1
|
Tian P, Feng Y, Tao L. LINC00460 knockdown sensitizes cervical cancer to cisplatin by downregulating TGFBI. Chem Biol Drug Des 2024; 103:e14424. [PMID: 38230774 DOI: 10.1111/cbdd.14424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 01/18/2024]
Abstract
The acquired resistance of cancer to cisplatin (DDP) limits the efficacy of chemotherapy. The prognostic value of long noncoding RNA (lncRNA) LINC00460 has been reported in cervical cancer. However, its effect on DDP sensitivity in cervical cancer remains poorly understood. In present study, LINC00460 was screened out through bioinformatics analysis. The expression levels of mRNAs and proteins were measured by reverse transcription-quantitative PCR (RT-qPCR) or western blot analysis. The sensitivity to DDP was investigated using an CCK8 assay. Cell apoptosis was determined by flow cytometry. The differentially expressed genes that were associated with the poor prognosis of cervical cancer were screened, and their correlations with LINC00460 expression were explored using Pearson's correlation analysis. Tumor xenograft model was used to assess the effect of LINC00460 knockdown on DDP sensitivity in vivo. The interaction between miR-338-3p and LINC00460 or transforming growth factor β-induced protein (TGFBI) was confirmed by RNA immunoprecipitation (RIP) and luciferase reporter assays. LINC00460 expression was increased in cervical cancer tissues and cells. High expression of LINC00460 was associated with dismal prognosis in cervical cancer patients. Silencing of LINC00460 increased drug sensitivity and induced apoptosis in DDP-resistant-cervical cancer cells. LINC00460 knockdown enhanced DDP sensitivity in cervical cancer cells largely by downregulating TGFBI expression. LINC00460 knockdown enhanced the sensitivity of cervical cancer to DDP in vivo, and this effect was partly mediated by the downregulation of TGFBI. LINC00460 positively regulated TGFBI expression, possibly by acting as a sponge of miR-338-3p. LINC00460 knockdown contributed to DDP sensitivity of cervical cancer by downregulating TGFBI, providing a novel mechanism underlying the acquisition of DDP sensitivity.
Collapse
Affiliation(s)
- Ping Tian
- Xinyang Vocational and Technical College, Xinyang, China
| | - Yuanyuan Feng
- Department of Gynaecology and Obstetrics, Xinyang Central Hospital, Xinyang, China
| | - Ling Tao
- Xinyang Vocational and Technical College, Xinyang, China
| |
Collapse
|
2
|
Xu Y, Qiu Z, Chen J, Huang L, Zhang J, Lin J. LINC00460 promotes neuroblastoma tumorigenesis and cisplatin resistance by targeting miR-149-5p/DLL1 axis and activating Notch pathway in vitro and in vivo. Drug Deliv Transl Res 2023:10.1007/s13346-023-01505-6. [PMID: 38161194 DOI: 10.1007/s13346-023-01505-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Long noncoding RNAs (lncRNAs) have been demonstrated to participate in neuroblastoma cisplatin resistance and tumorigenesis. LncRNA LINC00460 was previously reported to play a critical regulatory role in many cancer development. Nevertheless, its role in modulating neuroblastoma cisplatin resistance has not been explored till now. Cisplatin-resistant neuroblastoma cell lines were established by exposing neuroblastoma cell lines to progressively increasing concentrations of cisplatin for 6 months. LINC00460, microRNA (miR)-149-5p, and delta-like ligand 1 (DLL1) mRNA expression was measured through RT-qPCR. The protein levels of DLL1, epithelial-to-mesenchymal transition (EMT) markers, and the Notch signaling-related molecules were measured via western blotting. The IC50 value for cisplatin, cell growth, metastasis and apoptosis were analyzed in cisplatin-resistant neuroblastoma cells. The binding between LINC00460 (or DLL1) and miR-149-5p was validated through dual-luciferase reporter assay. The murine xenograft model was established to perform in vivo assays. LINC00460 and DLL1 levels were elevated, while miR-149-5p level was reduced in cisplatin-resistant neuroblastoma cells. LINC00460 depletion attenuated IC50 values for cisplatin, weakened cell growth, metastasis, and EMT, and enhanced apoptosis in cisplatin-resistant neuroblastoma cells. Mechanically, LINC00460 sponged miR-338-3p to increase DLL1 level, thereby activating Notch signaling pathway. DLL1 overexpression antagonized LINC00460 silencing-induced suppression on neuroblastoma cell cisplatin resistance and malignant behaviors, while such effects were further reversed by treatment with DAPT, the inhibitor of Notch pathway. Additionally, LINC00460 knockdown further augmented cisplatin-induced impairment on tumor growth in vivo. LINC00460 contributes to neuroblastoma cisplatin resistance and tumorigenesis through miR-149-5p/DLL1/Notch pathway, providing new directions to improve the therapeutic efficacy of chemotherapy drugs applied in patients with neuroblastoma.
Collapse
Affiliation(s)
- Yali Xu
- Department of Pediatric Surgery, The First Affiliated Hospital of Fujian Medical University, 20 Cha-Zhong Road, Taijiang District, Fuzhou, 350005, China
| | - Zhixin Qiu
- Department of Pediatric Surgery, The First Affiliated Hospital of Fujian Medical University, 20 Cha-Zhong Road, Taijiang District, Fuzhou, 350005, China
| | - Jinwen Chen
- Department of Pediatric Surgery, The First Affiliated Hospital of Fujian Medical University, 20 Cha-Zhong Road, Taijiang District, Fuzhou, 350005, China
| | - Lihong Huang
- The First Clinical Medical School, Fujian Medical University, Fuzhou, 350005, China
| | - Jiaqi Zhang
- The First Clinical Medical School, Fujian Medical University, Fuzhou, 350005, China
| | - Junshan Lin
- Department of Pediatric Surgery, The First Affiliated Hospital of Fujian Medical University, 20 Cha-Zhong Road, Taijiang District, Fuzhou, 350005, China.
| |
Collapse
|
3
|
Nakano Y, Isobe K, Yoshizawa T, Urabe N, Homma S, Kishi K. Upregulation of long non‑coding RNA LINC00460 in EGFR‑mutant lung cancer indicates a poor prognosis in patients treated with osimertinib. Oncol Lett 2023; 26:380. [PMID: 37559586 PMCID: PMC10407845 DOI: 10.3892/ol.2023.13966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/30/2023] [Indexed: 08/11/2023] Open
Abstract
The long non-coding RNA (lncRNA) LINC00460 is involved in tumor growth, metastasis and drug resistance. The present study investigated the clinical significance of LINC00460 expression in patients with epidermal growth factor receptor (EGFR) mutation-positive lung cancer treated with osimertinib. Osimertinib-resistant cells we derived from EGFR-mutant non-small-cell lung cancer (NSCLC) cell lines, after which, small interfering RNA (siRNA)-mediated silencing and in vitro-transcribed (IVT), synthetic LINC00460 RNA transfection were used to investigate the effects of LINC00460 expression on acquired resistance to osimertinib. Reverse transcription-quantitative polymerase chain reaction was performed to evaluate LINC00460 expression in 54 samples (RNA extracted from the tumor tissues of 30 cases and cell-free RNA from 24 cases) obtained from patients with EGFR mutation-positive lung cancer who had received osimertinib as the initial treatment. The acquisition of osimertinib resistance increased the expression of LINC00460 in the EGFR-mutant NSCLC cell lines. By contrast, knockdown of LINC00460 in osimertinib-resistant cell lines increased their sensitivity to osimertinib, whereas treatment of NSCLC cells with IVT LINC00460 RNA decreased their sensitivity to osimertinib. The present study examined LINC00460 expression at the primary tumor site and demonstrated that compared with in the low-expression group (n=24), the high-expression group (n=6) had a significantly lower best overall response rate to osimertinib (16.6% vs. 60.0%; P=0.044), significantly shorter median progression-free survival (PFS; 224 days vs. 669 days; P=0.001) and significantly shorter median overall survival (724 days vs. not reached; P=0.011). Moreover, following osimertinib therapy, PFS was significantly shorter for patients with high LINC00460 expression in plasma cell-free RNA (n=12) than for those with low LINC00460 expression (n=12) (median PFS: 655 days vs. 210 days; P=0.020). In conclusion, the upregulation of LINC00460, the expression of which is implicated in osimertinib resistance, in the primary site and plasma of patients with EGFR mutation-positive lung cancer may be associated with a poor prognosis in those treated with osimertinib.
Collapse
Affiliation(s)
- Yuta Nakano
- Department of Respiratory Medicine, Toho University School of Medicine, Tokyo 143-8541, Japan
- Pharmaceutical & ADMET Research Development, Daiichi Sankyo RD Novare Co., Ltd, Tokyo 134-8630, Japan
| | - Kazutoshi Isobe
- Department of Respiratory Medicine, Toho University School of Medicine, Tokyo 143-8541, Japan
| | - Takahiro Yoshizawa
- Department of Respiratory Medicine, Toho University School of Medicine, Tokyo 143-8541, Japan
| | - Naohisa Urabe
- Department of Respiratory Medicine, Toho University School of Medicine, Tokyo 143-8541, Japan
| | - Sakae Homma
- Department of Respiratory Medicine, Toho University School of Medicine, Tokyo 143-8541, Japan
| | - Kazuma Kishi
- Department of Respiratory Medicine, Toho University School of Medicine, Tokyo 143-8541, Japan
| |
Collapse
|
4
|
Ren W, Zhang X, Li Q, Pu C. LINC00460 contributes to colorectal cancer cell invasion. Biotechnol Genet Eng Rev 2023:1-15. [PMID: 37249200 DOI: 10.1080/02648725.2023.2216528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
RESEARCH BACKGROUND Colorectal cancer (CRC) is one of the most prevalent malignant tumors in the world. Research on long noncoding RNAs (LncRNAs) may illuminate tumorigenesis and progression of CRC. METHODS We screened long non-coding RNA LINC00460 as a new candidate, which promoted the development of CRC in two independent datasets (GSE39582 and GSE21510) from the Gene Expression Omnibus (GEO). In 98 CRC tissues, expression levels of LINC00460 were significantly increased in cancerous tissues compared to paired adjacent normal tissues (P < 0.001). In addition, in the most common CRC cell lines. LINC00460 expression was up-regulated compared to normal human intestinal epithelial cell line NCM460. siRNA was transfected into CRC cell lines. LINC00460 knockdown reduced cell invasion ability and did not affect cell proliferation. The association between LINC00460 expression and clinical pathological features and prognosis were also analyzed. RESULTS This increased expression was found to significantly correlate with lymph node metastasis (P = 0.002), distant metastasis (P = 0.045) and TNM stage (P < 0.001); but not related to age, gender, location of tumor, and histological grade. The overall survival (OS) in CRC patients with overexpression of LINC00460 was inferior to that with low expression (P = 0.0167). Multivariate Cox regression analyses indicated that LINC00460 expression, as well as TNM stage was an independent prognostic risk factor for patients with CRC. CONCLUSION These results showed that a higher expression level of LINC00460 might play an oncogenic role in colorectal cancer invasion and metastasis. It also proved that LINC00460 might be used as a potential diagnostic and prognostic biomarker in CRC patients.
Collapse
Affiliation(s)
- Weiguo Ren
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xuexiu Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qiang Li
- Department of Oncology, Shenzhen Hospital, Southern Medical University, Zhengzhou, China
| | - Chibin Pu
- Department of Gastroenterology, Zhongda Hospital, Southeast University, Nanjing, China
| |
Collapse
|
5
|
Li F, Zhu W. LINC00460 promotes angiogenesis by enhancing NF-κB-mediated VEGFA expression in cervical cancer cells. Biochem Biophys Res Commun 2023; 671:146-152. [PMID: 37302288 DOI: 10.1016/j.bbrc.2023.05.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/13/2023]
Abstract
Angiogenesis is a characteristic of tumor development and is key for tumor growth and metastasis. LINC00460 is a long non-coding RNA that plays important yet complex roles in cancer development and progression. Here, we explored the functional mechanism of action of LINC00460 in cervical cancer (CC) angiogenesis for the first time. We found that conditioned medium (CM) from LINC00460-knockdown CC cells attenuated human umbilical vein endothelial cell (HUVEC) migration, invasion, and tube formation, whereas LINC00460 upregulation had the opposite effects. Mechanistically, LINC00460 stimulated VEGFA transcription. Suppressing VEGF-A reversed the effects of CM from LINC00460-overexpressing CC cells on HUVEC angiogenesis. Recombinant VEGFA eliminated the suppressive effects of CM from LINC00460-knockdown CC cells. Furthermore, LINC00460 enhanced VEGFA expression and promoted angiogenesis by activating the NF-κB pathway. Our data illustrate that LINC00460 can promote angiogenesis by activating the NF-κB-VEGFA axis, suggesting that the axis is a promising target for blocking tumor angiogenesis.
Collapse
Affiliation(s)
- Fan Li
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, China; Department of Gynecology, Shanghai Xuhui Central Hospital, Shanghai, 200031, China; Department of Gynecology, Zhongshan-Xuhui Hospital, Fudan University, Shanghai, 200031, China
| | - Weipei Zhu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Suzhou, 215000, China.
| |
Collapse
|
6
|
Hosseini FA, Rejali L, Zabihi MR, Salehi Z, Daskar-Abkenar E, Taraz T, Fatemi N, Hashemi M, Asadzadeh-Aghdaei H, Nazemalhosseini-Mojarad E. Long non‑coding RNA LINC00460 contributes as a potential prognostic biomarker through its oncogenic role with ANXA2 in colorectal polyps. Mol Biol Rep 2023; 50:4505-4515. [PMID: 37024747 DOI: 10.1007/s11033-023-08393-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/17/2023] [Indexed: 04/08/2023]
Abstract
BACKGROUND Long intergenic non-coding RNA 460 (LINC00460) as a potential oncogene and Annexin A2 (ANXA2) as a promoter in different cancer progression processes was considered. A significant relationship between the LINC00460 and ANXA2 has been recently discovered in colorectal cancer (CRC). Therefore, defining molecular biomarkers accompanied by lesion histopathologic features can be a suggestive prognostic biomarker in precancerous polyps. This study aimed to investigate the elusive expression pattern of ANXA2 and LINC00460 in polyps. MATERIALS AND METHODS The construction of the co-expression and correlation network of LINC00460 and ANXA2 was plotted. LINC00460 and ANXA2 expression in 40 colon polyps was quantified by reverse transcription-real-time polymerase chain reaction. The receiver operating characteristic (ROC) curve was designed for distinguishing the high-risk precancerous lesion from the low-risk. Further, bioinformatics analysis was applied to find the shared MicroRNA-Interaction-Targets (MITs) between ANXA2 and LINC00460, and the associated pathways. RESULTS ANXA2 has a high co-expression rank with LINC00460 in the lncHUB database. Overexpression of ANXA2 and LINC00460 was distinguished in advanced adenoma polyps compared to the adjacent normal samples. The estimated AUC for ANXA2 and LINC00460 was 0.88 - 0.85 with 93%-90% sensitivity and 81%-70% specificity. In addition, eight MITs were shared between ANXA2 and LINC00460. Enrichment analysis detected several GO terms and pathways, including HIF-1α associated with cancer development. CONCLUSION In conclusion, the expression of the ANXA2 and LINC00460 were significantly elevated in pre-cancerous polyps, especially in high-risk adenomas. Collectively, ANXA2 and LINC00460 may be administered as potential prognostic biomarkers in patients with a precancerous large intestine lesion as an alarming issue.
Collapse
Affiliation(s)
- Farzaneh Alsadat Hosseini
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Leili Rejali
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zabihi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Salehi
- Laboratory of Complex Biological Systems and Bio-informatics (CBB), Department of Bioinformatics, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Elahe Daskar-Abkenar
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tannaz Taraz
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nayeralsadat Fatemi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Farhikhtegan Medical Convergence sciences Research Centre, Farhikhtegan Hospital, Islamic Azad University, Tehran Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh-Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Nazemalhosseini-Mojarad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Yeman St, Chamran Expressway, 19857-17413, Tehran, Iran.
| |
Collapse
|
7
|
ZHU X, XIANG Y, MO F, JIN L. LINC00460 mediates HMGA2 expression through binding to miRNA-143-5p competitively in gastric carcinoma. Turk J Biol 2023; 47:130-140. [PMID: 37529164 PMCID: PMC10387914 DOI: 10.55730/1300-0152.2648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 04/26/2023] [Accepted: 01/19/2023] [Indexed: 08/03/2023] Open
Abstract
Background Compelling evidence has manifested a strong association between aberrant expression of long noncoding RNAs (lncRNAs) and gastric carcinoma (GC) development. Nonetheless, biological impacts of differentially expressed lncRNAs (DElncRNAs) on GC are not scrutinized. Methods Bioinformatics methods were employed for differential expression analysis and target gene prediction. MTT, colony formation, and Transwell methods were implemented for GC cell proliferation, migration, and invasion assessment. Western blot was implemented to test the protein level. The binding of genes was tested with dual-luciferase and RNA binding protein immunoprecipitation (RIP) approaches. Results Noticeably high level of LINC00460 was observed in GC tissues and cells. LINC00460 silencing constrained proliferation, migration, and invasion of GC cells. FISH and nuclear-cytoplasmic separation assays confirmed the main presentation of LINC00460 in the cytoplasm. Bioinformatics predicted that LINC00460 had binding sites to miRNA-143-5p, which was upregulated in GC. Dual luciferase and RIP experiments also confirmed the binding relationship. Concurrent silencing of LINC00460s and miRNA-133-5p rescued the repressive influence of sh-LINC004600 on GC cell proliferation, migration, and invasion. HMGA2 was predicted to be a target gene downstream of miRNA-143-5p, their binding relationship was validated via dual luciferase assays. Silencing HMGA2 constrained GC cell proliferation, invasion, and migration. LINC00460 modulated HMGA2 expression via binding miRNA-143-5p, thereby affecting proliferation, invasion, and migration of GC cells. Conclusion These findings validated that LINC00460 could regulate HMGA2 via sponging miRNA-143-5p to facilitate GC proliferation, invasion, and migration, which provides a deeper understanding of lncRNAs in the development of GC.
Collapse
|
8
|
Zhang C, Xu L, Li X, Chen Y, Shi T, Wang Q. LINC00460 Facilitates Cell Proliferation and Inhibits Ferroptosis in Breast Cancer Through the miR-320a/MAL2 Axis. Technol Cancer Res Treat 2023; 22:15330338231164359. [PMID: 36938678 PMCID: PMC10028644 DOI: 10.1177/15330338231164359] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023] Open
Abstract
Background: Emerging evidence suggests that long noncoding RNAs (lncRNAs) play an important role in the progression of multiple human cancers including breast cancer. In this study, we aimed to research novel functions of long intergenic noncoding RNA 460 (LINC00460) on cell proliferation and ferroptosis in breast cancer. Method: UALCAN, TANRIC, and GSE16446 data were used to analyze the expression of LINC00460 in breast cancer tissues. Furthermore, real-time quantitative PCR, western blot, cell proliferation assay, iron assay, and malondialdehyde (MDA) assay were applied to detect the function and mechanism of particular molecules. Results: The LINC00460 expression was significantly increased in breast cancer tissues compared with normal tissues. Importantly, patients with high LINC00460 expression showed a longer overall survival rate. LINC00460 knockdown markedly suppressed the proliferation of breast cancer cells and promoted ferroptosis. Mechanistic analysis revealed that LINC00460 promoted myelin and lymphocyte protein 2 (MAL2) expression by sponging miR-320a. Moreover, both miR-320a knockdown and MAL2 overexpression could reverse the effects of LINC00460 silencing on cell proliferation and ferroptosis. Conclusions: In summary, our results reveal an alternative mechanism by which breast cancer cells can acquire resistance to ferroptosis via the LINC00460/miR-320a/MAL2 axis.
Collapse
Affiliation(s)
- Chuanqiang Zhang
- Department of General Surgery, 627662The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
| | - Liang Xu
- Neonatal Department, 604074Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Xiaowei Li
- Department of General Surgery, 627662The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
| | - Yueqiu Chen
- Institute for Cardiovascular Science, 74566The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Tongguo Shi
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of 12582Soochow University, Suzhou, China
| | - Qiang Wang
- Department of General Surgery, 627662The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
| |
Collapse
|
9
|
Xue C, Yang Z, Yang B, Xiong H, Ye W. LINC00460 Promotes Cutaneous Squamous Cell Carcinoma Progression Through Stabilizing ELAVL1 Protein. Mol Biotechnol 2022:10.1007/s12033-022-00631-9. [PMID: 36513874 DOI: 10.1007/s12033-022-00631-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
Long intergenic noncoding ribonucleic acid (lncRNA) 460 is reportedly associated with carcinogenesis and progression in various types of cancer. However, the mechanisms underlying its action in cutaneous squamous cell carcinoma (CSCC) remain unclear. LINC00460 mRNA expression was analysed using data from the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. Cell growth, migration, and invasion were evaluated using Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), transwell migration and invasion assays after inducing LINC00460 knockdown. A xenograft tumour model was used to determine the effects of LINC00460 on tumour growth and metastasis in vivo. To examine the interaction between LINC00460 and ELAVL1, RNA pulldown and RNA immunoprecipitation assays were performed. LINC00460 was found to be significantly upregulated in CSCC tissues and cell lines. Functionally, LINC00460 knockdown inhibited cell proliferation, migration, and invasion in vitro. Consistent with this, when LINC00460 expression decreased, CSCC tumorigenesis and metastasis in vivo were inhibited. Mechanistically, LINC00460 binds to embryonic lethal abnormal vision like RNA binding protein 1 (ELAVL1) and enhances its stability by inhibiting the β-transducin repeats-containing protein (β-TrCP)-mediated ubiquitination of ELAVL1. Moreover, the effect of LINC00460 silencing on the proliferation, migration, and invasion of CSCC cells could be reversed by overexpressing ELAVL1. Our findings demonstrated that LINC00460 plays a critical role in regulating ELAVL1 function. This highlights the potential targets for the clinical diagnosis and treatment of CSCC.
Collapse
Affiliation(s)
- Chunli Xue
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, China
| | - Zuxian Yang
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, China
| | - Ben Yang
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, China
| | - Hailin Xiong
- Department of Oncology, Huizhou Municipal Central Hospital, No.41, Erling North Road, Huizhou, 516001, China.
| | - Wei Ye
- Department of Burn Surgery, The First Clinical Medical College of Guangdong Medical University, Huizhou, 516001, China
| |
Collapse
|
10
|
Yao J, Gao R, Luo M, Li D, Guo L, Yu Z, Xiong F, Wei C, Wu B, Xu Z, Zhang D, Wang J, Wang L. Exosomal LINC00460/miR-503-5p/ANLN positive feedback loop aggravates pancreatic cancer progression through regulating T cell-mediated cytotoxicity and PD-1 checkpoint. Cancer Cell Int 2022; 22:390. [PMID: 36482354 PMCID: PMC9733079 DOI: 10.1186/s12935-022-02741-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 10/04/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Long non-coding RNA (lncRNA) LINC00460 is an onco-lncRNA in a variety of cancers, including pancreatic cancer (PC). This study is aimed to investigate the regulatory mechanisms of LINC00460 in PC. METHODS The tumor and adjacent normal tissues were collected from 73 PC patients. The expression of LINC00460, miR-503-5p, and ANLN was detected using qRT-PCR. We then analyzed the proliferation, migration, invasion, and apoptosis/cell cycle of PC cells by performing the MTT/EdU, transwell, and flow cytometry assays, respectively. The xenograft tumor model were utilized to confirm the effect of LINC00460 knockdown on PC through anti-PD-1 therapy in vivo, and the sensitivity of PANC-1 cells to the cytotoxicity of CD8+ T cells in vitro. Western blotting was used to determine the protein levels. A co-culture model was utilized to explore the effects of exosomes on macrophages. RESULTS LINC00460 was up-regulated in PC tissues and cells. LINC00460 knockdown suppressed cell proliferation, migration, and invasion, facilitated cell apoptosis and G0/G1 phase arrest, and inhibited the tumor growth through anti-PD-1 therapy. Both miR-503-5p down-regulation and ANLN up-regulation reversed the effects of LINC00460 knockdown on inhibiting the proliferation, migration and invasion, and on promoting the apoptosis, G0/G1 phase arrest, and the sensitivity of PC cells to the cytotoxicity of CD8+ T cells. Exosomes were uptaken by the ambient PC cells. PANC-1 cells-derived exosomal LINC00460-induced M2 macrophage polarization accelerates the cell migration and invasion. CONCLUSIONS LINC00460 silencing attenuates the development of PC by regulating the miR-503-5p/ANLN axis and exosomal LINC00460-induced M2 macrophage polarization accelerates the migration and invasion of PANC-1 cells, thus LINC00460 may act as a possible therapeutic target for treating PC.
Collapse
Affiliation(s)
- Jun Yao
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Ruoyu Gao
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Minghan Luo
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Defeng Li
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Liliangzi Guo
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Zichao Yu
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Feng Xiong
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Cheng Wei
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Benhua Wu
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Zhenglei Xu
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Dingguo Zhang
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| | - Jianyao Wang
- grid.452787.b0000 0004 1806 5224Department of General Surgery, Shenzhen Children’s Hospital, No. 7019, Yitian Road Road, Shenzhen City, 518026 Guangdong Province China
| | - Lisheng Wang
- grid.258164.c0000 0004 1790 3548Department of Gastroenterology, Jinan University of Second Clinical Medical Sciences, Shenzhen Municipal People’s Hospital, No. 1017, East Gate Road, Shenzhen City, 518020 Guangdong Province China
| |
Collapse
|
11
|
Zhu XX, Li JH, Ni X, Wu X, Hou X, Li YX, Li SJ, Zhao W, Yin XY. Pancreatic ductal adenocarcinoma cells regulated the gemcitabine-resistance function of CAFs by LINC00460. Cancer Sci 2022; 113:3735-3750. [PMID: 36047966 PMCID: PMC9633316 DOI: 10.1111/cas.15547] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/28/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly fatal malignancy with extremely poor prognosis. Gemcitabine resistance is a major challenge in the treatment of PDAC. Here, we showed that LINC00460 was associated with the response to gemcitabine both in PDAC patients and PDAC‐PDX. After knocking down LINC00460 in PDAC tumor cells, results of RNA sequencing followed by gene ontology analysis indicated that LINC00460 influenced the activity of growth factors and modified the extracellular matrix. FISH showed that LINC00460 is mostly located in the cytoplasm. Results of RNA pull‐down, LC–MS/MS, RIP, and immunoblotting confirmed that LINC00460 could directly bind to PDAP1. Furthermore, we demonstrated that LINC00460 mediated the cellular communication of PDAC tumor cells and CAFs by PDAP1/PDGFA/PDGFR signaling pathway and regulated the gemcitabine‐resistance function of CAFs, which could be reversed by treatment with a PDGFR inhibitor (crenolanib). PDAC‐PDX tumors with lower expression of LINC00460 showed a better response to gemcitabine plus crenolanib treatment. Our finding supported the application of LINC00460 in precision medicine that uses gemcitabine plus crenolanib to treat PDAC with low expression of LINC00460.
Collapse
Affiliation(s)
- Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuhao Ni
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiao Wu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xun Hou
- Center for Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ya-Xiong Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shi-Jin Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| |
Collapse
|
12
|
Zhou FJ, Meng S, Wu XF, Hou PF, Li ML, Chu SF, Bai J, Zheng JN. LncRNA LINC00460 facilitates the proliferation and metastasis of renal cell carcinoma via PI3K/AKT signaling pathway. J Cancer 2022; 13:2844-2854. [PMID: 35912013 PMCID: PMC9330462 DOI: 10.7150/jca.73758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/23/2022] [Indexed: 11/20/2022] Open
Abstract
Renal cell carcinoma (RCC) is one of the most prevalent cancers diseases in the worldwide. Long noncoding RNAs (LncRNAs) have been indicated as a mediator acted in tumorigenesis of RCC. LINC00460 has been reported to participate in many kinds of malignancies and promotes cancer progressions. However, the mechanism of LINC00460 on RCC is yet to be investigated. This study aimed to explore the potential function and regulation mechanism of LINC00460 in RCC. We analysed the LINC00460 expression and the prognosis in RCC patients using Gene Expression Profiling Interactive Analysis (GEPIA) and The Cancer Genome Atlas (TCGA) databases. LINC00460 level in normal renal cell line and RCC cell lines were examined by qRT-PCR. We study the effects of LINC00460 on proliferation, migration, invasion, apoptosis in RCC cells lines using a series of in vivo and in vitro experiments. RNA sequencing (RNA-seq) analysis was applied to searching potential LINC00460 related signal pathway in RCC. We identified the significant up-regulated expression of LINC00460 both in RCC tissues and cell. RCC patients with elevated LINC00460 expression have shorter survival. Up-expression of LINC00460 promoted cell proliferation, invasion and migration, meanwhile down-regulation of LINC00460 exerted inhibitory effect on these activities. We crucially identified that LNC00460 promotes development of RCC by influencing the PI3K/AKT pathway. Knockdown of LNC00460 decreased the phosphorylation of AKT and mTOR. The key finding of our study showed that LINC00460 functions as an oncogene in RCC pathogenesis by mediating the PI3K/AKT.
Collapse
Affiliation(s)
- Feng-Juan Zhou
- The Fourth Clinical College of Nanjing Medical University, Nanjing 211100, Jiangsu Province, China.,Department of Radiotherapy, the Second Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Sen Meng
- Cancer Institute, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Xiao-Feng Wu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing 210029, Jiangsu Province, China
| | - Ping-Fu Hou
- Cancer Institute, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China.,Center of Clinical Oncology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Min-Le Li
- Cancer Institute, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China.,Center of Clinical Oncology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Su-Fang Chu
- Cancer Institute, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Jin Bai
- Cancer Institute, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China.,Center of Clinical Oncology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Jun-Nian Zheng
- The Fourth Clinical College of Nanjing Medical University, Nanjing 211100, Jiangsu Province, China.,Cancer Institute, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China.,Center of Clinical Oncology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| |
Collapse
|
13
|
Su M, Tang J, Yang D, Wu Z, Liao Q, Wang H, Xiao Y, Wang W. Oncogenic roles of the lncRNA LINC00460 in human cancers. Cancer Cell Int 2022; 22:240. [PMID: 35906593 PMCID: PMC9336008 DOI: 10.1186/s12935-022-02655-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 07/17/2022] [Indexed: 11/24/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) represent an important group of endogenous RNAs with limit protein-encoding capability, with a length of more than 200 nucleotides. Emerging evidence have demonstrated that lncRNAs are greatly involved in multiple cancers by playing critical roles in tumor initiation and progression. Long intergenic non-protein coding RNA 460 (LINC00460), a novel cancer-related lncRNA, exhibits abnormal expression and oncogenic function in multiple cancers, and positively correlates with poor clinical characteristics of cancer patients. LINC00460 has also been shown to be a promising biomarker for diagnosis as well as prognostic evaluation in cancer patients. In this review, we briefly summarized recent knowledge on the expression, functional roles, molecular mechanisms, and diagnostic and prognostic values of LINC00460 in human malignancies.
Collapse
Affiliation(s)
- Min Su
- Thoracic Surgery Department 2, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Hunan Key Laboratory of Translational Radiation Oncology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Hunan, 410013, Changsha, People's Republic of China
| | - Jinming Tang
- Thoracic Surgery Department 2, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Desong Yang
- Thoracic Surgery Department 2, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Zhining Wu
- Thoracic Surgery Department 2, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China.,Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Qianjin Liao
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, People's Republic of China
| | - Hui Wang
- Hunan Key Laboratory of Translational Radiation Oncology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Hunan, 410013, Changsha, People's Republic of China
| | - Yuhang Xiao
- Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China. .,Department of Pharmacy, Xiangya Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410001, People's Republic of China.
| | - Wenxiang Wang
- Thoracic Surgery Department 2, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China. .,Hunan Clinical Medical Research Center of Accurate Diagnosis and Treatment for Esophageal Carcinoma, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, Changsha, Hunan, 410013, People's Republic of China.
| |
Collapse
|
14
|
Chen X, Song J, Wang X, Sun D, Liu Y, Jiang Y. LncRNA LINC00460: Function and mechanism in human cancer. Thorac Cancer 2022; 13:3-14. [PMID: 34821482 PMCID: PMC8720622 DOI: 10.1111/1759-7714.14238] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022] Open
Abstract
Long non-coding RNAs (LncRNAs), which are more than 200 nucleotides in length and with limited protein-coding potential, play vital roles in the pathogenesis, tumorigenesis, and angiogenesis of cancers. Aberrant expression of lncRNAs has been detected in various carcinomas and may be correlated with oncogenesis by affecting related genes expression. Recently, an increasing number of studies have reported on long intergenic non-protein coding RNA 460 (LINC00460) in human tumor fields. LINC00460 is upregulated in diverse cancer tissues and cells. The upregulated expression level of LINC00460 is correlated with larger tumor size, tumor node metastasis (TNM) stage, lymph node metastasis, and shorter overall survival. The regulatory mechanism of LINC00460 was complex and diverse. LINC00460 could act as a competitive endogenous RNA (ceRNA), directly bind with proteins or regulate multiple pathways, which affected tumor progression. Moreover, LINC00460 was also identified to increase drug resistance, and therefore, weaken the effectiveness of tumor treatment. It has become increasingly important to investigate the roles of LINC00460 in various cancers by different mechanisms. Therefore, a more comprehensive understanding of LINC00460 is crucial to expound on the cellular function and molecular mechanism of human cancers. In this review, we refer to studies concerning LINC00460 and provide the basis for the evaluation of LINC00460 as a predicted biomarker or potential therapeutic target in malignancies, and also provide ideas for the future research of lncRNAs similar to LINC00460.
Collapse
Affiliation(s)
- Xi Chen
- School of StomatologyWeifang Medical UniversityWeifangShandongChina
| | - Jiwu Song
- Department of StomatologyWeifang People's Hospital, First Affiliated Hospital of Weifang Medical UniversityWeifangShandongChina
| | - Xiaoxiao Wang
- School of StomatologyWeifang Medical UniversityWeifangShandongChina
- Department of DentistryAffiliated Hospital of Weifang Medical UniversityWeifangShandongChina
| | - Dongyuan Sun
- School of StomatologyWeifang Medical UniversityWeifangShandongChina
- Department of DentistryAffiliated Hospital of Weifang Medical UniversityWeifangShandongChina
| | - Yunxia Liu
- School of StomatologyWeifang Medical UniversityWeifangShandongChina
- Department of DentistryAffiliated Hospital of Weifang Medical UniversityWeifangShandongChina
| | - Yingying Jiang
- School of StomatologyWeifang Medical UniversityWeifangShandongChina
- Department of DentistryAffiliated Hospital of Weifang Medical UniversityWeifangShandongChina
| |
Collapse
|
15
|
Chen B, Zhang K, Han Q, Zhong W, Yi J, Zhu H, Xia S. LncRNA LINC00460 takes a stimulating role on hepatocellular carcinoma stemness property. Cell Cycle 2021; 20:2102-2113. [PMID: 34612153 DOI: 10.1080/15384101.2021.1940627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Abundant researches have stated that long noncoding RNAs (lncRNAs) are crucial molecules in intricate progression of various cancers in terms of their influence on cell stemness. However, no research has discussed the role of LINC00460 in the stemness of hepatocellular carcinoma (HCC). RT-qPCR and western blot were utilized to respectively examine the RNA and protein levels. Aldehyde dehydrogenase 1 (ALDH1) assays and sphere formation assay were performed to detect cell stemness property in vitro and in vivo subcutaneous xenograft tumor assay was performed to detect tumor growth. Interaction between RNAs was explored by luciferase reporter assays and RNA pull-down assays. Our results showed that LINC00460 was markedly over-expressed in HCC and silencing LINC00460 impaired cell stemness. Additionally, LINC00460 knockdown curbed proliferation, migration, invasion and epithelial-to-mesenchymal transition (EMT) and drove apoptosis of HCC cells. Further, LINC00460 bound to miR-503-5p and miR-654-3p to protect t-complex 1 (TCP1) from being inhibited by miR-503-5p/miR-654-3p. Rescue experiments confirmed the effect of LINC00460/miR-503-5p/miR-654-3p/TCP1 on HCC cell stemness. In conclusion, LINC00460 aggravated cell stemness in HCC via targeting miR-503-5p/miR-654-3p and TCP1, suggesting that LINC00460 may work as a potential signature for cell stemness in HCC.[Figure: see text].
Collapse
Affiliation(s)
- Bitao Chen
- Department of Gastroenterology, the No.1 People's Hospital of Jingmen, 448000, Hubei, China
| | - Kejun Zhang
- Department of Traditional Chinese Medicine, the No.1 People's Hospital of Jingmen, Jingmen, 448000, Hubei, China
| | - Qinli Han
- Department of Gastroenterology, the No.1 People's Hospital of Jingmen, 448000, Hubei, China
| | - Weiwei Zhong
- Department of Gastroenterology, the No.1 People's Hospital of Jingmen, 448000, Hubei, China
| | - Jie Yi
- Department of Gastroenterology, the No.1 People's Hospital of Jingmen, 448000, Hubei, China
| | - Huiling Zhu
- Department of Gastroenterology, the No.1 People's Hospital of Jingmen, 448000, Hubei, China
| | - Shitao Xia
- Department of Gastroenterology, the No.1 People's Hospital of Jingmen, 448000, Hubei, China
| |
Collapse
|
16
|
Zhang S, Zhang F, Niu Y, Yu S. Aberration of lncRNA LINC00460 is a Promising Prognosis Factor and Associated with Progression of Clear Cell Renal Cell Carcinoma. Cancer Manag Res 2021; 13:6489-6497. [PMID: 34429655 PMCID: PMC8379393 DOI: 10.2147/cmar.s322747] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/26/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Long noncoding RNAs have been studied more and more as potential prognostic markers. However, the prognostic of LINC00460 in clear cell renal cell carcinoma (ccRCC) has not been explored. In this study, the potential role of LINC00460 was investigated in ccRCC. Patients and Methods One hundred thirteen pairs of ccRCC tissues and para-normal tissues were collected. The expressions of LINC00460 in these tissues and ccRCC cells were evaluated via qRT-PCR. The prognostic value of LINC00460 was accessed with the use of Kaplan–Meier analysis and Cox proportional hazards model analysis. The influence of LINC00460 on ccRCC cell proliferation, migration, and invasion was determined via cell counting kit-8 (CCK-8) and Transwell assays. Results The results revealed that LINC00460 was significantly enhanced in ccRCC tissues, as well as in ccRCC cell lines. The overexpression of LINC00460 was significantly associated with lymph node metastasis and TNM stage, and lead to poor overall survival. Knockdown of LINC00460 reduces the cell ability of proliferation, migration, and invasion. LINC00460 could sponge to miR-149-5p. Conclusion LINC00460 may be developed as a prognostic biomarker and molecular therapy target for ccRCC.
Collapse
Affiliation(s)
- Shijie Zhang
- General Surgery, The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, People's Republic of China
| | - Fengyun Zhang
- Hematology and Rheumatology, The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, People's Republic of China
| | - Yingdong Niu
- Supply Room, The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, People's Republic of China
| | - Shenglong Yu
- Urology Surgery, The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, People's Republic of China
| |
Collapse
|
17
|
Li M, Zhang X, Ding X, Zheng Y, Du H, Li H, Ji H, Wang Z, Jiao P, Song X, Zhong Y, Wu H. Long Noncoding RNA LINC00460 Promotes Cell Progression by Sponging miR-4443 in Head and Neck Squamous Cell Carcinoma. Cell Transplant 2021; 29:963689720927405. [PMID: 32478564 PMCID: PMC7563806 DOI: 10.1177/0963689720927405] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is one of the most common cancers worldwide. Long noncoding RNAs were proved to be associated with the development and progression in HNSCC. However, the mechanism of LINC00460 in HNSCC needs to be further investigated. The study used quantitative real-time polymerase chain reaction assay to detect the expression of LINC00460 in cancer tissues and cell lines. Gain and loss of function experiments were conducted to analyze the effects of LINC00460 and miR-4443 on cell proliferation, invasion, and apoptosis of HNSCC cells in vitro. The interactions among miR-4443 and LINC00460 were detected by dual-luciferase reporter assay. Here, the study showed that LINC00460 was highly expressed in HNSCC tissues and cell lines. Functionally, knockdown of LINC00460 inhibited HNSCC cell proliferation and migration in vitro. Besides, LINC00460 promoted cell progression by sponging miR-4443, and miR-4443 inhibitor could reverse the effects of si-LINC00460 on cell proliferation and migration. In summary, LINC00460 could potentially promote cell progression and epithelial mesenchymal transition by sponging miR-4443 in HNSCC. LINC00460 could be used as a potential therapeutic target for HNSCCs.
Collapse
Affiliation(s)
- Meng Li
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China.,Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Jiangsu, China.,Both the authors contributed equally to this article
| | - Xiaomin Zhang
- Paediatric Dentistry, Affiliated Hospital of Stomatology, Nanjing Medical University, Jiangsu, China.,Both the authors contributed equally to this article
| | - Xu Ding
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Yang Zheng
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Hongming Du
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Huaiqi Li
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Huan Ji
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China.,Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Jiangsu, China
| | - Zeyu Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Pengfei Jiao
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Xiaomeng Song
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| | - Yi Zhong
- Department of Oral Pathology, Institute of Stomatology, Nanjing Medical University, Jiangsu, China
| | - HeMing Wu
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu, China
| |
Collapse
|
18
|
Wu J, Sun S, Liao W, Chen E, Wang X, Song Y, Duan F, Deng W, Li S. LINC00460 promotes pancreatic cancer progression by sponging miR-491-5p. J Gene Med 2021; 23:e3333. [PMID: 33789360 DOI: 10.1002/jgm.3333] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/21/2021] [Accepted: 03/21/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND A growing body of studies have suggested that LINC00460 is instrumental in tumorigenesis and tumour progression. Nonetheless, the biological function and mechanisms of LINC00460 in pancreatic ductal adenocarcinoma (PDAC) remain vague. METHODS Analysis based on public databases and a quantitative reverse transcription-polymerase chain reaction were performed to screen for differentially expressed lncRNAs in PDAC and to detect LINC00460 expression in PDAC cell lines and clinical samples. The survival of patients in the up-regulated and down-regulated LINC00460 expression groups was compared by using the Kaplan-Meier method. In addition, the potential biological functions of LINC00460 in PDAC were explored by cell counting kit-8, colony formation, flow cytometry and transwell assays. Furthermore, bioinformatics analysis, luciferase reporter assays and rescue experiments were applied to demonstrate the mechanism by which LINC00460 could directly bind to and inhibit miR-491-5p. RESULTS LINC00460 is up-regulated in PDAC and correlates with adverse survival outcomes. The results of functional tests verified that LINC00460 knockdown inhibited both cell proliferation and cell migration. Additionally, knockdown led to G0/G1 cell cycle blockage and enhanced cell apoptosis. Mechanistic investigations revealed that LINC00460 directly binds to and attenuates the tumour suppressor miR-491-5p, thus accelerating PDAC progression. CONCLUSIONS This research showed that LINC00460 is overexpressed in PDAC and correlates with adverse clinical outcomes. Additionally, LINC00460 promotes the aggressiveness of PDAC by targeting miR-491-5p. Thus, LINC00460 may serve as diagnostic biomarker of PDAC and a new target for PDAC therapy.
Collapse
Affiliation(s)
- Jiali Wu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Shuxin Sun
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wei Liao
- The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenhzen, China
| | - Enni Chen
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xiaonan Wang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yunda Song
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Fangting Duan
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wuguo Deng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Shengping Li
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| |
Collapse
|
19
|
Cisneros-Villanueva M, Hidalgo-Pérez L, Cedro-Tanda A, Peña-Luna M, Mancera-Rodríguez MA, Hurtado-Cordova E, Rivera-Salgado I, Martínez-Aguirre A, Jiménez-Morales S, Alfaro-Ruiz LA, Arellano-Llamas R, Tenorio-Torres A, Domínguez-Reyes C, Villegas-Carlos F, Ríos-Romero M, Hidalgo-Miranda A. LINC00460 Is a Dual Biomarker That Acts as a Predictor for Increased Prognosis in Basal-Like Breast Cancer and Potentially Regulates Immunogenic and Differentiation-Related Genes. Front Oncol 2021; 11:628027. [PMID: 33912452 PMCID: PMC8074675 DOI: 10.3389/fonc.2021.628027] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 03/10/2021] [Indexed: 12/23/2022] Open
Abstract
Breast cancer (BRCA) is a serious public health problem, as it is the most frequent malignant tumor in women worldwide. BRCA is a molecularly heterogeneous disease, particularly at gene expression (mRNAs) level. Recent evidence shows that coding RNAs represent only 34% of the total transcriptome in a human cell. The rest of the 66% of RNAs are non−coding, so we might be missing relevant biological, clinical or regulatory information. In this report, we identified two novel tumor types from TCGA with LINC00460 deregulation. We used survival analysis to demonstrate that LINC00460 expression is a marker for poor overall (OS), relapse-free (RFS) and distant metastasis-free survival (DMFS) in basal-like BRCA patients. LINC00460 expression is a potential marker for aggressive phenotypes in distinct tumors, including HPV-negative HNSC, stage IV KIRC, locally advanced lung cancer and basal-like BRCA. We show that the LINC00460 prognostic expression effect is tissue-specific, since its upregulation can predict poor OS in some tumors, but also predicts an improved clinical course in BRCA patients. We found that the LINC00460 expression is significantly enriched in the Basal-like 2 (BL2) TNBC subtype and potentially regulates the WNT differentiation pathway. LINC00460 can also modulate a plethora of immunogenic related genes in BRCA, such as SFRP5, FOSL1, IFNK, CSF2, DUSP7 and IL1A and interacts with miR-103-a-1, in-silico, which, in turn, can no longer target WNT7A. Finally, LINC00460:WNT7A ratio constitutes a composite marker for decreased OS and DMFS in Basal-like BRCA, and can predict anthracycline therapy response in ER-BRCA patients. This evidence confirms that LINC00460 is a master regulator in BRCA molecular circuits and influences clinical outcome.
Collapse
Affiliation(s)
- Mireya Cisneros-Villanueva
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México.,Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Mexico
| | - Lizbett Hidalgo-Pérez
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México.,Programa de Doctorado en Ciencias Biomédicas, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Alberto Cedro-Tanda
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | - Mónica Peña-Luna
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | | | - Eduardo Hurtado-Cordova
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | - Irene Rivera-Salgado
- Departamento de Anatomía Patológica, Hospital Central Sur de Alta Especialidad, Petróleos Mexicanos, Ciudad de México, México
| | - Alejandro Martínez-Aguirre
- Departamento de Anatomía Patológica, Hospital Central Sur de Alta Especialidad, Petróleos Mexicanos, Ciudad de México, México
| | - Silvia Jiménez-Morales
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | - Luis Alberto Alfaro-Ruiz
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | - Rocío Arellano-Llamas
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| | | | | | | | - Magdalena Ríos-Romero
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México.,Posgrado en Ciencias Biológicas, Unidad de Posgrado, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México
| | - Alfredo Hidalgo-Miranda
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), Ciudad de México, México
| |
Collapse
|
20
|
Yang Y, Wang R, Feng L, Ma H, Fang J. LINC00460 Promotes Cell Proliferation, Migration, Invasion, and Epithelial-Mesenchymal Transition of Head and Neck Squamous Cell Carcinoma via miR-320a/BGN Axis. Onco Targets Ther 2021; 14:2279-2291. [PMID: 33833526 PMCID: PMC8019668 DOI: 10.2147/ott.s282947] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 01/26/2021] [Indexed: 12/25/2022] Open
Abstract
Purpose Long non-coding RNAs (lncRNAs) play critical roles in cancer onset and development, including head and neck squamous cell carcinoma (HNSCC). This study aimed to investigate the biological role of LINC00460 and the mechanisms underlying epithelial-mesenchymal transition (EMT) in HNSCC. Methods Aberrantly LINC00460 expression in HNSCC and overall survival outcomes were constructed using the TCGA database. Quantitative real-time polymerase chain reaction (RT-qPCR) was applied to examine the LINC00460 expression level in HNSCC cell lines. The role of LINC00460 knockdown on HNSCC cell growth, migration, invasion, and EMT was investigated in vitro using cell counting kit-8 (CCK-8), colony formation, transwell assay, and Western blot assay. Besides, bioinformatics prediction, dual-luciferase reporter assay, and RNA immunoprecipitation (RIP) were performed to reveal the interaction among LINC00460 and its target genes. The function of the LINC00460/miR-320a/BGN axis in HNSCC cells was clarified by rescue assays. Furthermore, the in vivo effects of LINC00460 on tumor growth were investigated using mice xenograft models. Results In this study, LINC00460 was upregulated in HNSCC tissues and cells and was associated with poor clinical prognosis. Further functional analysis showed that LINC00460 knockdown decreased HNSCC cell proliferation, migration, invasion, as well as EMT in vitro. Mechanistic investigation indicated that LINC00460 sponged miR-320a to upregulate Biglycan (BGN) expression, thereby facilitating HNSCC progression and induced EMT. Moreover, knockdown of LINC00460 significantly suppressed the progression of HNSCC cells in vivo. Conclusion Taken together, LINC00460 mediates miR-320a/BGN signaling axis to promote cell proliferation, migration, invasion, and induce the EMT process in HNSCC cells. Our findings elucidated a novel mechanism underlying the progression of HNSCC. LINC00460 could serve as a potential therapeutic target for the treatment of HNSCC.
Collapse
Affiliation(s)
- Yifan Yang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, People's Republic of China.,Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, 100005, People's Republic of China
| | - Ru Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, People's Republic of China.,Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, 100005, People's Republic of China
| | - Ling Feng
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, People's Republic of China.,Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, 100005, People's Republic of China
| | - Hongzhi Ma
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, People's Republic of China.,Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, 100005, People's Republic of China
| | - Jugao Fang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, People's Republic of China.,Key Laboratory of Otolaryngology Head and Neck Surgery (Ministry of Education of China), Beijing Institute of Otolaryngology, Beijing, 100005, People's Republic of China.,Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing, 100730, People's Republic of China
| |
Collapse
|
21
|
Wu K, Wang X, Yu H, Yu Z, Wang D, Xu X. LINC00460 facilitated tongue squamous cell carcinoma progression via the miR-320b/IGF2BP3 axis. Oral Dis 2021; 28:1496-1508. [PMID: 33660359 DOI: 10.1111/odi.13828] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/16/2021] [Accepted: 02/25/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE We aimed to explore the role of long intergenic non-protein coding RNA 460 (LINC00460) in tongue squamous cell carcinoma (TSCC). METHODS We enrolled 27 TSCC patients to explore LINC00460 expression in clinical TSCC samples. RT-qPCR measured expression of molecules in this research. Loss-of-function assays explored biological function of LINC00460 in TSCC cells. RNA pull-down assay, luciferase reporter assay, and RIP assay investigated mechanism of LINC00460 underlying TSCC cells. RESULTS TSCC tissues and cell lines both showed high expression of LINC00460. Functionally, LINC00460 downregulation inhibited TSCC cell growth and promoted TSCC cell apoptosis. Additionally, LINC00460 silencing suppressed tumor growth in vivo. Mechanistically, LINC00460 bound with microRNA 320b (miR-320b) in TSCC cells. MiR-320b overexpression suppressed TSCC cell growth and promoted TSCC cell apoptosis. Moreover miR-320b targeted insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3) 3'untranslated region in TSCC cells. Furthermore, IGF2BP3 silencing suppressed TSCC cell growth and promoted TSCC cell apoptosis. IGF2BP3 upregulation countervailed effects of silenced LINC00460 on TSCC cells. The LINC00460/miR-320b/IGF2BP3 axis was associated with lymph node metastasis of TSCC patients. CONCLUSION Our research illustrated that LINC00460 facilitated TSCC progression via the miR-320b/IGF2BP3 axis, highlighting a potential insight for the treatment of TSCC.
Collapse
Affiliation(s)
- Kankui Wu
- Department of Stomatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaowei Wang
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, China
| | - Huiming Yu
- Department of Stomatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, China
| | - Zhifen Yu
- Department of Stomatology, Huaian Maternal and Child Health Hospital, Huaian, China
| | - Dazhao Wang
- Department of Stomatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, China
| | - Xiaohong Xu
- Department of Stomatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
22
|
Hou P, Meng S, Li M, Lin T, Chu S, Li Z, Zheng J, Gu Y, Bai J. LINC00460/DHX9/IGF2BP2 complex promotes colorectal cancer proliferation and metastasis by mediating HMGA1 mRNA stability depending on m6A modification. J Exp Clin Cancer Res 2021; 40:52. [PMID: 33526059 PMCID: PMC7851923 DOI: 10.1186/s13046-021-01857-2] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/25/2021] [Indexed: 12/26/2022]
Abstract
Background Increasing studies have shown that long noncoding RNAs (lncRNAs) are pivotal regulators participating in carcinogenic progression and tumor metastasis in colorectal cancer (CRC). Although lncRNA long intergenic noncoding RNA 460 (LINC00460) has been reported in CRC, the role and molecular mechanism of LINC00460 in CRC progression still requires exploration. Methods The expression levels of LINC00460 were analyzed by using a tissue microarray containing 498 CRC tissues and their corresponding non-tumor adjacent tissues. The correlations between the LINC00460 expression level and clinicopathological features were evaluated. The functional characterization of the role and molecular mechanism of LINC00460 in CRC was investigated through a series of in vitro and in vivo experiments. Results LINC00460 expression was increased in human CRC, and high LINC00460 expression was correlated with poor five-year overall survival and disease-free survival. LINC00460 overexpression sufficiently induced the epithelial–mesenchymal transition and promoted tumor cell proliferation, migration, and invasion in vitro and tumor growth and metastasis in vivo. In addition, LINC00460 enhanced the protein expression of high-mobility group AT-hook 1 (HMGA1) by directly interacting with IGF2BP2 and DHX9 to bind the 3′ untranslated region (UTR) of HMGA1 mRNA and increased the stability of HMGA1 mRNA. In addition, the N6-methyladenosine (m6A) modification of HMGA1 mRNA by METTL3 enhanced HMGA1 expression in CRC. Finally, it suggested that HMGA1 was essential for LINC00460-induced cell proliferation, migration, and invasion. Conclusions LINC00460 may be a novel oncogene of CRC through interacting with IGF2BP2 and DHX9 and bind to the m6A modified HMGA1 mRNA to enhance the HMGA1 mRNA stability. LINC00460 can serve as a promising predictive biomarker for the diagnosis and prognosis among patients with CRC. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01857-2.
Collapse
Affiliation(s)
- Pingfu Hou
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Sen Meng
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China
| | - Minle Li
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China
| | - Tian Lin
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China
| | - Sufang Chu
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China
| | - Zhongwei Li
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China
| | - Junnian Zheng
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China. .,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
| | - Yuming Gu
- Department of Interventional Radiography, Affiliated Hospital of Xuzhou Medical University, 99 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China.
| | - Jin Bai
- Cancer Institute, Xuzhou Medical University, 84 West Huaihai Road, Xuzhou, Jiangsu Province, 221002, China. .,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
| |
Collapse
|
23
|
Ruan T, Lu S, Xu J, Zhou JY. lncRNA LINC00460 Functions as a Competing Endogenous RNA and Regulates Expression of BGN by Sponging miR-149-5p in Colorectal Cancer. Technol Cancer Res Treat 2021; 20:1533033820964238. [PMID: 33472555 PMCID: PMC7829460 DOI: 10.1177/1533033820964238] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background and Aim: There are an increasing number of studies indicating the important roles
served by long non-coding RNAs (lncRNAs) in the development of different
types of cancer. LINC00460 is a novel identified lncRNA that was found to be
upregulated in colorectal cancer. However, the biological roles of LINC00460
in colorectal cancer have yet to be fully elucidated. This study was aimed
to investigate the functions and molecular mechanisms of LINC00460 on
colorectal cancer metastasis. Methods: Expression of LINC00460 and biglycan (BGN) in colorectal
cancer tissues and cell lines were quantified by real time PCR or western
blotting assay. Cell migration and invasion assays were performed to
determine the effect of LINC00460 on tumor metastasis in vitro. The binding
interaction between microRNA-149-5p and LINC00460 was revealed by luciferase
reporter assay. Results: In the present study, lncRNA LINC00460 was shown to be upregulated in
colorectal cancer tissues, and overexpression of LINC00460 significantly
promoted metastasis of colorectal cancer in vitro. Furthermore, miR-149-5p
interacted with LINC00460, and they negatively regulated expression of each
other. Transfection of miR-149-5p mimics partially counteracted the tumor
metastasis-promoting effects induced by LINC00460 overexpression. Finally,
overexpression of LINC00460 upregulated the expression levels of
biglycan, a target gene of miR-149-5p, which has also
been identified as an oncogenic driver in colorectal cancer. Conclusion: Taken together, the present study demonstrated that LINC00460 promoted
metastasis of CRC by sponging miR-149-5p and thereby affecting
biglycan expression levels.
Collapse
Affiliation(s)
- Tingyan Ruan
- Department of Radiation Oncology, 74566The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu People's Republic of China
| | - Shourong Lu
- Department of Geriatrics, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, People's Republic of China
| | - Junying Xu
- Department of Radiation Oncology, 74566The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Ju-Ying Zhou
- Department of Radiation Oncology, 74566The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu People's Republic of China
| |
Collapse
|
24
|
Cheng J, Lou Y, Jiang K. Downregulation of long non-coding RNA LINC00460 inhibits the proliferation, migration and invasion, and promotes apoptosis of pancreatic cancer cells via modulation of the miR-320b/ARF1 axis. Bioengineered 2020; 12:96-107. [PMID: 33345740 PMCID: PMC8806231 DOI: 10.1080/21655979.2020.1863035] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pancreatic adenocarcinoma (PAAD) ranks among the most lethal cancers worldwide with high mortality. A marked increase in the level of long non-coding RNA LINC00460 was reported in PAAD patients, in comparison with the healthy controls. However, the underlying mechanisms of the above phenomenon are not yet well understood. Hence, the present study was designed to investigate the molecular mechanism underlying the role of LINC00460 in proliferation, migration and invasion of pancreatic cancer (PC) cells. It was found in our study that LINC00460 knockdown inhibited SW1990 cell proliferation, migration and invasion and promoted its apoptosis. Moreover, miR-320b was targeted straight and its expression was downregulated by LINC00460, whose knockdown led to a reduction in ARF1 expression. Interestingly, miR-320b downregulation partly reversed the effect of LINC00460 knockdown on the proliferation, migration, invasion and apoptosis of SW1990 cells, as well as ARF1expression. In conclusion, LINC00460 knockdown inhibited the proliferation, migration and invasion, and promotes the apoptosis of SW1990 cells via modulation of the miR-320b/ARF1 axis. Thus, LINC00460 can be perceived as a promising target in the treatment of PAAD.
Collapse
Affiliation(s)
- Jian Cheng
- Department of Hepatobiliary, Pancreatic and Minimally Invasive Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College , Hangzhou City, Zhejiang Province, PR China
| | - Yanghui Lou
- Department of Anesthesiology, Yiwu Maternity and Children Hospital , Yiwu City, Zhejiang Province, PR China
| | - Kai Jiang
- Department of Hepatobiliary, Pancreatic and Minimally Invasive Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College , Hangzhou City, Zhejiang Province, PR China
| |
Collapse
|
25
|
Li F, Zhu W, Wang Z. Long noncoding RNA LINC00460 promotes the progression of cervical cancer via regulation of the miR-361-3p/Gli1 axis. Hum Cell 2020; 34:229-237. [PMID: 33063235 DOI: 10.1007/s13577-020-00447-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/02/2020] [Indexed: 12/30/2022]
Abstract
Mounting evidence indicates that the long non-coding RNA (lncRNA) LINC00460 plays an oncogenic role in tumor progression; however, the role of LINC00460 in cervical cancer (CC) remains unknown. In this study, we found that LINC00460 was frequently upregulated in CC tissues and cell lines. Knockdown of LINC00460 repressed CC cell growth and invasion in vitro and attenuated tumorigenesis in vivo. Mechanistically, miR-361-3p was predicted as a direct target of LINC00460 by bioinformatics analysis, which was further confirmed by qRT-PCR, dual-luciferase reporter assays, and rescue experiments. Furthermore, miR-361-3p targeted the 3' untranslated region (UTR) of Gli1 mRNA and repressed its expression. Taken together, our study revealed that LINC00460 functions as an oncogenic lncRNA in CC, indicating the likely participation of the LINC00460/miR-361-3p/Gli1 pathway in the disease. Accordingly, our results provide new insight into CC tumorigenesis.
Collapse
Affiliation(s)
- Fan Li
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Gusu District, Suzhou, 215000, China
- Department of Gynaecology and Obestetrics, Shanghai the Eighth People's Hospital, No.8 Caobao Road, Xuhui District, Shanghai, 200235, China
| | - Weipei Zhu
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Gusu District, Suzhou, 215000, China.
| | - Zhijie Wang
- Department of Gynaecology and Obestetrics, Shanghai the Eighth People's Hospital, No.8 Caobao Road, Xuhui District, Shanghai, 200235, China.
| |
Collapse
|
26
|
Meng X, Sun W, Yu J, Zhou Y, Gu Y, Han J, Zhou L, Jiang X, Wang C. LINC00460-miR-149-5p/miR-150-5p-Mutant p53 Feedback Loop Promotes Oxaliplatin Resistance in Colorectal Cancer. Mol Ther Nucleic Acids 2020; 22:1004-15. [PMID: 33251049 DOI: 10.1016/j.omtn.2020.10.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 10/10/2020] [Indexed: 02/07/2023]
Abstract
Oxaliplatin resistance is a major challenge in the clinical treatment for advanced colorectal cancer (CRC). Long non-coding RNAs (lncRNAs) are involved in tumorigenesis and progression as critical regulators, while their potential roles in chemoresistance are poorly understood. In this study, we report that the LINC00460-miR-149-5p/miR-150-5p-mutant p53 feedback loop is responsible for oxaliplatin resistance in CRC. First, LINC00460 was found to exhibit higher expression in oxaliplatin-resistant CRC (CRC/OxR) cells compared with parental oxaliplatin-sensitive ones, and this expression pattern depends on mutant p53 (SW480/OxR), not wild-type p53 (HCT116/OxR). Oxaliplatin-induced LINC00460 in SW480/OxR cells was mainly located in the cytoplasm and was associated with AGO2 protein. LINC00460 functions as a competing endogenous RNA (ceRNA) to promote oxaliplatin resistance through sequestering miR-149-5p/miR-150-5p and upregulating the expression of the microRNA (miRNA) target p53. Knockdown of LINC00460 sensitized SW480/OxR cells to oxaliplatin by modulating p53 in vitro and in vivo. In turn, mutant p53 positively regulated the expression of LINC00460, thus forming a feedback loop. Clinical data showed that LINC00460 was upregulated in CRC tissues compared with paired normal tissues and was significantly correlated with clinical stage and node (N) status. Our findings uncover a mechanism for the LINC00460-miR-149-5p/miR-150-5p-mutant p53 feedback loop in oxaliplatin resistance of CRC, and they provide potential therapeutic targets for tumor chemoresistance.
Collapse
|
27
|
Li J, Huang S, Zhang Y, Zhuo W, Tong B, Cai F. LINC00460 Enhances Bladder Carcinoma Cell Proliferation and Migration by Modulating miR-612/FOXK1 Axis. Pharmacology 2020; 106:79-90. [PMID: 33027786 PMCID: PMC7949225 DOI: 10.1159/000509255] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/06/2020] [Indexed: 12/25/2022]
Abstract
INTRODUCTION LincRNA (long intergenic noncoding RNA) has been indicated as a mediator in tumorigenesis of bladder carcinoma. This study was performed to evaluate the role of LINC00460 in bladder carcinoma progression. METHODS Expression levels of LINC00460 in bladder carcinoma tissues and cell lines were analyzed via qRT-PCR. MTT, EdU (5-ethynyl-2'-deoxyuridine) staining, and colony formation assays were utilized to evaluate cell viability and proliferation. The wound healing assay was performed to evaluate bladder cancer cell migration, and the transwell assay was used to evaluate cell invasion. The microRNA (miRNA) target of LINC00460 and the corresponding target gene were validated via the dual luciferase activity assay. The tumorigenic function of LINC00460 was determined via establishment of a xenotransplanted tumor model. RESULTS LINC00460 was elevated in bladder carcinoma tissues and cell lines. Elevated LINC00460 was associated with shorter overall survival of bladder carcinoma patients. Overexpression of LINC00460 promoted cell viability, proliferation, invasion, and migration, while silencing of LINC00460 indicated the opposite effect on bladder carcinoma progression. LINC00460 could directly bind to miR-612 and inhibit miR-612 expression. Moreover, LINC00460 expression was negatively correlated with miR-612 in patients with bladder carcinoma. FOXK1 (Forkhead Box K1) was identified as the target of miR-612 and upregulated in patients with bladder carcinoma. Overexpression of FOXK1 attenuated interference of LINC00460-inhibited bladder carcinoma progression. Knockdown of LINC00460 suppressed in vivo bladder carcinoma growth. CONCLUSIONS LINC00460 promoted bladder carcinoma progression via sponging miR-612 to facilitate FOXK1 expression, suggesting that LINC00460 might have the potential of being explored as a therapeutic target for treatment of bladder carcinoma.
Collapse
Affiliation(s)
| | - Sihuai Huang
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Yanmei Zhang
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Weifeng Zhuo
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Baocheng Tong
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Fangzhen Cai
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China,
| |
Collapse
|
28
|
Hong H, Sui C, Qian T, Xu X, Zhu X, Fei Q, Yang J, Xu M. Long noncoding RNA LINC00460 conduces to tumor growth and metastasis of hepatocellular carcinoma through miR-342-3p-dependent AGR2 up-regulation. Aging (Albany NY) 2020; 12:10544-55. [PMID: 32493835 DOI: 10.18632/aging.103278] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/28/2020] [Indexed: 02/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common malignant tumor in the world. It ranks third among cancer-induced deaths worldwide and has the characteristics of high metastasis and high recurrence rate. Long non-coding RNA (LncRNA) LINC00460 is significantly up-regulated in multiple types of cancers and is closely related to the progression of tumors. However, effects of LINC00460 and corresponding regulatory path in HCC are still poorly investigated. In our study, we found that expression of LINC00460 was up-regulated in HCC tissues and cell lines compared with the control. Then we revealed that knockdown of LINC00460 suppressed cell proliferation and cell mobility and induced cell apoptosis in HCC cells. Further study demonstrated that knockdown of LINC00460 suppressed the progression of HCC by elevating the expression of microRNA (miRNA, miR)-342-3p. Besides that, metastasis marker, Anterior gradient homolog 2 (AGR2) was found to be a target of miR-342-3p and overexpression of AGR2 promoted the progression of HCC. Finally, the in vivo experiments further verified the anti-tumor effects of LINC00460 / miR-342-3p / AGR2 axis in HCC. The LINC00460 / miR-342-3p / AGR2 axis exerts anti-tumor effect in HCC in vitro and in vivo, consolidating and expanding the research about targeted gene therapy for early diagnosis and treatment of HCC.
Collapse
|
29
|
Sun J, Yang J, Lv K, Guan J. Long non-coding RNA LINC00460 predicts poor survival and promotes cell viability in pancreatic cancer. Oncol Lett 2020; 20:1369-75. [PMID: 32724379 DOI: 10.3892/ol.2020.11652] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 04/03/2020] [Indexed: 02/07/2023] Open
Abstract
Emerging evidence has demonstrated that long non-coding RNAs (lncRNAs) possess great potential as vital biomarkers and powerful therapeutic targets in various diseases. In the present study, differentially expressed transcripts in pancreatic cancer (PC) were identified, and a competing endogenous RNA (ceRNA) network was constructed using The Cancer Genome Atlas database. An independent cohort consisting of 59 patients with PC was used to validate the clinical value of the identified lncRNA. Cell viability and colony formation assays were used to evaluate the biological functions of the lncRNA in PC cells. The present bioinformatic analysis revealed that LINC00460 was upregulated in PC samples with a prognostic significance. In the ceRNA network, it potentially targeted the microRNA-503/cyclin D1 axis. The results of real-time quantitative PCR confirmed that LINC00460 was significantly upregulated in cancer tissues and was associated with poor survival of patients with PC. The expression levels of LINC00460 were significantly associated with tumor size, but not with age, sex, differentiation, lymph node metastasis, vascular invasion and tumor stage. Through univariate and multivariate analysis, LINC00460 was characterized as an independent prognostic biomarker for PC. Further in vitro experiments demonstrated that suppressing LINC00460 using small interfering RNA inhibited viability and colony formation of PC cells. In summary, LINC00460 may be an independent prognostic biomarker for PC and may serve as an oncogenic lncRNA that promotes PC cell growth. Further in-depth exploration is required to reveal the specific biological mechanism of LINC00460 in PC cells.
Collapse
|
30
|
Wang X, Gan X, Liu C, Zhang W. LINC00460 accelerates progression of ovarian cancer by activating transcriptional factor ZNF703. Oncol Lett 2020; 19:4189-4194. [PMID: 32382355 PMCID: PMC7202304 DOI: 10.3892/ol.2020.11487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 12/13/2019] [Indexed: 01/03/2023] Open
Abstract
Potential function of LINC00460 in the progression of ovarian cancer (OC) and its underlying mechanism were studied. LINC00460 level in OC tissues and normal ovarian tissues was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Correlation between LINC00460 level with tumor stage, tumor size and pathological subtypes of OC was analyzed. Potential influence of LINC00460 on proliferative ability and cell cycle progression was evaluated. In vivo tumorigenesis model was conducted by administration of A2780 cells transfected with sh-NC or sh-LINC00460 in nude mice. Predicted through JASPAR database, ZNF703 was screened out as the transcriptional factor binding to LINC00460 promoter region. Chromatin immunoprecipitation (ChIP) assay was performed to verify the binding relationship between ZNF703 and LINC00460. The potential role of ZNF703 in LINC00460-mediated OC progression was examined. LINC00460 was upregulated in OC tissues and cell lines. Its level increased with the deterioration of tumor stage and enlargement of tumor size. LINC00460 was highly expressed in serous ovarian cancer relative to other subtypes of OC. Knockdown of LINC00460 attenuated proliferative ability and arrested cell cycle of A2780 and HO8910 cells. ZNF703 was upregulated in OC tissues. ChIP assay showed pronounced enrichment of LINC00460 in ZNF703. Rescue experiments revealed that ZNF703 overexpression reversed the regulatory effects of LINC00460 on cellular behavior of OC cells. LINC00460 is upregulated in OC tissues and cell lines, which is closely related to tumor progression. It accelerates proliferative ability and cell cycle progression of OC cells via interacting with ZNF703.
Collapse
Affiliation(s)
- Xin Wang
- Department of Gynaecology and Obstetrics, Yuncheng County Hospital of Traditional Chinese Medicine, Heze, Shandong 274700, P.R. China
| | - Xinghua Gan
- Department of Gynaecology and Obstetrics, Yuncheng County Hospital of Traditional Chinese Medicine, Heze, Shandong 274700, P.R. China
| | - Chengcheng Liu
- Department of Gynaecology and Obstetrics, Yan Kuang Xin Li Cheng General Hospital, Jining, Shandong 272000, P.R. China
| | - Wenfeng Zhang
- Department of Gynaecology and Obstetrics, Yuncheng County Hospital of Traditional Chinese Medicine, Heze, Shandong 274700, P.R. China
| |
Collapse
|
31
|
Yang J, Li K, Chen J, Hu X, Wang H, Zhu X. Long Noncoding RNA LINC00460 Promotes Hepatocellular Carcinoma Progression via Regulation of miR-342-3p/AGR2 Axis. Onco Targets Ther 2020; 13:1979-1991. [PMID: 32184630 PMCID: PMC7064292 DOI: 10.2147/ott.s239258] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/30/2020] [Indexed: 12/31/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is the leading cause of cancer-related death worldwide. LINC00460, a novel long non-coding RNA (lncRNA), was recently confirmed as an oncogene in various cancers. However, the biological function and underlying mechanism of LINC00460 in HCC is largely obscure. Methods Fifty pairs of tumor tissue and adjacent normal tissues from HCC patients, as well as six HCC cell lines and a normal human hepatic epithelial cell line were subjected to qRT-PCR assay to evaluate the expression levels of LINC00460. CCK-8 assays were used to detect the proliferation of HCC cells. Transwell assay was used to measure the migration and invasion abilities of HCC cells. RNA pull-down and luciferase assays were performed to verify the direct interaction between LINC00460 and miR-342-3p. A xenograft model of HCC was established to validate the in vivo function of LINC00460 in HCC progression. Results We firstly detected LINC00460 expression was significantly upregulated in both HCC tumor tissues and cell lines. The upregulation of LINC00460 was positively associated with HCC progression. Functionally, LINC00460 facilitated HCC cell proliferation, migration, and invasion capacities, which due to that LINC00460 could physically bind to and repress miR-342-3p to elevate the expression of AGR2. Conclusion Our data firstly reveal the clinical relevance, biological function, and regulatory mechanism of LINC00460 in HCC development. LINC00460 promotes HCC progression by elevating AGR2 expression via sponging miR-342-3p, providing a promising therapeutic target for HCC treatment.
Collapse
Affiliation(s)
- Jing Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China.,Department of Gastroenterology and Hepatology, The People's Hospital of Yichun City, Yichun 336000, People's Republic of China
| | - Kun Li
- Department of General Surgery, The People's Hospital of Yichun City, Yichun 336000, People's Republic of China
| | - Jian Chen
- Department of Oncology, The People's Hospital of Yichun City, Yichun 336000, People's Republic of China
| | - Xiaoxiong Hu
- Clinic Research Center of People's Hospital of Yichun City, Yichun 336000, People's Republic of China.,Department of Infection Disease, The People's Hospital of Yichun City, Yichun 336000, People's Republic of China
| | - He Wang
- Department of Gastroenterology and Hepatology, The People's Hospital of Yichun City, Yichun 336000, People's Republic of China
| | - Xuan Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| |
Collapse
|
32
|
Yang J, Lian Y, Yang R, Lian Y, Wu J, Liu J, Wang K, Xu H. Upregulation of lncRNA LINC00460 Facilitates GC Progression through Epigenetically Silencing CCNG2 by EZH2/LSD1 and Indicates Poor Outcomes. Mol Ther Nucleic Acids 2020; 19:1164-1175. [PMID: 32059342 PMCID: PMC7016164 DOI: 10.1016/j.omtn.2019.12.041] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/11/2019] [Accepted: 12/29/2019] [Indexed: 01/24/2023]
Abstract
Non-protein-coding functional elements in the human genome in the postgenomic biology field have been drawing great attention in recent years. Thousands of long non-coding RNAs (lncRNAs) have been found to be expressed in various tumors. Yet only a small proportion of these lncRNAs have been well characterized. We have demonstrated that LINC00460 could affect cell proliferation through epigenetic regulation of KLF2 and CUL4A in human colorectal cancer. However, the clinical significance and biological role of LINC00460 in gastric cancer (GC) remain largely unknown. In this research, we discovered that LINC00460 is remarkably upregulated in GC tissues compared to the non-tumor tissues. Additionally, LINC00460 served as an independent prognostic marker in GC. Functionally, proliferation of GC cells could be regulated by LINC00460 both in vitro and in vivo. RNA sequencing (RNA-seq) analysis for the whole transcriptome indicated that LINC00460 may serve as a key regulatory factor in the tumorigenesis of GC. What's more, the biological function of LINC00460 was mediated, to certain extent, by the direct interaction with enhancer of zeste homolog 2 (EZH2) and lysine (K)-specific demethylase 1A (LSD1) proteins. Further analyses indicated that LINC00460 promoted GC proliferation at least partly through the downregulation of tumor suppressor-gene Cyclin G2 (CCNG2), which is mediated by EZH2 and LSD1. In conclusion, our results suggested that LINC00460 acted as an oncogene in GC to inhibit the expression of CCNG2 at least partly by binding with EZH2 and LSD1. Our study could provide additional insights into the development of novel target therapeutic methods for GC.
Collapse
Affiliation(s)
- Jiebin Yang
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, P.R. China; Department of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, P.R. China
| | - Yikai Lian
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, P.R. China; School of Medicine, Xiamen University, Xiamen, Fujian, P.R. China
| | - Renzhi Yang
- School of Medicine, Xiamen University, Xiamen, Fujian, P.R. China
| | - Yifan Lian
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, P.R. China; School of Medicine, Xiamen University, Xiamen, Fujian, P.R. China
| | - Jingtong Wu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, P.R. China; School of Medicine, Xiamen University, Xiamen, Fujian, P.R. China
| | - Jingjing Liu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, P.R. China
| | - Keming Wang
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China.
| | - Hongzhi Xu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, P.R. China.
| |
Collapse
|
33
|
Dai C, Zhang Y, Ni H, Kuang Y, Xu Z. Prognostic significance of LINC00460 overexpression in solid tumours: a meta-analysis. Postgrad Med J 2020; 96:286-295. [PMID: 32054779 DOI: 10.1136/postgradmedj-2019-137172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/11/2020] [Accepted: 01/19/2020] [Indexed: 12/27/2022]
Abstract
The prognostic value of long intergenic non-protein coding RNA 460 (LINC00460) overexpression in human solid malignant tumours remains unclear. Therefore, we conducted the meta-analysis to systematically review and assess the evidence for the correlation between LINC00460 overexpression and clinicopathological features and overall survival (OS) of patients with solid malignant tumour. An electronic search of PubMed, EMBASE, Web of Science, CNKI, Cochrane Library, Chinese Biological Medical Literature database and WanFang database was applied to select eligible articles. Pooled ORs or HRs with their 95% CIs were calculated to estimate the effects. 9 eligible studies with a total of 935 patients were enrolled in this meta-analysis. The results revealed that high LINC00460 expression was associated with positive lymph node metastasis (positive vs negative: OR=2.97, 95% CI 1.74 to 5.05, p=0.812), advanced tumour-node-metastasis stage (III+IV vs I+II: OR=2.82, 95% CI 1.64 to 4.85, p=0.193) and poorer differentiation (high vs low: OR=0.60, 95% CI 0.36 to 0.99, p=0.569). Additionally, the overexpression of LINC00460 could predict a poorer OS (HR=1.57, 95% CI 1.39 to 1.77) and the shorter disease-free survival (HR=2.32, 95% CI 1.25 to 4.31). Furthermore, according to subgroup analysis and meta-regression results, the heterogeneity of current meta-analysis may be attributed to the differences of cancer type and follow-up months. High expression of LINC00460 could predict poor prognosis in patients with solid malignant tumour. LINC00460 may serve as potential prognostic biomarker for clinical outcomes in various human solid malignant tumours.
Collapse
Affiliation(s)
- Chen Dai
- General Surgery, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yan Zhang
- Oncology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Hao Ni
- Pathology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yuting Kuang
- General Surgery, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhihua Xu
- General Surgery, First Affiliated Hospital of Soochow University, Suzhou, China
| |
Collapse
|
34
|
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most prevalent cancers and a common cause of cancer-related death. Long noncoding RNAs have been reported to play an essential role in the development of CRC. AIMS This study aimed to investigate the possible function of LINC00460 in CRC. METHODS Initially, microarray-based gene expression profiling of CRC was employed to identify differentially expressed genes. Next, the expression of LINC00460 was examined and the cell line presenting with the highest LINC00460 expression was selected for subsequent experimentation. Then, the interaction among LINC00460, ERG, and WWC2 was identified. The effect of LINC00460 on proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT)-related factors as well as tumorigenicity of transfected cells was examined with gain- and loss-of-function experiments. RESULTS LINC00460 was robustly induced while WWC2 was poorly expressed in CRC. In addition, LINC00460 could down-regulate WWC2 through interaction with ERG, which led to promoted invasion, migration, and EMT of CRC cells in addition to tumor growth in vivo. Besides, down-regulation of LINC00460 exerted inhibitory effect on these biological activities. CONCLUSION Taken together, the key findings of the current study provided evidence suggesting that silencing of LINC00460 could potentially suppress EMT of CRC cells by increasing WWC2 via ERG, and highlighting that knockdown of LINC00460 could serve as a therapeutic target for CRC treatment.
Collapse
Affiliation(s)
- Bao Yuan
- Department of Anorectal Surgery, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, Jiangyin, 214400, People's Republic of China
| | - Jing Yang
- Department of General Surgery, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, Jiangyin, 214400, People's Republic of China
| | - Hong Gu
- Department of Anorectal Surgery, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, Jiangyin, 214400, People's Republic of China
| | - Chaoqun Ma
- Department of General Surgery, Affiliated Hospital of Nanjing University of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, People's Republic of China.
| |
Collapse
|
35
|
Zou X, Guo ZH, Li Q, Wang PS. Long Noncoding RNA LINC00460 Modulates MMP-9 to Promote Cell Proliferation, Invasion and Apoptosis by Targeting miR-539 in Papillary Thyroid Cancer. Cancer Manag Res 2020; 12:199-207. [PMID: 32021436 PMCID: PMC6956998 DOI: 10.2147/cmar.s222085] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 11/18/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Increasing evidence shows that Long non-coding RNAs (lncRNAs) involve in the development and progression processes of various cancers, including papillary thyroid cancer (PTC). In this study, we focused on the regulation function of lncRNA LINC00460 in the development of PTC. METHODS Expression of LINC00460 was detected using quantitative real-time PCR (qRT-PCR) and Western blot assay. Cell proliferation, cell apoptosis and cell invasion were determined through CCK-8 assay, flow cytometry, and Transwell assay, respectively. In addition, target sites were detected by the dual-luciferase reporter gene assay. RESULTS LINC00460 expression was markedly up-regulated in PTC tissues and cells compared to their corresponding controls by quantitative real-time PCR (qRT-PCR). Meanwhile, LINC00460 knockdown notably inhibited the proliferation capacity, accelerated the apoptosis and down-regulated the invasion-related proteins (MMP-2, MMP-9, ZEB1) expression. In addition, bioinformatics tools predicted that miR-539 both targeted with the 3'-UTR of LINC00460 and MMP-9, which was confirmed by luciferase reporter assay and Western blot. CONCLUSION These findings indicated that LINC00460 can modulate MMP-9 expression to promote cell proliferation, invasion and apoptosis through targeting miR-539, suggesting act as an oncogenic RNA in PTC and provide a new therapeutic perspective.
Collapse
Affiliation(s)
- Xian Zou
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Department of Surgery, Jiang Yuan Hospital Affiliated to Jiangsu Institute of Nuclear Medicine, Wuxi214063, Jiangsu, People’s Republic of China
| | - Zhi Heng Guo
- Department of Obstetrics, The First Hospital of Jilin University, Changchun130021, Jilin, People’s Republic of China
| | - Qun Li
- Department of Thyroid Surgery, The First Hospital of Jilin University, Changchun130021, Jilin, People’s Republic of China
| | - Pei Song Wang
- Department of Thyroid Surgery, The First Hospital of Jilin University, Changchun130021, Jilin, People’s Republic of China
| |
Collapse
|
36
|
Li G, Kong Q. LncRNA LINC00460 promotes the papillary thyroid cancer progression by regulating the LINC00460/miR-485-5p/Raf1 axis. Biol Res 2019; 52:61. [PMID: 31870440 PMCID: PMC6929379 DOI: 10.1186/s40659-019-0269-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 12/09/2019] [Indexed: 02/06/2023] Open
Abstract
Background Papillary thyroid cancer (PTC) is the most common malignancy of all thyroid cancers. LncRNA LINC00460 has been proved to play roles in the oncogenesis and progression of various tumors, including papillary thyroid cancer. However, the potential molecular mechanism of LINC00460 in PTC is poorly investigated. Results LINC00460 was upregulated in PTC tissues and cells. Raf1 was upregulated in PTC tissues, but miR-485-5p was down-regulated. High LINC00460 expression was associated with poor prognosis. LINC00460 knockdown suppressed proliferation, migration, invation and EMT of PTC cells. Bioinformatics prediction revealed that LINC00460 had binding sites with miR-485-5p, which was validated by luciferase reporter assay. In addition, miR-485-5p was confirmed to directly target Raf1 3′-UTR. Moreover, LINC00460 promoted PTC progression by sponging miR-485-5p to elevate the expression of Raf1. Knockdown of LINC00460 restrained tumor growth in vivo. Conclusion LINC00460 induced proliferation, migration, invation and EMT of PTC cells by regulating the LINC00460/miR-485-5p/Raf1 axis, which indicated that LINC00460 may be a potential biomarker and therapeutic target for PTC.
Collapse
Affiliation(s)
- Guangjun Li
- Department of Oncology, Yuncheng County Hospital of Traditional Chinese Medicine, Heze, 274700, Shandong, China
| | - Qingli Kong
- Department of Oncology, The Affiliated Hospital of Jining Medical University, No. 89, Gutun Road, Jining, 272029, Shandong, China.
| |
Collapse
|
37
|
Hong W, Ying H, Lin F, Ding R, Wang W, Zhang M. lncRNA LINC00460 Silencing Represses EMT in Colon Cancer through Downregulation of ANXA2 via Upregulating miR-433-3p. Mol Ther Nucleic Acids 2019; 19:1209-1218. [PMID: 32069703 PMCID: PMC7019044 DOI: 10.1016/j.omtn.2019.12.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 12/17/2022]
Abstract
Colon cancer (CC), one of the major causes of tumor-associated death, is often presented with a heterogenic pool of cells with unique differentiation patterns. This study explored the functions that LINC00460 displayed in CC by regulating microRNA-433-3p (miR-433-3p) and Annexin A2 (ANXA2). LINC00460 expression was either silenced or overexpressed in HCT-116 and LOVO cells to explore the functional roles of LINC00460 in CC. The relationship between miR-433-3p and LINC00460/ANXA2 was analyzed using dual-luciferase reporter assay, RNA-pull down, and RNA immunoprecipitation (RIP) assays. Cell proliferation, metastasis, invasion, and apoptosis were examined in vitro, and tumorigenicity was evaluated in vivo following LINC00460 silencing. Additionally, the regulatory mechanisms were investigated using LINC00460 and ANXA2 gain- or loss-of-function experiments. We found that LINC00460 was expressed highly in CC. Downregulation of LINC00460 inhibited cell invasion and proliferation in vitro and restrained tumor growth in vivo. Moreover, LINC00460 was able to specifically bind to miR-433-3p to increase the expression of ANXA2. Furthermore, LINC00460 downregulated the E-cadherin expression and upregulated the vimentin and N-cadherin expression by upregulating ANXA2, therefore inducing epithelial-mesenchymal transition. These findings suggested that LINC00460 might function as an oncogenic long non-coding RNA (lncRNA) in CC development and could be explored as a potential biomarker and therapeutic target for CC.
Collapse
Affiliation(s)
- Weiwen Hong
- Department of Anus & Intestine Surgery, Taizhou First People's Hospital, Taizhou 318020, P.R. China
| | - Hongan Ying
- General Department, Taizhou First People's Hospital, Taizhou 318020, P.R. China
| | - Feng Lin
- Department of General Surgery, Taizhou First People's Hospital, Taizhou 318020, P.R. China
| | - Ruliang Ding
- Department of Anus & Intestine Surgery, Taizhou First People's Hospital, Taizhou 318020, P.R. China
| | - Weiya Wang
- Department of Anus & Intestine Surgery, Taizhou First People's Hospital, Taizhou 318020, P.R. China
| | - Meng Zhang
- Department of General Surgery, Taizhou First People's Hospital, Taizhou 318020, P.R. China.
| |
Collapse
|
38
|
Xie X, Xiong G, Wang Q, Ge Y, Cui X. Long non-coding RNA LINC00460 promotes head and neck squamous cell carcinoma cell progression by sponging miR-612 to up-regulate AKT2. Am J Transl Res 2019; 11:6326-6340. [PMID: 31737186 PMCID: PMC6834525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/11/2019] [Indexed: 06/10/2023]
Abstract
LncRNAs (long noncoding RNAs) have been shown to be potentially critical regulators in head and neck squamous cell carcinoma (HNSCC). LncRNA LINC00460 (long intergenic non-protein coding RNA 460), an "oncogene", regulates progression of various tumors. However, the tumorigenic mechanism of LINC00460 on HNSCC is yet to be investigated. In the current study, we discovered that LINC00460 was relatively up-regulated in both HNSCC cancer tissues and cell lines, and predicted a poor prognosis in HNSCC patients. Gain- and loss-of functional studies established that over-expression of LINC00460 promoted cell proliferation, invasion and migration of HNSCC cells in vitro, while the promotion abilities were suppressed via knockdown of LINC00460. Our results identified miR-612 as a novel target of LINC00460, whose expression suggested a negative correlation with LINC00460 in HNSCC tissues and cell lines. LINC00460 increased the expression of serine/threonine kinase AKT2 via sponging miR-612. Rescue experiments indicated that LINC00460 could promote HNSCC progression partially through inhibition of miR-612. Subcutaneous xenotransplanted tumor model confirmed that interference of LINC00460 suppressed in vivo tumorigenic ability of HNSCC via down-regulation of AKT2. In conclusion, our findings clarified the biologic significance of LINC00460/miR-612/AKT2 axis in HNSCC progression and provided novel evidence that LINC00460 may be a new potential therapeutic target for HNSCC.
Collapse
Affiliation(s)
- Xiaoxing Xie
- Department of Otolaryngology, Tongde Hospital of Zhejiang ProvinceHangzhou 310012, Zhejiang, China
| | - Gaoyun Xiong
- Department of Otolaryngology, Tongde Hospital of Zhejiang ProvinceHangzhou 310012, Zhejiang, China
| | - Qingliang Wang
- Department of Otolaryngology, Tongde Hospital of Zhejiang ProvinceHangzhou 310012, Zhejiang, China
| | - Yanping Ge
- Department of Otolaryngology, Tongde Hospital of Zhejiang ProvinceHangzhou 310012, Zhejiang, China
| | - Xiaoying Cui
- Department of Anesthesiology, Zhejiang Cancer HospialHangzhou 310022, Zhejiang, China
| |
Collapse
|
39
|
Abstract
Introduction: Epigenetic alterations and aberrantly expressed long noncoding RNAs (lncRNAs) are pervasive in colorectal cancer (CRC) tumorigenesis. DNA methylation could control lncRNA expression and play an important role in tumor initiation and progression. However, the DNA methylation that regulates lncRNAs in CRC remains poorly characterized. Materials and Methods: In our research, we integrated dysregulated expression and methylation of lncRNAs between colorectal tumor and adjacent mucosa tissues from The Cancer Genome Atlas database. With the use of this strategy, LINC00460, the most frequently epigenetically activated, was identified and further verified in the Cancer Cell Line Encyclopedia and Gene Expression Omnibus databases. Results: Patients with high expression of LINC00460 are prone to metastasis and are associated with poor prognosis. Abnormally expressed LINC00460 could be used as an independent prognostic risk factor for disease-free survival. Knockdown of LINC00460 promotes colon cancer cell invasion and migration in vitro. Conclusion: In summary, our results suggest that DNA methylation-regulated LINC00460 could promote CRC metastasis and serve as a potential therapeutic target for CRC.
Collapse
Affiliation(s)
- Hui Zhang
- Research Center for Clinical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Ya Lu
- Research Center for Clinical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Jianzhong Wu
- Research Center for Clinical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Jifeng Feng
- Research Center for Clinical Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| |
Collapse
|
40
|
Jiang Y, Cao W, Wu K, Qin X, Wang X, Li Y, Yu B, Zhang Z, Wang X, Yan M, Xu Q, Zhang J, Chen W. LncRNA LINC00460 promotes EMT in head and neck squamous cell carcinoma by facilitating peroxiredoxin-1 into the nucleus. J Exp Clin Cancer Res 2019; 38:365. [PMID: 31429766 PMCID: PMC6700841 DOI: 10.1186/s13046-019-1364-z] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/06/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The lncRNA LINC00460 plays crucial roles in several epithelial cancers, although its mechanisms of action differ greatly in different cellular contexts. In this study, we aimed to determine the potential clinical applications of LINC00460 and elucidate the mechanisms by which LINC00460 affects the development and progression of head and neck squamous cell carcinoma (HNSCC). METHODS The biological functions of LINC00460 were assessed in several epithelial cancer cell lines. The subcellular localization of LINC00460 was evaluated by cell nuclear/cytoplasmic fractionation and fluorescence in situ hybridization. RNA pull-down assays, LS-MS/MS analysis, and RNA and chromatin immunoprecipitation assays were performed to identify the molecular mechanism by which LINC00460 promotes HNSCC progression. The clinical pathological features of LINC00460 and PRDX1 were evaluated in HNSCC tissues and paired adjacent normal tissues. RESULTS LINC00460 enhanced HNSCC cell proliferation and metastasis in vitro and in vivo and induced epithelial-mesenchymal transition (EMT). LINC00460 primarily localized within the cytoplasm of HNSCC cells, physically interacted with PRDX1 and facilitated PRDX1 entry into the nucleus. PRDX1 promoted the transcription of LINC00460, forming a positive feedback loop. In addition, PRDX1 also promoted the transcription of EMT-related genes (such as ZEB1, ZEB2 and VIM) through enrichment on gene promoters in the nucleus. LINC00460 effectively induced HNSCC cell EMT in a PRDX1-dependent manner, and PRDX1 mainly mediated the EMT-promoting effect of LINC00460. High levels of LINC00460 and PRDX1 expression were positively associated with lymph metastasis, pathological differentiation and tumor size in HNSCC patients. CONCLUSIONS LINC00460 promoted EMT in HNSCC cells by facilitating PRDX1 entry into the nucleus. LINC00460 and PRDX1 are promising candidate prognostic predictors and potential targets for cancer therapy for HNSCC.
Collapse
Affiliation(s)
- Yingying Jiang
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- 0000 0004 1790 6079grid.268079.2Department of Dentistry, Affiliated Hospital, Weifang Medical University, Weifang, 261031 China
| | - Wei Cao
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
| | - Kun Wu
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Xing Qin
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Xiaoning Wang
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Yan Li
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Binbin Yu
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Zhen Zhang
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Xu Wang
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Ming Yan
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Qin Xu
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Jianjun Zhang
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| | - Wantao Chen
- 0000 0004 0368 8293grid.16821.3cDepartment of Oral and Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011 China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, 200011 People’s Republic of China
| |
Collapse
|
41
|
Tu J, Zhao Z, Xu M, Chen M, Weng Q, Ji J. LINC00460 promotes hepatocellular carcinoma development through sponging miR-485-5p to up-regulate PAK1. Biomed Pharmacother 2019; 118:109213. [PMID: 31376654 DOI: 10.1016/j.biopha.2019.109213] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 12/18/2022] Open
Abstract
LncRNAs can function as significant regulators of tumor development. However, their roles in hepatocellular carcinoma (HCC) remain poorly investigated. LINC00460 has been identified in several cancers, which can act as an oncogene. In this study, we observed that LINC00460 was significantly up-regulated in HCC cells, which implied that LINC00460 was involved in HCC development. Then, LINC00460 was silenced in Hep3B and Huh-7 cells and we found that knockdown of LINC00460 greatly inhibited HCC cell proliferation. In addition, HCC cell apoptosis was induced and meanwhile, cell cycle progression was blocked by down-regulation of LINC00460 in vitro. Furthermore, we proved that Hep3B and Huh-7 cell migration and invasion capacity was repressed by decrease of LINC00460. Recently, a growing number of studies have indicated the correlation between lncRNAs and microRNAs. Currently, we displayed that miR-485-5p was greatly decreased in HCC cells and LINC00460 could sponge miR-485-5p to regulate HCC progression. The binding association between LINC00460 and miR-485-5p was confirmed using dual-luciferase reporter assay, RNA pulled down and RIP assay in our research. Subsequently, PAK1 was predicted as a downstream target of miR-485-5p and we demonstrated that miR-485-5p suppressed PAK1 levels in vitro. Finally, in vivo experiments were conducted to validate that knockdown of LINC00460 repressed HCC development through modulating miR-485-5p to increase PAK1. Taken these together, we indicated that LINC00460 promoted HCC progression through sponging miR-485-5p and up-regulating PAK1.
Collapse
|
42
|
Zhao H, Wang Y, Ren X. Nicotine promotes the development of non-small cell lung cancer through activating LINC00460 and PI3K/Akt signaling. Biosci Rep 2019; 39:BSR20182443. [PMID: 31123168 PMCID: PMC6554215 DOI: 10.1042/bsr20182443] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 05/08/2019] [Accepted: 05/21/2019] [Indexed: 12/24/2022] Open
Abstract
Objective: Nicotine, the main ingredient in tobacco, is identified to facilitate tumorigenesis and accelerate metastasis in tumor. Studies in recent years have reported that long intergenic non-protein coding RNA 460 (LINC00460) is strongly associated with lung cancer poor prognosis and nicotine dependence. Nonetheless, it is unclear whether nicotine promotes the development of lung cancer through activation of LINC00460. Methods: We determined that LINC00460 expression in lung cancer tissues and the prognosis in patients with non-small cell lung carcinoma (NSCLC) using Gene Expression Profiling Interactive Analysis (GEPIA) website and The Cancer Genome Atlas (TCGA) database. Through in vitro experiments, we studied the effects of nicotine on LINC00460 in NSCLC cells lines using Cell Counting Kit-8 (CCK-8), transwell test, flow cytometry, quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and Western blot assays. Results: We identified the significant up-regulated expression level of LINC00460 in NSCLC tissues and cell lines, especially, the negative correlation of LINC00460 expression level with overall survival (OS). In in vitro experiments, LINC00460 was overexpressed in NSCLC cell lines under nicotine stimulation. Nicotine could relieve the effect of LINC00460 knockdown on NSCLC cell proliferation, migration and apoptosis. The same influence was observed on PI3K/Akt signaling pathway. Conclusions: In summary, this is the first time to examine the potential roles of LINC00460 in lung cancer cell proliferation, migration and apoptosis induced by nicotine. This may help to develop novel therapeutic strategies for the prevention and treatment of metastatic tumors from cigarette smoke-caused lung cancer by blocking the nicotine-activated LINC00460 pathway.
Collapse
Affiliation(s)
- Hongying Zhao
- Oncology Department, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P.R. China
| | - Yu Wang
- Department of Gerneral Surgery, Xuzhou Cancer Hospital, Xuzhou, 221000 Jiangsu, P.R. China
| | - Xiubao Ren
- Oncology Department, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P.R. China
| |
Collapse
|
43
|
Feng L, Rao M, Zhou Y, Zhang Y, Zhu Y. Long noncoding RNA 00460 ( LINC00460) promotes glioma progression by negatively regulating miR-320a. J Cell Biochem 2019; 120:9556-9563. [PMID: 30825219 PMCID: PMC6593862 DOI: 10.1002/jcb.28232] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/10/2018] [Accepted: 11/15/2018] [Indexed: 12/19/2022]
Abstract
Objective Long noncoding RNA 00460 (LINC00460) has been reported to contribute to tumorigenesis in multiple types of human malignancies. However, the biological role and the underlying molecular mechanism of LINC00460 in glioma remain unclear. The aim of this study was to investigate the clinical value, the biological function, and the potential mechanism of LINC00460 in glioma. Methods The expression level of LINC00460 in glioma tissues and cell lines was examined by quantitative real‐time polymerase chain reaction (qRT‐PCR). Cell Counting Kit‐8, flow cemetery, wound healing, and transwell invasion assays were used to explore the effect of LINC00460 on glioma cell proliferation, apoptosis, migration, and invasion. qRT‐PCR and reporter assays were used to further verify the regulatory mechanism of LINC00460 in glioma progression. Results LINC00460 expression was upregulated in glioma tissues and cell lines compared with non–tumor brain samples and astrocyte cell line (NHA), respectively. Moreover, increased LINC00460 expression was closely associated with glioma tumor grade. Loss‐of‐function assays revealed that knockdown of LINC00460 significantly inhibited glioma cell proliferation, induced cell apoptosis, and suppressed migration and invasion. The mechanistic assays disclosed that LINC00460 binded to miR‐320a in a sequence‐specific manner and regulated its expression. Moreover, miR‐320 inhibition partially attenuated LINC00460 knockdown‐mediated suppressive effects on glioma cell proliferation, migration, and invasion. Conclusion These findings suggested that LINC00460 might function as an oncogenic lncRNA in glioma development and could be explored as a potential therapeutic target for glioma.
Collapse
Affiliation(s)
- Li Feng
- Department of Radiotherapy, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Min Rao
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Yinan Zhou
- Department of the Gastrointestinal Surgery, The People's Hospital of Jilin Province, Changchun, China
| | - Yunxin Zhang
- Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China
| | - Yonggang Zhu
- Department of Radiotherapy, China-Japan Union Hospital of Jilin University, Changchun, China
| |
Collapse
|
44
|
Abstract
Background lncRNAs are widely involved in multiple malignancies including colorectal cancer (CRC). The expression and function of long intergenic non-protein coding RNA 460 (LINC00460) in CRC remains obscure. Methods In the present study, quantitative real-time PCR assays were applied to detect the expression changes of LINC00460 and microRNA-939-5p (miR-939-5p) in CRC tissue specimens and cell lines. Western blot assays were used to measure the changes of LIMK2. Bioinformatics analysis, luciferase assays, and RNA pull-down assays were applied to determine the targeting binding effect between LINC00460 and miR-939-5p as well as LIMK2 and miR-939-5p. Transwell assays were used to evaluate the metastatic ability changes of CRC line HT29 and LOVO cells. Results We found that LINC00460 was upregulated and closely correlated to clinicopathological features and poor prognosis of patients with CRC. Functionally, we elucidated that LINC00460 promoted metastasis in CRC cell lines HT29 and LOVO. Further, we showed that LIMK2 was a downstream effector in the LINC00460-induced promotion of metastasis in CRC cells HT29 and LOVO. Through online bioinformatics analysis, LINC00460 and LIMK2 were demonstrated to share similar microRNA response elements for miR-939-5p. Then, LINC00460 and LIMK2 were verified to be the targets of miR-939-5p via a luciferase assay and an RNA pull-down assay. Also, miR-939-5p was showed to suppress metastasis by targeting of LIMK2. Lastly, we revealed that LINC00460 promoted LIMK2-mediated metastasis via miR-939-5p sponging in CRC cells HT29 and LOVO. Conclusion The findings of this study showed that LINC00460 works as an oncogene in CRC and promoted CRC cell metastasis via regulation of miR-939-3p/LIMK2 axial. The present study might provide a new target in treating CRC.
Collapse
Affiliation(s)
- Yueyan Zhang
- Department of Pathology, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, People's Republic of China,
| | - Xingchi Liu
- Department of Thoracic Surgery, General Hospital of Shenyang Military Command, Shenyang, People's Republic of China
| | - Qiang Li
- Department of Pathology, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, People's Republic of China,
| | - Yong Zhang
- Department of Pathology, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, People's Republic of China,
| |
Collapse
|
45
|
Ma G, Zhu J, Liu F, Yang Y. Long Noncoding RNA LINC00460 Promotes the Gefitinib Resistance of Nonsmall Cell Lung Cancer Through Epidermal Growth Factor Receptor by Sponging miR-769-5p. DNA Cell Biol 2019; 38:176-183. [PMID: 30601026 PMCID: PMC6383575 DOI: 10.1089/dna.2018.4462] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The vital roles of long noncoding RNAs (lncRNAs) in the nonsmall cell lung cancer (NSCLC) tumorigenesis are increasingly important. This work aims to investigate the role of lncRNA LINC00460 in the gefitinib resistance of NSCLC cells and discover its relevant mechanism. Our finding reveals that the expression of lncRNA LINC00460 is upregulated in the gefitinib-resistant NSCLC tissue and cells, and closely correlated with advanced tumor stage and clinical poor prognosis outcome. Gain and loss functional assays are performed in gefitinib-resistant NSCLC cells (A549/GR), stating that LINC00460 facilitates the 50% inhibitive concentration of gefitinib for NSCLC cells, multidrug-resistant-related proteins (P-gp, MRP1, and BCRP), as well as the invasion. In vivo, LINC00460 silencing represses the tumor growth. Bioinformatics prediction tools and luciferase analysis confirm that the upregulated LINC00460 sponged miR-769-5p in NSCLC cells; moreover, epidermal growth factor receptor (EGFR) is identified as a direct target gene of miR-769-5p. Verification experiments confirm that the restoration of EGFR could weaken the sensibility of NSCLC cells toward the gefitinib. In conclusion, our result demonstrates that LINC00460 plays a pivotal role in gefitinib resistance of NSCLC cells by targeting EGFR through sponging miR-769-5p. This finding might serve as a therapeutic target for NSCLC.
Collapse
Affiliation(s)
- Guodong Ma
- 1 Department of Chest Surgery, Nanjing Chest Hospital, Nanjing, China
| | - Jiping Zhu
- 2 Department of Pneumology, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Feng Liu
- 1 Department of Chest Surgery, Nanjing Chest Hospital, Nanjing, China
| | - Yan Yang
- 3 Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
46
|
Liu X, Wen J, Wang H, Wang Y. RETRACTED: Long non-coding RNA LINC00460 promotes epithelial ovarian cancer progression by regulating microRNA-338-3p. Biomed Pharmacother 2018; 108:1022-1028. [PMID: 30372802 DOI: 10.1016/j.biopha.2018.09.103] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/03/2018] [Accepted: 09/18/2018] [Indexed: 01/09/2023] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the Editor-in-Chief and the authors. Panels from Figures 2C and 2D appear similar to panels from Figures 4D and 4F of the article published by Hai-Xiang Yu, Xiao-Long Wang, Le-Ning Zhang, Ji Zhang and Wei Zhao in Biomedicine & Pharmacotherapy 109 (2019) 751-761 https://doi.org/10.1016/j.biopha.2018.09.110. Panels from Figure 3B appear similar to panels from Figure 3D of the article previously published by Yuanyuan Meng, Qi Li, Lianwei Li and Rong Ma in Biological Chemistry 399 (2017) 93-100 https://doi.org/10.1515/hsz-2017-0199. The ‘GAPDH’ Western Blots from Figure 3C appear similar to the ‘AKT’ Western Blots from Figure 6 of the article previously published by Lan Wu, Bo Shi, Kexin Huang and Guoyu Fan in the Oncology Reports 34 (2015) 2797-2805 https://doi.org/10.3892/or.2015.4251 and the ‘GAPDH’ Western Blots from Figure 4D of the article previously published by Tao Peng, Lixiang Zhou, Ling Zuo and Yongxin Luan in the Oncology Reports 35 (2016) 1057-1064 https://doi.org/10.3892/or.2015.4406.
Collapse
Affiliation(s)
- Xiaoxia Liu
- Department of Gynecology, The First Hospital of Jilin University, Changchun 130021, China
| | - Jihong Wen
- Department of Gynecology, The First Hospital of Jilin University, Changchun 130021, China
| | - Haijiao Wang
- Department of Gynecology, The First Hospital of Jilin University, Changchun 130021, China
| | - Yanli Wang
- Department of Gynecology, The First Hospital of Jilin University, Changchun 130021, China.
| |
Collapse
|
47
|
Wang F, Liang S, Liu X, Han L, Wang J, Du Q. LINC00460 modulates KDM2A to promote cell proliferation and migration by targeting miR-342-3p in gastric cancer. Onco Targets Ther 2018; 11:6383-6394. [PMID: 30323616 PMCID: PMC6174301 DOI: 10.2147/ott.s169307] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Increasing evidence has shown that long non-coding RNAs (lncRNAs) play important roles in the occurrence and development of human cancers. LINC00460, a novel tumor-related lncRNA, has been reported to be involved in several types of human malignancies. However, the role of LINC00460 in gastric cancer (GC) is still unclear. The present study aimed at exploring the biological role of LINC00460 in GC and illuminating the potential molecular mechanisms. Methods In this study, qRT-PCR, western blotting, MTT assay, and Transwell invasion assay were used to conduct relevant experimental analysis. Results Here, we found that LINC00460 was highly expressed in GC tissues and cell lines. Moreover, LINC00460 overexpression was found to promote GC cell proliferation, migration and invasion, whereas LINC00460 down-regulation significantly inhibited these processes. Notably, we confirmed that LINC00460 could up-regulate KDM2A expression by competitively binding to miR-342-3p in GC cells. Furthermore, the suppressive effects of LINC00460 down-regulation on GC cell proliferation, migration and invasion were partially reversed by a miR-342-3p inhibitor. Conclusion In summary, our findings provide evidence for LINC00460 as a potential therapeutic target in GC.
Collapse
Affiliation(s)
- Fang Wang
- Department of Oncology, Affiliated Hospital of Jining Medical College, Jining 272029, China,
| | - Shaobo Liang
- Department of Gastroenterology, Central Hospital of Shanxian County, Heze, 274399, China
| | - Xiaowei Liu
- Department of Oncology, Affiliated Hospital of Jining Medical College, Jining 272029, China,
| | - Lei Han
- Department of Oncology, Affiliated Hospital of Jining Medical College, Jining 272029, China,
| | - Junye Wang
- Department of Oncology, Affiliated Hospital of Jining Medical College, Jining 272029, China,
| | - Qin Du
- Department of Oncology, Affiliated Hospital of Jining Medical College, Jining 272029, China,
| |
Collapse
|
48
|
Wang X, Mo FM, Bo H, Xiao L, Chen GY, Zeng PW, Huang YN, Lei Z, Yuan WJ, Chen ZH. Upregulated Expression of Long Non-Coding RNA, LINC00460, Suppresses Proliferation of Colorectal Cancer. J Cancer 2018; 9:2834-2843. [PMID: 30123352 PMCID: PMC6096368 DOI: 10.7150/jca.26046] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/30/2018] [Indexed: 12/23/2022] Open
Abstract
Through bioinformatics analysis, a novel lncRNA, LINC00460, was implicated in the development of multiple cancers. However, the precise expression pattern, clinical significance and biological function of LINC00460 in colorectal cancer (CRC) remain unknown. Network databases were used to investigate the correlation between LINC00460 and CRC. In situ hybridization was performed to verify the precise expression pattern and clinical significance of LINC00460 in a CRC tissue microarray, which included 92 pairs of CRC and adjacent normal tissues. The effect of LINC00460 on proliferation was evaluated by MTT, colony formation assays and flow cytometry employing SW620 and HCT116 cell lines. Cell migration and matrigel invasion assays were performed to investigate whether LINC00460 is involved in the metastasis of CRC. The expression of LINC00460 was significantly upregulated in CRC tissues and cells, associated with early stage CRC and low disease-free survival. The downregulated of LINC00460 expression increased cell proliferation by regulating the cell cycles of SW620 and HCT116 cells. LINC00460 knockdown did not affect cell migration or invasion in vitro. These findings suggest that LINC00460 may be an interesting target for the development of CRC.
Collapse
Affiliation(s)
- Xin Wang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Fong-Ming Mo
- Key Laboratory of Nanobiological Technology of National Health and Family Planning Commission, Xiangya Hospital , Central South University, Changsha, China
| | - Hao Bo
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medicine, Central South University, Changsha, China
| | - Lei Xiao
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Guan-Yang Chen
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Peng-Wei Zeng
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yan-Ning Huang
- Key Laboratory of Nanobiological Technology of National Health and Family Planning Commission, Xiangya Hospital , Central South University, Changsha, China
| | - Zhuo Lei
- Xiangya Stomatological Hospital & School of Stomatology, Central South University, Changsha, China
| | - Wei-Jie Yuan
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zi-Hua Chen
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
49
|
Lian Y, Yan C, Xu H, Yang J, Yu Y, Zhou J, Shi Y, Ren J, Ji G, Wang K. A Novel lncRNA, LINC00460, Affects Cell Proliferation and Apoptosis by Regulating KLF2 and CUL4A Expression in Colorectal Cancer. Mol Ther Nucleic Acids 2018; 12:684-97. [PMID: 30092404 DOI: 10.1016/j.omtn.2018.06.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 12/18/2022]
Abstract
Emerging evidence has proven that long noncoding RNAs (lncRNAs) play important roles in human colorectal cancer (CRC) biology, although few lncRNAs have been characterized in CRC. Therefore, the functional significance of lncRNAs in the malignant progression of CRC still needs to be further explored. In this study, through analyzing TCGA RNA sequencing data and other publicly available microarray data, we found a novel lncRNA, LINC00460, whose expression was significantly upregulated in CRC tissues compared to adjacent normal tissues. Consistently, real-time qPCR results also verified that LINC00460 was overexpressed in CRC tissues and cells. Furthermore, high LINC00460 expression levels in CRC specimens were correlated with larger tumor size, advanced tumor stage, lymph node metastasis and shorter overall survival. In vitro and in vivo assays of LINC00460 alterations revealed a complex integrated phenotype affecting cell growth and apoptosis. Mechanistically, LINC00460 repressed Krüppel-like factor 2 (KLF2) transcription by binding to enhancer of zeste homolog 2 (EZH2). LINC00460 also functioned as a molecular sponge for miR-149-5p, antagonizing its ability to repress cullin 4A (CUL4A) protein translation. Taken together, our findings support a model in which the LINC00460/EZH2/KLF2 and LINC00460/miR-149-5p/CUL4A crosstalk serve as critical effectors in CRC tumorigenesis and progression, suggesting new therapeutic directions in CRC.
Collapse
|
50
|
Huang GW, Xue YJ, Wu ZY, Xu XE, Wu JY, Cao HH, Zhu Y, He JZ, Li CQ, Li EM, Xu LY. A three-lncRNA signature predicts overall survival and disease-free survival in patients with esophageal squamous cell carcinoma. BMC Cancer 2018; 18:147. [PMID: 29409459 PMCID: PMC5801805 DOI: 10.1186/s12885-018-4058-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 01/28/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Increasing evidence shows that dysregulated long non-coding RNAs (lncRNAs) can serve as potential biomarkers for cancer prognosis. However, lncRNA signatures, as potential prognostic biomarkers for esophageal squamous cell carcinoma (ESCC), have been seldom reported. METHODS Based on our previous transcriptome RNA sequencing analysis from 15 paired ESCC tissues and adjacent normal tissues, we selected 10 lncRNAs with high score rank and characterized the expression of those lncRNAs, by qRT-PCR, in 138 ESCC and paired adjacent normal samples. These 138 patients were divided randomly into training (n = 77) and test (n = 59) groups. A prognostic signature of lncRNAs was identified in the training group and validated in the test group and in an independent cohort (n = 119). Multivariable Cox regression analysis evaluated the independence of the signature in overall survival (OS) and disease-free survival (DFS) prediction. GO and KEGG pathway analysis, combined with cell transwell and proliferation assays, are applied to explore the function of the three lncRNAs. RESULTS A novel three-lncRNA signature, comprised of RP11-366H4.1.1 (ENSG00000248370), LINC00460 (ENSG00000233532) and AC093850.2 (ENSG00000230838), was identified. The signature classified patients into high-risk and low-risk groups with different overall survival (OS) and disease-free survival (DFS). For the training group, median OS: 23.1 months vs. 39.1 months, P < 0.001; median DFS: 15.2 months vs. 33.3 months, P < 0.001. For the test group, median OS: 23 months vs. 59 months, P < 0.001; median DFS: 16.4 months vs. 50.8 months, P < 0.001. For the independent cohort, median OS: 22.4 months vs. 60.4 months, P < 0.001). The signature indicates that patients in the high-risk group show poor OS and DFS, whereas patients with a low-risk group show significantly better outcome. The independence of the signature was validated by multivariable Cox regression analysis. GO and KEGG pathway analysis for 588 protein-coding genes-associated with the three lncRNAs indicated that the three lncRNAs were involved in tumorigenesis. In vitro assays further demonstrated that the three lncRNAs promoted the migration and proliferation of ESCC cells. CONCLUSIONS The three-lncRNA signature is a novel and potential predictor of OS and DFS for patients with ESCC.
Collapse
Affiliation(s)
- Guo-Wei Huang
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Yu-Jie Xue
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Zhi-Yong Wu
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- Departments of Oncology Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, 515041, Guangdong, People's Republic of China
| | - Xiu-E Xu
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Jian-Yi Wu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Hui-Hui Cao
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Ying Zhu
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Jian-Zhong He
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
| | - Chun-Quan Li
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, 163319, Heilongjiang, People's Republic of China
| | - En-Min Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China.
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China.
| | - Li-Yan Xu
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong, 515041, China.
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, Guangdong, People's Republic of China.
| |
Collapse
|