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Taheri M, Nicknam A, Bagan A, Eslami S, Rakhshan A, Ghafouri‐Fard S. Expression of cAMP and oxidative phosphorylation-related lncRNAs in non-functioning pituitary adenomas. J Cell Mol Med 2023; 27:4195-4201. [PMID: 37933082 PMCID: PMC10746940 DOI: 10.1111/jcmm.18011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/01/2023] [Accepted: 10/13/2023] [Indexed: 11/08/2023] Open
Abstract
Non-functioning pituitary adenomas (NFPAs) are benign lesions in the pituitary gland with important morbidities. In this study, based on a bioinformatics analysis to identify the genes and pathways that display significant differences between tumour tissues of NFPA patients and normal pituitary tissues, we selected lncRNAs related to cAMP and oxidative phosphorylation pathways, namely DNAH17-AS1, LINC00706 and SLC25A5-AS1. Then, we aimed to investigate by means of RT-qPCR, the expression of these lncRNAs along with two other lncRNAs, namely CADM3-AS1 and MIR7-3HG in NFPA samples compared to that in healthy tissues adjacent to the tumours. Transcripts of DNAH17-AS1, LINC00706 and MIR7-3HG were lower in NFPA samples compared with controls (Expression ratios (95% CI) = 0.43 (0.23-0.78), 0.58 (0.35-0.96) and 0.58 (0.35-0.96); p-values = 0.009, 0.025 and 0.036, respectively). AUC values of ROC curves of DNAH17-AS1, LINC00706 and MIR7-3HG were 0.62, 0.61 and 0.62, respectively. Expression of CADM3-AS1 was associated with the gender of patients in a way that it was lower in female patients (p-value = 0.04). The level of SLC25A5-AS1 was lower in subjects with disease duration lower than 1 year (p-value = 0.048). We showed dysregulation of three lncRNAs in NFPA tissues and potentiates these lncRNAs as important regulators of pathogenic events in these tumours.
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Affiliation(s)
- Mohammad Taheri
- Institute of Human GeneticsJena University HospitalJenaGermany
- Urology and Nephrology Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Amir Nicknam
- Phytochemistry Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Atena Bagan
- Phytochemistry Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Solat Eslami
- Department of Medical Biotechnology, School of MedicineAlborz University of Medical SciencesKarajIran
- Dietary Supplements and Probiotic Research CenterAlborz University of Medical SciencesKarajIran
| | - Azadeh Rakhshan
- Department of Pathology, Shohada‐e Tajrish HospitalShahid Beheshti University of Medical SciencesTehranIran
| | - Soudeh Ghafouri‐Fard
- Men's Health and Reproductive Health Research CenterShahid Beheshti University of Medical SciencesTehranIran
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2
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Chakraborty N, Holmes-Hampton GP, Gautam A, Kumar R, Hritzo B, Legesse B, Dimitrov G, Ghosh SP, Hammamieh R. Early to sustained impacts of lethal radiation on circulating miRNAs in a minipig model. Sci Rep 2023; 13:18496. [PMID: 37898651 PMCID: PMC10613244 DOI: 10.1038/s41598-023-45250-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/17/2023] [Indexed: 10/30/2023] Open
Abstract
Early diagnosis of lethal radiation is imperative since its intervention time windows are considerably short. Hence, ideal diagnostic candidates of radiation should be easily accessible, enable to inform about the stress history and objectively triage subjects in a time-efficient manner. Therefore, the small molecules such as metabolites and microRNAs (miRNAs) from plasma are legitimate biomarker candidate for lethal radiation. Our objectives were to comprehend the radiation-driven molecular pathogenesis and thereby determine biomarkers of translational potential. We investigated an established minipig model of LD70/45 total body irradiation (TBI). In this pilot study, plasma was collected pre-TBI and at multiple time points post-TBI. The majority of differentially expressed miRNAs and metabolites were perturbed immediately after TBI that potentially underlined the severity of its acute impact. The integrative network analysis of miRNA and metabolites showed a cohesive response; the early and consistent perturbations of networks were linked to cancer and the shift in musculoskeletal atrophy synchronized with the comorbidity-networks associated with inflammation and bioenergy synthesis. Subsequent comparative pipeline delivered 92 miRNAs, which demonstrated sequential homology between human and minipig, and potentially similar responses to lethal radiation across these two species. This panel promised to retrospectively inform the time since the radiation occurred; thereby could facilitate knowledge-driven interventions.
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Affiliation(s)
- Nabarun Chakraborty
- Medical Readiness Systems Biology, CMPN, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - Gregory P Holmes-Hampton
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, 20889, USA
| | - Aarti Gautam
- Medical Readiness Systems Biology, CMPN, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - Raina Kumar
- The Geneva Foundation, US Army Center for Environmental Health Research, Fort Detrick, MD, 21702-5010, USA
| | - Bernadette Hritzo
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, 20889, USA
| | - Betre Legesse
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, 20889, USA
| | - George Dimitrov
- Medical Readiness Systems Biology, CMPN, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
- The Geneva Foundation, US Army Center for Environmental Health Research, Fort Detrick, MD, 21702-5010, USA
| | - Sanchita P Ghosh
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, 20889, USA.
| | - Rasha Hammamieh
- Medical Readiness Systems Biology, CMPN, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
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Fan L, Li W, Jiang H. Circ_0000395 Promoted CRC Progression via Elevating MYH9 Expression by Sequestering miR-432-5p. Biochem Genet 2023; 61:116-137. [PMID: 35759156 DOI: 10.1007/s10528-022-10245-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 06/07/2022] [Indexed: 01/24/2023]
Abstract
Colorectal cancer (CRC) has been listed as the fourth deadly cancer. Circular RNA hsa_circRNA_001046, also termed as hsa_circ_0000395 (circ_0000395), has been shown to be upregulated in CRC. Nevertheless, the function of circ_0000395 in CRC progression is unclear. 42 CRC patients were enrolled in the study. Detection of circ_0000395 expression in tissues and cells was executed using real-time quantitative polymerase chain reaction (RT-qPCR). Evaluation of circ_0000395 function was performed using loss-of-function experiments in vitro and in vivo. The regulatory mechanism of circ_0000395 was predicted by bioinformatics analysis and validated by dual-luciferase reporter and RIP assays. Exosomes were isolated by ultracentrifugation and validated by western blotting, TEM, and NTA. Circ_0000395 was strongly expressed in CRC samples and cell lines. Also, circ_0000395 repressed CRC growth in mouse models in vivo and induced CRC cell apoptosis, restrained CRC cell proliferation, migration, invasion, and EMT in vitro. Mechanistically, circ_0000395 sequestered miR-432-5p to regulate MYH9 expression. Furthermore, miR-432-5p knockdown reversed circ_0000395 silencing-mediated effects on CRC cell malignant phenotypes. MYH9 overexpression counteracted the inhibiting effects of miR-432-5p upregulation on CRC cell malignant phenotypes. Additionally, CRC cells derived from exosomal circ_0000395 promoted cancer cell malignant phenotypes. Our findings demonstrated that circ_0000395 sequestered miR-432-5p to elevate MYH9 expression, resulting in facilitating CRC progression, manifesting a potential therapeutic target for CRC.
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Affiliation(s)
- Leilei Fan
- Department of Gastrointestinal Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No.158 Wuyang Avenue, Enshi City, Hubei Province, China
| | - Weiwei Li
- Department of Gastrointestinal Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No.158 Wuyang Avenue, Enshi City, Hubei Province, China
| | - Hongsheng Jiang
- Department of Gastrointestinal Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No.158 Wuyang Avenue, Enshi City, Hubei Province, China.
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Role and Dysregulation of miRNA in Patients with Parkinson's Disease. Int J Mol Sci 2022; 24:ijms24010712. [PMID: 36614153 PMCID: PMC9820759 DOI: 10.3390/ijms24010712] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative synucleinopathy that has a not yet fully understood molecular pathomechanism behind it. The role of risk genes regulated by small non-coding RNAs, or microRNAs (miRNAs), has also been highlighted in PD, where they may influence disease progression and comorbidities. In this case-control study, we analyzed miRNAs on peripheral blood mononuclear cells by means of RNA-seq in 30 participants, with the aim of identifying miRNAs differentially expressed in PD compared to age-matched healthy controls. Additionally, we investigated the pathways influenced by differentially expressed miRNAs and assessed whether a specific pathway could potentially be associated with PD susceptibility (enrichment analyses performed using the Ingenuity Pathway Analysis tools). Overall, considering that the upregulation of miRNAs might be related with the downregulation of their messenger RNA targets, and vice versa, we found several putative targets of dysregulated miRNAs (i.e., upregulated: hsa-miR-1275, hsa-miR-23a-5p, hsa-miR-432-5p, hsa-miR-4433b-3p, and hsa-miR-4443; downregulated: hsa-miR-142-5p, hsa-miR-143-3p, hsa-miR-374a-3p, hsa-miR-542-3p, and hsa-miR-99a-5p). An inverse connection between cancer and neurodegeneration, called "inverse comorbidity", has also been noted, showing that some genes or miRNAs may be expressed oppositely in neurodegenerative disorders and in some cancers. Therefore, it may be reasonable to consider these miRNAs as potential diagnostic markers and outcome measures.
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Liu J, Wang F, Zhang Y, Liu J, Zhao B. ADAR1-Mediated RNA Editing and Its Role in Cancer. Front Cell Dev Biol 2022; 10:956649. [PMID: 35898396 PMCID: PMC9309331 DOI: 10.3389/fcell.2022.956649] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
It is well known that the stability of RNA, the interaction between RNA and protein, and the correct translation of protein are significant forces that drive the transition from normal cell to malignant tumor. Adenosine deaminase acting on RNA 1 (ADAR1) is an RNA editing enzyme that catalyzes the deamination of adenosine to inosine (A-to-I), which is one dynamic modification that in a combinatorial manner can give rise to a very diverse transcriptome. ADAR1-mediated RNA editing is essential for survival in mammals and its dysregulation results in aberrant editing of its substrates that may affect the phenotypic changes in cancer. This overediting phenomenon occurs in many cancers, such as liver, lung, breast, and esophageal cancers, and promotes tumor progression in most cases. In addition to its editing role, ADAR1 can also play an editing-independent role, although current research on this mechanism is relatively shallowly explored in tumors. In this review, we summarize the nature of ADAR1, mechanisms of ADAR1 editing-dependent and editing-independent and implications for tumorigenesis and prognosis, and pay special attention to effects of ADAR1 on cancers by regulating non-coding RNA formation and function.
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Affiliation(s)
- Jizhe Liu
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Fei Wang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China
- Mengchao Med-X Center, Fuzhou University, Fuzhou, China
| | - Yindan Zhang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Jingfeng Liu
- Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
- *Correspondence: Jingfeng Liu, ; Bixing Zhao,
| | - Bixing Zhao
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China
- Mengchao Med-X Center, Fuzhou University, Fuzhou, China
- *Correspondence: Jingfeng Liu, ; Bixing Zhao,
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DRAIC promotes growth of breast cancer by sponging miR-432-5p to upregulate SLBP. Cancer Gene Ther 2022; 29:951-960. [PMID: 34645975 DOI: 10.1038/s41417-021-00388-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 04/30/2021] [Accepted: 09/09/2021] [Indexed: 11/08/2022]
Abstract
Mounting evidence suggests that lncRNAs can exert functions in cancer progression in multiple manners. In recent years, competing endogenous RNA (ceRNA) has been widely reported in human cancers as a lncRNA-dominant molecular pathway. The current study aimed at proving the role of lncRNA downregulated RNA in cancer (DRAIC) in breast cancer (BRCA) progression. To be specific, qRT-PCR assay was conducted to measure the expression of DRAIC and other downstream target genes. It was uncovered that DRAIC was expressed at a high level in BRCA cells. Functional analyses, including CCK-8, colony formation, and EdU assays demonstrated that DRAIC depletion suppressed BRCA cell proliferation. In addition, cell apoptosis was promoted due to DRAIC knockdown. The inhibitory effect of DRAIC reduction on BRCA cell migration and invasion was proven by transwell assays. Mechanistically, DRAIC was confirmed to predominantly distribute in the cytoplasm and could interact with miR-432-5p. In addition, stem-loop binding protein (SLBP) was verified to be a downstream target of miR-432-5p and was positively regulated by DRAIC. Taken together, DRAIC sponged miR-432-5p to enhance SLBP expression, by which malignant behaviors of BRCA cells were promoted. Our findings may help to provide a promising therapeutic target for BRCA patients.
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Gao J, Zhang LX, Ao YQ, Jin C, Zhang PF, Wang HK, Wang S, Lin M, Jiang JH, Ding JY. Elevated circASCC3 limits antitumor immunity by sponging miR-432–5p to upregulate C5a in non-small cell lung cancer. Cancer Lett 2022; 543:215774. [DOI: 10.1016/j.canlet.2022.215774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 05/20/2022] [Accepted: 05/31/2022] [Indexed: 11/02/2022]
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Qian X, Jiang C, Zhu Z, Han G, Xu N, Ye J, Wang R. Long non-coding RNA LINC00511 facilitates colon cancer development through regulating microRNA-625-5p to target WEE1. Cell Death Dis 2022; 8:233. [PMID: 35477702 PMCID: PMC9046421 DOI: 10.1038/s41420-021-00790-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 09/23/2021] [Accepted: 10/08/2021] [Indexed: 11/23/2022]
Abstract
The altered part of long non-coding RNA LINC00511 (LINC00511) is extensively discussed in malignancies. Finitely, the mechanism of LINC00511 in colon cancer (CC) development lacks thorough explorations. Hence, this work is started from the LINC00511-mediated microRNA (miR)-625-5p/WEE1 axis in the CC process. LINC00511, miR-625-5p, and WEE1 levels were tested in CC tissues and cells. Subcellular localization of LINC00511 was clarified. CC cells were transfected with oligonucleotides that altered LINC00511, and miR-625-5p expression to define their performance in CC cell progression. The tumorigenic ability of cells was verified in xenografted tumors. CC tissues and cells highly expressed LINC00511 and WEE1 and lowly expressed miR-625-5p. LINC00511 was mainly localized in the cytoplasm. Deleted LINC00511 or restored miR-625-5p delayed cellular growth in CC. LINC00511 sponged miR-625-5p to target WEE1. Silenced miR-625-5p mitigated the role of depleted LINC00511, while inhibited WEE1 rescued the effect of silenced miR-625-5p on the biological functions of CC cells. It is summarized that down-regulated LINC00511 obstructs tumorigenesis of CC through restoring miR-625-5p and silencing WEE1, consolidating a basal reference for CC-oriented therapy.
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Affiliation(s)
- Xiaowu Qian
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China.
| | - Chun Jiang
- Department of Cardiology, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Zhengtai Zhu
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Gaohua Han
- Department of Oncology, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Ning Xu
- Department of Gastrointestinal Surgery, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Jun Ye
- Department of Central Laboratory, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), Taizhou, 225300, Jiangsu, China
| | - Ruixing Wang
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
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Feng N, Jiao Z, Zhang Y, Yang B. Hsa_circ_0050102 regulates the pancreatic cancer development via miR‐218‐5p/PPME1 axis. J Clin Lab Anal 2022; 36:e24247. [PMID: 35060203 PMCID: PMC8906015 DOI: 10.1002/jcla.24247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/03/2021] [Accepted: 12/15/2021] [Indexed: 11/11/2022] Open
Abstract
Background Pancreatic cancer (PC) is a malignancy worldwide. Circular RNAs (circRNAs) affects the growth of PC, nonetheless the mechanism is blurry. Here, we reconnoitered the parts of hsa_circ_0050102 in PC. Methods Hsa_circ_0050102, microRNA‐218‐5p (miR‐218‐5p) and protein phosphatase methylesterase 1 (PPME1) abundances were indicated by quantitative RT‐PCR or Western blot. Moreover, the cell functions were uncovered. Additionally, the relation of miR‐218‐5p and hsa_circ_0050102 or PPME1 was identified by dual‐luciferase reporter assay. Ultimately, the mice teats were utilized to quantity the part of hsa_circ_0050102. Results Hsa_circ_0050102 and PPME1 contents were increased, and the miR‐218‐5p was dwindled in PC. Hsa_circ_0050102 lack subdued cell vitality, colony formation, cell migration and invasion, and angiogenesis, but endorsed cell apoptosis in PC cells. Furthermore, miR‐218‐5p was established to block the development of PC cells via PPME1. Hsa_circ_0050102 bound to miR‐218‐5p to adjust the content of PPME1. Conclusion Hsa_circ_0050102 expedited the expansion of PC through growing PPME1 abundance by adjusting miR‐218‐5p.
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Affiliation(s)
- Ningning Feng
- Department of Hepatobiliary Surgery Fourth Hospital of Hebei Medical University Shijiazhuang China
| | - Zhikai Jiao
- Department of Hepatobiliary Surgery Fourth Hospital of Hebei Medical University Shijiazhuang China
| | - Yueshan Zhang
- Department of Hepatobiliary Surgery Fourth Hospital of Hebei Medical University Shijiazhuang China
| | - Baoming Yang
- Department of Hepatobiliary Surgery Fourth Hospital of Hebei Medical University Shijiazhuang China
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Zhang M, Ma S, Li X, Yu H, Tan Y, He J, Wei X, Ma J. Long non‑coding RNA CTBP1‑AS2 upregulates USP22 to promote pancreatic carcinoma progression by sponging miR‑141‑3p. Mol Med Rep 2022; 25:86. [PMID: 35039872 PMCID: PMC8809116 DOI: 10.3892/mmr.2022.12602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 12/09/2021] [Indexed: 11/23/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) feature prominently in pancreatic carcinoma progression. The present study aimed to clarify the biological functions, clinical significance and underlying mechanism of lncRNA CTBP1 antisense RNA 2 (CTBP1-AS2) in pancreatic carcinoma. Reverse transcription-quantitative PCR was performed to assess the expression levels of CTBP1-AS2, microRNA (miR)-141-3p and ubiquitin-specific protease 22 (USP22) mRNA in pancreatic carcinoma tissues and cell lines. Western blotting was used to examine USP22 protein expression in pancreatic carcinoma cell lines. Loss-of-function experiments were used to analyze the regulatory effects of CTBP1-AS2 on proliferation, apoptosis, migration and invasion of pancreatic carcinoma cells. Dual-luciferase reporter assay was used to examine the binding relationship between CTBP1-AS2 and miR-141-3p, as well as between miR-141-3p and USP22. It was demonstrated that CTBP1-AS2 expression was markedly increased in pancreatic carcinoma tissues and cell lines. High CTBP1-AS2 expression was associated with advanced clinical stage and lymph node metastasis of patients. Functional experiments confirmed that knocking down CTBP1-AS2 significantly inhibited pancreatic carcinoma cell proliferation, migration and invasion, and promoted cell apoptosis. In terms of mechanism, it was found that CTBP1-AS2 adsorbed miR-141-3p as a molecular sponge to upregulate the expression level of USP22. In conclusion, lncRNA CTBP1-AS2 may be involved in pancreatic carcinoma progression by regulating miR-141-3p and USP22 expressions; in addition, CTBP1-AS2 may be a diagnostic biomarker and treatment target for pancreatic carcinoma.
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Affiliation(s)
- Mingliang Zhang
- Department of General Surgery, People's Hospital of Ningxia Hui Autonomous Region, Ningxia Hui Autonomous Region, Yinchuan 750021, P.R. China
| | - Songbo Ma
- Department of General Surgery, People's Hospital of Ningxia Hui Autonomous Region, Ningxia Hui Autonomous Region, Yinchuan 750021, P.R. China
| | - Xuzhao Li
- Department of General Surgery, People's Hospital of Ningxia Hui Autonomous Region, Ningxia Hui Autonomous Region, Yinchuan 750021, P.R. China
| | - Henghai Yu
- Department of General Surgery, People's Hospital of Ningxia Hui Autonomous Region, Ningxia Hui Autonomous Region, Yinchuan 750021, P.R. China
| | - Yizheng Tan
- Department of Hepatopancreatobiliary Surgery, The 2nd Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Jun He
- Department of Hepatopancreatobiliary Surgery, The 2nd Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Xiaoping Wei
- Department of General Surgery, People's Hospital of Ningxia Hui Autonomous Region, Ningxia Hui Autonomous Region, Yinchuan 750021, P.R. China
| | - Junming Ma
- Department of General Surgery, People's Hospital of Ningxia Hui Autonomous Region, Ningxia Hui Autonomous Region, Yinchuan 750021, P.R. China
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Fang X, Cai Y, Xu Y, Zhang H. Exosome-mediated lncRNA SNHG11 regulates angiogenesis in pancreatic carcinoma through miR-324-3p/VEGFA axis. Cell Biol Int 2022; 46:106-117. [PMID: 34519129 DOI: 10.1002/cbin.11703] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 08/27/2021] [Accepted: 09/12/2021] [Indexed: 12/25/2022]
Abstract
Pancreatic carcinoma (PC) is one of the most common and deadly human malignancies worldwide. LncRNAs play significant roles in the occurrence and development of various cancers. LncRNA SNHG11 (SNHG11) has been found to display high expression in serum of PC patients, which implies that dysregulated SNHG11 may be related to the development of PC. However, there is still a knowledge gap concerning the specific function and molecular mechanism of SNHG11 in PC. After conducting experiments with constructed models in vitro or in vivo, we found that exosomal SNHG11 promoted cell proliferation, migration, and angiogenesis but impeded cell apoptosis in PC in vitro, and additionally, it facilitated tumor growth in vivo. Exosome-mediated SNHG11 regulated the expression of VEGFA through sponging miR-324-3p. Rescue assays validated that the inhibitory effect of SNHG11 depletion on cell proliferation, migration, and angiogenesis could be reversed by miR-324-3p downregulation or VEGFA upregulation, and the promoting effect of SNHG11 silence on cell apoptosis could be rescued by transfection of miR-324-3p inhibitor or pcDNA3.1-VEGFA. To conclude, exosomal-mediated SNHG11 could regulate PC progression via miR-324-3p/VEGFA axis. Our findings may provide a novel insight for understanding PC, which might contribute to the development of potential PC biomarker.
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Affiliation(s)
- Xingbao Fang
- Department of Hepatopancreatobiliary Surgery, The First People's Hospital of Qujing, Qujing, Yunnan, China
| | - Yan Cai
- Department of Pathophysiology, Qujing Medical College, Qujing, Yunnan, China
| | - Yongping Xu
- Department of Hepatopancreatobiliary Surgery, The First People's Hospital of Qujing, Qujing, Yunnan, China
| | - Hong Zhang
- Department of Hepatopancreatobiliary Surgery, The First People's Hospital of Qujing, Qujing, Yunnan, China
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Yun Z, Yue M, Kang Z, Zhang P. Reduced expression of microRNA-432-5p by DNA methyltransferase 3B leads to development of colorectal cancer through upregulation of CCND2. Exp Cell Res 2022; 410:112936. [PMID: 34801563 DOI: 10.1016/j.yexcr.2021.112936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND The tumor suppressive function of microRNA-432-5p (miR-432-5p) has been reported in several human malignances. This study aimed to probe the expression profile and role of miR-432-5p in colorectal cancer (CRC) and the molecular mechanism. METHODS Differentially expressed miRNAs between CRC and healthy samples were screened using a miRNA expression dataset GSE136020. The related molecules were identified by integrated bioinformatic analyses. A murine model of primary CRC was established and xenograft tumors were induced in mice. Altered expression of DNMT3B, miR-432-5p and cyclin D2 (CCND2) were introduced in CRC cells to determine their roles in the development of CRC. RESULTS miR-432-5p was downregulated in CRC according to the GSE136020 dataset. CCND2 mRNA was confirmed as a target of miR-432-5p. miR-432-5p was downregulated, whereas CCND2 was abundantly expressed in CRC tissues and cells. DNA methyltransferase 3B (DNMT3B) induced DNA methylation at the CpG island of miR-432-5p to inhibit its expression. miR-432-5p mimic significantly suppressed tumorigenesis of primary CRC in mice. Downregulation of DNMT3B weakened viability, invasiveness, blocked the cell cycle progression of CRC cells in vitro, and inhibited xenograft tumor growth and metastasis in nude mice. However, additional downregulation of miR-432-5p or upregulation of CCND2 restored the malignant behaviors of CRC cells. CONCLUSION This study showed that DNMT3B induced DNA methylation and downregulation of miR-432-5p to promote development of CRC by upregulating CCND2.
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Affiliation(s)
- Zhennan Yun
- Department of Colorectal & Anal Surgery, The First Hospital of Jilin University, Changchun, 130021, Jilin, PR China
| | - Meng Yue
- Department of Colorectal & Anal Surgery, The First Hospital of Jilin University, Changchun, 130021, Jilin, PR China
| | - Zhenhua Kang
- Department of Colorectal & Anal Surgery, The First Hospital of Jilin University, Changchun, 130021, Jilin, PR China
| | - Ping Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, 130021, Jilin, PR China.
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13
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Xu J, Xu W, Xuan Y, Liu Z, Sun Q, Lan C. Pancreatic Cancer Progression Is Regulated by IPO7/p53/LncRNA MALAT1/MiR-129-5p Positive Feedback Loop. Front Cell Dev Biol 2021; 9:630262. [PMID: 34660566 PMCID: PMC8517143 DOI: 10.3389/fcell.2021.630262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 08/23/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Pancreatic cancer is a malignancy with poor prognosis. Importin 7 (IPO7) is a soluble nuclear transport factor, which has been linked to the pathogenesis of several human diseases. However, its role and underlying mechanism in pancreatic cancer are still obscure. Methods: Immunohistochemical staining and quantitative real-time polymerase chain reaction (qPCR) were performed to determine IPO7 expression in pancreatic cancer tissues and adjacent tissues. Western blot was used to measure IPO7 expression at the protein level in cell lines. Cell Counting Kit-8 (CCK-8), 5-bromo-2'-deoxyuridine (BrdU), flow cytometry, and Transwell assays were employed to explore the biological functions of IPO7. Subcutaneous xenograft transplanted tumor model and caudal vein injection model in mice were also established to validate the oncogenic role of IPO7. Western blot and qPCR were utilized to detect the regulatory function of IPO7 on p53 and metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), respectively. Interaction between MALAT1 and miR-129-5p and interaction between miR-129-5p and IPO7 were verified by bioinformatics prediction, qPCR, dual-luciferase reporter gene experiment, RNA immunoprecipitation (RIP), and pull-down assay. Results: Upregulation of IPO7 in pancreatic cancer tissues was associated with adverse prognosis of the patients with pancreatic cancer. Knocking down IPO7 remarkably suppressed cancer cell proliferation and metastasis, while it promoted apoptosis. Overexpression of IPO7 facilitated the malignant phenotypes of pancreatic cancer cells. Mechanistically, IPO7 could repress the expression of p53 and induce the expression of MALAT1 but reduce miR-129-5p expression. Furthermore, miR-129-5p was identified as a posttranscriptional regulator for IPO7, and its inhibition led to IPO7 overexpression in pancreatic cancer cells. Conclusion: IPO7 is a novel oncogene for pancreatic cancer, and IPO7/p53/MALAT1/miR-129-5p positive feedback loop facilitates the progression of this deadly disease.
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Affiliation(s)
- Jin Xu
- Department of Pancreatic and Thyroid Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Weixue Xu
- Department of Pancreatic and Thyroid Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Yang Xuan
- Department of Pancreatic and Thyroid Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Zhen Liu
- Department of Pancreatic and Thyroid Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Qinyun Sun
- Department of Pancreatic and Thyroid Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Cheng Lan
- Department of Gastroenterology, Affiliated Hainan Hospital, Hainan Medical University, Hainan General Hospital, Hainan, China
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14
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Tanshinone I restrains osteosarcoma progression by regulating circ_0000376/miR-432-5p/BCL2 axis. Mol Cell Biochem 2021; 477:1-13. [PMID: 34532813 DOI: 10.1007/s11010-021-04257-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/31/2021] [Indexed: 01/02/2023]
Abstract
Circular RNAs (circRNAs) have been identified as important regulators in cancer progression. Nevertheless, little is known about the biological function of circ_0000376 in the progression of osteosarcoma (OS). Cell viability, colony formation ability, apoptosis, and motility were analyzed by Cell Counting Kit-8 assay, colony formation assay, flow cytometry, and transwell assays. Cellular glycolytic metabolism was analyzed using commercial kits. RT-qPCR and Western blot assay were performed to analyze RNA and protein expression in OS tissues and cells. Starbase software was used to establish circRNA-microRNA (miRNA)-messenger RNA linkage, and intermolecular interaction was verified by dual-luciferase reporter assay. Xenograft tumor assay was conducted to analyze the effects of Tanshinone I (Tan I) and circ_0000376 on xenograft tumor growth in vivo. Tan I treatment suppressed the viability, migration, invasion, and glycolysis and triggered the apoptosis of OS cells. Tan I treatment markedly down-regulated circ_0000376 expression in OS cells. The addition of circ_0000376 plasmid largely rescued the malignant behaviors of OS cells upon Tan I exposure. Circ_0000376 interacted with miR-432-5p in OS cells. Circ_0000376 overexpression-mediated protective effects in Tan I-induced OS cells were partly attenuated by the accumulation of miR-432-5p. miR-432-5p bound to the 3' untranslated region (3'UTR) of B-cell leukemia/lymphoma 2 (BCL2) in OS cells. miR-432-5p interference-induced effects in Tan I-treated OS cells were partly overturned by the silence of BCL2. Circ_0000376 can act as miR-432-5p sponge to up-regulate BCL2 expression in OS cells. Circ_0000376 silencing contributed to the anti-tumor effect of Tan I on the growth of xenograft tumors in vivo. Tan I exerted an anti-tumor role in OS progression by targeting circ_0000376/miR-432-5p/BCL2 axis.
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15
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Wang G, Yang H. CircRNA DUSP16 Knockdown Suppresses Colorectal Cancer Progression by Regulating the miR-432-5p/E2F6 Axis. Cancer Manag Res 2021; 13:6599-6609. [PMID: 34456589 PMCID: PMC8387644 DOI: 10.2147/cmar.s323437] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/04/2021] [Indexed: 12/13/2022] Open
Abstract
Background Circular RNAs (circRNAs) play critical roles in various types of cancer. The aim of the present study was to investigate the function and underlying mechanism of CircRNA DUSP16 (circDUSP16) in colorectal cancer (CRC) development. Materials and Methods The expression levels of circDUSP16, microRNA-432-5p (miR-432-5p), and E2F transcription factor 6 (E2F6) were measured by RT-qPCR. Cell proliferation, migration, invasion, and apoptosis were investigated by CCK-8, Transwell, and flow cytometry assays. Western blot analysis was used to evaluate the levels of the pro-apoptotic protein (Bax and cleaved-caspase 3) and the anti-apoptotic protein (Bcl-2). Luciferase reporter assay and RIP assay were used to analyze the association between miR-432-5p and circDUSP16 or E2F6. A xenograft tumor model was employed to explore the effect of circDUSP16 on CRC tumor growth in vivo. Results CircDUSP16 expression was upregulated in CRC tissues and cell lines. High circDUSP16 expression was correlated with low survival rate. Furthermore, circDUSP16 knockdown repressed cell proliferation, migration, and invasion and induced apoptosis in CRC. CircDUSP16 caused a negative regulation in miR-432-5p expression. In addition, E2F6 expression was elevated in CRC tissues. Inhibition of miR-432-5p promoted the proliferative and metastatic activity of CRC cells and inhibited the induction of apoptosis. Inhibition of E2F6 expression partially abolished the effects caused by miR-432-5p depletion. Moreover, circDUSP16 upregulated E2F6 expression by reducing miR-432-5p expression. Furthermore, circDUSP16 silencing repressed CRC tumor growth in vivo. Conclusion The results supported the hypothesis that circDUSP16 knockdown suppressed CRC progression by regulating the miR-432-5p/E2F6 axis, suggesting that the circDUSP16/miR-432-5p/E2F6 network may be a potential therapeutic target for CRC.
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Affiliation(s)
- Guangyao Wang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, People's Republic of China
| | - Haojun Yang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213000, People's Republic of China
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16
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Shen P, Yang T, Chen Q, Yuan H, Wu P, Cai B, Meng L, Huang X, Liu J, Zhang Y, Hu W, Miao Y, Lu Z, Jiang K. CircNEIL3 regulatory loop promotes pancreatic ductal adenocarcinoma progression via miRNA sponging and A-to-I RNA-editing. Mol Cancer 2021; 20:51. [PMID: 33750389 PMCID: PMC7941935 DOI: 10.1186/s12943-021-01333-7] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/09/2021] [Indexed: 12/25/2022] Open
Abstract
Background A growing number of studies have focused on investigating circRNAs as crucial regulators in the progression of multiple cancer types. Nevertheless, the biological effects and underlying mechanisms of circRNAs in pancreatic ductal adenocarcinoma (PDAC) remain unclear. Methods Differentially expressed circRNAs between cancerous tissue and adjacent normal tissues were identified by RNA sequencing in PDAC. Subsequently, in vitro and in vivo functional experiments were performed to investigate the functional roles of circNEIL3 in PDAC tumour growth and metastasis. Furthermore, RNA pull-down, dual-luciferase reporter assays, RNA immunoprecipitation (RIP) assays, fluorescent in situ hybridization (FISH) and Sanger sequencing assays were performed to examine the circular interaction among circNEIL3, miR-432-5p and adenosine deaminases acting on RNA 1 (ADAR1). Results CircNEIL3 was upregulated in PDAC and promoted the progression of PDAC cells both in vitro and in vivo. Mechanistically, circNEIL3 was shown to regulate the expression of ADAR1 by sponging miR-432-5p to induce RNA editing of glioma-associated oncogene 1 (GLI1), ultimately influencing cell cycle progression and promoting epithelial-to-mesenchymal transition (EMT) in PDAC cells. Moreover, we discovered that the circNEIL3/miR-432-5p/ADAR1 axis was correlated with the PDAC clinical stage and overall survival of PDAC patients, while ADAR1 may reduce the biogenesis of circNEIL3. Conclusions Our findings reveal that circNEIL3 facilitates the proliferation and metastasis of PDAC through the circNEIL3/miR-432-5p/ADAR1/GLI1/cell cycle and EMT axis and that its expression is regulated by ADAR1 through a negative feedback loop. Therefore, circNEIL3 may serve as a prognostic marker and a therapeutic target for PDAC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01333-7.
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Affiliation(s)
- Peng Shen
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Taoyue Yang
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Qun Chen
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Hao Yuan
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Pengfei Wu
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Baobao Cai
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Lingdong Meng
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Xumin Huang
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Jiaye Liu
- Nanjing Medical University, Nanjing, China
| | - Yihan Zhang
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Weikang Hu
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Yi Miao
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Nanjing Medical University, Nanjing, China
| | - Zipeng Lu
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China. .,Pancreas Institute, Nanjing Medical University, Nanjing, China. .,Nanjing Medical University, Nanjing, China.
| | - Kuirong Jiang
- Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China. .,Pancreas Institute, Nanjing Medical University, Nanjing, China. .,Nanjing Medical University, Nanjing, China.
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17
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Du W, Lei C, Wang Y, Ding Y, Tian P. LINC01232 Sponges Multiple miRNAs and Its Clinical Significance in Pancreatic Adenocarcinoma Diagnosis and Prognosis. Technol Cancer Res Treat 2021; 20:1533033820988525. [PMID: 33506742 PMCID: PMC7871353 DOI: 10.1177/1533033820988525] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background: Long noncoding RNAs have been demonstrated to play important roles in
different kinds of human malignancy. The purpose of this study was to
evaluate the diagnostic and prognostic value of long intergenic non-protein
coding RNA 1232 (LINC01232) in patients with pancreatic adenocarcinoma
(PAAD) and further explore the clinical significance of the potential miRNAs
that might be sponged by LINC01232. Methods: The potential target miRNAs that might be sponged by LINC01232 were analyzed
using bioinformatics analysis. The Real-Time quantitative PCR was adopted to
measure the relative expression of LINC01232 and target miRNAs in PAAD serum
and tissue samples. The diagnostic and prognostic value of LINC01232 was
evaluated using the receiver operating characteristic analysis and
Kaplan-Meier survival analysis, respectively. Results: LINC01232 expression was upregulated in PAAD serum and tissues and associated
with patients’ TNM stage. Serum LINC01232 expression had diagnostic value,
and the high levels of LINC01232 could predict unfavorable prognosis in PAAD
patients. miR-204-5p, miR-370-5p and miR-654-3p were proposed as 3 targets
of LINC01232 in PAAD, and their decreased expression levels in PAAD patients
showed certain clinical significance in diagnosis and prognosis. Conclusion: The data of this study revealed that LINC01232 expression is upregulated in
PAAD serum and tissue samples with considerable diagnostic and prognostic
significance. In addition, miR-204-5p, miR-370-5p and miR-654-3p may be
sponged by LINC01232 in PAAD, which also show potencies in PAAD diagnosis
and prognosis.
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Affiliation(s)
- Wenyan Du
- Department of Science and Education, 117906Zibo Central Hospital, Zibo, Shandong, China
| | - Chengbin Lei
- Department of Clinical Laboratory, 42259Zibo Central Hospital, Zibo, Shandong, China
| | - Yanzhen Wang
- Department of Ultrasonic, 42259Zibo Central Hospital, Zibo, Shandong, China
| | - Yiwen Ding
- Department of Ultrasonic, 42259Zibo Central Hospital, Zibo, Shandong, China
| | - Peng Tian
- Department of Ultrasonic, 42259Zibo Central Hospital, Zibo, Shandong, China
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18
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Jin S, Liu Y, Wang W, Li Z. Long Non-Coding RNA C1QTNF1 Antisense RNA 1 Upregulates Hexokinase 2 by Sponging microRNA-484 to Promote the Malignancy of Colorectal Cancer. Cancer Manag Res 2020; 12:12053-12066. [PMID: 33262654 PMCID: PMC7700093 DOI: 10.2147/cmar.s262096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/03/2020] [Indexed: 12/24/2022] Open
Abstract
Purpose The long noncoding RNA C1QTNF1 antisense RNA 1 (C1QTNF1-AS1) contributes to hepatocellular carcinoma development. However, its expression and roles in colorectal cancer (CRC) have not been fully explored. Therefore, this study determined the expression and roles of C1QTNF1-AS1 in CRC and elucidated its detailed mechanism of action. Methods C1QTNF1-AS1 expression in CRC tissues and cell lines was assessed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). We used Cell Counting Kit-8, flow cytometry, cell migration and invasion assays, and a xenograft tumor model to test the effects of C1QTNF1-AS1 on CRC malignancy. The associations among C1QTNF1-AS1, microRNA-484 (miR-484), and hexokinase 2 (HK2) were explored using luciferase reporter assay, RNA immunoprecipitation, RT–qPCR, and Western blotting. Results C1QTNF1-AS1 was overexpressed in CRC and related to poor prognosis. C1QTNF1-AS1 interference inhibited CRC cell proliferation, migration, and invasion but induced apoptosis. Furthermore, C1QTNF1-AS1 deficiency impaired tumor growth in vivo. Mechanistically, C1QTNF1-AS1 adsorbed miR-484, thereby increasing the expression of its target HK2. Rescue experiments revealed that the effects of C1QTNF1-AS1 deficiency in CRC cells were reversed by inhibiting miR-484 or upregulating HK2. Conclusion C1QTNF1-AS1 drives CRC progression by sponging miR-484 and consequently upregulating HK2. The C1QTNF1-AS1/miR-484/HK2 pathway may serve as a diagnostic and therapeutic target for CRC.
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Affiliation(s)
- Shifeng Jin
- Department of Anorectal, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin 133021, People's Republic of China
| | - Yi Liu
- Department of Anorectal, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin 133021, People's Republic of China
| | - Wenjing Wang
- Department of Anorectal, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin 133021, People's Republic of China
| | - Ze Li
- Department of Colorectal and Stomach Cancer Surgery-1, Jilin Cancer Hospital, Changchun, Jilin 130000, People's Republic of China
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19
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Du LJ, Mao LJ, Jing RJ. Long noncoding RNA DNAH17-AS1 promotes tumorigenesis and metastasis of non-small cell lung cancer via regulating miR-877-5p/CCNA2 pathway. Biochem Biophys Res Commun 2020; 533:565-572. [PMID: 32981678 DOI: 10.1016/j.bbrc.2020.09.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 09/12/2020] [Indexed: 02/07/2023]
Abstract
A growing number of studies have revealed that long noncoding RNAs (lncRNAs) can function as important oncogenes or tumor suppressors. This study aimed to investigate the regulatory role of lncRNA DNAH17 antisense RNA 1 (DNAH17-AS1) on non-small cell lung cancer (NSCLC) and the underlying molecular mechanisms. We observed that the expression of DNAH17-AS1 and CCNA2 mRNA was distinctly upregulated in NSCLC specimens and cell lines, while miR-877-5p expression was significantly decreased. DNAH17-AS1 could be used to distinguish NSCLC specimens from adjacent non-tumor tissues. Clinical assays revealed that high DNAH17-AS1 was associated with TNM stage, distant metastasis and shorter overall survival and disease-free survival. Functional assays indicated that knockdown of DNAH17-AS1 suppressed the proliferation, migration and invasion of H1299 and 95D cells, and promoted apoptosis. Mechanically, DNAH17-AS1 served as competing endogenous RNA (ceRNA) for miR-877-5p to positively recover CCNA2. Overall, we identified a novel NSCLC-related lncRNA, DNAH17-AS1 which may exert an oncogenic function via serving as a sponge for miR-877-5p to upregulate CCNA2. Our study presents novel insights into NSCLC progression and provided a prospective therapeutic target for NSCLC.
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Affiliation(s)
- Li-Juan Du
- Department of Respiratory, The Affiliated TCM Hospital of Xinjiang Medical University, Urumchi, Xinjiang, China
| | - Long-Jun Mao
- Department of Cardio-cerebrovascular Diseases, The Baoji Center Hospital, Baoji, Shaanxi, China
| | - Rui-Jun Jing
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China.
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