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Li M, Pang X, Xu H, Xiao L. CircSCMH1 Accelerates Sorafenib Resistance in Hepatocellular Carcinoma by Regulating HN1 Expression via miR-485-5p. Mol Biotechnol 2024:10.1007/s12033-024-01054-4. [PMID: 38372878 DOI: 10.1007/s12033-024-01054-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/02/2024] [Indexed: 02/20/2024]
Abstract
Sorafenib (SOR) is the first-line chemotherapeutic therapy for hepatocellular carcinoma (HCC) treatment, but SOR resistance is a key factor affecting the therapeutic effect. Emerging studies have suggested that circular RNAs (circRNAs) play an important role in the development of drug resistance in HCC cells. This paper aimed to elucidate the potential role and molecular mechanism of circRNA Scm polycomb group protein homolog 1 (circSCMH1) in SOR-resistant HCC cells. CircSCMH1, microRNA-485-5p (miR-485-5p), and hematological and neurological expressed 1 (HN1) contents were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Cell Counting Kit-8 (CCK8) assay was adopted to detect the SOR sensitivity of cells. Cell proliferation, migration, invasion, and apoptosis were assessed using colony formation, 5-Ethynyl-2'-deoxyuridine (EdU), transwell, and flow cytometry assays. Glucose metabolism was analyzed using commercial kits. HN1, B cell lymphoma-2 (Bcl-2), and Bcl-2-associated X (Bax) protein levels were assessed using western blot. Binding between miR-485-5p and circSCMH1 or HN1 was verified using a dual-luciferase reporter. Xenograft tumor model was used to explore the function of circSCMH1 in vivo. CircSCMH1 expression and HN1 abundances were increased, but the miR-485-5p level was reduced in SOR-resistant HCC tissues and cells. Deficiency of circSCMH1 enhanced SOR sensitivity by suppressing cell proliferation, migration, invasion, and glucose metabolism and inducing cell apoptosis in SOR-resistant HCC cell lines (Huh7/SOR and Hep3B/SOR). Mechanistically, circSCMH1 sponged miR-485-5p to positively regulate HN1 expression. Importantly, circSCMH1 depletion inhibited tumor growth and increased SOR sensitivity in vivo. CircSCMH1 promoted SOR resistance in HCC cells at least partly through upregulating HN1 expression by sponging miR-485-5p. These findings elucidated a new regulatory pathway of chemo-resistance in SOR-resistant HCC cells and provided a possible circRNA-targeted therapy for HCC.
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Affiliation(s)
- Meixiang Li
- Department of Surgery and Oncology, The First Affiliated Hospital of Shenzhen University Health Science Center, No. 3002 Sungang West Road, Futian District, Shenzhen, Guangdong, China
| | - Xionghao Pang
- Department of Surgery and Oncology, The First Affiliated Hospital of Shenzhen University Health Science Center, No. 3002 Sungang West Road, Futian District, Shenzhen, Guangdong, China
| | - Haixia Xu
- Department of Surgery and Oncology, The First Affiliated Hospital of Shenzhen University Health Science Center, No. 3002 Sungang West Road, Futian District, Shenzhen, Guangdong, China
| | - Liang Xiao
- Department of Surgery and Oncology, The First Affiliated Hospital of Shenzhen University Health Science Center, No. 3002 Sungang West Road, Futian District, Shenzhen, Guangdong, China.
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Liu Y, Feng Y, Kong X, Wei Y, Zhan M, Wang J, Dai X, Wang L, Ma L, Chen H, Jiang L. A microRNA sponge, LINC02193, promotes neutrophil activation by upregulating ICAM1 and is correlated with ANCA-associated vasculitis. Rheumatology (Oxford) 2023:kead605. [PMID: 37963065 DOI: 10.1093/rheumatology/kead605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 11/16/2023] Open
Abstract
OBJECTIVE To investigate the pathogenic role and underlying mechanisms of lncRNAs in antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (AAV). METHODS: RNA-sequencing (RNA-seq) was applied to screen the expression profile of lncRNAs in peripheral leukocytes from 5 AAV patients and 5 healthy controls (HC). Candidate lncRNAs were preliminarily verified in peripheral leukocytes from 46 AAV patients and 35 HC by qRT-PCR. Then, the identified LINC02193 was further validated in peripheral neutrophils from 67 AAV patients, 45 HC and 64 disease controls. Correlation between LINC02193 levels and disease activity was analyzed. Then, a loss-of-function study was conducted to investigate the role of LINC02193 in neutrophils activation. Furthermore, bioinformatics analysis, dual luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to explore the mechanism of LINC02193 regulating neutrophils activation. RESULTS A total of 467 upregulated and 412 downregulated lncRNAs were identified in AAV patients. From top 5 upregulated lncRNAs, an elevation of LINC02193 was validated in a larger sample of AAV patients, and positively correlated with disease activity. Knockdown of LINC02193 inhibited ROS and NO production, NETs release and adhesion to endothelial cells of differentiated human promyelocytic leukaemia HL‑60 cells (dHL-60), whereas overexpression of ICAM1 counteracted these effects. Mechanistic analysis demonstrated that LINC02193 acted as a miR-485-5p sponge to relieve the repressive effect of miR-485-5p on ICAM1, thus promoting ICAM1 expression. CONCLUSION LINC02193, a novel lncRNA identified in AAV could function as competing endogenous RNAs (ceRNA) for miR-485-5p to promote ICAM1 expression and neutrophils activation, suggesting its potential as a therapeutic target of AAV.
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Affiliation(s)
- Yun Liu
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Yifan Feng
- Department of Ophthalmology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Xiufang Kong
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Yuanyuan Wei
- Shanghai Key Laboratory of Bioactive Small Molecules, State Key Laboratory of Medical Neurobiology, School of Basic Medical Sciences, Fudan University, Shanghai, PR, China
| | - Minglang Zhan
- Department of Rheumatology, Xiamen Hospital, Zhongshan Hospital, Fudan University, Xiamen, China
| | - Jinghua Wang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Xiaojuan Dai
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Li Wang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Lili Ma
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Huiyong Chen
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
| | - Lindi Jiang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, PR China
- Center of Clinical Epidemiology and Evidence-based Medicine, Fudan University, Shanghai, PR, China
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Wei L, Wu Y, Cai S, Qin Y, Xing S, Wang Z. Long Non-coding RNA Linc01224 Regulates Hypopharyngeal Squamous Cell Carcinoma Growth Through Interactions with miR-485-5p and IGF2BP3. J Cancer 2023; 14:3009-3022. [PMID: 37859812 PMCID: PMC10583594 DOI: 10.7150/jca.85019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/05/2023] [Indexed: 10/21/2023] Open
Abstract
Increasing evidence illustrates that long non-coding RNAs (lncRNAs) play significant oncogenic roles, including hypopharyngeal squamous cell carcinoma (HSCC). The function and mechanism of long non-coding RNAs (lncRNAs) in hypopharyngeal squamous cell carcinoma (HSCC) have not been fully elucidated. Therefore, this study aimed to investigate the role of a specific lncRNA, linc01224, in regulating the miR-485-5p/IGF2BP3 axis in HSCC. We confirmed the lncRNA expression profiles in 5 pairs of HSCC and normal tissues by lncRNA sequencing. Another 28 HSCC tissues were further validated by quantitative real-time PCR (qRT-PCR). qRT-PCR was also used to detect the expression levels of linc01224, miR-485-5p and IGF2BP3 in HSCC cell lines. Next, functional experiments in vitro and in vivo were applied to determine the effects of linc01224 silencing on tumor proliferation, migration, apoptosis and progression in HSCC. Linc01224 expression was significantly higher in HSCC tissues than in adjacent normal tissues. In addition, HSCC patients with low IGF2BP3 expression had good survival. In vitro assays were mechanistically performed to explore whether linc01224 positively regulates IGF2BP3 expression via its competitive inhibition of miR-485-5p. An in vivo animal model also confirmed that linc01224 could promote the occurrence and development of HSCC. Our study first identified that linc01224 plays an oncogenic role in HSCC. It suggests that linc01224 may act as a prognostic biomarker and potential therapeutic target for HSCC.
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Affiliation(s)
- Lai Wei
- Department of Otolaryngology, The Eighth Affiliated Hospital of Sun Yat-sen University, 518033, Shenzhen, China
- Department of Otolaryngology, Affiliated Zhongshan Hospital of Dalian University, 116000, Dalian, China
| | - Yuanhang Wu
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, 116000, Dalian, China
| | - Sisi Cai
- Department of Otolaryngology, Affiliated Zhongshan Hospital of Dalian University, 116000, Dalian, China
| | - Yulan Qin
- Department of Otolaryngology, Affiliated Zhongshan Hospital of Dalian University, 116000, Dalian, China
| | - Shuangchun Xing
- Department of Otolaryngology, The First Affiliated Hospital of Dalian Medical University, 116000, Dalian, China
| | - Zhiqiang Wang
- Department of Otolaryngology, The Eighth Affiliated Hospital of Sun Yat-sen University, 518033, Shenzhen, China
- Department of Otolaryngology, Affiliated Zhongshan Hospital of Dalian University, 116000, Dalian, China
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Kim TW, Ji H, Yun NH, Shin CH, Kim HH, Cho YB. Two antisense RNAs-AFAP1-AS1 and MLK7-AS1-promote colorectal cancer progression by sponging miR-149-5p and miR-485-5p. Mol Ther Nucleic Acids 2023; 33:305-320. [PMID: 37547289 PMCID: PMC10400868 DOI: 10.1016/j.omtn.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 07/11/2023] [Indexed: 08/08/2023]
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer-related deaths. Antisense RNAs (asRNAs) are closely associated with cancer malignancy. This study aimed to identify the action mechanism of asRNAs in controlling CRC malignancy. Analysis of the RNA sequencing data revealed that AFAP1-AS1 and MLK7-AS1 were upregulated in CRC patients and cell lines. High levels of both asRNAs were associated with poor prognosis in patients with CRC. Both in vitro and in vivo experiments revealed that the knockdown of the two asRNAs decreased the proliferative and metastatic abilities of CRC cells. Mechanistically, AFAP1-AS1 and MLK7-AS1 decreased the levels of miR-149-5p and miR-485-5p by functioning as ceRNAs. Overexpression of miRNAs by introducing miRNA mimics suppressed the expression of SHMT2 and IGFBP5 by directly binding to the 3' UTR of their mRNA. Knockdown of both asRNAs decreased the expression of SHMT2 and IGFBP5, which was reversed by inhibition of both miRNAs by miRNA inhibitors. In vivo pharmacological targeting of both asRNAs by small interfering RNA-loaded nanoparticles showed that knockdown of asRNAs significantly reduced tumor growth and metastasis. Our findings demonstrate that AFAP1-AS1 and MLK7-AS1 promote CRC progression by sponging the tumor-suppressing miRNAs miR-149-5p and miR-485-5p, thus upregulating SHMT2 and IGFBP5.
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Affiliation(s)
- Tae Won Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Haein Ji
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Nak Hyeon Yun
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Chang Hoon Shin
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
- Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea
| | - Yong Beom Cho
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Gyeonggi-do 16419, Republic of Korea
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Nie Z, Xu M, Zhou L, Pan B, Xu T, He B, Wang S. lncSNHG3 drives breast cancer progression by epigenetically increasing CSNK2A1 expression level. Aging (Albany NY) 2023; 15:5734-5750. [PMID: 37348024 PMCID: PMC10333090 DOI: 10.18632/aging.204824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/06/2023] [Indexed: 06/24/2023]
Abstract
Mounting evidence demonstrates that long noncoding RNAs (lncRNAs) have critical roles in the initiation and progression of cancer. Here, we report that small nucleolar RNA host gene 3 (SNHG3) is a key regulator of breast cancer progression. We analyzed RNA sequencing data to explore abnormally expressed lncRNAs in breast cancer. The effects of SNHG3 on breast cancer were investigated via in vitro and in vivo assays (CCK-8 assay, colony formation assay, flow cytometry assay, EdU assay, xenograft model, immunohistochemistry, and Western blot). The mechanism of SNHG3 action was explored through bioinformatics, RNA fluorescence in situ hybridization, luciferase reporter assay, RNA pull-down assay, chromatin immunoprecipitation assay and RNA immunoprecipitation assay. We found that SNHG3 expression was upregulated in breast cancer tissues and that its high expression level was associated with poor survival. We also found that high SNHG3 expression was partly induced by STAT3. Moreover, SNHG3 knockdown significantly repressed breast cancer cell growth both in vitro and in vivo. In the cytoplasm, SNHG3 facilitated the expression of Casein kinase II-A1 (CSNK2A1) by absorbing miR-485-5p and recruiting the HuR protein, participating in the malignant progression of breast cancer. Taken together, our study reveals a SNHG3-based regulatory network, which plays an oncogenic role in breast cancer and suggests that SNHG3 may serve as a potential target for the diagnosis and treatment of breast cancer.
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Affiliation(s)
- Zhenlin Nie
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
| | - Mu Xu
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
| | - Linpeng Zhou
- Division of Clinical Pharmacy, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, Jiangsu, China
| | - Bei Pan
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
| | - Tao Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
| | - Bangshun He
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
| | - Shukui Wang
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
- Jiangsu Cancer Personalized Medicine Collaborative Innovation Center, Nanjing 210029, Jiangsu, China
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Xu Y, Hu T, Ding H, Yuan Y, Chen R. miR-485-5p alleviates obstructive sleep apnea syndrome with hypertension by inhibiting PI3K/AKT signaling pathway via downregulating HIF3A expression. Sleep Breath 2023; 27:109-119. [PMID: 35132534 DOI: 10.1007/s11325-022-02580-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 01/29/2022] [Accepted: 02/02/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The obstructive sleep apnea syndrome (OSAS) is a risk factor for hypertension. MiRNAs are key regulators in hypertension. However, their roles in OSAS with hypertension remain unclear. This study aimed to clarify the function and mechanism of miRNAs in OSAS with hypertension. METHODS A chronic intermittent hypoxia (CIH) model was established to simulate OSAS with hypertension. The proliferation and migration of pulmonary artery smooth muscle cells (PASMCs) were assessed by CCK-8 and wound healing assays. qRT-PCR, Western blot, and immunofluorescence staining were used to detect the expression of HIF3A and PI3K/AKT pathway. Hematoxylin-eosin and Masson staining were used to detect the histopathological changes of pulmonary arterial hypertension (PAH). The regulatory function of miR-485-5p to HIF3A was assessed by dual luciferase reporter gene assay. RESULTS MiR-485-5p was significantly downregulated in the rats with OSAS-induced PAH. MiR-485-5p alleviated proliferation and migration of PASMCs in vitro and ameliorated OSAS-induced PAH in vivo. HIF3A could act as a target of miR-485-5p. HIF3A downregulation regulated by miR-485-5p alleviated proliferation and migration of PASMCs in vitro and ameliorated OSAS-induced PAH in vivo. In addition, we found that PI3K/AKT signaling was significantly inhibited in OSAS-induced PAH. CONCLUSION MiR-485-5p alleviates OSAS with hypertension by inhibiting the PI3K/Akt pathway via downregulating HIF3A expression through the PI3K/AKT pathway. These findings suggest that miR-485-5p has the potential for treating OSAS-associated hypertension.
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Affiliation(s)
- Yan Xu
- Department of Respiratory, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Jiangsu, 215004, Suzhou, China.,Department of Respiratory, The Affiliated Hospital of Yangzhou University, No. 45 Taizhou Road, Jiangsu, 225001, Yangzhou, China
| | - Tao Hu
- Department of Respiratory, The Affiliated Hospital of Yangzhou University, No. 45 Taizhou Road, Jiangsu, 225001, Yangzhou, China
| | - Huizhen Ding
- Department of Respiratory, The Affiliated Hospital of Yangzhou University, No. 45 Taizhou Road, Jiangsu, 225001, Yangzhou, China
| | - Yi Yuan
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Jiangsu, 212013, Zhenjiang , China
| | - Rui Chen
- Department of Respiratory, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Jiangsu, 215004, Suzhou, China.
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He W, Zhang F, Jiang F, Liu H, Wang G. Correlations between serum levels of microRNA-148a-3p and microRNA-485-5p and the progression and recurrence of prostate cancer. BMC Urol 2022; 22:195. [PMID: 36434610 PMCID: PMC9701040 DOI: 10.1186/s12894-022-01143-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 11/07/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Unpredicted postoperative recurrence of prostate cancer, one of the most common malignancies among males worldwide, has become a prominent issue affecting patients after treatment. Here, we investigated the correlation between the serum miR-148a-3p and miR-485-5p expression levels and cancer recurrence in PCa patients, aiming to identify new biomarkers for diagnosis and predicting postoperative recurrence of prostate cancer. METHODS A total of 198 male PCa cases treated with surgery, postoperative radiotherapy, and chemotherapy were involved in the presented study. Serum levels of miR-148a-3p and miR-485-5p were measured before the initial operation for the involved cases, which were then followed up for two years to monitor the recurrence of cancer and to split the cases into recurrence and non-recurrence groups. Comparison of the relative expressions of serum miR-148a-3p and miR-485-5p were made and related to other clinic pathological features. RESULTS Pre-surgery serum levels of miR-148a-3p in patients with TNM stage cT1-2a prostate cancer (Gleason score < 7) were significantly lower (P < 0.05) than levels in patients with TNM Classification of Malignant Tumors (TNM) stage cT2b and higher prostate cancer (Gleason score ≥ 7). pre-surgery serum levels of miR-485-5p in patients with TNM stage cT1-2a prostate cancer (Gleason score < 7) were significantly higher (P < 0.05) than in patients with TNM stage cT2b and higher cancer (Gleason score ≥ 7). Serum miR-148a-3p level in recurrence group is higher than the non-recurrence group (P < 0.05) while serum miR-485-5p level in recurrence group is lower than non-recurrence group (P < 0.05). ROC curve analysis showed the AUCs of using miR-148a-3p, miR-485-5p, and combined detection for predicting recurrence of prostate cancer were 0.825 (95% CI 0.765-0.875, P < 0.0001), 0.790 (95% CI 0.726-0.844, P < 0.0001), and 0.913 (95% CI 0.865-0.948, P < 0.0001). CONCLUSION Pre-surgery serum miR-148a-3p level positively correlates while miR-485-5p level negatively correlates with prostate cancer's progressing and postoperative recurrence. Both molecules show potential to be used for predicting postoperative recurrence individually or combined.
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Affiliation(s)
- Wenyan He
- grid.513202.7Department of Urology, Yan’an People’s Hospital, Yan’an, China
| | - Furong Zhang
- grid.507892.10000 0004 8519 1271Department of Neurology, Affiliated Hospital of Yan’an University, Yan’an, China
| | - Feng Jiang
- grid.412750.50000 0004 1936 9166Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, NY USA
| | - Huan Liu
- grid.412750.50000 0004 1936 9166Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, NY USA
| | - Gang Wang
- grid.513202.7Department of Urology, Yan’an People’s Hospital, Yan’an, China
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Chen Y, Wu L, Bao M. MiR-485-5p Suppress the Malignant Characteristics of the Lung Adenocarcinoma via Targeting NADPH Quinone Oxidoreductase-1 to Inhibit the PI3K/Akt. Mol Biotechnol 2022; 65:794-806. [PMID: 36219369 DOI: 10.1007/s12033-022-00577-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/22/2022] [Indexed: 10/17/2022]
Abstract
Lung adenocarcinoma (LUAD), a prevalent form of non-small cell lung cancer (NSCLC), has a high incidence and mortality rate. However, its molecular regulatory mechanisms have yet to be fully understood. The purpose of this study was to look into how NADPH quinone oxidoreductase-1 (NQO1) and it miR-485-5p and affected LUAD cells. The levels of miR-485-5p and NQO1 expression in LUAD cells and tissues were determined by means of quantitative reverse transcription polymerase chain reaction. The viability, proliferation, migration, and apoptosis of LUAD cells were assessed using cell counting Kit-8, 5-bromo-2'-deoxyuridine, transwell, and caspase-3 assays, respectively. Western blot experiments were used to examine the relative protein expression of matrix metallopeptidase 2 and matrix metallopeptidase 9, as well as the phosphorylation of phosphoinositide 3-kinase (PI3K) and protein kinase B (Akt) in LUAD cells. Luciferase and RNA pull-down experiments were also conducted for the verification of miR-485-5p's underlying relationship with NQO1. In our study, we found that LUAD cells and tissues had miR-485-5p downregulation and NQO1 upregulation. The experimental outcomes indicated that miR-485-5p overexpression in LUAD cells reduced their malignant behaviors, suppressed PI3K and Akt phosphorylation, and facilitated apoptosis. The results also revealed that NQO1 was a direct miR-485-5p target, and that NQO1 could reverse miR-485-5p's inhibitory effect on the malignant phenotype of LUAD cells. Furthermore, it was also observed that through targeting NQO1, miR-485-5p could suppress LUAD cell migration and proliferation, further blocking the phosphorylation of PI3K and Akt and inducing apoptosis among LUAD cells. In conclusion, the miR-485-5/NQO1 axis regulates LUAD progression through the PI3K/Akt pathway.
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Affiliation(s)
- Yupeng Chen
- Thoracic Surgery, Wuhan No.1 Hospital, Wuhan, 430022, Hubei, China
| | - Lin Wu
- Department of Oncology, The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, 430014, Hubei, China
| | - Min Bao
- Department of Respiratory Medicine, Wuhan Third Hospital, No. 241 Pengliuyang Road, Wuchang District, Wuhan, 430060, Hubei, China.
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Lee WJ, Ji H, Jeong SD, Pandey PR, Gorospe M, Kim HH. LINC00162 regulates cell proliferation and apoptosis by sponging PAQR4-targeting miR-485-5p. J Cell Physiol 2022; 237:2943-2960. [PMID: 35491694 PMCID: PMC9846112 DOI: 10.1002/jcp.30758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 03/30/2022] [Accepted: 04/06/2022] [Indexed: 01/21/2023]
Abstract
Growing evidence indicates that long intergenic noncoding RNAs play an important role in cancer progression by affecting gene regulation at the transcriptional and posttranscriptional levels. Recent studies have shown that long intergenic noncoding RNA functions as a competitive endogenous RNA, which can interact with and mitigate the function of microRNA. In this study, we investigated the molecular mechanism by which LINC00162 regulates cell proliferation and apoptotic cell death. By analyzing RNA sequencing data, LINC00162 was identified to be a target of heterogeneous nuclear ribonucleoprotein K (hnRNPK). HnRNPK positively regulated LINC00162 expression through p38 mitogen-activated protein kinase. Lowering the level of either hnRNPK or LINC00162 decreased proliferation and colony formation while it increased apoptotic cell death. Small RNA sequencing followed by the antisense oligonucleotide pulldown, revealed that LINC00162 interacts directly with miR-485-5p which exhibited tumor-suppressing effects by suppressing cell proliferation and colony formation, and increasing apoptotic cell death. Through the bioinformatic approaches, progestin and adipoQ receptor 4 (PAQR4) was selected as a common target of LINC00162 and miR-485-5p. miR-485-5p decreased the expression of PAQR4 by directly binding to the 3'-untranslated region of PAQR4 messenger RNA. Knockdown of hnRNPK and LINC00162 increased the level of functional miR-485-5p, indicating that LINC00162 may compete for miR-485-5p, thereby derepressing PAQR4 expression. Overexpression of either hnRNPK or LINC00162, or inhibition of miR-485-5p, protected cells against etoposide-induced apoptotic death. Our findings demonstrate that a regulatory paradigm implicating hnRNPK, LINC00162, miR-485-5p, and PAQR4 plays an important role in cell proliferation and apoptosis, and is a promising target for cancer therapeutics.
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Affiliation(s)
- Woo Joo Lee
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Haein Ji
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Seong Dong Jeong
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea,Department of Biopharmaceutical Convergence, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Poonam R Pandey
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea,Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea,Correspondence: Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea. Phone: +82-2-3410-1039; Fax: +82-2-3410-0534;
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10
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Sun ZP, Tan ZG, Peng C. Long noncoding RNA LINC01419 promotes hepatocellular carcinoma malignancy by mediating miR-485-5p/LSM4 axis. Kaohsiung J Med Sci 2022; 38:826-838. [PMID: 35748489 DOI: 10.1002/kjm2.12566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 12/29/2022] Open
Abstract
To investigate the effect of long noncoding RNA (LINC01419)/miR-485-5p/LSM4 on the malignant behavior of hepatocellular carcinoma (HCC) cells. The expressions of LINC01419, miR-485-5p, and LSM4 were determined in HCC at the cellular and clinical levels, and cell biological behavior was evaluated. The relationships between LINC01419, miR-485-5p, and LSM4 were predicted and verified. Additionally, the subcellular localization of LINC01419 in HCC cells was analyzed. Finally, an animal experiment was conducted to confirm the effect of LINC01419 silencing on tumor growth. in HCC tissues and cells, LINC01419 and LSM4 were increasingly expressed, but miR-485-5p was decreasingly expressed. LINC01419 negatively regulated miR-485-5p- and miR-485-5p-targeted LSM4. LINC01419 was localized in the cytoplasm of HCC cells. Downregulation of miR-485-5p or upregulation of LSM4 reversed the inhibition of HCC cell malignant behavior by LINC01419 interference. LINC01419 sponges miR-485-5p to upregulate LSM4 expression, thereby facilitating the biological behavior of HCC cells.
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Affiliation(s)
- Zeng-Peng Sun
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, People's Republic of China
| | - Zhi-Guo Tan
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, People's Republic of China
| | - Chuang Peng
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, People's Republic of China
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11
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Jang TH, Huang WC, Tung SL, Lin SC, Chen PM, Cho CY, Yang YY, Yen TC, Lo GH, Chuang SE, Wang LH. MicroRNA-485-5p targets keratin 17 to regulate oral cancer stemness and chemoresistance via the integrin/FAK/Src/ERK/β-catenin pathway. J Biomed Sci 2022; 29:42. [PMID: 35706019 PMCID: PMC9202219 DOI: 10.1186/s12929-022-00824-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 06/07/2022] [Indexed: 01/21/2023] Open
Abstract
Background The development of drug resistance in oral squamous cell carcinoma (OSCC) that frequently leads to recurrence and metastasis after initial treatment remains an unresolved challenge. Presence of cancer stem cells (CSCs) has been increasingly reported to be a critical contributing factor in drug resistance, tumor recurrence and metastasis. Thus, unveiling of mechanisms regulating CSCs and potential targets for developing their inhibitors will be instrumental for improving OSCC therapy. Methods siRNA, shRNA and miRNA that specifically target keratin 17 (KRT17) were used for modulation of gene expression and functional analyses. Sphere-formation and invasion/migration assays were utilized to assess cancer cell stemness and epithelial mesenchymal transition (EMT) properties, respectively. Duolink proximity ligation assay (PLA) was used to examine molecular proximity between KRT17 and plectin, which is a large protein that binds cytoskeleton components. Cell proliferation assay was employed to evaluate growth rates and viability of oral cancer cells treated with cisplatin, carboplatin or dasatinib. Xenograft mouse tumor model was used to evaluate the effect of KRT17- knockdown in OSCC cells on tumor growth and drug sensitization. Results Significantly elevated expression of KRT17 in highly invasive OSCC cell lines and advanced tumor specimens were observed and high KRT17 expression was correlated with poor overall survival. KRT17 gene silencing in OSCC cells attenuated their stemness properties including markedly reduced sphere forming ability and expression of stemness and EMT markers. We identified a novel signaling cascade orchestrated by KRT17 where its association with plectin resulted in activation of integrin β4/α6, increased phosphorylation of FAK, Src and ERK, as well as stabilization and nuclear translocation of β-catenin. The activation of this signaling cascade was correlated with enhanced OSCC cancer stemness and elevated expression of CD44 and epidermal growth factor receptor (EGFR). We identified and demonstrated KRT17 to be a direct target of miRNA-485-5p. Ectopic expression of miRNA-485-5p inhibited OSCC sphere formation and caused sensitization of cancer cells towards cisplatin and carboplatin, which could be significantly rescued by KRT17 overexpression. Dasatinib treatment that inhibited KRT17-mediated Src activation also resulted in OSCC drug sensitization. In OSCC xenograft mouse model, KRT17 knockdown significantly inhibited tumor growth, and combinatorial treatment with cisplatin elicited a greater tumor inhibitory effect. Consistently, markedly reduced levels of integrin β4, active β-catenin, CD44 and EGFR were observed in the tumors induced by KRT17 knockdown OSCC cells. Conclusions A novel miRNA-485-5p/KRT17/integrin/FAK/Src/ERK/β-catenin signaling pathway is unveiled to modulate OSCC cancer stemness and drug resistance to the common first-line chemotherapeutics. This provides a potential new therapeutic strategy to inhibit OSCC stem cells and counter chemoresistance. Supplementary Information The online version contains supplementary material available at 10.1186/s12929-022-00824-z.
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Affiliation(s)
- Te-Hsuan Jang
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan.,National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan.,Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
| | - Wei-Chieh Huang
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
| | - Shiao-Lin Tung
- Department of Hematology and Oncology, Ton-Yen General Hospital, Zhubei City, Hsinchu County, Taiwan.,Department of Nursing, Hsin Sheng Junior College of Medical Care and Management, Taoyuan City, Taiwan
| | - Sheng-Chieh Lin
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
| | - Po-Ming Chen
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
| | - Chun-Yu Cho
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Ya-Yu Yang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Tzu-Chen Yen
- Department of Nuclear Medicine and Molecular Imaging Center, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Guo-Hsuen Lo
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Shuang-En Chuang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan.
| | - Lu-Hai Wang
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan. .,Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan. .,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan.
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12
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Wan H, Wang Y, Pan Q, Chen X, Chen S, Li X, Yao W. Quercetin attenuates the proliferation, inflammation, and oxidative stress of high glucose-induced human mesangial cells by regulating the miR-485-5p/YAP1 pathway. Int J Immunopathol Pharmacol 2022; 36:20587384211066440. [PMID: 35129398 PMCID: PMC8832592 DOI: 10.1177/20587384211066440] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Diabetic nephropathy (DN) is a kidney damage caused by diabetes and the main cause of end-stage renal disease. However, the current treatment of DN has many limitations. Quercetin is a bioflavonoid compound with therapeutic benefits in metabolic diseases. This study aims to determine the therapeutic potentials and underlying mechanism of quercetin on DN. Methods We collected blood samples from DN patients and healthy controls and treated human mesangial cells (HMCs) with high glucose (HG) to establish an in vitro model of DN. Then we assessed the expression difference of miR-485-5p as well as YAP1 in serum of DN patients and healthy controls and between HG-induced HMCs and control cells. qRT-PCR and western blot were performed to assess miR-485-5p and YAP1 expression levels; CCK-8 and ELISAs were used to examine cell proliferation, inflammation, and oxidative stress. Dual luciferase reporter assay was implemented to detect the binding of miR-485-5p and YAP1 mRNA sequence. Results Quercetin suppressed proliferation, inflammation, and oxidative stress of HMCs induced by HG. As for mechanism, miR-485-5p directly bound to YAP1 and inhibited YAP1 expression. The downregulation of miR-485-5p and upregulation of YAP1 were also observed in the serum of DN patients. Quercetin modulated miR-485-5p/YAP1 axis to regulate HG-induced inflammation and oxidative stress. Conclusion: Quercetin inhibits the proliferation, inflammation, and oxidative stress of HMCs induced by HG through miR-485-5p/YAP1 axis, which might provide a novel treatment strategy for DN.
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Affiliation(s)
- Huan Wan
- Department of Radiotherapy Center, the Fifth Hospital of Wuhan, Wuhan, Hubei
| | - Yaping Wang
- Department of Endocrinology, the Fifth Hospital of Wuhan, Wuhan, Hubei
| | - Qingyun Pan
- Department of Endocrinology, the Fifth Hospital of Wuhan, Wuhan, Hubei
| | - Xia Chen
- Department ofTraditional Chinese Medicine, Yangpu Hospital, Tongji University School of Medicine, Shanghai
| | - Sijun Chen
- Department of Nephrology, Yangpu Hospital, Tongji University School of Medicine, Shanghai
| | - Xiaohui Li
- Department of Paediatrics, the Fifth Hospital of Wuhan, Wuhan, Hubei
| | - Weiguo Yao
- Department of Nephrology, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai
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13
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Chen J, Wu S, Wang J, Sha Y, Ji Y. Hsa_circ_0074269-mediated Upregulation of TUFT1 Through miR-485-5p Increases Cisplatin Resistance in Cervical Cancer. Reprod Sci 2022; 29:2236-2250. [PMID: 35075616 DOI: 10.1007/s43032-022-00855-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 01/09/2022] [Indexed: 12/27/2022]
Abstract
Most cervical cancer patients are prone to developing acquired cisplatin (DDP) resistance. Hsa_circ_0074269 (circ_0074269) plays a promoting role in cervical cancer, but whether circ_0074269 mediates cervical cancer resistance to DDP is unclear. Expression of circ_0074269 was detected by real-time quantitative polymerase chain reaction (RT-qPCR). The half-maximal inhibitory concentration (IC50) value, viability, proliferation, colony formation, migration, and apoptosis of DDP-resistant cervical cancer cells were determined. The molecular mechanisms associated with circ_0074269 were predicted by bioinformatics analysis and confirmed by dual-luciferase reporter and RIP assays. Xenograft assay was conducted to validate the effect of circ_0074269 on DDP resistance in vivo. Exosomes were isolated by ultracentrifugation. Circ_0074269 was overexpressed in DDP-resistant cervical cancer samples and cells. Silencing of circ_0074269 elevated DDP sensitivity, repressed DDP-resistant cervical cancer cell proliferation, and induced DDP-resistant cervical cancer cell apoptosis in vivo and in vitro and curbed DDP-resistant cervical cancer cell migration in vitro. And circ_0074269 could regulate DDP resistance via regulating TUFT1 expression via sponging miR-485-5p. More strikingly, circ_0074269 was also overexpressed in exosomes from DDP-resistant cervical cancer cells, and circ_0074269 could be delivered via exosomes. Circ_0074269 facilitated DDP resistance via elevating TUFT1 expression via sponging miR-485-5p, proving novel evidence to offer circ_0074269 as a target for cervical cancer treatment.
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Affiliation(s)
- Jing Chen
- Department of Pathology, Jingjiang People's Hospital, Taizhou City, 214500, Jiangsu, China
| | - Sheng Wu
- Department of Pathology, Jingjiang People's Hospital, Taizhou City, 214500, Jiangsu, China
| | - Jue Wang
- Department of Pathology, Jingjiang People's Hospital, Taizhou City, 214500, Jiangsu, China
| | - Yu Sha
- Department of Pathology, Jingjiang People's Hospital, Taizhou City, 214500, Jiangsu, China
| | - Yong Ji
- Department of General Surgery, Jingjiang People's Hospital, No.9-5, Kejixincun, Jingjiang, Taizhou City, 214500, Jiangsu Province, China.
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14
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Zhang S, Wang X, Wang D. Long non-coding RNA LINC01296 promotes progression of oral squamous cell carcinoma through activating the MAPK/ERK signaling pathway via the miR-485-5p/PAK4 axis. Arch Med Sci 2022; 18:786-799. [PMID: 35591837 PMCID: PMC9102572 DOI: 10.5114/aoms.2019.86805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/19/2019] [Indexed: 12/05/2022] Open
Abstract
INTRODUCTION Long intergenic non-protein-coding RNA 1296 (LINC01296), a newly identified lncRNA, can function as an oncogenic driver to promote the development of multiple carcinomas. However, the effect of LINC01296 on oral squamous cell carcinoma (OSCC) is still unclear. MATERIAL AND METHODS We determined the expression and role of LINC01296 in OSCC tissues and cell lines. The cell viability, migration and invasion were determined by MTT, wound healing assay and transwell assay, respectively. Flow cytometry was used for detecting cell cycle and apoptosis. The interaction and association between LINC01296, microRNA-485-5p (miR-485-5p) and p21 (RAC1) activated kinase 4 (PAK4) were analyzed by RNA immunoprecipitation (RIP) and luciferase reporter assays. The xenograft mouse model was established to detect the effect of LINC01296 on OSCC tumor growth. RESULTS Our study showed that LINC01296 was over-expressed in OSCC tissues and cell lines. The level of LINC01296 was positively correlated with the patient's tumor node metastasis (TNM) stage and nodal invasion. Knockdown of LINC01296 effectively inhibits cell viability, migration and invasion but promotes cell apoptosis in vitro. The in vivo experiment showed that LINC01296 knockdown inhibited OSCC tumor growth. The following analysis indicated that LINC01296 acted as a ceRNA for miR-485-5p, and PAK4 was identified as a direct target of miR-485-5p. Furthermore, we found that the effects of LINC01296 on OSCC progression were through regulating the expression of PAK4/p-MEK/p-ERK via sponging miR-485-5p. CONCLUSIONS LINC01296 promote the cell cycle, proliferation, migration and invasion, and inhibit apoptosis of OSCC cells through activating the MAPK/ERK signaling pathway via sponging miR-485-5p to regulate PAK4 expression. These results suggested that the LINC01296/miR-485-5p/PAK4 axis was closely associated with OSCC progression. Our study provides a new insight into the molecular pathogenesis of OSCC, and may supply novel biomarkers for diagnosis and therapy of OSCC.
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Affiliation(s)
- Shuangyue Zhang
- Department of Stomatology, The Affiliated Huaian No. 1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu Province, China
| | - Xiaowei Wang
- Department of Oncology, The Affiliated Huaian No. 1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu Province, China
| | - Dazhao Wang
- Department of Stomatology, The Affiliated Huaian No. 1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu Province, China
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15
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Ma X, Yang X, Li S, Lin Y, Dong T. miR-485-5p Induces HSP90 Ubiquitination to Impede Circular RNAcircHIPK2 Associated Cell Proliferation of Non-Small Cell Lung Cancer: Therapeutic Implications. Ann Clin Lab Sci 2022; 52:109-116. [PMID: 35181624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To investigate the function and mechanism of circular RNA circ HIPK2 on non-small cell lung cancer cell proliferation and progression. METHODS Patients with non-small cell lung cancer (n=40) were collected from May 2015 to August 2016. RESULTS Circular RNA circ HIPK2 expressions were up-regulated in patients with non-small cell lung cancer, compared with paracancerous tissue. Circular RNA circ HIPK2 expressions in III-IV patients with non-small cell lung cancer were higher than those of I-II patients. Overall survival rate and disease-free survival rate of patients with high circ HIPK2 expression were lower than those of patients with low circ HIPK2 expression. Circ HIPK2 promoted cell proliferation of non-small cell lung cancer. MiR-485-5p is a target for circ HIPK2 in non-small cell lung cancer; it reduced cell proliferation and accelerated HSP90 Ubiquitination in non-small cell lung cancer. CONCLUSION The present study suggests that circ HIPK2/miR-485-5p plays a crucial role in the progression of non-small cell lung cancer by regulating HSP90 function, thereby may be an inhibition therapeutic target of non-small cell lung cancer.
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Affiliation(s)
- Xuemei Ma
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Jiamusi University, Jiamusi City, Heilongjiang Province, China
| | - Xiaodong Yang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Jiamusi University, Jiamusi City, Heilongjiang Province, China
| | - Shumin Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Jiamusi University, Jiamusi City, Heilongjiang Province, China
| | - Yang Lin
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Jiamusi University, Jiamusi City, Heilongjiang Province, China
| | - Tianqi Dong
- Graduate School of Jiamusi University, Jiamusi City, Heilongjiang Province, China
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16
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Zhao W, Guo J, Li H, Cai L, Duan Y, Hou X, Diao Z, Shao X, Du H, Li C. FAM83H-AS1/ miR-485-5p/MEF2D axis facilitates proliferation, migration and invasion of hepatocellular carcinoma cells. BMC Cancer 2021; 21:1310. [PMID: 34876040 PMCID: PMC8650424 DOI: 10.1186/s12885-021-08923-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 10/27/2021] [Indexed: 12/17/2022] Open
Abstract
Background Abundant evidence has manifested that long noncoding RNAs (lncRNAs) are closely implicated in human cancers, including hepatocellular carcinoma (HCC). Remarkably, lncRNA FAM83H antisense RNA 1 (FAM83H-AS1) has been reported to be a tumor-propeller in multiple cancers. However, its effect on HCC progression remains unknown. Methods FAM83H-AS1 expression was analyzed by RT-qPCR. Colony formation, EdU, and flow cytometry as well as transwell assays were implemented to analyze the biological functions of FAM83H-AS1 on HCC progression. Luciferase reporter, RIP and RNA pull-down assays were implemented to detect the interaction among FAM83H-AS1, microRNA-485-5p (miR-485-5p), and myocyte enhancer factor 2D (MEF2D) in HCC cells. Results FAM83H-AS1 expression in HCC cells was markedly elevated. FAM83H-AS1 accelerated cell proliferation, migration and invasion whereas inhibiting cell apoptosis in HCC. Besides, we confirmed that FAM83H-AS1 acts as a miR-485-5p sponge in HCC cells. Additionally, MEF2D was verified to be a direct target of miR-485-5p. FAM83H-AS1 could upregulate MEF2D expression via sponging miR-485-5p. Further, rescue experiments testified that MEF2D upregulation or miR-485-5p downregulation offset the repressive effect of FAM83H-AS1 depletion on HCC cell progression. Conclusions FAM83H-AS1 facilitates HCC malignant progression via targeting miR-485-5p/MEF2D axis, suggesting that FAM83H-AS1 may be a promising biomarker for HCC treatment in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08923-0.
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Affiliation(s)
- Wenpeng Zhao
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Jiang Guo
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Honglu Li
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Liang Cai
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Youjia Duan
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Xiaopu Hou
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Zhenying Diao
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Xihong Shao
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Hongliu Du
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China
| | - Changqing Li
- Department of Oncology Interventional Radiology, Beijing Ditan Hospital, Capital Medical University, No.8 Jingshundong Road, Beijing, 100015, China.
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Ding L, Liu T, Qu Y, Kang Z, Guo L, Zhang H, Jiang J, Qu F, Ge W, Zhang S. lncRNA MELTF-AS1 facilitates osteosarcoma metastasis by modulating MMP14 expression. Mol Ther Nucleic Acids 2021; 26:787-797. [PMID: 34729248 PMCID: PMC8526484 DOI: 10.1016/j.omtn.2021.08.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 08/20/2021] [Indexed: 12/19/2022]
Abstract
Osteosarcoma is a highly aggressive cancer common in children and adolescents. There is still a lack of effective treatments for metastatic or recurrent osteosarcoma. The role of long non-coding RNAs (lncRNAs) in osteosarcoma has gradually attracted attention. Here, we identified lncRNAs that were abnormally expressed in metastatic osteosarcoma through analyzing the sequencing data of osteosarcoma tissues and selected upregulated lncRNA MELTF-AS1 for detailed study. The qRT-PCR analysis showed that the expression of MELTF-AS1 was increased in osteosarcoma tissues and cells, and the high expression of MELTF-AS1 indicated a poor prognosis of osteosarcoma patients. The high expression of MELTF-AS1 in osteosarcoma was partly due to the transcriptional activation of RREB1. The results of transwell assays, scratch wound healing assays, and the tail vein injection lung metastasis model demonstrated that knocking down MELTF-AS1 inhibited metastasis ability of osteosarcoma cells. Furthermore, the results of RNA pull-down assays, luciferase reporter assays, and RNA immunoprecipitation (RIP) assays revealed that MELTF-AS1 could regulate MMP14 expression through interaction with miR-485-5p. Our study suggested that MELTF-AS1 functioned as a pro-metastasis gene in osteosarcoma by upregulating MMP14 and that it could be a potential therapeutic and diagnostic target for osteosarcoma.
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Affiliation(s)
- Lei Ding
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Taiyuan Liu
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China.,Department of Breast Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, Liaoning, China
| | - Yuan Qu
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Zhichen Kang
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Lixin Guo
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Haina Zhang
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Junjie Jiang
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Fuling Qu
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Wanbao Ge
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Shanyong Zhang
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun 130000, Jilin, China
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18
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He Y, Jiang X, Duan L, Xiong Q, Yuan Y, Liu P, Jiang L, Shen Q, Zhao S, Yang C, Chen Y. LncRNA PKMYT1AR promotes cancer stem cell maintenance in non-small cell lung cancer via activating Wnt signaling pathway. Mol Cancer 2021; 20:156. [PMID: 34856993 PMCID: PMC8638142 DOI: 10.1186/s12943-021-01469-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/22/2021] [Indexed: 11/23/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) is the most common type of human lung cancers, which has diverse pathological features. Although many signaling pathways and therapeutic targets have been defined to play important roles in NSCLC, limiting efficacies have been achieved. Methods Bioinformatics methods were used to identify differential long non-coding RNA expression in NSCLC. Real-time RT-PCR experiments were used to examine the expression pattern of lncRNA PKMYT1AR, miR-485-5p. Both in vitro and in vivo functional assays were performed to investigate the functional role of PKMYT1AR/miR-485-5p/PKMYT1 axis on regulating cell proliferation, migration and tumor growth. Dual luciferase reporter assay, fluorescent in situ hybridization (FISH), immunoblot, co-immunoprecipitation experiments were used to verify the molecular mechanism. Result Here, we identify a human-specific long non-coding RNA (lncRNA, ENST00000595422), termed PKMYT1AR (PKMYT1 associated lncRNA), that is induced in NSCLC by Yin Yang 1 (YY1) factor, especially in cancerous cell lines (H358, H1975, H1299, H1650, A549 and SPC-A1) compared to that in normal human bronchial epithelium cell line (BEAS-2B). We show that PKMYT1AR high expression correlates with worse clinical outcome, and knockdown of PKMYT1AR inhibits tumor cell proliferation, migration and xenograft tumor formation abilities. Bioinformatic analysis and a luciferase assay demonstrate that PKMYT1AR directly interacts with miR-485-5p to attenuate the inhibitory role on its downstream oncogenic factor PKMYT1 (the protein kinase, membrane-associated tyrosine/threonine 1) in NSCLC. Furthermore, we uncover that miR-485-5p is downregulated in both cancerous cell lines and peripheral blood serum isolated from NSCLC patients compared to reciprocal control groups. Consistently, forced expression of miR-485-5p inhibits the proliferation and migration abilities of tumor cells. Moreover, we provide evidence showing that PKMYT1AR targeting antisense oligonucleotide (ASO) dramatically inhibit tumor growth in vivo. Mechanistic study shows that PKMYT1AR/ miR-485-5p /PKMYT1 axis promotes cancer stem cells (CSCs) maintenance in NSCLC via inhibiting β-TrCP1 mediated ubiquitin degradation of β-catenin proteins, which in turn causes enhanced tumorigenesis. Conclusions Our findings reveal the critical role of PKMYT1AR/miR-485-5p /PKMYT1 axis during NSCLC progression, which could be used as novel therapeutic targets in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01469-6.
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Affiliation(s)
- Yaomei He
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiulin Jiang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lincan Duan
- Department of Thoracic Surgery, the Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Qiuxia Xiong
- Department of Clinical Laboratory, the First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Yixiao Yuan
- Department of Thoracic Surgery, the Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, Yunnan, China
| | - Peishen Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liping Jiang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, 650223, Yunnan, China
| | - Qiushuo Shen
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Song Zhao
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Cuiping Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, 650223, Yunnan, China.
| | - Yongbin Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, 650223, Yunnan, China. .,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China.
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19
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Zhang Q, Wu L, Liu SZ, Chen QJ, Zeng LP, Chen XZ, Zhang Q. Hsa_circ_0023990 Promotes Tumor Growth and Glycolysis in Dedifferentiated TC via Targeting miR-485-5p/FOXM1 Axis. Endocrinology 2021; 162:6355332. [PMID: 34414414 DOI: 10.1210/endocr/bqab172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND During the transformation to dedifferentiated thyroid cancer (TC) types, the ability of papillary thyroid carcinomas (PTCs) to concentrate radioactive iodine might be lost, raising difficulty for the current therapy. circRNAs were proved to be implicated in the progression of various cancers. In this study, we aimed to investigate the functional role and mechanism of hsa_circ_0023990 in dedifferentiated TC. METHODS The expression pattern of genes were detected using quantitative PCR or western blot assays. Cell proliferation was determined by CCK8, colony formation, EdU, and cell-cycle assays. Glycolysis was assessed using glucose uptake and lactate production assays. Luciferase reporter assay was performed to examine the interactions between miR-485-5p and hsa_circ_0023990 or FOXM1. Xenograft assay was allowed for observation of tumor growth in vivo. RESULTS Hsa_circ_0023990 and FOXM1 were upregulated in dedifferentiated TC tissues and cell lines. The higher level of hsa_circ_0023900 could stimulate the proliferation and glycolysis of dedifferentiated TC cells via positively regulating FOXM1. Mechanistically, miR-485-5p was demonstrated to interact with hsa_circ_0023990 and FOXM1 and involved in the regulation of has_circ_0023990 and FOXM1 in TC biological processes. CONCLUSION Our results discovered the functional network of hsa_circ_0023990 in dedifferentiated TC development by facilitating cell proliferation and glycolysis via miR-485-5p/FOXM1 axis, implying that hsa_circ_0023990 might be a potential therapeutic target for the dedifferentiated TC treatment.
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Affiliation(s)
- Qing Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
| | - Lian Wu
- Department of Nephrology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
| | - Shao-Zheng Liu
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
| | - Qing-Jie Chen
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
| | - Ling-Peng Zeng
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
| | - Xue-Zhong Chen
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
| | - Qing Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, P.R. China
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20
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Zhou Y, Li J, Yang X, Song Y, Li H. Rhophilin rho GTPase binding protein 1-antisense RNA 1 (RHPN1-AS1) promotes ovarian carcinogenesis by sponging microRNA-485-5p and releasing DNA topoisomerase II alpha ( TOP2A). Bioengineered 2021; 12:12003-12022. [PMID: 34787052 PMCID: PMC8810118 DOI: 10.1080/21655979.2021.2002494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/22/2021] [Accepted: 10/30/2021] [Indexed: 10/29/2022] Open
Abstract
Ovarian cancer (OC) is the most common and lethal gynecological cancer worldwide. Long non-coding RNAs (lncRNAs) and sponging microRNAs (miRNAs) serve as key regulators in the biological processes of OC. We sought to evaluate the effect of the RHPN1-AS1-miR-485-5p-DNA topoisomerase II alpha (TOP2A) axis in regulating OC progression. RHPN1-AS1, miR-485-5p, and TOP2A levels in OC tissues and cells were determined by RT-qPCR. The interaction of RHPN1-AS1/miR-485-5p/TOP2A was assessed using luciferase, RNA immunoprecipitation, and RNA pull-down assays. RHPN1-AS1 silencing allowed us to explore its biological function by measuring cell viability, proliferation, migration, invasion, and apoptosis in OC cells. In vivo experiments were performed to verify the in vitro findings. We found that the RHPN1-AS1 and TOP2A levels were significantly enhanced, whereas the miR-485-5p levels were reduced in OC tissues and cells. RHPN1-AS1 silencing attenuated cell growth, facilitated apoptosis in OC cells, and inhibited tumor growth in vivo. Notably, RHPN1-AS1 negatively regulating miR-485-5p promoted the TOP2A expression in OC cells. In conclusion, RHPN1-AS1 sponging miR-485-5p accelerated the progression of OC by elevating TOP2A expression, which makes it a promising target for the treatment of OC patients.
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Affiliation(s)
- Yi Zhou
- Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha, Hunan, China
- Academician Workstation, Changsha Medical University, Changsha, Hunan, China
| | - Jing Li
- Department of Obstetrics and Gynecology, Wuhan Third Hospital, Wuhan, Hubei, China
| | - Xiaoxin Yang
- Department of Obstetrics and Gynecology, Wuhan Third Hospital, Wuhan, Hubei, China
| | - Yu Song
- Department of Obstetrics and Gynecology, Wuhan Third Hospital, Wuhan, Hubei, China
| | - Haigang Li
- Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha, Hunan, China
- Academician Workstation, Changsha Medical University, Changsha, Hunan, China
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21
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Huang C, Ma L, Duan F, Li R, Zhang Y, Wang Y, Luo M, He Z, Luo Z. MicroRNA-485-5p inhibits glioblastoma progression by suppressing E2F transcription factor 1 under cisplatin treatment. Bioengineered 2021; 12:8020-8030. [PMID: 34726120 PMCID: PMC8806419 DOI: 10.1080/21655979.2021.1982269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cisplatin (CDDP) has been widely used for glioblastoma treatment. miR-485-5p and E2F transcription factor 1 (E2F1) dysfunction has been reported in glioblastoma. Nonetheless, whether CDDP affects glioblastoma progression via the miR-485-5p-E2F1 axis requires investigation. The expression of miR-485-5p and E2F1 was investigated by quantitative real-time polymerase chain reaction or western blotting in glioblastoma tissues and cell lines. The interaction between miR-485-5p and E2F1 was confirmed using a luciferase assay. The malignancy of glioblastoma was detected using Cell Counting Kit-8, bromodeoxyuridine (BrdU), cell adhesion, flow cytometry, and transwell assays. We identified miR-485-5p downregulation and E2F1 upregulation in glioblastoma, and miR-485-5p inhibited cell growth and elevated cell apoptosis in glioblastoma cells after CDDP treatment. Moreover, miR-485-5p targeting E2F1 repressed cell growth and improved cell apoptosis in glioblastoma cells after CDDP treatment. Our study revealed that CDDP retarded glioblastoma cell development via the miR-485-5p-E2F1 axis, which may be a new direction for glioblastoma therapy.
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Affiliation(s)
- Conggang Huang
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Lan Ma
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Faliang Duan
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Ruixue Li
- Department of Intensive Care Unit, The Sixth Hospital of Wuhan, Wuhan, Hubei, China
| | - Yanguo Zhang
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Yuan Wang
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Ming Luo
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Zhuqiang He
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
| | - Zhihua Luo
- Department of Neurosurgery, The First Hospital of Wuhan, Wuhan, Hubei, China
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22
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Yuan D, Zhu Y. Knockdown of LINC01224 Suppresses Colon Cancer Progression by Sponging miR-485-5p to Downregulate MCL1. Cancer Manag Res 2021; 13:7803-7812. [PMID: 34675675 PMCID: PMC8520417 DOI: 10.2147/cmar.s289024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/13/2020] [Indexed: 11/25/2022] Open
Abstract
Background Colon cancer (CC) is the most commonly occurring malignant tumor in the world. The current cancer treatment options have been less effective especially in the advanced stages of CC and patients have poor overall survival. Hence, there is an urgent need to explore novel molecular therapeutic targets for CC treatment. Methods qRT-PCR was performed to detect the levels of lncRNA LINC01224 (LINC01224), microRNA-485-5p (miR-485-5p), MCL1 in CC tumor tissues or cell lines. Two si-RNAs against LINC01224 were used to silence the level of LINC01224, and CCK-8 assay, colony formation assay, and transwell assay were performed to explore the role of LINC01224 on the proliferation, migration, and invasion of CC cell lines. Kaplan–Meier method was applied for evaluating the association between LINC01224 level and the overall survival of CC patients. Through bioinformatics analysis, we found that LINC01224 sponged miR-485-5p and consequently targeted MCL1. Dual-luciferase reporter assay, RNA pull-down assay, qRT-PCR, and Western blot assay were conducted for verification of the interactions among LINC01224, miR-485-5p, and MCL1. Furthermore, the role of LINC01224/miR-485-5p/MCL1 axis in CC progression was investigated by CCK-8 assay, colony formation assay, and transwell assay. Results LINC01224 was highly expressed in CC tumor tissues and CC cell lines, and its expression was associated with the overall survival of CC patients. The LINC01224-siRNAs (si-LINC01224) markedly suppressed the level of LINC01224 in CC cell lines (HT29 and SW480 cells) and consequently significantly suppressed the proliferation, migration, and invasion of the HT29 and SW480 cells. LINC01224 was verified to sponge miR-485-5p and consequently targeted MCL1. MiR-485-5p inhibitor or MCL1 overexpression (MCL1 OE) markedly restored the repressive effect of the si-LINC01224 pool on MCL1 expression level, as well as proliferation, migration, and invasion of HT29 and SW480 cells. Conclusion This study identified LINC01224/miR-485-5p/MCL1 axis as a novel molecular therapeutic target involved in CC progression.
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Affiliation(s)
- Danping Yuan
- Department of Colorectal Surgery, Ningbo First Hospital, Ningbo, 315010, Zhejiang, People's Republic of China
| | - Yanan Zhu
- Department of Emergency, Taizhou Hospital of Zhejiang Province, Linhai, 317000, Zhejiang, People's Republic of China
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23
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Jia Q, Xie B, Zhao Z, Huang L, Wei G, Ni T. Lung cancer cells expressing a shortened CDK16 3'UTR escape senescence through impaired miR-485-5p targeting. Mol Oncol 2021; 16:1347-1364. [PMID: 34687270 PMCID: PMC8936527 DOI: 10.1002/1878-0261.13125] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 09/27/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022] Open
Abstract
Inducing senescence in cancer cells is an emerging strategy for cancer therapy. The dysregulation and mutation of genes encoding cyclin‐dependent kinases (CDKs) have been implicated in various human cancers. However, whether CDK can induce cancer cell senescence remains poorly understood. We observed that CDK16 expression was high in multiple cancer types, including lung cancer, whereas various replicative senescence models displayed low CDK16 expression. CDK16 knockdown caused senescence‐associated phenotypes in lung cancer cell lines. Interestingly, the CDK16 3′ UTR was shortened in cancer and lengthened in senescence models, which was regulated by alternative polyadenylation (APA). The longer 3′UTR [using the distal polyA (pA) site] generated less protein than the shorter one (using the proximal pA site). Since microRNAs (miRNAs) usually bind to the 3′UTR of target genes to suppress their expression, we investigated whether miRNAs targeting the region between the shortened and longer 3′UTR are responsible for the reduced expression. We found that miR‐485‐5p targeted the 3′UTR between the distal and proximal pA site and caused senescence‐associated phenotypes by reducing protein production from the longer CDK16 transcript. Of note, CDK16 knockdown led to a reduced expression of MYC proto‐oncogene, bHLH transcription factor (MYC) and CD274 molecule (PD‐L1), which in turn enhanced the tumor‐suppressive effects of senescent cancer cells. The present study discovered that CDK16, whose expression is under the regulation of APA and miR‐485‐5p, is a potential target for prosenescence therapy for lung cancer.
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Affiliation(s)
- Qi Jia
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences and Huashan Hospital, Fudan University, Shanghai, China
| | - Baiyun Xie
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences and Huashan Hospital, Fudan University, Shanghai, China
| | - Zhaozhao Zhao
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences and Huashan Hospital, Fudan University, Shanghai, China
| | - Leihuan Huang
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences and Huashan Hospital, Fudan University, Shanghai, China
| | - Gang Wei
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences and Huashan Hospital, Fudan University, Shanghai, China
| | - Ting Ni
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences and Huashan Hospital, Fudan University, Shanghai, China
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24
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Liu R, Dai W, Wu A, Li Y. CircCDC45 promotes the malignant progression of glioblastoma by modulating the miR-485-5p/CSF-1 axis. BMC Cancer 2021; 21:1090. [PMID: 34627193 PMCID: PMC8501713 DOI: 10.1186/s12885-021-08803-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 09/22/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Glioblastoma (GBM) is characterized by progressive growth and metastasis. Numerous studies claim that the deregulation of circular RNAs (circRNAs) is associated with cancer progression. However, the role of circRNAs in GBM is largely limited. The purpose of this study was to investigate the functions of circCDC45 in GBM and provide a feasible functional mechanism to support its role. METHODS The expression of circCDC45, miR-485-5p and colony-stimulating factor 1 (CSF-1) mRNA was examined using quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was assessed using cell counting kit - 8 (CCK-8) assay and colony formation assay. Cell migration and cell invasion were monitored using transwell assay. The protein levels of proliferation-related markers and CSF-1 were determined using western blot. The target relationship was predicted using bioinformatics tools and validated using dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. Animal models were constructed to verify the role of circCDC45 in vivo. RESULTS The expression of circCDC45 and CSF-1 was elevated in GBM tissues and cells, while the expression of miR-485-5p was declined. Downregulation of circCDC45 or CSF-1 blocked GBM cell proliferation, invasion and migration as well as tumor growth in vivo. In mechanism, circCDC45 positively regulated the expression of CSF-1 by targeting miR-485-5p. Inhibition of miR-485-5p reversed the biological effects caused by circCDC45 downregulation in GBM cells. CONCLUSION CircCDC45 promoted the progression of GBM by mediating the miR-485-5p/CSF-1 axis, and circCDC45 might be a promising plasmatic biomarker for GBM diagnosis and treatment.
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Affiliation(s)
- Rongcai Liu
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
| | - Weimin Dai
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China.
| | - An Wu
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
| | - Yunping Li
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
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25
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Gu J, Dong L, Wang Y, Nie W, Liu W, Zhao JA. LINC01224 promotes colorectal cancer progression through targeting miR-485-5p/MYO6 axis. World J Surg Oncol 2021; 19:281. [PMID: 34535152 PMCID: PMC8449439 DOI: 10.1186/s12957-021-02389-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/31/2021] [Indexed: 12/31/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) are related to colorectal cancer (CRC) development. However, the role and mechanism of lncRNA LINC01224 in CRC development are largely unknown. Methods LINC01224, Yin Yang 1 (YY1), microRNA (miR)-485-5p, and myosins of class VI (MYO6) levels were examined using quantitative reverse transcription polymerase chain reaction and western blotting. Functional analyses were processed through CCK-8, colony formation, flow cytometry, transwell, and xenograft analyses. Dual-luciferase reporter, chromatin immunoprecipitation (ChIP), RNA immunoprecipitation, and pull-down assays were conducted to analyze the binding interaction. Results LINC01224 abundance was elevated in CRC tissue samples and cell lines. Elevated LINC01224 might indicate the lower 5-year overall survival in 52 CRC patients. LINC01224 was upregulated via the transcription factor YY1. LINC01224 knockdown restrained CRC cell proliferation, migration, and invasion and increased apoptosis. MiR-485-5p was sponged by LINC01224, and miR-485-5p downregulation relieved the influence of LINC01224 interference on CRC progression. MYO6 was targeted via miR-485-5p and regulated via LINC01224/miR-485-5p axis. MiR-485-5p overexpression suppressed CRC cell proliferation, migration, and invasion and facilitated apoptosis. MYO6 upregulation mitigated the role of miR-485-5p. LINC01224 knockdown decreased xenograft tumor growth. Conclusion YY1-induced LINC01224 regulates CRC development via modulating miR-485-5p/MYO6 axis. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-021-02389-x.
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Affiliation(s)
- Jingfeng Gu
- Department of General Surgery, the First Hospital of Hebei Medical University, No.89 Donggang Road, Shijiazhuang, Hebei, China
| | - Liang Dong
- Department of Medical Service, the First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yun Wang
- Department of Emergency, the First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wenjia Nie
- Department of Medical Service, the First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wencong Liu
- Department of Ultrasonography, the First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ji-An Zhao
- Department of General Surgery, the First Hospital of Hebei Medical University, No.89 Donggang Road, Shijiazhuang, Hebei, China.
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Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer-related deaths worldwide. Long non-coding RNAs (lncRNAs) have been increasingly reported to serve vital parts in malignancies including CRC. Although cancer susceptibility 21 (CASC21) has been uncovered to play a part in CRC, its mechanism still needs further explanation. Thus, our study aimed to further explore the influence and mechanism of CASC21 in CRC progression. Quantitative real-time RT-PCR and western blot were performed to detect gene expression; a series of functional assays were performed to investigate the effect of CASC21 on CRC cells; in vivo tumour growth was evaluated via the nude mice xenograft model. The results revealed that CASC21 facilitated CRC cell proliferation, migration, epithelial-mesenchymal transition (EMT) and stemness. In addition, CASC21 was co-expressed with and bound to transcription factor POU5F1B (POU class 5 homeobox 1B). CASC21 recruited POU5F1B to HGH1 promoter to activate the transcription of HGH1 homolog. Also, CASC21 served as a competitive endogenous RNA (ceRNA) to up-regulate HGH1 via endogenously sponging miR-485-5p. Moreover, HGH1 overexpression counteracted the suppression of CASC21 deficiency on CRC tumour growth. In summary, our study indicated that CASC21 enhanced the expression of HGH1 to promote the malignancy of CRC by recruiting POU5F1B and sponging miR-485-5p, suggesting a key role of CASC21 in CRC progression.
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Affiliation(s)
- Chenxin Zhang
- Department of General Surgery, The 983th Hospital of Joint Logistic Support Force of PLA, Tianjin, China.,Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jifu E
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Enda Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
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Xu S, Dong W, Shi Y. LncRNA PICSAR binds to miR-485-5p and activates TGF-β1/Smad to promote abnormal proliferation of hypertrophic scar fibroblasts (HSFs) and excessive deposition of extracellular matrix (ECM). Med Mol Morphol 2021. [PMID: 34255190 DOI: 10.1007/s00795-021-00296-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/13/2021] [Indexed: 10/20/2022]
Abstract
The purpose of this study is to explore whether LncRNA PICSAR binds to miR-485-5p and thereby activates TGF-β1/Smad signaling pathway, influencing the abnormal proliferation of fibroblasts and excessive deposition of ECM in hypertrophic scar formation. PICSAR and miR-485-5p expressions were detected by qPCR. Cell proliferation was examined by CCK-8. Protein expressions were determined by western blot. Immunofluorescence detected the Ki-67 expression. Dual-luciferase followed by immunoprecipitation was performed to verify the interaction between PICSAR and miR-485-5p. Interference with PICSAR inhibited the abnormal proliferation of hypertrophic scar fibroblasts (HSFs) and the excessive deposition of ECM. It was also confirmed in our study that MiR-485-5p is a direct target of PICSAR in HSFs. Additionally, inhibition of miR-485-5p reversed the effect of PICSAR knockdown in HSFs. LncRNA PICSAR binds to miR-485-5p and thereby activates TGF-β1/Smad signaling pathway, promoting the abnormal proliferation of fibroblasts and excessive deposition of ECM in hypertrophic scar formation.
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Yu J, Chen X, Li J, Wang F. CircRUNX1 functions as an oncogene in colorectal cancer by regulating circRUNX1/ miR-485-5p/SLC38A1 axis. Eur J Clin Invest 2021; 51:e13540. [PMID: 33769559 DOI: 10.1111/eci.13540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/09/2021] [Accepted: 03/09/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) have emerged as vital regulators in human cancers, including colorectal cancer (CRC). In this study, we aimed to explore the roles of circRUNX1 in CRC. METHODS The levels of circRUNX1, RUNX1 mRNA, solute carrier family 38 member 1 (SLC38A1) mRNA and microRNA-485-5p (miR-485-5p) were determined by quantitative real-time polymerase chain reaction (qRT-PCR) analysis. The protein level of SLC38A1 was measured by Western blot assay. Cell colony formation, migration, invasion and apoptosis were assessed by colony formation assay, wound-healing assay, Transwell assay and flow cytometry analysis, respectively. The interaction between miR-485-5p and circRUNX1 or SLC38A1 was verified by dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. The levels of extracellular glutamine, intracellular glutamate and α-ketoglutarate (α-KG) were measured with specific kits. The functional role of circRUNX1 in CRC development in vivo was explored by murine xenograft model assay. RESULTS CircRUNX1 was upregulated in CRC tissues and cells compared with normal tissues and cells. CircRUNX1 deficiency restrained CRC cell colony formation, migration, invasion and glutaminolysis and induced apoptosis in vitro as well as blocked tumour growth in vivo. CircRUNX1 directly sponged miR-485-5p, which negatively modulated SLC38A1 expression in CRC cells. The effects of circRUNX1 knockdown on CRC cell colony formation, migration, invasion, apoptosis and glutaminolysis were reversed by miR-485-5p inhibition. Moreover, miR-485-5p overexpression repressed the malignant behaviours of CRC cells, with SLC38A1 elevation overturned the impacts. CONCLUSION CircRUNX1 promoted CRC cell growth, metastasis and glutamine metabolism and repressed apoptosis by elevating SLC38A1 through sponging miR-485-5p, which might provide a novel target for CRC treatment.
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Affiliation(s)
- Juan Yu
- Department of Endoscopic Diagnosis and Treatment Center, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoguang Chen
- Department of Endoscopic Diagnosis and Treatment Center, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Li
- Department of Endoscopic Diagnosis and Treatment Center, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Furang Wang
- Department of Endoscopic Diagnosis and Treatment Center, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
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Guo X, Zheng J, Yu MJ, Piao HZ, Zhao HY. Long noncoding RNA SNHG3 promotes glioma tumorigenesis by sponging miR-485-5p to upregulate LMX1B expression. Kaohsiung J Med Sci 2021; 37:851-862. [PMID: 34153159 DOI: 10.1002/kjm2.12411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 04/07/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
LIM homeobox transcription factor 1-beta (LMX1B) has recently been found to be highly expressed in advanced gliomas and is associated with poor survival. However, the regulatory molecular mechanism of LMX1B expression in gliomas remains unclear. In this study, bioinformatics analysis showed that miR-485-5p may be the potential upstream regulator of LMX1B, and long noncoding RNA (lncRNA) small nucleolar RNA host gene 3 (SNHG3) may function as a competitive endogenous RNA to sponge miR-485-5p. In addition, the expression of SNHG3 and LMX1B in advanced glioma tissues was significantly upregulated, while the expression of miR-485-5p was significantly downregulated. SNHG3 overexpression reduced the expression of miR-485-5p; increased the expression of LMX1B; and promoted the proliferation, migration, and invasion of glioma cells. In contrast, miR-485-5p overexpression reduced the expression of LMX1B and inhibited cell proliferation, migration, and invasion. The luciferase reporter assay and RNA immunoprecipitation assay further confirmed the interaction between SNHG3 and miR-485-5p and between miR-485-5p and LMX1B. In addition, subcutaneous and orthotropic xenograft models confirmed that lncRNA SNHG3 silencing or miR-485-5p overexpression significantly reduced the growth of glioma xenografts and prolonged survival time. These results indicate that lncRNA SNHG3 can regulate the expression of LMX1B by sponging miR-485-5p, thereby promoting the proliferation, migration, and invasion of glioma cells. This study provides the first evidence that the SNHG3/miR-485-5p/LMX1B axis is involved in glioma tumorigenesis and highlights the potential of SNHG3 and miR-485-5p as therapeutic targets for glioma.
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Affiliation(s)
- Xu Guo
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ming-Jun Yu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Hao-Zhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Hong-Yu Zhao
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
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Yin J, Chen H, Li S, Zhang S, Guo X. Blockage of miR-485-5p on Cortical Neuronal Apoptosis Induced by Oxygen and Glucose Deprivation/Reoxygenation Through Inactivating MAPK Pathway. Neuromolecular Med 2021; 23:256-266. [PMID: 32719988 DOI: 10.1007/s12017-020-08605-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023]
Abstract
This study is designed to explore the role of miR-485-5p in hypoxia/reoxygenation-induced neuronal injury in primary rat cortical neurons. Hypoxia/reoxygenation model was established through oxygen and glucose deprivation/reoxygenation (OGD/R). RN-c cells were transfected with miR-485-5p mimics, miR-485-5p inhibitors, si-SOX6, pCNDA3.1-SOX6 or miR-485-5p + pCDNA3.1-SOX6, in which cell viability, apoptosis, lactate dehydrogenase (LDH) release rate were assessed. Western blot detected the protein expressions of apoptotic-related proteins (caspase3, Bcl-2, Bax) and the phosphorylated level of ERK1/2. The potential binding sites between miR-485-5p and SOX6 were predicted by STARBASE and identified using dual luciferase reporter gene assay. OGD/R-treated RN-c cell presented increases in apoptosis and LDH release rate as well as a decrease in cell viability. miR-485-5p was downregulated while SOX6 was upregulated in OGD/R-treated RN-c cells. Overexpression of miR-485-5p or SOX6 knockdown rescued cell viability and Bcl-2 expression, while attenuated apoptosis, LDH release rate, expression of SOX6 and the phosphorylated level of ERK1/2. Consistently, miR-485-5p inhibition led to the reverse pattern. Co-transfection of miR-485-5p and SOX6 reversed the protective effect of miR-485-5p on OGD/R-induced neuronal apoptosis. miR-485-5p can directly target SOX6. Together, miR-485-5p inhibited SOX6 to alleviate OGD/R-induced apoptosis. Collectively, miR-485-5p protects primary cortical neurons against hypoxia injury through downregulating SOX6 and inhibiting MAPK pathway.
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Affiliation(s)
- Jiangliu Yin
- Department of Neurosurgery, Changsha Central Hospital of University of South China, Changsha, 410005, Hunan, People's Republic of China
| | - Huan Chen
- Hunan Provincial Center for Disease Prevent and Control, Changsha, 410006, Hunan, People's Republic of China
| | - Suonan Li
- Department of Neurosurgery, Changsha Central Hospital of University of South China, Changsha, 410005, Hunan, People's Republic of China
| | - Shuai Zhang
- Department of Neurosurgery, Changsha Central Hospital of University of South China, Changsha, 410005, Hunan, People's Republic of China
| | - Xieli Guo
- Department of Neurosurgery, Jinjiang Municipal Hospital of Quanzhou Medical College, No. 392, Xinhua Road, Meiling Street, Quanzhou, 362200, Fujian, People's Republic of China.
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Liu Z, Yang S, Chen X, Dong S, Zhou S, Xu S. LncRNA LINC00467 acted as an oncogene in esophageal squamous cell carcinoma by accelerating cell proliferation and preventing cell apoptosis via the miR-485-5p/DPAGT1 axis. J Gastroenterol Hepatol 2021; 36:721-730. [PMID: 32720371 DOI: 10.1111/jgh.15201] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/15/2020] [Accepted: 07/23/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Esophageal carcinoma has been regarded as one of the top 10 common malignancies globally. Esophageal squamous cell carcinoma (ESCC) is an important subtype of esophageal carcinoma with approximately 20% survival rate. Long noncoding RNAs were documented to regulate the occurrence or progression of several tumors. However, neither the biological role nor the molecular mechanism of LINC00467 has been explored. This research is aimed to investigating the regulatory mechanism of LINC00467 in ESCC. METHODS In this study, a series of experiments including reverse transcription-quantitative polymerase chain reaction, Cell Counting Kit-8, luciferase reporter, western blot, and RNA immunoprecipitation were designed and conducted to explore the potential function and mechanism of LINC00467 in ESCC. RESULTS According to experimental results, we found out upregulated LINC00467 improved cell proliferation, but hindered cell apoptosis. In mechanism, miR-485-5p was predicted, screened out, and validated to combine with LINC00467, which displayed lower expression in ESCC. Additionally, miR-485-5p negatively regulated and directly targeted DPAGT1. Rescue assays suggested that DPAGT1 amplification was able to recover the influence of LINC00467 deficiency on cell proliferation and apoptosis. Furthermore, knockdown of LINC00467 suppressed tumor growth in vivo. CONCLUSION We proved that LINC00467 acted as an oncogene in ESCC by accelerating cell proliferation and preventing cell apoptosis via miR-485-5p/DPAGT1 axis. This may provide a potential diagnostic marker for ESCC treatment.
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Affiliation(s)
- Zhenghua Liu
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shize Yang
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xitao Chen
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Siyuan Dong
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Siyu Zhou
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shun Xu
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
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Meng X, Tian H, Guo W, Wang Z. circ_0082375 promotes the progression of glioma by regulating Wnt7B. Transl Neurosci 2021; 12:456-468. [PMID: 34868669 PMCID: PMC8605768 DOI: 10.1515/tnsci-2020-0181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 12/16/2022] Open
Abstract
Circular RNAs contribute to the progression of glioma. However, the biological role and underlying mechanism of circ_0082375 in glioma remain unclear. Quantitative real-time PCR and Western blot assay were used to evaluate the expression levels of circ_0082375, microRNA-485-5p, and Wnt family member 7B (Wnt7B). The overall survival of glioma patients was estimated by the Kaplan–Meier curve. Cell proliferation, apoptosis, invasion, and migration were detected by cell counting kit-8, 5-ethynyl-2 -deoxyuridine (EdU) staining, flow cytometry, and transwell assays, respectively. Glucose level and lactate production were determined using glucose and lactate assay kits. In vitro angiogenesis assay was used to evaluate the angiogenesis of glioma cells. The interaction between microRNA (miR)-485-5p and circ_0082375 or Wnt family member 7B (Wnt7B) was verified by dual-luciferase reporter and RNA immunoprecipitation assays. A xenograft model was used to verify the function of circ_0082375 in vivo. circ_0082375 was upregulated in glioma tissues, and it was closely related to the prognosis of glioma patients. circ_0082375 knockdown suppressed cell proliferation, migration, invasion, angiogenesis, glycolysis, and epithelial-mesenchymal transition (EMT), and promoted cell apoptosis in glioma cells. irc_0082375 was a sponge of miR-485-5p, which directly targeted Wnt7B. Knockdown of circ_0082375 inhibited the malignancy, angiogenesis, and glycolysis of glioma cells in vitro by sponging miR-485-5p. Besides, circ_0082375 knockdown hampered the growth of glioma growth by regulating the miR-485-5p/Wnt7B axis in vivo. Altogether, circ_0082375 regulated miR-485-5p/Wnt7B axis to promote the malignancy, angiogenesis, and glycolysis of glioma cells, thereby contributing to the progression of glioma.
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Affiliation(s)
- Xianbing Meng
- Department of Neurosurgery, Qilu Hospital of Shandong University, No. 758, Hefei Road, Shibei District, Qingdao City, Shandong Province, 266035, China.,Department of Neurosurgery, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, 271000, China
| | - Hailong Tian
- Department of Neurosurgery, Qilu Hospital of Shandong University, No. 758, Hefei Road, Shibei District, Qingdao City, Shandong Province, 266035, China
| | - Wenqiang Guo
- Department of Neurosurgery, Qilu Hospital of Shandong University, No. 758, Hefei Road, Shibei District, Qingdao City, Shandong Province, 266035, China
| | - Zhigang Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University, No. 758, Hefei Road, Shibei District, Qingdao City, Shandong Province, 266035, China
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He C, Su C, Zhang W, Wan Q. miR-485-5p alleviates Alzheimer's disease progression by targeting PACS1. Transl Neurosci 2021; 12:335-345. [PMID: 34594577 PMCID: PMC8442568 DOI: 10.1515/tnsci-2020-0177] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/14/2021] [Accepted: 05/24/2021] [Indexed: 12/14/2022] Open
Abstract
Alzheimer's disease (AD) is a common dementia and a heterogeneous disease. Previous research has validated that microRNAs (miRNAs) are pivotal regulators in the initiation and development of tremendous diseases including AD. MicroRNA-485-5p (miR-485-5p) was reported to be an important participant implicated in several neurological diseases, but its role in AD still needs to be further investigated. In this research, we explored the biological function of miR-485-5p in AD. RT-qPCR revealed that miR-485-5p expression was downregulated in the hippocampus of APP/PS1 mice. Additionally, miR-485-5p overexpression facilitated the learning and memory capabilities of APP/PS1 mice according to Morris water maze test, fear conditioning test, and immunofluorescent staining. Moreover, CCK-8 assay, flow cytometric analysis, and western blot analysis suggested that miR-485-5p overexpression promoted pericyte viability and prohibited pericyte apoptosis in APP/PS1 mice. Mechanistically, miR-485-5p directly targeted PACS1 in pericytes, as shown in a luciferase reporter assay. In rescue assays, PACS1 overexpression countervailed the effect of miR-485-5p overexpression on pericyte viability and apoptosis. In conclusion, miR-485-5p ameliorates AD progression by targeting PACS1.
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Affiliation(s)
- Chuan He
- Department of Rehabilitation Medicine, Jiangsu-Shengze Hospital affiliated to Nanjing Medical University, Suzhou 215228, Jiangsu, China
| | - Caixia Su
- Department of Rehabilitation Medicine, Jiangsu-Shengze Hospital affiliated to Nanjing Medical University, Suzhou 215228, Jiangsu, China
| | - Wentong Zhang
- Department of Rehabilitation Medicine, Jiangsu-Shengze Hospital affiliated to Nanjing Medical University, Suzhou 215228, Jiangsu, China
| | - Qi Wan
- Department of Neurological Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 21000, Jiangsu, China
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Zhang W, Han L, Xing P, Liu B, Sun Z, Zhou W, Dong J. LncRNA RHPN1-AS1 accelerates proliferation, migration, and invasion via regulating miR-485-5p/BSG axis in hepatocellular carcinoma. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:2543-2551. [PMID: 32435875 DOI: 10.1007/s00210-020-01889-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/28/2020] [Indexed: 12/24/2022]
Abstract
It is reported that long noncoding RNA RHPN1-AS1 (lncRNA RHPN1-AS1) functions as an oncogene among multiple types of cancers; however, the effect of lncRNA RHPN1-AS1 in hepatocellular carcinoma (HCC) is left to be investigated. The main purpose of this work was to study the effects of lncRNA RHPN1-AS1/miR-485-5p system on proliferation, migration, and invasion in HCC and future investigate the latent mechanisms. Our work found that lncRNA RHPN1-AS1 was observably up-regulated in HCC tissues and cell lines, especially HCCLM3 and SMMC-7721 cells. LncRNA RHPN1-AS1 knockdown decreased the capacity of proliferation, invasion, and migration in HCCLM3 and SMMC-7721 cells, which could be crippled by miR-485-5p inhibitor. Besides, the expression of basigin (BSG) was decreased after lncRNA RHPN1-AS1 silence, indicating the function of lncRNA RHPN1-AS1/miR-485-5p/BSG axis in HCC progression. Our study opens novel insights to help understand the mechanisms of lncRNA RHPN1-AS1/miR-485-5p/BSG axis in HCC progression, which may provide a new therapeutic target for HCC treatment.
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Affiliation(s)
- Wei Zhang
- Department of Hepatobiliary Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China
- Post-doctoral Station, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Lei Han
- Department of Hepatobiliary Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Peng Xing
- Department of Hepatobiliary Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Bailiang Liu
- Department of Hepatobiliary Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Zhongqi Sun
- Department of Hepatobiliary Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Wenping Zhou
- Department of Hepatobiliary Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, 110016, China.
| | - Jiahong Dong
- Department of Hepatobiliary and Pancreas Surgery, Beijing Tsinghua Changgung Hospital (BTCH), School of Clinical Medicine, Tsinghua University, Beijing, China.
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Xu M, Wu R, Zhang L, Zhu HY, Xu GY, Qian W, Zhang PA. Decreased MiR-485-5p Contributes to Inflammatory Pain Through Post-Transcriptional Upregulation of ASIC1 in Rat Dorsal Root Ganglion. J Pain Res 2020; 13:3013-3022. [PMID: 33239909 PMCID: PMC7682601 DOI: 10.2147/jpr.s279902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/22/2020] [Indexed: 12/31/2022] Open
Abstract
Background Inflammatory pain is the most common type of pain treated clinically. However, the currently available treatments for inflammatory pain have limited effects and can cause severe side effects. The aim of this study is to describe the effect of miRNA-485-5p on osteoarthritis-related inflammatory pain. Methods Paw withdrawal threshold (PWT) of rats was measured by von Frey filaments. The expressions of miRNA-485-5p and acid-sensing ion channel 1 (ASIC1) in the dorsal root ganglion (DRG) were measured with real-time quantitative PCR and Western blotting analysis. Fluorescent in situ hybridization and fluorescent immunohistochemistry were employed to detect expression of miRNA-485-5p, acid-sensing ion channelASIC1 and co-location of miRNA-485-5p with ASIC1. Results The PWT of rats was significantly reduced after complete Freund's adjuvant (CFA) injection. The miRNA-485-5p expression level clearly decreased while the ASIC1 expression level was upregulated in the L4-6 dorsal root ganglion (DRG) of CFA rats. MiRNA-485-5p and ASIC1 were co-expressed in the same DRG cells of CFA rats. Amiloride, an inhibitor of ASIC1, clearly increased the PWT of CFA rats. Further, miRNA-485-5p agomir reversed the upregulation of ASICI1 and alleviated CFA-induced mechanical hypersensitivity of CFA rats. Conclusion These results suggest that reduced expression of miRNA-485-5p contributes to inflammatory pain through upregulating ASIC1 expression, implying a promising strategy for pain therapy.
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Affiliation(s)
- Meijie Xu
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China
| | - Rui Wu
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China.,Center for Translational Pain Medicine, Institute of Neuroscience, Soochow University, Suzhou 215123, People's Republic of China
| | - Ling Zhang
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China
| | - Hong-Yan Zhu
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China
| | - Guang-Yin Xu
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China.,Center for Translational Pain Medicine, Institute of Neuroscience, Soochow University, Suzhou 215123, People's Republic of China
| | - Wenxia Qian
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China
| | - Ping-An Zhang
- Department of Respiratory and Critical Care Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang 215600, People's Republic of China.,Center for Translational Pain Medicine, Institute of Neuroscience, Soochow University, Suzhou 215123, People's Republic of China
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Hu Y, Zhang X, Zai HY, Jiang W, Xiao L, Zhu Q. lncRNA DUXAP8 Facilitates Multiple Malignant Phenotypes and Resistance to PARP Inhibitor in HCC via Upregulating FOXM1. Mol Ther Oncolytics 2020; 19:308-322. [PMID: 33313387 PMCID: PMC7701012 DOI: 10.1016/j.omto.2020.10.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 10/17/2020] [Indexed: 02/08/2023]
Abstract
In this study, we examined the clinical significance and molecular mechanisms of a long non-coding RNA (lncRNA), double homeobox A pseudogene 8 (DUXAP8) in hepatocellular carcinoma (HCC). DUXAP8 expression was compared using quantitative real-time PCR in HCC versus adjacent tissues and in HCC cell lines versus normal hepatic epithelial cells. The correlations between DUXAP8 level and clinicopathological features were analyzed. Assays including MTT, colony-forming analysis, Transwell assay, western blot, xenograft formation, experimental metastasis, luciferase assay, RNA pull-down, and RNA immunoprecipitation were used to examine DUXAP8-induced malignant phenotypes, its regulation on forkhead box protein M1 (FOXM1), and the importance of FOXM1 in mediating DUXAP8 phenotypes. Our results showed that DUXAP8 was significantly upregulated in HCC tissues or cell lines associated with tumors of advanced grades, tumors that were positive for lymph node metastasis, and patients with poor overall survival. DUAXP8 was essential in maintaining multiple malignant phenotypes (including resistance to olaparib) both in vitro and in vivo. Mechanistically, DUXAP8 upregulated FOXM1 expression by sponging miR-485-5p and interacting with the RNA-binding protein Fused in Sarcoma (FUS). Functionally, FOXM1 essentially mediated the oncogenic phenotypes of DUXAP8. Collectively, DUXAP8 acts through two distinct mechanisms to upregulate FOXM1 and becomes a pleotropic oncogenic lncRNA in HCC.
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Affiliation(s)
- Yu Hu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Xian Zhang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Hong-Yan Zai
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Wei Jiang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Liang Xiao
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Qin Zhu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
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Liu H, Hu G, Wang Z, Liu Q, Zhang J, Chen Y, Huang Y, Xue W, Xu Y, Zhai W. circPTCH1 promotes invasion and metastasis in renal cell carcinoma via regulating miR-485-5p/MMP14 axis. Am J Cancer Res 2020; 10:10791-10807. [PMID: 32929380 PMCID: PMC7482820 DOI: 10.7150/thno.47239] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Circular RNAs (circRNAs) are a new class of non-coding RNAs (ncRNAs) that are derived from exons or introns by special selective shearing. circRNAs have been shown to play critical roles in various human cancers. However, their roles in renal cell carcinoma (RCC) and the underlying mechanisms remain largely unknown. Methods: A novel circRNA-circPTCH1, was identified from a microarray analysis of five paired RCC tissues. Then, we validated its expression and characterization through qRT-PCR, gel electrophoresis, RNase R digestion assays and Sanger sequencing. Functional experiments were performed to determine the effect of circPTCH1 on RCC progression both in vitro and in vivo. The interactions between circPTCH1 and miR-485-5p were clarified by RNA pull-down, luciferase reporter and RNA immunoprecipitation (RIP) assays. Results: We observed that circPTCH1 was up-regulated in RCC cell lines and tumor samples, and higher levels of circPTCH1 were significantly correlated with worse patient survival, advanced Fuhrman grade and greater risk of metastases. Elevated circPTCH1 expression led to increased migration and invasion of RCC cells both in vitro and in vivo whereas silencing circPTCH1 decreased migration and invasion and impeded the epithelial-mesenchymal transition (EMT) of RCC cells. Mechanistically, we elucidated that circPTCH1 could directly bind miR-485-5p and subsequently suppress expression of the target gene MMP14. Conclusion: circPTCH1 promotes RCC metastasis via the miR-485-5p/MMP14 axis and activation of the EMT process. Targeting circPTCH1 may represent a promising therapeutic strategy for metastatic RCC.
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Wang D, Zhou X, Yin J, Zhou Y. Lnc-PICSAR contributes to cisplatin resistance by miR-485-5p/REV3L axis in cutaneous squamous cell carcinoma. Open Life Sci 2020; 15:488-500. [PMID: 33817237 PMCID: PMC7874590 DOI: 10.1515/biol-2020-0049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 12/22/2022] Open
Abstract
Background Dysregulation of long noncoding RNAs (lncRNAs) is associated with drug resistance in multiple cancers. We explored the roles of lncRNA p38 inhibited cutaneous squamous cell carcinoma-associated lincRNA (PICSAR) in cisplatin (DDP) resistance of cutaneous squamous cell carcinoma (CSCC). Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to measure the expression of lnc-PICSAR, miR-485-5p and reversionless 3-like (REV3L) mRNA. The cell counting kit-8 (CCK-8) assay was conducted to evaluate DDP resistance and cell viability. The transwell assay was performed to determine cell migration and invasion. Western blot assay and immunohistochemistry (IHC) staining assay were carried out to measure protein levels. The dual-luciferase reporter assay was used to investigate the association between miR-485-5p and lnc-PICSAR or REV3L. Murine xenograft model was constructed to explore the function of lnc-PICSAR in vivo. The morphology of exosomes was analyzed by transmission electron microscopy (TEM) and nanoparticle tracking analysis (NTA). Results Lnc-PICSAR was elevated in DDP-resistant CSCC cells. Lnc-PICSAR silencing suppressed cell viability, DDP resistance, migration and invasion in DDP-resistant CSCC cells. MiR-485-5p acted as a target of lnc-PICSAR, and miR-485-5p inhibition reversed the impacts of lnc-PICSAR silencing on DDP resistance and cell progression in DDP-resistant CSCC cells. Lnc-PICSAR promoted REV3L expression via sponging miR-485-5p. Moreover, REV3L overexpression overturned the effects of lnc-PICSAR on cell progression and DDP resistance. Lnc-PICSAR knockdown suppressed DDP resistance in vivo. In addition, lnc-PICSAR was increased in the exosomes derived from CSCC patients’ serum and CSCC cells. Conclusion Lnc-PICSAR enhanced DDP resistance via miR-485-5p/REV3L axis in DDP-resistant CSCC cells. Besides, exosome-mediated lnc-PICSAR might be involved in the regulation of drug resistance in CSCC.
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Affiliation(s)
- Dan Wang
- Plastic Surgery Center, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214000, China
| | - Xiaoqiang Zhou
- Department of Dermatology, Medical College of Shaoguan University, Shaoguan, 512026, China
| | - Jing Yin
- Department of Interventional Vascular, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214000, China
| | - Yang Zhou
- Department of Dermatology, Yancheng First People's Hospital, Jiangsu Province, No.166 yulong west road, Yancheng, Jiangsu, 224001, China
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Cheng R, Lu X, Xu C, Zhang F, Zhang G. SNHG11 contributes to NSCLC cell growth and migration by targeting miR-485-5p/BSG axis. Biomed Pharmacother 2020; 128:110324. [PMID: 32544782 DOI: 10.1016/j.biopha.2020.110324] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 01/20/2023] Open
Abstract
Accumulating studies implied that long noncoding RNAs (lncRNAs) act as essential factors in regulating diverse biological behaviors of cancers. Small nucleolar RNA host gene 11 (SNHG11) has been reported as for its oncogenic properties in several cancer types. However, it is unclear whether SNHG11 exerts functions in non-small cell lung cancer (NSCLC) remains unclear. The aim of this study was to inspect the role and regulatory mechanism of SNHG11 in NSCLC. The expression of SNHG11 in NSCLC cells was analyzed by qRT-PCR. Functional experiments were carried out to determine the effects of SNHG11 silence on the biological behaviors of NSCLC cells, including growth, migration and epithelial-mesenchymal transition. The inhibition of above functions was observed after SNHG11 was silenced. Subcellular fractionation and FISH assays were performed to detect the cellular distribution of SNHG11. Moreover, SNHG11 was found to be a sponge of miR-485-5p that could directly target to Basigin (BSG) mRNA. The interaction between SNHG11 and miR-485-5p as well as between miR-485-5p and BSG was proven by RNA pull down and luciferase reporter assays. Restoration assay confirmed the involvement of miR-485-5p and BSG in SNHG11-mediated NSCLC cellular functions. Conclusively, SNHG11 was overexpressed in NSCLC and functioned as a miR-485-5p sponge to up-regulate BSG.
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Affiliation(s)
- Ruirui Cheng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Xinhua Lu
- Luoyang Orthopedic-Traumatological Hospital of Henan Province (Henan Province Orthopedic Hospital), No.100 Yongping Road, Zhengzhou, 450000, Henan, China
| | - Chenyang Xu
- Luoyang Orthopedic-Traumatological Hospital of Henan Province (Henan Province Orthopedic Hospital), No.100 Yongping Road, Zhengzhou, 450000, Henan, China
| | - Furui Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Guojun Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China.
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Tsai CH, Liu SC, Chung WH, Wang SW, Wu MH, Tang CH. Visfatin Increases VEGF-dependent Angiogenesis of Endothelial Progenitor Cells during Osteoarthritis Progression. Cells 2020; 9:cells9051315. [PMID: 32466159 PMCID: PMC7291153 DOI: 10.3390/cells9051315] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/15/2020] [Accepted: 05/22/2020] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) pannus contains a network of neovascularization that is formed and maintained by angiogenesis, which is promoted by vascular endothelial growth factor (VEGF). Bone marrow-derived endothelial progenitor cells (EPCs) are involved in VEGF-induced vessel formation in OA. The adipokine visfatin stimulates the release of inflammatory cytokines during OA progression. In this study, we found significantly higher visfatin and VEGF serum concentrations in patients with OA compared with healthy controls. We describe how visfatin enhanced VEGF expression in human OA synovial fibroblasts (OASFs) and facilitated EPC migration and tube formation. Treatment of OASFs with PI3K and Akt inhibitors or siRNAs attenuated the effects of visfatin on VEGF synthesis and EPC angiogenesis. We also describe how miR-485-5p negatively regulated visfatin-induced promotion of VEGF expression and EPC angiogenesis. In our OA rat model, visfatin shRNA was capable of inhibiting visfatin and rescuing EPC angiogenesis and pathologic changes. We detail how visfatin affected VEGF expression and EPC angiogenesis in OASFs by inhibiting miR-485-5p synthesis through the PI3K and Akt signaling pathways.
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Affiliation(s)
- Chun-Hao Tsai
- Department of Sports Medicine, College of Health Care, China Medical University, Taichung 404, Taiwan;
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 404, Taiwan
| | - Shan-Chi Liu
- Department of Medical Education and Research, China Medical University Beigang Hospital, Yunlin 651, Taiwan;
| | - Wen-Hui Chung
- Department of Pharmacology, School of Medicine, China Medical University, Taichung 404, Taiwan;
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan;
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Min-Huan Wu
- Physical Education Office, Tunghai University, Taichung 407, Taiwan
- Sports Recreation and Health Management Continuing Studies, Tunghai University, Taichung 807, Taiwan
- Correspondence: (M.-H.W.); (C.-H.T.)
| | - Chih-Hsin Tang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung 404, Taiwan;
- Chinese Medicine Research Center, China Medical University, Taichung 404, Taiwan
- Department of Biotechnology, College of Health Science, Asia University, Taichung 41354, Taiwan
- Correspondence: (M.-H.W.); (C.-H.T.)
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Liu J, Zhang J, Wang Z, Xi J, Bai L, Zhang Y. Knockdown of circAPLP2 Inhibits Progression of Colorectal Cancer by Regulating miR-485-5p/FOXK1 Axis. Cancer Biother Radiopharm 2020; 36:737-752. [PMID: 32343603 DOI: 10.1089/cbr.2019.3310] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: Circular RNAs (circRNAs) have recently been reported to play essential roles in the progression of various cancers, including colorectal cancer (CRC). However, the roles of circRNA amyloid precursor-like protein 2 (circAPLP2) in CRC and its underlying mechanism have not been investigated. Materials and Methods: The expression levels of circAPLP2, microRNA-485-5p (miR-485-5p), and forkhead-box K1 (FOXK1) were determined by quantitative real-time polymerase chain reaction. Cell proliferation, apoptosis, migration, and invasion were assessed by methylthiazolyldiphenyl-tetrazolium bromide assay, flow cytometry, and transwell assay, respectively. Western blot assay was performed to measure the protein levels of proliferating cell nuclear antigen, Bcl-2, Bax, vimentin, E-cadherin, fibronectin, and FOXK1. The interaction between miR-485-5p and circAPLP2 or FOXK1 was predicted by starBase and verified by dual-luciferase reporter assay. A xenograft tumor model was established to confirm the functions of circAPLP2 in vivo. The lactate production was measured using lactate assay kit. Results: circAPLP2 expression was enhanced in CRC tissues and cells. circAPLP2 knockdown or miR-485-5p overexpression suppressed cell proliferation, migration, and invasion, whereas it promoted apoptosis in CRC cells, which was reversed by upregulating FOXK1. Moreover, miR-485-5p could directly bind to circAPLP2 and its downregulation reversed the suppressive effect of circAPLP2 knockdown on progression of CRC cells. In addition, FOXK1 was a downstream target of miR-485-5p. Furthermore, circAPLP2 modulated FOXK1 expression by sponging miR-485-5p in CRC cells. Besides, interference of circAPLP2 suppressed tumor growth in vivo and inhibited glycolysis in vitro by upregulating miR-485-5p and downregulating FOXK1. Conclusions: circAPLP2 knockdown inhibited CRC progression through regulating miR-485-5p/FOXK1 axis, providing a novel avenue for treatment of CRC.
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Affiliation(s)
- Jinglong Liu
- Department of Digestive, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Jian Zhang
- Intensive Care Unit, Hejin People's Hospital, Hejin, China
| | - Zhifeng Wang
- Department of Digestive Endoscopy and Shanxi Provincial People's Hospital, Taiyuan, China
| | - Jingjing Xi
- Department of Oral Surgery, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Lixia Bai
- Department of Digestive, Yuanping First People's Hospital, Yuanping, China
| | - Yanxia Zhang
- Inpatient Area III for Department of Gastroenterology, the Fifth People's Hospital of Datong, Datong, China
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Qiao HF, Liu YL, You J, Zheng YL, Chen LP, Lu XY, Du L, Shan F, Liu MH. G-5555 synergized miR-485-5p to alleviate cisplatin resistance in ovarian cancer cells via Pi3k/Akt signaling pathway. J Reprod Immunol 2020; 140:103129. [PMID: 32334286 DOI: 10.1016/j.jri.2020.103129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/29/2020] [Accepted: 04/06/2020] [Indexed: 10/24/2022]
Abstract
The present study was meant for the discovery of the underlying functions of miR-485-5p in ovarian cancer concerning cisplatin resistance in vitro. RT-qPCR assessed the miR-485-5p expression in ovarian cancer cell lines, normal cells and cisplatin-resistant Cell line OVCA433-CR. After OVCA433-CR treated with 0,3,5umol/L cisplatin, miR-485-5p expressions were determined. MTT observed the cell cytotoxicity in OVCA433-CR after regulation of miR-485-5p. Targets can predicted the putative binding between miR-485-5p and PAK1 and Luciferase Assay verified this. RT-qPCR decided the inhibitory effect in between. MTT tested the cytotoxicity in different combinations of miR-485-5p and PAK1. Western Blot tested the phosphorylation of Pi3k and Akt in response to miR-485-5p and PAK1 interplay. We evaluated the role of Pi3k/Akt signaling in regulation of miR-485-5p and cisplatin resistance with Wortmannin. miR-485-5p was lower expressed in ovarian cancer cells than normal ones and even lower in OVCA433-CR than OVCA433. As the cisplatin concerntration increased, miR-485-5p decreased. miR-485-5p mimics induced lower cisplatin resistance while miR-485-5p inhibitor caused higher resistance. PAK1 targeted miR-485-5p and inhibited miR-485-5p. PAK1 inhibitor helped to lower the resistance to cisplatin caused by miR-485-5p upregulation. miR-485-5p mimics silenced Pi3k/Akt signaling and PAK1 inhibitor aggravated the silencing. Inhibition of Pi3k/Akt signaling increased miR-485-5p, thereby decreasing the cisplatin-resistance in OVCA433-CR. miR-485-5p decreased cisplatin resistance in ovarian cancer cells via Pi3k/Akt signaling, suggesting that miR-485-5p upregulation might alleviate the cisplatin resistance in ovarian patients.
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Affiliation(s)
- Hai-Feng Qiao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Ying-Lei Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Jun You
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Yan-Li Zheng
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Li-Ping Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Xiao-Yan Lu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Lei Du
- Department of Medical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, China.
| | - Feng Shan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China.
| | - Man-Hua Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, 226001, China.
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Zhang C, Li Y, Zhao W, Liu G, Yang Q. Circ-PGAM1 promotes malignant progression of epithelial ovarian cancer through regulation of the miR-542-3p/CDC5L/PEAK1 pathway. Cancer Med 2020; 9:3500-3521. [PMID: 32167655 PMCID: PMC7221433 DOI: 10.1002/cam4.2929] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/06/2020] [Accepted: 02/02/2020] [Indexed: 12/14/2022] Open
Abstract
Background Epithelial ovarian cancer (EOC) is the most common ovarian malignant cancer. Circular RNA is a type of endogenous noncoding RNA and is considered as a novel regulatory molecule in the development and progression of tumors. This study investigated the expression and functions of a circular RNA, circular‐phosphoglycerate mutase 1 (circ‐PGAM1), in EOC tissues and cells. Methods The expression of circ‐PGAM1 and miR‐542‐3p in EOC was analyzed using quantitative RT‐PCR. Immunohistochemistry and western blot were performed to confirm the localization and expression of cell division cycle 5‐like (CDC5L) and pseudopodium enriched atypical kinase 1 (PEAK1) in EOC tissues. Cell lines (CAOV3 and OVCAR3) overexpressing or silencingcirc‐PGAM1 and miR‐542‐3p were established to explore the functions of circ‐PGAM1 and miR‐542‐3p in ovarian cancer cells. Furthermore, dual‐luciferase reporter assay was performed to study the interactions between circ‐PGAM1 and miR‐542‐3p and between miR‐542‐3p and CDC5L. CCK‐8, transwell, and flow cytometry were used to study the effect of circ‐PGAM1 and miR‐542‐3p on cell biological behaviors including proliferation, migration, invasion, and apoptosis. The interaction between CDC5L and the PEAK1 gene promoter was confirmed using chromatin immunoprecipitation (ChIP). Results Circ‐PGAM1 was upregulated in EOC tissues, whereas linear PGAM1 was not deregulated in EOC tissues. Silencing of circ‐PAGM1 inhibited proliferation, migration, and invasion of ovarian cancer cells and promoted cell apoptosis. MiR‐542‐3p was downregulated in EOC tissues, and miR‐542‐3p overexpression inhibited malignant progression of ovarian cancer cells. Circ‐PGAM1 directly interacted with miR‐542‐3p, with mutual negative feedback between them. CDC5L was a direct target of miR‐542‐3p and played an oncogenic role in ovarian cancer cells. Furthermore, the CDC5L protein binds directly to the PEAK1 promoter to promote its transcription. PEAK1 overexpression activated ERK1/2 and JAK2 signaling pathways and promoted malignant biological behaviors of ovarian cancer cells. Circ‐PAGM1 silencing combined with miR‐542‐3p overexpression played the greatest anticancer role in vivo. Conclusion The circ‐PGAM1/miR‐542‐3p/CDC5L/PEAK1 pathway played an important role in the progression of ovarian cancer and might be a novel therapeutic target for ovarian cancer.
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Affiliation(s)
- Chunmei Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wancheng Zhao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Guipeng Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Yang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
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Liu Q, Wang Z, Zhou X, Tang M, Tan W, Sun T, Wang Y, Deng Y. miR-485-5p/HSP90 axis blocks Akt1 phosphorylation to suppress osteosarcoma cell proliferation and migration via PI3K/AKT pathway. J Physiol Biochem 2020; 76:279-290. [PMID: 32100243 DOI: 10.1007/s13105-020-00730-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 02/06/2020] [Indexed: 02/07/2023]
Abstract
Osteosarcoma (OS) is closely related to the dysregulation of various intracellular signaling pathways, especially the PI3K/Akt signaling pathway. Reportedly, HSP90 was responsible for phospho-Akt stabilization, and both AKT1 and HSP90 were upregulated within osteosarcoma. Herein, we demonstrated that AKT1 and HSP90 mRNA and protein expression were upregulated within osteosarcoma tissues and cells; AKT1 knockdown significantly inhibited OS cell viability. HSP90 knockdown suppressed the phosphorylation of AKT1, decreased ki-67 and Vimentin protein levels, enhanced p21 and E-cadherin protein levels, and inhibited OS cell proliferation and migration; AKT1 overexpression exerted opposing effects and significantly attenuated the effects of HSP90 knockdown. miR-485-5p targeted AKT1 and HSP90 3'-UTR to inhibit AKT1 and HSP90 expression. miR-485-5p overexpression dramatically reduced AKT1, HSP90, and ki-67 proteins, increased E-cadherin protein levels, and inhibited OS cell proliferation and migration. In conclusion, HSP90 knockdown blocked the phosphorylation of AKT1 suppressing the proliferation and migration capacity of OS cells via the PI3K/AKT pathway; miR-485-5p binds to HSP90 and AKT1 in their 3'-UTR to inhibit HSP90 and AKT1 expression, therefore exerting a tumor suppressor function within osteosarcoma.
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Affiliation(s)
- Qing Liu
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, Hunan, People's Republic of China.,Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Zhenting Wang
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, Hunan, People's Republic of China.,Department of urology Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, 410011, Hainan, China
| | - Xiaohua Zhou
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Mingying Tang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Wei Tan
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, Hunan, People's Republic of China.,Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Tianshi Sun
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Yifang Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Youwen Deng
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, Hunan, People's Republic of China.
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Zhao D, Zhang H, Long J, Li M. LncRNA SNHG7 Functions as an Oncogene in Cervical Cancer by Sponging miR-485-5p to Modulate JUND Expression. Onco Targets Ther 2020; 13:1677-1689. [PMID: 32161467 PMCID: PMC7049860 DOI: 10.2147/ott.s237802] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/03/2020] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Long non-coding RNA (LncRNA) SNHG7 is involved in the development of multiple cancers. However, its role in cervical cancer (CC) has not been elucidated. This study aimed to explore the function of SNHG7 in CC progression and the underlying mechanisms. MATERIALS AND METHODS The expression levels of SNHG7 and miR-485-5p in CC tissues and cell lines were measured by qPCR. Functional experiments including CCK-8 assay, wound healing assay, transwell assay, flow cytometry, Western blot, luciferases reporter assay and immunoprecipitation (RIP) were performed to explore the SNHG7/miR-485-5p/JUND pathway. Additionally, in vivo study was carried out by establishing tumor xenograft models. RESULTS We found that SNHG7 was markedly enhanced in CC tissues and cell lines, and associated with poor clinical characteristics. In vitro, knockdown of SNHG7 inhibited CC cell proliferation, migration and invasion, as well as aggravated cell apoptosis. As to mechanism investigation, rescue experiments revealed that miR-485-5p inhibitor could partially reverse the effects on CC cells induced by SNHG7 knockdown. SNHG7 upregulated JUND expression via miR-485-5p. Moreover, tumor xenograft models were established to confirm the findings in vivo. CONCLUSION SNHG7 promoted CC progression through miR-485-5p/JUND axis. The SNHG7/miR-485-5p/JUND pathway might provide a novel therapeutic target for CC treatment.
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Affiliation(s)
- Danyang Zhao
- Department of Reproductive Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, People’s Republic of China
| | - Hui Zhang
- Department of Obstetrics, Chongzuo People’s Hospital, Chongzuo, Guangxi Province, People’s Republic of China
| | - Jianxiong Long
- School of Public Health of Guangxi Medical University, Nanning, Guangxi Province, People’s Republic of China
| | - Mujun Li
- Department of Reproductive Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, People’s Republic of China
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Abstract
Aim: To investigate the role of miR-485-5p in colorectal cancer (CRC). Methodology: The level of miR-485-5p in serum and cell lines were measured by quantitative real-time polymerase chain reaction, and analyzed the diagnostic and prognostic value. Additionally, the biological effect of miR-485-5p on CRC cells was also explored in vitro. Results: The receiver operating characteristic (ROC) curves analysis revealed that miR-485-5p was a diagnostic candidate. Kaplan-Meier analyses demonstrated that patients with low serum miR-485-5p had shorter overall survival. In addition, the result of cox regression model indicated that miR-485-5p was not an independent risk factor for progression. Functional study revealed that overexpression of miR-485-5p could inhibit CRC cell proliferation, invasion and facilitates cell apoptosis. Conclusion: Our study revealed that miR-485-5p was a tumor suppressor and it could serve as a potential prognostic biomarker in CRC.
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Affiliation(s)
- Yuqin Pan
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jian Qin
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Huiling Sun
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Tao Xu
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Shukui Wang
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Bangshun He
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
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Li G, Kong Q. LncRNA LINC00460 promotes the papillary thyroid cancer progression by regulating the LINC00460/ miR-485-5p/Raf1 axis. Biol Res 2019; 52:61. [PMID: 31870440 PMCID: PMC6929379 DOI: 10.1186/s40659-019-0269-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 12/09/2019] [Indexed: 02/06/2023] Open
Abstract
Background Papillary thyroid cancer (PTC) is the most common malignancy of all thyroid cancers. LncRNA LINC00460 has been proved to play roles in the oncogenesis and progression of various tumors, including papillary thyroid cancer. However, the potential molecular mechanism of LINC00460 in PTC is poorly investigated. Results LINC00460 was upregulated in PTC tissues and cells. Raf1 was upregulated in PTC tissues, but miR-485-5p was down-regulated. High LINC00460 expression was associated with poor prognosis. LINC00460 knockdown suppressed proliferation, migration, invation and EMT of PTC cells. Bioinformatics prediction revealed that LINC00460 had binding sites with miR-485-5p, which was validated by luciferase reporter assay. In addition, miR-485-5p was confirmed to directly target Raf1 3′-UTR. Moreover, LINC00460 promoted PTC progression by sponging miR-485-5p to elevate the expression of Raf1. Knockdown of LINC00460 restrained tumor growth in vivo. Conclusion LINC00460 induced proliferation, migration, invation and EMT of PTC cells by regulating the LINC00460/miR-485-5p/Raf1 axis, which indicated that LINC00460 may be a potential biomarker and therapeutic target for PTC.
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Affiliation(s)
- Guangjun Li
- Department of Oncology, Yuncheng County Hospital of Traditional Chinese Medicine, Heze, 274700, Shandong, China
| | - Qingli Kong
- Department of Oncology, The Affiliated Hospital of Jining Medical University, No. 89, Gutun Road, Jining, 272029, Shandong, China.
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Wang H, Luan H, Zhan T, Liu X, Song J, Dai H. Long non-coding RNA LINC00707 acts as a competing endogenous RNA to enhance cell proliferation in colorectal cancer. Exp Ther Med 2019; 19:1439-1447. [PMID: 32010320 DOI: 10.3892/etm.2019.8350] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 11/21/2019] [Indexed: 01/04/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have been indicated to serve critical roles in cancer development and progression. Long intergenic non-protein coding RNA 70 (LINC00707) was recently reported to be an oncogene involved in the tumorigenesis of several types of human cancer. However, the clinical role, biological functions and molecular mechanism of LINC00707 in colorectal cancer (CRC) remain unclear. The aim of the present study was to investigate the biological effects and mechanism of LINC00707 in CRC. Reverse transcription-quantitative PCR was used to detect the expression levels of LINC00707 in 65 CRC tissue samples and CRC cell lines (HCT116, HT29 and SW480). Cell Counting Kit-8 and colony formation assays were performed to investigate the effects of LINC00707 on CRC cell proliferation. A dual-luciferase reporter assay was conducted to investigate the mechanisms of LINC00707 in CRC. The upregulation of LINC00707 expression was significantly associated with tumor size, stage and poor survival in patients with CRC. LINC00707 also acted as an independent prognostic factor for CRC. Functional analyses revealed that the knockdown of LINC00707 could inhibit CRC cell proliferation. Furthermore, bioinformatics analysis demonstrated that microRNA (miR)-485-5p could directly bind to LINC00707, which was confirmed by a dual-luciferase reporter assay. In conclusion, the upregulation of LINC00707 is associated with a shorter survival time in patients with CRC. Knockdown of LINC00707 may inhibit the proliferation of CRC cells by binding with miR-485-5p.
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Affiliation(s)
- Han Wang
- First Clinical Medical College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Hairong Luan
- Basic Medical College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Tao Zhan
- First Clinical Medical College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Xia Liu
- Basic Medical College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Jie Song
- Basic Medical College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Haibing Dai
- First Clinical Medical College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China.,Key Laboratory of Tumor Prevention and Treatment of Heilongjiang Province, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
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Ou R, Lv J, Zhang Q, Lin F, Zhu L, Huang F, Li X, Li T, Zhao L, Ren Y, Xu Y. circAMOTL1 Motivates AMOTL1 Expression to Facilitate Cervical Cancer Growth. Mol Ther Nucleic Acids 2019; 19:50-60. [PMID: 31812104 PMCID: PMC6906701 DOI: 10.1016/j.omtn.2019.09.022] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/20/2019] [Accepted: 09/08/2019] [Indexed: 12/20/2022]
Abstract
Cervical cancer is acknowledged as the most prevalent gynecological tumor and a severe public issue that threatens female health, resulting from its high incidence and fatality rate. Surging evidence have shown that circular RNAs (circRNAs) play significant roles in the initiation and progression of various malignancies. Although circAMOTL1 has been testified to execute oncogenic properties in breast cancer and prostate cancer, literature on its function and regulatory mechanism in cervical cancer development is still scanty. Using a bioinformatics analysis, we found circ_0004214 was a circular form of AMOTL1. Through qRT-PCR analysis, circAMOTL1 and its host gene AMOTL1 were both upregulated in cervical cancer tissues and closely correlated with poor prognosis of cervical cancer. Gain- or loss-of-function assays and in vivo experiments demonstrated that AMOTL1 promoted cervical cancer cell growth both in vitro and in vivo. Mechanically, circAMOTL1 served as a competing endogenous RNA (ceRNA) to prompt the expression of AMOTL1 through sponging miR-485-5p. Rescue assays revealed that miR-485-5p/AMOTL1 axis was involved in circ_AMOTL1-mediated cervical cancer progression. Our findings provide a better understanding of the molecular mechanism underlying circAMOTL1 in cervical cancer and indicated circAMOTL1/miR-485-5p/AMOTL1 as a promising novel therapeutic strategy for the treatment of this disease.
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Affiliation(s)
- Rongying Ou
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Jiangmin Lv
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Qianwen Zhang
- Department of Dermatovenereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Fan Lin
- Department of Dermatovenereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Li Zhu
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Fangfang Huang
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiangyun Li
- Department of Dermatovenereology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518000, China
| | - Tian Li
- Department of Gynaecology and Obstetrics, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518000, China
| | - Liang Zhao
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yi Ren
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, USA
| | - Yunsheng Xu
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; Department of Dermatovenereology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518000, China.
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Gao F, Wu H, Wang R, Guo Y, Zhang Z, Wang T, Zhang G, Liu C, Liu J. MicroRNA-485-5p suppresses the proliferation, migration and invasion of small cell lung cancer cells by targeting flotillin-2. Bioengineered 2019; 10:1-12. [PMID: 30836864 PMCID: PMC6527069 DOI: 10.1080/21655979.2019.1586056] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
This study is aimed to elucidate the mechanisms underlying the role of miR-485-5p in small cell lung cancer (SCLC). The expression of miR-485-5p were quantified with real time quantitative PCR and it was found that the level of miR-485-5p was lower in SCLC tissues than normal tissues. In cultured SCLC cell lines, overexpression of miR-485-5p reduced cell proliferation, migration, and invasion in vitro, whereas knockdown of miR-485-5p performed contrary. FLOT2 expression was obviously upregulated and negatively correlated with miR-485-5p expression level in SCLC tissues. Overexpression of miR-485-5p significantly inhibited the protein expression of flotillin-2 (FLOT2) in cultured SCLC cells. Luciferase reporter assay confirmed that FLOT2 was a direct target of miR-485-5p in SCLC cells. It is concluded that miR-485-5p, as a tumor suppressor, inhibits the growth and metastasis in SCLC by targeting FLOT2. Upregulation of miR-485-5p expression may be an attractive strategy for SCLC therapy.
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Affiliation(s)
- Feng Gao
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Hao Wu
- b Department of Clinical Laboratory , Hebei Medical University , Shijiazhuang , China
| | - Rui Wang
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Yang Guo
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Zefeng Zhang
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Tao Wang
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Guoliang Zhang
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Changjiang Liu
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
| | - Junfeng Liu
- a Department of Thoracic Surgery , the Fourth Hospital of Hebei Medical University , Shijiazhuang , China
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