{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nAlthough none of the provided studies directly mention MIR4635, the insights they offer into CD1‐mediated lipid antigen presentation and T cell receptor (TCR) adaptability may furnish a conceptual framework for investigating how microRNAs such as MIR4635 could regulate these immunological processes. For instance, one study demonstrated that the invariant Valpha14Jalpha18 TCR can assume alternative conformations to accommodate the diverse structures of self and foreign glycolipids when presented by CD1d, thereby facilitating effective NKT cell activation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nComplementary investigations in murine systems have shown that proper cell surface expression of CD1 isoforms is maintained independently of endogenous glycosphingolipid synthesis, and that genetic variation—as seen with a novel Cd1d2 allele—does not preclude normal expression patterns."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": " These findings help define the baseline requirements for antigen presentation, a process that could be fine‐tuned by regulatory elements including microRNAs.\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nFurther, studies utilizing double transgenic mouse models revealed that CD1b-autoreactive T cells exhibit an innate-like, activated phenotype—capable of rapid proinflammatory cytokine secretion and contribution to early anti-microbial immunity."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": " In addition, comparative analyses between mouse strains have underscored that intrinsic factors, including the strength of CD1d-mediated TCR signals, play a critical role in dictating the differentiation and subset distribution of NKT cells."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": " Although these reports do not address MIR4635, the complex regulation of antigen presentation and T cell activation they describe suggests that future studies should assess whether MIR4635 participates in refining these key immune pathways.\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Dirk M Zajonc, Paul B Savage, Albert Bendelac, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Crystal structures of mouse CD1d-iGb3 complex and its cognate Valpha14 T cell receptor suggest a model for dual recognition of foreign and self glycolipids."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Mol Biol (2008)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.jmb.2008.01.061"}], "href": "https://doi.org/10.1016/j.jmb.2008.01.061"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "18295796"}], "href": "https://pubmed.ncbi.nlm.nih.gov/18295796"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Vania Manolova, Yoshio Hirabayashi, Lucia Mori, et al. "}, {"type": "b", "children": [{"type": "t", "text": "CD1a and CD1b surface expression is independent from de novo synthesized glycosphingolipids."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Eur J Immunol (2003)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1002/immu.200390004"}], "href": "https://doi.org/10.1002/immu.200390004"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "12594829"}], "href": "https://pubmed.ncbi.nlm.nih.gov/12594829"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "B Gozalbo-López, A Pérez-Rosado, J F Parra-Cuadrado, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Identification of a new mouse Cd1d2 allele."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Eur J Immunogenet (2004)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1111/j.1365-2370.2004.00431.x"}], "href": "https://doi.org/10.1111/j.1365-2370.2004.00431.x"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "15009173"}], "href": "https://pubmed.ncbi.nlm.nih.gov/15009173"}]}, {"type": "r", "ref": 4, "children": [{"type": "t", "text": "Sha Li, Hak-Jong Choi, Kyrie Felio, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Autoreactive CD1b-restricted T cells: a new innate-like T-cell population that contributes to immunity against infection."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Blood (2011)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1182/blood-2011-03-341941"}], "href": "https://doi.org/10.1182/blood-2011-03-341941"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "21860021"}], "href": "https://pubmed.ncbi.nlm.nih.gov/21860021"}]}, {"type": "r", "ref": 5, "children": [{"type": "t", "text": "Ludivine Amable, Luis Antonio Ferreira Martins, Remi Pierre, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Intrinsic factors and CD1d1 but not CD1d2 expression levels control invariant natural killer T cell subset differentiation."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Nat Commun (2023)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/s41467-023-43424-7"}], "href": "https://doi.org/10.1038/s41467-023-43424-7"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "38040679"}], "href": "https://pubmed.ncbi.nlm.nih.gov/38040679"}]}]}]}