{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nThe collection of studies provided"}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "19"}]}, {"type": "t", "text": "collectively centers on the functions of several SLAM (signaling lymphocyte activation molecule) family receptors (including Ly108, SLAMF6, CD84, among others) and their associated adaptor molecules (such as SAP) in modulating immune responses. These studies elucidate how distinct receptor isoforms affect B cell tolerance, T cell–B cell adhesion, cytotoxic synapse organization, and the thresholds of immune activation that are critical in autoimmunity (for example, lupus) and antitumor responses. They describe both positive (costimulatory) and negative (inhibitory) signaling mechanisms governed by differential receptor engagement, isoform expression, and dynamic phosphorylation events, thereby fine-tuning immune cell interactions and effector functions."}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nNotably, despite the detailed exploration of these immunoregulatory pathways, none of the abstracts mention or address SNORD115-40. SNORD115-40, a member of the small nucleolar RNA family implicated in post‐transcriptional modifications and alternative splicing regulation, does not appear in the context of these studies. As such, its function, if any, in the immune signaling networks described—ranging from tolerance checkpoints and T cell help to germinal center dynamics and cytolytic synapse assembly—remains undefined in the literature provided."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "19"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn summary, while the body of work summarized above significantly advances our understanding of how SLAM receptors and their various isoforms regulate both innate and adaptive immune responses in health and disease, it does not provide any insights into a role for SNORD115-40. Therefore, within the context of these studies, the function of SNORD115-40 remains uncharacterized, highlighting an avenue for future research should a potential link with immune regulation or autoimmunity exist.\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Kirthi Raman Kumar, Liunan Li, Mei Yan, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "A role for Ly108 in the induction of promyelocytic zinc finger transcription factor in developing thymocytes."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Immunol (2013)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.4049/jimmunol.1202145"}], "href": "https://doi.org/10.4049/jimmunol.1202145"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "23355739"}], "href": "https://pubmed.ncbi.nlm.nih.gov/23355739"}]}, {"type": "r", "ref": 10, "children": [{"type": "t", "text": "Maren Claus, Stephan Meinke, Rauf Bhat, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Regulation of NK cell activity by 2B4, NTB-A and CRACC."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Front Biosci (2008)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.2741/2735"}], "href": "https://doi.org/10.2741/2735"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "17981603"}], "href": "https://pubmed.ncbi.nlm.nih.gov/17981603"}]}, {"type": "r", "ref": 11, "children": [{"type": "t", "text": "Eric B Wong, Chetna Soni, Alice Y Chan, et al. "}, {"type": "b", "children": [{"type": "t", "text": "B cell-intrinsic CD84 and Ly108 maintain germinal center B cell tolerance."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Immunol (2015)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.4049/jimmunol.1403023"}], "href": "https://doi.org/10.4049/jimmunol.1403023"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "25801429"}], "href": "https://pubmed.ncbi.nlm.nih.gov/25801429"}]}, {"type": "r", "ref": 12, "children": [{"type": "t", "text": "Coco Chu, Yifeng Wang, Xu Zhang, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "Soluble SLAMF6 Receptor Induces Strong CD8"}, {"type": "a", "children": [{"type": "t", "text": "sup"}], "href": "sup"}, {"type": "t", "text": "+"}, {"type": "a", "children": [{"type": "t", "text": "/sup"}], "href": "/sup"}, {"type": "t", "text": " T-cell Effector Function and Improves Anti-Melanoma Activity "}, {"type": "a", "children": [{"type": "t", "text": "i"}], "href": "i"}, {"type": "t", "text": "In Vivo"}, {"type": "a", "children": [{"type": "t", "text": "/i"}], "href": "/i"}, {"type": "t", "text": "."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Cancer Immunol Res (2018)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1158/2326-6066.CIR-17-0383"}], "href": "https://doi.org/10.1158/2326-6066.CIR-17-0383"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "29305520"}], "href": "https://pubmed.ncbi.nlm.nih.gov/29305520"}]}, {"type": "r", "ref": 14, "children": [{"type": "t", "text": "Joyce K Hu, Jordan C Crampton, Michela Locci, et al. 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