{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nThe study detailed in the abstract"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "focused on elucidating the regulation and function of granzyme D in murine mast cells. The investigators demonstrated that granzyme D expression increases with mast cell maturation and is potently induced in response to Gram‐positive bacteria through a Toll‐like receptor 2–dependent pathway. In addition, granzyme D is upregulated by several activating signals—including bacterial cell wall components, stem cell factor, IgE receptor cross‐linking, and calcium ionophore stimulation—via signaling cascades that require protein kinase C and nuclear factor of activated T cells (NFAT), suggesting that granzyme D plays a role in mast cell–mediated defense and allergic responses.\n \nIn contrast, no functional role for TCF7L1-IT1 is described in this abstract. The study does not mention TCF7L1-IT1, and therefore its potential biological functions, regulatory mechanisms, or involvement in mast cell activation and immune responses remain undetermined based on the present findings."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Elin Rönnberg, Gabriela Calounova, Bengt Guss, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Granzyme D is a novel murine mast cell protease that is highly induced by multiple pathways of mast cell activation."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Infect Immun (2013)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1128/IAI.00290-13"}], "href": "https://doi.org/10.1128/IAI.00290-13"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "23529614"}], "href": "https://pubmed.ncbi.nlm.nih.gov/23529614"}]}]}]}