{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nA survey of the provided literature reveals an extensive focus on the immuno‐regulatory activities of nuclear IκB proteins—most notably IκB‑ζ (also known as MAIL and encoded by NFKBIZ)—which are induced in response to toll‑like receptor and interleukin‑1 receptor engagement. These studies demonstrate that IκB‑ζ functions as a selective transcriptional coactivator (or repressor) for a subset of NF‑κB–dependent genes. In various cell types including macrophages, T cells, B cells, and keratinocytes, IκB‑ζ regulates the expression of key cytokines (such as IL‑6, IL‑12, IL‑17, IL‑10) and other mediators that govern immune cell differentiation, inflammatory responses, and even chromatin remodeling events associated with tissue remodeling and tumor microenvironment development."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "9"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nNotably, however, none of these abstracts address RCBTB2. While one study"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "10"}]}, {"type": "t", "text": "focuses on a molecule termed CHC1‑L—which is downregulated in prostate tumors and may act as a tumor suppressor—it does not provide evidence that this gene product is equivalent to RCBTB2. In fact, the overall body of literature provided here is entirely dedicated to dissecting the functions of nuclear IκB regulators and their impact on inflammatory gene expression, tissue homeostasis, and immune responses in diverse disease settings. Consequently, based on the supplied abstracts no functional role for RCBTB2 can be determined, and its involvement in cellular regulation or disease pathogenesis remains to be elucidated."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "11"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Monika Bambouskova, Laurent Gorvel, Vicky Lampropoulou, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Electrophilic properties of itaconate and derivatives regulate the IκBζ-ATF3 inflammatory axis."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Nature (2018)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/s41586-018-0052-z"}], "href": "https://doi.org/10.1038/s41586-018-0052-z"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "29670287"}], "href": "https://pubmed.ncbi.nlm.nih.gov/29670287"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Masahiro Yamamoto, Soh Yamazaki, Satoshi Uematsu, et al. 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