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Nathan Goodyear

Toll-like receptors in innate immunity - 0 views

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    Great review of Toll-like receptors.
Nathan Goodyear

Toll-like Receptor Status in Obesity and Metabolic Syndrome: A Translational Perspectiv... - 0 views

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    Only the abstract is available publicly.   Toll-like receptors, particularly TLR-4 has been shown to be associated with insulin resistance.  These TLRs have specific pathogen recognition sites.  TLRs are stimulated by fatty acids (FA) and endotoxemia from bacteria.  Thus, dietary intake of high trans fats, inflammation originating from the gut can be the source of insulin receptor dysfunction through TLRs.
Nathan Goodyear

Toll-like receptor signaling links dietary fatty acids to the metabolic syndrome - 0 views

  • Activation of the innate immune system controls macronutrient metabolism
  • the innate immune response is the first line of defense against invading pathogens, wherein highly conserved pathogen-associated molecular patterns (PAMPs) are recognized by cognate pattern recognition receptors (PRRs
  • many studies have supported the idea that cytokine signaling directly promotes insulin resistance
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  • innate immune system may be causally linked to obesity
  • adipose tissue contains a substantial population of macrophages, and macrophage-driven adipose inflammation contributes significantly to the pathogenesis of obesity
  • Collectively, activation of the innate immune system is strongly associated with ASCVD, insulin resistance, and obesity, and recent evidence suggests that much of this association can be traced to a unique family of PRRs known as TLRs
  • TLRs are a family of type I transmembrane receptors, currently thought to comprise at least 13 members in mammals, that specifically recognize a variety of microbial PAMPs and trigger host cellular responses
  • Free SFAs have indeed been demonstrated to elicit TLR4-dependent and TLR2-dependent responses in several cell types.
  • Endogenous SFAs released from adipocytes activate cocultured macrophages via TLR4 [18], indicating the potential for cellular crosstalk in adipose tissue. Collectively, there is a growing body of evidence that SFAs promote, whereas long chain PUFA antagonize, TLR4-dependent and TLR2-dependent signaling in multiple cell models
  • In an elegant study, Shi et al. [16] demonstrated that SFAs activate TLR4-dependent signaling in both macrophages and adipocytes, and mice lacking TLR4 are protected against insulin resistance driven by intravenous lipid infusion
  • In addition to effects in macrophages and adipocytes, SFAs can activate TLR4 in the hypothalamus, which triggers a central inflammatory response that results in resistance to anorexigenic signals
  • endogenous SFAs can indeed promote innate immunity and inflammatory disease
  • This finding strongly supports the work of Hwang and coworkers [19–22] demonstrating that ω-3 PUFAs can effectively counteract SFA-induced TLR4 activation in cultured macrophages and dendritic cells.
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    high dietary fatty acids linked to metabolic syndrome through TLR.
Nathan Goodyear

Toll-like Receptors, Infection | Learn Science at Scitable - 0 views

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    basic summary of TLRs
Nathan Goodyear

Saturated Fatty Acids, but Not Unsaturated Fatty Acids, Induce the Expression of Cycloo... - 0 views

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    OMega-3 inhibits inflammation via decreased phosphorylation of lkappaBalpha and resultant decreased disassociation of NF-kappaB and decreased cytokine production.  This occurs through TLR-4.
Nathan Goodyear

Toll-like receptors in innate immunity | International Immunology | Oxford Academic - 0 views

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    good review of TLRs
Nathan Goodyear

Suppressive effects of sunitinib on a TLR activation-induced cytokine storm - ScienceDi... - 0 views

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    Toll-like receptors trigger cytokine storm.
Nathan Goodyear

Toll-like receptor 4 as a predictor of clinical outcomes of estrogen receptor-negative ... - 0 views

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    TLR4 promotes tumor progression, aggression, and resistance in ER-
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Windows customers support number 1-800-261-4071 - 0 views

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Nathan Goodyear

Obesity - Inducible Toll-like Receptor and NF-[kappa]B Regulatory Pathway Expression in... - 0 views

  • TLRs are functionally inducible and associated with downstream NF-B activation and proinflammatory cytokine production.
  • TLRs represent a family of receptors that are critical to the innate immune response against foreign pathogens and microorganisms
  • LPS has been shown to induce proinflammatory chemokine gene expression in differentiated human adipocytes through TLR and NF-B action
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  • Stimulation of TLRs initiates intracellular signaling cascades resulting in downstream NF-B and mitogen-activated protein kinase activation and production of proinflammatory chemokines associated with mechanisms of metabolic dysfunction and cardiovascular disease progression.
  • Elevated fatty acids levels associated with obesity activate TLR4 signaling in fat cells and macrophages, and induce insulin resistance in murine models
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    TLR, especially TLR-4, is directly involved in NF-KappaB activation and release of inflammatory cytokines
Nathan Goodyear

Toll-like receptors, inflammation, metabolism and obesity, Archives of Physiology and B... - 0 views

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    TLR, inflammation and obesity.  involved in inflammation.
Nathan Goodyear

Increased Toll-Like Receptor Activity in Patients With Metabolic Syndrome - 0 views

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    TLR2 and TLR4 are increased in patients with metabolic syndrome.  No surprise that IL-1Beta, IL-6, IL-8, TNF-alpha were increased as well.
Nathan Goodyear

Loss-of-Function Mutation in Toll-Like Receptor 4 Prevents Diet-Induced Obesity and Ins... - 0 views

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    HFD and LPS endotoxin induce inflammation through TLR-4 to increase insulin resistance and obesity.
Nathan Goodyear

The Journal of Steroid Biochemistry and Molecular Biology | Vol 141, Pgs 1-170, (May 20... - 0 views

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    vitamin D3 associated with down regulation of most TLRs associated with inflammation.  Though, vitamin D3 did increase TLR-10.
Nathan Goodyear

Lipopolysaccharide (LPS) increases the invasive ability of pancreatic cancer cells thro... - 0 views

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    Lipopolysaccharide (LPS) activates Toll-like 4 receptors (TLR-4) to increase cancer invasion, growth, and metastasis.
Nathan Goodyear

Role of toll-like receptor 4 on the immune escape of human oral squamous cell carcinoma... - 0 views

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    TLR-4 receptor increase increases chemotherapy resistance.
Nathan Goodyear

Pattern recognition receptors (PRRs): toll-like receptors | British Society for Immunology - 0 views

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    Not an article, but a good review of TLRs and their immunologic role
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