{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nAlthough none of the abstracts directly mention MIR4763, the studies collectively illuminate molecular mechanisms governing immune cell activation and tolerance that may inform potential roles for this microRNA. For example, the work by described in PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "demonstrates that NK cell activation depends on Fyn‐mediated signals that promote the acquisition of inhibitory receptors until sufficient self‐MHC recognition is achieved, suggesting that fine‐tuning of signaling thresholds is critical. In this context, MIR4763 may be hypothesized to contribute to the post‐transcriptional regulation of key signaling mediators or receptor expression that underpin this balance."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nFurther insights arise from studies of allelic variation and post‐translational modifications of Ly49 receptors. The differential ligand specificity due to amino acid polymorphisms in extracellular domains (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "and the modulation of receptor–ligand affinity via glycosylation (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "highlight complex regulatory networks that refine immune cell responsiveness. Such multifaceted control implies that additional regulators including microRNAs like MIR4763 could target transcripts involved in receptor maturation or modification, thereby adjusting signaling outputs.\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nMoreover, the coordinated regulation of activating and inhibitory receptors extends beyond NK cells to other lymphocytes, affecting cell migration and maturation (PMID."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": " Equally, the comparable binding affinities reported for activating versus inhibitory receptors (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": "underscore a balance that is essential for immune tolerance and defense. In aggregate, these findings provide a conceptual framework in which MIR4763 might function as a fine‐tuner within these networks, potentially regulating transcript levels of key kinases, receptors, or adapter molecules to ensure proper signal integration and immune homeostasis.\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Bente Lowin-Kropf, Béatrice Kunz, Pascal Schneider, et al. "}, {"type": "b", "children": [{"type": "t", "text": "A role for the src family kinase Fyn in NK cell activation and the formation of the repertoire of Ly49 receptors."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Eur J Immunol (2002)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1002/1521-4141(200203)32:3"}, {"type": "a", "children": [{"type": "t", "text": "773::AID-IMMU773"}], "href": "773::AID-IMMU773"}, {"type": "t", "text": "3.0.CO;2-U"}], "href": "https://doi.org/10.1002/1521-4141(200203"}, {"type": "t", "text": "32:3"}, {"type": "a", "children": [{"type": "t", "text": "773::AID-IMMU773"}], "href": "773::AID-IMMU773"}, {"type": "t", "text": "3.0.CO;2-U) PMID: "}, {"type": "a", "children": [{"type": "t", "text": "11870621"}], "href": "https://pubmed.ncbi.nlm.nih.gov/11870621"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Elizabeth T Silver, Kerry J Lavender, Dong-Er Gong, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Allelic variation in the ectodomain of the inhibitory Ly-49G2 receptor alters its specificity for allogeneic and xenogeneic ligands."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Immunol (2002)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.4049/jimmunol.169.9.4752"}], "href": "https://doi.org/10.4049/jimmunol.169.9.4752"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "12391184"}], "href": "https://pubmed.ncbi.nlm.nih.gov/12391184"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "Llewellyn H Mason, Jami Willette-Brown, Stephen K Anderson, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Receptor glycosylation regulates Ly-49 binding to MHC class I."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Immunol (2003)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.4049/jimmunol.171.8.4235"}], "href": "https://doi.org/10.4049/jimmunol.171.8.4235"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "14530347"}], "href": "https://pubmed.ncbi.nlm.nih.gov/14530347"}]}, {"type": "r", "ref": 4, "children": [{"type": "t", "text": "Gili Hart, Liat Flaishon, Shirly Becker-Herman, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Tight regulation of IFN-gamma transcription and secretion in immature and mature B cells by the inhibitory MHC class I receptor, Ly49G2."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Immunol (2005)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.4049/jimmunol.175.8.5034"}], "href": "https://doi.org/10.4049/jimmunol.175.8.5034"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "16210606"}], "href": "https://pubmed.ncbi.nlm.nih.gov/16210606"}]}, {"type": "r", "ref": 5, "children": [{"type": "t", "text": "Brian J Ma, Carla M Craveiro Salvado, Kevin P Kane "}, {"type": "b", "children": [{"type": "t", "text": "The activating Ly49W and inhibitory Ly49G NK cell receptors display similar affinities for identical MHC class I ligands."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Immunogenetics (2014)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1007/s00251-014-0777-2"}], "href": "https://doi.org/10.1007/s00251-014-0777-2"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "24797174"}], "href": "https://pubmed.ncbi.nlm.nih.gov/24797174"}]}]}]}