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Deficiency of circ_0103809 Attenuates Non-small Cell Lung Cancer Malignant Progression by Controlling miR-153-3p/HDAC1 Network

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Abstract

Circular RNAs are vital players in tumorigenesis. We held the purpose to investigate the role and mechanism of circ_0103809 in non-small cell lung cancer (NSCLC). The expressions of circ_0103809, miR-153-3p and HDAC1 mRNA were determined using quantitative real-time PCR assay, and HDAC1 protein was quantified using western blot analysis. MTT, EdU, flow cytometry, tube-formation, wound healing and tube-formation assays were conducted for functional analysis. The predicted relationship among circ_0103809, miR-153-3p and HDAC1 was ascertained using dual-luciferase analysis, RIP assay and pull-down analysis. Animal models were further constructed to realize circ_0103809’s role in vivo. Circ_0103809 was upregulated NSCLC specimens, cells and serum-derived exosomes. Serum exosomal circ_0103809 had the potency to be a diagnostic biomarker for NSCLC. Circ_0103809 silencing inhibited NSCLC cell growth, metastasis and angiogenesis and triggered cell cycle arrest and apoptosis. Circ_0103809 deficiency also suppressed the growth of transplanted tumors. Circ_0103809 acted as the miR-153-3p sponge, and the biological effects of circ_0103809 knockdown were relieved by miR-153-3p inhibition. HDAC1 was directly targeted by miR-153-3p, and miR-153-3p enrichment inhibited NSCLC cell malignant phenotypes by sequestering HDAC1. Circ_0103809 knockdown repressed NSCLC malignant progression partly by regulating miR-153-3p/HDAC1 signaling.

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XY designed and performed the research; XC, YS, QS, XC analyzed the data; XY wrote the manuscript. All authors read and approved the final manuscript.

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Correspondence to Xiaodong Chen.

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Written informed consents were obtained from all participants and this study was permitted by the Ethics Committee of Shanxi Province Cancer Hospital/ Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University.

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10528_2023_10470_MOESM1_ESM.tif

Supplementary Figure 1.Knockdown of circ_0103809 strengthened NSCLC cell apoptosis and reduced cell migration. A549 and H1299 cells were transfected with si-NC, si-circ_0103809#1 or si-circ_0103809#2. (A) Western blot assay was used to detect CDK2, Bcl-2, Bad, and c-PARP protein levels. (B) The protein levels of E-cadherin and Vimentin were measured by western blot assay. (C) Transwel assay was performed to examine cell migration. ***P<0.001 (TIF 2254.7 kb)

10528_2023_10470_MOESM2_ESM.tif

Supplementary Figure 2.Circ_0103809 knockdown suppressed NSCLC cell migration, invasion and angiogenesis by sponging miR-153-3p. (A-C) The images of migration, invasion and tube formation were presented in A549 and H1299 cells transfected with si-NC, si-circ_0103809#1, si-circ_0103809#1 + anti-miR-NC, or si-circ_0103809#1 + anti-miR-153-3p (TIF 7295.7 kb)

10528_2023_10470_MOESM3_ESM.tif

Supplementary Figure 3.MiR-153-3p overexpression inhibited NSCLC cell migration, invasion and angiogenesis by targeting HDAC1. (A-C) The images of migration, invasion and tube formation were dispalyed in A549 and H1299 cells transfected with miR-NC, miR-153-3p, miR-153-3p + pcDNA3.1, or miR-153-3p + HDAC1 (TIF 6461.6 kb)

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Yang, X., Chai, X., Song, Y. et al. Deficiency of circ_0103809 Attenuates Non-small Cell Lung Cancer Malignant Progression by Controlling miR-153-3p/HDAC1 Network. Biochem Genet 62, 1160–1181 (2024). https://doi.org/10.1007/s10528-023-10470-1

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  • DOI: https://doi.org/10.1007/s10528-023-10470-1

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