Interferon Alpha Beta Promoter
Interferon Alpha Beta Promoter - Related Videos
03:11
Quantification of Bioactive Type-I Interferons using a Secreted Embryonic Alkaline Phosphatase Reporter Assay
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2025
This video demonstrates secreted embryonic alkaline phosphatase assay using HEK-Blue interferon-α/β reporter cells to quantify the type-I interferons (IFNs) released following stimulation of plasmacytoid dendritic cells by HIV-1 Infected CD4+ T cells.
10:10
Experimental Infection with Listeria monocytogenes as a Model for Studying Host Interferon-γ Responses
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2016
This protocol describes how to inoculate C57BL/6J mice with the EGD strain of Listeria monocytogenes (L. monocytogenes) and to measure interferon-γ (IFN-γ) responses by natural killer (NK) cells, natural killer T (NKT) cells, and adaptive T lymphocytes post-infection. This protocol also describes how to conduct survival studies in mice after infection with a modified LD50 dose of the pathogen.
10:00
High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
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Cited by 2 •
2015
This protocol describes a high-throughput qRT-PCR assay for the analysis of type I and III IFN expression signatures. The assay discriminates single base pair differences between the highly similar transcripts of these genes. Through batch assembly and robotic pipetting, the assays are consistent and reproducible.
01:25
Beta
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2024
Beta is a crucial metric in finance used to assess an investment's risk and expected return relative to the overall market. It is calculated as the slope of the line in a scatterplot that compares the returns of an individual stock to the returns of the market benchmark, typically represented by a broad market index. Beta quantifies how much a stock's price moves in response to market movements, providing insight into its volatility and systematic risk. A beta of one indicates that the stock's...
02:17
An In Vitro Assay for Screening Interferons as Potent Inhibitors of Zika Virus Growth
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2025
The video demonstrates an in vitro assay for screening interferons with antiviral activity against the Zika virus, a human pathogen. Within the host cell, the Zika virus undergoes multiplication upon internalization, infecting neighboring cells and creating distinct zones or viral plaques. Type I interferon, acting as an antiviral agent, hinders virus multiplication, thereby preventing the formation of viral plaques in the host cell monolayer.
FAQs
Activation depends on coordinated occupancy of several promoter elements, not simply on the presence of a single transcription factor. Infection-associated sensing pathways activate IRF3, IRF7, NF-κB, and AP-1, whose combined binding stimulates transcription of type I interferon genes. This organization allows promoter activity to reflect integrated innate immune signaling during an infectious challenge.
These factors act together at promoter elements to connect upstream pathogen sensing with transcriptional control. Their coordinated binding provides the regulatory step that stimulates type I interferon gene expression, rather than treating each signaling component as an isolated input. Studying this cooperation helps explain how innate immune pathways produce an interferon response.
Different pathogens or experimental stimuli can produce distinct levels of innate immune activation, making promoter activity useful for comparative analysis. Reporter assays allow investigators to examine how strongly particular challenges activate the regulatory sequence and to relate those differences to signaling pathways that control type I interferon production.
A promoter sequence is used as the regulatory test element in a reporter assay, and reporter output provides a measurable indication of promoter activation. Investigators can evaluate that output after different pathogen or stimulus conditions, then compare the responses to determine how strongly innate immune signaling engages type I interferon transcriptional control.
The approach supports comparisons among pathogens, experimental stimuli, and signaling conditions by using promoter-driven reporter activity as a common readout. Such comparisons can reveal differences in innate immune activation and help investigators study how regulatory pathways influence type I interferon production, without relying only on the identity of the infectious challenge.
Its activity connects molecular signaling events with an important early antiviral response. In research models, promoter-based measurements help assess innate immune activation, investigate regulation of type I interferon production, and examine responses relevant to infected and neighboring cells. These applications make the promoter useful for studying how infection-related signals shape immune defense.