{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nReduced expression of miR‑1296 is emerging as a key contributor to tumor progression in a broad range of human malignancies. For example, in triple‐negative breast cancer, miR‑1296 dysregulation is associated with aggressive tumor behavior ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "]. In gastric cancer, down‐regulation of miR‑1296‑5p has been linked to increased cell migration and invasion through failure to repress oncogenic pathways – one study showed that loss of miR‑1296‑5p led to enhanced ERBB2/Rac1 signaling ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "], while a separate investigation demonstrated that its low expression was concomitant with up‐regulation of CDK6 and EGFR, thereby promoting proliferation and invasiveness ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "]. In hepatocellular carcinoma, underexpression of miR‑1296 appears to contribute to tumor growth and metastasis ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": "]. Moreover, functional restoration of miR‑1296‑5p has been found to inhibit aggressive features in both osteosarcoma—through targeting NOTCH2 ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": "]—and glioma, where it suppresses ABL2 expression ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "6"}]}, {"type": "t", "text": "].\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn addition to its direct tumor‐suppressive roles, the activity of miR‑1296 is frequently modulated by circular RNAs that function as molecular sponges, thereby indirectly influencing key oncogenic pathways. In breast cancer, for instance, circ_0048764 sequesters miR‑1296‑5p to upregulate TRIM14 expression, which promotes cell proliferation, migration, and invasion ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "7"}]}, {"type": "t", "text": "]. Similarly, in hepatocellular carcinoma, hsa_circ_0000519 binds miR‑1296 resulting in enhanced E2F7 expression and accelerated tumor progression ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "8"}]}, {"type": "t", "text": "]. The influence of miR‑1296 is also evident in the tumor microenvironment; in gastric cancer, circSOD2 acts as a sponge to modulate the miR‑1296/STAT1 axis, thereby enhancing M1 macrophage polarization and improving cisplatin efficacy ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "9"}]}, {"type": "t", "text": "]. Moreover, circ_RPPH1 in breast cancer similarly promotes tumor growth by regulating the miR‑1296/TRIM14 signaling pathway ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "10"}]}, {"type": "t", "text": "].\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond oncologic settings, miR‑1296 holds promise as both a non‑invasive biomarker and a regulatory molecule in other pathologies. Circulating miR‑1296 is being evaluated for its diagnostic potential in nonalcoholic fatty liver disease ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "11"}]}, {"type": "t", "text": "]. In placenta accreta spectrum, miR‑1296‑5p has been shown to promote trophoblast proliferation and invasion through down‑regulation of AGGF1 and subsequent modulation of the P53 signaling pathway, thereby contributing to the pathogenesis of abnormal placentation ["}, {"type": "fg", "children": [{"type": "fg_f", "ref": "12"}]}, {"type": "t", "text": "].\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Binh Phan, Shahana Majid, Sarah Ursu, et al. 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