{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n Long intergenic non‐coding RNA 00475 (LINC00475) has emerged as an oncogenic regulator in multiple cancer types. In glioma, for example, one study demonstrated that under hypoxic conditions LINC00475 is overexpressed and promotes tumor progression by binding and down‐regulating miR‑449b‑5p. This interaction leads to increased expression of AGAP2, enhanced focal adhesion kinase (FAK) phosphorylation, and up‐regulation of HIF‑1α, collectively driving cell proliferation, migration, invasion, and reduced apoptosis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n In papillary thyroid carcinoma, LINC00475 is similarly upregulated and predominantly localized in the cytoplasm, where it functions as a molecular sponge for miR‑376c‑3p. This sequestration results in the derepression of the oncogene ZCCHC12, thereby enhancing cell viability, proliferation, migration, and invasion."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Additional evidence in glioma shows that LINC00475 can interact with miR‑141‑3p to modulate the expression of YAP1, further contributing to tumor progression and serving as a marker of poor prognosis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Moreover, large‐scale genomic analyses in clear cell renal cell carcinoma have identified LINC00475 as one of several upregulated long non‐coding RNAs whose expression correlates with overall survival, suggesting its potential utility as a prognostic biomarker."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": " In gastric cancer, metabolic pathway–related profiling also revealed LINC00475 to be significantly upregulated, further associating it with tumorigenesis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Collectively, these findings suggest that LINC00475 exerts its oncogenic effects by acting as a competing endogenous RNA (ceRNA) that sequesters tumor‐suppressive microRNAs, thereby elevating the expression of downstream targets involved in key signaling pathways. This multi‐faceted role in promoting cell proliferation, migration, and invasion highlights LINC00475 as a promising candidate for targeted therapeutic intervention and biomarker development across several malignancies.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Lei Yu, Si Gui, Yawei Liu, et al. 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