{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n IFNA7, a member of the type I interferon family, plays a multifaceted role in antiviral defense and immunomodulation. Its expression is preferentially induced by IRF7—unlike other interferon‐α subtypes that can be activated by both IRF3 and IRF7—suggesting that IFNA7 contributes to the delayed, yet sustained, type I interferon response during viral infection."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": " Analysis of the genomic organization of the interferon‐α gene cluster has revealed that the promoter region of IFNA7 exhibits moderate nuclear matrix binding, implying that its transcriptional regulation is influenced by chromatin architecture and stress‐induced duplex destabilization."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": " Molecular characterization studies have shown that among the several variants identified for IFNA7, only the IFNA7a form is prevalent in normal populations, reflecting its evolutionary conservation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": " Although IFNA7 can activate natural killer cell cytotoxicity, it requires higher concentrations compared to other IFN‐α species, indicating a functional diversification within the interferon family."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": " In addition, genetic variation at the IFNA7/IFNA14 locus has been associated with overall survival in colorectal cancer, underscoring its potential prognostic value in clinical settings."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "6"}]}, {"type": "t", "text": " In the context of melanoma susceptibility, IFNA7 is among a cluster of interferon genes implicated in cytokine signaling pathways that regulate antitumor immunity."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "7"}]}, {"type": "t", "text": " Comparative studies in non‐human species, such as the giant panda, further demonstrate that IFNA7, alongside other IFN‐α subtypes, displays antiviral and antiproliferative activities with subtype‐dependent potency."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "8"}]}, {"type": "t", "text": " Finally, post‐transcriptional regulatory mechanisms—including competing endogenous RNA (ceRNA) networks—involve IFN family members such as IFNA7, suggesting an additional layer of fine‐tuning in interferon expression during the innate immune response."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "9"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Collectively, these findings illustrate that IFNA7 not only functions as an important antiviral effector by being precisely regulated at both the transcriptional and post‐transcriptional levels but also that its genetic variation may have clinical implications in cancer, thereby highlighting its diverse role in immune surveillance and host defense.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "R Lin, P Génin, Y Mamane, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Selective DNA binding and association with the CREB binding protein coactivator contribute to differential activation of alpha/beta interferon genes by interferon regulatory factors 3 and 7."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Mol Cell Biol (2000)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1128/MCB.20.17.6342-6353.2000"}], "href": "https://doi.org/10.1128/MCB.20.17.6342-6353.2000"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "10938111"}], "href": "https://pubmed.ncbi.nlm.nih.gov/10938111"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "S Goetze, A Gluch, C Benham, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Computational and in vitro analysis of destabilized DNA regions in the interferon gene cluster: potential of predicting functional gene domains."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Biochemistry (2003)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1021/bi026496+"}], "href": "https://doi.org/10.1021/bi026496+"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "12515550"}], "href": "https://pubmed.ncbi.nlm.nih.gov/12515550"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "M Hussain, D S Gill, M J Liao "}, {"type": "b", "children": [{"type": "t", "text": "Identification of interferon-alpha 7, -alpha 14, and -alpha 21 variants in the genome of a large human population."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Interferon Cytokine Res (1996)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1089/jir.1996.16.853"}], "href": "https://doi.org/10.1089/jir.1996.16.853"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "8910771"}], "href": "https://pubmed.ncbi.nlm.nih.gov/8910771"}]}, {"type": "r", "ref": 4, "children": [{"type": "t", "text": "S Cohen, B Velan, H Grosfeld, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Cloning, expression and biological activity of a new variant of human interferon alpha identified in virus induced lymphoblastoid cells."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Dev Biol Stand (1985)"}]}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "2995168"}], "href": "https://pubmed.ncbi.nlm.nih.gov/2995168"}]}, {"type": "r", "ref": 5, "children": [{"type": "t", "text": "C D Platsoucas, F E Fox, E Oleszak, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Regulation of natural killer cytotoxicity by recombinant alpha interferons. Augmentation by IFN-alpha 7, an interferon similar to IFN-alpha J."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Anticancer Res (1989)"}]}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "2817813"}], "href": "https://pubmed.ncbi.nlm.nih.gov/2817813"}]}, {"type": "r", "ref": 6, "children": [{"type": "t", "text": "Shun Lu, Barbara Pardini, Bowang Cheng, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Single nucleotide polymorphisms within interferon signaling pathway genes are associated with colorectal cancer susceptibility and survival."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "PLoS One (2014)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1371/journal.pone.0111061"}], "href": "https://doi.org/10.1371/journal.pone.0111061"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "25350395"}], "href": "https://pubmed.ncbi.nlm.nih.gov/25350395"}]}, {"type": "r", "ref": 7, "children": [{"type": "t", "text": "Shenying Fang, Jiachun Lu, Xinke Zhou, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Functional annotation of melanoma risk loci identifies novel susceptibility genes."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Carcinogenesis (2020)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1093/carcin/bgz173"}], "href": "https://doi.org/10.1093/carcin/bgz173"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "31630191"}], "href": "https://pubmed.ncbi.nlm.nih.gov/31630191"}]}, {"type": "r", "ref": 8, "children": [{"type": "t", "text": "Xue-Mei Tan, Yang Tang, Yun-Fei Yang, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Gene cloning, sequencing, expression and biological activity of giant panda (Ailuropoda melanoleuca) interferon-alpha."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Mol Immunol (2007)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.molimm.2006.12.017"}], "href": "https://doi.org/10.1016/j.molimm.2006.12.017"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "17346794"}], "href": "https://pubmed.ncbi.nlm.nih.gov/17346794"}]}, {"type": "r", "ref": 9, "children": [{"type": "t", "text": "Tominori Kimura, Shiwen Jiang, Noriyuki Yoshida, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Interferon-alpha competing endogenous RNA network antagonizes microRNA-1270."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Cell Mol Life Sci (2015)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1007/s00018-015-1875-5"}], "href": "https://doi.org/10.1007/s00018-015-1875-5"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "25746225"}], "href": "https://pubmed.ncbi.nlm.nih.gov/25746225"}]}]}]}