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Cheng D, Chu F, Liang F, Zhang N, Wang J, Yue W. Downregulation of circ-RAPGEF5 inhibits colorectal cancer progression by reducing the expression of polypeptide N-acetylgalactosaminyltransferase 3 (GALNT3). ENVIRONMENTAL TOXICOLOGY 2024; 39:4249-4260. [PMID: 38775215 DOI: 10.1002/tox.24278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/11/2024] [Accepted: 03/31/2024] [Indexed: 07/14/2024]
Abstract
BACKGROUND Circular RNA (circRNA) plays a crucial role in the pathogenesis and progression of colorectal cancer (CRC). However, the current understanding of the emerging function and mechanism of circ-RAPGEF5 in CRC remains poorly understood. METHODS We first evaluated the expression level of circ-RAPGEF5 in CRC tissues and cells by quantitative real-time polymerase chain reaction (qRT-PCR). Then, we analyzed cell proliferation (EdU and colony formation assay), migration (cell wound healing assay), invasion (transwell assay), and apoptosis (flow cytometry assay). To further elucidate the mechanism of circ-RAPGEF5 in CRC, bioinformatics tools, Dual-luciferase reporter assay, Ago2 RNA immunoprecipitation assay, and RNA pull-down assay were employed. Moreover, we established a CRC transplantation tumor model to evaluate the effect of circ-RAPGEF5 on tumor growth in vivo. RESULTS circ-RAPGEF5 was significantly upregulated in CRC tissues and CRC cells. Furthermore, the downregulation of circ-RAPGEF5 restrained CRC cell proliferation, migration, and invasion, and promoted cell apoptosis in vitro. Mechanistically, circ-RAPGEF5 accelerated the malignant behaviors of CRC cells by sponging miR-545-5p, which targeted polypeptide N-acetylgalactosaminyltransferase 3 (GALNT3). In addition, we revealed that circ-RAPGEF5 silence curbed tumor growth in vivo. CONCLUSION These findings revealed that circ-RAPGEF5 played an oncogenic role through the miR-545-5p/GALNT3 axis in CRC progression, providing potential therapeutic targets for the treatment of CRC.
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Affiliation(s)
- Duo Cheng
- Department of Oncology and Rehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou City, Henan, China
| | - Feifei Chu
- Department of Digestive Diseases, Zhengzhou Central Hospital Affiliated to Zhengzhou University of Zhengzhou, Zhengzhou City, Henan, China
| | - Fang Liang
- Department of Oncology and Rehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou City, Henan, China
| | - Nan Zhang
- Department of Oncology and Rehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou City, Henan, China
| | - Jingjing Wang
- Department of Oncology and Rehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou City, Henan, China
| | - Wenli Yue
- Department of Oncology and Rehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou City, Henan, China
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Shen J, Su X, Wang Q, Ke Y, Zheng T, Mao Y, Wang Z, Dong J, Duan S. Current and future perspectives on the regulation and functions of miR-545 in cancer development. CANCER PATHOGENESIS AND THERAPY 2024; 2:142-154. [PMID: 39027151 PMCID: PMC11252520 DOI: 10.1016/j.cpt.2023.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 07/20/2024]
Abstract
Micro ribonucleic acids (miRNAs) are a highly conserved class of single-stranded non-coding RNAs. Within the miR-545/374a cluster, miR-545 resides in the intron of the long non-coding RNA (lncRNA) FTX on Xq13.2. The precursor form, pre-miR-545, is cleaved to generate two mature miRNAs, miR-545-3p and miR-545-5p. Remarkably, these two miRNAs exhibit distinct aberrant expression patterns in different cancers; however, their expression in colorectal cancer remains controversial. Notably, miR-545-3p is affected by 15 circular RNAs (circRNAs) and 10 long non-coding RNAs (lncRNAs), and it targets 27 protein-coding genes (PCGs) that participate in the regulation of four signaling pathways. In contrast, miR-545-5p is regulated by one circRNA and five lncRNAs, it targets six PCGs and contributes to the regulation of one signaling pathway. Both miR-545-3p and miR-545-5p affect crucial cellular behaviors, including cell cycle, proliferation, apoptosis, epithelial-mesenchymal transition, invasion, and migration. Although low miR-545-3p expression is associated with poor prognosis in three cancer types, studies on miR-545-5p are yet to be reported. miR-545-3p operates within a diverse range of regulatory networks, thereby augmenting the efficacy of cancer chemotherapy, radiotherapy, and immunotherapy. Conversely, miR-545-5p enhances immunotherapy efficacy by inhibiting T-cell immunoglobulin and mucin-domain containing-3 (TIM-3) expression. In summary, miR-545 holds immense potential as a cancer biomarker and therapeutic target. The aberrant expression and regulatory mechanisms of miR-545 in cancer warrant further investigation.
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Affiliation(s)
- Jinze Shen
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Xinming Su
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Qurui Wang
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Yufei Ke
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Tianyu Zheng
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Yunan Mao
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Zehua Wang
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Jingyin Dong
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
| | - Shiwei Duan
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang 310015, China
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Yao ZX, Tu JH, Liu YL, Xue XF, Qin L. Long Non-coding RNA LINC00342 Promotes the Proliferation, Invasion, and Migration of Primary Hepatocellular Carcinoma Cells by Regulating the Expression of miRNA-19a-3p, miRNA-545-5p, and miRNA-203a-3p. Biochem Genet 2024; 62:675-697. [PMID: 37395850 DOI: 10.1007/s10528-023-10420-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 06/07/2023] [Indexed: 07/04/2023]
Abstract
This study aimed to investigate the role of the long non-coding RNA (lncRNA) LINC00342-207 (LINC00342) in the development and progression of primary hepatocellular carcinoma (HCC). Forty-two surgically resected HCC tissues and corresponding paracancerous tissues were collected from October 2019 to December 2020 and examined for lncRNA LINC00342, microRNA (miR)-19a-3p, miR-545-5p, miR-203a-3p, cell cycle protein D1 (CyclinD1/CCND1), murine double minute 2 (MDM2), and fibroblast growth factor 2 (FGF2) expression. The disease-free survival and overall survival of patients with HCC were followed up. HCC cell lines and the normal hepatocyte cell line HL-7702 were cultured and the expression level of LINC00342 was measured. HepG2 cells were transfected with LINC00342 siRNA, LINC00342 overexpression plasmid, miR-19a-3p mimics and their corresponding suppressors, miR-545-5p mimics and their corresponding suppressors, and miR-203a-3p mimics and their corresponding suppressors. The proliferation, apoptosis, migration, and invasion of HepG2 cells were detected. Stably transfected HepG2 cells were inoculated into the left axilla of male BALB/c nude mice, and the volume and quality of transplanted tumors as well as the expression levels of LINC00342, miR-19a-3p, miR-545-5p, miR-203a-3p, CCND1, MDM2, and FGF2 were examined. LINC00342 played an oncogenic role in HCC and exhibited inhibitory effects on proliferation, migration, and invasion, and promoted the apoptosis of HepG2 cells. Moreover, it inhibited the growth of transplanted tumors in vivo in mice. Mechanistically, the oncogenic effect of LINC00342 was associated with the targeted regulation of the miR-19a-3p/CCND1, miR-545-5p/MDM2, and miR-203a-3p/FGF2 axes.
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Affiliation(s)
- Zong-Xi Yao
- Department of General Surgery, The First Affiliated Hospital of Soochow University, No. 899, Pinghai Road, Suzhou, 215031, China
- Department of General Surgery, Suzhou Wuzhong People's Hospital, Suzhou, 215128, China
| | - Jun-Hao Tu
- Department of General Surgery, Suzhou Wuzhong People's Hospital, Suzhou, 215128, China
| | - Yu-Lin Liu
- Department of General Surgery, Suzhou Wuzhong People's Hospital, Suzhou, 215128, China
| | - Xiao-Feng Xue
- Department of General Surgery, The First Affiliated Hospital of Soochow University, No. 899, Pinghai Road, Suzhou, 215031, China.
| | - Lei Qin
- Department of General Surgery, The First Affiliated Hospital of Soochow University, No. 899, Pinghai Road, Suzhou, 215031, China.
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Zheng S, Hu L, Song Q, Shan Y, Yin G, Zhu H, Kong W, Zhou C. miR-545 promotes colorectal cancer by inhibiting transferring in the non-normal ferroptosis signaling. Aging (Albany NY) 2021; 13:26137-26147. [PMID: 34954694 PMCID: PMC8751587 DOI: 10.18632/aging.203801] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/07/2021] [Indexed: 12/24/2022]
Abstract
In this study, we examined whether and how miR-545 modulates ferroptosis in colorectal cancer (CRC). HT-29 and HCT-116 human CRC cell viability was examined using a CCK-8 assay and malondialdehyde (MDA) and Fe2+ levels were measured after treatment with the ferroptosis inducers Eradicator of Ras and ST (erastin) and Ras selective lethal 3 (RSL3) with or without miR-545 overexpression or knockdown vectors. Our results demonstrate that miR-545 overexpression inhibited, while miR-545 knockdown further increased, erastin and RSL3-induced upregulation of MDA, reactive oxygen species (ROS), and Fe2+ levels. Similarly, miR-545 overexpression partially reversed, while miR-545 knockdown enhanced, the erastin and RSL3-induced reduction in HT-29 and HCT-116 cell survival rates. Transferrin (TF) was identified as a target gene of miR-545. To determine whether miR-545 suppresses ferroptosis via TF, we overexpressed TF in HT-29 and HCT-116 cells. We found that TF overexpression blocked miR-545-induced changes in ROS, MDA, and Fe2+ levels in HT-29 and HCT-116 cells, thereby inducing CRC cell death. An in vivo assay showed that inhibition of miR-545 decreased tumor growth in nude mice treated with erastin. Together, these findings indicate that miR-545 promotes CRC cell survival by suppressing TF.
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Affiliation(s)
- Sixin Zheng
- Department of General Surgery, Affiliated Hangzhou First People Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Lingling Hu
- Department of Medical Quality Management, Affiliated Hangzhou First People Hospital, Zhejing University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Qingwen Song
- Department of Medical Quality Management, Affiliated Hangzhou First People Hospital, Zhejing University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Yuqiang Shan
- Department of General Surgery, Affiliated Hangzhou First People Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Guang Yin
- Department of General Surgery, Affiliated Hangzhou First People Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Hanzhang Zhu
- Department of General Surgery, Affiliated Hangzhou First People Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Wencheng Kong
- Department of General Surgery, Affiliated Hangzhou First People Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
| | - Chunhua Zhou
- Department of General Surgery, Affiliated Hangzhou First People Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province 310006, PR China
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Deng W, Wang G, Deng H, Yan Y, Zhu K, Chen R, Liu X, Chen L, Zeng T, Fu B. The Role of Critical N6-Methyladenosine-Related Long Non-Coding RNAs and Their Correlations with Immune Checkpoints in Renal Clear Cell Carcinoma. Int J Gen Med 2021; 14:9773-9787. [PMID: 34934351 PMCID: PMC8684405 DOI: 10.2147/ijgm.s344771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/01/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose This study aimed to evaluate the functions of critical N6-methyladenosine (m6A)-related long non-coding RNAs (lncRNAs) and their correlations with immunotherapeutic targets in clear cell renal cell carcinoma (ccRCC). Methods m6A-related lncRNAs were analyzed using the dataset from The Cancer Genome Atlas database via Pearson correlation analysis. Then, their prognostic functions in patients with ccRCC were determined via univariate Cox analysis. A prognostic m6A-related lncRNA signature (MRLS) in ccRCC was established using the least absolute shrinkage and selection operator (LASSO) Cox regression model. In addition, the correlations between these prognostic m6A-related lncRNAs with immune checkpoints were further evaluated in clinical samples. Results MRLS was established by the LASSO Cox regression model on the basis of seven prognostic m6A-related lncRNAs. The risk score for each patient was calculated using the MRLS model, and the patients were further stratified into high- and low-risk subgroups. The MRLS model was validated with a robust prognostic ability by the stratification analysis. On the basis of age, grade, stage, and risk score, a nomogram was developed with a strong reliability in forecasting the overall survival percentages of the patients with ccRCC. Moreover, seven prognostic m6A-related lncRNAs enrolled in the MRLS model were found to be correlated with various immunotherapeutic targets, namely, PD-1, PD-L1, CTLA4, and LAG3, and the expression levels of which in the high-risk subgroup were significantly higher than those in the low-risk subgroup. The significant correlations between LINC00342 and the aforementioned immunotherapeutic targets were also confirmed in clinical samples. Conclusion In this study, seven m6A-related lncRNAs were identified as potential biomarkers for forecasting the prognosis of patients with ccRCC and evaluating the efficacy of immunotherapy for these patients. Furthermore, a prognostic and predictive MRLS model with a high reliability was constructed to predict the overall survival probability of patients with ccRCC.
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Affiliation(s)
- Wen Deng
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Gongxian Wang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Huanhuan Deng
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Yan Yan
- Department of Nephrology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Ke Zhu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Ru Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China.,Department of Urology, The First Hospital of Putian City, Putian City, Fujian Province, People's Republic of China
| | - Xiaoqiang Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Luyao Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Tao Zeng
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Bin Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
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Ge S, Jiang C, Li M, Cheng Z, Feng X. Long non-coding RNA CRNDE exacerbates NPC advancement mediated by the miR-545-5p/CCND2 axis. Cancer Cell Int 2021; 21:650. [PMID: 34863152 PMCID: PMC8645150 DOI: 10.1186/s12935-021-02348-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Previous studies indicated CRNDE to have a pivotal part within tumorigenesis. Notwithstanding, precise details on CRNDE activities within NPC are still uncertain. The investigation described in this article served to focus in greater depth on the mechanistics regarding CRNDE, together with all associated regulatory networks, on nasopharyngeal carcinoma (NPC) and its treatment possibilities. METHODS Quantitative real-time polymerase chain reaction (RT-qPCR) analyzed CRNDE, miR-545-5p and CCND2 expression within NPCs and representative cell lineages. CCK-8 cell counting-, EdU-, wound-healing-/transwell-assays analyzed cellular proliferation, migrative, together with invasive properties. Apoptosis/cell cycle progression were scrutinized through flow cytometry. Dual-luciferase reporter assays validated CRNDE/miR-545-5p/CCND2 interplay. Proteomic expression of apoptosis-related protein, EMT-related protein and CCND2 protein were evaluated through Western blotting. In addition, Ki67 expression was evaluated through immunohistochemical staining. The effect of CRNDE in vivo was assessed by nude murine xenograft model studies. RESULTS This study demonstrated up-regulated expression of CRNDE and CCND2 within NPC tissues/cell lines. Meanwhile, miR-545-5p was down-regulated. CRNDE knock-down or miR-545-5p over-expression drastically reduced NPC proliferative, migrative and invasive properties, promoted apoptosis/altered cell cycle, and inhibited CCND2 expression. However, miR-545-5p down-regulation had opposing effects. All inhibiting functions generated by CRNDE down-regulation upon NPC progression could be counterbalanced or synergistically exacerbated, depending on miR-545-5p down-regulation or up-regulation, respectively. Multiple-level investigations revealed CRNDE to serve as a sponge for miR-545-5p, and can target CCND2 within NPCs. CONCLUSIONS CRNDE increases CCND2 expression by competitive binding with miR-545-5p, thus accelerating the development of NPC. This provides potential therapeutic targets and prognostic markers against NPC.
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Affiliation(s)
- Sichen Ge
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, Anhui, China
| | - Chengyi Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, Anhui, China.
| | - Min Li
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, Anhui, China
| | - Zhongqiang Cheng
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, Anhui, China
| | - Xiaojia Feng
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, Anhui, China
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Su P, Mao F, Zhang J, Zhang H, Wang M, Xu Y, Tian Z. Circular RNA UBR1 promotes the proliferation, migration, and invasion but represses apoptosis of lung cancer cells via modulating microRNA-545-5p/SSFA2 axis. Bioengineered 2021; 12:12135-12147. [PMID: 34787049 PMCID: PMC8809928 DOI: 10.1080/21655979.2021.2004977] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Lung cancer (LC) is a malignant tumor with the highest incidence in the world, and its specific pathogenesis is still unclear. Circular RNAs (circRNAs) are a group of non-coding RNAs that play a key role in the development and progression of various cancers. The expression pattern and function of circRNAs in LC are still not completely distinct. In this study, it was aimed to study the expression and potential mechanism of circ-UBR1 in LC cells. Then it was found that circ-UBR1 was up-regulated in LC cells, and had microRNA (miR)-545-5p binding sites. Meanwhile, it was confirmed by dual-luciferase reporter assay that circ-UBR1 directly bound to miR-545-5p and then repressed its expression. MiR-545-5p was down-regulated in LC cells and refrained its expression by binding to the downstream target gene SSFA2. Knockdown circ-UBR1 or enhancive miR-545-5p repressed A549 cell proliferation, migration, and invasion, but accelerated apoptosis. After transfection with circ-UBR1 low expression vector, upregulation of SSFA2 apparently reversed the depression of reduced circ-UBR1 on cell proliferation, migration, and invasion, and the promotion of cell apoptosis. Further tumor xenograft experiments in nude mice also confirmed that knockdown of circ-UBR1 could increase the expression of miR-545-5p, but decrease the expression of SSFA2, thus alleviating the progression of LC in vivo. Therefore, these results fully indicate that circ-UBR1 promotes LC cell proliferation, migration, and invasion, but represses apoptosis via the circ-UBR1 axis, which may be a closely related marker and therapeutic target of LC.
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Affiliation(s)
- Peng Su
- Department of Thoracic Fifth, Fourth Hospital of Hebei Medical University, ShiJiaZhuang City, HeBei Province, China
| | - Feng Mao
- Department of Oncology, Shanghai Chest Hospital,Shanghai Jiao Tong University, ShangHai City, 200030, China
| | - Jian Zhang
- Department of Radiotherapy, The Fourth Hospital of Hebei Medical University (East), ShiJiaZhuang City, HeBei Province, China
| | - Hui Zhang
- Department of Oncology, Shanghai Chest Hospital,Shanghai Jiao Tong University, ShangHai City, 200030, China
| | - MingBo Wang
- Department of Thoracic Fifth, Fourth Hospital of Hebei Medical University, ShiJiaZhuang City, HeBei Province, China
| | - YanZhao Xu
- Department of Thoracic Fifth, Fourth Hospital of Hebei Medical University, ShiJiaZhuang City, HeBei Province, China
| | - ZiQiang Tian
- Department of Thoracic Fifth, Fourth Hospital of Hebei Medical University, ShiJiaZhuang City, HeBei Province, China
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Liu R, Yang X. LncRNA LINC00342 promotes gastric cancer progression by targeting the miR-545-5p/CNPY2 axis. BMC Cancer 2021; 21:1163. [PMID: 34715819 PMCID: PMC8556989 DOI: 10.1186/s12885-021-08829-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/30/2021] [Indexed: 12/29/2022] Open
Abstract
Background This study aimed to explore the role and underlying molecular mechanisms of long non-coding RNA (lncRNA) LINC00342 in gastric cancer (GC). Methods The expression of LINC00342 in GC tissues was evaluated by Quantitative reverse transcription polymerase chain reaction (qRT-PCR). Silencing of LINC00342 was conducted to investigate the effect of LINC00342 in vitro and in vivo. The underlying molecular mechanisms of LINC00342 were determined by dual luciferase reporter assay, Western blotting analysis and rescue experiments. Biological functions of LINC00342 were evaluated by cell counting kit-8 (CCK-8) assay, colony formation assay, wound healing assay and Transwell assays. In addition, a tumor model was used to verify the effect of LINC00342 in tumorigenesis in vivo. Results LINC00342 was significantly upregulated in GC tissues and cell lines. Silencing of LINC00342 efficiently inhibited proliferation, migration and invasion of AGS cells in vitro, and also suppressed the tumorigenesis of GC in vivo. Functional experiments showed that LINC00342 regulated the expression of canopy fibroblast growth factor signaling regulator 2 (CNPY2) by competitively sponging miR-545-5p. Rescue experiments showed that inhibition of miR-545-5p and overexpression of CNPY2 significantly reversed cell phenotypes caused by silencing of LINC00342. Conclusion LINC00342 plays a potential oncogenic role in GC by targeting the miR545-5p/CNPY2 axis, and might act as a novel therapeutic target for GC.
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Affiliation(s)
- Run Liu
- Department of Gastroenterology, The Shijiazhuang People's Hospital, 365 Jianhuanan street, Yuhua District, Shijiazhuang, 050000, Hebei, China
| | - Xianwu Yang
- Department of Gastroenterology, The Shijiazhuang People's Hospital, 365 Jianhuanan street, Yuhua District, Shijiazhuang, 050000, Hebei, China.
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Long Noncoding RNAs Regulate the Radioresistance of Breast Cancer. Anal Cell Pathol (Amst) 2021; 2021:9005073. [PMID: 34595090 PMCID: PMC8478560 DOI: 10.1155/2021/9005073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/10/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022] Open
Abstract
Breast cancer (BRCA) has severely threatened women's health worldwide. Radiotherapy is a treatment for BRCA, which applies high doses of ionizing radiation to induce cancer cell death and reduce disease recurrence. Radioresistance is one of the most important elements that affect the therapeutic efficacy of radiotherapy. Long noncoding RNAs (lncRNAs) are suggested to dominate crucial roles in regulating the biological behavior of BRCA. Currently, some studies indicate that overexpression or inhibition of lncRNAs can greatly alter the radioresistance of BRCA. In this review, we summarized the knowledge on the classification and function of lncRNAs and the molecular mechanism of BRCA radioresistance, listed lncRNAs related to the BRCA radioresistance, highlighted their underlying mechanisms, and discussed the potential application of these lncRNAs in regulating BRCA radioresistance.
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Zhou HZ, Chen B, Li XJ, Du JJ, Zhang N, Shao YX, Zhang K, Tong ZC. MicroRNA-545-5p regulates apoptosis, migration and invasion of osteosarcoma by targeting dimethyladenosine transferase 1. Oncol Lett 2021; 22:763. [PMID: 34539867 PMCID: PMC8436355 DOI: 10.3892/ol.2021.13024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 06/08/2021] [Indexed: 11/25/2022] Open
Abstract
The metastasis of osteosarcoma is a major threat to both adolescents and young adults. Identifying novel targets that may prevent osteosarcoma metastasis is critical in developing advanced clinical therapies for treating this cancer. The present study aimed to explore the mechanism of microRNA (miR)-545-5p in the metastasis of osteosarcoma. The present study identified miR-545-5p as a potential target that was downregulated in both osteosarcoma clinical samples and cell lines, and in the latter, ectopically expressed miR-545-5p caused apoptosis. In addition, miR-545-5p exerted inhibitory effects in osteosarcoma migration and invasion. Overexpression of miR-545-5p induced xenograft growth inhibition in vivo. In addition, miR-545-5p targeted dimethyladenosine transferase 1 (DIMT1), an oncogenic protein that facilitates osteosarcoma proliferation, migration and invasion. Taken together, the results of the present study suggest that miR-545-5p functions as a tumor suppressor in osteosarcoma that promotes apoptosis, while inhibiting migration and invasion by targeting DIMT1. Taken together, the results of the present study suggest two potential novel targets for osteosarcoma treatment and metastasis prevention.
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Affiliation(s)
- Hai-Zhen Zhou
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Bo Chen
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Xiao-Ju Li
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Juan-Juan Du
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Nan Zhang
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Yu-Xiong Shao
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Kun Zhang
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
| | - Zhi-Chao Tong
- Department of Osteopathic Oncology, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P.R. China
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11
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Lu Y, Yuan R, Huang H, Chen Z, Qin X, Chen J, Jiang J, Zhuo Y. A Six Autophagy-Related LncRNA Signature Associated with Clinical Prognosis in Prostate Cancer. Genet Test Mol Biomarkers 2021. [DOI: 10.1089/gtmb.2021.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yangbai Lu
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Department of Urology, Zhongshan City People's Hospital Affiliated to Sun Yat‑sen University, Zhongshan, China
| | - Runqiang Yuan
- Department of Urology, Zhongshan City People's Hospital Affiliated to Sun Yat‑sen University, Zhongshan, China
| | - Hongxing Huang
- Department of Urology, Zhongshan City People's Hospital Affiliated to Sun Yat‑sen University, Zhongshan, China
| | - Zheng Chen
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaoping Qin
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jianfan Chen
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Junbin Jiang
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yumin Zhuo
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
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12
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Wu J, Xu W, Ma L, Sheng J, Ye M, Chen H, Zhang Y, Wang B, Liao M, Meng T, Zhou Y, Chen H. Formononetin relieves the facilitating effect of lncRNA AFAP1-AS1-miR-195/miR-545 axis on progression and chemo-resistance of triple-negative breast cancer. Aging (Albany NY) 2021; 13:18191-18222. [PMID: 34289449 PMCID: PMC8351708 DOI: 10.18632/aging.203156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 04/29/2021] [Indexed: 11/30/2022]
Abstract
This investigation attempted to discern whether formononetin restrained progression of triple-negative breast cancer (TNBC) by blocking lncRNA AFAP1-AS1-miR-195/miR-545 axis. We prepared TNBC cell lines (i.e. MDA-MB-231 and BT-549) and normal human mammary epithelial cell line (i.e. MCF-10A) in advance, and the TNBC cell lines were, respectively, transfected by pcDNA3.1-lncRNA AFAP1-AS1, si-lncRNA AFAP1-AS1, pcDNA6.2/GW/EmGFP-miR-545 or pcDNA6.2/GW/EmGFP-miR-195. Resistance of TNBC cells in response to 5-Fu, adriamycin, paclitaxel and cisplatin was evaluated through MTT assay, while potentials of TNBC cells in proliferation, migration and invasion were assessed via CCK8 assay and Transwell assay. Consequently, silencing of lncRNA AFAP1-AS1 impaired chemo-resistance, proliferation, migration and invasion of TNBC cells (P<0.05), and over-expression of miR-195 and miR-545, which were sponged and down-regulated by lncRNA AFAP1-AS1 (P<0.05), significantly reversed the promoting effect of pcDNA3.1-lncRNA AFAP1-AS1 on proliferation, migration, invasion and chemo-resistance of TNBC cells (P<0.05). Furthermore, CDK4 and Raf-1, essential biomarkers of TNBC progression, were, respectively, subjected to target and down-regulation of miR-545 and miR-195 (P<0.05), and they were promoted by pcDNA3.1-lncRNA AFAP1-AS1 at protein and mRNA levels (P<0.05). Additionally, formononetin significantly decreased expressions of lncRNA AFAP1-AS1, CDK4 and Raf-1, while raised miR-195 and miR-545 expressions in TNBC cells (P<0.05), and exposure to it dramatically contained malignant behaviors of TNBC cells (P<0.05). In conclusion, formononetin alleviated TNBC malignancy by suppressing lncRNA AFAP1-AS1-miR-195/miR-545 axis, suggesting that molecular targets combined with traditional Chinese medicine could yield significant clinical benefits in TNBC.
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Affiliation(s)
- Jingjing Wu
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Wen Xu
- State Key Laboratory of Bioreactor Engineering and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Lina Ma
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Jiayu Sheng
- Department of Breast Surgery, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Meina Ye
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Hao Chen
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Yuzhu Zhang
- Department of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Bing Wang
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Mingjuan Liao
- Department of Traditional Chinese Medicine, The Ninth People's Hospital, Medical School of Shanghai Jiaotong University, Shanghai, China
| | - Tian Meng
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Yue Zhou
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
| | - Hongfeng Chen
- Department of Breast, Longhua Hospital Affiliated to Shanghai University of TCM, Shanghai, China
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13
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Liu C, Zhang W, Xing W, Li H, Si T, Mu H. RETRACTED: MicroRNA-498 disturbs the occurrence and aggression of colon cancer through targeting MDM2 to mediate PPARγ ubiquitination. Life Sci 2021; 277:119225. [PMID: 33617858 DOI: 10.1016/j.lfs.2021.119225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/30/2021] [Accepted: 02/11/2021] [Indexed: 02/06/2023]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Concern was raised about the reliability of this article that shares several characteristics with other articles in the eyebrow family of publications, tabulated here (https://docs.google.com/spreadsheets/d/149EjFXVxpwkBXYJOnOHb6RhAqT4a2llhj9LM60MBffM/edit#gid=0). In addition, Fig. 5A appears to show a digital composition of xenografted tumors. The journal requested the corresponding author comment on these concerns and provide the raw data. However the authors were not able to satisfactorily fulfil this request and therefore the Editor-in-Chief decided to retract the article.
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Affiliation(s)
- Changfu Liu
- Department of Interventional Treatment, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin 300060, China; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Weihao Zhang
- Department of Interventional Treatment, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin 300060, China; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Wenge Xing
- Department of Interventional Treatment, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin 300060, China; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Huikai Li
- Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin 300060, China; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China; Department of Hepatobiliary Surgery, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China; National Clinical Research Center for Cancer, Tianjin 300060, China
| | - Tongguo Si
- Department of Interventional Treatment, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China; Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin 300060, China; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China; National Clinical Research Center for Cancer, Tianjin 300060, China
| | - Han Mu
- Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin 300060, China; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China; Department of Hepatobiliary Surgery, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China; National Clinical Research Center for Cancer, Tianjin 300060, China.
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14
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Pan Q, Huang Y, Wang Y, Li D, Lei C. LncRNA ACTA2-AS1 suppress colon adenocarcinoma progression by sponging miR-4428 upregulation BCL2L11. Cancer Cell Int 2021; 21:203. [PMID: 33845844 PMCID: PMC8042989 DOI: 10.1186/s12935-021-01769-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/10/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Long non-coding RNA is considered to be essential to modulate the development and progression of human malignant cancers. And long non-coding RNA can act as crucial modulators by sponging the corresponding microRNA in tumorigenesis. We aimed to elucidate the function of ACTA2-AS1 and its molecular mechanism in colon adenocarcinoma. MATERIALS AND METHODS The expression of ACTA2-AS1, miR-4428 and BCL2L11 in colon adenocarcinoma tissues were detected via qRT-PCR. SW480 and HT29 cells were transfected with shRNA ACTA2-AS1, OE ACTA2-AS1, miRNA mimics of miR-4428, miR-4428 inhibitor, si-BCL2L11 and over-expression of si-BCL2L11. Cell proliferation, colony formation and apoptosis were respectively assessed using CCK-8 assay, colony assay and flow cytometry. Luciferase reporter assay was performed to verify the targets of ACTA2-AS1 and miR-4428. Tumor subcutaneous xenograft mode was constructed to explore tumor growth in vivo. RESULTS ACTA2-AS1 was obviously downregulated in human colon adenocarcinoma tissues and colon adenocarcinoma cell lines. Silence or over-expression of ACTA2-AS1 promoted or inhibited cell proliferation and colony formation abilities, and regulated apoptosis. The silence of ACTA2-AS1 resulted in the decrease of Bax and increase of Bal2, while restored in OE ACTA2-AS1 group when compared with the control transfected cells. In addition, luciferase reporter assay revealed that ACTA2-AS1 interacted with miR-4428 and suppressed its expression. miR-4428 could bind to 3' untranslated region of BCL2L11 and modulated the expression of BCL2L11 negatively. Knockdown of ACTA2-AS1 and over-expression of BCL2L11 reversed the biological function that ACTA2-AS1 mediated by knockdown ACTA2-AS1 alone. CONCLUSION Our data demonstrated that ACTA2-AS1 could suppress colon adenocarcinoma progression via sponging miR-4428 to regulate BCL2L11 expression.
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Affiliation(s)
- Qingyun Pan
- Department of Blood Endocrinology, The Fifth Hospital of Wuhan, Wuhan, 430000, Hubei, People's Republic of China
| | - Ying Huang
- Department of Pharmacy, The Fifth Hospital of Wuhan, Wuhan, 430000, Hubei, People's Republic of China
| | - Yirui Wang
- Department of Oncology, The Fifth Hospital of Wuhan, Wuhan, 430000, Hubei, People's Republic of China
| | - Deke Li
- Department of Anesthesiology, The Fifth Hospital of Wuhan, Wuhan, 430000, Hubei, People's Republic of China
| | - Changjiang Lei
- Department of General Surgery, The Fifth Hospital of Wuhan, Wuhan, 430000, Hubei, People's Republic of China.
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15
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Ma J, Li TF, Yuan HF. Novel Copper Nanoparticles Intercalated Polyurethane Heparin/Poly-L-Lysine Chelates Coated Stents: Viability Study for Coronary Vascular Cells and Aneurysms Treatments. J Biomed Nanotechnol 2021; 17:216-229. [PMID: 33785093 DOI: 10.1166/jbn.2021.3023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Continuous delayed endothelium regeneration and continues thrombosis development designate a task for coronary artery stent rehabilitation. To progress the direct vascular cell behavior, aneurysms treatments and compatibility of cardiovascular implants novel copper intercalated polyurethane heparin/poly-L-lysine chelates treated stent has established in this report. The functional group modifications, structural characteristics, and stability of the chelates have investigated for polyurethane heparin: poly-L-lysine, copper intercalated polyurethane heparin/poly-L-lysine coated stents. The FTIR results showed the copper intercalation at 446 cmr and the Cu 2s peak at 932 eV from XPS also indicated that the successful coating of copper, polyurethane heparin, poly-L-lysine. The relative surface geomorphology of the chelates displayed the uniform Cu coating consisting of multilayer poly-L-lysine on the substrate. The stability and biocompatibility studies indicated the significantly enhanced performance with clot the APTT and TT periods as clotting and cell proliferation assessments. This type of composite proposes a stage on a stent external area for discerning track of vascular cell performance and aneurysms treatments with low side effects.
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Affiliation(s)
- Ji Ma
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou 45000, PR China
| | - Teng-Fei Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou 45000, PR China
| | - Hui-Feng Yuan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou 45000, PR China
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Zhang H, Zhang K, Xu Z, Chen Z, Wang Q, Wang C, Cui J. MicroRNA-545 suppresses progression of ovarian cancer through mediating PLK1 expression by a direct binding and an indirect regulation involving KDM4B-mediated demethylation. BMC Cancer 2021; 21:163. [PMID: 33588776 PMCID: PMC7885496 DOI: 10.1186/s12885-021-07830-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/21/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Ovarian cancer (OC) is a life-threatening gynecological malignancy where dysregulation of microRNAs (miRNAs) is frequently implicated. This study focuses on the function of miR-545 on OC development and the molecules involved. METHODS miR-545 expression in OC tissues and cell lines was determined, and its link to the survival of patients was analyzed. Altered expression of miR-545 was induced to determine its role in proliferation, apoptosis, migration and invasion of OC cells and the angiogenesis ability of human umbilical vein endothelial cells (HUVECs). The targeting mRNAs of miR-545 were predicted and validated through luciferase assays. Gain-of-function studies of KDM4B and PLK1 were performed to explore their involvements in OC development. In vivo experiments were conducted by inducing xenograft tumors in nude mice. RESULTS Poor expression of miR-545 was found in OC tissues and cells compared to the normal ones and it indicated unfavorable prognosis in patients. Overexpression of miR-545 suppressed growth, migration, invasion and angiogenesis of OC cells as well as the angiogenesis ability of HUVECs. miR-545 was found to target mRNAs of KDM4B and PLK1, while KDM4B promoted the transcription of the PLK1 promoter through demethylation of H3K9me3. Either overexpression of KDM4B or PLK1 partially blocked the inhibitory effects of miR-545 mimic on OC cell growth, especially the former one. The in vitro results were reproduced in vivo. CONCLUSION This study evidenced that miR-545 suppresses progression of OC through mediating PLK1 expression by a direct binding and an indirect regulation involving KDM4B-mediated demethylation.
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Affiliation(s)
- Hailing Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China
| | - Ke Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China
| | - Zhen Xu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China
| | - Zhilong Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China
| | - Qian Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China
| | - Chenyang Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China
| | - Jinquan Cui
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, No.2, Jingba Road, Zhengzhou, 450014, Henan, People's Republic of China.
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