{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n Although the provided abstracts do not mention “LINC00901” explicitly, they describe a group of long non‐coding RNAs (lncRNAs) that serve as paradigmatic examples of tumor suppressors and key regulators of cancer biology. In several studies, decreased expression or genomic deletion of lncRNAs – for example, LOC285194 and BC040587 – has been linked to increased tumor size, advanced stage, metastasis, and poorer patient survival in cancers such as colorectal cancer and osteosarcoma."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "3"}]}, {"type": "t", "text": " Functional re‐expression of these lncRNAs in tumor cells was found to reduce proliferation rates and delay tumor growth, suggesting that lncRNAs in this family act as brakes on unchecked cell division and oncogenic progression."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n \n "}, {"type": "p", "children": [{"type": "t", "text": "\n The studies further emphasize that lncRNAs can participate in crucial signaling networks, such as the p53 and Rb pathways, and may influence cell cycle regulation, apoptosis, and differentiation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "6"}]}, {"type": "t", "text": " In addition, genomic analyses have revealed that focal copy‐number alterations and loss of heterozygosity in regions harboring these lncRNAs are common in multiple tumor types, underscoring their functional importance and potential as prognostic markers or even therapeutic targets."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "8", "end_ref": "10"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n \n "}, {"type": "p", "children": [{"type": "t", "text": "\n Moreover, the broader analysis of non‐coding transcripts in cancers—including those in breast and ovarian tumors—suggests that lncRNAs may serve as accessible molecular markers, with some being detectable in bodily fluids and offering promise for non–invasive diagnostics."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "11", "end_ref": "15"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n \n "}, {"type": "p", "children": [{"type": "t", "text": "\n In summary, while “LINC00901” is not individually discussed, the collective evidence from these studies indicates that lncRNAs of this nature function as tumor suppressors by modulating critical cellular processes—including cell cycle progression, apoptosis, and differentiation—and by integrating into major oncogenic or tumor‐suppressive pathways. Their recurrent genomic alterations and strong correlations with clinical outcome highlight their potential utility as novel biomarkers and therapeutic targets in several human malignancies.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Peng Qi, Mi-die Xu, Shu-juan Ni, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Low expression of LOC285194 is associated with poor prognosis in colorectal cancer."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Transl Med (2013)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1186/1479-5876-11-122"}], "href": "https://doi.org/10.1186/1479-5876-11-122"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "23680400"}], "href": "https://pubmed.ncbi.nlm.nih.gov/23680400"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Yayun Chi, Sheng Huang, Lin Yuan, et al. 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