Abstract
Acute myeloid leukemia (AML) is a form of blood cancer that arise as a result of clonal proliferation of malignant myeloid precursors acquiring genetic abnormalities. Primary resistance to initial treatment and disease recurrence continues to be huge challenge in treating AML. Herein, GSE114868 was analyzed for differentially-expressed lncRNAs between AML patients’ mononucleated cells and healthy normal control mononucleated cells and 191 lncRNAs were significantly deregulated in AML patients’ mononucleated cells. The correlation between candidate lncRNAs and AML patients’ overall survival was analyzed and 6 lncRNAs, including MIR181A1HG, TRAF3IP2-AS1, STARD4-AS1, E2F3-IT1, FAM215A, and HHIP-AS1 were dramatically linked to AML patients’ OS. Using a Cox proportional-hazards model, we identified risk factors and found FAM215A as a risk factor for AML patients’ prognosis. The expression level of FAM215A showed to be upregulated within blood samples and cells. Genes correlated with FAM215A were correlated to cell division, modulation of cell apoptosis, and modulation of programmed cell death. FAM215A knockdown inhibited AML cell viability, elicited G0/G1-phase arrest of cell cycle, enhanced cell apoptosis, increased proapoptotic Bax and cleaved-caspase3 levels, and decreased antiapoptotic Bcl2. FAM215A overexpression exerted opposite effects on AML cells. Conclusively, FAM215A serves as an oncogenic lncRNA in AML, promoting cell viability, relieving cell cycle arrest, and suppressing cell apoptosis. FAM215A might be un underlying biological prognostic marker and therapeutic target for AML.
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LL made substantial contribution to the conception and design of the work; LX analyzed and interpreted the data; XY drafted the manuscript; ZZ revised the work critically for important content; Final approval of the work: all authors.
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Li, L., Xin, L., Yang, X. et al. Oncogenic lncRNA FAM215A promotes the malignant cell phenotypes of acute myeloid leukemia (AML) cell lines. J Mol Histol 55, 97–108 (2024). https://doi.org/10.1007/s10735-023-10174-1
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DOI: https://doi.org/10.1007/s10735-023-10174-1