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Cui Y, Jiang N, Liu X, Huang J, Chen W. LINC00265 can Serve as a Potential Biomarker for Predicting Increased Disease Risk, Systemic Inflammation, Disease Severity and Poor Prognosis in Sepsis. Immunol Invest 2024:1-12. [PMID: 38589355 DOI: 10.1080/08820139.2024.2332791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
BACKGROUND Identifying effective therapeutic targets is of great significance for improving early diagnosis and prognosis of sepsis. This study aims to explore the role of LINC00265 in sepsis. METHODS This is a retrospective study based on data collected from sepsis patients in 2017-2018. The basic clinical information of all subjects were collected and the survival of the sepsis patients within 28 days was monitored. The expression of LINC00265 was detected by qPCR. Receiver operating characteristics and Cox regression analysis were used to evaluate the diagnostic and prognostic value of LINC00265 in patients with sepsiss. RESULTS Compared with the healthy population, the expression of LINC00265 was significantly upregulated in patients with sepsis distinguishing them from healthy individuals. This expression was patients with sepsis positively correlated with the APACHEII score, tumor necrosis factor α, interleukin-6 (IL-6), IL-8, and IL-17, and negatively correlated with IL-10. LINC00265 expression was upregulated in the sepsis death group, predicting a lower rate in patients with patients with sepsis. The higher expression of LINC00265 was correlated with lower cumulative patient sursvival. CONCLUSION LINC00265 is upregulated in patients with sepsis, and its high expression predicts increased disease severity, heightened inflammation, and a poorer prognosis.
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Affiliation(s)
- Yiming Cui
- Department of Critical Care Medicine, Nanjing LuHe People's Hospital, Nanjing, China
| | - Nan Jiang
- Emergency Department, Daqing Oilfield General Hospital, Daqing, China
| | - Xin Liu
- Department of Infectious Diseases, The First People's Hospital of Neijiang, Neijiang, China
| | - Jianyuan Huang
- Department of General Surgery (Thyroid Gland/Blood Vessel), The First People's Hospital of Neijiang, Neijiang, China
| | - Wei Chen
- Department of Respiratory and Critical Care Medicine, Youyang Tujia and Miao Autonomous County People's Hospital, Chongqing, China
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Yang J, Yang S, Cai J, Chen H, Sun L, Wang J, Hou G, Gu S, Ma J, Ge J. A Transcription Factor ZNF384, Regulated by LINC00265, Activates the Expression of IFI30 to Stimulate Malignant Progression in Glioma. ACS Chem Neurosci 2024; 15:290-299. [PMID: 38141017 DOI: 10.1021/acschemneuro.3c00562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023] Open
Abstract
Glioma remains one of the most challenging primary brain malignancies to treat. Long noncoding RNAs (lncRNAs) and mRNAs (mRNAs) are implicated in regulating the malignant phenotypes of cancers including glioma. This study aimed to elucidate the functions and mechanisms of lncRNA LINC00265 and mRNA IFI30 in the pathogenesis of glioma. Quantitative real-time polymerase chain reaction (RT-qPCR) analysis revealed the upregulated expression of LINC00265 and IFI30 in glioma cells compared to normal human astrocytes. Western blot (WB) quantified the associated proteins. Glioma stemness and epithelial-to-mesenchymal transition (EMT) were assessed by aldehyde dehydrogenase 1 (ALDH1) activity, sphere formation, and WB. Mechanistic and rescue assays evaluated the LINC00265/miR-let-7d-5p/IFI30/ZNF384/IGF2BP2 axis. The results demonstrated that LINC00265 and IFI30 were highly expressed in glioma cells, promoting stemness and EMT. ZNF384 was identified as a transcription factor that upregulates IFI30. Moreover, LINC00265 elevated ZNF384 by sponging miR-let-7d-5p and recruiting IGF2BP2. In conclusion, LINC00265 and IFI30 act as oncogenes in glioma by driving stemness and EMT, underscoring their potential as therapeutic targets.
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Affiliation(s)
- Jian Yang
- Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, No.160 Pujian Road, Pudong New Area, Shanghai 200127, China
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Shenghe Yang
- Yancheng Tinghu District People's Hospital, Yancheng, Jiangsu 224002, China
| | - Jinlian Cai
- 910 Hospital of the Joint Logistics Team, Quanzhou, Fujian 362000, China
| | - Hongjin Chen
- Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200240, China
| | - Lihua Sun
- Hainan Women and Children's Medical Center, Haikou, Hainan 571199, China
| | - Jiajia Wang
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Guoqiang Hou
- Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, No.160 Pujian Road, Pudong New Area, Shanghai 200127, China
| | - Shuo Gu
- Hainan Women and Children's Medical Center, Haikou, Hainan 571199, China
| | - Jie Ma
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Jianwei Ge
- Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, No.160 Pujian Road, Pudong New Area, Shanghai 200127, China
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Ge B, Zhang X, Zhou W, Mo Y, Su Z, Xu G, Chen Q. LINC00265 Promotes Metastasis and Progression of Hepatocellular Carcinoma by Interacting with E2F1 at The Promoter of CDK2. Cell J 2022; 24:294-301. [PMID: 35892231 PMCID: PMC9315211 DOI: 10.22074/cellj.2022.8035] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 07/18/2021] [Indexed: 11/04/2022]
Abstract
Objective This study aimed to explore biological function of long intergenic non-protein coding RNA 265 (LINC00265) in hepatocellular carcinoma (HCC) cells, and evaluate its potential function as a biomarker. Materials and Methods In this experimental study, GEPIA database and Kaplan-Meier Plotter database were employed to analyze LINC00265 expression in HCC tissue samples and its predicting value for prognosis. LINC00265 expression in HCC tissues and cells was detected by quantitative real-time polymerase chain reaction (qRT-PCR). After overexpressing and knocking-down of LINC00265 in HCC cells, cell counting kit-8 (CCK-8) and 5-Ethynyl-2'- deoxyuridine (EdU) assays were adopted to detect proliferation of HCC cells. Transwell assay was used to detect migration and invasion of HCC cells. Interaction of LINC00265 with E2F transcription factor 1 (E2F1) was verified by the catRAPID online analysis tool, RNA pull-down experiment and RNA binding protein immunoprecipitation (RIP) assay. Binding of E2F1 to the promoter region of cyclin-dependent kinases 2 (CDK2) was detected by dual-luciferase reporter assay and chromatin immunoprecipitation. Regulatory effects of LINC00265 and E2F1 on CDK2 expression were probed by Western blot. Results LINC00265 expression was increased in HCC tissues and cells. LINC00265 overexpression promoted proliferation, migration and invasion of HCC cells, and knocking-down LINC00265 worked oppositely. LINC00265 could bind to E2F1 and it could enhance combination of E2F1 and CDK2 promoter regions, thus promoting CDK2 transcription. LINC00265 overexpression promoted expression of CDK2 in HCC cells. Conclusion Our data suggested that LINC00265 can promote malignant behaviors of HCC cells by recruiting E2F1 to the promoter region of CDK2.
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Affiliation(s)
- Beihai Ge
- Department of Neurology, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China
| | - Xian Zhang
- Department of Neurology, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China
| | - Wei Zhou
- Department of Neurosurgery, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China
| | - Yun Mo
- Department of Neurology, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China
| | - Zhou Su
- Department of Neurology, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China
| | - Guolong Xu
- Department of Neurology, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China
| | - Qiang Chen
- Department of Psychiatry, Guangxi Zhuang Autonomous Region Brain Hospital, Liuzhou, Guangxi, China ,Department of PsychiatryGuangxi Zhuang Autonomous Region Brain HospitalLiuzhouGuangxiChina
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Zhi Y, Sun F, Cai C, Li H, Wang K, Sun J, He T, Ji Z, Liu Z, Wang H, Cheng R. LINC00265 promotes the viability, proliferation, and migration of bladder cancer cells via the miR-4677-3p/FGF6 axis. Hum Exp Toxicol 2021; 40:S434-S446. [PMID: 34591706 DOI: 10.1177/09603271211043479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Bladder cancer (BCa) is a common genitourinary malignancy with higher incidence in males. Long intergenic non-protein coding RNA 265 (LINC00265) is identified as an oncogene in many malignancies, while its role in BCa development remains unknown. PURPOSE To explore the functions and mechanism of LINC00265 in BCa. RESEARCH DESIGN Reverse transcription quantitative polymerase chain reaction was performed to examine LINC00265 expression in BCa cells. Cell counting kit-8 assays, colony formation assays, TdT-mediated dUTP Nick-End Labeling assays, and Transwell assays were conducted to examine BCa cell viability, proliferation, apoptosis, and migration. Luciferase reporter assays and RNA immunoprecipitation assays were carried out to explore the binding capacity between miR-4677-3p and messenger RNA fibroblast growth factor 6 (FGF6) (or LINC00265). Xenograft tumor model was established to explore the role of LINC00265 in vivo. RESULTS LINC00265 was highly expressed in BCa cells. LINC00265 knockdown inhibited xenograft tumor growth and BCa cell viability, proliferation and migration while enhancing cell apoptosis. Moreover, LINC00265 interacted with miR-4677-3p to upregulate the expression of FGF6. FGF6 overexpression reversed the suppressive effect of LINC00265 knockdown on malignant phenotypes of BCa cells. CONCLUSIONS LINC00265 promotes the viability, proliferation, and migration of BCa cells by binding with miR-4677-3p to upregulate FGF6 expression.
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Affiliation(s)
- Yunlai Zhi
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Fanghu Sun
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Chengkuan Cai
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Haitao Li
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Kunpeng Wang
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Jinyu Sun
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Tian He
- Department of Orthopedics Surgery, Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University, Yantai, Shandong, China
| | - Zhengshuai Ji
- Department of Urology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Zhaofei Liu
- Department of Urology, Lianyungang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Lianyungang, Jiangsu, China
| | - Heng Wang
- Department of Urology, Lianyungang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Lianyungang, Jiangsu, China
| | - Ruifei Cheng
- Department of Clinical Laboratory, Lianyungang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Lianyungang, Jiangsu, China
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Zhao D, Xing Q, Song H, Zhao Y, Guo G. LINC00265/miR-4500 Axis Accelerates Acute Lymphoblastic Leukemia Progression by Enhancing STAT3 Signals. Cancer Manag Res 2021; 13:8147-8156. [PMID: 34737643 PMCID: PMC8560060 DOI: 10.2147/cmar.s274590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/01/2020] [Indexed: 12/13/2022] Open
Abstract
Background Long noncoding RNA LINC00265 or miR-4500 is involved in the pathogenesis of many cancers. However, their functions in acute lymphoblastic leukemia (ALL) remain unknown. In this study, we investigated how LINC00265 and miR-4500 regulate the malignant characteristics of ALL. Methods Real-time PCR was used in examining the expression of LINC00265 in ALL cell lines and blood of patients with ALL. Cell proliferation, cell migration, and xenograft tumor assays were performed to verify the function of LINC00265 subjected to overexpressing and silencing experiments. The ceRNA mechanism with LINC00265/miR-4500/STAT3 was investigated through luciferase and RNA pull-down assays. Finally, the function of the LINC00265/miR-4500/STAT3 axis subjected to overexpressing and silencing assays was determined through cell proliferation, cell migration, and xenograft tumor assays. Results LINC00265 was highly expressed in ALL cell lines and blood of patients with ALL and facilitated the proliferation, migration, invasion, and growth of xenograft tumors of ALL cells. The silencing of LINC00265 expression with LINC00265 siRNA significantly inhibited the malignancy of the ALL cells. RNA pull-down and luciferase assays demonstrated that LINC00265 competitively targeted miR-4500 and enhanced STAT3 expression. Furthermore, miR-4500 inhibitors or overexpressed LINC00265 up-regulated STAT3 expression, and miR-4500 mimics or STAT3 shRNAs eliminated the LINC00265-induced malignancy of the ALL cells. Conclusion Mechanistically, LncRNA LINC00265 can competitively interact with miR-4500 and thereby up-regulates STAT3 signaling and enhances the malignancy of tumors.
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Affiliation(s)
- Donglu Zhao
- No. 4 Ward of Hematology Department, Institute of Hematology and Oncology, Harbin First Hospital, Harbin 150010, Heilongjiang Province, People's Republic of China
| | - Qi Xing
- No. 4 Ward of Hematology Department, Institute of Hematology and Oncology, Harbin First Hospital, Harbin 150010, Heilongjiang Province, People's Republic of China
| | - Hang Song
- No. 4 Ward of Hematology Department, Institute of Hematology and Oncology, Harbin First Hospital, Harbin 150010, Heilongjiang Province, People's Republic of China
| | - Yan Zhao
- No. 4 Ward of Hematology Department, Institute of Hematology and Oncology, Harbin First Hospital, Harbin 150010, Heilongjiang Province, People's Republic of China
| | - Guiying Guo
- No. 4 Ward of Hematology Department, Institute of Hematology and Oncology, Harbin First Hospital, Harbin 150010, Heilongjiang Province, People's Republic of China
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Yu S, Cui Z, Zhou J, Wang K, Li Q, Sun H, Hu Z. LINC00265 maintains hepatocyte proliferation during liver regeneration by targeting miRNA-28-5p. Biosci Biotechnol Biochem 2021; 85:528-536. [PMID: 33624782 DOI: 10.1093/bbb/zbaa049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/15/2020] [Indexed: 12/30/2022]
Abstract
Long noncoding RNAs have been implicated in many biological processes, but their roles in liver regeneration still need to be illustrated. Therefore, we aimed to investigate the role of LINC00265 as a pivotal regulator of hepatocyte proliferation during liver regeneration. It was found that LINC00265 is significantly upregulated in rat liver tissues at various time points after 2/3 liver resection. LINC00265 knockdown inhibited hepatocyte proliferation, induced cell apoptosis and led to G2/M phase cell cycle arrestment. In rats subjected to surgery, LINC00265 knockdown decreased liver/body weight ratio, attenuated improvement from liver damage and reduced Ki67 and PCNA expression. Luciferase reporter assays confirmed that miR-28-5p was a direct target of LINC00265, and inhibition of miR-28-5p abolished the effect of LINC00265 knockdown. In summary, LINC00265 might maintain hepatocyte proliferation by targeting miR-28-5p during liver regeneration and should be considered as a promising therapeutic option for hepatocyte regeneration after liver resection.
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Affiliation(s)
- Sheng Yu
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhonglin Cui
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jie Zhou
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kai Wang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qingping Li
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hang Sun
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhigang Hu
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Sun S, Li W, Ma X, Luan H. Long Noncoding RNA LINC00265 Promotes Glycolysis and Lactate Production of Colorectal Cancer through Regulating of miR-216b-5p/TRIM44 Axis. Digestion 2021; 101:391-400. [PMID: 31079111 DOI: 10.1159/000500195] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/08/2019] [Indexed: 02/04/2023]
Abstract
AIM To examine the expression status of long-noncoding RNA LINC00265 and mechanistically elucidate its involvements in colorectal cancer (CRC). METHODS Relative abundances of LINC00265, miR-216b-5p, and tripartite-motif (TRIM)44 transcript were determined with real-time polymerase chain reaction. Cell viability was measured with cell counting kit-8 kit. Glucose uptake, pyruvate, and lactate production were quantified with commercially available kits. The potential regulatory effects of miR-216b-5p on both LINC00265 and TRIM44 were interrogated by luciferase reporter assay. The direct association between miR-216b-5p with both LINC00265 and TRIM44 was analyzed with pull-down assay. The TRIM44 protein was quantitated by western blotting. RESULTS LINC00265 was upregulated in CRC both in vivo and in vitro, which intimately associated with poorer prognosis. LINC00265-deficiency resulted into decreases in cell viability, glucose uptake, pyruvate production, and lactate production. Mechanistically, LINC00265 directly bound to miR-216b-5p and negatively regulated miR-216b-5p. Consequently, the suppression on TRIM44 expression was released. Supplementation with ectopic miR-216b-5p significantly compromised the oncogenic activities of LINC00265 in CRC cells. CONCLUSION Our study highlighted the contribution of LINC00265/miR-216b-5p/TRIM44 signaling axis in CRC.
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Affiliation(s)
- Shangfeng Sun
- Department of Colorectal Anal Surgery, The Central Hospital of Zaozhuang Mining Group of Shandong, Qilianshan Road, High-Tech Zone, Zaozhuang, China
| | - Weiwei Li
- Department of Clinical Laboratory, The Central Hospital of Zaozhuang Mining Group of Shandong, Qilianshan Road, High-Tech Zone, Zaozhuang, China
| | - Xiaomin Ma
- Department of Clinical Laboratory, The Central Hospital of Zaozhuang Mining Group of Shandong, Qilianshan Road, High-Tech Zone, Zaozhuang, China
| | - Hong Luan
- Department of Colorectal Anal Surgery, The Central Hospital of Zaozhuang Mining Group of Shandong, Qilianshan Road, High-Tech Zone, Zaozhuang, China,
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Yang Z, OuYang X, Zheng L, Dai L, Luo W. Long intergenic noncoding RNA00265 promotes proliferation of gastric cancer via the microRNA-144-3p/Chromobox 4 axis. Bioengineered 2021; 12:1012-1025. [PMID: 33464142 PMCID: PMC8291797 DOI: 10.1080/21655979.2021.1876320] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The expression and biological function of long intergenic noncoding RNA00265 (LINC00265) in gastric cancer (GC) have not yet been explored. This study aimed to detect LINC00265 expression in GC tissues and cell lines, investigate its roles in the proliferation of GC cells in vitro, and elucidate the regulatory mechanisms of LINC00265 action. It was found that LINC00265 expression was significantly upregulated in GC tissue samples and cell lines compared with their normal counterparts. Additionally, LINC00265 knockdown could inhibit GC cell proliferation in vitro. Further investigation revealed that LINC00265 acted as a competing endogenous RNA for microRNA-144-3p (miR-144-3p) and inhibition of miR-144-3p markedly counteracted LINC00265 knockdown-meditated suppression on GC cell proliferation. Additionally, Chromobox 4 (CBX4) was upregulated in GC and silencing CBX4 could reduce GC cell proliferation. Then, CBX4 mRNA was demonstrated to be a direct target of miR-144-3p in GC cells and LINC00265/miR-144-3p axis could regulate CBX4 expression. Taken together, LINC00265 may promote GC cell proliferation via the miR-144-3p/CBX4 axis.
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Affiliation(s)
- Zengxi Yang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Xi OuYang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Liang Zheng
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Lizhen Dai
- Department of Obstetrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenjuan Luo
- Department of Ophthalmology, Lanzhou University Second Hospital, Lanzhou, China
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Xiao Y, Li C, Wang H, Liu Y. LINC00265 targets miR-382-5p to regulate SAT1, VAV3 and angiogenesis in osteosarcoma. Aging (Albany NY) 2020; 12:20212-20225. [PMID: 33109774 PMCID: PMC7655165 DOI: 10.18632/aging.103762] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
We explored the mechanism by which LINC00265 regulates angiogenesis of osteosarcoma cells via the miR-382-5p/spermidine/spermine N1-acetyltransferase-1 (SAT1) and miR-382-5p/vav guanine nucleotide exchange factor 3 (VAV3) axis. Cell scratch assay, Transwell assay and tube formation assay were applied to detect cell migration, invasion and tube formation abilities. The effects of LINC00265 targeting miR-382-5p in osteosarcoma in vivo were studied using a tumour-burden assay. A total of 70 genes potentially involved in osteosarcoma angiogenesis were identified, and a Gene Ontology (GO) analysis found that SAT1 and VAV3 were closely related to angiogenesis. Bioinformatics analysis and clinical experiments confirmed that LINC00265, SAT1 and VAV3 were overexpressed in osteosarcoma and related to a poor prognosis, whereas miR-382-5p was downregulated and associated with a poor prognosis. It was confirmed that LINC00265 promoted the proliferation, migration, invasion and angiogenesis of osteosarcoma cells by targeting miR-382-5p to mediate SAT1 and VAV3. Collectively, LINC00265 might promote proliferation, migration, invasion and angiogenesis by targeting miR-382-5p/SAT1 and miR-382-5p/VAV3 in osteosarcoma.
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Affiliation(s)
- Ying Xiao
- Department of Operating Center, The First Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Chunling Li
- Department of Operating Center, The First Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Hongyue Wang
- Department of Nephrology, The First Hospital of Jilin University, Changchun 130000, Jilin, China
| | - Yijun Liu
- Department of Orthopaedics, The First Hospital of Jilin University, Changchun 130000, Jilin, China
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Zhang F, Li Q, Zhu K, Zhu J, Li J, Yuan Y, Zhang P, Zhou L, Liu L. LncRNA LINC00265/miR-485-5p/IRF2-mediated autophagy suppresses apoptosis in acute myeloid leukemia cells. Am J Transl Res 2020; 12:2451-2462. [PMID: 32655783 PMCID: PMC7344095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Extensive studies have shown that long non-coding RNAs (lncRNAs) play important roles in multiple cancers. The present study aimed to investigate the role and mechanism of lncRNA LINC00265 in the regulation of apoptosis in acute myeloid leukemia (AML) cells. METHODS Gain- or loss-of-function experiments were conducted in AML cells to explore the effect of LINC00265 on AML. Autophagy was assessed by examining levels of Beclin-1, p62, and ratio of LC3-II/LC3-I. Cell proliferation and apoptosis of AML cells were evaluated by CCK-8 assay and flow cytometry, respectively. RNA pull-down was performed to enrich miR-485-5p interacted with LINC00265. The interaction between miR-485-5p and IRF2 3'UTR was analyzed by luciferase reporter assay. RESULTS LINC00265 expression was significantly up-regulated, whereas miR-485-5p was down-regulated in serum of AML patients and AML cell lines. LINC00265 promoted, whereas miR-485-5p suppressed autophagy in AML cells. Mechanistically, LINC00265 functioned as a ceRNA for miR-485-5p to facilitate IRF2 expression. More importantly, LINC00265 overexpression or miR-485-5p inhibitor reversed the 3-methyladenine (3-MA, an autophagy inhibitor)-mediated proliferation-inhibitory and pro-apoptotic effects, whereas LINC00265 silencing or miR-485-5p mimic overturned the proliferation-promoting and anti-apoptotic effects of autophagy activator rapamycin. CONCLUSION LINC00265 attenuates AML cell apoptosis by inducing autophagy via miR-485/IRF2 axis.
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Affiliation(s)
- Feng Zhang
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Qianwen Li
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Kai Zhu
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Junfeng Zhu
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Jiajia Li
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Yuan Yuan
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Pingping Zhang
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Lili Zhou
- Department of Hematology Laboratory, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
| | - Lin Liu
- Department of Hematology, The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233004, Anhui, PR China
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Ge H, Yan Y, Yue C, Liang C, Wu J. Long Noncoding RNA LINC00265 Targets EGFR and Promotes Deterioration of Colorectal Cancer: A Comprehensive Study Based on Data Mining and in vitro Validation. Onco Targets Ther 2019; 12:10681-10692. [PMID: 31824175 PMCID: PMC6901053 DOI: 10.2147/ott.s227482] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 11/21/2019] [Indexed: 12/12/2022] Open
Abstract
Background LncRNAs are found to be aberrantly expressed in human cancers and could function as potential oncogenes or tumor suppressor genes. LINC00265 is a newly discovered LncRNA and its function in colorectal cancer (CRC) remains unknown. Methods Comprehensive bioinformatics analysis were performed to investigate the expression, clinical significance and potential biologic functions of LINC00265 in CRC based on the data from the Cancer Genome Atlas (TCGA). To further investigate the potential role of LINC00265 in CRC, we knocked down the LINC00265 expression in HT29 cells. The cell proliferation, invasion, cycle distribution, and apoptosis were evaluated in control, NC and siRNA groups. Additionally, effect of LINC00265 on the expression of EGFR was also measured. Results The expression level of LINC00265 is increased in CRC tissues. Elevated level of LINC00265 is correlated with lymph node metastases and advanced pathological stage. We obtained 269 LINC00265 related genes; the results of functional analysis of these genes revealed that LINC00265 might involve in carcinogenesis of CRC. In addition, further experiments indicated that LINC00265 knockdown impaired cell proliferation and invasion, promoted cell cycle distribution and apoptosis in HT29 cells. Moreover, Western blot analysis revealed that downregulation of LINC00265 suppressed the expression of EGFR. Conclusion Our results indicate that LINC00265 induces cell proliferation, migration and inhibits CRC cells apoptosis by targeting EGFR. LINC00265 could be served as a diagnostic factor and therapeutic target for CRC patients.
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Affiliation(s)
- Hua Ge
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, The Third Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Yan Yan
- Quality Control Department, The First People's Hospital of Zunyi, The Third Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People's Republic of China
| | - Chaosen Yue
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Chaojie Liang
- Department of General Surgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Jixiang Wu
- Department of General Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China
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