Cytokine Nanoparticles
Cytokine Nanoparticles - Related Videos
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Expression of Exogenous Cytokine in Patient-derived Xenografts via Injection with a Cytokine-transduced Stromal Cell Line
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Cited by 2 •
2017
Described here is a method for producing exogenous cytokine in patient-derived xenograft (PDX) mice via weekly intraperitoneal injection of a cytokine-transduced stromal cell line. This method broadens the utility of PDX and provides the option for transient or sustained exogenous cytokine delivery in a multitude of PDX models.
08:37
Microglia as a Surrogate Biosensor to Determine Nanoparticle Neurotoxicity
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Cited by 16 •
2016
Microglia (immune cells of the brain), are used as a surrogate biosensor to determine how nanoparticles influence neurotoxicity. We describe a series of experiments designed to assay microglial response to nanoparticles and exposure of hypothalamic neurons to supernatant from activated microglia to determine neurotoxicity.
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Determining Nanoparticle-Induced Toxicity in Neurons Using Microglia as a Surrogate Biosensor
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2025
This video demonstrates a method to assess the neurotoxic effects of nanoparticles using microglia. It outlines the steps for activating microglia with nanoparticles, filtering conditioned media to isolate microglia-derived pro-inflammatory cytokines, and testing hypothalamic neuron toxicity with the conditioned media.
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Nanoparticle-Mediated Enhanced Delivery of an Anti-Inflammatory Drug in Microglia-Like Cells
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2025
Take cultures of human monocyte-derived microglia-like cells.Introduce nanoparticles containing an anti-inflammatory drug into the experimental culture and the free drug into the control.The nanoparticles feature a hydrophilic shell and a hydrophobic core encapsulating the lipophilic drug.The cells endocytose the nanoparticles, which release the drug intracellularly, enhancing its delivery.The free drug enters by passive diffusion, a process constrained by the concentration gradient, which...
02:57
Assessing Antiviral Cytokine Production in Response to Viral Infection
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2026
Source: Zhang, J., et al. Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production. J. Vis. Exp. (2014)This video demonstrates the process of infecting murine fibroblast cells with herpesvirus and monitoring the resulting antiviral cytokine release and gene expression. It outlines key steps, including viral infection, media collection for cytokine quantification, and cell harvesting for gene expression analysis.
FAQs
Particle size and surface chemistry help determine how these systems move through biological environments, distribute among tissues, and interact with immune cells. Their design can therefore affect whether cytokine signals remain localized near target tissues or reach broader sites. In infection research, adjusting these properties supports efforts to direct immune activation toward relevant cells while limiting unintended distribution.
Shielding can protect cytokines from premature degradation before they reach their intended site, while controlled release regulates when the immune signal becomes available. Together, these features may preserve cytokine activity and extend its useful delivery window. The resulting control is important when researchers want to strengthen a local response without exposing the entire body to the same signal intensity.
Freely administered cytokines can produce broader systemic exposure, whereas nanoparticle-based delivery is designed to concentrate signals near selected tissues or immune cells. Packaging or displaying the protein also provides opportunities to manage stability and release. This distinction makes the nanoparticle approach useful when researchers need to tune the location, duration, or intensity of immune signaling rather than deliver the protein without a carrier.
Development focuses on how the cytokine is packaged or displayed, how the particle is shielded, and how its size and surface chemistry affect transport, uptake, and distribution. Researchers can use these features to align delivery behavior with a desired immune target or tissue. The design objective is not simply to carry the protein, but to control where and when its signal acts.
These platforms are investigated when researchers aim to improve cytokine delivery during antiviral or antibacterial studies, support vaccine development, or examine localized immune responses. Their ability to concentrate signals near relevant tissues or immune cells may help shape protective responses while reducing unwanted systemic exposure. They also provide a way to study how delivery location influences infection-related immunity.
Localized delivery can help researchers examine whether concentrating immune signals near target tissues promotes protection or instead contributes to harmful inflammation. Because particle properties influence distribution and uptake, different designs can expose how signal placement affects immune outcomes. This is particularly relevant in infection studies, where effective activation and excessive inflammatory responses may have opposing consequences.