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SNHG10 Promotes Cell Proliferation and Migration in Gastric Cancer by Targeting miR-495-3p/CTNNB1 Axis. Dig Dis Sci 2021; 66:2627-2636. [PMID: 32920660 DOI: 10.1007/s10620-020-06576-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 08/21/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Long non-coding RNAs have been acknowledged as the crucial regulators in the progression of human cancers, including gastric cancer (GC). Small nucleolar RNA host gene 10 (SNHG10) has been identified as an oncogene in several cancer types. Nonetheless, it is unclear whether SNHG10 exerts functions in GC cells. AIMS The aims of the current study were to explore the function and underlying mechanism of SNHG10 in GC. METHODS The expression levels of SNHG10, miR-495-3p and catenin beta 1 (CTNNB1) were detected by RT-qPCR. Loss-of-function assays, including CCK-8, colony formation assay, flow cytometry analysis and transwell assays, were conducted to verify the effect of SHNG10 on the proliferation, apoptosis, migration and invasion of GC cells. Mechanism experiments were performed to identify the downstream molecular mechanism of SNHG10. RESULTS SNHG10 was expressed at a high level in GC cells. Knockdown of SNHG10 inhibited the proliferation, migration and invasion of GC cells. Silencing of SNHG10 led to the downregulation of core factors of WNT signaling pathway. Knockdown of SNHG10 could decline the expression of CTNNB1 through sequestering miR-495-3p. CONCLUSIONS SNHG10 promotes the procession of GC through targeting miR-495-3p/CTNNB1 and activating WNT signaling pathway.
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152
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Singh N. Role of mammalian long non-coding RNAs in normal and neuro oncological disorders. Genomics 2021; 113:3250-3273. [PMID: 34302945 DOI: 10.1016/j.ygeno.2021.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/10/2021] [Accepted: 07/14/2021] [Indexed: 12/09/2022]
Abstract
Long non-coding RNAs (lncRNAs) are expressed at lower levels than protein-coding genes but have a crucial role in gene regulation. LncRNA is distinct, they are being transcribed using RNA polymerase II, and their functionality depends on subcellular localization. Depending on their niche, they specifically interact with DNA, RNA, and proteins and modify chromatin function, regulate transcription at various stages, forms nuclear condensation bodies and nucleolar organization. lncRNAs may also change the stability and translation of cytoplasmic mRNAs and hamper signaling pathways. Thus, lncRNAs affect the physio-pathological states and lead to the development of various disorders, immune responses, and cancer. To date, ~40% of lncRNAs have been reported in the nervous system (NS) and are involved in the early development/differentiation of the NS to synaptogenesis. LncRNA expression patterns in the most common adult and pediatric tumor suggest them as potential biomarkers and provide a rationale for targeting them pharmaceutically. Here, we discuss the mechanisms of lncRNA synthesis, localization, and functions in transcriptional, post-transcriptional, and other forms of gene regulation, methods of lncRNA identification, and their potential therapeutic applications in neuro oncological disorders as explained by molecular mechanisms in other malignant disorders.
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Affiliation(s)
- Neetu Singh
- Molecular Biology Unit, Department of Centre for Advance Research, King George's Medical University, Lucknow, Uttar Pradesh 226 003, India.
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153
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Fu D, Zang L, Li Z, Fan C, Jiang H, Men T. Long non-coding RNA CRNDE regulates the growth and migration of prostate cancer cells by targeting microRNA-146a-5p. Bioengineered 2021; 12:2469-2479. [PMID: 34232111 PMCID: PMC8806644 DOI: 10.1080/21655979.2021.1935402] [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] [Indexed: 11/09/2022] Open
Abstract
The function of lncRNA CRNDE and its role in prostate cancer (PC) remains unclear. The aim of this study was to determine the expression level of lncRNA CRNDE in PC tissues and to elucidate its role in PC. The expression levels of lncRNA CRNDE were measured by quantitative reverse transcription polymerase chain reaction. The role of lncRNA CRNDE in PC cells was studied using loss-of-function assays in vitro. Cell proliferation, migration, invasion, and apoptosis were assessed via Cell Counting Kit-8, colony formation, flow cytometry, wound healing, and transwell chamber assays. A luciferase reporter assay was used to characterize the interaction between lncRNA CRNDE and miR-146a-5p. In PC tissues, the expression level of lncRNA CRNDE was upregulated. Moreover, knockdown of lncRNA CRNDE suppressed PC cell proliferation and migration and induced apoptosis in vitro. miR-146a-5p was verified as a direct target of lncRNA CRNDE. Moreover, the inhibition of miR-146a-5p partially counteracted the effects of lncRNA CRNDE on PC cell proliferation, migration, and invasion. In conclusion, lncRNA CRNDE may serve as a cancer promoter in PC by targeting miR-146a-5p. Therefore, lncRNA CRNDE could be a promising target for the clinical treatment of PC.
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Affiliation(s)
- Dewang Fu
- Department of Urology Surgery, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li'e Zang
- Department of Urology Surgery, The First Affiliate Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zhaowei Li
- Department of Urology Surgery, The First Affiliate Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chenghui Fan
- Department of Urology Surgery, The First Affiliate Hospital of Jinzhou Medical University, Jinzhou, China
| | - Huamao Jiang
- Department of Urology Surgery, The First Affiliate Hospital of Jinzhou Medical University, Jinzhou, China
| | - Tongyi Men
- Department of Urology Surgery, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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LINC01287 facilitates proliferation, migration, invasion and EMT of colon cancer cells via miR-4500/MAP3K13 pathway. BMC Cancer 2021; 21:782. [PMID: 34229645 PMCID: PMC8259379 DOI: 10.1186/s12885-021-08528-7] [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: 03/09/2021] [Accepted: 06/21/2021] [Indexed: 02/08/2023] Open
Abstract
Background Accumulated studies indicate that aberrant expression of long noncoding RNAs (lncRNAs) is associated with tumorigenesis and progression of colon cancer. In the present study, long intergenic non-protein coding RNA 1287 (LINC01287) was identified to up-regulate in colon cancer by transcriptome RNA-sequencing, but the exact function remained unclear. Methods Transcriptome RNA-sequencing was conducted to identify dysregulated lncRNAs. Expression of LINC01287 was evaluated by real-time quantitative PCR. The downstream targets of LINC01287 and miR-4500 were verified by luciferase reporter assay, pull down assay and western blot. The potential functions of LINC01287 were evaluated by cell viability assay, colony formation assay, soft agar assay, flow cytometry, transwell migration and invasion assay, and tumor xenograft growth in colon cancer cells. Results Our results indicated that LINC01287 was up-regulated in colon cancer patients. High LINC01287 expression was associated with advanced TNM stage, lymph node metastasis, distant metastasis and shorter overall survival. Knockdown of LINC01287 inhibited cell growth, colony formation in plates and soft agar, transwell cell migration and invasion, and epithelial-mesenchymal transition (EMT) of colon cancer cells, while LINC01287 overexpression had contrary effects. In addition, LINC01287 mediated MAP3K13 expression by sponging miR-4500, thus promoted NF-κB p65 phosphorylation. Restored MAP3K13 expression or miR-4500 knockdown partially abrogated the effects of silencing LINC01287 in colon cancer cells. Conclusion Our findings demonstrated that the LINC01287/miR-4500/MAP3K13 axis promoted progression of colon cancer. Therefore, LINC01287 might be a potential therapeutic target and prognostic marker for colon cancer patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08528-7.
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155
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Chi J, Liu S, Wu Z, Shi Y, Shi C, Zhang T, Xiong B, Zeng Y, Dong X. circNSUN2 promotes the malignant biological behavior of colorectal cancer cells via the miR‑181a‑5p/ROCK2 axis. Oncol Rep 2021; 46:142. [PMID: 34080658 PMCID: PMC8165598 DOI: 10.3892/or.2021.8093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Aberrant expression of circular RNAs (circRNAs) has been demonstrated to be related to the development of colorectal cancer (CRC), the third most common cancer worldwide. However, the mechanism of the effect of circRNA NOP2/Sun domain family, member 2 (circNSUN2) on the malignant biological behavior of CRC remains unclear. In the present study, the expression of circNSUN2 and microRNA (miR)‑181a‑5p was detected by RT‑qPCR. The expression of Rho‑associated coiled‑coil‑containing protein kinase 2 (ROCK2) was measured by western blotting. Cell proliferation was detected by CCK‑8 assay. The cell apoptosis rate was measured by flow cytometry. Cell migration ability was evaluated by Transwell assay. The interactions between circNSUN2, miR‑181a‑5p and ROCK2 were verified by dual‑luciferase reporter assay. The results revealed that circNSUN2 was highly expressed in CRC tissues and cell lines. Knockdown of circNSUN2 inhibited the malignant biological behavior of CRC in vivo and in vitro. Moreover, miR‑181a‑5p was revealed to be a target gene of circNSUN2, and the expression of ROCK2 was negatively regulated by miR‑181a‑5p. Knockdown of circNSUN2 inhibited proliferation and migration, and induced apoptosis of CRC cells and suppressed tumor growth by targeting miR‑181a‑5p to decrease ROCK2 expression. In conclusion, circNSUN2 promoted the progression of CRC by sponging miR‑181a‑5p to increase the expression of ROCK2.
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Affiliation(s)
- Junlin Chi
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Shuang Liu
- Department of Ultrasound, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Zhizhong Wu
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Yanqiang Shi
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Chengmin Shi
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Tong Zhang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Binghong Xiong
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Yujian Zeng
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Xiangqian Dong
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
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Shiu TY, Lin HH, Shih YL, Feng AC, Huang HH, Huang TY, Hsieh CB, Chang WK, Hsieh TY. CRNDE-h transcript/miR-136-5p axis regulates interleukin enhancer binding factor 2 expression to promote hepatocellular carcinoma cell proliferation. Life Sci 2021; 284:119708. [PMID: 34153299 DOI: 10.1016/j.lfs.2021.119708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022]
Abstract
AIMS Hepatocellular carcinoma (HCC) is a primary malignancy of the hepatocyte. Interleukin enhancer binding factor 2 (ILF2) plays a role in the development of HCC. However, the regulatory mechanisms of ILF2 expression in HCC remain unclear. In this study, we aimed to identify ILF2-targeting microRNAs (miRNAs) and to explore how they affect ILF2 expression in HCC. MAIN METHODS The tissue specimens were collected from 25 HCC patients. The underlying regulatory mechanism of ILF2 expression in HCC progression was determined using luciferase reporter assay, quantitative real-time PCR, Western blotting, and BrdU incorporation assay. KEY FINDINGS Of predicted miRNA candidates (miR-122-5p, miR-425-5p, miR-136-5p, miR-7-5p, miR-421 and miR-543), a statistically significant inverse correlation by linear correlation analysis was observed between miR-136-5p and ILF2 mRNA expressions in patients with HCC (r = -0.627, P < 0.001). Further analysis demonstrated that ILF2 was directly regulated by miR-136-5p. In addition, we showed that long noncoding RNA colorectal neoplasia differentially expressed-h (lncRNA CRNDE-h) transcript expression was significantly up-regulated in HCC, and a miR-136-5p binding site was newly found in the lncRNA CRNDE-h transcript sequence using IntaRNA tool. In terms of mechanism, highly-expressed lncRNA CRNDE-h transcript can sponge miR-136-5p, thereby preventing it from interacting with target ILF2 mRNA while promoting the proliferation of HCC cells. SIGNIFICANCE The lncRNA CRNDE-h/miR-136-5p/ILF2 axis plays a significant regulatory role in HCC progression, which may partly explain the pathogenic mechanisms of HCC and may provide promising potential targets for the diagnosis, treatment, and prognosis of HCC.
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Affiliation(s)
- Tzu-Yue Shiu
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Hsuan-Hwai Lin
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
| | - Yu-Lueng Shih
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - An-Chieh Feng
- Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Hsin-Hung Huang
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Tien-Yu Huang
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chung-Bao Hsieh
- Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Wei-Kuo Chang
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Tsai-Yuan Hsieh
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
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157
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Li J, Han T, Wang X, Wang Y, Yang Q. Identification of novel survival-related lncRNA-miRNA-mRNA competing endogenous RNA network associated with immune infiltration in colorectal cancer. Am J Transl Res 2021; 13:5815-5834. [PMID: 34306328 PMCID: PMC8290742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/12/2021] [Indexed: 06/13/2023]
Abstract
Increasing studies have reported that long noncoding RNAs (lncRNAs) play critical roles in the initiation and progression of carcinogenesis. However, the underlying regulatory mechanisms of lncRNA-related competing endogenous RNA (ceRNA) network in colorectal cancer (CRC) are not fully understood. In the present study, we systematically analyzed the expression levels and prognostic values of dysregulated microRNAs (miRNAs) in human CRC to identify novel survival-related lncRNA-miRNA-mRNA ceRNA regulatory network. As a result, 28 dysregulated miRNAs were obtained, and hsa-miR-195-5p was identified as a key oncogene in human CRC based on analyses of expression levels and prognostic values. By means of stepwise prediction and validation, two upstream lncRNAs (NEAT1, XIST) and eight downstream mRNAs (ACOX1, CYP26B1, IRF4, ITPR1, LITAF, PHLPP2, RECK, and TPM2) were identified as key genes that interact with hsa-miR-195-5p. A ceRNA regulatory network consisted of these key genes was constructed, and Gene Set Enrichment Analysis (GSEA) indicated the possible association of key mRNAs with CRC onset and progression. Importantly, immune infiltration analysis revealed that the ceRNA network was remarkably associated with infiltration abundance of multiple immune cells and expression levels of immune checkpoints. These findings indicate that NEAT1 and XIST are potential prognostic factors that affect CRC onset and progression by targeting miR-195-5p.
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Affiliation(s)
- Jianxin Li
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University Luzhou 646000, Sichuan, P. R. China
| | - Ting Han
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University Luzhou 646000, Sichuan, P. R. China
| | - Xin Wang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University Luzhou 646000, Sichuan, P. R. China
| | - Yinchun Wang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University Luzhou 646000, Sichuan, P. R. China
| | - Qingqiang Yang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University Luzhou 646000, Sichuan, P. R. China
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158
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Pidíková P, Herichová I. miRNA Clusters with Up-Regulated Expression in Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13122979. [PMID: 34198662 PMCID: PMC8232258 DOI: 10.3390/cancers13122979] [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: 04/28/2021] [Revised: 06/05/2021] [Accepted: 06/09/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary As miRNAs show the capacity to be used as CRC biomarkers, we analysed experimentally validated data about frequently up-regulated miRNA clusters in CRC tissue. We identified 15 clusters that showed increased expression in CRC: miR-106a/363, miR-106b/93/25, miR-17/92a-1, miR-181a-1/181b-1, miR-181a-2/181b-2, miR-181c/181d, miR-183/96/182, miR-191/425, miR-200c/141, miR-203a/203b, miR-222/221, mir-23a/27a/24-2, mir-29b-1/29a, mir-301b/130b and mir-452/224. Cluster positions in the genome are intronic or intergenic. Most clusters are regulated by several transcription factors, and by long non-coding RNAs. In some cases, co-expression of miRNA with other cluster members or host gene has been proven. miRNA expression patterns in cancer tissue, blood and faeces were compared. The members of the selected clusters target 181 genes. Their functions and corresponding pathways were revealed with the use of Panther analysis. Clusters miR-17/92a-1, miR-106a/363, miR-106b/93/25 and miR-183/96/182 showed the strongest association with metastasis occurrence and poor patient survival, implicating them as the most promising targets of translational research. Abstract Colorectal cancer (CRC) is one of the most common malignancies in Europe and North America. Early diagnosis is a key feature of efficient CRC treatment. As miRNAs can be used as CRC biomarkers, the aim of the present study was to analyse experimentally validated data on frequently up-regulated miRNA clusters in CRC tissue and investigate their members with respect to clinicopathological characteristics of patients. Based on available data, 15 up-regulated clusters, miR-106a/363, miR-106b/93/25, miR-17/92a-1, miR-181a-1/181b-1, miR-181a-2/181b-2, miR-181c/181d, miR-183/96/182, miR-191/425, miR-200c/141, miR-203a/203b, miR-222/221, mir-23a/27a/24-2, mir-29b-1/29a, mir-301b/130b and mir-452/224, were selected. The positions of such clusters in the genome can be intronic or intergenic. Most clusters are regulated by several transcription factors, and miRNAs are also sponged by specific long non-coding RNAs. In some cases, co-expression of miRNA with other cluster members or host gene has been proven. miRNA expression patterns in cancer tissue, blood and faeces were compared. Based on experimental evidence, 181 target genes of selected clusters were identified. Panther analysis was used to reveal the functions of the target genes and their corresponding pathways. Clusters miR-17/92a-1, miR-106a/363, miR-106b/93/25 and miR-183/96/182 showed the strongest association with metastasis occurrence and poor patient survival, implicating them as the most promising targets of translational research.
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159
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Zhang Z, Gu M, Gu Z, Lou YR. Role of Long Non-Coding RNA Polymorphisms in Cancer Chemotherapeutic Response. J Pers Med 2021; 11:jpm11060513. [PMID: 34199840 PMCID: PMC8228201 DOI: 10.3390/jpm11060513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Genetic polymorphisms are defined as the presence of two or more different alleles in the same locus, with a frequency higher than 1% in the population. Since the discovery of long non-coding RNAs (lncRNAs), which refer to a non-coding RNA with a length of more than 200 nucleotides, their biological roles have been increasingly revealed in recent years. They regulate many cellular processes, from pluripotency to cancer. Interestingly, abnormal expression or dysfunction of lncRNAs is closely related to the occurrence of human diseases, including cancer and degenerative neurological diseases. Particularly, their polymorphisms have been found to be associated with altered drug response and/or drug toxicity in cancer treatment. However, molecular mechanisms are not yet fully elucidated, which are expected to be discovered by detailed studies of RNA–protein, RNA–DNA, and RNA–lipid interactions. In conclusion, lncRNAs polymorphisms may become biomarkers for predicting the response to chemotherapy in cancer patients. Here we review and discuss how gene polymorphisms of lncRNAs affect cancer chemotherapeutic response. This knowledge may pave the way to personalized oncology treatments.
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Affiliation(s)
- Zheng Zhang
- School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
| | - Meng Gu
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fudan University, Shanghai 201203, China;
| | - Zhongze Gu
- School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Correspondence: (Z.G.); (Y.-R.L.)
| | - Yan-Ru Lou
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fudan University, Shanghai 201203, China;
- Correspondence: (Z.G.); (Y.-R.L.)
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160
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Yan H, Liu G, Liang Y, Wu W, Xia R, Jiao L, Shen H, Jia Z, Wang Q, Wang Z, Kong Y, Ying B, Wang H, Wang C. Up-regulated long noncoding RNA AC007128.1 and its genetic polymorphisms associated with Tuberculosis susceptibility. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1018. [PMID: 34277818 PMCID: PMC8267308 DOI: 10.21037/atm-21-2724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/17/2021] [Indexed: 02/05/2023]
Abstract
Background Tuberculosis (TB) remains a major public health problem. Long non-coding RNAs (lncRNAs) are important regulators of gene expression. In this study, we explored the association between the expression of lncRNA AC007128.1 and TB susceptibility. Methods Three single-nucleotide polymorphisms (SNPs) (rs12333784, rs6463794, and rs720964) of lncRNA AC007128.1 were selected using the 1000 Genomes Project database and offline software Haploview V4.2, and were genotyped by a customized 2×48-Plex SNPscan™ Kit. Results We identified two differentially expressed lncRNA including AC007128.1 and AP001065.3 in comparisons of expression profiles between ATB vs. LTBI, LTBI vs. HCs, and AC700128.1 expression was specifically and significantly up-regulated in TB patients by verification of external data. Gene Ontology functional enrichment analysis and co-expression network showed up-regulated mRNA was mainly involved in negative regulation of the G protein-coupled receptor (GPCR) signaling pathway, and FPR1 and CYP27B1 were involved in the co-expression of AC007128.1. Using the 1000 Genomes Project, software Haploview V4.2, and SNP genotype, we screened out SNP rs12333784 which locus at 7p21.3 in AC007128.1 associated with TB susceptibility. The G carrier of rs12333784 was then finally verified to be significantly associated with pulmonary TB (PTB) and extrapulmonary tuberculosis (EPTB) susceptibility (pBonferroni =0.03878), and a similar but more significant effect was observed under the dominant model analysis (pBonferroni =0.013, OR =1.349, 95% CI, 1.065–1.709). In addition, the GG + GA genotype of SNP rs12333784 was significantly correlated with higher glucose (GLU) (P=0.03), higher gamma-glutamyl transferase (GGT) (P=0.05), and higher erythrocyte sedimentation rate (ESR) (P=0.05). Conclusions Our findings show lncRNA AC007128.1 can be regarded as biomarkers discriminating between ATB and LTBI and may also be a diagnostic biomarker for LBTI. These findings may aid clinical decision making in the management of TB.
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Affiliation(s)
- Hong Yan
- Department of Clinical Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, China.,Laboratory Medicine Center, the Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Guoye Liu
- Department of Laboratory Medicine, Affiliated Brain Hospital of Nanjing Medical University (Chest Branch), Nanjing, China
| | - Yuan Liang
- The Affiliated Cancer Hospital & Hepatobiliary Center, First Affiliated Hospital, Nanjing Medical University, Nanjing, China.,Department of Bioinformatics, Nanjing Medical University, Nanjing, China
| | - Wei Wu
- Department of Bioinformatics, Nanjing Medical University, Nanjing, China.,Research Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Rui Xia
- Department of Laboratory Medicine, Affiliated Brain Hospital of Nanjing Medical University (Chest Branch), Nanjing, China
| | - Lin Jiao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Han Shen
- Department of Clinical Laboratory, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhijun Jia
- Department of Nuclear Medicine, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Qian Wang
- Department of Laboratory Medicine, Affiliated Brain Hospital of Nanjing Medical University (Chest Branch), Nanjing, China
| | - Zhiqiang Wang
- Department of Laboratory Medicine, Affiliated Brain Hospital of Nanjing Medical University (Chest Branch), Nanjing, China
| | - Yi Kong
- Department of Clinical Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hualiang Wang
- Department of Molecular Biology, Shanghai Centre for Clinical Laboratory, Shanghai, China
| | - Chengbin Wang
- Department of Clinical Laboratory Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, China
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161
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Zhang L, Tao H, Li J, Zhang E, Liang H, Zhang B. Comprehensive analysis of the competing endogenous circRNA-lncRNA-miRNA-mRNA network and identification of a novel potential biomarker for hepatocellular carcinoma. Aging (Albany NY) 2021; 13:15990-16008. [PMID: 34049287 PMCID: PMC8266324 DOI: 10.18632/aging.203056] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 04/09/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND The competing endogenous RNAs (ceRNAs) hypothesis has received increasing attention as a novel explanation for tumorigenesis and cancer progression. However, there is still a lack of comprehensive analysis of the circular RNA (circRNA)-long non-coding RNA (lncRNA)-miRNA-mRNA ceRNA network in hepatocellular carcinoma (HCC). METHODS RNA sequencing data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database were employed to identify Differentially Expressed mRNAs (DEmRNAs), DElncRNAs, and DEcircRNAs between HCC and normal tissues. Candidates were identified to construct networks through a comprehensive bioinformatics strategy. A prognostic mRNA signature was established based on data from TCGA database and validated using data from the GEO database. Then, the HCC prognostic circRNA-lncRNA-miRNA-mRNA ceRNA network was established. Finally, the expression and function of an unexplored hub gene, deoxythymidylate kinase (DTYMK), was explored through data mining. The results were examined using clinical samples and in vitro experiments. RESULTS We constructed a prognostic signature with seven target mRNAs by univariate, lasso and multivariate Cox regression analyses, which yielded 1, 3 and 5-year AUC values of 0.797, 0.733 and 0.721, respectively, indicating its sensitivity and specificity in the prognosis of HCC. Moreover, the prognostic signature could be validated in GSE14520. The prognostic ceRNA network of 21 circRNAs, 15 lncRNAs, 5 miRNAs, and 7 mRNAs was established according to the targeting relationship between 7 hub mRNAs and other RNAs. Our experiment results indicated that the depletion of DTYMK inhibited liver cancer cell proliferation and invasion. CONCLUSIONS The network revealed in this study may help comprehensively elucidate the ceRNA mechanisms driving HCC, and provide novel candidate biomarkers for evaluating the prognosis of HCC.
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Affiliation(s)
- Lu Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan 430030, Hubei, China
| | - Haisu Tao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan 430030, Hubei, China
| | - Jiang Li
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan 430030, Hubei, China
| | - Erlei Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan 430030, Hubei, China
| | - Huifang Liang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan 430030, Hubei, China
| | - Bixiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan 430030, Hubei, China
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162
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Ding Y, Lv C, Zhou Y, Zhang H, Zhao L, Xu Y, Fan X. Vimentin loss promotes cancer proliferation through up-regulating Rictor/AKT/β-catenin signaling pathway. Exp Cell Res 2021; 405:112666. [PMID: 34052237 DOI: 10.1016/j.yexcr.2021.112666] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 05/09/2021] [Accepted: 05/22/2021] [Indexed: 11/18/2022]
Abstract
Vimentin protein is one of the main cytoskeleton and plays an important role in cell motility and metastasis. Nowadays, vimentin is widely studied as an epithelial-mesenchymal transition (EMT) marker of cancer cells while its involvement in cancer proliferation is poorly understood. In this study, we investigated the participation of vimentin in regulating cancer proliferation by silencing VIM gene in four cancer cell lines. Our results demonstrated that vimentin loss significantly induced cancer cell proliferation both in vitro and in vivo, which has not been reported so far. Mechanistically, knockdown of vimentin expression activated AKT phosphorylation and its downstream β-catenin signaling. Nuclear translocation and transcriptional activity of β-catenin was enhanced after silencing vimentin expression. Furthermore, vimentin loss could prevent Rictor from autophagy-dependent degradation via reducing AMPK-mediated autophagy signaling. AICAR, an AMPK activator, down-regulated Rictor and p-AKT levels while vimentin knockdown could rescue the effects. In vivo, it was also found that Ki67 expression and p-AKT/β-catenin signaling pathway were obviously up-regulated in the tumor tissues in which vimentin was silenced compared to control groups. Taken together, these data showed the novel function of vimentin in regulating cancer proliferation via Rictor/AKT/β-catenin signaling pathway, which suggested that it need more careful consideration before inhibiting metastatic cancers through targeting vimentin.
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Affiliation(s)
- Youxiang Ding
- Department of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Conggai Lv
- The Second Hospital of Shi JiaZhuang, Shi Jiazhuang, 050000, China
| | - You Zhou
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Heng Zhang
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Li Zhao
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Yuting Xu
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Xiangshan Fan
- Department of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China.
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163
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Liu Q, Zhang W, Luo L, Han K, Liu R, Wei S, Guo X. Long noncoding RNA TUG1 regulates the progression of colorectal cancer through miR-542-3p/TRIB2 axis and Wnt/β-catenin pathway. Diagn Pathol 2021; 16:47. [PMID: 34030715 PMCID: PMC8142490 DOI: 10.1186/s13000-021-01101-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/22/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the third normal malignancy worldwide. Taurine-upregulated gene 1 (TUG1), a member of long noncoding RNAs (lncRNAs), has been reported to be involved in various cancers. However, the mechanism underlying TUG1 in the progression of CRC remains unclear. METHODS The expression of TUG1, microRNA-542-3p (miR-542-3p), and tribbles homolog 2 (TRIB2) in CRC tissues and cells (LoVo and HCT116) were detected by quantitative real-time PCR (qRT-PCR). Methyl thiazolyl tetrazolium (MTT), transwell and flow cytometry assays were employed to evaluate the effects of TUG1 in CRC cells. The interaction between miR-542-3p and TUG1 or TRIB2 were verified by dual-luciferase reporter assay. A xenograft tumor model in nude mice was established to investigate the biological role of TUG1 in CRC in vivo. RESULTS TUG1 was increased in CRC tissues and cells (LoVo and HCT116) in contrast with adjacent normal tissues and normal intestinal mucous cells (CCC-HIE-2). Downregulation of TUG1 or TRIB2 suppressed the proliferation, migration, invasion, and induced apoptosis in CRC cells. And knockdown of TUG1 repressed tumor growth in vivo. Besides, overexpression of TRIB2 reversed the effects of TUG1 depletion on the progression of CRC. Meanwhile, TUG1 interacted with miR-542-3p and TRIB2 was a target of miR-542-3p. Furthermore, miR-542-3p knockdown or TRIB2 overexpression partly reversed the suppression effect of TUG1 depletion on the Wnt/β-catenin pathway. CONCLUSIONS TUG1 served as a tumor promoter, impeded the progression of CRC by miR-542-3p/TRIB2 axis to inactivate of Wnt/β-catenin pathway, which providing a novel target for CRC treatment.
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Affiliation(s)
- Quanlin Liu
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China.
| | - Wei Zhang
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China
| | - Linshan Luo
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China
| | - Keshun Han
- Department of Constipation, Zhengzhou Anorectal Hospital, Zhengzhou, China
| | - Ruitao Liu
- Department of Large Intestine, Zhengzhou Anorectal Hospital, Zhengzhou, China
| | - Shue Wei
- Department of Large Intestine, Zhengzhou Anorectal Hospital, Zhengzhou, China
| | - Xiaoran Guo
- Department of Colorectal Surgery, Zhengzhou Anorectal Hospital, No. 51, Longhai East Road, 450004, Zhengzhou, China
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164
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Chen Y, Zhang R. Long non-coding RNA AL139002.1 promotes gastric cancer development by sponging microRNA-490-3p to regulate Hepatitis A Virus Cellular Receptor 1 expression. Bioengineered 2021; 12:1927-1938. [PMID: 34002670 PMCID: PMC8806325 DOI: 10.1080/21655979.2021.1922329] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Mounting evidence suggests that lncRNA regulates many important diseases. However, the biological role of most lncRNAs in gastric cancer (GC) remain unclear. In this paper, we determined differential expression of lncRNAs and predicted ceRNA networks in the GC database by bioinformatics analysis and validated in GC cells. The effect of lncRNA AL139002.1 on GC cells biological function was assessed by flow cytometry, CCK-8, colony formation, wound healing assay, transwell, western blot, and qRT-PCR. And the relationship of lncRNA AL139002.1 or HAVCR1 with miR-490-3p was verified by luciferase reporter assay. The results showed that lncRNA AL139002.1 was highly expressed in GC cells and lncRNA AL139002.1 knockdown induced apoptosis, while suppressed cell proliferation, migration, invasion, and EMT. Functional examining indicated that lncRNA AL139002.1 regulated HAVCR1 expression by competitively binding miR-490-3p. In addition, lncRNA AL139002.1/miR-490-3p/HAVCR1 regulated EMT and metastasis through MEK/ERK signaling. In conclusion, lncRNA AL139002.1 was highly expressed in GC cells, and lncRNA AL139002.1/miR-490-3p/HAVCR1 functioned critically in GC by regulating MEK/ERK signaling. Our findings demonstrated that lncRNA AL139002.1 served as a potential therapeutic and anti-metastatic biotarget for GC.
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Affiliation(s)
- Yurong Chen
- Department of Medical Oncology, Zhuji People's Hospital of Zhejiang Province, Zhuji Affiliated Hospital of Shaoxing University, Zhuji, Zhejiang, China
| | - Renchao Zhang
- Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital; Key Laboratory of Gastroenterology of Zhejiang Province, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, PR China
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165
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Upregulation of lnc-ZNF281 Inhibits the Progression of Glioma via the AKT/GSK-3 β/ β-Catenin Signaling Pathway. J Immunol Res 2021; 2021:5573071. [PMID: 34056009 PMCID: PMC8131163 DOI: 10.1155/2021/5573071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/14/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study is to elucidate the roles and potential underlying mechanisms of long noncoding RNA lnc-ZNF281 in glioma. We performed qRT-PCR to detect the expression levels of lnc-ZNF281 in glioma tissues. The effects of lnc-ZNF281 on the proliferative and migrative abilities of T98G and HS683 glioma cells were examined by cell proliferation assay, colony formation assay, wound-healing assay, and transwell assay. Also, the effects of lnc-ZNF281 on AKT/GSK-3β/β-catenin pathway were analyzed. The results showed that the expression of lnc-ZNF281 in glioma tissues was decreased compared with normal tissues. lnc-ZNF281 overexpression inhibited the proliferative and migrative abilities of glioma cells, while lnc-ZNF281 knockdown obtained the opposite findings. Besides, overexpression of lnc-ZNF281 in glioma cells inactivated the AKT/GSK-3β/β-catenin signaling pathway. Furthermore, β-catenin activation reversed the suppressive effects of lnc-ZNF281 on glioma cells. Taken together, lnc-ZNF281 inhibits glioma cell proliferation and migration via AKT/GSK-3β/β-catenin pathway and may serve as a potential target for glioma treatment.
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166
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Li S, Wu H, Huang X, Jian Y, Kong L, Xu H, Ouyang Y, Chen X, Wu G, Yu L, Wang X. BOP1 confers chemoresistance of triple-negative breast cancer by promoting CBP-mediated β-catenin acetylation. J Pathol 2021; 254:265-278. [PMID: 33797754 DOI: 10.1002/path.5676] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/03/2021] [Accepted: 03/30/2021] [Indexed: 12/26/2022]
Abstract
Chemoresistance is a major obstacle to the treatment of triple-negative breast cancer (TNBC), which has a poor prognosis. Increasing evidence has demonstrated the essential role of cancer stem cells (CSCs) in the process of TNBC chemoresistance. However, the underlying mechanism remains unclear. In the present study, we report that block of proliferation 1 (BOP1) serves as a key regulator of chemoresistance in TNBC. BOP1 expression was significantly upregulated in chemoresistant TNBC tissues, and high expression of BOP1 correlated with shorter overall survival and relapse-free survival in patients with TNBC. BOP1 overexpression promoted, while BOP1 downregulation inhibited the drug resistance and CSC-like phenotype of TNBC cells in vitro and in vivo. Moreover, BOP1 activated Wnt/β-catenin signaling by increasing the recruitment of cyclic AMP response element-binding protein (CBP) to β-catenin, enhancing CBP-mediated acetylation of β-catenin, and increasing the transcription of downstream stemness-related genes CD133 and ALDH1A1. Notably, treating with the β-catenin/CBP inhibitor PRI-724 induced an enhancement of chemotherapeutic response of paclitaxel in BOP1-overexpressing TNBC cells. These findings indicate that BOP1 is involved in chemoresistance development and might serve as a prognostic marker and therapeutic target in TNBC. © 2021 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Siqi Li
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Haoming Wu
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | | | - Yunting Jian
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Lingzhi Kong
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Hongyi Xu
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China.,Department of Breast Surgery, Sun Yat-sen University Cancer Center, Guangzhou, PR China
| | - Ying Ouyang
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Xiangfu Chen
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Geyan Wu
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China
| | - Liang Yu
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Xi Wang
- Department of Breast Surgery, Sun Yat-sen University Cancer Center, Guangzhou, PR China
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167
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Zhou H, Cao J, Yang F, Fan D, Li H, Fan T, Sun P. Member Domain 3 (LRIG3) Activates Hypoxia-Inducible Factor-1 α/Vascular Endothelial Growth Factor (HIF-1α/VEGF) Pathway to Inhibit the Growth of Bone Marrow Mesenchymal Stem Cells in Glioma. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Member domain 3 (LRIG3) of the LRIG gene family is down-regulated in several cancers. However, its role in bone marrow mesenchymal stem cells (BMSCs) in gliomas and the related mechanisms is unknown. The qRT-PCR assessed LRIG3 mRNA level. Rat BMSCs were randomly assigned into glioma
group (BMSCs cultured in glioma microenvironment); LRIG3 overexpression group; and si-LRIG3 inhibitor group followed by analysis of LRIG3 expression, cell proliferation, PCNA and Ki-67 apoptosis, TNF-α; and HIF-1α/VEGF mRNA level. LRIG3 mRNA expression was decreased
in gliomas patients (P < 0.05). BMSCs cultured in glioma microenvironment showed decreased LRIG3, increased cell proliferation, decreased PCNA, Ki-67 and TNF-α secretion as well as elevated HIF-1α and VEGF level (P < 0.05). Transfection of LRIG3
siRNA further promoted the above changes. Conversely, LRIG3 plasmid transfection significantly promoted its expression in glioma BMSCs (P < 0.05), inhibited cell proliferation, promoted PCNA, Ki-67, and TNF-α secretion, and increased HIF-1α and VEGF level
(P < 0.05). LRIG3 in rat BMSCs cultured in the glioma microenvironment is decreased. Down-regulation of LRIG3 inhibits TNF-α secretion by activating HIF-1α/VEGF pathway regulating BMSCs proliferation and apoptosis.
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Affiliation(s)
- Haiyan Zhou
- Department of Emergency Medicine, Baoding Second Hospital, Baoding, Hebei, 071052, China
| | - Jing Cao
- Department of Emergency Medicine, Baoding Second Hospital, Baoding, Hebei, 071052, China
| | - Fan Yang
- Department of Emergency Medicine, Baoding Second Hospital, Baoding, Hebei, 071052, China
| | - Duojiao Fan
- Department of Science and Education, Baoding Second Hospital, Baoding, Hebei, 071052, China
| | - Hengzhou Li
- Department of Emergency Medicine, Baoding Second Hospital, Baoding, Hebei, 071052, China
| | - Tao Fan
- Department of Neurosurgery, Beijing Sanbo Brain Hospital of Capital Medical University, Beijing, 100093, China
| | - Peng Sun
- Department of Emergency Medicine, Baoding Second Hospital, Baoding, Hebei, 071052, China
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168
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Yang Y, Yan X, Li X, Ma Y, Goel A. Long non-coding RNAs in colorectal cancer: Novel oncogenic mechanisms and promising clinical applications. Cancer Lett 2021; 504:67-80. [PMID: 33577977 PMCID: PMC9715275 DOI: 10.1016/j.canlet.2021.01.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/29/2020] [Accepted: 01/08/2021] [Indexed: 02/05/2023]
Abstract
Colorectal cancer (CRC) is the third most common malignancy and ranks as the second leading cause of cancer-related deaths worldwide. Despite the improvements in CRC diagnosis and treatment approaches, a considerable proportion of CRC patients still suffers from poor prognosis due to late disease detections and lack of personalized disease managements. Recent evidences have not only provided important molecular insights into their mechanistic behaviors but also indicated that identification of cancer-specific long non-coding RNAs (LncRNAs) could benefit earlier disease detections and improve treatment outcomes in patients suffering from CRC. LncRNAs have raised extensive attentions as they participate in various hallmarks of CRC. The mechanistic evidence gleaned in the recent decade clearly reveals that lncRNAs exert their oncogenic roles by regulating autophagy, epigenetic modifications, enhancing stem phenotype and modifying tumor microenvironment. In view of their pleiotropic functional roles in malignant progression, and their frequently dysregulated expression in CRC patients, they have great potential to be reliable diagnostic and prognostic biomarkers, as well as therapeutic targets for CRC. In the present review, we will focus on the oncogenic roles of lncRNAs and related mechanisms in CRC as well as discuss their clinical potential in the early diagnosis, prognostic prediction and therapeutic translation in patients with this malignancy.
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Affiliation(s)
- Yufei Yang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xuebing Yan
- Department of Oncology, Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Xinxiang Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Yanlei Ma
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Ajay Goel
- Department of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute of City of Hope Comprehensive Cancer Center, Duarte, CA, USA.
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169
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Zhang C, Yang Y, Yi L, Paizula X, Xu W, Wu X. HOXD Antisense Growth-Associated Long Noncoding RNA Promotes Triple-Negative Breast Cancer Progression by Activating Wnt Signaling Pathway. J Breast Cancer 2021; 24:315-329. [PMID: 34128362 PMCID: PMC8250102 DOI: 10.4048/jbc.2021.24.e24] [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: 04/23/2020] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 12/27/2022] Open
Abstract
PURPOSE Triple-negative breast cancer (TNBC) is the most lethal subtype of breast cancer owing to high heterogeneity, aggressive nature, and lack of treatment options, which has a substantial deleterious effect on patients' lives. HOXD antisense growth-associated long noncoding RNA (lncRNA) (HAGLR) plays tumor-promoting roles in many cancers. In this study, we aimed to explore the role of HAGLR in TNBC. METHODS Quantitative real-time polymerase chain reaction assays were used to examine the expression of RNAs. Functional experiments were conducted to test the biological behavior of TNBC cells. Moreover, MS2-RNA immunoprecipitation, luciferase reporter, and RNA pull-down assays were conducted to verify the binding relationship between HAGLR, microRNA-143-5p (miR-143-5p), and serine- and arginine-rich splicing factor 1 (SRSF1). RESULTS HAGLR was found to be highly expressed in TNBC tissues and cells, and inhibiting HAGLR suppressed cell proliferation, migration, and invasion and promoted cell apoptosis in TNBC. Meanwhile, miR-93-5p was shown to bind to HAGLR and SRSF1. In addition, SRSF1 plays an oncogenic role in TNBC. Importantly, HAGLR could activate the Wnt signaling pathway by sponging miR-93-5p to upregulate SRSF1; thus, accelerating TNBC progression. CONCLUSION HAGLR could promote the progression of TNBC through the miR-93-5p/SRSF1 axis to activate the Wnt signaling pathway.
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Affiliation(s)
- Chenguang Zhang
- Department of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
| | - Ying Yang
- EEG Room, Weifang Yidu Central Hospital, Weifang, China
| | - Lina Yi
- The Second Ward of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
| | - Xuelaiti Paizula
- The Second Ward of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
| | - Wenting Xu
- The Second Ward of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
| | - Xiuping Wu
- Department of Breast Surgery, Zhengxing Hospital, Zhangzhou, China.
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170
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Long non-coding RNA TMPO-AS1 facilitates chemoresistance and invasion in breast cancer by modulating the miR-1179/TRIM37 axis. Oncol Lett 2021; 22:500. [PMID: 33981362 PMCID: PMC8108256 DOI: 10.3892/ol.2021.12761] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/08/2021] [Indexed: 12/19/2022] Open
Abstract
Breast cancer has become the most common female tumor in the world. Although great progress has been made in the past decade, the treatment of advanced breast cancer remains unsatisfactory. An increasing number of reports have indicated that long non-coding RNAs (lncRNAs) have a pivotal role in chemoresistance as potential oncogenes in numerous types of cancer. However, the precise mechanisms underlying the action of lncRNAs in breast cancer resistance to chemotherapy have yet to be fully elucidated. In the present study, the function and molecular mechanisms of the lncRNA TMPO-antisense RNA 1 (AS1) in terms of its resistance to docetaxel (DOC) were explored in the MDA-MB-231 and MCF7 breast cancer cell lines. The results obtained suggested that TMPO-AS1 was markedly upregulated in DOC-resistant breast cancer cells compared with the sensitive breast cancer cells. Functionally, TMPO-AS1-knockdown sensitized MDA-231/DOC and MCF-7/DOC cells to DOC and suppressed cell invasion, with increased rates of DOC-induced apoptosis. Mechanistically, TMPO-AS1-downregulation induced DOC-sensitivity in breast cancer cells via depleting tripartite motif-containing protein 37 (TRIM37) by sponging microRNA (miR)-1179. Taken together, the present study has revealed the existence of a novel TMPO-AS1/miR-1179/TRIM37 molecular axis conferring DOC resistance of breast cancer cells, thereby suggesting a promising novel therapeutic target for breast cancer.
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171
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Chen L, He M, Zhang M, Sun Q, Zeng S, Zhao H, Yang H, Liu M, Ren S, Meng X, Xu H. The Role of non-coding RNAs in colorectal cancer, with a focus on its autophagy. Pharmacol Ther 2021; 226:107868. [PMID: 33901505 DOI: 10.1016/j.pharmthera.2021.107868] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is one of malignant afflictions burdening people worldwide, mainly caused by shortages of effective medical intervention and poorly mechanistic understanding of the pathogenesis of CRC. Non-coding RNAs (ncRNAs) are a type of heterogeneous transcripts without the capability of coding protein, but have the potency of regulating protein-coding gene expression. Autophagy is an evolutionarily conserved catabolic process in which cytoplasmic contents are delivered to cellular lysosomes for degradation, resulting in the turnover of cellular components and producing energy for cell functions. A growing body of evidence reveals that ncRNAs, autophagy, and the crosstalks of ncRNAs and autophagy play intricate roles in the initiation, progression, metastasis, recurrence and therapeutic resistance of CRC, which confer ncRNAs and autophagy to serve as clinical biomarkers and therapeutic targets for CRC. In this review, we sought to delineate the complicated roles of ncRNAs, mainly including miRNAs, lncRNAs and circRNAs, in the pathogenesis of CRC, particularly focus on the regulatory role of ncRNAs in CRC-related autophagy, attempting to shed light on the complex pathological mechanisms, involving ncRNAs and autophagy, responsible for CRC tumorigenesis and development, so as to underpin the ncRNAs- and autophagy-based therapeutic strategies for CRC in clinical setting.
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Affiliation(s)
- Li Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Man He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Meng Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qiang Sun
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Sha Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hui Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Han Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Maolun Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shan Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Haibo Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Pharmacology, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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172
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Abdel-Motaleb AI, Azzazy HM, Moustafa A. Toward Colorectal Cancer Biomarkers: The Role of Genetic Variation, Wnt Pathway, and Long Noncoding RNAs. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2021; 25:302-312. [PMID: 33891491 PMCID: PMC8110006 DOI: 10.1089/omi.2020.0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Colorectal cancer (CRC) is the third leading cause of death worldwide, comprising nearly 8% of cancer-related deaths per year. In South Korea, for example, CRC is the second most common cancer in men, and third in women. This study reports on the association of CRC with genetic variations in long noncoding RNAs, activators, and inhibitors of a cell proliferation pathway. Five normal colon mucosa tissue samples and their matched five-stage IV CRC samples were evaluated (dataset Gene Expression Omnibus accession: GSE50760). We identified more than 5000 differentially expressed genes (DEGs). The Wnt pathway had the greatest portion of DEGs, including activators, inhibitors, and associated long noncoding RNAs (lncRNAs), suggesting the importance of Wnt pathway in CRC. The following genes were aberrantly expressed: WIF1, SFRP4, CD82, WNT2, WNT3, WNT5A, HOTAIR, CRNDE, and UCA1. Notably, HOTAIR is known to silence WIF1, and WIF1 inhibits the Wnt ligands to negatively regulate the pathway. The lncRNA CRNDE positively regulates WNT5A, while UCA1 positively regulates WNT2 and WNT3. We note that HOTAIR was unable to silence WIF1. CRNDE and UCA1 were found to be upregulated, which may explain the high expression of the WIF1 targets. Furthermore, 10 single-nucleotide polymorphisms (SNPs) were identified in five of the candidate genes above. A possible novel SNP in CD82, chr11:44619242T > C, was predicted to introduce a ZBTB7A binding site. These SNPs are hypothesized to contribute to aberrant and discrepant regulation of the Wnt pathway in a context of CRC pathogenesis. These findings collectively inform future research on diagnostics and therapeutics innovation in CRC.
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Affiliation(s)
| | - Hassan M Azzazy
- Biotechnology Graduate Program, American University in Cairo, New Cairo, Egypt.,Department of Chemistry and American University in Cairo, New Cairo, Egypt
| | - Ahmed Moustafa
- Biotechnology Graduate Program, American University in Cairo, New Cairo, Egypt.,Department of Biology, American University in Cairo, New Cairo, Egypt
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173
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Li Q, Yue W, Li M, Jiang Z, Hou Z, Liu W, Ma N, Gan W, Li Y, Zhou T, Yue W, Chen S. Downregulating Long Non-coding RNAs CTBP1-AS2 Inhibits Colorectal Cancer Development by Modulating the miR-93-5p/TGF-β/SMAD2/3 Pathway. Front Oncol 2021; 11:626620. [PMID: 33937030 PMCID: PMC8079788 DOI: 10.3389/fonc.2021.626620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/04/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Colorectal cancer (CRC), the most commonly diagnosed cancer in the world, has a high mortality rate. In recent decades, long non-coding RNAs (lncRNAs) have been proven to exert an important effect on CRC growth. However, the CTBP1-AS2 expression and function in CRC are largely unknown. Materials and Methods: The CTBP1-AS2 and miR-93-5p expression in CRC and para-cancerous tissues was detected by reverse transcription-PCR. The expression of CTBP1-AS2, miR-93-5p and the transforming growth factor-beta (TGF-β)/small mothers against decapentaplegic 2/3 (SMAD2/3) pathway was selectively regulated to study the correlation between CTBP1-AS2 expression and prognosis of patients with CRC. CRC cell proliferation, apoptosis, and invasion were measured in vivo and in vitro. In addition, bioinformatics was applied to explore the targeting relationship between CTBP1-AS2 and miR-93-5p. The targeting binding sites between CTBP1-AS2 and miR-93-5p, as well as between miR-93-5p and TGF-β, were verified by the dual-luciferase reporter assay and the RNA immunoprecipitation experiment. Results: Compared with normal para-cancerous tissues, CTBP1-AS2 was considerably overexpressed in CRC tissues and was closely associated with worse survival of patients with CRC. Functionally, gain and loss in experiments illustrated that CTBP1-AS2 accelerated CRC cell proliferation and invasion and inhibited cell apoptosis. Mechanistically, CTBP1-AS2 regulated the malignant phenotype of tumor cells through the TGF-β/SMAD2/3 pathway. Moreover, miR-93-5p, as an endogenous competitive RNA of CTBP1-AS2, attenuated the oncogenic effects mediated by CTBP1-AS2. Conclusion: CTBP1-AS2 promotes the TGF-β/SMAD2/3 pathway activation by inhibiting miR-93-5p, thereby accelerating CRC development.
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Affiliation(s)
- Qiankun Li
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Wenjing Yue
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Ming Li
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Zhipeng Jiang
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zehui Hou
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wei Liu
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ning Ma
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenchang Gan
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yingru Li
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Taicheng Zhou
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenjing Yue
- Department of Gastroenterology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Shuang Chen
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, Department of Gastrointestinal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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174
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Lan Y, Liu B, Guo H. The role of M 6A modification in the regulation of tumor-related lncRNAs. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 24:768-779. [PMID: 33996258 PMCID: PMC8094576 DOI: 10.1016/j.omtn.2021.04.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
N6-methyladenosine (m6A) is the most abundant modification in eukaryotic cells, and it regulates RNA transcription, processing, splicing, degradation, and translation. Long non-coding RNAs (lncRNAs), as transcriptional products with no or limited protein coding ability more than 200 nt in length, play an important role in epigenetic modification, mRNA transcription, splicing, stability, translation, and other biological functions. Extensive studies have shown that both m6A modification and lncRNAs are involved in the pathogenesis of various diseases, such as kinds of cancers, heart failure, Alzheimer’s disease, periodontitis, human abdominal aortic aneurysm, and obesity. To date, m6A modification has been identified as an important biological function in enrichment and regulation of lncRNAs. In this review, we summarize the role of m6A modification in the regulation and function of tumor-related lncRNAs. Moreover, we discuss the potential applications and possible future directions in the field.
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Affiliation(s)
- Yufei Lan
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Boyang Liu
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Hongbo Guo
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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175
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Knockdown of LncRNA CRNDE suppresses proliferation and P-glycoprotein-mediated multidrug resistance in acute myelocytic leukemia through the Wnt/β-catenin pathway. Biosci Rep 2021; 40:224732. [PMID: 32426817 PMCID: PMC7273914 DOI: 10.1042/bsr20193450] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 04/09/2020] [Accepted: 05/13/2020] [Indexed: 12/29/2022] Open
Abstract
Mechanisms involved in non-coding RNAs have been implicated in multidrug resistance (MDR) of acute myeloid leukemia (AML). Long non-coding RNA (lncRNAs) colorectal neoplasia differentially expressed (CRNDE) is reported to be involved in the malignant progression in AML. The purpose of the present study is to explore the roles and potential molecular mechanism of CRNDE in the MDR in AML. In our study, we confirmed that the expression of CRNDE was significantly up-regulated in patients with AML, especially in AML patients after adriamycin (ADR)-based chemotherapy. Spearman correlation analysis showed a positive correlation between the levels of CRNDE and MDR1 in AML patients after ADR-based chemotherapy. Moreover, CRNDE was up-regulated in AML cells, especially in ADR-resistant AML cells. Multidrug resistance protein 1 (MDR1)/p-glycoprotein (P-gp) levels were significantly increased in ADR-resistant AML cells, compared with parental AML cells. CRNDE down-regulation inhibited cell proliferation, promoted apoptosis, reduced Ki67 expression and enhanced cleaved caspase-3 expression in AML and ADR-resistant AML cells. In addition, CRNDE knockdown led to down-regulation of P-gp/MDR1, β-catenin, c-Myc and cyclinD1 expression, and enhanced the drug sensitivity to ADR in ADR-resistant AML cells. In conclusion, knockdown of CRNDE suppresses proliferation and P-gp-mediated MDR in ADR-resistant AML cells via inhibiting the Wnt/β-catenin pathway, suggesting that repression of CRNDE might be a therapeutic target to reverse MDR of ADR-resistant AML cells.
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176
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Zhang J, Xu X, Yin J, Tang J, Hu N, Hong Y, Song Z, Bian B, Wu F. lncRNA OGFRP1 promotes tumor progression by activating the AKT/mTOR pathway in human gastric cancer. Aging (Albany NY) 2021; 13:9766-9779. [PMID: 33744848 PMCID: PMC8064230 DOI: 10.18632/aging.202731] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 10/20/2020] [Indexed: 12/14/2022]
Abstract
As biomolecules of great clinical value, lncRNAs play a crucial role as regulators in the processes of tumor origin, metastasis, and recurrence. Thus, lncRNAs are urgently needed for research in gastric cancer. We elucidated the specific function of OGFRP1, both in vitro and in vivo. OGFRP1 was expressed at abnormally high levels in gastric cancer samples (n = 408) compared to normal samples (n = 211). Similar results were obtained in 30 clinical case samples. Interference of OGFRP1 markedly blocked cell proliferation and migration, and it induced cell cycle arrest and the apoptosis of gastric cancer cells in vitro. Phosphorylation of AKT was inhibited in cells transfected with OGFRP1 siRNA, as compared to their control cells. The in vivo results further confirmed the antitumor effects of OGFRP1 knockdown on gastric cancer. Decreases in tumor volume (104.23±62.27 mm3) and weight (0.1006±0.0488 g) in nude mice were observed during the OGFRP1 interference, as compared with the control group (418.96±211.96 mm3 and 0.2741±0.0769 g). OGFRP1 promotes tumor progression through activating the AKT/mTOR pathway. Our findings provide a new potential target for the clinical treatment of human gastric cancer.
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Affiliation(s)
- Jingzhou Zhang
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Xiujuan Xu
- Department of Radiation Oncology, Lianyungang Second People's Hospital, Lianyungang, China
| | - Junfeng Yin
- Department of General Surgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Jiaqi Tang
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Nan Hu
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Yidong Hong
- Deparment of Oncology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ziyan Song
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Baoxiang Bian
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Fenglei Wu
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, The First People's Hospital of Lianyungang, Lianyungang, China
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Song X, Xue Y, Cai H. Down-Regulation of miR-181a-5p Prevents Cerebral Ischemic Injury by Upregulating En2 and Activating Wnt/β-catenin Pathway. J Stroke Cerebrovasc Dis 2021; 30:105485. [PMID: 33360253 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105485] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/05/2020] [Accepted: 11/16/2020] [Indexed: 12/14/2022] Open
Abstract
PURPOSE Cerebral ischemic injury contributes to severe dysfunction of the brain, which triggers extremely high mortality and disability. The role of microRNA (miR)-181a-5p is documented in cerebral ischemic injury. Therefore, this study intended to further figure out the mechanism of miR-181a-5p in cerebral ischemic injury. METHODS miR-181a-5p expression in middle cerebral artery occlusion (MCAO) mouse model, oxygen-glucose-deprivation/reoxygenation (OGD/R) N2a cell model, and serum from acute ischemic injury (ACI) patients was evaluated using reverse transcription quantitative polymerase chain reaction (RT-qPCR). Gain- and loss-of-function assays were implemented in MCAO mice and OGD/R-induced N2a cells. In mice, the cerebral infarction area was assessed with 2,3,5-triphenyltetrazolium chloride staining, the number of damaged neurons by Nissl staining, and apoptosis by TdT-mediated dUTP-biotin nick end-labeling staining. Moreover, N2a cell apoptosis and proliferation were determined with flow cytometry or 5-ethynyl-2'-deoxyuridine staining, respectively. The expression of En2 and Wnt/β-catenin pathway-related factors was determined with RT-qPCR and Western blot analysis. The targeting relationship between miR-181a-5p and En2 was evaluated by dual luciferase reporter gene assay. RESULTS miR-181a-5p was highly expressed in serum of ACI patients, MCAO mice, and OGD/R-induced N2a cells. En2, lowly expressed in MCAO mice, was targeted by miR-181a-5p, and miR-181a-5p down-regulation activated the Wnt/β-catenin pathway. Furthermore, miR-181a-5p inhibition or En2 overexpression reduced cerebral infarction area, the number of damaged neurons, and apoptosis in MCAO mice, and also diminished apoptosis and accelerated proliferation of OGD/R-induced N2a cells. CONCLUSION miR-181a-5p suppression activated Wnt/β-catenin pathway and sequentially attenuated cerebral ischemic injury by targeting En2.
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Affiliation(s)
- Xiaoming Song
- Department of Neurology, Ningbo Yinzhou No. 2 Hospital, Ningbo 315100, P.R. China.
| | - Yongming Xue
- Department of Ultrasound imaging, Ningbo Women & Children's Hospital, Ningbo 315000, P.R. China
| | - Hairui Cai
- Department of Obstetrics and Gynecology, Ningbo Women & Children's Hospital, Ningbo 315000, P.R. China
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178
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Liu H, Zhang M, Shi M, Zhang T, Zhang Z, Cui Q, Yang S, Li Z. A Survival-Related Competitive Endogenous RNA Network of Prognostic lncRNAs, miRNAs, and mRNAs in Wilms Tumor. Front Oncol 2021; 11:608433. [PMID: 33718161 PMCID: PMC7953909 DOI: 10.3389/fonc.2021.608433] [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: 09/20/2020] [Accepted: 01/25/2021] [Indexed: 12/20/2022] Open
Abstract
Wilms tumor (WT) commonly occurs in infants and children. We evaluated clinical factors and the expression of multiple RNAs in WT samples in the TARGET database. Eight long non-coding RNAs (lncRNAs; AC079310.1, MYCNOS, LINC00271, AL445228.3, Z84485.1, AC091180.5, AP002518.2, and AC007879.3), two microRNAs (miRNAs; hsa-mir-152 andhsa-mir-181a), and nine messenger RNAs (mRNAs; TCTEX1D4, RNF133, VRK1, CCNE1, HEY1, C10orf71, SPRY1, SPAG11A, and MAGEB18) were screened from differentially expressed RNAs and used to construct predictive survival models. These models showed good prognostic ability and were highly correlated with tumor stage and histological classification. Additionally, survival-related ceRNA network was constructed using 35 RNAs (15 lncRNAs, eight miRNAs, and 12 mRNAs). KEGG pathway analysis suggested the "Wnt signaling pathway" and "Cellular senescence" as the main pathways. In conclusion, we established a multinomial predictive survival model and a survival-related ceRNA network, which provide new potential biomarkers that may improve the prognosis and treatment of WT patients.
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Affiliation(s)
- HengChen Liu
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - MingZhao Zhang
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - ManYu Shi
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - TingTing Zhang
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - ZeNan Zhang
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - QingBo Cui
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - ShuLong Yang
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
| | - ZhaoZhu Li
- Department of Pediatric Surgery, The Second Hospital Affiliated to Harbin Medical University, Harbin, China
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179
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Liao Z, Nie H, Wang Y, Luo J, Zhou J, Ou C. The Emerging Landscape of Long Non-Coding RNAs in Colorectal Cancer Metastasis. Front Oncol 2021; 11:641343. [PMID: 33718238 PMCID: PMC7947863 DOI: 10.3389/fonc.2021.641343] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/29/2021] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common gastrointestinal cancers, with extremely high rates of morbidity and mortality. The main cause of death in CRC is distant metastasis; it affects patient prognosis and survival and is one of the key challenges in the treatment of CRC. Long non-coding RNAs (lncRNAs) are a group of non-coding RNA molecules with more than 200 nucleotides. Abnormal lncRNA expression is closely related to the occurrence and progression of several diseases, including cancer. Recent studies have shown that numerous lncRNAs play pivotal roles in the CRC metastasis, and reversing the expression of these lncRNAs through artificial means can reduce the malignant phenotype of metastatic CRC to some extent. This review summarizes the major mechanisms of lncRNAs in CRC metastasis and proposes lncRNAs as potential therapeutic targets for CRC and molecular markers for early diagnosis.
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Affiliation(s)
- Zhiming Liao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Hui Nie
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Yutong Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Jingjing Luo
- Teaching and Research Room of Biochemistry and Molecular Biology, Medical School of Hunan University of Traditional Chinese Medicine, Changsha, China
| | - Jianhua Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Chunlin Ou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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180
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Si Z, Yu L, Jing H, Wu L, Wang X. Oncogenic lncRNA ZNF561-AS1 is essential for colorectal cancer proliferation and survival through regulation of miR-26a-3p/miR-128-5p-SRSF6 axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:78. [PMID: 33622363 PMCID: PMC7903733 DOI: 10.1186/s13046-021-01882-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/15/2021] [Indexed: 02/06/2023]
Abstract
Background Long non-coding RNAs (lncRNA) are reported to influence colorectal cancer (CRC) progression. Currently, the functions of the lncRNA ZNF561 antisense RNA 1 (ZNF561-AS1) in CRC are unknown. Methods ZNF561-AS1 and SRSF6 expression in CRC patient samples and CRC cell lines was evaluated through TCGA database analysis, western blot along with real-time PCR. SRSF6 expression in CRC cells was also examined upon ZNF561-AS1 depletion or overexpression. Interaction between miR-26a-3p, miR-128-5p, ZNF561-AS1, and SRSF6 was examined by dual luciferase reporter assay, as well as RNA binding protein immunoprecipitation (RIP) assay. Small interfering RNA (siRNA) mediated knockdown experiments were performed to assess the role of ZNF561-AS1 and SRSF6 in the proliferative actives and apoptosis rate of CRC cells. A mouse xenograft model was employed to assess tumor growth upon ZNF561-AS1 knockdown and SRSF6 rescue. Results We find that ZNF561-AS1 and SRSF6 were upregulated in CRC patient tissues. ZNF561-AS1 expression was reduced in tissues from treated CRC patients but upregulated in CRC tissues from relapsed patients. SRSF6 expression was suppressed and enhanced by ZNF561-AS1 depletion and overexpression, respectively. Mechanistically, ZNF561-AS1 regulated SRSF6 expression by sponging miR-26a-3p and miR-128-5p. ZNF561-AS1-miR-26a-3p/miR-128-5p-SRSF6 axis was required for CRC proliferation and survival. ZNF561-AS1 knockdown suppressed CRC cell proliferation and triggered apoptosis. ZNF561-AS1 depletion suppressed the growth of tumors in a model of a nude mouse xenograft. Similar observations were made upon SRSF6 depletion. SRSF6 overexpression reversed the inhibitory activities of ZNF561-AS1 in vivo, as well as in vitro. Conclusion In summary, we find that ZNF561-AS1 promotes CRC progression via the miR-26a-3p/miR-128-5p-SRSF6 axis. This study reveals new perspectives into the role of ZNF561-AS1 in CRC. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01882-1.
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Affiliation(s)
- Zizhen Si
- Pharmacy Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, People's Republic of China.,Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, People's Republic of China
| | - Lei Yu
- Department of Colorectal Cancer Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China
| | - Haoyu Jing
- Department of Colorectal Cancer Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China
| | - Lun Wu
- Pharmacy Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, People's Republic of China
| | - Xidi Wang
- Department of Biochemistry and Molecular Biology, Harbin Medical University, 194 XueFu Road Nangang Dist, Harbin, 150086, People's Republic of China.
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Ye J, Liu J, Tang T, Xin L, Bao X, Yan Y. LINC00963 affects the development of colorectal cancer via MiR-532-3p/HMGA2 axis. Cancer Cell Int 2021; 21:87. [PMID: 33536018 PMCID: PMC7860506 DOI: 10.1186/s12935-020-01706-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023] Open
Abstract
Background LINC00963 is high-expressed in various carcinomas, but its expression and function in colorectal cancer (CRC) have not been explored. This study explored the role and mechanism of LINC00963 in CRC. Methods The expression of LINC00963 in CRC and its relationship with prognosis were examined by starBase and survival analysis. The effects of LINC00963, miR-532-3p and HMGA2 on the biological characteristics and EMT-related genes of CRC cells were studied by RT-qPCR, CCK-8, clone formation experiments, flow cytometry, scratch test, Transwell, and Western blot. Xenograft assay and immunohistochemistry were performed to verify the effect of LINC00963 on tumor growth. The correlation among LINC00963, miR-532-3p, and HMGA2 was analyzed by bioinformatics analysis, luciferase assay, and Pearson test. Results LINC00963 was high-expressed in CRC, and this was associated with poor prognosis of CRC. Silencing LINC00963 inhibited the activity, proliferation, migration, and invasion of CRC cells, MMP-3 and MMP-9 expressions, moreover, it also blocked cell cycle progression, and inhibited tumor growth and Ki67 expression. However, overexpression of LINC00963 showed the opposite effects to silencing LINC00963. LINC00963 targeted miR-532-3p to regulate HMGA2 expression. Down-regulation of miR-532-3p promoted cell proliferation, migration and invasion, and expressions of MMP-3 and MMP-9, and knockdown of HMGA2 reversed the effect of miR-532-3p inhibitor. Up-regulation of miR-532-3p inhibited the biological functions of CRC cells, and overexpression of HMGA2 reversed the miR-532-3p mimic effect. Conclusion LINC00963 affects the development of CRC through the miR-532-3p/HMGA2 axis.
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Affiliation(s)
- Jinjun Ye
- Department of General Surgery, Shenzhen Longgang Central Hospital, No.6082 Longgang Avenue, Longgang District, Shenzhen, 518116, Guangdong, China
| | - Jidong Liu
- Department of General Surgery, Shenzhen Longgang Central Hospital, No.6082 Longgang Avenue, Longgang District, Shenzhen, 518116, Guangdong, China
| | - Tao Tang
- Department of General Surgery, Shenzhen Longgang Central Hospital, No.6082 Longgang Avenue, Longgang District, Shenzhen, 518116, Guangdong, China
| | - Le Xin
- Department of General Surgery, Shenzhen Longgang Central Hospital, No.6082 Longgang Avenue, Longgang District, Shenzhen, 518116, Guangdong, China
| | - Xing Bao
- Department of General Surgery, Shenzhen Longgang Central Hospital, No.6082 Longgang Avenue, Longgang District, Shenzhen, 518116, Guangdong, China
| | - Yukuang Yan
- Department of General Surgery, Shenzhen Longgang Central Hospital, No.6082 Longgang Avenue, Longgang District, Shenzhen, 518116, Guangdong, China.
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182
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Yu Y, Wang L, Li Z, Zheng Y, Shi Z, Wang G. Long noncoding RNA CRNDE functions as a diagnostic and prognostic biomarker in osteosarcoma, as well as promotes its progression via inhibition of miR-335-3p. J Biochem Mol Toxicol 2021; 35:e22734. [PMID: 33522065 DOI: 10.1002/jbt.22734] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/28/2020] [Accepted: 01/20/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND This study was performed to evaluate the diagnostic and prognostic value, as well as the role of long-chain noncoding RNA (lncRNA) colorectal neoplasia differentially expressed (CRNDE) in osteosarcoma (OS). MATERIALS AND METHODS A quantitative real-time polymerase chain reaction assay was to determine lncRNA CRNDE and microRNA-335-3p (miR-335-3p) expressions. The Kaplan-Meier analysis was to analyze the relationship between lncRNA CRNDE expression and survival in patients with OS. Receiver operating characteristic curves were to evaluate the diagnostic value of lncRNA CRNDE in OS. Bioinformatics analysis and luciferase reporter assays were used to predict and confirm the relationship between lncRNA CRNDE and miR-335-3p. Cell counting Kit-8 and transwell migration assays assessed the role of lncRNA CRNDE and miR-335-3p in OS cells. RESULTS lncRNA CRNDE expression was upregulated and miR-355-3p expression was downregulated in OS. In patients with OS, low lncRNA CRNDE expression demonstrated higher overall survival, whereas high lncRNA CRNDE expression was an independent poor prognostic factor. Furthermore, increased lncRNA CRNDE expression was associated with distant metastasis and the tumor-node-metastasis stage in patients with OS, which can be considered as an independent diagnostic biomarker in OS. We revealed that miR-335-3p was the target of lncRNA CRNDE. It also demonstrated that knockdown of lncRNA CRNDE inhibited OS cell proliferation, migration, and invasion, and inhibition of miR-355-3p promoted this effect. Finally, miR-335-3p partially mediated the stimulatory effects of lncRNA CRNDE in OS. CONCLUSION We demonstrated that lncRNA CRNDE is a potential diagnostic and prognostic biomarker for OS, and the lncRNA CRNDE/miR-335-3p axis participates in OS progression.
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Affiliation(s)
| | - Leiming Wang
- Department of Laboratory, Zhengzhou Orthopedic Hospital, Zhengzhou, China
| | - Zijun Li
- Department of Laboratory, Zhengzhou Orthopedic Hospital, Zhengzhou, China
| | - Yan Zheng
- Department of Laboratory, Zhengzhou Orthopedic Hospital, Zhengzhou, China
| | - Zhisong Shi
- Department of Orthopedic Surgery, Zhumadian Central Hospital, Zhumadian, China
| | - Guanghui Wang
- Department of Orthopedic Surgery, Zhumadian Central Hospital, Zhumadian, China
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Sun J, Jia H, Bao X, Wu Y, Zhu T, Li R, Zhao H. Tumor exosome promotes Th17 cell differentiation by transmitting the lncRNA CRNDE-h in colorectal cancer. Cell Death Dis 2021; 12:123. [PMID: 33495437 PMCID: PMC7835218 DOI: 10.1038/s41419-020-03376-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023]
Abstract
The T helper 17 (Th17) cells in tumor microenvironment play an important role in colorectal cancer (CRC) progression. This study investigated the mechanism of Th17 cell differentiation in CRC with a focus on the role of tumor exosome-transmitted long noncoding RNA (lncRNA). Exosomes were isolated from the CRC cells and serum of CRC patients. The role and mechanism of the lncRNA CRNDE-h transmitted by CRC exosomes in Th17 cell differentiation were assessed by using various molecular biological methods. The serum exosomal CRNDE-h level was positively correlated with the proportion of Th17 cells in the tumor-infiltrating T cells in CRC patients. CRC exosomes contained abundant CRNDE-h and transmitted them to CD4+ T cells to increase the Th17 cell proportion, RORγt expression, and IL-17 promoter activity. The underlying mechanism is that, CRNDE-h bound to the PPXY motif of RORγt and impeded the ubiquitination and degradation of RORγt by inhibiting its binding with the E3 ubiquitin ligase Itch. The in vivo experiments confirmed that the targeted silence of CRNDE-h in CD4+ T cells attenuated the CRC tumor growth in mice. The present findings demonstrated that the tumor exosome transmitted CRNDE-h promoted Th17 cell differentiation by inhibiting the Itch-mediated ubiquitination and degradation of RORγt in CRC, expanding our understanding of Th17 cell differentiation in CRC.
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Affiliation(s)
- Junfeng Sun
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Haowei Jia
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xingqi Bao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yue Wu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Tianyu Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Ruixin Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Hongchao Zhao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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Qu L, Chen Y, Zhang F, He L. The lncRNA DLGAP1-AS1/miR-149-5p/TGFB2 axis contributes to colorectal cancer progression and 5-FU resistance by regulating smad2 pathway. MOLECULAR THERAPY-ONCOLYTICS 2021; 20:607-624. [PMID: 33816780 PMCID: PMC7985718 DOI: 10.1016/j.omto.2021.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 01/10/2021] [Indexed: 02/06/2023]
Abstract
Colorectal carcinoma (CRC) ranks as the third most common malignancy. Long non-coding RNA DLGAP1-AS1 was reported to be dysregulated and to play a pivotal role in hepatocellular carcinoma (HCC). This work aims to analyze the functions and molecular basis of DLGAP1-AS1 in CRC progression and 5-fluorouracil resistance. Cell Counting Kit-8 (CCK-8) assay, Transwell assay, flow cytometry, and western blot were utilized to measure the CRC cell activity, invasiveness, and apoptosis. RNA immunoprecipitation (RIP) and dual-luciferase reporter gene assay were adopted to verify the direct mutual action between DLGAP1-AS1 and miR-149-5p. The effect of DLGAP1-AS1 knockdown on tumor growth and chemosensitivity of 5-fluorouracil (5-FU) were investigated in the mouse CRC xenograft models. Functional assays showed that silencing DLGAP1-AS1 expression remarkably inhibited cell proliferation and aggressiveness ability and enhanced apoptosis rate and cell chemosensitivity to 5-FU. In addition, miR-149-5p was identified as a tumor suppressor and a direct downstream target of DLGAP1-AS1 in CRC. Furthermore, miR-149-5p was confirmed to directly bind to TGFB2 and DLGAP1-AS1 could regulate the expression of TGFB2 signaling pathway via miR-149-5p in CRC. These new findings indicate that DLGAP1-AS1 knockdown inhibited the progression of CRC and enhanced the 5-FU sensitivity of CRC cells through miR-149-5p/TGFB2 regulatory axis, suggesting that DLGAP1-AS1 may be a promising therapeutic target for CRC.
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Affiliation(s)
- Linlin Qu
- Department of Laboratory Medicine, The First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Yan Chen
- Department of Gastrointestinal Surgery, The First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Fan Zhang
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Liang He
- Department of Gastrointestinal Surgery, The First Hospital of Jilin University, Changchun 130021, Jilin, China
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Silencing lncRNA DUXAP8 inhibits lung adenocarcinoma progression by targeting miR-26b-5p. Biosci Rep 2021; 41:227120. [PMID: 33269379 PMCID: PMC7791543 DOI: 10.1042/bsr20200884] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 12/16/2022] Open
Abstract
Lung adenocarcinoma (LUAD), a common type of lung cancer, has become a popularly aggressive cancer. Long noncoding RNAs (lncRNAs) play a critical role in the pathogenesis of human cancers, while the function of double homeobox A pseudogene 8 (DUXAP8) in LUAD remains to be fully inquired. Therefore, our study was conducted to elucidate the DUXAP8 expression in LUAD and its mechanism on the biological features of LUAD cells. Loss-of-function experiments were performed to assess the function of DUXAP8 proliferation and apoptosis of H1975 and A549 cells. Functionally, silencing DUXAP8 inhibited proliferation and induced apoptosis of LUAD cells. Mechanistically, further correlation assay indicated a negative association between miR-26b-5p and DUXAP8 expression. Subsequently, we testified that DUXAP8 exerted its role in the progression and development of LUAD through targeting miR-26b-5p. In summary, our results elucidated that that DUXAP8 promoted tumor progression in LUAD by targeting miR-26b-5p, which provide a novel therapeutic target for diagnosis and therapy of LUAD.
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186
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Sun C, Xiao T, Xiao Y, Li Y. Silencing of long non‑coding RNA NEAT1 inhibits hepatocellular carcinoma progression by downregulating SMO by sponging microRNA‑503. Mol Med Rep 2021; 23:168. [PMID: 33398379 PMCID: PMC7821340 DOI: 10.3892/mmr.2020.11807] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 11/13/2020] [Indexed: 12/28/2022] Open
Abstract
Hepatocellular carcinoma (HCC) poses an increasing threat to humans, due to its poor prognosis. Nuclear‑enriched abundant transcript 1 (NEAT1), a type of long non‑coding (lnc)RNA, has been found to function in a variety of cancer types. However, the role of NEAT1 in HCC is poorly understood. Reverse transcription‑quantitative PCR was used to detect the expression levels of NEAT1, microRNA (miR)‑503 and Smoothened (SMO) mRNA in HCC tissues and cells. MTT and flow cytometry assays were used to investigate cell viability and apoptosis, respectively, while Transwell assays were performed to investigate cell invasion and migration. StarBase and TargetScan were utilized to predict the target sequence between miR‑503 and NEAT1 or SMO, the results of which were verified using a dual‑luciferase reporter assay. The protein expression level of SMO was measured using western blot. The RNA expression level of NEAT1 and SMO was significantly elevated in HCC tissues and cells compared with that in the corresponding healthy tissues and cells, which was contrary to miR‑503 expression level. NEAT1 silencing was found to restrict the viability, migration and invasion of the cells, while simultaneously induced apoptosis in the HCC cell line. Further studies found that miR‑503 expression was negatively correlated with NEAT1 or SMO. It was also confirmed that NEAT1 directly interacted with miR‑503 and miR‑503 could bind to the 3'‑untranslated region of SMO. Furthermore, overexpression of NEAT1 or SMO could reverse the effects of miR‑503‑mediated inhibition on cell viability, invasion, migration and promotion of apoptosis in the HCC cell lines. These results demonstrated that downregulation of NEAT1 impeded the viability, migration, invasion and induced apoptosis through the NEAT1/miR‑503/SMO axis in the HCC cell line.
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Affiliation(s)
- Chuihua Sun
- Department of Intensive Care Unit, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Ting Xiao
- Department of Infectious Diseases, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Ying Xiao
- Department of Ultrasound, 960 Hospital of The Chinese People's Liberation Army, Tai'an Hospital, Tai'an, Shandong 271000, P.R. China
| | - Yunbao Li
- Department of Clinical Laboratory, Jinan Chain Medical Laboratory Co., Ltd., Jinan, Shandong 250000, P.R. China
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187
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Qi Z, Yalikong A, Zhang J, Cai S, Li B, Di S, Lv Z, Xu E, Zhong Y, Zhou P. HDAC2 promotes the EMT of colorectal cancer cells and via the modular scaffold function of ENSG00000274093.1. J Cell Mol Med 2021; 25:1190-1197. [PMID: 33325150 PMCID: PMC7812252 DOI: 10.1111/jcmm.16186] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 09/26/2020] [Accepted: 11/22/2020] [Indexed: 12/17/2022] Open
Abstract
Histone deacetylase 2 (HDAC2), a member of the Histone deacetylase family, plays a vital role in various carcinomas. In this study, we identified that HDAC2 expression levels are associated with liver metastasis, higher T stages and poor prognosis in colorectal cancer. HDAC2 down-regulation via lentivirus-mediated expression of HDAC2-targeting shRNA reduced the in vitro migration and invasion ability of HCT116 cell as well as their liver metastasis in nude mouse xenografts. Mechanistically, HDAC2 promotes epithelial-mesenchymal transition (EMT) in colorectal cancer cells by combining HDAC1 with EZH2 (a key histone methyltransferase), possibly through the modular scaffold function of a new lncRNA, ENSG00000274093.1. HDAC2 thus appears to promote CRC cell migration and invasion through binding HDAC1 and EZH2 via ENSG00000274093.1.
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Affiliation(s)
- Zhi‐Peng Qi
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Ayimukedisi Yalikong
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Jia‐Wei Zhang
- Department of internal medicine of Xuhui HospitalAffiliated Zhongshan HospitalFudan UniversityShanghaiChina
| | - Shi‐Lun Cai
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Bing Li
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Sun Di
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Zhen‑Tao Lv
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - En‐Pan Xu
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Yun‐Shi Zhong
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
| | - Ping‐Hong Zhou
- Endoscopy CenterZhongshan Hospital of Fudan UniversityShanghaiChina
- Endoscopy Research Institute of Fudan UniversityShanghaiChina
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188
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Wang X, Yang S, Lv X, Wang L, Li C. Overexpression of LncRNA SNHG1 Were Suitable for Oncolytic Adenoviruse H101 Therapy in Oral Squamous-Cell Carcinoma. Onco Targets Ther 2020; 13:13033-13039. [PMID: 33376352 PMCID: PMC7762447 DOI: 10.2147/ott.s285536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 11/20/2020] [Indexed: 11/23/2022] Open
Abstract
Background As the most prevalent type of head and neck cancer, oral squamous-cell carcinoma (OSCC) accounts for nearly 90% of all oral cancer cases. Despite great progress having been made in the diagnosis and treatment of OSCC recently, the survival rate of OSCC patients has not risen remarkably. Chemotherapy is commonly used for OSCC treatment; however, the emergence of chemoresistance limits its long-term curative effect. Therefore, identifying effective biomarkers and molecular mechanisms is essential to the development of therapeutic strategies for OSCC. Methods qRT-PCR assays were performed to detect SNHG1 expression in OSCC tissue and cells, and CCK8 assays and animal experiments used to examine cell proliferation. In addition, CCK8 assays were used to detect IC50 values of cisplatin, 5Fu, Dox, and oncolytic adenovirus H101. Results We found that SNHG1 was overexpressed in OSCC tissue and cells and was associated with OSCC progression. In addition, knockdown of SNHG1 suppressed cell proliferation in vitro and in vivo. Importantly, we found that oncolytic adenovirus H101 showed better antitumor effects in OSCC with high SNHG1 expression, and chemotherapy showed worse anti-tumor effects in OSCC with high SNHG1 expression. Conclusion SNHG1 can act as a diagnostic biomarker for OSCC, and may be a biomarker for treatment options.
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Affiliation(s)
- Xin Wang
- Department of Plastic Maxillofacial Surgery, Heilongjiang Provincial Hospital, Harbin 150036, Heilongjiang, People's Republic of China
| | - Song Yang
- Department of Plastic Maxillofacial Surgery, Heilongjiang Provincial Hospital, Harbin 150036, Heilongjiang, People's Republic of China
| | - Xuechao Lv
- Department of Pediatric Dentistry, School of Stomatology, Harbin Medical University, Harbin 150001, Heilongjiang, People's Republic of China
| | - Lina Wang
- Department of Oral and Maxillofacial Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, People's Republic of China
| | - Chunmei Li
- Department of Outpatient Stomatology, Heilongjiang Provincial Hospital, Harbin 150036, Heilongjiang, People's Republic of China
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189
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Cáceres-Durán MÁ, Ribeiro-dos-Santos Â, Vidal AF. Roles and Mechanisms of the Long Noncoding RNAs in Cervical Cancer. Int J Mol Sci 2020; 21:ijms21249742. [PMID: 33371204 PMCID: PMC7766288 DOI: 10.3390/ijms21249742] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/03/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
Cervical cancer (CC) continues to be one of the leading causes of death for women across the world. Although it has been determined that papillomavirus infection is one of the main causes of the etiology of the disease, genetic and epigenetic factors are also required for its progression. Among the epigenetic factors are included the long noncoding RNAs (lncRNAs), transcripts of more than 200 nucleotides (nt) that generally do not code for proteins and have been associated with diverse functions such as the regulation of transcription, translation, RNA metabolism, as well as stem cell maintenance and differentiation, cell autophagy and apoptosis. Recently, studies have begun to characterize the aberrant regulation of lncRNAs in CC cells and tissues, including Homeobox transcript antisense RNA (HOTAIR), H19, Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), Cervical Carcinoma High-Expressed 1 (CCHE1), Antisense noncoding RNA in the inhibitors of cyclin-dependent kinase 4 (ANRIL), Growth arrest special 5 (GAS5) and Plasmacytoma variant translocation 1 (PVT1). They have been associated with several disease-related processes such as cell growth, cell proliferation, cell survival, metastasis and invasion as well as therapeutic resistance, and are novel potential biomarkers for diagnosis and prognosis in CC. In this review, we summarize the current literature regarding the knowledge we have about the roles and mechanisms of the lncRNAs in cervical neoplasia.
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Affiliation(s)
- Miguel Ángel Cáceres-Durán
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Graduate Program of Genetics and Molecular Biology, Federal University of Pará, Belém 66075-110, Brazil; (M.Á.C.-D.); (Â.R.-d.-S.)
| | - Ândrea Ribeiro-dos-Santos
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Graduate Program of Genetics and Molecular Biology, Federal University of Pará, Belém 66075-110, Brazil; (M.Á.C.-D.); (Â.R.-d.-S.)
- Graduate Program in Oncology and Medical Sciences, Center of Oncology Researches, Federal University of Pará, Belém 66073-005, Brazil
| | - Amanda Ferreira Vidal
- Laboratory of Human and Medical Genetics, Institute of Biological Sciences, Graduate Program of Genetics and Molecular Biology, Federal University of Pará, Belém 66075-110, Brazil; (M.Á.C.-D.); (Â.R.-d.-S.)
- Correspondence: ; Tel.: +55-91-3201-7843
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190
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Novel Genetic and Epigenetic Biomarkers of Prognostic and Predictive Significance in Stage II/III Colorectal Cancer. Mol Ther 2020; 29:587-596. [PMID: 33333293 DOI: 10.1016/j.ymthe.2020.12.017] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/15/2020] [Accepted: 12/09/2020] [Indexed: 12/18/2022] Open
Abstract
The therapeutic strategies of stage II/III colorectal cancer (CRC) patients after curative surgery remain controversial. In the clinical decision-making process, oncologists need to answer questions such as whether adjuvant chemotherapy is necessary or which therapeutic regimen should be given to each patient. At present, whether adjuvant chemotherapy should be applied is primarily based on histopathological features and clinical risk factors. However, only a fraction of patients can benefit from it. More rigorous stratifying biomarkers are urgently needed to help further distinguishing these populations of patients. Recent progress in next-generation sequencing and high-throughput technologies has greatly promoted biomarker discovery as well as our understanding of the underlying mechanisms in CRC. Novel genetic and epigenetic biomarkers that are associated with prognosis or therapeutic responses have emerged. In this review, we discuss the strategies of biomarker discovery and summarize the status and assess the utility of previously published biomarkers in CRC.
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191
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Zhu GX, Gao D, Shao ZZ, Chen L, Ding WJ, Yu QF. Wnt/β‑catenin signaling: Causes and treatment targets of drug resistance in colorectal cancer (Review). Mol Med Rep 2020; 23:105. [PMID: 33300082 PMCID: PMC7723170 DOI: 10.3892/mmr.2020.11744] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common malignant tumor in humans. Chemotherapy is used for the treatment of CRC. However, the effect of chemotherapy remains unsatisfactory due to drug resistance. Growing evidence has shown that the presence of highly metastatic tumor stem cells, regulation of non-coding RNAs and the tumor microenvironment contributes to drug resistance mechanisms in CRC. Wnt/β-catenin signaling mediates the chemoresistance of CRC in these three aspects. Therefore, the present study analyzed the abundant evidence of the contribution of Wnt/β-catenin signaling to the development of drug resistance in CRC and discussed its possible role in improving the chemosensitivity of CRC, which may provide guidelines for its clinical treatment.
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Affiliation(s)
- Gui-Xian Zhu
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Dian Gao
- Department of Pathogen Biology and Immunology, Medical College of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhao-Zhao Shao
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Li Chen
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Wen-Jie Ding
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qiong-Fang Yu
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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192
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Long Noncoding RNA MALAT1 Promotes Colorectal Cancer Progression by Acting as a ceRNA of miR-508-5p to Regulate RAB14 Expression. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4157606. [PMID: 33344634 PMCID: PMC7732393 DOI: 10.1155/2020/4157606] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 05/01/2020] [Accepted: 06/09/2020] [Indexed: 12/24/2022]
Abstract
Accumulating evidence suggested that lncRNA MALAT1 plays critical roles in the commencement and progression of malignant cancers. Nevertheless, the function of MALAT1 in colorectal cancer (CRC) remains largely unknown. In the present study, we reported that MALAT1 expression is significantly upregulated in CRC and correlated with advanced TNM stage, lymph node metastasis, and worse prognosis in patients. Functional assays revealed that MALAT1 knockdown reduced CRC cell growth and invasion abilities in vitro. Mechanistically, we discovered that MALAT1 may serve as a competing endogenous RNA (ceRNA) to miR-508-5p in CRC progression. Bioinformatics analysis and luciferase assays confirmed that RAB14 acts as a target of miR-508-5p. In addition, downregulation of RAB14 reduced the progression of CRC. Collectively, our findings indicated that MALAT1 could promote CRC progress by sponging miR-508-5p and enhancing RAB14 expression, which provides a therapeutic target in CRC treatment.
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Zhou Y, Liu S, Luo Y, Zhang M, Jiang X, Xiong Y. IncRNA MAPKAPK5-AS1 promotes proliferation and migration of thyroid cancer cell lines by targeting miR-519e-5p/YWHAH. Eur J Histochem 2020; 64. [PMID: 33272009 PMCID: PMC7731578 DOI: 10.4081/ejh.2020.3177] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/20/2020] [Indexed: 12/24/2022] Open
Abstract
Thyroid cancer is a common malignant tumour of the endocrine system and ranks ninth in cancer incidence worldwide. An extensive body of evidence has demonstrated that lncRNAs play a critical role in the progression of thyroid cancer. The lncRNA MAPKAPK5-AS1 has been reported to be abnormally expressed and to play a role in the development of various human cancers. However, MAPKAPK5-AS1's potential role in thyroid cancer progression remains unknown. The objective of our study was to explore the role and mechanism of MAPKAPK5-AS1 in thyroid cancer cells and provide a potential target for its biological diagnosis and treatment. We transfected sh-MAPKAPK5-AS1 and sh-NC into BCPAP and TPC-1 cells for loss-of-function assays. Results of RT-qPCR analysis demonstrated that MAPKAPK5-AS1 was more highly expressed in thyroid cancer cells compared to normal cells. Functional assays demonstrated that interfering with the expression of MAPKAPK5-AS1 notably repressed proliferation and invasion and accelerated apoptosis of BCPAP and TPC-1 cells. Mechanistically, we found that miR-519e-5p was negatively regulated by MAPKAPK5-AS1 and that tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein eta (YWHAH) was a target of miR-519e-5p. Additionally, rescue assays demonstrated that downregulation of MAPKAPK5-AS1 expression inhibited cell proliferation, migration, and invasion and promoted apoptosis by sponging miR-519e-5p, thereby increasing YWHAH expression. Ultimately, our study revealed that MAPKAPK5-AS1 promotes proliferation and migration of thyroid cancer cells by targeting the miR-519e-5p/YWHAH axis, which provides novel insight into the development and progression of thyroid cancer.
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Affiliation(s)
- Yan Zhou
- Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Shanshan Liu
- Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Yan Luo
- Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Meiying Zhang
- Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Xueling Jiang
- Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Nanchang University, Nanchang.
| | - Yan Xiong
- Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Nanchang University, Nanchang.
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194
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Potential miRNA biomarkers for the diagnosis and prognosis of esophageal cancer detected by a novel absolute quantitative RT-qPCR method. Sci Rep 2020; 10:20065. [PMID: 33208781 PMCID: PMC7676265 DOI: 10.1038/s41598-020-77119-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 11/04/2020] [Indexed: 12/29/2022] Open
Abstract
miRNAs are expected to become potential biomarkers in the diagnosis and prognosis of Esophageal cancer (EC). Through a series of screening, miR-34a-5p, miR-148a-3p and miR-181a-5p were selected as EC-associated miRNAs. Based on AllGlo probe, a novel absolute quantitative RT-qPCR method with high sensitivity, specificity and accuracy was established for detecting miRNAs. Then the clinical significance of these 3 miRNAs was explored with 213 patients (166 cases with EC and 47 cases with benign diseases) and 170 normal controls. Compared with normal controls, the level of miR-34a-5p increased while miR-148a-3p and miR-181a-5p decreased in EC and benign patients (P < 0.001), and the level of miR-181a-5p in early EC patients was significantly lower (P < 0.001). According to logistic regression analysis, combined detection of miR-34a-5p, miR-148a-3p and Cyfra21-1 provided the highest diagnosis efficiency of 85.07% with sensitivity and specificity reaching 85.45% and 84.71%. Compared with preoperative samples, the level of miR-34a-5p decreased while miR-148a-3p and miR-181a-5p increased in postoperative samples (P < 0.001). Collectively, this first developed, novel absolute quantitative RT-qPCR method exhibits high application value in detecting miRNAs, miR-34a-5p, miR-148a-3p and miR-181a-5p may serve as potential biomarkers in the diagnosis and prognosis of EC, and miR-181a-5p probably could serve as a new biomarker for early EC.
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195
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Peruhova M, Peshevska-Sekulovska M, Krastev B, Panayotova G, Georgieva V, Konakchieva R, Nikolaev G, Velikova TV. What could microRNA expression tell us more about colorectal serrated pathway carcinogenesis? World J Gastroenterol 2020; 26:6556-6571. [PMID: 33268946 PMCID: PMC7673963 DOI: 10.3748/wjg.v26.i42.6556] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/24/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
In the last two decades, the vision of a unique carcinogenesis model for colorectal carcinoma (CRC) has completely changed. In addition to the adenoma to carcinoma transition, colorectal carcinogenesis can also occur via the serrated pathway. Small non-coding RNA, known as microRNAs (miRNAs), were also shown to be involved in progression towards malignancy. Furthermore, increased expression of certain miRNAs in premalignant sessile serrated lesions (SSLs) was found, emphasizing their role in the serrated pathway progression towards colon cancer. Since miRNAs function as post-transcriptional gene regulators, they have enormous potential to be used as useful biomarkers for CRC and screening in patients with SSLs particularly. In this review, we have summarized the most relevant information about the specific role of miRNAs and their relevant signaling pathways among different serrated lesions and polyps as well as in serrated adenocarcinoma. Additional focus is put on the correlation between gut immunity and miRNA expression in the serrated pathway, which remains unstudied.
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Affiliation(s)
- Milena Peruhova
- Department of Gastroenterology, University Hospital Lozenetz, Sofia 1407, Bulgaria
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
| | | | - Boris Krastev
- Department of Clinical Oncology, MHAT Hospital for Women Health Nadezhda, Sofia 1330, Bulgaria
| | - Gabriela Panayotova
- Department of Gastroenterology, University Hospital Lozenetz, Sofia 1407, Bulgaria
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
| | - Viktoriya Georgieva
- Department of Gastroenterology, University Hospital Lozenetz, Sofia 1407, Bulgaria
| | | | - Georgi Nikolaev
- Faculty of Biology, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
| | - Tsvetelina Veselinova Velikova
- Medical Faculty, Sofia University St. Kliment Ohridski, Sofia 1407, Bulgaria
- Department of Clinical Immunology, University Hospital Lozenetz, Sofia 1407, Bulgaria
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196
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Sun JG, Li XB, Yin RH, Li XF. lncRNA VIM‑AS1 promotes cell proliferation, metastasis and epithelial‑mesenchymal transition by activating the Wnt/β‑catenin pathway in gastric cancer. Mol Med Rep 2020; 22:4567-4578. [PMID: 33173977 PMCID: PMC7646824 DOI: 10.3892/mmr.2020.11577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 07/28/2020] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to explore the biological functions and molecular mechanisms of the long non-coding RNA VIM antisense RNA 1 (VIM-AS1) in gastric cancer (GC). The expression of VIM-AS1 was analyzed in tissues from patients with GC and GC cell lines by reverse transcription-quantitative (RT-q)PCR. The relationship between VIM-AS1 expression and overall survival time of patients with GC was also assessed. To determine the biological functions of VIM-AS1, Cell Counting Kit-8 assay, colony formation assay, flow cytometry, wound healing assay and Transwell assay were employed. The targeting relationship among VIM-AS1, microRNA (miR)-8052 and frizzled 1 (FZD1) was verified by the dual luciferase reporter gene assay. The underlying molecular mechanism of VIM-AS1 on GC was determined by RT-qPCR and western blotting. In addition, tumor formation was detected in nude mice. The results of the present study demonstrated that VIM-AS1 was highly expressed in GC tissues and cells. In addition, VIM-AS1 expression was demonstrated to be closely related to the prognosis of patients with GC. Notably, silencing VIM-AS1 inhibited the proliferation, migration and invasion, and enhanced apoptosis of AGS and HGC-27 cells. Silencing VIM-AS1 significantly increased the protein expression levels of cleaved caspase-3, Bax and E-cadherin, but decreased the protein expression levels of Bcl-2, N-cadherin, vimentin, matrix metalloproteinase (MMP)-2, MMP-9, β-catenin, cyclin D1, C-myc and FZD1. Additionally, silencing VIM-AS1 inhibited tumor growth in nude mice. Cumulatively, the present study demonstrated that VIM-AS1 may promote cell proliferation, migration, invasion and epithelial-mesenchymal transition by regulating FDZ1 and activating the Wnt/β-catenin pathway in GC.
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Affiliation(s)
- Jin-Gui Sun
- Department of Oncology, Shouguang People's Hospital, Shouguang, Shandong 262700, P.R. China
| | - Xiao-Bo Li
- Department of Gastroenterology, First People's Hospital of Jinan, Jinan, Shandong 250011, P.R. China
| | - Rui-Hong Yin
- Department of Gastroenterology, First People's Hospital of Jinan, Jinan, Shandong 250011, P.R. China
| | - Xiao-Feng Li
- Yulin Cancer Diagnosis and Treatment Center, The First Hospital of Yulin, Yulin, Shaanxi 719000, P.R. China
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197
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Oncogenic role of lncRNA CRNDE in acute promyelocytic leukemia and NPM1-mutant acute myeloid leukemia. Cell Death Discov 2020; 6:121. [PMID: 33298855 PMCID: PMC7658230 DOI: 10.1038/s41420-020-00359-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 10/13/2020] [Indexed: 12/22/2022] Open
Abstract
The PML/RARα fusion protein acts in concert with cooperative genetic events in the development of acute promyelocytic leukemia (APL). However, oncogenic long non-coding RNAs (lncRNAs) cooperating with PML/RARα remain under-explored. Here, we first identified a set of pathogenesis-related lncRNAs, aberrantly expressed in APL using RNA-seq data from a large cohort of acute myeloid leukemia (AML) patients and normal counterparts. Among the pathogenesis-related lncRNAs, one of the evolutionarily conservative lncRNAs CRNDE (Colorectal Neoplasia Differentially Expressed) drew our attention. We found that CRNDE was highly expressed in the disease state but not in the preleukemic stage of APL, suggesting that CRNDE might be a secondary event coordinating with PML/RARα to promote APL development. Functional analysis showed that CRNDE knockdown induced differentiation and inhibited proliferation of APL cells, and prolonged survival of APL mice. Further mechanistic studies showed that CRNDE elicited its oncogenic effects through binding the miR-181 family and thereby regulating NOTCH2. Finally, we found that high CRNDE expression was also significantly correlated with NPM1 mutations and contributed to the differentiation block in NPM1-mutant AML. Collectively, our findings shed light on the importance of oncogenic lncRNAs in the development of AML and provide a promising target for AML therapy.
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198
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Leng W, Liu Q, Zhang S, Sun D, Guo Y. LncRNA AFAP1-AS1 modulates the sensitivity of paclitaxel-resistant prostate cancer cells to paclitaxel via miR-195-5p/FKBP1A axis. Cancer Biol Ther 2020; 21:1072-1080. [PMID: 33138677 DOI: 10.1080/15384047.2020.1829266] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
LncRNA AFAP1-AS1 has been corroborated to function in diverse cancers. Our aim was to investigate the molecular mechanism of AFAP1-AS1 in PTX resistance in PCa. The levels of AFAP1-AS1, miR-195-5p, and FKBP1A were checked by qRT-PCR. 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-Diphenyltetrazolium Bromide (MTT) assay was employed to assess the resistance of PTX-resistant PCa cells to PTX. Flow cytometry was introduced to evaluate cell apoptosis. The protein levels of C-caspase 3 were determined by western blot. The starBase was used to predict the interaction between miR-195-5p and AFAP1-AS1. Xenograft tumor model was established to investigate the biological role of AFAP1-AS1 in PTX resistance in vivo. The levels of AFAP1-AS1 and FKBP1A were upregulated in PCa tissues and cells, as well as PTX-resistant PCa cells, while the expression of miR-195-5p was declined. Knockdown of AFAP1-AS1 promoted the sensitivity of PTX-resistant PCa cells to PTX, induced apoptosis of PTX-resistant PCa cells, whereas the impacts could be reversed by reducing the expression of miR-195-5p. FKBP1A overexpression could rescue the effects of miR-195-5p-mediated enhancement on the sensitivity of PTX-resistant PCa cells to PTX, promotion on apoptosis of PTX-resistant PCa cells. AFAP1-AS1 interacted with miR-195-5p and miR-195-5p could bind to the 3'UTR of FKBP1A. AFAP1-AS1 silencing inhibited the tumor growth in mice implanted with PC3-TXR cell. The protein level of PCNA was decreased in PC3-TXR cells transfected with sh-AFAP1-AS1, while the expression of C-caspase 3 was upregulated. AFAP1-AS1 silencing attenuated the resistance of PTX-resistant PCa cells to PTX by downregulating FKBP1A via sponging miR-195-5p.
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Affiliation(s)
- Weiping Leng
- Department of Pharmacy, Yantaishan Hospital , Yantai, Shandong, China
| | - Qingzuo Liu
- Department of Urology, Yantai Yuhuangding Hospital , Yantai, Shandong, China
| | - Shidong Zhang
- Department of Urology, Weifang People's Hospital , Weifang, Shandong, China
| | - Dekang Sun
- Department of Urology, Yantai Yuhuangding Hospital , Yantai, Shandong, China
| | - Yongshun Guo
- Department of Urology, Weifang People's Hospital , Weifang, Shandong, China
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199
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Silencing long non-coding RNA CASC9 inhibits colorectal cancer cell proliferation by acting as a competing endogenous RNA of miR-576-5p to regulate AKT3. Cell Death Discov 2020; 6:115. [PMID: 33298846 PMCID: PMC7603495 DOI: 10.1038/s41420-020-00352-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/29/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022] Open
Abstract
Increasing studies have shown that long non-coding RNAs (lncRNAs) are regarded as important regulators in the occurrence and development of colorectal cancer (CRC). Although lncRNA CASC9 has been studied in CRC, the detailed regulatory mechanism of CASC9 in CRC is still unclear. In this study, we found that CASC9 was significantly upregulated in CRC tissues and cell lines compared to normal controls and that aberrant expression was associated with the tumor-node-metastasis (TNM) stage of CRC. Functionally, CASC9 depletion efficiently inhibited the proliferation of CRC cells and induced cell apoptosis in vitro. Mechanistically, CASC9 was mainly enriched in the cytoplasm of CRC cells and interacted directly with miR-576-5p. Downregulation of miR-576-5p reversed the inhibitory effect of CASC9 siRNA on CRC cell progression. Furthermore, AKT3 has been identified as a downstream target of miR-576-5p. Spearman’s correlation analysis revealed that AKT3 was negatively correlated with miR-576-5p but positively correlated with CASC9. Downregulation of miR-576-5p restored the effect of CASC9 silencing on AKT3 expression. Therefore, silencing CASC9 could downregulate the expression of AKT3 by reducing the competitive binding of CASC9 to miR-576-5p, thus suppressing CRC cell proliferation and promoting cell apoptosis. In summary, we identified CASC9 as an oncogenic lncRNA in CRC and defined the CASC9/miR-576-5p/AKT3 axis, which might be considered a potential therapeutic target for CRC patients, as a novel molecular mechanism implicated in the proliferation and apoptosis of CRC.
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200
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Li Z, Liu J, Chen H, Zhang Y, Shi H, Huang L, Tao J, Shen R, Wang T. Ferritin Light Chain (FTL) competes with long noncoding RNA Linc00467 for miR-133b binding site to regulate chemoresistance and metastasis of colorectal cancer. Carcinogenesis 2020; 41:467-477. [PMID: 31675755 DOI: 10.1093/carcin/bgz181] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/18/2019] [Accepted: 10/25/2019] [Indexed: 12/22/2022] Open
Abstract
Although the colorectal cancer (CRC) mortality rates are decreasing in virtue of CRC screening and improved therapeutic methods, CRC is still a leading cause of cancer deaths. One of the main causes is chemoresistance occurrence in CRC. Understanding of the molecular mechanisms of chemoresistance benefits to CRC diagnosis and treatment. In this study, gene expression was determined by western blot and qRT-PCR. The biological functions of genes in CRC cells were studied by knocking down or overexpressing the gene in CRC cells and then analyzing cell sensitivity to 5-Fu by the MTT assay and the flow cytometry, and analyzing cell migration and invasion by transwell assays. The luciferase reporter assay was used to examine microRNA regulation of target gene expression, and biotin pull-down assay was performed to detect interaction between RNA molecules. This study found that ferritin light chain (FTL) and long intergenic noncoding RNA Linc00467 were both upregulated in CRC tissues and cell lines, and inversely correlated to CRC patient survival. FTL and Linc00467 promoted CRC cells abilities to resistance against 5-fluor-ouracil (5-Fu), migration and invasion. These effects were compromised by miR-133b which targeted both FTL and Linc00467. miR-133b interacted with Linc00467 and miR-133b inhibitor prevented Linc00467 knockdown-induced alternations of FTL expression and biological functions. Both FTL and Linc00467 are oncogenes in CRC. FTL expression upregulated in CRC via Linc00467/ miR-133b axis, and leads to CRC cell resistance against 5-FU treatment and promotes CRC metastasis. FTL expression upregulated in CRC via Linc00467/miR-133b axis, and leads to CRC cell resistance to 5-FU treatment and promotes CRC metastasis.
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Affiliation(s)
- Zengyao Li
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Liu
- Department of Respiratory, Wuxi People's Hospital, Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hang Chen
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ye Zhang
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Haoze Shi
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Longchang Huang
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jianxin Tao
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Renhui Shen
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tong Wang
- Department of General Surgery, and , Wuxi, Jiangsu.,Nanjing Medical University, Nanjing, Jiangsu, China
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