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Lin J, Zhai S, Zou S, Xu Z, Zhang J, Jiang L, Deng X, Chen H, Peng C, Zhang J, Shen B. Positive feedback between lncRNA FLVCR1-AS1 and KLF10 may inhibit pancreatic cancer progression via the PTEN/AKT pathway. J Exp Clin Cancer Res 2021; 40:316. [PMID: 34635142 PMCID: PMC8507233 DOI: 10.1186/s13046-021-02097-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 09/07/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND FLVCR1-AS1 is a key regulator of cancer progression. However, the biological functions and underlying molecular mechanisms of pancreatic cancer (PC) remain unknown. METHODS FLVCR1-AS1 expression levels in 77 PC tissues and matched non-tumor tissues were analyzed by qRT-PCR. Moreover, the role of FLVCR1-AS1 in PC cell proliferation, cell cycle, and migration was verified via functional in vitro and in vivo experiments. Further, the potential competitive endogenous RNA (ceRNA) network between FLVCR1-AS1 and KLF10, as well as FLVCR1-AS1 transcription levels, were investigated. RESULTS FLVCR1-AS1 expression was low in both PC tissues and PC cell lines, and FLVCR1-AS1 downregulation was associated with a worse prognosis in patients with PC. Functional experiments demonstrated that FLVCR1-AS1 overexpression significantly suppressed PC cell proliferation, cell cycle, and migration both in vitro and in vivo. Mechanistic investigations revealed that FLVCR1-AS1 acts as a ceRNA to sequester miR-513c-5p or miR-514b-5p from the sponging KLF10 mRNA, thereby relieving their suppressive effects on KLF10 expression. Additionally, FLVCR1-AS1 was shown to be a direct transcriptional target of KLF10. CONCLUSIONS Our research suggests that FLVCR1-AS1 plays a tumor-suppressive role in PC by inhibiting proliferation, cell cycle, and migration through a positive feedback loop with KLF10, thereby providing a novel therapeutic strategy for PC treatment.
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Affiliation(s)
- Jiewei Lin
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shuyu Zhai
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Siyi Zou
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiwei Xu
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Zhang
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lingxi Jiang
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaxing Deng
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Chen
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chenghong Peng
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiaqiang Zhang
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Baiyong Shen
- Department of General Surgery, Pancreatic Disease Center, Research Institute of Pancreatic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
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Hua Q, Wang D, Zhao L, Hong Z, Ni K, Shi Y, Liu Z, Mi B. AL355338 acts as an oncogenic lncRNA by interacting with protein ENO1 to regulate EGFR/AKT pathway in NSCLC. Cancer Cell Int 2021; 21:525. [PMID: 34627260 PMCID: PMC8502354 DOI: 10.1186/s12935-021-02232-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 09/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is a malignancy with considerable morbidity and mortality. Abnormal metabolism is a hallmark of cancer; however, the mechanism of glycolysis regulation in NSCLC progression is not completely understood. Recent studies suggest that some dysregulated long non-coding RNAs (lncRNAs) play important roles in tumor metabolic reprogramming. METHODS To identify glycolysis-associated-lncRNAs in NSCLC, we compared RNA-sequencing results between high 18F-fluorodeoxyglucose (FDG)-uptake NSCLC tissues and paired paratumor tissues. The transcript abundance of AL355338 in 80 pairs of clinical samples was evaluated by quantitative real-time PCR assay and fluorescence in situ hybridization. The biological role of AL355338 on NSCLC cells were evaluated by functional experiments in vitro and in vivo. Moreover, RNA pull-down, mass spectrometry and RNA immunoprecipitation (RIP) assays were used to identify the protein interacted with AL355338. Co-immunoprecipitation, in situ proximity ligation assays and western blotting were applied to define the potential downstream pathways of AL355338. RESULTS AL355338 was an upregulated glycolysis-associated lncRNA in NSCLC. Functional assays revealed that AL355338 was critical for promoting aerobic glycolysis and NSCLC progression. Mechanistic investigations showed that AL355338 directly bound with alpha-enolase (ENO1) and enhanced the protein's stability by modulating its degradation and ubiquitination. A positive correlation was observed between AL355338 and ENO1 in NSCLC, and ENO1 was subsequently confirmed to be responsible for the oncogenic role of AL355338. Furthermore, AL355338 was capable of modulating ENO1/EGFR complex interaction and further activating EGFR-AKT signaling. CONCLUSIONS This study indicates that AL355338 confers an aggressive phenotype to NSCLC, and targeting it might be an effective therapeutic strategy.
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Affiliation(s)
- Qian Hua
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Dongliang Wang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200032, China
| | - Lin Zhao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Zhihui Hong
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Kairu Ni
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Yizhen Shi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Zengli Liu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.
| | - Baoming Mi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.
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103
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Sun M, Chen Y, Liu X, Cui Y. LncRNACASC9 promotes proliferation, metastasis, and cell cycle inovarian carcinoma cells through cyclinG1/TP53/MMP7 signaling. Bioengineered 2021; 12:8006-8019. [PMID: 34595994 PMCID: PMC8806755 DOI: 10.1080/21655979.2021.1981795] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Ovarian cancer (OC) brings about serious physical and psychological burden for female patients. LncRNA CASC9 has been reported to be intimately linked with the occurrence and development of several tumors. However, the biological role of lncRNA CASC9 in OC still lacks sufficient evidence. The expressions of CASC9 and miR-488-3p in OC cell lines and xenograft mice were detected by qRT-PCR assay. Cell Counting Kit-8 (CCK-8) assay was used to assess cell inhibition rate and cell proliferation in OVCAR-3 and OVCAR-3/DDP cells. Wound healing assay and transwell assay were performed to evaluate the capacity of migration and invasion, respectively. In addition, cell apoptosis was measured by TUNEL assay and cell cycle was assessed by flow cytometric analysis. Moreover, western blotting was carried out to detect the cyclinG1 (CCNG1)/TP53/MMP7 signaling and apoptosis-related proteins. Furthermore, luciferase reporter assay was performed to verify the combination of CASC9 with CCNG1 and miR-488-3p. The results of our study revealed that CASC9 expression was upregulated while miR-488-3p and CCNG1 expression was downregulated in OC cells with significant higher TP53 and MMP7 protein levels compared with normal ovarian surface epithelial cells. Additionally, luciferase reporter assay confirmed CASC9 bond to miR-488-3p/CCNG1. CASC9 silencing inhibited cell proliferation, migration, and invasion whereas promoted cell inhibition rate and apoptosis in vitro and in vivo. However, CASC9 overexpression showed the opposite effects. In summary, LncRNA CASC9 played a regulative role in ovarian carcinoma by cyclinG1/TP53/MMP7 signaling via binding to miR-488-3p in vivo and in vitro.
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Affiliation(s)
- Min Sun
- Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi'an P.R.China
| | - Yanan Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing P.R.China
| | - Xiaobei Liu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing P.R.China
| | - Yajie Cui
- Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi'an P.R.China
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Zhao M, Yang F, Sang C, Yan C, Wang Z. BGL3 inhibits papillary thyroid carcinoma progression via regulating PTEN stability. J Endocrinol Invest 2021; 44:2165-2174. [PMID: 33543443 DOI: 10.1007/s40618-021-01519-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/23/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE BGL3, a novel long non-coding RNA (lncRNA) that plays a crucial role in several human malignancies. However, the clinical significance and biological function of BGL3 in papillary thyroid carcinoma (PTC) have not been explored. Herein, we aimed to investigate the role of BGL3 in human PTC. METHODS A total of 85 pairs of PTC and normal tissues were collected for clinicopathological analysis. Expression of BGL3 was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The effects of BGL3 on PTC cells ware determined by CCK-8, colony formation, EdU and wound healing assays. The molecular mechanism underlying BGL3 was tested by ChIP, Co-IP, RNA pull-down and luciferase reporter assays. In vivo experiments were conducted using xenografts in nude mice. RESULTS BGL3 was significantly decreased in PTC tissues compared to adjacent normal thyroid tissues, and it was transcriptionally repressed by oncogene Myc. Low BGL3 is positively related to larger tumor size, lymph node metastasis, later TNM stage and poor prognosis. Overexpression of BGL3 inhibited PTC cell proliferation and migration in vitro, and reduced tumor size and lung metastasis nodules in vivo. BGL3 was mainly located in the cytoplasm, in which interacted with PTEN and recruited OTUD3, enhancing the de-ubiquitination effect of OTUD3 on PTEN, resulting in increasing PTEN protein stability and inactivating carcinogenic PI3K/AKT signaling. CONCLUSIONS Our data underscore the critical tumor-inhibiting role of BGL3 in PTC via post-translational regulation of PTEN protein stability, which may serve as a novel therapeutic target and prognostic biomarker in human PTC.
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Affiliation(s)
- M Zhao
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - F Yang
- Department of Orthopedics, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Sang
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Yan
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - Z Wang
- Department of General Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.
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Zhu Z, Shi Y, Gong X, Li J, Zhang M. LINC00511 Knockdown Suppresses Resistance to Cisplatin in Lung Adenocarcinoma by Interacting with miR-182-3p and BIRC5. Mol Biotechnol 2021; 64:252-262. [PMID: 34595724 DOI: 10.1007/s12033-021-00400-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/14/2021] [Indexed: 11/27/2022]
Abstract
We studied the role of long intergenic non-protein coding RNA 00,511 (LINC00511) in lung adenocarcinoma (LUAD), with a specific focus on acquired chemoresistance. LINC00511 expression was higher in responders to cisplatin (DDP, another name for cisplantin) than non-responders, in A549/DDP cells than in parental A549 cells and normal human bronchial epithelial cells (16HBE). LINC00511 knockdown decreased the half maximal inhibitory concentration (IC50) value, suppressed A549/DDP cell viability, but induced apoptosis. LINC00511 bound with miR-182 and increased the expression of baculoviral inhibitor of apoptosis protein (IAP) repeat containing 5 (BIRC5). BIRC5 knockdown mimicked the effects of LINC00511 knockdown on the IC50 value, A549/DDP cell viability, and apoptosis. BIRC5 overexpression negated the effects of LINC00511 knockdown on A549/DDP cells. In vivo, LINC00511 knockdown attenuated the tumorigenesis of A549/DDP cells after DDP injection. These results provide a novel LINC00511/miR-182/BIRC5 paradigm to explain the mechanism of acquired DDP resistance.
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Affiliation(s)
- Zhongcheng Zhu
- Department of Radiotherapy, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, 061000, Hebei, China.
| | - Yufeng Shi
- Department of Radiotherapy, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Xiaoyi Gong
- Return Visit Office, Cangzhou Central Hospital, Cangzhou, 061000, Hebei, China
| | - Jing Li
- Return Visit Office, Cangzhou Central Hospital, Cangzhou, 061000, Hebei, China
| | - Mingyun Zhang
- Department of Radiotherapy, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
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106
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Tian W, Zhang Y, Liu H, Jin H, Sun T. LINC01123 potentially correlates with radioresistance in glioma through the miR-151a/CENPB axis. Neuropathology 2021; 42:3-15. [PMID: 34519373 DOI: 10.1111/neup.12764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/17/2021] [Accepted: 05/24/2021] [Indexed: 11/29/2022]
Abstract
Radiotherapy represents the most effective nonsurgical therapy, whereas acquired radioresistance remains a major challenge in glioma treatment. Deregulation of long noncoding RNAs (lncRNAs) is frequently involved in tumorigenesis. This study investigates the role of LINC01123 in radioresistance in glioma with molecules involved. LINC01123 was identified as the most upregulated gene in a glioma gene expression dataset GSE103227. LINC01123 was highly expressed in the radioresistant glioma tissues radioresistant glioma U251 (U251R) cells. Downregulation of LINC01123 reduced cell proliferation and colony formation abilities, as well as resistance to apoptosis of the U251R cells after 4 Gy X-ray irradiation. The micro(mi)RNA-151a gene (miR-151a) was a poorly expressed miRNA in glioma, and it was a target of LINC01123. The centromere protein B gene (CENPB) mRNA was a direct target of miR-151a and demonstrated a positive correlation with LINC01123 in glioma tissues and cells. Further inhibition of miR-151a or overexpression of CENPB restored radioresistance of glioma cells. In addition, silencing of LINC01123 suppressed growth of xenograft tumors formed by U251R cells in nude mice. To conclude, the present study demonstrates that LINC01123 serves as a sponge for miR-151a and upregulates CENPB expression to increase the radioresistance of glioma cells in vitro and in vivo.
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Affiliation(s)
- Weicheng Tian
- Department of Radiotherapy, Jilin Cancer Hospital, Changchun, China
| | - Yingying Zhang
- Institution for Drug Clinical Trial, Jilin Cancer Hospital, Changchun, China
| | - Hairui Liu
- Department of Abdominal, Jilin Cancer Hospital, Changchun, China
| | - Haiguo Jin
- Department of Radiotherapy, Jilin Cancer Hospital, Changchun, China
| | - Tao Sun
- Department of Radiotherapy, Jilin Cancer Hospital, Changchun, China
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107
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Li C, Li Y, Zhang Y, Yan H, Huang C. Knockdown of LINC01123 inhibits cell viability, migration and invasion via miR-361-3p/TSPAN1 targeting in cervical cancer. Exp Ther Med 2021; 22:1184. [PMID: 34475974 DOI: 10.3892/etm.2021.10618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 03/29/2021] [Indexed: 12/27/2022] Open
Abstract
Cervical cancer (CC) is a type of gynecological malignancy that poses a significant threat to females. The aim of the present study was to examine the role of long intergenic non-protein coding RNA 1123 (LINC01123) and its underlying molecular mechanism in the development of CC. mRNA expression levels of LINC01123 and microRNA (miR)-361-3p in CC tissue samples and cell lines were evaluated using reverse transcription-quantitative PCR. Cell viability, migration and invasion were detected using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, wound healing and Transwell assays. Moreover, a xenograft tumor model was established for elucidating the influence of LINC01123 knockdown on tumor growth in vivo. A dual-luciferase reporter assay was used to confirm the association between LINC01123 and miR-361-3p, and miR-361-3p and tetraspanin 1 (TSPAN1). Western blot analysis was used to determine TSPAN1 protein expression. LINC01123 expression was upregulated and miR-361-3p expression was reduced in CC tissue samples and cell lines. Knockdown of LINC01123 inhibited cell viability, migration and invasion in vitro, and suppressed tumor growth in vivo. Furthermore, LINC01123 targeted miR-361-3p and negatively regulated miR-361-3p expression. Overexpression of miR-361-3p inhibited cell viability, migration and invasion in HeLa and CaSki cells. Additionally, miR-361-3p targeted TSPAN1 and negatively regulated TSPAN1 expression. Inhibition of miR-361-3p and overexpression of TSPAN1 reversed the effect of LINC01123 knockdown on cell proliferation, migration and invasion in HeLa cells. Knockdown of LINC01123 inhibited cell proliferation, migration and invasion via miR-361-3p/TSPAN1 regulation in CC, which may present an effective target for treatment of CC.
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Affiliation(s)
- Cui Li
- Department of Gynecology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
| | - Yujuan Li
- Department of Gynecology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
| | - Yuying Zhang
- Department of Gynecology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
| | - Hua Yan
- Department of Gynecology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
| | - Chengxiang Huang
- Department of Gynecology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
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Curcumin Antagonizes Glucose Fluctuation-Induced Renal Injury by Inhibiting Aerobic Glycolysis via the miR-489/LDHA Pathway. Mediators Inflamm 2021; 2021:6104529. [PMID: 34456629 PMCID: PMC8387199 DOI: 10.1155/2021/6104529] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/09/2021] [Accepted: 07/22/2021] [Indexed: 12/12/2022] Open
Abstract
It has been considered that glucose fluctuation (GF) plays a role in renal injury and is related to diabetic nephropathy (DN) development. But the mechanism is still unclear. Aerobic glycolysis has become a topical issue in DN in recent years. There is an internal connection between GF, aerobic glycolysis, and DN. Curcumin (Cur) is a principal curcuminoid of turmeric and possesses specific protective properties in kidney functions. Cur also participates in the regulation of aerobic glycolysis switch. In this study, we first measured the levels of aerobic glycolysis and evaluated Cur's inhibitory ability in a cell model of HEK-293 under the condition of oscillating high glucose. The results indicated that GF exacerbated inflammation injury, oxidative stress, and apoptosis in HEK-293 cell, while Cur alleviated this cytotoxicity induced by GF. We found that GF increased aerobic glycolysis in HEK-293 cells and Cur presented a dose-dependent weakening effect to this exacerbation. Next, we built a panel of 17 miRNAs and 8 lncRNAs that were previously reported to mediate the Warburg effect. Our RT-qPCR results indicated that GF reduced the miR-489 content in the HEK-293 cell model and Cur could prevent this downregulation. Then, we planned to explore the character of miR-489 in Cur-triggered attenuation of the Warburg effect under GF condition. Our findings presented that Cur prevented GF-triggered aerobic glycolysis by upregulating miR-489 in HEK-293 cells. Next, we choose the miR-489/LDHA axis for further investigation. We confirmed that Cur prevented GF-triggered aerobic glycolysis via the miR-489/LDHA axis in HEK-293 cells. In conclusion, this study presented that Cur prevented GF-triggered renal injury by restraining aerobic glycolysis via the miR-489/LDHA axis in the HEK-293 cell model.
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109
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Xu F, Hua Q, Zhang A, Di Z, Wang Y, Zhao L, Yang H, Liu J, Huang G. LncRNA AC020978 facilitates non-small cell lung cancer progression by interacting with malate dehydrogenase 2 and activating the AKT pathway. Cancer Sci 2021; 112:4501-4514. [PMID: 34424600 PMCID: PMC8586664 DOI: 10.1111/cas.15116] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 02/06/2023] Open
Abstract
Long non–coding RNA AC020978 (lncRNA AC020978) is an oncogenic regulator of non–small cell lung cancer (NSCLC). However, the function of AC020978 in regulating NSCLC metastasis and the potential molecular mechanism remains largely unknown. In this study, we evaluated the expression levels of AC020978 in a series of NSCLC tissues using FISH assays and found that higher AC020978 expression levels were closely associated with metastasis and unfavorable prognosis. Functional studies showed that AC020978 promoted NSCLC migration and invasion both in vitro and in vivo. Further investigation demonstrated that AC020978 interacted with malate dehydrogenase 2 (MDH2) and maintained MDH2 stability. Knockdown of MDH2 weakened the facilitating effect on cell metastasis and 2‐hydroxyglutarate (2‐HG) metabolism in AC020978‐overexpressed NSCLC cells. RNA sequencing, bioinformatic analysis, and western blotting revealed that AC020978 was associated with the AKT signaling pathway. Taken together, our findings revealed that AC020978 might serve as a prognostic biomarker and activate the AKT pathway by stabilizing MDH2, leading to metastasis and progression of NSCLC.
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Affiliation(s)
- Fei Xu
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Qian Hua
- Department of Nuclear Medicine, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Aimi Zhang
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Zhang Di
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yining Wang
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Li Zhao
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Hao Yang
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Gang Huang
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, China
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Weng G, Gu M, Zhang Y, Zhao G, Gu Y. LINC01123 promotes cell proliferation and migration via regulating miR-1277-5p/KLF5 axis in ox-LDL-induced vascular smooth muscle cells. J Mol Histol 2021; 52:943-953. [PMID: 34403009 DOI: 10.1007/s10735-021-10010-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 08/09/2021] [Indexed: 11/25/2022]
Abstract
The pathophysiological mechanism of carotid atherosclerosis (CAS) involves endothelial cell dysfunction, vascular smooth muscle cells (VSMCs), and macrophage activation, which ultimately leads to fibrosis of the vessel wall. lncRNA works weightily in the formation of CAS, but the function and mechanism of lncRNA LINC01123 in stable plaque formation are still equivocal. We collected blood samples from 35 CAS patients as well as 33 healthy volunteers. VSMCs treated with oxidized low-density lipoprotein (ox-LDL) were utilized as the CAS cell models. We applied qRT-PCR for detecting LINC01123, miR-1277-5p and KLF5 mRNA expression, CCK-8 method and BrdU test for determining cell proliferation, Transwell test for measuring cell migration, as well as Western blot for assaying KLF5 protein expression. Dual-luciferase reporter experiment was adopted for assessing the interaction between LINC01123 and miR-1277-5p, as well as KLF5 and miR-1277-5p. LINC01123 and KLF5 expression were dramatically up-regulated, while miR-1277-5p expression was down-regulated in CAS patients and ox-LDL-induced CAS cell models. Overexpressed LINC01123 notedly promoted VSMCs migration and proliferation. LINC01123 knockdown repressed cell proliferation and migration. Also, LINC01123 targeted miR-1277-5p and down-regulated its expression, while miR-1277-5p could negatively regulate KLF5 expression. LINC01123 is highly expressed in CAS patients, and promotes cell proliferation and migration via regulating miR-1277-5p/KLF5 axis in ox-LDL-induced VSMCs. It might be involved in the fibrous plaque formation.
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Affiliation(s)
- Guohu Weng
- Department of Encephalopathy, Hainan Provincial Hospital of Chinese Medicine, 47# Heping North Road, Haikou, 570203, Hainan, People's Republic of China
| | - Minhua Gu
- Department of Cardiology, Hainan Provincial Hospital of Chinese Medicine, Haikou, 570203, Hainan, People's Republic of China
| | - Yifan Zhang
- Department of Encephalopathy, Hainan Provincial Hospital of Chinese Medicine, 47# Heping North Road, Haikou, 570203, Hainan, People's Republic of China
| | - Guangfeng Zhao
- Department of Encephalopathy, Hainan Provincial Hospital of Chinese Medicine, 47# Heping North Road, Haikou, 570203, Hainan, People's Republic of China
| | - Yong Gu
- Department of Encephalopathy, Hainan Provincial Hospital of Chinese Medicine, 47# Heping North Road, Haikou, 570203, Hainan, People's Republic of China.
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Wang Y, Lou N, Zuo M, Zhu F, He Y, Cheng Z, Wang X. STAT3-induced ZBED3-AS1 promotes the malignant phenotypes of melanoma cells by activating PI3K/AKT signaling pathway. RNA Biol 2021; 18:355-368. [PMID: 34241580 DOI: 10.1080/15476286.2021.1950463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Melanoma is considered as the most frequent primary malignancy occurring in skin. Accumulating studies have suggested that long non-coding RNAs (lncRNAs) play critical parts in multiple cancers. In this study, we explored the molecular mechanism of ZBED3 antisense RNA 1 (ZBED3-AS1) in melanoma. We observed that ZBED3-AS1 expression was remarkably up-regulated in melanoma tissues, and high ZBED3-AS1 level was linked to unsatisfactory survival of melanoma patients. Then, we discovered that ZBED3-AS1 was overexpressed in melanoma cells compared with human epidermal melanocytes. In addition, loss-of-function assays verified that ZBED3-AS1 knockdown restrained cell proliferation, migration, epithelial-mesenchymal transition (EMT), and stemness in melanoma. In addition, signal transducer and activator of transcription 3 (STAT3), which also showed tumour-facilitating functions in melanoma, was confirmed as a transcriptional activator of ZBED3-AS1. Moreover, ZBED3-AS1 enhanced the expression of AT-rich interaction domain 4B (ARID4B) through sequestering miR-381-3p. Importantly, we further confirmed that ZBED3-AS1 promoted the malignant progression of melanoma by regulating miR-381-3p/ARID4B axis to activate the phosphatidylinositol 3-kinase/AKT serine/threonine kinase (PI3K/AKT) signalling pathway. In a word, our research might provide a novel therapeutic target for melanoma.
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Affiliation(s)
- Yang Wang
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Nan Lou
- Department of Joint Replacement Surgery, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Min Zuo
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Fuqiang Zhu
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Yan He
- Department of Pathology, Longgang Center Hospital of Shenzhen, Guangdong, China
| | - Zhiqiang Cheng
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
| | - Xiaomei Wang
- Department of Pathology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
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The Role of Non-Coding RNAs in the Regulation of the Proto-Oncogene MYC in Different Types of Cancer. Biomedicines 2021; 9:biomedicines9080921. [PMID: 34440124 PMCID: PMC8389562 DOI: 10.3390/biomedicines9080921] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/25/2021] [Accepted: 07/28/2021] [Indexed: 01/17/2023] Open
Abstract
Alterations in the expression level of the MYC gene are often found in the cells of various malignant tumors. Overexpressed MYC has been shown to stimulate the main processes of oncogenesis: uncontrolled growth, unlimited cell divisions, avoidance of apoptosis and immune response, changes in cellular metabolism, genomic instability, metastasis, and angiogenesis. Thus, controlling the expression of MYC is considered as an approach for targeted cancer treatment. Since c-Myc is also a crucial regulator of many cellular processes in healthy cells, it is necessary to find ways for selective regulation of MYC expression in tumor cells. Many recent studies have demonstrated that non-coding RNAs play an important role in the regulation of the transcription and translation of this gene and some RNAs directly interact with the c-Myc protein, affecting its stability. In this review, we summarize current data on the regulation of MYC by various non-coding RNAs that can potentially be targeted in specific tumor types.
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Liu YC, Lin P, Zhao YJ, Wu LY, Wu YQ, Peng JB, He Y, Yang H. Pan-cancer analysis of clinical significance and associated molecular features of glycolysis. Bioengineered 2021; 12:4233-4246. [PMID: 34304708 PMCID: PMC8806880 DOI: 10.1080/21655979.2021.1955510] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Tumor glycolysis is a major promoter of carcinogenesis and cancer progression. Given its complex mechanisms and interactions, comprehensive analysis is needed to reveal its clinical significance and molecular features. On the basis of a well-established glycolysis gene expression signature, we quantified 8633 patients with different cancer types from the Cancer Genome Atlas (TCGA) and evaluated their prognostic associations. High tumor glycolytic activity correlated with inferior overall survival in the pan-cancer patients (hazard ratio: 1.70, 95% confidence interval: 1.20–2.40, P = 0.003). The prognostic value of glycolysis correlated with the molecular subtypes and was stable regardless of clinical parameters. The prognostic significance of glycolysis was validated using three independent datasets. In addition, genome, transcriptome, and proteome profiles were utilized to characterize the distinctive molecular features associated with glycolysis. Mechanistically, glycolysis fulfilled the fundamental needs of tumor proliferation in multiple ways. Exploration of the relationships between glycolysis and tumor-infiltrating immune cells showed that glycolysis enabled the immune evasion of tumor cells. Mammalian target of rapamycin (mTOR) inhibitors and dopamine receptor antagonists can effectively reverse the glycolytic status of cancers. Overall, our study provides an in-depth molecular understanding of tumor glycolysis and may have practical implications for clinical cancer therapy.
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Affiliation(s)
- Yi-Chen Liu
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Peng Lin
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yu-Jia Zhao
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Lin-Yong Wu
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yu-Quan Wu
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jin-Bo Peng
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yun He
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hong Yang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Qin H, Wang C, Hua Y. LINC01123 is associated with prognosis of oral squamous cell carcinoma and involved in tumor progression by sponging miR-34a-5p. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 133:50-59. [PMID: 34511356 DOI: 10.1016/j.oooo.2021.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/22/2021] [Accepted: 07/13/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Oral squamous cell carcinoma (OSCC) is a malignant tumor. This study aimed to investigate the role of a long noncoding RNA (lncRNA), LINC01123, in OSCC prognosis and progression and to explore the underlying mechanisms. STUDY DESIGN OSCC tissues were collected from 102 patients, and 4 OSCC cell lines were analyzed. The expression levels of LINC01123 and miR-34a-5p were estimated using quantitative real-time polymerase chain reaction (qRT-PCR). Cell counting kit-8 (CCK-8) and Transwell assays were used to assess the proliferation, migration, and invasion of OSCC cells. Kaplan-Meier survival analysis was used to analyze the prognostic value of LINC01123 in OSCC. RESULTS The analysis results showed that LINC01123 was overexpressed in OSCC tumor tissues; also, the prognosis of patients with OSCC with high LINC01123 expression levels was poor. The knockdown of LINC01123 inhibited the proliferation, migration, and invasion of OCSS cells. MiR-34a-5p was a target of LINC01123, and its inhibitor could reverse the effect of silenced LINC01123 on the progression of OSCC. CONCLUSIONS Highly expressed LINC01123 was associated with poor prognosis of OSCC and regulated OSCC cell proliferation, invasion, and migration by sponging miR-34a-5p. Therefore, the LINC01123/miR-34a-5p axis may provide new ideas for the prognosis and treatment of OSCC.
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Affiliation(s)
- Huan Qin
- Department of Stomatology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, 261031, China
| | - Changlei Wang
- Department of Stomatology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, 261031, China
| | - Yingjie Hua
- Department of Stomatology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, 261031, China..
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Qian X, Yang J, Qiu Q, Li X, Jiang C, Li J, Dong L, Ying K, Lu B, Chen E, Liu P, Lu Y. LCAT3, a novel m6A-regulated long non-coding RNA, plays an oncogenic role in lung cancer via binding with FUBP1 to activate c-MYC. J Hematol Oncol 2021; 14:112. [PMID: 34274028 PMCID: PMC8285886 DOI: 10.1186/s13045-021-01123-0] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 07/02/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are important epigenetic regulators, which play critical roles in diverse physiological and pathological processes. However, the regulatory mechanism of lncRNAs in lung carcinogenesis remains elusive. Here, we characterized a novel oncogenic lncRNA, designated as Lung Cancer Associated Transcript 3 (LCAT3). METHODS We predicted and validated LCAT3 by analyzing RNA-sequencing (RNA-seq) data of lung cancer tissues from TCGA. Methylated RNA immunoprecipitation was performed to assess m6A modification on LCAT3. The LCAT3-FUBP1-MYC axis was assessed by dual-luciferase reporter, RNA immunoprecipitation and Chromatin immunoprecipitation assays. Signaling pathways altered by LCAT3 knockdown were identified using RNA-seq. Furthermore, the mechanism of LCAT3 was investigated using loss-of-function and gain-of-function assays in vivo and in vitro. RESULTS LCAT3 was found to be up-regulated in lung adenocarcinomas (LUAD), and its over-expression was associated with the poor prognosis of LUAD patients. LCAT3 upregulation is attributable to N6-methyladenosine (m6A) modification mediated by methyltransferase like 3 (METTL3), leading to LCAT3 stabilization. Biologically, loss-of-function assays revealed that LCAT3 knockdown significantly suppressed lung cancer cell proliferation, migration and invasion in vitro, and inhibited tumor growth and metastasis in vivo. LCAT3 knockdown induced cell cycle arrest at the G1 phase. Mechanistically, LCAT3 recruited Far Upstream Element Binding Protein 1 (FUBP1) to the MYC far-upstream element (FUSE) sequence, thereby activating MYC transcription to promote proliferation, survival, invasion and metastasis of lung cancer cells. CONCLUSIONS Taken together, we identified and characterized LCAT3 as a novel oncogenic lncRNA in the lung, and validated the LCAT3-FUBP1-MYC axis as a potential therapeutic target for LUAD.
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Affiliation(s)
- Xinyi Qian
- Center for Uterine Cancer Diagnosis and Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Juze Yang
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
| | - Qiongzi Qiu
- Center for Uterine Cancer Diagnosis and Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Xufan Li
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
| | - Chengxi Jiang
- Chemical Biology Research Center, College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Jia Li
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
| | - Liangliang Dong
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
| | - Kejing Ying
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
- Cancer Center, Zhejiang University, Hangzhou, 310013, Zhejiang, China
| | - Bingjian Lu
- Center for Uterine Cancer Diagnosis and Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Enguo Chen
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
- Cancer Center, Zhejiang University, Hangzhou, 310013, Zhejiang, China
| | - Pengyuan Liu
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, 310013, Zhejiang, China.
- Department of Physiology and Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, 53226, WI, USA.
| | - Yan Lu
- Center for Uterine Cancer Diagnosis and Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, 310013, Zhejiang, China.
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Huang P, Zhu S, Liang X, Zhang Q, Luo X, Liu C, Song L. Regulatory Mechanisms of LncRNAs in Cancer Glycolysis: Facts and Perspectives. Cancer Manag Res 2021; 13:5317-5336. [PMID: 34262341 PMCID: PMC8275123 DOI: 10.2147/cmar.s314502] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/19/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer cells exhibit distinct metabolic characteristics that employ glycolysis to provide energy and intermediary metabolites. This aberrant metabolic phenotype favors cancer progression. LncRNAs are transcripts longer than 200 nucleotides that do not encode proteins. LncRNAs contribute to cancer progression and therapeutic resistance and affect aerobic glycolysis via multiple mechanisms, including modulating glycolytic transporters and enzymes. Further, dysregulated signaling pathways are vital for glycolysis. In this review, we highlight regulatory mechanisms for lncRNAs in aerobic glycolysis that provide novel insights into cancer development. Moreover, a comprehensive understanding of the regulatory mechanisms of lncRNAs in aerobic glycolysis can provide new strategies for clinical cancer management.
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Affiliation(s)
- Peng Huang
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Shaomi Zhu
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Xin Liang
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Qinxiu Zhang
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Xiaohong Luo
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Chi Liu
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Linjiang Song
- Reproductive & Women-Children Hospital, School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
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Wang Y, Tang Y, Li J, Wang D, Li W. Human sperm-associated antigen 4 as a potential prognostic biomarker of lung squamous cell carcinoma. J Int Med Res 2021; 49:3000605211032807. [PMID: 34311595 PMCID: PMC8320573 DOI: 10.1177/03000605211032807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/23/2021] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE Lung cancer (LC) is one of the most prevalent malignant tumors worldwide. As a subtype of LC, lung squamous cell carcinoma (LUSC) has a 5-year survival rate of less than 15%. In this study, we aimed to evaluate the prognostic value of a glycolysis-related gene signature in LUSC patients. METHODS We obtained RNA-Seq data from The Cancer Genome Atlas (TCGA) database. Prognosis-related genes were screened out by Gene Set Enrichment Analysis (GSEA) and Cox proportional regression models. Quantitative reverse transcription polymerase chain reaction (RT-qPCR) was used to verify the mRNA expression levels in relevant tissues. RESULTS We found that sperm-associated antigen 4 (SPAG4) overexpression was an independent risk factor for overall survival (OS) in LUSC. Patients with high-risk scores had higher mortality rates than those with low-risk scores. Moreover, by using RT-qPCR, we validated that SPAG4 mRNA was overexpressed in LUSC tissue samples compared with their paired para-cancerous histological normal tissues. CONCLUSIONS Analysis of aberrantly overexpressed SPAG4 may provide a further useful approach to complement existing methods and predict prognosis in LUSC patients.
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Affiliation(s)
- Yongheng Wang
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Department of Surgical Oncology, The Third Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yao Tang
- Department of General Surgery, Xi'an No. 3 Hospital, Xi'an, Shaanxi, China
| | - Jianhui Li
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Department of Surgical Oncology, The Third Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Danfang Wang
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Department of Surgical Oncology, The Affiliated Hospital of Xi’an Medical University, Xi'an Medical University, Xi'an, Shaanxi, China
| | - Wenhan Li
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
- Department of Surgical Oncology, The Third Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Li S, Lin L. Long noncoding RNA MCF2L-AS1 promotes the cancer stem cell-like traits in non-small cell lung cancer cells through regulating miR-873-5p level. ENVIRONMENTAL TOXICOLOGY 2021; 36:1457-1465. [PMID: 33783940 DOI: 10.1002/tox.23142] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/09/2021] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
The roles of long noncoding RNA (lncRNA) MCF2L-AS1 have been identified in colorectal cancer, however, its roles in lung cancer progression have never been revealed. Here, we found that lncRNA MCF2L-AS1 was highly expressed in lung cancer tissues and cells, especially in non-small cell lung cancer (NSCLC). Functional experiments showed that MCF2L-AS1 knockdown suppressed the cancer stem cell (CSC)-like traits of NSCLC cells through qRT-PCR, western blot, tumor-sphere formation, and ALDH activity detection. Additionally, bioinformatic assay combined with RNA pull down and luciferase reporter analysis confirmed that MCF2L-AS1 downregulated miR-873-5p level. Furthermore, miR-873-5p expression exhibited a lower level in lung cancer tissues and cells, and a negative correlation with MCF2L-AS1 expression in lung cancer tissues. Moreover, miR-873-5p inhibition partially reversed the suppression of MCF2L-AS1 on the CSC-like traits on NSCLC cells. Thus, this work identifies a novel MCF2L-AS1/miR-873-5p regulatory axis responsible for the CSC-like traits of NSCLC cells.
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Affiliation(s)
- Shouguo Li
- Department of Cancer Radiotherapy, Zhongshan Hospital Xiamen University, Xiamen, Fujian, China
| | - Liancheng Lin
- The Third Departments of Thoracic Tumor, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian, China
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Nuclear scaffold protein p54 nrb/NONO facilitates the hypoxia-enhanced progression of hepatocellular carcinoma. Oncogene 2021; 40:4167-4183. [PMID: 34079086 PMCID: PMC8211563 DOI: 10.1038/s41388-021-01848-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/28/2021] [Accepted: 05/17/2021] [Indexed: 12/14/2022]
Abstract
Hypoxia and related oxidative stress are closely related to the development and treatment of hepatocellular carcinoma (HCC). However, the mechanism mediated by hypoxia in HCC has not yet been elucidated. Here, we found multifunction scaffold protein p54nrb/NONO exerted pleiotropic effects to regulate hypoxia transcription signals, thereby enhancing the progression of liver cancer. Extensive analysis of clinical data demonstrated that NONO was significantly upregulated and represented as a poor prognostic indicator of HCC. The crucial role of NONO in driving angiogenesis and glycolysis, two well-known cancer phenotypes mediated by hypoxia, was examined in vitro an in vivo. Mechanistically, NONO interacted with and stabilized both HIF-1 and HIF-2 complexes thus activating the transcription of hypoxia-induced genes. Besides, NONO bound pre-mRNA and subsequent mRNA of these genes to facilitate them splicing and mRNA stability, respectively. Thus, NONO knockout seriously disrupted the expression of a cluster of HIF-1/2 targets and impeded hypoxia-enhanced progression in HCC. In conclusion, NONO functioned as a multipurpose scaffold that interacted with HIF-1/2 complex and their downstream transcripts to facilitate the expression of hypoxia-induced genes, allowing malignant proliferation, indicating that NONO might be a potential therapeutic target for HCC.
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Xie W, Wang Y, Zhang Y, Xiang Y, Wu N, Wu L, Li C, Cai T, Ma X, Yu Z, Bai L, Li Y. Single-nucleotide polymorphism rs4142441 and MYC co-modulated long non-coding RNA OSER1-AS1 suppresses non-small cell lung cancer by sequestering ELAVL1. Cancer Sci 2021; 112:2272-2286. [PMID: 33113263 PMCID: PMC8177763 DOI: 10.1111/cas.14713] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/20/2020] [Accepted: 10/24/2020] [Indexed: 12/12/2022] Open
Abstract
Single‐nucleotide polymorphisms (SNP) and long non‐coding RNAs (lncRNAs) have been involved in the process of lung cancer. Following clues given by lung cancer risk‐associated SNP, we aimed to find novel functional lncRNAs as candidate targets in lung cancer. We identified a lncRNA Oxidative Stress Responsive Serine Rich 1 Antisense RNA 1 (OSER1‐AS1) through a lung cancer risk‐associated SNP rs4142441. OSER1‐AS1 was down‐regulated in tumor tissue and its low expression was significantly associated with poor overall survival among non‐smokers in non‐small cell lung cancer (NSCLC) patients. Gain‐ and loss‐of‐function studies showed that OSER1‐AS1 acted as a tumor suppressor by inhibiting lung cancer cell growth, migration and invasion in vitro. Xenograft tumor assays and a metastasis mouse model confirmed that OSER1‐AS1 suppressed tumor growth and metastasis in vivo. The promoter of OSER1‐AS1 was repressed by MYC, and the 3′‐end of OSER1‐AS1 was competitively targeted by microRNA hsa‐miR‐17‐5p and RNA‐binding protein ELAVL1. Our results indicated that OSER1‐AS1 exerted tumor‐suppressive functions by acting as an ELAVL1 decoy to keep it away from its target mRNAs. Our findings characterized OSER1‐AS1 as a new tumor‐suppressive lncRNA in NSCLC, suggesting that OSER1‐AS1 may be suitable as a potential biomarker for prognosis, and a potential target for treatment.
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Affiliation(s)
- Weijia Xie
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Youhao Wang
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Yao Zhang
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Ying Xiang
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Na Wu
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Long Wu
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Chengying Li
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Tongjian Cai
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Xiangyu Ma
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
| | - Zubin Yu
- Department of Thoracic Surgery, Xinqiao Hospital, Army Medical University, Third Military Medical University), Chongqing, China
| | - Li Bai
- Department of Respiratory Disease, Xinqiao Hospital, Army Medical University, Third Military Medical University), Chongqing, China
| | - Yafei Li
- Department of Epidemiology, College of Preventive Medicine, Army Medical University, Third Military Medical University), Chongqing, China
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Luo Y, Wang X, Li L, Wang Q, Hu Y, He C, Zhang M. Bioinformatics Analysis Reveals Centromere Protein K Can Serve as Potential Prognostic Biomarker and Therapeutic Target for Non-small Cell Lung Cancer. Curr Bioinform 2021. [DOI: 10.2174/1574893615999200728100730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Non-small cell lung carcinoma (NSCLC) accounts for 80% of all lung
cancer cases, which have been a leading cause of morbidity and mortality worldwide. Previous
studies demonstrated that centromere proteins were dysregulated and involved in regulating the
tumorigenesis and development of human cancers. However, the roles of centromere protein
family members in NSCLC remained to be further elucidated.
Objective:
The present study aimed to explore the roles of centromere protein family members in NSCLC.
Method:
GEPIA (http://gepia.cancer-pku.cn/) was used to analyze the target’s expression between normal and human cancers. We
explored the prognostic value of centromere proteins in NSCLC using the Kaplan–Meier plotter (http://kmplot.com). The
protein-protein interaction among centromere proteins were determined using GeneMANIA (http://www.genemania.org).
TISIDB (http://cis.hku.hk/TISIDB) database was used to detect the relationship between centromere proteins expression
and clinical stages, lymphocytes, immunomodulators and chemokines in NSCLC. The DAVID database
(https://david.ncifcrf.gov) was used to detect potential roles of CENPK using its co-expressing genes
Results:
The present study for the first time showed that centromere protein family members including CENPA, CENPF, CENPH,
CENPI, CENPK, CENPM, CENPN, CENPO, CENPQ, CENPU were dysregulated and correlated to the poor prognosis of
patients with LUAD. CENPK showed the greatest correlation with the prognosis of patients with NSCLC. We found that
CENPK was significantly highly expressed in LUAD samples and overexpression of CENPK was remarkably correlated
to the shorter OS and DFS on patients with different stage NSCLC. Of note, this study for the first time showed that
CENPK was significantly correlated to the lymphocytes and immunomodulators using the TISIDB database
Conclusion:
In summary, CENPK can serve as a novel biomarker for the diagnosis of patients
with NSCLC.
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Affiliation(s)
- Yimin Luo
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
| | - Xihua Wang
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
| | - Li Li
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
| | - Qun Wang
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
| | - Yue Hu
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
| | - Can He
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
| | - Mei Zhang
- Department of Respiratory Medicine, Zhongda Hospital Affiliated to Southeast University, School of Medicine, Southeast University, Nanjing, China
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Wu Y, Xiao H, Pi J, Zhang H, Pan A, Pu Y, Liang Z, Shen J, Du J, Huang T. LncRNA lnc_13814 promotes the cells apoptosis in granulosa cells of duck by acting as apla-miR-145-4 sponge. Cell Cycle 2021; 20:927-942. [PMID: 33843432 DOI: 10.1080/15384101.2021.1911102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Follicle development is a vital factor which determines the reproductive performance of poultry. Long noncoding RNAs (lncRNAs) have been reported to maintain animal reproductive function and play key roles in ovarian development and hormone secretion. But the regulatory mechanism of lncRNAs in duck follicle development has seldom been reported. In this study, to better explore the molecular mechanism of follicle development in ducks, the follicular lncRNA was sequenced and analyzed. A total of 9,551 lncRNAs were predicted in the duck follicles. Four hundred and forty-five lncRNAs were differentially expressed between the white follicles and yellow follicles. The results of our studies showed that lnc_13814 promoted cell apoptosis in duck GCs. Furthermore, the bioinformatics analysis results demonstrated that lnc_13814 was involved in a lncRNA-miRNA-mRNA coexpression network and it was observed to sponge two follicle-related miRNAs by a luciferase activity assay. Moreover, we found that overexpression of lnc_13814 significantly increased DNA damage inducible transcript 3 (DDIT3) expression and downregulated GCs apoptosis. Finally, we found that lnc_13814 directly binds to and inhibits apla-mir-145-4; then, lnc_13814 increases the expression of DDIT3 and up-regulates GCs apoptosis. Taken together, our findings demonstrate that lncRNAs have potential effects on duck ovarian follicles and lncRNAs may represent a new approach to understand follicular development.
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Affiliation(s)
- Yan Wu
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Hubei Academy of Agricultural Science, Wuhan, China
| | - Hongwei Xiao
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Jinsong Pi
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Hao Zhang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Ailuan Pan
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Yuejin Pu
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Zhenhua Liang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Jie Shen
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Jinping Du
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
| | - Tao Huang
- Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Science, Wuhan, China
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Lv Y, Dong K, Gao H. Long non-coding RNA TDRG1 facilitates cell proliferation, migration and invasion in breast cancer via targeting miR-214-5p/CLIC4 axis. Cancer Biol Ther 2021; 22:248-256. [PMID: 33822672 DOI: 10.1080/15384047.2020.1863120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Accumulated studies have revealed the critical role of long non-coding RNAs (lncRNAs) in the carcinogenesis and progression of various cancers. LncRNA TDRG1 has been reported to exhibit oncogenic potential in some cancers. However, its underlying mechanism regulating breast cancer (BC) remains obscure. QRT-PCR was used to measure the relative expression of mRNAs, and western blot was used to detect protein expression levels. CCK8 and CFSE assays were utilized to testify cell proliferation ability. Flow cytometry assay was used for cell apoptosis ability investigation. Transwell and tube formation assays were implemented to test cell migrating and invasive abilities. Relevant mechanism experiments were implemented to determine the molecular mechanism. TDRG1 was remarkably overexpressed in BC cell lines. TDRG1 knockdown suppressed cell proliferation, migration and invasion, but enhanced BC cell apoptosis. Mechanistically, TDRG1 acted as a miR-214-5p sponge to up-regulate CLIC4 expression. MiR-214-5p inhibition or CLIC4 overexpression could revive the tumor-suppressing effects induced by TDRG1 knockdown. TDRG1 promoted cell proliferation, migration, and invasion in BC, suggesting that TDRG1 could promisingly be a therapeutic target for BC.
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Affiliation(s)
- Yanrong Lv
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Ke Dong
- Department of General Surgery, Qilu Hospital of Shandong University (Qingdao Branch), Qingdao, 266000, Shandong, China
| | - Haidong Gao
- Department of General Surgery, Qilu Hospital of Shandong University (Qingdao Branch), Qingdao, 266000, Shandong, China
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Yang N, Liang Y, Zhu T, Long Y, Chen Z, Zhang X, Jiang L. Epigenetic silencing of microRNA-199a-5p promotes the proliferation of non-small cell lung cancer cells by increasing AKAP1 expression. Oncol Lett 2021; 21:434. [PMID: 33868472 PMCID: PMC8045157 DOI: 10.3892/ol.2021.12695] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
MicroRNA (miR)-199a-5p expression is downregulated in a variety of malignancies, including non-small cell lung cancer (NSCLC), and its low expression is associated with a poor prognosis. However, to the best of our knowledge, the mechanism underlying miR-199a-5p downregulation in NSCLC and its target effectors remain to be elucidated. The present study revealed the downregulation of miR-199a-5p expression in NSCLC tissues and cell lines compared with in para-carcinoma tissues and a lung epithelial cell line. Further experiments indicated that the methylation levels of the miR-199a promoter were markedly higher in NSCLC tissues compared with in para-carcinoma tissues. The DNA methyltransferase inhibitor 5-Aza-2′-deoxycytidine markedly increased the expression levels of miR-199a-5p in NSCLC cells. Furthermore, it was identified that miR-199a-5p mimics transfection decreased the expression levels of A-kinase anchoring protein 1 (AKAP1) at both the mRNA and protein levels by targeting the 3′ untranslated region of AKAP1 mRNA. The in vitro experiments demonstrated that miR-199a-5p overexpression inhibited the proliferation and tumorigenicity of NSCLC cells, whereas overexpression of AKAP1 partially recovered the malignant phenotypes, suggesting that AKAP1 may be a downstream effector targeted by miR-199a-5p. Collectively, the present findings indicated that miR-199a-5p may be a novel regulator of AKAP1, and that miR-199a-5p may be a potential tumor suppressor in NSCLC.
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Affiliation(s)
- Nengli Yang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yafeng Liang
- Department of Pediatric Intensive Care Unit, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Tianqi Zhu
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yanxiao Long
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhe Chen
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xuezheng Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Liuming Jiang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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125
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LINC01123 facilitates proliferation, invasion and chemoresistance of colon cancer cells. Biosci Rep 2021; 40:225863. [PMID: 32700743 PMCID: PMC7414518 DOI: 10.1042/bsr20194062] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 12/24/2022] Open
Abstract
Colon cancer is one of the major causes of cancer-related deaths worldwide. Long non-coding RNA (lncRNA) LINC01123 has been suggested to act as an oncogene in non-small cell lung cancer and a prognostic signature in head and neck squamous cell carcinoma. However, its role in colon cancer remains obscure. From TCGA database, LINC01123 was observed to be up-regulated in colon adenocarcinoma (COAD). Subsequently, the up-regulated LINC01123 was also detected in colon cancer cells. Functionally, LINC01123 could enhance cell proliferation, migration, invasion and angiogenesis. Moreover, the chemoresistance of colon cancer cells was verified to be promoted by LINC01123. Afterward, LINC01123 was found to bind with Ago2 and miR-34c-5p. Besides, miR-34c-5p was confirmed to inhibit the cellular process and chemoresistance of colon cancer cells. Then, VEGFA was disclosed to coexist with LINC01123 and miR-34c-5p in RNA-induced silencing complex. And TCGA database suggested that its expression was correlated with different stages of COAD. Moreover, it was uncovered that VEGFA could bind with miR-34c-5p and its expression positively correlated with LINC01123 expression. Finally, LINC01123 was proofed to regulate colon cancer progression and cells chemoresistance via VEGFA. In conclusion, LINC01123/miR-34c-5p/VEGFA axis promotes colon cancer malignancy and cells chemoresistance.
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126
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Liu R, Wang X, Shen Y, He A. Long non-coding RNA-based glycolysis-targeted cancer therapy: feasibility, progression and limitations. Mol Biol Rep 2021; 48:2713-2727. [PMID: 33704659 DOI: 10.1007/s11033-021-06247-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 02/20/2021] [Indexed: 12/18/2022]
Abstract
Metabolism reprogramming is one of the hallmarks of cancer cells, especially glucose metabolism, to promote their proliferation, metastasis and drug resistance. Cancer cells tend to depend on glycolysis for glucose utilization rather than oxidative phosphorylation, which is called the Warburg effect. Genome instability of oncogenes and tumor-inhibiting factors is the culprits for this anomalous glycolytic fueling, which results in dysregulating metabolism-related enzymes and metabolic signaling pathways. It has been extensively demonstrated that protein-coding genes are involved in this process; therefore, glycolysis-targeted therapy has been widely used in anti-tumor combined therapy via small molecular inhibitors of key enzymes and regulatory molecular. The long non-coding RNA, which is a large class of regulatory RNA with longer than 200 nucleotides, is the novel and significant regulator of various biological processes, including metabolic reprogramming. RNA interference and synthetic antisense oligonucleotide for RNA reduction have developed rapidly these years, which presents potent anti-tumor effects both in vitro and in vivo. However, lncRNA-based glycolysis-targeted cancer therapy, as the highly specific and less toxic approach, is still under the preclinical phase. In this review, we highlight the role of lncRNA in glucose metabolism and dissect the feasibility and limitations of this clinical development, which may provide potential targets for cancer therapy.
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Affiliation(s)
- Rui Liu
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157, 5th West Road, Xi'an, 710004, Shaanxi, China
| | - Xiaman Wang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157, 5th West Road, Xi'an, 710004, Shaanxi, China
| | - Ying Shen
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157, 5th West Road, Xi'an, 710004, Shaanxi, China
| | - Aili He
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157, 5th West Road, Xi'an, 710004, Shaanxi, China. .,National-Local Joint Engineering Research Center of Biodiagnostics & Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China.
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127
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Yang X, Zheng Y, Tan J, Tian R, Shen P, Cai W, Liao H. MiR-199a-5p-HIF-1α-STAT3 Positive Feedback Loop Contributes to the Progression of Non-Small Cell Lung Cancer. Front Cell Dev Biol 2021; 8:620615. [PMID: 33681184 PMCID: PMC7929999 DOI: 10.3389/fcell.2020.620615] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/31/2020] [Indexed: 01/27/2023] Open
Abstract
Background: Non-small cell lung cancer (NSCLC) is the most common malignancy worldwide. MiR-199a-5p has been reported to play important roles in multiple tumors, inclusive of NSCLC. However, little is definitively known pertaining to its explicit mechanism of action in NSCLC. Methods: The expressions of miR-199a-5p and hypoxia-inducible factor-1α (HIF-1α) mRNA were quantified employing qRT-PCR. H1299 and A549 cells were transiently transfected with miR-199a-5p mimics or inhibitors. Then, CCK-8 assays, flow cytometry analysis, and Transwell assay were performed for detecting cell proliferation, cell cycle, apoptosis, migration, and invasion of NSCLC cells, respectively. HIF-1α, signal transducer and activator of transcription 3 (STAT3), and p-STAT3 expressions were detected via Western blotting. Bioinformatic analysis and dual-luciferase assay were performed to investigate the interactions among miR-199a-5p, HIF-1α, and STAT3. Xenograft models were established with nude mice for further analyzing the bevacizumab resistance of NSCLC cells. Results: MiR-199a-5p expression was markedly attenuated in NSCLC tissues and cell lines. Overexpression of miR-199a-5p repressed the proliferation, migration, and invasion but induced the apoptosis of NSCLC cells. HIF-1α was identified as a direct target of miR-199a-5p. There was a positive feedback loop among miR-199a-5p, HIF-1α, and STAT3. Co-transfection of HIF-1α or STAT3 overexpression plasmids counteracted the effects of miR-199a-5p. In vivo experiments indicated that the feedback loop was in association with the bevacizumab resistance of NSCLC cells. Conclusion: MiR-199a-5p blocked the progression of NSCLC and sensitized NSCLC cells to bevacizumab by suppressing HIF-1α and STAT3, while the HIF-1α/STAT3 axis suppressed the expression of miR-199a-5p, which forms a positive feedback loop to promote the sustaining progression of NSCLC.
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Affiliation(s)
- Xingping Yang
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuzhen Zheng
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Tan
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Renjiang Tian
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Piao Shen
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Weijie Cai
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hongying Liao
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Yu H, Zhu J, Chang L, Liang C, Li X, Wang W. 3-Bromopyruvate decreased kidney fibrosis and fibroblast activation by suppressing aerobic glycolysis in unilateral ureteral obstruction mice model. Life Sci 2021; 272:119206. [PMID: 33577854 DOI: 10.1016/j.lfs.2021.119206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 01/26/2023]
Abstract
AIMS Enhanced aerobic glycolysis is a motivation of fibroblast-myofibroblast transdifferentiation (FMT), leading to kidney fibrosis. 3-Bromopyruvate (3-BrPA) is a glycolysis inhibitor and has fibrosis-protected effect in liver. This study aims to explore the effects of 3-BrPA on aerobic glycolysis and kidney fibrosis in a unilateral ureteral obstruction (UUO) mice model and transforming growth factor-β1(TGF-β1)-stimulated normal rat kidney fibroblast (NRK49F) cell model in vitro. MAIN METHODS In vivo UUO mouse model and in vitro TGF-β1 stimulated cell model were built. Immunohistochemical staining, Western blots, Real-time PCR and fluorescence microscopy were employed to detect extra cellular matrix (ECM) synthesis, fibroblast activation, aerobic glycolysis switch and related signaling pathways. KEY FINDINGS HE and Masson's Trichrome staining showed that 3-BrPA substantially suppressed kidney injury and interstitial collagen production. 3-BrPA also attenuated ECM accumulation in a dose-dependent manner, as shown by immunohistochemistry staining, RT-PCR and western blot. Furthermore, 3-BrPA inhibited FMT, as indicated by α-SMA and PCNA immunofluorescence double staining. Additionally, the results of MTT assay indicated 3-BrPA prevented TGF-β1 induced fibroblasts proliferation in a time- and dose-dependent manner. Mechanistically, molecular docking results showed that 3-BrPA effectively decreased the aerobic glycolysis related enzymes Hexokinase-2 (HK-2), Lactate dehydrogenase A (LDHA) and Pyruvate kinase isozymes M2 (PKM-2), as well as inhibited IL-1 receptor-associated kinase 4 (IRAK4)/MYC protein levels. SIGNIFICANCE Our study highlighted that 3-BrPA is a potential reno-protective agent in kidney fibrosis through the inhibition of fibroblasts aerobic glycolysis might via IRAK4/MYC signal pathways.
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Affiliation(s)
- Honglin Yu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei City 230022, Anhui Province, China
| | - Jingbo Zhu
- The First Clinic College, Anhui Medical University, Hefei City 230032, Anhui Province, China
| | - Lingyu Chang
- The First Clinic College, Anhui Medical University, Hefei City 230032, Anhui Province, China
| | - Chaozhao Liang
- Department of Urology, Institute of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei City 230022, Anhui Province, China; Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei City 230032, Anhui Province, China.
| | - Xiaohu Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei City 230022, Anhui Province, China.
| | - Wei Wang
- Department of Urology, Institute of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei City 230022, Anhui Province, China; Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei City 230032, Anhui Province, China.
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DLG1-AS1 is activated by MYC and drives the proliferation and migration of hepatocellular carcinoma cells through miR-497-5p/SSRP1 axis. Cancer Cell Int 2021; 21:16. [PMID: 33407499 PMCID: PMC7789637 DOI: 10.1186/s12935-020-01667-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 11/23/2020] [Indexed: 02/08/2023] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been reported to be biological regulators in hepatocellular carcinoma (HCC). DLG1 antisense RNA 1 (DLG1-AS1) has been found to be up-regulated in cervical cancer. However, its function and underlying mechanism in HCC remains unknown. Methods DLG1-AS1 expression was assessed in HCC cells and normal cell by RT-qPCR. Luciferase reporter assay, RNA pull down assay and RIP assay were used to demonstrate the interaction between DLG1-AS1 and miR-497-5p. Results DLG1-AS1 was highly expressed in HCC cells. Silencing of DLG1-AS1 led to the inhibition of HCC cell growth and migration. Besides, MYC induced the transcriptional activation of DLG1-AS1. MYC could facilitate HCC cellular processes by up-regulating DLG1-AS1. MiR-497-5p could interact with DLG1-AS1 in HCC cells. Down-regulation of miR-497-5p could reverse the impacts of DLG1-AS1 silencing on HCC cells. SSRP1 expression could be positively regulated by DLG1-AS1 but was negatively regulated by miR-497-5p. Knockdown of DLG1-AS1 suppressed tumor growth in nude mice. Conclusions DLG1-AS1 is activated by MYC and functions as an oncogene in HCC via miR-497-5p/SSRP1 axis. ![]()
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130
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Abstract
Competing endogenous RNAs (ceRNAs) containing microRNA response elements can competitively interact with microRNA via miRNA response elements, which can combine non-coding RNAs with protein-coding RNAs through complex ceRNA networks. CeRNAs include non-coding RNAs (long non-coding RNAs, circular RNAs, and transcribed pseudogenes) and protein-coding RNAs (mRNAs). Molecular interactions in ceRNA networks can coordinate many biological processes; however, they may also lead to ceRNA network imbalance and thus contribute to cancer occurrence when disturbed. Recent studies indicate that many dysregulated RNAs derived from lung cancer may function as ceRNAs to regulate multitudinous biological functions for lung cancer, including tumor cell proliferation, apoptosis, growth, invasion, migration, and metastasis. This study therefore reviewed the research progress in the field of non-coding and protein-coding RNAs as ceRNAs in lung cancer, and highlighted validated ceRNAs involved in biological lung cancer functions. Furthermore, the roles of ceRNAs as novel prognostic and diagnostic biomarkers were also discussed. Interpreting the involvement of ceRNAs networks in lung cancer will provide new insight into cancer pathogenesis and treatment strategies.
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Affiliation(s)
- Meilian Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Jianguo Feng
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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Jia J, Li H, Chu J, Sheng J, Wang C, Jia Z, Meng W, Yin H, Wan J, He F. LncRNA FAM83A-AS1 promotes ESCC progression by regulating miR-214/CDC25B axis. J Cancer 2021; 12:1200-1211. [PMID: 33442418 PMCID: PMC7797654 DOI: 10.7150/jca.54007] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 11/30/2020] [Indexed: 12/17/2022] Open
Abstract
Background: Recent researches have pinpointed that long non-coding RNA (lncRNA) was tightly related to the carcinogenesis. However, the function of lncRNA in esophageal cell squamous carcinoma (ESCC) remains to be explored. In the current study, we assessed the expression pattern and the biological function of FAM83A-AS1 in ESCC. Methods: qRT-PCR was used to detect the expression of FAM83A-AS1, miR-214, and CDC25B expression in ESCC tissues and cell lines. CCK-8, transwell, apoptosis and cell cycle assays were performed to define the function of FAM83A-AS1 in ESCC cells. Furthermore, the regulation of miR-214 by FAM83A-AS1 was defined by qRT- PCR and rescue assays. In addition, the association between CDC25B, miR-214, CDC25B was confirmed by qRT-PCR. Results: Here, we discovered that FAM83A-AS1 was strongly expressed in ESCC tissues. FAM83A-AS1 abundance was associated with TNM stages and the differentiation grade of ESCC patients. The receiver operating characteristic curve (ROC) analysis indicated the high accuracy of FAM83A-AS1 in ESCC diagnosis. Functionally, inhibiting FAM83A-AS1 repressed cell proliferation, migration, and invasion in ESCC. In addition, we found that FAM83A-AS1 accelerated the cell cycle while inhibited cell apoptosis. Mechanistically, we found that FAM83A-AS1 regulated miR-214 expression, and there was a negative correlation between miR-214 and FAM83A-AS1 in ESCC. Rescue assay indicated that miR-214 could impair the suppressing effect of cell migration induced by FAM83A-AS1 depletion. Furthermore, CDC25B was a direct target of miR-214, and FAM83A-AS1 enhanced CDC25B expression while miR-214 positively CDC25B expression in ESCC. Conclusions: Collectively, we concluded that FAM83A-AS1 facilitated ESCC progression by regulating the miR-214/CDC25B axis. Our study showed FAM83A-AS1 may act as a promising target for ESCC diagnosis and therapy.
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Affiliation(s)
- Jinlin Jia
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Hongle Li
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Jie Chu
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Jinxiu Sheng
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Chang Wang
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Zimo Jia
- Department of Clinical Medicine, Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Weiwei Meng
- Department of Blood Transfusion, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Huiqing Yin
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Junhu Wan
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Fucheng He
- Department of Medical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
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Wang F, Quan Q. The long non-coding RNA SNHG4/microRNA-let-7e/KDM3A/p21 pathway is involved in the development of non-small cell lung cancer. MOLECULAR THERAPY-ONCOLYTICS 2020; 20:634-645. [PMID: 33816782 PMCID: PMC7995486 DOI: 10.1016/j.omto.2020.12.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022]
Abstract
Non-small cell lung cancer (NSCLC) is a foremost cause of malignancy-associated mortality globally. Recent studies have emphasized long non-coding RNAs (lncRNAs) as important biomarkers with diagnostic and therapeutic potential in regard to NSCLC. This study aimed to elucidate the functional role of lncRNA small nucleolar RNA host gene 4 (SNHG4) in NSCLC. Initially, 50 paired cancerous and noncancerous tissues were obtained from NSCLC patients. Human NSCLC H1299 cells were assayed to evaluate viability, colony formation, invasion, migration, cycle arrest, and apoptosis via Cell Counting Kit-8 (CCK-8), plate clone formation, and transwell invasion assays, as well as a scratch test and flow cytometry. A dual-luciferase reporter gene assay was used to examine lncRNA SNHG4 binding with miR-let-7e and miR-let-7e binding with lysine demethylase 3A (KDM3A). H1299 cells were xenografted into nude mice. lncRNAs SNHG4 and KDM3A were both upregulated in NSCLC tissues. The knockdown of lncRNA SNHG4 or KDM3A inhibited H1299 cell viability, colony formation, invasion, migration, and cycle progression while inducing apoptosis. lncRNA SNHG4 was found to bind to miR-let-7e that negatively targeted KDM3A. KDM3A inhibited p53-K372me1, thus reducing p21 expression. The NSCLC development was inhibited by downregulating lncRNA SNHG4 in nude mice. Taken together, the key findings of the current study demonstrate a novel lncRNA SNHG4/let-7e/KDM3A/p21 axis in NSCLC, highlighting a promising therapeutic target for NSCLC.
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Affiliation(s)
- Fan Wang
- Department of General Intervention, Linyi People's Hospital, Linyi 276000, P.R. China
| | - Qingqing Quan
- Department of Respiratory Medicine, Linyi People's Hospital, Linyi 276000, Shandong Province, P.R. China
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133
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Hong M, Tao S, Zhang L, Diao LT, Huang X, Huang S, Xie SJ, Xiao ZD, Zhang H. RNA sequencing: new technologies and applications in cancer research. J Hematol Oncol 2020; 13:166. [PMID: 33276803 PMCID: PMC7716291 DOI: 10.1186/s13045-020-01005-x] [Citation(s) in RCA: 214] [Impact Index Per Article: 53.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 11/22/2020] [Indexed: 02/06/2023] Open
Abstract
Over the past few decades, RNA sequencing has significantly progressed, becoming a paramount approach for transcriptome profiling. The revolution from bulk RNA sequencing to single-molecular, single-cell and spatial transcriptome approaches has enabled increasingly accurate, individual cell resolution incorporated with spatial information. Cancer, a major malignant and heterogeneous lethal disease, remains an enormous challenge in medical research and clinical treatment. As a vital tool, RNA sequencing has been utilized in many aspects of cancer research and therapy, including biomarker discovery and characterization of cancer heterogeneity and evolution, drug resistance, cancer immune microenvironment and immunotherapy, cancer neoantigens and so on. In this review, the latest studies on RNA sequencing technology and their applications in cancer are summarized, and future challenges and opportunities for RNA sequencing technology in cancer applications are discussed.
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Affiliation(s)
- Mingye Hong
- Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Shuang Tao
- Biotherapy Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Ling Zhang
- Health Science Center, The University of Texas, Houston, 77030, USA
| | - Li-Ting Diao
- Biotherapy Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xuanmei Huang
- Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Shaohui Huang
- Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Shu-Juan Xie
- Biotherapy Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Zhen-Dong Xiao
- Biotherapy Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China.
| | - Hua Zhang
- Institute of Laboratory Medicine, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China.
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134
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ZEB1-activated LINC01123 accelerates the malignancy in lung adenocarcinoma through NOTCH signaling pathway. Cell Death Dis 2020; 11:981. [PMID: 33191397 PMCID: PMC7667157 DOI: 10.1038/s41419-020-03166-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/14/2022]
Abstract
Growing incidence of lung adenocarcinoma (LUAD) has been detected recently. Multiple long non-coding RNAs (lncRNAs) have been proven as tumor facilitators or inhibitors by extensive works. Present study concentrated on characterizing the potential role of LINC01123 in LUAD. We explored the differential expression of LINC01123 through qRT-PCR and found the amplification of LINC01123 in LUAD cell lines. It was ascertained that LINC01123 was definitely responsible for the malignant processes of LUAD cells. Further, we validated the ceRNA network of LINC01123/miR-449b-5p/NOTCH1 in LUAD via mechanical experiments. As a transcriptional factor related to epithelial mesenchymal transition (EMT), ZEB1 was responsible for the transcriptional activation of both LINC01123 and NOTCH1. The involvement of NOTCH signaling in LUAD was interrogated through evaluating functional changes after treating with FLI-06 (NOTCH pathway suppressor). It showed that FLI-06-caused NOTCH signaling inactivation suppressed malignant functions in LUAD cells. Additionally, LINC01123 facilitated NOTCH1-dependent NOTCH signaling activation. Rescue experiments probed the modulatory function of LINC01123/miR-449b-5p/NOTCH1 in LUAD cellular processes. Altogether, ZEB1-activated LINC01123 accelerates the malignancy in LUAD through miR-449b-5p/NOTCH1 axis-mediated NOTCH signaling pathway, while NOTCH1 boosts ZEB1 in return. These observations suggest the huge potential of LINC01123 as a new target for LUAD therapy.
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135
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Li J, Liao T, Liu H, Yuan H, Ouyang T, Wang J, Chai S, Li J, Chen J, Li X, Zhao H, Xiong N. Hypoxic Glioma Stem Cell-Derived Exosomes Containing Linc01060 Promote Progression of Glioma by Regulating the MZF1/c-Myc/HIF1α Axis. Cancer Res 2020; 81:114-128. [PMID: 33158815 DOI: 10.1158/0008-5472.can-20-2270] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/02/2020] [Accepted: 10/28/2020] [Indexed: 11/16/2022]
Abstract
Glioma stem cells (GSC) are a subpopulation of tumor cells with special abilities to proliferate and differentiate in gliomas. They are one of the main causes of tumor recurrence, especially under hypoxic conditions. Although long noncoding RNAs (lncRNA) are known to be involved in numerous biological processes and are implied in the occurrence of certain diseases, their role in tumor development and progression remains poorly understood. Here we explored the mechanisms by which lncRNA derived from hypoxic GSCs (H-GSC) cause glioma progression. Isolation and identification of the Linc01060 gene, the exosomes containing them, and the proteins from tumor cells regulating the gene allowed for studying the effects of Linc01060 on proliferation and glycometabolism. H-GSC exerted their effects by transferring exosomes to glioma cells, resulting in a significant increase in Linc01060 levels. Mechanistically, Linc01060 directly interacted with the transcription factor myeloid zinc finger 1 (MZF1) and enhanced its stability. Linc01060 facilitated nuclear translocation of MZF1 and promoted MZF1-mediated c-Myc transcriptional activities. In addition, c-Myc enhanced the accumulation of the hypoxia-inducible factor-1 alpha (HIF1α) at the posttranscriptional level. HIF1α bound the hormone response elements of the Linc01060 promoter, upregulating the transcription of Linc01060 gene. Clinically, Linc01060 was upregulated in glioma and was significantly correlated with tumor grade and poor clinical prognosis. Overall, these data show that secretion of Linc01060-containing exosomes from H-GSCs activates prooncogenic signaling pathways in glioma cells to promote disease progression. SIGNIFICANCE: These findings suggest that inhibition of Linc01060-containing exosomes or targeting the Linc01060/MZF1/c-Myc/HIF1α axis may be an effective therapeutic strategy in glioma.
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Affiliation(s)
- Junjun Li
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Tingting Liao
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Hongya Liu
- Wuhan Cell Learning Technology Co. Ltd., Wuhan, Hubei, P.R. China
| | - Hongliang Yuan
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Taohui Ouyang
- Department of Neurosurgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Jiajing Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Songshan Chai
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Jinsong Li
- Department of Thoracic surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jingchao Chen
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Xiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Hongyang Zhao
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Nanxiang Xiong
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China.
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136
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Tu R, Chen Z, Bao Q, Liu H, Qing G. Crosstalk between oncogenic MYC and noncoding RNAs in cancer. Semin Cancer Biol 2020; 75:62-71. [DOI: 10.1016/j.semcancer.2020.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/09/2020] [Accepted: 10/24/2020] [Indexed: 12/19/2022]
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137
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Ghafouri-Fard S, Shoorei H, Taheri M. The Role of Long Non-coding RNAs in Cancer Metabolism: A Concise Review. Front Oncol 2020; 10:555825. [PMID: 33123468 PMCID: PMC7573295 DOI: 10.3389/fonc.2020.555825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023] Open
Abstract
Dysregulation of metabolic pathways in cancer cells is regarded as a hallmark of cancer. Identification of these abnormalities in cancer cells dates back to more than six decades, far before discovery of oncogenes and tumor suppressor genes. Based on the importance of these pathways, several researchers have aimed at modulation of these functions to intervene with the pathogenic course of cancer. Numerous genes have been shown to participate in the regulation of metabolic pathways, thus aberrant expression of these genes can be involved in the pathogenesis of cancer. The recent decade has experienced a significant attention toward the role of long non-coding RNAs (lncRNAs) in the biological functions. These transcripts regulate expression of genes at several levels, therefore influencing the activity of cancer-related pathways. Among the most affected pathways are those modulating glucose homeostasis, as well as amino acid and lipid metabolism. Moreover, critical roles of lncRNAs in regulation of mitochondrial function potentiate these transcripts as novel targets for cancer treatment. In the current review, we summarize the most recent literature regarding the role of lncRNAs in the cancer metabolism and their significance in the design of therapeutic modalities.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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138
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LncRNA MNX1-AS1 promotes progression of intrahepatic cholangiocarcinoma through the MNX1/Hippo axis. Cell Death Dis 2020; 11:894. [PMID: 33093444 PMCID: PMC7581777 DOI: 10.1038/s41419-020-03029-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/13/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023]
Abstract
Long non-coding RNAs (lncRNAs) have extremely complex roles in the progression of intrahepatic cholangiocarcinoma (ICC) and remain to be elucidated. By cytological and animal model experiments, this study demonstrated that the expression of lncRNA MNX1-AS1 was remarkably elevated in ICC cell lines and tissues, and was highly and positively correlated with motor neuron and pancreas homeobox protein 1 (MNX1) expression. MNX1-AS1 significantly facilitated the proliferation, migration, invasion, and angiogenesis in ICC cells in vitro, and remarkably promoted tumor growth and metastasis in vivo. Further study revealed that MNX1-AS1 promoted the expression of MNX1 via recruiting transcription factors c-Myc and myc-associated zinc finger protein (MAZ). Furthermore, MNX1 upregulated the expression of Ajuba protein via binding to its promoter region, and subsequently, Ajuba protein suppressed the Hippo signaling pathway. Taken together, our results uncovered that MNX1-AS1 can facilitate ICC progression via MNX1-AS1/c-Myc and MAZ/MNX1/Ajuba/Hippo pathway, suggesting that MNX1-AS1 may be able to serve as a potential target for ICC treatment.
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139
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Guo K, Gong W, Wang Q, Gu G, Zheng T, Li Y, Li W, Fang M, Xie H, Yue C, Yang J, Zhu Z. LINC01106 drives colorectal cancer growth and stemness through a positive feedback loop to regulate the Gli family factors. Cell Death Dis 2020; 11:869. [PMID: 33067422 PMCID: PMC7567881 DOI: 10.1038/s41419-020-03026-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 08/23/2020] [Accepted: 08/26/2020] [Indexed: 02/08/2023]
Abstract
Long non-coding RNAs (lncRNAs) are essential contributors to the progression of various human cancers. Long intergenic non-protein coding RNA 1106 is a member of lncRNAs family. Until now, the specific role of LINC01106 in CRC remains undefined. The aim the current study was to unveil the functions of LINC01106 and explore its potential molecular mechanism in CRC. Based on the data of online database GEPIA, we determined that LINC01106 was expressed at a high level in colon adenocarcinoma (COAD) tissues compared to normal colon tissues. More importantly, high level of LINC01106 had negative correlation with the overall survival of COAD patients. Additionally, we also determined the low level of LINC01106 in normal colon tissues based on UCSC database. Through qRT-PCR, we identified that LINC01106 was highly expressed in CRC tissues compared to adjacent normal ones. Similarly, we detected the expression of LINC01106 and confirmed that LINC01106 was expressed higher in CRC cells than that in normal cells. Subsequently, LINC01106 was mainly distributed in the cytoplasm. LINC01106 induced the proliferation, migration, and stem-like phenotype of CRC cells. Mechanistically, cytoplasmic LINC01106 positively modulated Gli4 in CRC cells by serving as a miR-449b-5p sponge. Furthermore, nuclear LINC01106 could activate the transcription of Gli1 and Gli2 through recruiting FUS to Gli1 and Gli2 promoters. Mechanism of investigation unveiled that Gli2 was a transcription activator of LINC01106. In conclusion, Gli2-induced upregulation of LINC01106 aggravates CRC progression through upregulating Gli2, Gli2, and Gli4.
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Affiliation(s)
- Kun Guo
- Department of General Surgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui Province, P. R. China
| | - Wenbin Gong
- Department of General Surgery, Jinling Hospital, School of Medicine, Southeast University, 210009, Nanjing, Jiangsu Province, P. R. China
| | - Qin Wang
- Institute of Clinical Physiology, Jiangsu Health Vocational College, 211800, Nanjing, Jiangsu Province, P. R. China
| | - Guosheng Gu
- Department of General Surgery, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu Province, P. R. China
| | - Tao Zheng
- Department of General Surgery, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu Province, P. R. China
| | - Ying Li
- Institute of Clinical Pharmacology, Anhui Medical University, 230032, Hefei, Anhui Province, P. R. China
| | - Weijie Li
- Department of General Surgery, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu Province, P. R. China
| | - Miao Fang
- Department of General Surgery, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu Province, P. R. China
| | - Haohao Xie
- Department of General Surgery, Jinling Hospital, Nanjing Medical University, 210002, Nanjing, Jiangsu Province, P. R. China
| | - Chao Yue
- Department of General Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, 210009, Nanjing, Jiangsu Province, P. R. China.
| | - Jianbo Yang
- Department of General Surgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui Province, P. R. China.
| | - Zhiqiang Zhu
- Department of General Surgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Hefei, Anhui Province, P. R. China.
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Al-Marsoummi S, Pacella J, Dockter K, Soderberg M, Singhal SK, Vomhof-DeKrey EE, Basson MD. Schlafen 12 Is Prognostically Favorable and Reduces C-Myc and Proliferation in Lung Adenocarcinoma but Not in Lung Squamous Cell Carcinoma. Cancers (Basel) 2020; 12:E2738. [PMID: 32987632 PMCID: PMC7650563 DOI: 10.3390/cancers12102738] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023] Open
Abstract
Schlafen 12 (SLFN12) is an intermediate human Schlafen that induces differentiation in enterocytes, prostate, and breast cancer. We hypothesized that SLFN12 influences lung cancer biology. We investigated survival differences in high versus low SLFN12-expressing tumors in two databases. We then adenovirally overexpressed SLFN12 (AdSLFN12) in HCC827, H23, and H1975 cells to model lung adenocarcinoma (LUAD), and in H2170 and HTB-182 cells representing lung squamous cell carcinoma (LUSC). We analyzed proliferation using a colorimetric assay, mRNA expression by RT-qPCR, and protein by Western blot. To further explore the functional relevance of SLFN12, we correlated SLFN12 with seventeen functional oncogenic gene signatures in human tumors. Low tumoral SLFN12 expression predicted worse survival in LUAD patients, but not in LUSC. AdSLFN12 modulated expression of SCGB1A1, SFTPC, HOPX, CK-5, CDH1, and P63 in a complex fashion in these cells. AdSLFN12 reduced proliferation in all LUAD cell lines, but not in LUSC cells. SLFN12 expression inversely correlated with expression of a myc-associated gene signature in LUAD, but not LUSC tumors. SLFN12 overexpression reduced c-myc protein in LUAD cell lines but not in LUSC, by inhibiting c-myc translation. Our results suggest SLFN12 improves prognosis in LUAD in part via a c-myc-dependent slowing of proliferation.
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Affiliation(s)
- Sarmad Al-Marsoummi
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (S.A.-M.); (J.P.); (K.D.); (M.S.); (E.E.V.-D.)
| | - Jonathan Pacella
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (S.A.-M.); (J.P.); (K.D.); (M.S.); (E.E.V.-D.)
| | - Kaylee Dockter
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (S.A.-M.); (J.P.); (K.D.); (M.S.); (E.E.V.-D.)
| | - Matthew Soderberg
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (S.A.-M.); (J.P.); (K.D.); (M.S.); (E.E.V.-D.)
| | - Sandeep K. Singhal
- Department of Pathology, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA;
| | - Emilie E. Vomhof-DeKrey
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (S.A.-M.); (J.P.); (K.D.); (M.S.); (E.E.V.-D.)
- Department of Surgery, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA
| | - Marc D. Basson
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (S.A.-M.); (J.P.); (K.D.); (M.S.); (E.E.V.-D.)
- Department of Pathology, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA;
- Department of Surgery, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA
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141
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Zhang X, Niu W, Mu M, Hu S, Niu C. Long non-coding RNA LPP-AS2 promotes glioma tumorigenesis via miR-7-5p/EGFR/PI3K/AKT/c-MYC feedback loop. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:196. [PMID: 32962742 PMCID: PMC7510091 DOI: 10.1186/s13046-020-01695-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/31/2020] [Indexed: 01/10/2023]
Abstract
Background Glioblastoma is the most common primary malignant intracranial tumor with poor clinical prognosis in adults. Accumulating evidence indicates that long non-coding RNAs (lncRNAs) function as important regulators in cancer progression, including glioblastoma. Here, we identified a new lncRNA LPP antisense RNA-2 (LPP-AS2) and investigated its function and mechanism in the development of glioma. Methods High-throughput RNA sequencing was performed to discriminate differentially expressed lncRNAs and mRNAs between glioma tissues and normal brain tissues. Expression of LPP-AS2, epidermal growth factor receptor (EGFR) and miR-7-5p in glioma tissues and cell lines was detected by real-time quantitative PCR (RT-qPCR), and the functions of lncRNA LPP-AS2 in glioma were assessed by in vivo and in vitro assays. Insight into the underlying mechanism of competitive endogenous RNAs (ceRNAs) was obtained via bioinformatic analysis, dual luciferase reporter assays, RNA pulldown assays, RNA immunoprecipitation (RIP) and rescue experiments. Results The results of high-throughput RNA-seq indicated lncRNA LPP-AS2 was upregulated in glioma tissues and further confirmed by RT-qPCR. Higher LPP-AS2 expression was related to a poor prognosis in glioma patients. Based on functional studies, LPP-AS2 depletion inhibited glioma cell proliferation, invasion and promoted apoptosis in vitro and restrained tumor growth in vivo, overexpression of LPP-AS2 resulted in the opposite effects. In addition, LPP-AS2 and EGFR were observed in co-expression networks. LPP-AS2 was found to function as a ceRNA to regulate EGFR expression by sponging miR-7-5p in glioma cells. The result of chromatin immunoprecipitation (ChIP) assays validated that c-MYC binds directly to the promoter region of LPP-AS2. As a downstream protein of EGFR, c-MYC was modulated by LPP-AS2 and in turn enhanced LPP-AS2 expression. Thus, lncRNA LPP-AS2 promoted glioma tumorigenesis via a miR-7-5p/EGFR/PI3K/AKT/c-MYC feedback loop. Conclusions Our study elucidated that LPP-AS2 acted as an oncogene through a novel molecular pathway in glioma and might be a potential therapeutic approach for glioma diagnosis, therapy and prognosis.
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Affiliation(s)
- Xiaoming Zhang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P.R. China.,Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, P.R. China
| | - Wanxiang Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P.R. China.,Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, P.R. China
| | - Maolin Mu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P.R. China.,Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, P.R. China
| | - Shanshan Hu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P.R. China. .,Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, P.R. China. .,Anhui Provincial Stereotactic Neurosurgical Institute, Hefei, Anhui, 230001, P.R. China.
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, P.R. China. .,Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, P.R. China. .,Anhui Provincial Stereotactic Neurosurgical Institute, Hefei, Anhui, 230001, P.R. China.
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142
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Lin X, Feng D, Li P, Lv Y. LncRNA LINC00857 regulates the progression and glycolysis in ovarian cancer by modulating the Hippo signaling pathway. Cancer Med 2020; 9:8122-8132. [PMID: 32918541 PMCID: PMC7643679 DOI: 10.1002/cam4.3322] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/28/2020] [Accepted: 07/04/2020] [Indexed: 12/14/2022] Open
Abstract
Ovarian cancer is one of the most common gynecological cancers with high morbidity and mortality, which seriously endangers women's health and quality of life. Long noncoding RNAs (lncRNAs) can regulate the progression of cancers, including ovarian cancer. LINC00857 (long intergenic non‐protein coding RNA 857) has been discovered to be a crucial factor in the regulation of cancer development. Nevertheless, the specific functions and mechanisms of LINC00857 in ovarian cancer remain unclear. The Hippo signaling pathway can involve in cancer progression. In our research, we aimed to investigate the correlation of LINC00857 and Hippo pathway. Quantitative real‐time polymerase chain reaction assay was utilized to test the expression of LINC00857 in ovarian cancer tissues and cells. Functional experiments revealed that LINC00857 silencing led to the inhibition on cell proliferation, migration, invasion, and glycolysis but accelerated cell apoptosis in ovarian cancer. Mechanism experiments, including RNA immunoprecipitation, RNA pull‐down, and luciferase reporter experiments demonstrated that LINC00857 could regulate YAP1 (Yes1 associated transcriptional regulator) by competitively binding to miR‐486‐5p in ovarian cancer. In a word, this study unveiled that LINC00857 regulates YAP1 by competitively binding to miR‐486‐5p and accelerates ovarian cancer progression.
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Affiliation(s)
- Xueke Lin
- Department of Obstetrics and Gynecology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China
| | - Dilu Feng
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Li
- Department of Obstetrics and Gynecology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China
| | - Yuchun Lv
- Department of Obstetrics and Gynecology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China
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143
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Yin D, Hua L, Wang J, Liu Y, Li X. Long Non-Coding RNA DUXAP8 Facilitates Cell Viability, Migration, and Glycolysis in Non-Small-Cell Lung Cancer via Regulating HK2 and LDHA by Inhibition of miR-409-3p. Onco Targets Ther 2020; 13:7111-7123. [PMID: 32801745 PMCID: PMC7383025 DOI: 10.2147/ott.s243542] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 05/27/2020] [Indexed: 01/08/2023] Open
Abstract
Purpose Long non-coding RNAs (lncRNAs) were confirmed to play important roles in human cancers. In this study, we explored the functional role of lncRNA double homeobox A pseudogene 8 (DUXAP8) in non-small-cell lung cancer (NSCLC). Methods Real-time quantitative PCR (RT-qPCR) was used to detect DUXAP8 and microRNA-409-3p (miR-409-3p) expression. CCK-8, cell colony formation assay, and Transwell migration assay were performed to measure cell growth and migration, respectively. The expression of the relative proteins was detected by Western blot. Cell glycolysis was determined by glucose uptake, adenosine triphosphate (ATP) concentration, lactate generation, extracellular acidification rate and oxygen consumption rate assays. Bioinformatics analysis and dual-luciferase reporter assay were used to measure the interaction among DUXAP8, miR-409-3p, hexokinase 2 (HK2) and lactate dehydrogenase A (LDHA). In vivo, subcutaneous tumor formation assay was performed in the nude mice. Results DUXAP8 was highly expressed in NSCLC, while miR-409-3p was downregulated. High expression of DUXAP8 was positively related to the grade division and negatively associated with the 5-year survival rate of NSCLC patients. Downregulated DUXAP8 significantly suppressed cell growth, metastasis and glycolysis. Besides, DUXAP8 sponged miR-409-3p to promote HK2 and LDHA expression. DUXAP8 promoted cell viability, migration and glycolysis by regulating miR-409-3p/HK2/LDHA axis. Moreover, DUXAP8 downregulation markedly inhibited tumor growth in vivo. Conclusion Our findings demonstrated that DUXAP8 served as an oncogene in the progression of NSCLC.
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Affiliation(s)
- Dianhe Yin
- Department of General Practice, Huaihe Hospital of Henan University, Kaifeng 475000, Henan, People's Republic of China
| | - Li Hua
- Department of Respiratory and Critical Care Medicine, Peking University International Hospital, Beijing, People's Republic of China
| | - Jiao Wang
- Department of General Practice, Huaihe Hospital of Henan University, Kaifeng 475000, Henan, People's Republic of China
| | - Yuru Liu
- Department of General Practice, Huaihe Hospital of Henan University, Kaifeng 475000, Henan, People's Republic of China
| | - Xiaoyan Li
- Department of General Practice, Huaihe Hospital of Henan University, Kaifeng 475000, Henan, People's Republic of China
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144
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Xiao Z, Liu Y, Zhao J, Li L, Hu L, Lu Q, Zeng Z, Liu X, Huang D, Yang W, Xu Q. Long noncoding RNA LINC01123 promotes the proliferation and invasion of hepatocellular carcinoma cells by modulating the miR-34a-5p/TUFT1 axis. Int J Biol Sci 2020; 16:2296-2305. [PMID: 32760198 PMCID: PMC7378647 DOI: 10.7150/ijbs.45457] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/25/2020] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC), one of the main causes of cancer-related deaths globally, is characterized by rapid growth and high invasiveness. Accumulating evidence demonstrates that long noncoding RNAs (lncRNAs) play critical roles in the growth and metastasis of HCC. Recently, lncRNA LINC01123 has been found to contribute to cell proliferation and aerobic glycolysis in lung cancer. However, the function of LINC01123 in HCC, as well as the underlying mechanism of its action, remain unclear. Here, we found that the expression of LINC01123 was clearly upregulated in HCC tissues compared to nontumor tissues. Furthermore, expression of LINC01123 in HCC cells was significantly higher than in LO2 cells. Importantly, the upregulated level of LINC01123 was related to unfavorable clinical features and poor prognosis of HCC. Next, we demonstrated that LINC01123 knockdown suppressed the proliferation, migration and invasion of HCC cells in vitro. Depletion of LINC01123 inhibited HCC xenograft growth in vivo. Conversely, ectopic expression of LINC01123 facilitated HCC cell proliferation and invasion. Mechanistically, LINC01123 acted as a molecular sponge for miR-34a-5p in HCC cells. Tuftelin1 (TUFT1) was identified as the target gene of miR-34a-5p. LINC01123 positively regulated TUFT1 level by targeting of miR-34a-5p in HCC cells. Notably, TUFT1 restoration can abolish miR-34a-5p-induced inhibitory effects on HCC cell proliferation, migration and invasion. In conclusion, LINC01123 was overexpressed in HCC and accelerated cancer cell proliferation and invasion by regulating the miR-34a-5p/TUFT1 axis.
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Affiliation(s)
- Zunqiang Xiao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang 310014, China
| | - Yang Liu
- The Medical College of Qindao University, Qindao, Shandong, 266071, China
| | - Junjun Zhao
- Graduate Department, BengBu Medical College, BengBu, Anhui 233030, China
| | - Lijie Li
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang 310014, China
| | - Linjun Hu
- The Medical College of Qindao University, Qindao, Shandong, 266071, China
| | - Qiliang Lu
- The Medical College of Qindao University, Qindao, Shandong, 266071, China
| | - Zhi Zeng
- The Medical College of Qindao University, Qindao, Shandong, 266071, China
| | - Xin Liu
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang 310014, China
| | - Dongsheng Huang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang 310014, China
| | - Wei Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, China
| | - Qiuran Xu
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang 310014, China
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145
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Yang Y, Wu J, Zhou H, Liu W, Wang J, Zhang Q. STAT1-induced upregulation of lncRNA LINC01123 predicts poor prognosis and promotes the progression of endometrial cancer through miR-516b/KIF4A. Cell Cycle 2020; 19:1502-1516. [PMID: 32401659 PMCID: PMC7469438 DOI: 10.1080/15384101.2020.1757936] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been proposed as suppressors or promoters in many tumor processes. LncRNA LINC01123 (LINC01123) was a newly identified lncRNA which was firstly functionally analyzed in lung cancer. However, its expression and function in other tumor types were rarely reported. In this study, we firstly confirmed that LINC01123 was highly expressed in both endometrial cancer (EC) tissues and cell lines using bioinformatics analysis and RT-CPR. Then, we preliminarily analyzed the mechanisms involved in overexpression of LINC01123 in EC, finding that STAT1 could bind directly to the LINC01123 promoter region and activate its transcription. Clinical research with 106 patients indicated that high expression of LINC01123 was associated with advanced clinical progression and poor clinical outcome of EC patients. Functionally, knockdown of LINC01123 suppressed the proliferation, migration and invasion of EC cells, and promoted apoptosis. Mechanistically, we observed that LINC01123 may act as an endogenous sponge by competing for miR-516b, thereby regulating KIF4A. Overall, our study revealed a novel LINC01123/miR-516b/KIF4A pathway regulatory axis in EC pathogenesis. LINC01123 may be a novel prognostic biomarker and therapeutic target in EC.Abbreviations: EC: Endometrial cancer; LncRNA: Long non-coding RNA; EMT: epithelial-mesenchymal transition; miRNA: microRNA; qRT-PCR: Quantitative real-time polymerase chain reaction; SPSS: Statistical Package for Social Sciences; Chip: chromatin-immunoprecipitation, TCGA: The Cancer Genome Atlas; CCK-8: Cell Counting Kit-8; KIF4A: Chromosome-associated kinesin KIF4A.
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Affiliation(s)
- Yuguang Yang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Jin Wu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Hongfeng Zhou
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Wenming Liu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Jincai Wang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Qingyuan Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
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146
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Zhang P, Long Q, Zeng S, Wen M, Lu Q. FOXC1-induced LINC01123 acts as a mediator in triple negative breast cancer. Cancer Cell Int 2020; 20:199. [PMID: 32514244 PMCID: PMC7257197 DOI: 10.1186/s12935-020-01258-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 05/12/2020] [Indexed: 02/08/2023] Open
Abstract
Background MicroRNAs (miRNAs) representing a subclass of non-coding RNAs are dynamically expressed and participate in multiple pathological responses, whereas, the expression pattern or function of miRNAs has not been fully addressed in triple-negative breast cancer (TNBC). Currently we concentrate on dissecting the probable role of microRNA-663a (miR-663a) in TNBC cellular processes. Methods qRT-PCR detected the expression of miR-663a in TNBC cells. Besides, we monitored the effects of miR-663a on TNBC proliferation and apoptosis. On the basis of bioinformatics assistance and mechanical validation, we identified the miRNA-sponging role of LINC01123 and downstream target of miR-663a in TNBC was assessed and verified. The transcription activation of was explored via ChIP and luciferase reporter assays. Results In comparison to MCF-10A, we certified the downregulation of miR-663a in TNBC cell lines. Augmentation of miR-663a was anti-proliferation and pro-apoptosis in TNBC cell lines. LINC01123 protected CMIP against miR-663a suppression through acting as a sponge of miR-663a in TNBC. LINC01123 was transcriptionally induced by FOXC1. Rescue experiment proved that miR-663a suppression or CMIP (c-Maf inducing protein) enhancement could countervail LINC01123 depletion-mediated effects on TNBC cellular processes. Conclusion LINC01123, activated by FOXC1, regulated TNBC growth through miR-663a/CMIP signaling, which unveiled a new functional pathway of FOXC1-induced LINC01123/miR-663a/CMIP in TNBC.
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Affiliation(s)
- Purong Zhang
- Department of Breast Surgery, West China Hospital/West China School of Medicine, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, 610041 People's Republic of China.,Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041 People's Republic of China
| | - Qimin Long
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041 People's Republic of China
| | - Shiyan Zeng
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041 People's Republic of China
| | - Min Wen
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041 People's Republic of China
| | - Qing Lu
- Department of Breast Surgery, West China Hospital/West China School of Medicine, Sichuan University, No. 37, Guoxue Lane, Wuhou District, Chengdu, 610041 People's Republic of China
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147
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Shang T, Zhou X, Chen W. LINC01123 Promotes Progression of Colorectal Cancer via miR-625-5p/LASP1 Axis. Cancer Biother Radiopharm 2020; 36:765-773. [PMID: 32423238 DOI: 10.1089/cbr.2020.3740] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background: Evidence from previous investigations points to a rising trend in the incidence of colorectal cancer (CRC) worldwide. The mortality resulting from this cancer is high. Unlike nonsmall cell lung cancer for which LINC01123 has been investigated, there are few reports on how this long noncoding RNA (lncRNA) regulates CRC. Materials and Methods: The authors evaluated the expression of LINC01123 in CRC tissues by quantitative real-time polymerase chain reaction. Its impact on cancer cell behavior was analyzed with cell counting kit-8 (CCK-8), colony formation, and Transwell invasion assays. To establish the mechanisms of LINC01123 in CRC they carried out RIP and luciferase reporter assays. Results: The results show that LINC01123 expression is abnormally elevated in CRC tissues and cell lines. High LINC01123 expression closely correlates with poor prognosis, advanced TNM stage, and lymph-node metastasis. The authors also show that knockdown of LINC01123 inhibits proliferation and invasion in CRC cells. In mechanism, it is revealed that LINC01123 may function as competitive endogenous RNA (ceRNA) against miR-625-5p to promote LIM and SH3 protein 1 (LASP1) expression. Conclusions: The data indicate that high LINC01123 exerts its oncogenic roles by regulating the miR-625-5p/LASP1 axis in CRC progression.
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Affiliation(s)
- Tao Shang
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Department of Colorectal Surgery, Zhejiang Provincial Hospital of Chinese Traditional Medicine, Hangzhou, China
| | - Xiukou Zhou
- Department of Colorectal Surgery, Zhejiang Provincial Hospital of Chinese Traditional Medicine, Hangzhou, China
| | - Wenbin Chen
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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148
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Mei J, Hao L, Wang H, Xu R, Liu Y, Zhu Y, Liu C. Systematic characterization of non-coding RNAs in triple-negative breast cancer. Cell Prolif 2020; 53:e12801. [PMID: 32249490 PMCID: PMC7260065 DOI: 10.1111/cpr.12801] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/03/2020] [Accepted: 03/11/2020] [Indexed: 12/17/2022] Open
Abstract
Triple‐negative breast cancer (TNBC) is one of the most aggressive subtypes of breast cancer with negativity for oestrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor (HER2). Non‐coding RNAs (ncRNAs) make up most of the transcriptome and are widely present in eukaryotic cells. In recent years, emerging evidence suggests that ncRNAs, mainly microRNAs (miRNAs), long ncRNAs (lncRNAs) and circular RNAs (circRNAs), play prominent roles in the tumorigenesis and development of TNBC, but the functions of most ncRNAs have not been fully described. In this review, we systematically elucidate the general characteristics and biogenesis of miRNAs, lncRNAs and circRNAs, discuss the emerging functions of these ncRNAs in TNBC and present future perspectives in clinical practice.
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Affiliation(s)
- Jie Mei
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Leiyu Hao
- Department of Physiology, Nanjing Medical University, Nanjing, China
| | - Huiyu Wang
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Rui Xu
- Department of Physiology, Nanjing Medical University, Nanjing, China
| | - Yan Liu
- Department of Physiology, Nanjing Medical University, Nanjing, China
| | - Yichao Zhu
- Department of Physiology, Nanjing Medical University, Nanjing, China.,State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Chaoying Liu
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, China
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149
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Hua Q, Mi B, Xu F, Wen J, Zhao L, Liu J, Huang G. Hypoxia-induced lncRNA-AC020978 promotes proliferation and glycolytic metabolism of non-small cell lung cancer by regulating PKM2/HIF-1α axis. Theranostics 2020; 10:4762-4778. [PMID: 32308748 PMCID: PMC7163453 DOI: 10.7150/thno.43839] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/07/2020] [Indexed: 12/25/2022] Open
Abstract
Rationale: Non-small cell lung cancer (NSCLC) is a deadly disease with a hallmark of aberrant metabolism. The mechanism of glycolysis associated lncRNA underlying the aggressive behaviors of NSCLC is poorly understood. Methods: The expression level of AC020978 in NSCLC was measured by quantitative real-time PCR and fluorescence in situ hybridization (FISH) assay. The biological role of AC020978 in cell proliferation and aerobic glycolysis was determined by functional experiments in vitro and in vivo. The transcription of AC020978 was assessed by dual-luciferase reporter and chromatin immunoprecipitation (ChIP) assay. RNA pull-down, mass spectrometry and RNA immunoprecipitation (RIP) assays were used to identify the interaction protein with AC020978. Western blotting, in situ proximity ligation assay (PLA), and co-immunoprecipitation (co-IP) were performed to reveal the potential mechanism of AC020978. Results: The present study indicated that AC020978 was upregulated in NSCLC, significantly correlated with advanced TNM stage and poor clinical outcomes, representing as an independent prognostic predictor. Functional assays revealed AC020978's role in promoting cell growth and metabolic reprogramming. Moreover, AC020978 was an upregulated lncRNA under glucose starvation as well as hypoxia conditions, and directly transactivated by HIF-1α. Mechanistic investigations identified that AC020978 directly interacted with Pyruvate kinase isozymes M2 (PKM2) and enhanced PKM2 protein stability. Besides, this study uncovered that AC020978 could promote the nuclear translocation of PKM2 and regulate PKM2-enhanced HIF-1α transcription activity. Conclusions: Together, these data provided evidence that AC020978 conferred an aggressive phenotype to NSCLC and was a poor prognosticator. Targeting AC020978 might be an effective therapeutic strategy for NSCLC.
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Affiliation(s)
- Qian Hua
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Baoming Mi
- Department of Nuclear Medicine, The second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, China
| | - Fei Xu
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jun Wen
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Li Zhao
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Gang Huang
- Department of Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
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150
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Wu W, Xi W, Li H, Yang M, Yao X. Circular RNA circ‑ACACA regulates proliferation, migration and glycolysis in non‑small‑cell lung carcinoma via miR‑1183 and PI3K/PKB pathway. Int J Mol Med 2020; 45:1814-1824. [PMID: 32236577 PMCID: PMC7169939 DOI: 10.3892/ijmm.2020.4549] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/24/2020] [Indexed: 12/17/2022] Open
Abstract
Non-small cell lung carcinoma (NSCLC) accounts for 85% of all lung cancers and the five-year survival rate is ~1% in the late stage. Circular RNAs (circRNAs) were reported to be involved in the progression of diverse human cancers. However, the role of circ-ACACA in NSCLC progression remains elusive. Quantitative polymerase chain reaction was conducted to detect the expression levels of circ-ACACA and microRNA (miR)-1183 in NSCLC tissues and cells. A Cell Counting Kit-8 assay and transwell assay were employed to check proliferation and migration, respectively. Metabolic alternations in NSCLC cells were monitored by the Seahorse XFe96 analyzer. The protein levels of cellular myelocytomatosis, matrix metallopeptidase 9, glucose transporter 1, phosphatase and tensin homolog, phosphoinositide 3-kinases (PI3K), phosphorylated PI3K (p-PI3K), protein kinase B (PKB) and p-PKB in samples were measured by western blotting. The interaction between circ-ACACA and miR-1183 was predicted by circular RNA Interactome, which was verified by dual-luciferase reporter assay, RNA immunoprecipitation assay and RNA pull-down assay. Xenograft tumor model was established to investigate the biological roles of circ-ACACA in vivo. The level of circ-ACACA was markedly upregulated in NSCLC tissues and cells, which was contrary to the expres-sion of miR-1183. Knockdown of circ-ACACA inhibited proliferation and migration of NSCLC cells and also reduced the glycolysis rate. In addition, miR-1183 was a target of circ-ACACA and its downregulation reversed circ-ACACA silencing-mediated inhibitory impact on NSCLC progression. Further studies indicated that circ-ACACA regulated the PI3K/PKB pathway through interacting with miR-1183 and downregulation of circ-ACACA suppressed tumor growth. Knockdown of circ-ACACA impeded NSCLC progression by sponging miR-1183 and inactivating the PI3K/PKB signaling pathway.
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Affiliation(s)
- Wenwen Wu
- Department of Oncology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Wei Xi
- Department of Oncology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Huimin Li
- Department of Oncology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Mengxiang Yang
- Department of Oncology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Xialei Yao
- Department of Oncology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
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