p(HGNC:IL6)
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
It is noteworthy that IL-1 beta and IL-18 can activate various cell types, par- ticularly astrocytes and microglia to induce additional cytokine release involving IL-1 beta , IL-6, and IL-18, and also nitric oxide (NO) synthase that can stimulate production of free radical NO, leading to the forma- tion of peroxynitrite that denatures DNA and impairs cellular energy pathways [48, 49]. PubMed:27314526
It is noteworthy that IL-1 beta and IL-18 can activate various cell types, par- ticularly astrocytes and microglia to induce additional cytokine release involving IL-1 beta , IL-6, and IL-18, and also nitric oxide (NO) synthase that can stimulate production of free radical NO, leading to the forma- tion of peroxynitrite that denatures DNA and impairs cellular energy pathways [48, 49]. PubMed:27314526
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
NF-κB positively regulates the transcription of interleukin 6 (IL6) family of cytokines such as IL6, leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) [184], which in-turn induce the differentiation of NSC into astrocytes by activating transcription factors STAT3, AP-1, and NF-κB itself PubMed:28745240
IL6 is another NF-κB – induced [256-260] pro-inflammatory cytokine up-regulated and integrally involved in the etio-pathogenesis of Alzheimer’s disease PubMed:28745240
Furthermore, NF-κB - induced IL6 has been demonstrated to evoke hyperphosphorylation of tau at Ser202 and Thr205 via the activation of the cdk5/p35 complex 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
IL6 is another NF-κB – induced [256-260] pro-inflammatory cytokine up-regulated and integrally involved in the etio-pathogenesis of Alzheimer’s disease 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
Furthermore, it disrupted the activity of NF-B, and thus, caused the suppression of NO synthase and inflammatory regulators such as IL-6 and IL-1, and the reduction of microglial activation [37] PubMed:29179999
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
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
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
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
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
Moreover, heme amplifies MyD88- (TNF and IL-6) and TRIF-dependent (IP-10) cytokines. PubMed:24904418
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
Likewise, heme and FeNTA treatment causes the induction of the M1 markers MHCII, CD86, CD14, TNFα, IL-6, and IL1β and a decrease in the M2 markers CD206, IL-10, and Arginase-1 (the last with FeNTA only) in M0 BMDMs (Figure 3A; supplemental Figures 5, 6A, and 7). PubMed:26675351
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
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
Treatment with A1M led to a small, non-significant, transient increase in plasma interleukin 6 24 hours after the first injection. PubMed:24489717
NF-κB positively regulates the transcription of interleukin 6 (IL6) family of cytokines such as IL6, leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) [184], which in-turn induce the differentiation of NSC into astrocytes by activating transcription factors STAT3, AP-1, and NF-κB itself PubMed:28745240
NF-κB positively regulates the transcription of interleukin 6 (IL6) family of cytokines such as IL6, leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) [184], which in-turn induce the differentiation of NSC into astrocytes by activating transcription factors STAT3, AP-1, and NF-κB itself PubMed:28745240
NF-κB positively regulates the transcription of interleukin 6 (IL6) family of cytokines such as IL6, leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) [184], which in-turn induce the differentiation of NSC into astrocytes by activating transcription factors STAT3, AP-1, and NF-κB itself PubMed:28745240
NF-κB positively regulates the transcription of interleukin 6 (IL6) family of cytokines such as IL6, leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) [184], which in-turn induce the differentiation of NSC into astrocytes by activating transcription factors STAT3, AP-1, and NF-κB itself PubMed:28745240
IL6 is another NF-κB – induced [256-260] pro-inflammatory cytokine up-regulated and integrally involved in the etio-pathogenesis of Alzheimer’s disease PubMed:28745240
Furthermore, NF-κB - induced IL6 has been demonstrated to evoke hyperphosphorylation of tau at Ser202 and Thr205 via the activation of the cdk5/p35 complex 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
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
BEL Commons is developed and maintained in an academic capacity by Charles Tapley Hoyt and Daniel Domingo-Fernández at the Fraunhofer SCAI Department of Bioinformatics with support from the IMI project, AETIONOMY. It is built on top of PyBEL, an open source project. Please feel free to contact us here to give us feedback or report any issues. Also, see our Publishing Notes and Data Protection information.
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.