Last update 21 Mar 2024
IFNLR1
interferon lambda receptor 1
Last update 21 Mar 2024
Basic Info
Synonyms CRF2-12, CRF2/12, Cytokine receptor class-II member 12 + [17] |
Introduction The IFNLR1/IL10RB dimer is a receptor for the cytokine ligands IFNL2 and IFNL3 and mediates their antiviral activity. The ligand/receptor complex stimulate the activation of the JAK/STAT signaling pathway leading to the expression of IFN-stimulated genes (ISG), which contribute to the antiviral state. Determines the cell type specificity of the lambda interferon action. Shows a more restricted pattern of expression in the epithelial tissues thereby limiting responses to lambda interferons primarily to epithelial cells of the respiratory, gastrointestinal, and reproductive tracts. Seems not to be essential for early virus-activated host defense in vaginal infection, but plays an important role in Toll-like receptor (TLR)-induced antiviral defense. Plays a significant role in the antiviral immune defense in the intestinal epithelium. |
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Can interferon gamma prevent infection in critically ill patients at highest risk? A phase II randomised controlled trial - INFINIT (INterFeron to reduce INfection in InTensive care units)
A Phase 3, Randomized, Open-Label, Parallel Arm Study to Evaluate the Efficacy and Safety of 180 mcg Peginterferon Lambda-1a (Lambda) Subcutaneous Injection for 48 Weeks in Patients with Chronic Hepatitis Delta Virus (HDV) Infection - LIMT-2
An International, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel, Phase II Pilot Study to Evaluate the Efficacy and Safety of Recombinant Super-compound Interferon (rSIFN-co) Among Healthy Subjects in Close Contact With Confirmed COVID-19 Case(s) and Subjects With Mild or Asymptomatic COVID-19
100 Clinical Results associated with IFNLR1
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100 Translational Medicine associated with IFNLR1
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08 Dec 2023Biomolecules
Antiviral Functions of Type I and Type III Interferons in the Olfactory Epithelium.
Article
Author: Ahmad Zedan ; Ashley D Winters ; Wei Yu ; Shuangyan Wang ; Ying Ren ; Ashley Takeshita ; Qizhi Gong
The olfactory neuroepithelium (OE) is one of the few neuronal tissues where environmental pathogens can gain direct access. Despite this vulnerable arrangement, little is known about the protective mechanisms in the OE to prevent viral infection and its antiviral responses. We systematically investigated acute responses in the olfactory mucosa upon exposure to vesicular stomatitis virus (VSV) via RNA-seq. VSVs were nasally inoculated into C57BL/6 mice. Olfactory mucosae were dissected for gene expression analysis at different time points after viral inoculation. Interferon functions were determined by comparing the viral load in interferon receptor knockout (Ifnar1-/- and Ifnlr1-/-) with wildtype OE. Antiviral responses were observed as early as 24 h after viral exposure in the olfactory mucosa. The rapidly upregulated transcripts observed included specific type I as well as type III interferons (Ifn) and interferon-stimulated genes. Genetic analyses demonstrated that both type I and type III IFN signaling are required for the suppression of viral replication in the olfactory mucosa. Exogenous IFN application effectively blocks viral replication in the OE. These findings reveal that the OE possesses an innate ability to suppress viral infection. Type I and type III IFNs have prominent roles in OE antiviral functions.
04 Oct 2023Acta paediatrica (Oslo, Norway : 1992)
Understanding the immune profile of sudden infant death syndrome - proteomic perspectives.
Article
Author: Linda Ferrante ; Siri H Opdal ; Roger W Byard
AIM:
The aim of this study was to investigate a panel of immune proteins in cases of sudden infant death syndrome (SIDS). It was hypothesised that, in at least a subset of SIDS, a dysregulated immune response may be a contributing factor leading to death.
METHODS:
The subjects included 46 SIDS cases and 41 controls autopsied at the Department of Forensic Sciences, Norway. The causes of death in the controls were accidents/trauma. Samples of cerebrospinal fluid (CSF) were analysed quantitatively by Proximity Extension Assay (PEA).
RESULTS:
Initial results revealed that normalised protein expression differed in 35 proteins. For the purposes of this report five proteins that are involved in immune system were selected for analysis: IFNLR1 (p = 0.003), IL10 (p = 0.007), IRAK4 (p < 0.001) and IL6 (p = 0.035); all had lower protein concentrations in SIDS cases compared to controls except for CD28 (p = 0.024) which had higher protein concentrations in SIDS cases.
CONCLUSION:
The results confirm previous studies indicating that a dysregulation of the immune system may be a predisposing factor for SIDS. The results may indicate that these aberrant protein concentrations could lead to an inadequate response to immune triggers and uncontrolled defence mechanisms towards the common cold or other non-fatal infections.
01 Oct 2023Life science alliance
High-resolution kinetic characterization of the RIG-I-signaling pathway and the antiviral response.
Article
Author: Sandy S Burkart ; Darius Schweinoch ; Jamie Frankish ; Carola Sparn ; Sandra Wüst ; Christian Urban ; Marta Merlo ; Vladimir G Magalhães ; Antonio Piras ; Andreas Pichlmair ; Joschka Willemsen ; Lars Kaderali ; Marco Binder
RIG-I recognizes viral dsRNA and activates a cell-autonomous antiviral response. Upon stimulation, it triggers a signaling cascade leading to the production of type I and III IFNs. IFNs are secreted and signal to elicit the expression of IFN-stimulated genes, establishing an antiviral state of the cell. The topology of this pathway has been studied intensively, however, its exact dynamics are less understood. Here, we employed electroporation to synchronously activate RIG-I, enabling us to characterize cell-intrinsic innate immune signaling at a high temporal resolution. Employing IFNAR1/IFNLR-deficient cells, we could differentiate primary RIG-I signaling from secondary signaling downstream of the IFN receptors. Based on these data, we developed a comprehensive mathematical model capable of simulating signaling downstream of dsRNA recognition by RIG-I and the feedback and signal amplification by IFN. We further investigated the impact of viral antagonists on signaling dynamics. Our work provides a comprehensive insight into the signaling events that occur early upon virus infection and opens new avenues to study and disentangle the complexity of the host-virus interface.
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