ArticleGlia2010
Interactions between TLR7 and TLR9 agonists and receptors regulate innate immune responses by astrocytes and microglia.
Article in Glia, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
64 citing papers in PubMed, 1 synthesis or guideline pooled it, 105 citations in OpenAlex.
- The Key Drivers of Brain Injury by Systemic Inflammatory Responses after Sepsis: Microglia and Neuroinflammation.Molecular neurobiology · 2023Pooled it
- Prenatal stress alters offspring neurovascular, autonomic, and immune development in animal models of neuropsychiatric and cardiometabolic disorders.Journal of neuroendocrinology · 2026Review
- Microglia-Dependent BDNF Signaling in the Dentate Gyrus Underlies the Antidepressant Effects of Gardiquimod, a Toll-Like Receptor 7 Agonist, in Chronically Stressed Mice.Neurochemical research · 2026Article
- Targeting Reactive Astrocytes with Flavonoids to Alleviate Neuroinflammation and Promote Synaptic Function.Molecular neurobiology · 2026Review
- Decoding IFN-mediated immunity and cell dynamics in viral encephalitis: Insights from coxsackievirus B3 infection.iScience · 2026Article
- MicroRNA-29a-5p contributes to neuroinflammation through TLR7.Journal of neuroinflammation · 2026Article
- Simian Immunodeficiency Virus-Derived Extracellular Vesicles Induce a Chronic Inflammatory Phenotype in Healthy Astrocytes Unresolved by Anti-Retroviral Therapy.Pharmaceutics · 2025Article
- Neuroimmune mechanisms of neuropsychiatric systemic lupus erythematosus.Current opinion in immunology · 2025Review
- Dual Targeting of TLR9 and cGAS-STING Pathways Attenuates Astrocyte Inflammatory Activation: Potential Implication in Multiple Sclerosis.Neurochemical research · 2025Article
- An innate immune response to adeno-associated virus genomes decreases cortical dendritic complexity and disrupts synaptic transmission.Molecular therapy : the journal of the American Society of Gene Therapy · 2024Article
- Seasonal influenza vaccines differentially activate and modulate toll-like receptor expression within the tumor microenvironment.Frontiers in oncology · 2024Article
- Targeting neuroinflammation in Alzheimer's disease: from mechanisms to clinical applications.Neural regeneration research · 2023Review
- Molecular subtypes of ALS are associated with differences in patient prognosis.Nature communications · 2023Article
- Expression and mechanisms of interferon-stimulated genes in viral infection of the central nervous system (CNS) and neurological diseases.Frontiers in immunology · 2022Review
- Distinct trans-placental effects of maternal immune activation by TLR3 and TLR7 agonists: implications for schizophrenia risk.Scientific reports · 2021Article
- Article
- Beyond the GFAP-Astrocyte Protein Markers in the Brain.Biomolecules · 2021Review
- Innate immune responses after stimulation with Toll-like receptor agonists in ex vivo microglial cultures and an in vivo model using mice with reduced microglia.Journal of neuroinflammation · 2021Article
- Exosomes in Epilepsy of Tuberous Sclerosis Complex: Carriers of Pro-Inflammatory MicroRNAs.Non-coding RNA · 2021Article
- Modulating neuroinflammation in neurodegeneration-related dementia: can microglial toll-like receptors pull the plug?Metabolic brain disease · 2021Review
4 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Toll-like receptors 7 (TLR7) and 9 (TLR9) are important mediators of innate immune responses. Both receptors are located in endosomal compartments, recognize nucleic acids, and signal via Myeloid differentiation factor 88 (MyD88). In the current study, we analyzed TLR7 and TLR9 induced activation of astrocytes and microglia, two cell types that contribute to innate immune responses in the CNS. TLR7 and TLR9 agonists induced similar cytokine profiles within each cell type. However, there were notable differences in the cytokine profile between astrocytes and microglia, including the production of the anti-inflammatory cytokine IL-10 and antiapoptotic cytokines G-CSF and IL-9 by microglia but not astrocytes. Costimulation studies demonstrated that the TLR7 agonist, imiquimod, could inhibit TLR9 agonist-induced innate immune responses, in both cell types, in a concentration-dependent manner. Surprisingly, this inhibition was not mediated by TLR7, as deficiency in TLR7 did not alter suppression of the TLR9 agonist-induced responses. The suppression of innate immune responses was also not due to an inhibition of TLR9 agonist uptake. This suggested that imiquimod suppression may be a direct effect, possibly by blocking CpG-ODN binding and/or signaling with TLR9, thus limiting cell activation. An antagonistic relationship was also observed between the two receptors in microglia, with TLR7 deficiency resulting in enhanced cytokine responses to CpG-ODN stimulation. Thus, both TLR7 and its agonist can have inhibitory effects on TLR9-induced cytokine responses in glial cells.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.