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Open research questions in interferon and immune responses

58 unresolved questions extracted from the limitations and future-work sections of 192 interferon and immune responses papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • While prior investigations have provided preliminary phenotypic and bioinformatic characterizations of BANF1 across various disease states, comprehensive analyses detailing its functional roles and mechanistic underpinnings in diverse pathological contexts remain scarce.

    Barrier-to-Autointegration Factor 1: a key regulator of nuclear envelope integrity, genome stability, and disease progression · 2026 · DOI

  • Radiotherapy kills cancer cells by inducing DNA damage, but adaptive responses that buffer injury and limit immunogenic signaling remain incompletely understood.

    XRRA1 acts as a molecular brake on radiation-induced DNA damage signaling and immunogenic cell death in tumor cells. · 2026 · DOI

  • Further mechanistic research into the role of STING in ILD pathogenesis is warranted to explore the possibility of STING-centered therapeutics for ILDs.

    Interstitial lung disease and the STING pathway · 2026 · DOI

  • Abstract Toxoplasma gondii activates innate immunity via TLR11/12 in mice, but the lack of functional human counterparts leaves a gap in understanding parasite sensing in humans.

    β-catenin-driven innate and metabolic reprograming in macrophages fuel T-cell-dependent inflammation in Toxoplasma gondii infection: implications for therapeutic intervention · 2026 · DOI

  • IFNε was initially characterized in the female reproductive tract (FRT), where it provides broad antiviral protection, but its roles outside the FRT remain poorly defined.

    Constitutive interferon epsilon expression shapes antiviral epithelial states in the female reproductive tract and intestine · 2026 · DOI

  • During blood-stage Plasmodium infection, effective immune control hinges on the IL12{beta}-IFN-{gamma} axis, yet how this pathway is transcriptionally tuned in vivo remains incompletely defined.

    Cellular nucleic acid-binding protein (CNBP) dependent cytokine programming shapes host defense against Plasmodium infection · 2026 · DOI

  • Replication stress, a major source of DNA damage and vulnerability in cancer, activates innate immunity through both the cGAS-STING and RIG-I-like receptor (RLR) pathways, yet the mechanism for RLR activation remains poorly understood despite frequent suppression of cGAS-STING in cancer.

    RIG-I-like receptors sense replication stress through ribosomal DNA integrity to drive inflammation · 2026 · DOI

  • Excess IFN-I is associated with prominent neutrophil accumulation; however, the contribution of neutrophils to IFN-I overproduction remains underexplored.

    Neutrophils rapidly release nucleoli-stored IFNα during infection · 2026 · DOI

  • While cGAS-STING signaling is known to regulate bone homeostasis via macrophage-intrinsic mechanisms, its role in osteoblast-mediated control of osteoclastogenesis remains poorly defined.

    cGAS-STING induced IFN-β acts as a dual regulator of osteoclastogenesis via direct and osteoblast-mediated mechanisms · 2026 · DOI

  • Influenza A virus (IAV) remains a major cause of respiratory morbidity and mortality, yet the role of Toll-like receptor 7 (TLR7), an RNA sensor, and its downstream signaling events, such as interferon regulatory factor 7 (IRF7), in IAV infection remain unclear.

    IRF7 deficiency increases disease severity independently of TLR7 recognition in Influenza A infection in mice · 2026 · DOI

  • cGAS-STING is a central regulator of neuroinflammation across brain disorders (17, 37, 40). Beyond microglia, this signaling axis is increasingly recognized as active in neurons, astrocytes, and ECs, 8 J Clin Invest. 2026;136(11):e204550 https://doi.org/10.1172/JCI204550 The Journal of Clinical Investigation REVIEW SERIES: THE CGAS-STING PATHWAY: DNA SENSING IN HEALTH AND DISEASE Table 1.

    Expanding roles of cGAS-STING signaling in neuroinflammation · 2026 · DOI

  • Moreover, we focused on the downstream consequences of STING activation, while the upstream mechanisms remain unexplored. While the STING/ZBP1 axis remains to be vali- dated in human AKI samples, this study clarifies key pathogenic mechanisms in the tubular epithelium.

    STING-STAT1-ZBP1 axis orchestrates PANoptotic signaling in ischemia-reperfusion induced acute kidney injury · 2026 · DOI

  • The EIF3F-ACSL4 axis-mediated CD8+ T cell exclusion and functional exhaustion requires investigation in MAFLD-related immunosuppression. While this immunosuppressive mechanism has been demonstrated in HCC, its activation status and therapeutic reversal potential specifically in the MAFLD microenvironment before malignant transformation has not been characterized.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The spatial transcriptomics data integration approach used to identify HCC-specific DUBs within MAFLD contexts requires validation with independent cohorts. The study successfully established the multi-parameter DUBS system, but validation in spatially-resolved transcriptomic datasets from additional patient cohorts with varying MAFLD stages and HCC progression states is needed.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The functional interplay between the four core DUB molecules (USP39, USP32, OTUB2, EIF3F) in the MAFLD-HCC comorbid process requires investigation. Current mechanistic studies address individual DUB functions, but the synergistic regulatory mechanisms and cooperative interactions among these deubiquitinases in dual lipid metabolic and immune remodeling pathways remain unexplored.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The mechanism by which EIF3F modulates translational efficiency of lipid metabolism proteins in hepatocytes requires detailed characterization. The proposed role of EIF3F in exacerbating lipid accumulation and oxidative stress through regulation of protein translation efficiency in MAFLD-context has not been mechanistically validated.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The DUBS evaluation system comprising USP39, USP32, OTUB2, and EIF3F requires validation across different geographic populations. Since MAFLD demonstrates significant geographical heterogeneity in prevalence (6-35%), the prognostic accuracy and clinical utility of this four-parameter molecular classification system across diverse ethnic and metabolic contexts remains undetermined.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The proposed epigenetic regulatory functions of EIF3F in MAFLD-to-HCC progression require experimental validation. The hypothesis that EIF3F enhances oncogenic factor expression through epigenetic mechanisms and stabilizes key oncoproteins via deubiquitination in the MAFLD context has not been tested in relevant animal models or patient-derived samples.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The regulatory role and molecular mechanisms of EIF3F in MAFLD pathogenesis remain undefined. Current mechanistic understanding of EIF3F focuses on HCC and other solid tumors, but its specific contribution to lipid metabolic reprogramming and immune microenvironment remodeling during MAFLD progression has not been elucidated.

    ​​Integrating machine learning and spatial transcriptomics uncovers shared immunomodulatory deubiquitinases in MAFLD and HCC · 2026 · DOI

  • The IgG receptor function of TRIM21 (reference 16) and its structural, thermodynamic, and kinetic conservation suggest potential therapeutic applications, but in vivo validation of TRIM21-targeted antivirals for influenza A virus infection using humanized mouse models or ferret challenge studies has not been reported.

    TRIM21 is a molecular rheostat for influenza A virus replication · 2026 · DOI

  • PKR-dependent translation inhibition is regulated by TRIM21 upon virus infection (reference 21), but the kinetic parameters of TRIM21-mediated ubiquitination of PKR, the specific lysine residues targeted, and the temporal coordination with sequential deubiquitination enzymes (reference 15) during influenza A virus infection remain unquantified.

    TRIM21 is a molecular rheostat for influenza A virus replication · 2026 · DOI

  • The paper cites conflicting phenotypes where TRIM21 restricts coxsackievirus B3 replication via MAVS-IRF3 activation (reference 20) yet promotes rabies virus production by degrading IRF7 (reference 23). The structural and biochemical determinants governing TRIM21 substrate selectivity between MAVS, IRF3, IRF7, IFI16, and SAMHD1 across different viral infections have not been systematically mapped.

    TRIM21 is a molecular rheostat for influenza A virus replication · 2026 · DOI

  • While TRIM21 promotes H5N1 avian influenza virus production through the SQSTM1-NRF2-KEAP1 oxidative stress axis (reference 24), the mechanistic basis for why TRIM21 acts as a molecular rheostat with opposing effects across different influenza A virus strains remains uncharacterized. Direct comparative studies measuring TRIM21 ubiquitination activity, IRF3/IRF7 signaling kinetics, and viral titers across seasonal, pandemic, and highly pathogenic influenza A virus isolates are needed.

    TRIM21 is a molecular rheostat for influenza A virus replication · 2026 · DOI

  • Although previous research outside the context of AD has indicated that the IL-6-STAT3 pathway may regulate the cGAS-STING pathway, the exact molecular mechanisms through which IL-6-STAT3 influences cGAS-STING in AD are still not well understood.

    Interleukin-6 deficiency reduces neuroinflammation by inhibiting the STAT3-cGAS-STING pathway in Alzheimer’s disease mice · 2024 · DOI

  • Short linear amino acid (AA) molecular mimics can elicit cross-reactive antibodies and T cells from the host, but the prevalence of such mimics throughout the human virome has not been fully explored.

    Molecular mimicry as a mechanism of viral immune evasion and autoimmunity · 2024 · DOI

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58 open questions have been extracted from the limitations and future-work passages of 192 interferon and immune responses papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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