsequent activation of caspase-1 cleavage capacity was instrumental for Abeta-induced nitric oxide production and TNF-a release PubMed:28019679
NLRP3 inflammasome formation and subsequent activation of caspase-1 cleavage capacity was instrumental for Abeta-induced nitric oxide production and TNF-a release PubMed:28019679
NLRP3 inflammasome formation and subsequent activation of caspase-1 cleavage capacity was instrumental for Abeta-induced nitric oxide production and TNF-a release PubMed:28019679
For instance, the small GTPase Rho and its downstream effector Rho-associated coiled-coil containing protein kinase (ROCK) have been shown to contribute to TNFα induction of NFkB activation (45). PubMed:25331948
Furthermore, Amyloid-β actuates NF-κB – dependent pro-inflammatory pathways in microglia culminating in TNFα expression and subsequently TNFα effectuated neurotoxicity PubMed:28745240
Amyloid-β also induces microglial activation that results in NF-κB – induced expression of pro-inflammatory cytokines such as TNFα, IL1β, IL6, and IL8 from the microglia resulting in neuronal death PubMed:28745240
The expression of pro-inflammatory cytokines such as TNF-, IL-1 and IL-6 were significantly reduced by treatment of 1,8-cineole in A 25-35-induced cells [250]. PubMed:29179999
Another known target of NF-κB, TNFα [266, 267] is also up-regulated in the cortex [268], cerebrospinal fluid, and the serum of Alzheimer’s disease patients PubMed:28745240
Furthermore, Amyloid-β actuates NF-κB – dependent pro-inflammatory pathways in microglia culminating in TNFα expression and subsequently TNFα effectuated neurotoxicity PubMed:28745240
Amyloid-β also induces microglial activation that results in NF-κB – induced expression of pro-inflammatory cytokines such as TNFα, IL1β, IL6, and IL8 from the microglia resulting in neuronal death PubMed:28745240
Another known target of NF-κB, TNFα [266, 267] is also up-regulated in the cortex [268], cerebrospinal fluid, and the serum of Alzheimer’s disease patients PubMed:28745240
Glial activation, pro-inflammatory gene expression and elevated secretion of IL-1, IL-6 and TNF- are consequences of high A levels [30,31]. PubMed:29179999
Geniposide considerably suppressed RAGE-related signaling such as ERK and IB/NF-B, the expression of TNF-, IL-1 and cerebral A accumulation in vivo[245] PubMed:29179999
Curcumin showed several anti-inflammatory characteristics. It deploys various cytokine-inhibitory, anti-inflammatory activities and decreases the expression levels of COX-2, LOX, and iNOS. Moreover, the expression of the pro-inflammatory cytokines, for instance, TNF-, IL-1, -2,-6, -8, and -12 and the neurotoxic factors were suppressed by curcumin in lipopolysaccharide (LPS)-stimulated monocytes and alveolar macrophages [103]. PubMed:29179999
Resveratrol crossed the blood-brain barrier (BBB) [111,112] and down-regulated several inflammatory biomarkers such as TNF-, COX2 and interleukins [113,114]. PubMed:29179999
Xanthoceraside decreased the expression of A 25-35/IFN--stimulated NO, IL-1,and TNF- in microglia, which implicated the down-regulation of the activities of MAPK and NF-B pathways [248] PubMed:29179999
Glaucocalyxin B, found in Rabdosia japonica, considerably atten-uated the expression of NO, TNF-, IL-1, COX-2 and iNOS in LPS-induced microglia cells [169–172]. Moreover, the activation of NF-B, p38 MAPK and ROS generation was interrupted by glauco- calyxin B in LPS-induced microglia cells [172]. PubMed:29179999
LPS-activated expression of pro-inflammatory and neurotoxic factors like NO, TNF-, PGE2, NO synthase and COX2 production and LOX activity were inhibited by dihydroasparagusic acid in microglia cells [243]. PubMed:29179999
The expression of the protein and mRNA of TLR3, TLR4, NF-B and TNF receptor associated factor 6 (TRAF-6) were substantially decreased by ginsenoside Rg1, and it also decreased the expression of TNF- and IFN- [227] PubMed:29179999
It attenuated the development of AD by inhibiting glycogen synthase kinase 3 (GSK-3) and NF-B activation, and sup-pressing the NLRP3 inflammasome and cytokines such as TNF-and IL-1 [1]. PubMed:29179999
Retinoic acid showed anti-inflammatory qualities via suppressing the expression of the inflammatory mediators IL-6, IL-12 and TNF- [216–219] and mod-ulating NF-B signaling [220,221]. PubMed:29179999
It ameliorated spatial learning and memory disorder, which was caused by A 1-42 and was associated with the inter-ference of NF-B activity and the inhibition of IL-1 and TNF-expression [183]. PubMed:29179999
LPS treatment induced the nuclear translocation of NF-κB and increased the expression and secretion of TNF-α and IL-1β [63]. PubMed:27288790
LPS treatment induced the nuclear translocation of NF-κB and increased the expression and secretion of TNF-α and IL-1β [63]. PubMed:27288790
Then the stimulation of RAGE is able to activate the mitogen-activated protein kinase signaling cascades which converge in IκB kinase complex to phosphorylate IκB, thereby release and activate NF-κB, thus trigger NF-κB dependent gene transcription including IL-1β and TNF-α, which in turn induce the translocation of NF-κB to the nucleus [50]. PubMed:27288790
TNF-α [27], IL-1β [28], IL-18 [29], CXCL10 [30] and TGF-β1 [31] are known to be elevated in the AD brain. PubMed:27288790
Increased presence of NF-κB mediated IL-1β, IL-6, and TNF-α cytokines have been reported in the affected tissues, serum and CSF of AD patients PubMed:25652642
Stimulation with the Aβ25-35 fragments induces secretion of cytokines such as TNF-α and of neurotrophic factors such as nerve growth factor (NGF) and brain derived nerve factor (BDNF) in NF-κB-dependent manner PubMed:25652642
Increased presence of NF-κB mediated IL-1β, IL-6, and TNF-α cytokines have been reported in the affected tissues, serum and CSF of AD patients PubMed:25652642
Similarly, NAC prevented increased expression of MHCII, CD14, TNFα, IL-6, IL-1β, and CD86 and mildly compensated for the decrease of CD206 and IL-10 following heme treatment (Figure 4D; supplemental Figure 5). PubMed:26675351
mROS scavenger (Mito-TEMPO) and NADPH oxidases inhibitors (apocynin and DPI) block TNF production induced by heme. PubMed:24904418
mROS scavenger (Mito-TEMPO) and NADPH oxidases inhibitors (apocynin and DPI) block TNF production induced by heme. PubMed:24904418
mROS scavenger (Mito-TEMPO) and NADPH oxidases inhibitors (apocynin and DPI) block TNF production induced by heme. PubMed:24904418
. Heme activates macrophages inducing the production of TNF, KC (Figueiredo et al., 2007), IL-1β (unpublished), and LTB4 (Monteiro et al., 2011). PubMed:24904418
On the other hand, TNF secretion induced by heme is essential for the activation of the programed necrotic cell death pathway, which is denominated necroptosis (Fortes et al., 2012). PubMed:24904418
Moreover, heme amplifies MyD88- (TNF and IL-6) and TRIF-dependent (IP-10) cytokines. PubMed:24904418
Haem also induces tumour necrosis factor (TNF) secretion in monocyte/macrophages through TLR4 and the adaptor molecule, MYD88 (Figueiredo et al, 2007). PubMed:25307023
In addition, we observed increased ROS production ( Figure 2I; supplemental Figure 2), as well as an enhanced expression of IL-6 and TNFα in cells treated with heme-albumin compared with heme-Hx (Figure 2J-K). PubMed:26675351
Taken sequentially, it appears that the release of heme under hemolytic conditions initiates the extrinsic pathway of coagulation through the upregulation of TF on endothelial cells and leukocytes, but subsequently blocks the propagation of coagulation by inhibiting FVIII and FV, and by inhibiting the conversion of fibrinogen into fibrin and fibrin clots. PubMed:26875449
Importantly, protoporphyrin did not induce TNFα, suggesting a critical proinflammatory role for iron within the heme moiety (supplemental Figure 8). PubMed:26675351
However, ROS is necessary to induce TNF secretion and MAPK activation. PubMed:24904418
In hepatic macrophages, TAK-242 also diminished heme-driven induction of IL-6 and TNFα and NAC partially recovered CD206 downregulation ( Figure 5B-C). PubMed:26675351
For example, monocytes from SCD patients show an enhanced state of activation, with increased expression of interleukin (IL)-15 and production of TNFα and IL-1β. PubMed:26675351
Cotreatment of M0 BMDMs with heme and TAK-242 attenuated the increase of the M1 markers MHCII, CD14, TNFα, IL-6, IL-1β, and CD86 and the decrease of the M2 marker CD206, IL-10, and Ym1 in comparison with heme treatment alone ( Figure 4A; supplemental Figures 5 and 12). PubMed:26675351
In vivo, injection of heme and LPS induces a significant increase in the concentrations of TNF and IL-6 when compared to the challenge with LPS alone (Fernandez et al., 2010). PubMed:24904418
In addition, Hx and DFO prevented the heme- and ironmediated induction of the M1 markers MHCII, CD86, CD14, and TNFα and the decrease of some M2 markers, such as CD206, IL-10, and Arginase-1 (the last for FeNTA only) in M0 BMDMs (Figure 6A; supplemental Figure 15A). PubMed:26675351
Haem also induces tumour necrosis factor (TNF) secretion in monocyte/macrophages through TLR4 and the adaptor molecule, MYD88 (Figueiredo et al, 2007). PubMed:25307023
TLR4 activation leads to MAPKs and NFκB activation, which are necessary to TNF secretion. PubMed:24904418
Cells deficient on FtH are more susceptible to oxidative damage, while increased amounts of FtH protects cells from death induced by challenges such as Fe, tumor necrosis factor (TNF), heme, heme plus TNF, or oxidized low-density lipoprotein (LDL; Juckett et al., 1995; Pham et al., 2004; Gozzelino et al., 2012). PubMed:24904418
TLR4 activation leads to MAPKs and NFκB activation, which are necessary to TNF secretion. PubMed:24904418
Haem also induces tumour necrosis factor (TNF) secretion in monocyte/macrophages through TLR4 and the adaptor molecule, MYD88 (Figueiredo et al, 2007). PubMed:25307023
Only under protein-free conditions did we observe a limited heme-induced TNF-alpha response in cultured macrophages, which was triggered via signaling of the classical TLR4–MyD88–TRIF pathway of NF-kB activation.28 PubMed:29610666
Moreover, IL-1β and TNF modifies the hypothalamus threshold of the body temperature causing fever. PubMed:24904418
Second, immune hemolysis is accompanied by production of TNF- which induces tissue factor expression in endothelial cells and also decreases the endothelial expression of thrombomodulin, a potent modulator of thrombin activity [62]. PubMed:28458720
Furthermore, TNF-alpha strongly promotes ligand-mediated upregulation of alpha4beta2 nAChRs through a mechanism that requires p38 mitogen-activated protein kinase (MAPK) signaling (163). PubMed:19126755
There is evidence that nicotine’s neuroprotective effects can be mediated through tumor necrosis factor-alpha (TNF-alpha). Application of either nicotine or TNF-alpha protects cultured mouse embryonic cortical neurons from N-methyl-D-aspartate (NMDA) toxicity, but coapplication of both does not. PubMed:19293145
There is evidence that nicotine’s neuroprotective effects can be mediated through tumor necrosis factor-alpha (TNF-alpha). Application of either nicotine or TNF-alpha protects cultured mouse embryonic cortical neurons from N-methyl-D-aspartate (NMDA) toxicity, but coapplication of both does not. PubMed:19293145
Following this 15 mins of stimulation with TNFa, an increased p65 NFkB phosphorylation (Mann–Whitney U=0, Z=-2.309, P=0.021) without a noticeable increase in STAT3 phosphorylation (Mann–Whitney U=7, Z=-0.289, P=0.773) was observed compared to the control conditions (Fig. 1) PubMed:23178521
An increased in both STAT3 (Mann–Whitney U=0, Z=-2.309, P=0.021) and p65 NFkB phosphorylation (Mann–Whitney U=0, Z=-2.309, P=0.021) was observed following 24 h of treatment with TNFa PubMed:23178521
TNFa significantly stimulated STAT3 (Mann–Whitney U=0, Z=-2.309, P=0.021) and p65 NFkB phosphorylation (Mann–Whitney U=0, Z=-2.309, P=0.021) PubMed:23178521
Following this 15 mins of stimulation with TNFa, an increased p65 NFkB phosphorylation (Mann–Whitney U=0, Z=-2.309, P=0.021) without a noticeable increase in STAT3 phosphorylation (Mann–Whitney U=7, Z=-0.289, P=0.773) was observed compared to the control conditions (Fig. 1) PubMed:23178521
An increased in both STAT3 (Mann–Whitney U=0, Z=-2.309, P=0.021) and p65 NFkB phosphorylation (Mann–Whitney U=0, Z=-2.309, P=0.021) was observed following 24 h of treatment with TNFa PubMed:23178521
TNFa significantly stimulated STAT3 (Mann–Whitney U=0, Z=-2.309, P=0.021) and p65 NFkB phosphorylation (Mann–Whitney U=0, Z=-2.309, P=0.021) PubMed:23178521
We observed that anatabine dose dependently inhibited NFκB activation by TNFα in HEK293 NFκB luciferase reporter cells (Fig. 5) whereas nicotine was ineffective PubMed:21958873
As expected, TNFα greatly stimulated BACE-1 transcription whereas anatabine fully prevented the increase in BACE-1 mRNA levels induced by TNFα (Fig. 7A). PubMed:21958873
Tumor necrosis factor-α (TNFα) has been shown to induce BACE-1 expression and to contribute to brain accumulation of Aβ peptides PubMed:25331948
We found that both (-)-nilvadipine and racemic nilvadipine reduce BACE-1 mRNA expression (Fig. 1C) induced by TNFα PubMed:25331948
Tumor necrosis factor-α (TNFα) has been shown to induce BACE-1 expression and to contribute to brain accumulation of Aβ peptides PubMed:25331948
For instance, the small GTPase Rho and its downstream effector Rho-associated coiled-coil containing protein kinase (ROCK) have been shown to contribute to TNFα induction of NFkB activation (45). PubMed:25331948
TNF-a is a strong activator of NF-kB signalling pathways. PubMed:21329555
Compared to controls, TNF-a treatment resulted in significant increase in luciferase activity in the cells transfected with the human BACE1 promoter pB1P- N1 plasmid (p<0.005) and addition of aspirin in- hibited the BACE1 transcriptional activation induced by TNF-a (p<0.005 relative to TNF-a and p>0.05 relative to controls) (Fig. 6a). PubMed:21329555
Consistent with pB1P-N1 plasmid results, TNF-a significantly induced BACE1-NF-kB promoter activation (p<0.005) and the NSAIDs aspirin, ibuprofen and indomethacin significantly blocked the TNF-a-induced BACE1- NF-kB promoter activation (p<0.005) (Fig. 6b). PubMed:21329555
Our data clearly demonstrate that NSAIDs inhibit TNF-a-induced BACE1 transcription via its NF-kB cis-acting elements. PubMed:21329555
The trophic factors that evoke proliferation of NPC by inducing activation of NF-κB include epidermal growth factor (EGF) [155-161], basic fibroblast growth factor (bFGF) [155-161], vascular endothelial growth factor (VEGF) [162], tumor necrosis factor α (TNFα) [163], and erythropoietin (EPO) PubMed:28745240
Another known target of NF-κB, TNFα [266, 267] is also up-regulated in the cortex [268], cerebrospinal fluid, and the serum of Alzheimer’s disease patients PubMed:28745240
Furthermore, Amyloid-β actuates NF-κB – dependent pro-inflammatory pathways in microglia culminating in TNFα expression and subsequently TNFα effectuated neurotoxicity PubMed:28745240
Amyloid-β also induces microglial activation that results in NF-κB – induced expression of pro-inflammatory cytokines such as TNFα, IL1β, IL6, and IL8 from the microglia resulting in neuronal death PubMed:28745240
It inhibited the activation of NF-B in TNF- induced HepG2 cells [193]. PubMed:29179999
TNF-α [27], IL-1β [28], IL-18 [29], CXCL10 [30] and TGF-β1 [31] are known to be elevated in the AD brain. PubMed:27288790
Nuclear local- ization of NF-κB in differentiated neuron progenitor cells (NPCs) is in- creasing following exposure to IL-1β and TNF-α, strong inducers of the NF-κB pathway with increase in the phosphorylation of IKK and p65 while decrease in the level of IκB [32]. PubMed:27288790
Then the stimulation of RAGE is able to activate the mitogen-activated protein kinase signaling cascades which converge in IκB kinase complex to phosphorylate IκB, thereby release and activate NF-κB, thus trigger NF-κB dependent gene transcription including IL-1β and TNF-α, which in turn induce the translocation of NF-κB to the nucleus [50]. PubMed:27288790
NSAIDs inhibit BACE1 tran- scriptional activation induced by strong NF-κB activator TNF-α. PubMed:27288790
Nuclear local- ization of NF-κB in differentiated neuron progenitor cells (NPCs) is in- creasing following exposure to IL-1β and TNF-α, strong inducers of the NF-κB pathway with increase in the phosphorylation of IKK and p65 while decrease in the level of IκB [32]. PubMed:27288790
Nuclear local- ization of NF-κB in differentiated neuron progenitor cells (NPCs) is in- creasing following exposure to IL-1β and TNF-α, strong inducers of the NF-κB pathway with increase in the phosphorylation of IKK and p65 while decrease in the level of IκB [32]. PubMed:27288790
Nuclear local- ization of NF-κB in differentiated neuron progenitor cells (NPCs) is in- creasing following exposure to IL-1β and TNF-α, strong inducers of the NF-κB pathway with increase in the phosphorylation of IKK and p65 while decrease in the level of IκB [32]. PubMed:27288790
Inhibition of NF-κB leads to decreased induction of cytokines and chemokines by IL-1β and TNF-α. PubMed:27288790
Inhibition of NF-κB leads to decreased induction of cytokines and chemokines by IL-1β and TNF-α. PubMed:27288790
NSAIDs inhibit BACE1 tran- scriptional activation induced by strong NF-κB activator TNF-α. PubMed:27288790
Omega-6 phospholipids, e.g. dilinoleoylphosphatidylcholine (DLPC), have been shown to block TNF-α and H 2 O 2 activation of MAPK as well as blocks IκBα phosphorylation in the SH-SY5Y cells and prevents the phosphorylation and activation of NF-κB. PubMed:27288790
What's more, DLPC complete- ly abolishes TNF-α and H 2 O 2 induced neuronal tau phosphorylation, re- duces cellular APP levels and Aβ expression and secretion in SH-SY5Y cells [91,92] (Table 1). PubMed:27288790
Stimulation of neuronal cells by TNF-α has been shown to upregulate transactivation of anti-apoptotic gene products and neurotrophins such as Bcl-2 and NGF respectively PubMed:25652642
Stimulation of neuronal cells by TNF-α has been shown to upregulate transactivation of anti-apoptotic gene products and neurotrophins such as Bcl-2 and NGF respectively PubMed:25652642
Increased presence of NF-κB mediated IL-1β, IL-6, and TNF-α cytokines have been reported in the affected tissues, serum and CSF of AD patients PubMed:25652642
WhileMAPK8 increases ROS generation, TNF induces RIP1–RIP3 necrosome which triggers necroptosis. PubMed:24904418
WhileMAPK8 increases ROS generation, TNF induces RIP1–RIP3 necrosome which triggers necroptosis. PubMed:24904418
Moreover, IL-1β and TNF modifies the hypothalamus threshold of the body temperature causing fever. PubMed:24904418
Although KC and IL-1β functions were not investigated during heme-induced inflammatory effects, TNF and LTB4 were described as essential inflammatory mediators during inflammatory events induced by heme. PubMed:24904418
Pro-inflammatory cytokines and chemokines [e.g., inter leukin 1B (IL1B), CXCL8 (also termed IL8), TNF and chemokine (C-C motif) ligand 2 (CCL2, also termed MCP1)], are upregulated in haemolytic disorders such as SCD (Qari et al, 2012). This pro-inflammatory cytokine milieu is crucial in mediating the pro-coagulant effects of vascular endothelial cells and promotes localized inflammation and thrombosis (Qari et al, 2012). PubMed:25307023
On the other hand, TNF secretion induced by heme is essential for the activation of the programed necrotic cell death pathway, which is denominated necroptosis (Fortes et al., 2012). PubMed:24904418
Pro-inflammatory cytokines and chemokines [e.g., inter leukin 1B (IL1B), CXCL8 (also termed IL8), TNF and chemokine (C-C motif) ligand 2 (CCL2, also termed MCP1)], are upregulated in haemolytic disorders such as SCD (Qari et al, 2012). This pro-inflammatory cytokine milieu is crucial in mediating the pro-coagulant effects of vascular endothelial cells and promotes localized inflammation and thrombosis (Qari et al, 2012). PubMed:25307023
For example, monocytes from SCD patients show an enhanced state of activation, with increased expression of interleukin (IL)-15 and production of TNFα and IL-1β. PubMed:26675351
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If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.